KR20180101807A - Coating composition - Google Patents
Coating composition Download PDFInfo
- Publication number
- KR20180101807A KR20180101807A KR1020170028211A KR20170028211A KR20180101807A KR 20180101807 A KR20180101807 A KR 20180101807A KR 1020170028211 A KR1020170028211 A KR 1020170028211A KR 20170028211 A KR20170028211 A KR 20170028211A KR 20180101807 A KR20180101807 A KR 20180101807A
- Authority
- KR
- South Korea
- Prior art keywords
- epoxy resin
- powder coating
- coating composition
- equivalent
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000008199 coating composition Substances 0.000 title claims description 33
- 239000003822 epoxy resin Substances 0.000 claims abstract description 93
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 93
- 239000000843 powder Substances 0.000 claims abstract description 52
- 239000003795 chemical substances by application Substances 0.000 claims description 27
- 239000004593 Epoxy Substances 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 15
- 239000000049 pigment Substances 0.000 claims description 14
- 239000001023 inorganic pigment Substances 0.000 claims description 13
- 230000009477 glass transition Effects 0.000 claims description 11
- 229920003986 novolac Polymers 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 150000008065 acid anhydrides Chemical class 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical group [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- -1 divinyl chloride Chemical compound 0.000 claims description 4
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 claims description 2
- UITKHKNFVCYWNG-UHFFFAOYSA-N 4-(3,4-dicarboxybenzoyl)phthalic acid Chemical compound C1=C(C(O)=O)C(C(=O)O)=CC=C1C(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 UITKHKNFVCYWNG-UHFFFAOYSA-N 0.000 claims description 2
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 claims description 2
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 claims description 2
- 229930003836 cresol Natural products 0.000 claims description 2
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 claims description 2
- 150000002460 imidazoles Chemical class 0.000 claims description 2
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 claims description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims 3
- 239000004841 bisphenol A epoxy resin Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 abstract description 34
- 239000011248 coating agent Substances 0.000 abstract description 32
- 239000000463 material Substances 0.000 abstract description 14
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 14
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 8
- 239000000654 additive Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 description 4
- LXBGSDVWAMZHDD-UHFFFAOYSA-N 2-methyl-1h-imidazole Chemical compound CC1=NC=CN1 LXBGSDVWAMZHDD-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000012860 organic pigment Substances 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 238000010298 pulverizing process Methods 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- GQHTUMJGOHRCHB-UHFFFAOYSA-N 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine Chemical compound C1CCCCN2CCCN=C21 GQHTUMJGOHRCHB-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 238000010292 electrical insulation Methods 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- QGKMIGUHVLGJBR-UHFFFAOYSA-M (4z)-1-(3-methylbutyl)-4-[[1-(3-methylbutyl)quinolin-1-ium-4-yl]methylidene]quinoline;iodide Chemical compound [I-].C12=CC=CC=C2N(CCC(C)C)C=CC1=CC1=CC=[N+](CCC(C)C)C2=CC=CC=C12 QGKMIGUHVLGJBR-UHFFFAOYSA-M 0.000 description 2
- ULKLGIFJWFIQFF-UHFFFAOYSA-N 5K8XI641G3 Chemical compound CCC1=NC=C(C)N1 ULKLGIFJWFIQFF-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- JAWMENYCRQKKJY-UHFFFAOYSA-N [3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-ylmethyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-en-8-yl]-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]methanone Chemical compound N1N=NC=2CN(CCC=21)CC1=NOC2(C1)CCN(CC2)C(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F JAWMENYCRQKKJY-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 2
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 2
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- QWVGKYWNOKOFNN-UHFFFAOYSA-N o-cresol Chemical compound CC1=CC=CC=C1O QWVGKYWNOKOFNN-UHFFFAOYSA-N 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000004848 polyfunctional curative Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011135 tin Substances 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- MUTGBJKUEZFXGO-OLQVQODUSA-N (3as,7ar)-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione Chemical compound C1CCC[C@@H]2C(=O)OC(=O)[C@@H]21 MUTGBJKUEZFXGO-OLQVQODUSA-N 0.000 description 1
- AXJZCJSXNZZMDU-UHFFFAOYSA-N (5-methyl-1h-imidazol-4-yl)methanol Chemical compound CC=1N=CNC=1CO AXJZCJSXNZZMDU-UHFFFAOYSA-N 0.000 description 1
- KGSFMPRFQVLGTJ-UHFFFAOYSA-N 1,1,2-triphenylethylbenzene Chemical compound C=1C=CC=CC=1C(C=1C=CC=CC=1)(C=1C=CC=CC=1)CC1=CC=CC=C1 KGSFMPRFQVLGTJ-UHFFFAOYSA-N 0.000 description 1
- JMTFLSQHQSFNTE-UHFFFAOYSA-N 1-dodecylimidazole Chemical compound CCCCCCCCCCCCN1C=CN=C1 JMTFLSQHQSFNTE-UHFFFAOYSA-N 0.000 description 1
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- FRPGHNBHIDMQGT-UHFFFAOYSA-N 2,5-Dimethyl-4-(1-pyrrolidinyl)-3(2H)-furanone Chemical compound O=C1C(C)OC(C)=C1N1CCCC1 FRPGHNBHIDMQGT-UHFFFAOYSA-N 0.000 description 1
- SFPKYQLUNZBNQA-UHFFFAOYSA-N 2-[4,5-bis(2-cyanoethoxymethyl)-2-phenylimidazol-1-yl]propanenitrile Chemical compound N#CC(C)N1C(COCCC#N)=C(COCCC#N)N=C1C1=CC=CC=C1 SFPKYQLUNZBNQA-UHFFFAOYSA-N 0.000 description 1
- LYNVLWLRSACENL-UHFFFAOYSA-N 2-decyl-1h-imidazole Chemical compound CCCCCCCCCCC1=NC=CN1 LYNVLWLRSACENL-UHFFFAOYSA-N 0.000 description 1
- PQAMFDRRWURCFQ-UHFFFAOYSA-N 2-ethyl-1h-imidazole Chemical compound CCC1=NC=CN1 PQAMFDRRWURCFQ-UHFFFAOYSA-N 0.000 description 1
- ABLCFODXAYBNID-UHFFFAOYSA-N 2-heptyl-1h-imidazole Chemical compound CCCCCCCC1=NC=CN1 ABLCFODXAYBNID-UHFFFAOYSA-N 0.000 description 1
- MJKISDCNSOEYEY-UHFFFAOYSA-N 2-methyl-5-[(2-phenylphenyl)methyl]-1H-imidazole Chemical compound C1(=CC=CC=C1)C1=C(CC=2N=C(NC=2)C)C=CC=C1 MJKISDCNSOEYEY-UHFFFAOYSA-N 0.000 description 1
- ZCUJYXPAKHMBAZ-UHFFFAOYSA-N 2-phenyl-1h-imidazole Chemical compound C1=CNC(C=2C=CC=CC=2)=N1 ZCUJYXPAKHMBAZ-UHFFFAOYSA-N 0.000 description 1
- LLEASVZEQBICSN-UHFFFAOYSA-N 2-undecyl-1h-imidazole Chemical compound CCCCCCCCCCCC1=NC=CN1 LLEASVZEQBICSN-UHFFFAOYSA-N 0.000 description 1
- SESYNEDUKZDRJL-UHFFFAOYSA-N 3-(2-methylimidazol-1-yl)propanenitrile Chemical compound CC1=NC=CN1CCC#N SESYNEDUKZDRJL-UHFFFAOYSA-N 0.000 description 1
- BVYPJEBKDLFIDL-UHFFFAOYSA-N 3-(2-phenylimidazol-1-yl)propanenitrile Chemical compound N#CCCN1C=CN=C1C1=CC=CC=C1 BVYPJEBKDLFIDL-UHFFFAOYSA-N 0.000 description 1
- SZUPZARBRLCVCB-UHFFFAOYSA-N 3-(2-undecylimidazol-1-yl)propanenitrile Chemical compound CCCCCCCCCCCC1=NC=CN1CCC#N SZUPZARBRLCVCB-UHFFFAOYSA-N 0.000 description 1
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical compound C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 1
- VQVIHDPBMFABCQ-UHFFFAOYSA-N 5-(1,3-dioxo-2-benzofuran-5-carbonyl)-2-benzofuran-1,3-dione Chemical compound C1=C2C(=O)OC(=O)C2=CC(C(C=2C=C3C(=O)OC(=O)C3=CC=2)=O)=C1 VQVIHDPBMFABCQ-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- JOFDPSBOUCXJCC-UHFFFAOYSA-N N-(2,4-dimethylphenyl)formamide Chemical compound CC1=CC=C(NC=O)C(C)=C1 JOFDPSBOUCXJCC-UHFFFAOYSA-N 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 235000000126 Styrax benzoin Nutrition 0.000 description 1
- 244000028419 Styrax benzoin Species 0.000 description 1
- 235000008411 Sumatra benzointree Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229960002130 benzoin Drugs 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 150000001639 boron compounds Chemical class 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 150000001868 cobalt Chemical class 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- FCEOGYWNOSBEPV-FDGPNNRMSA-N cobalt;(z)-4-hydroxypent-3-en-2-one Chemical compound [Co].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O FCEOGYWNOSBEPV-FDGPNNRMSA-N 0.000 description 1
- JUPWRUDTZGBNEX-UHFFFAOYSA-N cobalt;pentane-2,4-dione Chemical compound [Co].CC(=O)CC(C)=O.CC(=O)CC(C)=O.CC(=O)CC(C)=O JUPWRUDTZGBNEX-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 150000004696 coordination complex Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- ZKXWKVVCCTZOLD-FDGPNNRMSA-N copper;(z)-4-hydroxypent-3-en-2-one Chemical compound [Cu].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O ZKXWKVVCCTZOLD-FDGPNNRMSA-N 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000007580 dry-mixing Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 235000019382 gum benzoic Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- AQBLLJNPHDIAPN-LNTINUHCSA-K iron(3+);(z)-4-oxopent-2-en-2-olate Chemical compound [Fe+3].C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O AQBLLJNPHDIAPN-LNTINUHCSA-K 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 150000002696 manganese Chemical class 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- ZQZQURFYFJBOCE-FDGPNNRMSA-L manganese(2+);(z)-4-oxopent-2-en-2-olate Chemical compound [Mn+2].C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O ZQZQURFYFJBOCE-FDGPNNRMSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- GEMHFKXPOCTAIP-UHFFFAOYSA-N n,n-dimethyl-n'-phenylcarbamimidoyl chloride Chemical compound CN(C)C(Cl)=NC1=CC=CC=C1 GEMHFKXPOCTAIP-UHFFFAOYSA-N 0.000 description 1
- VSWALKINGSNVAR-UHFFFAOYSA-N naphthalen-1-ol;phenol Chemical compound OC1=CC=CC=C1.C1=CC=C2C(O)=CC=CC2=C1 VSWALKINGSNVAR-UHFFFAOYSA-N 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- BMGNSKKZFQMGDH-FDGPNNRMSA-L nickel(2+);(z)-4-oxopent-2-en-2-olate Chemical compound [Ni+2].C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O BMGNSKKZFQMGDH-FDGPNNRMSA-L 0.000 description 1
- CYCFYXLDTSNTGP-UHFFFAOYSA-L octadecanoate;tin(2+) Chemical compound [Sn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CYCFYXLDTSNTGP-UHFFFAOYSA-L 0.000 description 1
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 1
- 150000002903 organophosphorus compounds Chemical class 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- PRCNQQRRDGMPKS-UHFFFAOYSA-N pentane-2,4-dione;zinc Chemical compound [Zn].CC(=O)CC(C)=O.CC(=O)CC(C)=O PRCNQQRRDGMPKS-UHFFFAOYSA-N 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- WSFQLUVWDKCYSW-UHFFFAOYSA-M sodium;2-hydroxy-3-morpholin-4-ylpropane-1-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)CC(O)CN1CCOCC1 WSFQLUVWDKCYSW-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 description 1
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
- CHJMFFKHPHCQIJ-UHFFFAOYSA-L zinc;octanoate Chemical compound [Zn+2].CCCCCCCC([O-])=O.CCCCCCCC([O-])=O CHJMFFKHPHCQIJ-UHFFFAOYSA-L 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/02—Emulsion paints including aerosols
- C09D5/024—Emulsion paints including aerosols characterised by the additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
본 발명은 고당량 에폭시 수지와 저당량 에폭시 수지를 포함하는 분체도료에 관한 것으로 구동모터에 도장시 장기간 우수한 내열성 및 내구성을 발휘할 수 있다.The present invention relates to a powder coating material comprising a high-equivalent epoxy resin and a low-equivalent epoxy resin, and can exhibit excellent heat resistance and durability for a long period of time in coating on a driving motor.
Description
본 발명은 장기 내열성 및 내구성이 우수한 분체도료 조성물에 관한 것이다. The present invention relates to a powder coating composition excellent in long-term heat resistance and durability.
분체도료는 용제나 물 등의 희석제를 포함하지 않는 100% 고형분 도료이다. 이들은 피도체(주로 금속 표면) 상에 도장하여 가열하면 용해되어 경화반응을 통해 도막을 형성하는 것으로, 휘발성분 없이 가루로 되어 있는 것이 특징이다. 또한 무공해 도료로서 최근 각광받고 있는 도료 중 하나이다. Powder coatings are 100% solids coatings that do not contain solvents or diluents such as water. They are coated on a conductor (mainly a metal surface) and dissolve when heated to form a coating film through a curing reaction, which is characterized by being powdered without volatile components. In addition, it is one of the recently popular paints as pollution-free paints.
전술한 분체도료는 모터 도장용 도료로 적용될 수 있다. 일례로, 대한민국 특허 공개 1993-0019785호에서는 비스페놀 A형 에폭시 수지 및 디시안디아마이드 경화제를 적용한 전기절연용 열경화성 분체도료를 개시하고 있다. 상기 분체도료를 모터 도장용 도료에 적용할 경우 전기적 특성은 만족스러운 반면, 장시간 모터를 구동할 경우 내열성 및 내구성이 열세한 문제점이 있었다. The powder coating material described above can be applied as a coating material for motor coating. For example, Korean Patent Laid-Open Publication No. 1993-0019785 discloses a thermosetting powder coating material for electrical insulation using a bisphenol A type epoxy resin and a dicyandiamide curing agent. When the powder coating material is applied to a paint for motor coating, electrical characteristics are satisfactory, but heat resistance and durability are poor when a motor is driven for a long time.
또한, 일본 공개특허 특개 2008-056838호에서는 내열성 및 부착성 향상을 위해 산무수물 경화제와 실란커플링제를 적용한 에폭시 수지 분체도료를 개시하고 있으나, 고온 내습 환경에서는 충격성과 부착성이 열세한 문제점이 있었다.Japanese Unexamined Patent Application Publication No. 2008-056838 discloses an epoxy resin powder coating material in which an acid anhydride curing agent and a silane coupling agent are applied to improve heat resistance and adhesion, but has a problem in that impact resistance and adhesion are poor in a high temperature and humidity environment .
본 발명은 고당량의 에폭시 수지와 저당량의 에폭시 수지를 포함하는 분체도료를 적용하여, 구동용 모터와 같이 장시간 연속적으로 사용되는 모터 도장에 적용시, 전기적 절연특성, 내열성과 내구성을 개선할 수 있는 분체도료 조성물을 제공한다. The present invention applies a powder coating material containing a high equivalent amount of an epoxy resin and a low equivalent amount of an epoxy resin to improve electrical insulation characteristics, heat resistance and durability when applied to a motor coating used continuously for a long time, such as a driving motor ≪ / RTI >
본 발명은 전체 조성물 100 중량부를 기준으로 하여, 에폭시 당량이 700 내지 1,300 g/eq인 제1 에폭시 수지 30 내지 50 중량부, 에폭시 당량이 140 내지 270 g/eq인 제2 에폭시 수지 3 내지 10 중량부, 산무수물 경화제 1 내지 15 중량부, 및 안료 0.1 내지 65 중량부를 포함하는 분체도료 조성물을 제공한다. The present invention relates to an epoxy resin composition comprising 30 to 50 parts by weight of a first epoxy resin having an epoxy equivalent of 700 to 1,300 g / eq, 3 to 10 parts by weight of a second epoxy resin having an epoxy equivalent of 140 to 270 g / 1 to 15 parts by weight of an acid anhydride curing agent, and 0.1 to 65 parts by weight of a pigment.
본 발명에서는 에폭시 당량이 상이한 에폭시 수지를 2종 이상 혼용함에 따라 분체도료의 유리전이온도(Tg)를 상승시켜, 도료 적용시 내열성 및 내구성을 확보할 수 있다. 이에 따라, 상기 분체도료 조성물을 구동용 모터 도장에 적용할 경우, 장시간 안정적인 수명을 나타낼 수 있다.In the present invention, by mixing two or more kinds of epoxy resins having different epoxy equivalents, it is possible to increase the glass transition temperature (Tg) of the powder coating material and ensure heat resistance and durability when applying the coating material. Accordingly, when the powder coating composition is applied to a motor coating for driving, it can exhibit a long service life for a long time.
이하, 본 발명에 대하여 상세히 설명한다. 그러나 하기 내용에 의해서만 한정되는 것은 아니며, 필요에 따라 각 구성요소가 다양하게 변형되거나 또는 선택적으로 혼용될 수 있다. Hereinafter, the present invention will be described in detail. However, it should be understood that the present invention is not limited to the following embodiments, and that various elements may be variously modified or selectively mixed according to need.
본 발명은 장시간 연속적으로 사용되는 구동용 모터의 도장에 적용될 수 있는 분체도료 조성물로서, 전기적 절연특성을 발휘함과 동시에 유리전이온도(Tg) 상승을 통해 내열성과 내구성을 개선하고자 한다. The present invention relates to a powder coating composition that can be applied to a driving motor used continuously for a long period of time. The powder coating composition exhibits electrical insulation characteristics and is improved in heat resistance and durability by increasing the glass transition temperature (Tg).
이를 위해, 본 발명에서는 1종의 고당량 에폭시 수지와 1종의 저당량 에폭시 수지를 주(主) 수지 성분으로 적용하고, 여기에 산무수물 경화제를 혼용하며, 도료 적용시 분체의 평균 입도가 60 내지 120 ㎛로 조절된 분체도료 조성물을 제공한다.For this purpose, in the present invention, one kind of high-equivalent epoxy resin and one kind of low-equivalent epoxy resin are used as main resin components, and an acid anhydride curing agent is mixed therewith. When the average particle size of the powder is 60 To 120 [micro] m.
상기 분체도료 조성물은 고당량 에폭시 수지, 저당량 에폭시 수지, 경화제, 및 안료를 특정 함량범위로 포함하며, 필요에 따라 기타 첨가제를 더 함유할 수 있다. The powder coating composition contains a high-equivalent epoxy resin, a low-equivalent epoxy resin, a curing agent, and a pigment in a specific amount range, and may further contain other additives as required.
이하, 상기 분체도료 조성물의 조성을 구체적으로 살펴보면 다음과 같다. Hereinafter, the composition of the powder coating composition will be specifically described.
<에폭시 수지>≪ Epoxy resin &
본 발명에서는 분체도료 조성물의 내구성 및 내열성을 향상시키기 위해서, 에폭시 당량(epoxy equivalent weight, EEW)이 상이한 2종 이상의 에폭시 수지를 혼용한다. In the present invention, two or more epoxy resins differing in epoxy equivalent weight (EEW) are mixed to improve the durability and heat resistance of the powder coating composition.
이와 같이, 고당량 에폭시 수지 및 저당량 에폭시 수지를 혼합 사용할 경우 경화반응 이후 형성된 도막의 가교도를 최적화할 수 있다. 상기와 같이 당량이 상이한 에폭시 수지를 혼용하면, 저당량 에폭시 수지는 낮은 용융점도 및 접착에 있어서 양호한 습윤성을 가지며, 고당량 에폭시 수지는 그 자체로 가소성을 가져 굽힘 가공성 등의 성형 특성을 보다 더 향상시킬 수 있다. 따라서 본 발명에서와 같이 중합도(n) 또는 당량차가 있는 에폭시 수지를 혼용하는 경우, 높은 접착성, 탁월한 내습 신뢰도, 성형성 등을 나타낼 수 있다.Thus, when the high equivalent epoxy resin and the low equivalent epoxy resin are mixed, the degree of crosslinking of the coating film formed after the curing reaction can be optimized. When such an epoxy resin having a different equivalent is mixed as described above, the low equivalent epoxy resin has a low melt viscosity and good wettability in adhesion, and the high equivalent epoxy resin has plasticity per se, thereby further improving the molding properties such as bending workability . Therefore, when an epoxy resin having a degree of polymerization (n) or an equivalent amount is mixed as in the present invention, high adhesion, excellent moisture resistance and moldability can be exhibited.
또한 본 발명에서는 고당량 에폭시 수지와 저당량 에폭시 수지를 혼용시, 고당량 에폭시 수지의 함량을 저당량 에폭시 수지보다 더 높게 조절함에 따라 저분자량 물질인 올리고머의 함량이 상대적으로 감소하여 유리전이온도(Tg) 특성이 향상되는데, 이는 내열성, 내구성 및 신뢰성 향상에 기여한다. 따라서 본 발명의 분체도료 조성물을 구동모터의 도장에 적용시, 우수한 밀착성을 나타냄과 동시에 장시간 내열성 및 내구성을 개선할 수 있다. Further, in the present invention, when the high equivalent epoxy resin and the low equivalent epoxy resin are mixed, the content of the oligomer as a low molecular weight material is relatively decreased as the content of the high equivalent epoxy resin is adjusted higher than that of the low equivalent epoxy resin, Tg) properties are improved, which contributes to improvement of heat resistance, durability and reliability. Therefore, when the powder coating composition of the present invention is applied to the coating of a driving motor, excellent adhesion can be exhibited, and heat resistance and durability can be improved for a long time.
본 발명에서는 에폭시 수지로서, 에폭시 당량이 700 내지 1,300 g/eq인 고당량 제1 에폭시 수지와 에폭시 당량이 140 내지 270 g/eq인 저당량 제2 에폭시 수지를 혼합하여 사용한다. 또는 에폭시 당량이 900 내지 1,000 g/eq인 고당량 제1 에폭시 수지와 에폭시 당량이 190 내지 220 g/eq인 저당량 제2 에폭시 수지를 각각 2종 이상 혼용할 수 있다. In the present invention, a high-equivalent first epoxy resin having an epoxy equivalent of 700 to 1,300 g / eq and a low-equivalent second epoxy resin having an epoxy equivalent of 140 to 270 g / eq are mixed and used as the epoxy resin. Or a high equivalent weight first epoxy resin having an epoxy equivalent of 900 to 1,000 g / eq and a low equivalent weight second epoxy resin having an epoxy equivalent of 190 to 220 g / eq, respectively.
상기 고당량 제1 에폭시 수지의 당량이 700 내지 1,300 g/eq일 경우 코팅 특성이 우수하며, 도장 후 충격 흡수력이 우수하여 도막의 신뢰성을 높일 수 있다. 상기 제1 에폭시 수지의 에폭시 당량이 전술한 범위를 벗어날 경우 딱딱해져서 충격 발생시 크랙이 발생하거나 내화학 특성이 저하될 수 있다. When the equivalence of the high-equivalent first epoxy resin is 700 to 1,300 g / eq, the coating property is excellent and the shock absorbing ability after painting is excellent, so that the reliability of the coating film can be improved. When the epoxy equivalent of the first epoxy resin is out of the above range, the epoxy resin becomes hard and cracks or chemical resistance may be deteriorated when an impact is generated.
상기 저당량 제2 에폭시 수지의 당량이 140 내지 270 g/eq일 경우 수지 유동 특성이 좋고, 성형이나 도장시 충진성을 안정화할 수 있다. 상기 제2 에폭시 수지의 에폭시 당량이 전술한 범위를 벗어날 경우 내열 특성이 저하될 수 있고, 또한 기재(substrate)인 구동 모터와의 접착력이 저하될 수 있다. When the equivalence of the low-equivalent second epoxy resin is 140 to 270 g / eq, the resin flow property is good and the filling property in molding or painting can be stabilized. If the epoxy equivalent of the second epoxy resin is out of the above range, the heat resistance may be deteriorated and the adhesive force with the driving motor as a substrate may be lowered.
본 발명에서, 제1 에폭시 수지와 제2 에폭시 수지는 당 분야에 알려진 통상적인 에폭시 수지를 사용할 수 있으며, 이에 특별히 한정되지 않는다. In the present invention, the first epoxy resin and the second epoxy resin may be conventional epoxy resins known in the art, and are not particularly limited thereto.
사용 가능한 제1 및 제2 에폭시 수지의 비제한적인 예로는 비스페놀 A형 에폭시 수지, 크레졸 노볼락형 에폭시 수지, 비스페놀 F형 에폭시 수지, 비스페놀 S형 에폭시 수지, 나프탈렌형 에폭시 수지, 안트라센 에폭시 수지, 비페닐형 에폭시 수지, 테트라메틸 비페닐형 에폭시 수지, 페놀 노볼락형 에폭시 수지, 비스페놀 A 노볼락형 에폭시 수지, 비스페놀 S 노볼락형 에폭시 수지, 비페닐 노블락형 에폭시 수지, 나프톨 노볼락형 에폭시 수지, 나프톨 페놀 공축 노볼락형 에폭시 수지, 나프톨 코레졸 공축 노볼락형 에폭시 수지, 방향족 탄화수소 포름알데히드 수지 변형 페놀 수지형 에폭시 수지, 트리페닐 메탄형 에폭시 수지, 테트라 페닐에탄형 에폭시 수지, 디시클로펜타디엔 페놀 부가반응형 에폭시 수지, 페놀 아랄킬형 에폭시 수지 또는 이들의 혼합형태 등이 있다. Nonlimiting examples of the first and second epoxy resins that can be used include bisphenol A type epoxy resin, cresol novolak type epoxy resin, bisphenol F type epoxy resin, bisphenol S type epoxy resin, naphthalene type epoxy resin, anthracene epoxy resin, Bisphenol A novolak type epoxy resin, biphenyl novolak type epoxy resin, naphthol novolak type epoxy resin, naphthol novolak type epoxy resin, naphthol novolak type epoxy resin, Naphthol phenol co-novolak type epoxy resin, naphthol cholizole co-novolak type epoxy resin, aromatic hydrocarbon formaldehyde resin modified phenol resin type epoxy resin, triphenyl methane type epoxy resin, tetraphenyl ethane type epoxy resin, dicyclopentadiene phenol Addition reaction type epoxy resin, phenol aralkyl type epoxy resin or a mixture thereof And the like.
본 발명의 일 구현예에 따르면, 상기 제1 에폭시 수지는 에폭시 당량(EEW)이 700 내지 1,300 g/eq인 비스페놀 A형 에폭시 수지이며, 제2 에폭시 수지는 에폭시 당량(EEW)이 140 내지 270 g/eq인 O-크레졸 노볼락 에폭시 수지일 수 있다.According to an embodiment of the present invention, the first epoxy resin is a bisphenol A type epoxy resin having an epoxy equivalent weight (EEW) of 700 to 1,300 g / eq, and the second epoxy resin has an epoxy equivalent weight (EEW) / eq. < / RTI >
본 발명에 있어서, 상기 제1 에폭시 수지와 제2 에폭시 수지의 사용 비율은 50-90 : 10-50 중량 비율일 수 있으며, 예를 들어 70-90 : 10-30 범위일 수 있다.In the present invention, the ratio of the first epoxy resin to the second epoxy resin may be 50-90: 10-50, for example, 70-90: 10-30.
본 발명에서, 고당량 제1 에폭시 수지의 함량은 당해 분체도료 조성물의 총 중량(100 중량부)을 기준으로 하여 30 내지 50 중량부일 수 있다. 또한 저당량 제2 에폭시 수지의 함량은 당해 분체도료 조성물의 총 중량을 기준으로 하여 3 내지 10 중량부일 수 있다. 고당량 제1 에폭시 수지와 저당량 제2 에폭시 수지가 전술한 함량 범위에 해당될 경우, 분체도료의 유리전이온도(Tg) 상승 및 내구성, 내열성을 개선할 수 있다. In the present invention, the content of the high-equivalent first epoxy resin may be 30 to 50 parts by weight based on the total weight (100 parts by weight) of the powder coating composition. The content of the low-equivalent second epoxy resin may be 3 to 10 parts by weight based on the total weight of the powder coating composition. When the high-equivalent first epoxy resin and the low-equivalent second epoxy resin fall within the above-described range, the glass transition temperature (Tg) rise and durability and heat resistance of the powder coating material can be improved.
<경화제><Curing agent>
본 발명의 분체도료 조성물에서, 경화제로는 에폭시 수지와 경화반응이 진행될 수 있는 당 업계의 통상적인 산무수물(acid anhydride)계 경화제를 사용할 수 있다. In the powder coating composition of the present invention, as the curing agent, a conventional acid anhydride-based curing agent capable of undergoing a curing reaction with an epoxy resin can be used.
사용 가능한 산무수물계 경화제의 비제한적인 예로는, 무수프탈산 무수물, 트리멜리틱산 무수물, 피로멜리트산 무수물, 헥사히드로무수 프탈산, 벤조페논 테트라 카르복실란산 무수물 등이 있다. 이들을 단독으로 사용하거나 또는 2종 이상 혼용할 수 있다. 그 외, 페놀계 경화제 등을 사용할 수도 있다. Non-limiting examples of the acid anhydride-based curing agent that can be used include anhydrous phthalic anhydride, trimellitic acid anhydride, pyromellitic anhydride, hexahydrophthalic anhydride, and benzophenone tetracarboxylic acid anhydride. These may be used alone or in combination of two or more. In addition, a phenol-based curing agent may be used.
상기 경화제의 함량은 에폭시 수지의 함량에 따라 적절하게 조절될 수 있다. 예를 들어, 상기 경화제의 함량은 당해 분체도료 조성물의 총 중량을 기준으로 하여 1 내지 15 중량부일 수 있다. 상기 경화제의 함량이 전술한 범위에 해당되는 경우, 분체도료의 강도 및 내열성이 양호하게 발휘되며, 유동성으로 인해 성형성이 우수하게 발휘될 수 있다. The content of the curing agent may be appropriately controlled depending on the content of the epoxy resin. For example, the content of the curing agent may be 1 to 15 parts by weight based on the total weight of the powder coating composition. When the content of the curing agent falls within the above-mentioned range, the strength and heat resistance of the powder coating can be excellently exerted and the moldability can be exerted due to the fluidity.
<안료><Pigment>
본 발명의 분체도료 조성물에서, 안료는 분체도료에 통상적으로 사용되는 유기안료, 무기안료 등을 제한 없이 사용할 수 있으며, 이들을 단독 또는 2종 이상 혼용할 수 있다.In the powder coating composition of the present invention, the pigment may be an organic pigment, an inorganic pigment or the like conventionally used in powder coating, without limitation, and these may be used singly or in combination of two or more kinds.
상기 유기안료는 에폭시 수지와 혼합하여 분체도료에 원하는 색상(유색)을 발현하는 목적으로 포함된다. 상기 유기안료는 티타늄 디옥사이드, 비스무스 바나데이트, 시아닌 그린, 카본 블랙, 산화철적, 산화철황, 네이비 블루, 시아닌 블루로 이루어진 군에서 선택되는 1종 또는 2종 이상의 혼합물을 사용할 수 있다.The organic pigment is mixed with an epoxy resin for the purpose of expressing a desired color (colored) in the powder coating material. The organic pigment may be one or a mixture of two or more selected from the group consisting of titanium dioxide, bismuth vanadate, cyanine green, carbon black, iron oxide red, iron oxide yellow, navy blue and cyanine blue.
본 발명에서, 상기 유기안료의 함량은 당해 분체도료 조성물의 총 중량을 기준으로 하여 0.1 내지 10 중량부일 수 있으며, 예를 들어 1 내지 5 중량부일 수 있다. 상기 안료의 함량이 전술한 범위를 벗어날 경우, 본 발명의 분체도료 조성물을 적용한 도막의 은폐력이 충분히 확보되지 않거나 색상 표현이 미미할 수 있다. In the present invention, the content of the organic pigment may be 0.1 to 10 parts by weight, for example, 1 to 5 parts by weight, based on the total weight of the powder coating composition. When the content of the pigment is out of the above range, the hiding power of the coating film to which the powder coating composition of the present invention is applied may not be sufficiently secured or the color representation may be insignificant.
상기 무기안료는 당 분야에서 분체도료에 적용 가능한 것으로 알려진 무기안료를 제한 없이 사용할 수 있다. 사용 가능한 무기안료의 비제한적인 예로는, 탄산칼슘, 장석, 바륨설페이트, 실리카, 수산화알루미나, 수산화마그네슘, 티타늄다이옥사이드, 탄산마그네슘, 알루미나, 운모, 올라스토나이트, 탈크, 질화알루미늄, 질화규소, 질화붕소, 산화알루미늄, 질화알루미늄, 바륨설페이트 등이 있다. 이들을 단독으로 사용하거나 또는 2종 이상 혼용할 수 있다. The above-mentioned inorganic pigments can be used without limitation, inorganic pigments known in the art as applicable to powder paints. Non-limiting examples of usable inorganic pigments include calcium carbonate, feldspar, barium sulfate, silica, alumina hydroxide, magnesium hydroxide, titanium dioxide, magnesium carbonate, alumina, mica, olastonite, talc, aluminum nitride, , Aluminum oxide, aluminum nitride, barium sulfate, and the like. These may be used alone or in combination of two or more.
상기 무기안료의 평균 입경은 특별히 제한되지 않으며, 일례로 1 내지 20 ㎛일 수 있다. 또한 상기 무기안료의 형상은 구형 또는 무정형일 수 있으며, 이에 특별히 한정되지 않는다. The average particle diameter of the inorganic pigment is not particularly limited, and may be, for example, 1 to 20 占 퐉. The shape of the inorganic pigment may be spherical or amorphous, and is not particularly limited.
본 발명의 일 예에 따르면, 상기 무기안료는 평균 입경이 1 내지 20 ㎛인 탄산칼슘일 수 있다. According to an embodiment of the present invention, the inorganic pigment may be calcium carbonate having an average particle diameter of 1 to 20 mu m.
상기 무기안료의 함량은 당해 분체도료 조성물의 총 중량을 기준으로 하여 20 내지 55 중량부일 수 있으며, 예를 들어 30 내지 50 중량부일 수 있다. 무기안료의 함량이 전술한 범위를 벗어날 경우 내충격성 및 부착성이 현저히 저하되거나, 또는 유리전이온도(Tg)가 낮아질 수 있다. The content of the inorganic pigment may be 20 to 55 parts by weight, for example, 30 to 50 parts by weight, based on the total weight of the powder coating composition. When the content of the inorganic pigment is out of the above-mentioned range, the impact resistance and adhesion property may be remarkably lowered or the glass transition temperature (Tg) may be lowered.
<첨가제><Additives>
본 발명의 분체도료 조성물은, 상기 조성물의 고유 특성을 해하지 않는 범위 내에서, 당 업계에 알려진 통상적인 첨가제를 선택적으로 더 포함할 수 있다.The powder coating composition of the present invention may optionally further include conventional additives known in the art within the range not detracting from the inherent characteristics of the composition.
본 발명에서 사용 가능한 첨가제로는 경화촉진제, 분산제, 웨팅제, 광택조절제, 접착력 개선제, 난연제, 핀홀방지제, 레벨링제, 크래터링 방지제, 커플링제, 유동성 향상제 또는 이들의 2종 이상 혼합물 등이 있다. 상기 첨가제의 함량은 당 기술분야에 공지된 함량 범위 내에서 적절히 첨가될 수 있다. Examples of the additive that can be used in the present invention include a curing accelerator, a dispersant, a wetting agent, a gloss control agent, an adhesion improver, a flame retardant, a pinhole inhibitor, a leveling agent, a anti-cratering agent, a coupling agent, a flowability improver or a mixture of two or more thereof. The content of the additive may be suitably added within the range of contents known in the art.
상기 경화촉진제는 당 분야에 알려진 통상적인 성분을 제한 없이 사용할 수 있다. The curing accelerator may be used without limitation in the conventional components known in the art.
상기 경화촉진제는 에폭시 수지와 경화제와의 반응을 촉진하는 물질로서, 예를 들면 이미다졸류, 이미다졸 변성에폭시, 디비유(1,8-Diazabicyclo[5.4.0]undec-7-ene), 디비유염(1,8-Diazabicyclo[5.4.0]undec-7-ene salt), 트리페닐포스핀, 금속 킬레이트 경화촉진제 등이 있다. The curing accelerator is a substance which promotes the reaction between the epoxy resin and the curing agent. Examples of the curing accelerator include imidazoles, imidazole-modified epoxies, 1,8-diazabicyclo [5.4.0] undec-7-ene, (1,8-diazabicyclo [5.4.0] undec-7-ene salt), triphenylphosphine, metal chelate curing accelerator, and the like.
사용 가능한 이미다졸계 경화촉진제의 비제한적인 예를 들면, 이미다졸, 2-메틸이미다졸, 2-에틸이미다졸, 2-데실이미다졸, 2-헥틸이미다졸, 2-이소프로필이미다졸, 2-운데실이미다졸, 2-헵탄데실이미다졸, 2-에틸-4-메틸이미다졸, 2-페닐이미다졸, 2-페닐-4-메틸이미다졸, 1-벤질-2-메틸이미다졸, 1-벤질-2-페닐이미다졸, 1-시아노에틸-2-메틸이미다졸, 1-시아노에틸-2-에틸-4-메틸이미다졸, 1-시아노에틸-2-운데실이미다졸, 1-시아노에틸-2-페닐이미다졸, 1-시아노에틸-2-운데실-이미다졸 트리멜리테이트, 1-시아노에틸-2-페닐이미다졸 트리멜리테이트, 2,4-디아미노-6-(2'-메틸이미다졸-(1')-에틸-s-트리아진, 2-페실-4,5-디하이드록시메틸이미다졸, 2-페실-4-메틸-5-하이드록시메틸이미다졸, 2-페실-4-벤질-5-하이드록시메틸이미다졸, 4,4'-메틸렌-비스-(2-에틸-5-메틸이미다졸), 2-아미노에틸-2-메틸이미다졸, 1-시아노에틸-2-페닐-4,5-디(시아노에톡시메틸)이미다졸, 1-도데실-2-메틸-3-벤질이미다졸리늄클로라이드, 이미다졸 함유 폴리아미드, 또는 이들의 혼합물 등이 있다. 그 외, 제 3급 아민, 유기금속화합물, 유기인화합물, 붕소화합물 등을 추가로 사용할 수 있다.Nonlimiting examples of imidazole-based curing accelerators that can be used are imidazole, 2-methylimidazole, 2-ethylimidazole, 2-decylimidazole, 2-heptylimidazole, 2- Imidazole, 2-undecylimidazole, 2-heptanedicylimidazole, 2-ethyl-4-methylimidazole, 2-phenylimidazole, 2-phenyl- Benzyl-2-methylimidazole, 1-cyanoethyl-2-methylimidazole, 1-cyanoethyl-2-ethyl- , 1-cyanoethyl-2-undecylimidazole, 1-cyanoethyl-2-phenylimidazole, 1-cyanoethyl-2-undecyl-trimellitate, 1- Phenylimidazole trimellitate, 2,4-diamino-6- (2'-methylimidazole- (1 ') - ethyl-s-triazine, 4-methyl-5-hydroxymethylimidazole, 2-pheyl-4-benzyl-5-hydroxymethylimidazole, 4,4'- (2-ethyl-5-methylimidazole), 2-methylimidazole, 1-cyanoethyl-2-phenyl-4,5-di (cyanoethoxymethyl) imidazole, 1-dodecyl- Imidazole-containing polyamides, mixtures thereof, etc. In addition, tertiary amines, organic metal compounds, organic phosphorus compounds, boron compounds, and the like can be further used.
금속계 경화촉진제로는 코발트, 구리, 아연, 철, 니켈, 망간, 주석 등의 유기 금속 착체 또는 유기 금속염을 들 수 있다. 상기 유기 금속 착체의 예로는, 코발트(Ⅱ) 아세틸아세토네이트, 코발트(Ⅲ) 아세틸아세토네이트 등의 유기 코발트 착체, 구리(Ⅱ) 아세틸아세토네이트 등의 유기 구리 착체, 아연(Ⅱ) 아세틸아세토네이트 등의 유기 아연 착체, 철(Ⅲ) 아세틸아세토네이트 등의 유기 철 착체, 니켈(Ⅱ) 아세틸아세토네이트 등의 유기 니켈 착체, 망간(Ⅱ) 아세틸아세토네이트 등의 유기 망간 착체 등을 들 수 있는데, 이에 한정되지는 않는다. 상기 유기 금속염의 예로는, 옥틸산아연, 옥틸산주석, 나프텐산아연, 나프텐산코발트, 스테아르산주석, 스테아르산아연 등을 들 수 있는데, 이에 한정되지는 않는다. 상기와 같은 금속계 경화 촉진제는 1종 또는 2종 이상을 조합하여 사용할 수 있다.Examples of the metal-based curing accelerator include organic metal complexes such as cobalt, copper, zinc, iron, nickel, manganese and tin, and organic metal salts. Examples of the organic metal complex include organic cobalt complexes such as cobalt (II) acetylacetonate and cobalt (III) acetylacetonate, organic copper complexes such as copper (II) acetylacetonate, zinc (II) acetylacetonate Organic iron complexes such as iron (III) acetylacetonate, organic nickel complexes such as nickel (II) acetylacetonate and organic manganese complexes such as manganese (II) acetylacetonate. But is not limited to. Examples of the organic metal salt include, but are not limited to, zinc octylate, tin octylate, zinc naphthenate, cobalt naphthenate, stannous stearate, and zinc stearate. The metal-based curing accelerator may be used alone or in combination of two or more.
본 발명에서, 상기 경화촉진제의 함량은 에폭시 수지나 경화제의 반응성에 따라 적절히 조절될 수 있다. 일례로, 상기 경화촉진제의 함량은 당해 분체도료 조성물의 총 중량을 기준으로 하여 0.01 내지 5 중량부일 수 있으며, 예를 들어 0.015 내지 2 중량부일 수 있다. 상기 경화촉진제의 함량이 전술한 범위일 경우, 분체도료 조성물의 경화에 소요되는 시간이 단축될 수 있다.In the present invention, the content of the curing accelerator may be appropriately controlled depending on the reactivity of the epoxy resin or the curing agent. For example, the content of the curing accelerator may be 0.01 to 5 parts by weight, for example, 0.015 to 2 parts by weight based on the total weight of the powder coating composition. When the content of the curing accelerator is in the range described above, the time required for curing the powder coating composition can be shortened.
본 발명의 일 구현예에 따르면, 상술한 본 발명의 분체도료 조성물은, 도료를 이루는 분체의 평균 입도가 60 내지 120 ㎛일 수 있다. 또한 상기 분체도료 조성물의 유리전이온도(Tg)는 140℃ 이상일 수 있으며, 예를 들어 140 내지 150℃일 수 있다. 전술한 분체의 평균 입도와 유리전이온도(Tg)를 만족시킬 경우, 장시간 내구성 및 내열성을 지속적으로 유지할 수 있다. According to an embodiment of the present invention, the powder coating composition of the present invention may have an average particle size of 60 to 120 탆. The glass transition temperature (Tg) of the powder coating composition may be 140 ° C or higher, for example, 140-150 ° C. When the average particle size of the powder and the glass transition temperature (Tg) are satisfied, long-term durability and heat resistance can be continuously maintained.
본 발명에 따른 모터 구동용 분체도료 조성물은 하기와 같은 방법에 의해 제조될 수 있으나, 이에 특별히 한정되는 것은 아니다. The motor-driven powder coating composition according to the present invention can be produced by the following method, but is not particularly limited thereto.
상기 제조방법의 일 실시예를 들면, 고당량 제1 에폭시 수지, 저당량 제2 에폭시 수지, 경화제, 경화촉진제, 안료를 함유하는 원재료 혼합물을 컨테이너 믹서를 이용하여 배합하고 균일하게 혼합하는 제1단계; 및 상기 혼합된 조성물을 용융 혼합시킨 후 이를 분쇄하는 제2단계를 포함하여 구성될 수 있다.In one embodiment of the above production method, a raw material mixture containing a high-equivalent first epoxy resin, a low-equivalent second epoxy resin, a curing agent, a curing accelerator, and a pigment is mixed using a container mixer and uniformly mixed ; And a second step of melt-mixing the mixed composition and pulverizing it.
본 발명에서, 상기 원재료 혼합물을 용융 혼합한 후 분쇄하는 제2단계를 구체적으로 설명하면, 상기 원재료 혼합물을 니이더(kneader) 또는 익스트루더(extruder) 등의 용융 혼련 장치에 의해 80-120℃로 용융 혼합하고, 냉각 후 해머밀 등으로 조쇄한다. 이후 분쇄장치를 이용해 평균입도 60 내지 120 ㎛ 범위로 분쇄한 후 분급하여 분체도료 조성물을 제조할 수 있다.In the present invention, the second step of melt-mixing and pulverizing the raw material mixture will be described in detail. The raw material mixture is melt-kneaded by a kneader or an extruder at 80-120 ° C , Cooled, and then crushed with a hammer mill or the like. And then pulverized to an average particle size of 60 to 120 mu m using a pulverizing apparatus and classified to prepare a powder coating composition.
본 발명에서는, 분체도료의 유동성 향상을 위해 실리카 등의 미분말로 분체 도료 입자의 표면을 피복할 수도 있다. 이러한 처리를 하는 방법으로서는 분쇄 시에 미분말을 첨가하면서 혼합하는 분쇄 혼합법이나 헨셸 믹서 등에 의한 건식 혼합법을 이용할 수 있다.In the present invention, the surface of the powder coating material particles may be coated with a fine powder such as silica for improving the fluidity of the powder coating material. As a method for carrying out such a treatment, a pulverization mixing method in which a fine powder is added while being pulverized, or a dry mixing method using a Henschel mixer or the like can be used.
전술한 바와 같이 구성되는 본 발명의 분체도료 조성물은, 높은 유리전이온도(Tg)로 인해 장시간 구동하는 다양한 종류의 모터를 도장하는 용도로 적용될 수 있다. 그러나, 이에 특별히 제한되지 않고, 다양한 공정 단계 및 용도에 적용 가능하다. The powder coating composition of the present invention constituted as described above can be applied to the application of various kinds of motors which are driven for a long time due to a high glass transition temperature (Tg). However, the present invention is not particularly limited thereto and can be applied to various process steps and applications.
이하, 실시예를 통하여 본 발명을 보다 구체적으로 설명한다. 그러나 하기 실시예는 본 발명의 이해를 돕기 위한 것일 뿐 어떠한 의미로든 본 발명의 범위가 실시예로 한정되는 것은 아니다.Hereinafter, the present invention will be described more specifically by way of examples. However, the following examples are intended to assist the understanding of the present invention, and the scope of the present invention is not limited to the examples in any sense.
[[ 실시예Example 1-8] 1-8]
하기 표 1에 기재된 조성에 따라 에폭시 수지, 경화제, 안료, 첨가제 등을 사용하여 실시예 1-8의 분체도료 조성물을 제조하였다. 하기 표 1에서 각 조성물의 사용량 단위는 중량부이다. Powder coating compositions of Examples 1-8 were prepared using epoxy resin, curing agent, pigment, additives and the like according to the composition shown in Table 1 below. In Table 1, the unit of usage of each composition is parts by weight.
[[ 비교예Comparative Example 1-3] 1-3]
하기 표 1에 기재된 조성에 따라 에폭시 수지, 경화제, 안료, 첨가제 등을 사용하여 비교예 1-3의 분체도료 조성물을 각각 제조하였다.Each of the powder coating compositions of Comparative Examples 1-3 was prepared using an epoxy resin, a curing agent, a pigment, and an additive according to the composition shown in Table 1 below.
90
80
110
100
70
60
80
40
80
80
80
에폭시수지 1: 비스페놀 A형 수지, 에폭시 당량 900-1000 (KCC社)Epoxy resin 1: Bisphenol A type resin, epoxy equivalent 900-1000 (KCC)
에폭시수지 2: o-크레졸 노블락 에폭시 수지(YDCN 500-90P), 에폭시 당량 190-220 (국도화학社) Epoxy resin 2: o-cresol novolak epoxy resin (YDCN 500-90P), epoxy equivalent 190-220 (Kukdo Chemical Co., Ltd.)
에폭시수지 3: 비스페놀 A형 에폭시 수지, 에폭시 당량 600-700 (KCC社)Epoxy resin 3: Bisphenol A type epoxy resin, epoxy equivalent 600-700 (KCC)
에폭시수지 4: 비스페놀 A형 에폭시 수지, 에폭시 당량 730-850 (KCC社)Epoxy resin 4: bisphenol A type epoxy resin, epoxy equivalent 730-850 (KCC)
경화제 1: BTDA(3,3',4,4'-Benzophenonetetracarboxylic dianhydride, Evonik社) Curing agent 1: BTDA (3,3 ', 4,4'-Benzophenonetetracarboxylic dianhydride, Evonik)
경화제 2: DMPF (2,4-dimethylphenyl formamide, Thomas swan社)Curing agent 2: DMPF (2,4-dimethylphenyl formamide, Thomas swan)
경화촉진제: 2MZ (2-메틸이미다졸, 시코쿠社) Curing accelerator: 2MZ (2-methylimidazole, Shikoku)
레벨링제: BYK 368P (BYK社)Leveling agent: BYK 368P (BYK)
핀홀방지제: Benzoin (미원社)Pinhole inhibitor: Benzoin (Miwon)
유색안료1: R-706 (DUPONT社)Colored pigment 1: R-706 (DUPONT)
유색안료2: BAYFERROX 130M (바이에르社)Colored pigment 2: BAYFERROX 130M (Bayer)
무기안료: OMYACARB 15CN (OMYA社)Inorganic pigment: OMYACARB 15CN (OMYA)
[물성 평가][Property evaluation]
실시예 1-8 및 비교예 1-3에서 제조된 분체도료 조성물을 100mmⅹ100mmⅹ1.0mm의 철제에 도장하여 시편을 각각 제조하였다. 이후 하기 물성 측정방법에 따라 시편의 물성을 평가한 후, 그 결과를 하기 표 2에 나타내었다. The powder coating compositions prepared in Example 1-8 and Comparative Examples 1-3 were coated on iron of 100 mm × 100 mm × 1.0 mm to prepare specimens. The properties of the specimens were evaluated according to the following physical property measurement methods, and the results are shown in Table 2 below.
(1) 외관: 상기와 같이 준비된 시편을 230℃의 온도 조건하에서 30분 이상 예열한 후 도장건을 이용하여 예열된 시편에 도장을 실시하여 외관상태를 확인하였다.(1) Appearance: The specimens prepared as described above were preheated for 30 minutes or more at a temperature of 230 DEG C, and the preheated specimens were painted using a coating gun to confirm the appearance of the specimens.
(2) 유리전이온도(Tg): 상기와 같이 준비된 시편을 DSC를 이용하여 도막의 유리전이온도(Tg)를 측정하였다.(2) Glass transition temperature (Tg): The glass transition temperature (Tg) of the coating film prepared above was measured by DSC.
(3) 충격성: 상기와 같이 준비된 시편에 ASTM D-2794 규격에 따라 Dupont impact tester를 이용하여 500g의 추를 30cm 높이에서 낙하시킨 후 도막의 크랙(crack) 발생 여부를 확인하였다.(3) Impact resistance: A 500 g weight was dropped from a height of 30 cm using a Dupont impact tester according to ASTM D-2794 standard to the prepared specimen.
(4) 내열성: 상기와 같이 준비된 시편을 200℃가 유지되는 오븐에 투입한 후 꺼내어 외관, 절연파괴전압, 충격성을 초기값과 비교하여 이상 유무를 확인하였다.(4) Heat resistance: The specimen prepared as described above was put into an oven maintained at 200 ° C, and then taken out to compare the appearance, breakdown voltage and impact resistance with the initial values to confirm the abnormality.
O : 양호(초기값의 40% 이상 유지) O: Good (more than 40% of initial value)
△ : 열세(초기값의 20% 이상 유지) △: Defective (Maintains more than 20% of initial value)
X : 도막의 crack, 도막 절연성능 상실X: Crack of coating film, loss of coating insulation performance
(5) 도착성: 원형의 모터 코어를 준비한 후, 정전유동침적을 통하여 도료를 도포한 후 코어를 절단하여 내부의 외관 및 도장상태를 확인하였다. (5) Arrangement: After preparing a circular motor core, the coating was applied through electrostatic flow deposition, and then the core was cut to confirm the appearance and the coating state of the interior.
Test Items
Exam conditions
상기 표 2에서 나타난 바와 같이, 본 발명의 분체도료 조성물은 전기적 특성이 우수할 뿐만 아니라, 높은 유리전이온도(Tg)로 인해 우수한 내열성과 장시간 내구성을 지속적으로 유지한다는 것을 알 수 있었다. As shown in Table 2, it was found that the powder coating composition of the present invention not only has excellent electrical characteristics, but also maintains excellent heat resistance and long-term durability due to a high glass transition temperature (Tg).
Claims (7)
에폭시 당량이 140 내지 270 g/eq인 제2 에폭시 수지 3 내지 10 중량부,
산무수물 경화제 1 내지 15 중량부, 및
안료 0.1 내지 65 중량부
를 포함하는 분체도료 조성물. 30 to 50 parts by weight of a first epoxy resin having an epoxy equivalent of 700 to 1,300 g / eq,
3 to 10 parts by weight of a second epoxy resin having an epoxy equivalent of 140 to 270 g / eq,
1 to 15 parts by weight of an acid anhydride curing agent, and
0.1 to 65 parts by weight of pigment
≪ / RTI >
제2 에폭시 수지는 크레졸 노볼락 에폭시 수지인 분체도료 조성물. The epoxy resin composition according to claim 1, wherein the first epoxy resin is a bisphenol A epoxy resin,
And the second epoxy resin is a cresol novolak epoxy resin.
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| JP2020157183A (en) * | 2019-03-25 | 2020-10-01 | 住友ベークライト株式会社 | Powder coating method |
| CN120519072A (en) * | 2025-07-24 | 2025-08-22 | 天津凯华绝缘材料股份有限公司 | Epoxy powder composition for micro motor, preparation method and application |
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| CN120519072A (en) * | 2025-07-24 | 2025-08-22 | 天津凯华绝缘材料股份有限公司 | Epoxy powder composition for micro motor, preparation method and application |
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