TW202100597A - 聚胺基甲酸酯水分散體及塗佈劑 - Google Patents
聚胺基甲酸酯水分散體及塗佈劑 Download PDFInfo
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- TW202100597A TW202100597A TW109107157A TW109107157A TW202100597A TW 202100597 A TW202100597 A TW 202100597A TW 109107157 A TW109107157 A TW 109107157A TW 109107157 A TW109107157 A TW 109107157A TW 202100597 A TW202100597 A TW 202100597A
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- polyurethane
- aqueous polyurethane
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
- C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
-
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/44—Polycarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
- C08G18/0819—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups
- C08G18/0823—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups containing carboxylate salt groups or groups forming them
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/0838—Manufacture of polymers in the presence of non-reactive compounds
- C08G18/0842—Manufacture of polymers in the presence of non-reactive compounds in the presence of liquid diluents
- C08G18/0861—Manufacture of polymers in the presence of non-reactive compounds in the presence of liquid diluents in the presence of a dispersing phase for the polymers or a phase dispersed in the polymers
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Abstract
本發明提供一種可獲得各種物性平衡優異、特別是自修復性優異的塗膜的聚胺基甲酸酯水分散體及含有該聚胺基甲酸酯水分散體的塗佈劑。本發明的聚胺基甲酸酯水分散體是將胺基甲酸酯預聚物(A)與鏈延長劑(B)反應而得到的聚胺基甲酸酯(C)分散在水中而得,所述胺基甲酸酯預聚物(A)為使聚異氰酸酯(a)、多元醇(b)、以及具有親水性基的多元醇(c)反應而得到,所述聚胺基甲酸酯水分散體的特徵在於,所述胺基甲酸酯預聚物(A)的重量平均分子量為2,000以上30,000以下,所述聚胺基甲酸酯(C)的交聯度為0.03 mol/kg以上0.15 mol/kg以下,所述聚胺基甲酸酯(C)的脲鍵量為0.5 mol/kg以下。
Description
本發明是有關於一種聚胺基甲酸酯水分散體及塗佈劑。
聚胺基甲酸酯水分散體廣泛用作塗料及塗佈劑的原料,例如航空器、汽車等的內外裝飾用、住宅的外壁面及地板材料等的塗料、塗佈劑的原料。因此,對於聚胺基甲酸酯水分散體,根據其使用的用途及目的等,要求賦予具備各種特性(例如硬度、強度、耐久性等)的塗膜。
例如,在專利文獻1中,作為能夠得到耐油性、耐水解性、耐候性、彎曲加工性、自修復性優異的塗膜的水分散性胺基甲酸酯預聚物及樹脂,揭示了如下水分散性胺基甲酸酯預聚物,即,為(a)有機異氰酸酯,(b)聚碳酸酯二醇及(c)具有一個親水性中心與至少兩個異氰酸酯反應性基的化合物的反應生成物,且聚碳酸酯二醇(b)的規定的三種重覆單元為規定的比率(莫耳比),一級末端OH比率為95%~99.5%。
[現有技術文獻]
[專利文獻]
[專利文獻1]日本專利特開2013-18805號公報
[發明所欲解決之課題]
雖然能夠得到耐油性、耐水解性、耐候性、柔軟性等物性平衡優異的塗膜,但是不存在能夠得到彎曲加工性及自修復性充分的塗膜的聚胺基甲酸酯水分散體。
本發明是基於以上情況而完成,其課題在於,提供一種能夠得到各種物性平衡優異、特別是自修復性優異的塗膜的聚胺基甲酸酯水分散體以及含有該聚胺基甲酸酯水分散體的塗佈劑。
[解決課題之手段]
本發明提供以下[1]及[2]。
[1]一種聚胺基甲酸酯水分散體,是將胺基甲酸酯預聚物(A)與鏈延長劑(B)反應而得到的聚胺基甲酸酯(C)分散於水中而得,所述胺基甲酸酯預聚物(A)為使聚異氰酸酯(a)、多元醇(b)、以及具有親水性基的多元醇(c)反應而得到,所述聚胺基甲酸酯水分散體的特徵在於:所述胺基甲酸酯預聚物(A)的重量平均分子量為2,000以上30,000以下,所述聚胺基甲酸酯(C)的交聯度為0.03 mol/kg以上且0.15 mol/kg以下,所述聚胺基甲酸酯(C)的脲鍵量為0.5 mol/kg以下。
[2]一種塗佈劑,其特徵在於:含有[1]所述的聚胺基甲酸酯水分散體。
[發明的效果]
本發明可提供一種能夠得到各種物性平衡優異、特別是自修復性優異的塗膜的聚胺基甲酸酯水分散體及含有該聚胺基甲酸酯水分散體的塗佈劑。
本發明的聚胺基甲酸酯水分散體是將胺基甲酸酯預聚物(A)與鏈延長劑(B)反應而得到的聚胺基甲酸酯(C)分散在水中而成的聚胺基甲酸酯水分散體,所述胺基甲酸酯預聚物(A)是使聚異氰酸酯(a)、多元醇(b)、以及具有親水性基的多元醇(c)反應而得到。
所述聚異氰酸酯(a)沒有特別限定,可使用本技術領域中通常使用的聚異氰酸酯。具體地說,可以舉出脂肪族聚異氰酸酯、脂環族聚異氰酸酯、芳香族聚異氰酸酯、芳香脂肪族聚異氰酸酯。
作為脂肪族聚異氰酸酯,可列舉:四亞甲基二異氰酸酯、十二亞甲基二異氰酸酯、六亞甲基二異氰酸酯、2,2,4-三甲基六亞甲基二異氰酸酯、2,4,4-三甲基六亞甲基二異氰酸酯、離胺酸二異氰酸酯、2-甲基戊烷-1,5-二異氰酸酯、3-甲基戊烷-1,5-二異氰酸酯等。
作為脂環族聚異氰酸酯,可列舉:異佛爾酮二異氰酸酯、氫化伸二甲苯基二異氰酸酯、4,4'-二環己基甲烷二異氰酸酯、1,4-環己烷二異氰酸酯、甲基伸環己基二異氰酸酯、1,3-雙(異氰酸酯甲基)環己烷等。
作為芳香族聚異氰酸酯,可列舉:甲伸苯基二異氰酸酯(Tolylene Diisocyanate,TDI)、2,2'-二苯基甲烷二異氰酸酯、2,4'-二苯基甲烷二異氰酸酯、4,4'-二苯基甲烷二異氰酸酯(4,4'-Diphenylmethane Diisocyanate,MDI)、4,4'-聯苄基二異氰酸酯、1,5-伸萘基二異氰酸酯、伸二甲苯基二異氰酸酯、1,3-伸苯基二異氰酸酯、1,4-伸苯基二異氰酸酯等。
作為芳香脂肪族聚異氰酸酯,可列舉:二烷基二苯基甲烷二異氰酸酯、四烷基二苯基甲烷二異氰酸酯、α,α,α,α-四甲基伸二甲苯基二異氰酸酯等。
另外,可以舉出該些聚異氰酸酯的二聚體、三聚體或縮二脲化異氰酸酯等改質體。該些可單獨使用或併用兩種以上使用。
上述聚異氰酸酯中,自耐損傷性及耐溶劑性的觀點出發,較佳為脂環族聚異氰酸酯,特佳為4,4'-二環己基甲烷二異氰酸酯、1,4-環己烷二異氰酸酯。
作為上述多元醇(b),例如可使用(b1)聚酯多元醇、(b2)聚碳酸酯二醇、(b3)聚醚多元醇。
作為上述(b1)聚酯多元醇,例如可使用使低分子量的多元醇與多羧酸進行酯化反應而得到的化合物、使ε-己內酯、γ-戊內酯等環狀酯化合物進行開環聚合反應而得到的化合物、以及該些的共聚聚酯等。
作為上述低分子量的多元醇,例如可使用:乙二醇、二乙二醇、三乙二醇、四乙二醇、1,2-丙二醇、1,3-丙二醇、二丙二醇、三丙二醇、1,2-丁二醇、1,3-丁二醇、1,4-丁二醇、2,3-丁二醇、1,5-戊二醇、1,5-己二醇、1,6-己二醇、2,5-己二醇、1,7-庚二醇、1,8-辛二醇、1,9-壬二醇、1,10-癸二醇、1,11-十一烷二醇、1,12-十二烷二醇、2-甲基-1,3-丙二醇、新戊二醇、2-丁基-2-乙基-1,3-丙二醇、3-甲基-1,5-戊二醇、2-乙基-1,3-己二醇、2-甲基-1,8-辛二醇、甘油、三羥甲基丙烷、二三羥甲基丙烷、三三羥甲基丙烷、季戊四醇等脂肪族多元醇;1,4-環己烷二甲醇、加氫雙酚A等含脂肪族環式結構的多元醇;以及雙酚A、雙酚A的環氧烷加成物、雙酚S、雙酚S的環氧烷加成物等雙酚型多元醇。其中,就耐損傷性及耐溶劑性方面而言,較佳為使用脂肪族多元醇。
作為上述多羧酸,例如可單獨使用或併用2種以上使用琥珀酸、己二酸、辛二酸、壬二酸、癸二酸、十二烷二羧酸、二聚酸等脂肪族多羧酸;1,4-環己烷二羧酸或環己烷三羧酸等脂環族多羧酸;鄰苯二甲酸、間苯二甲酸、對苯二甲酸、1,4-萘二羧酸、2,3-萘二羧酸、2,6-萘二羧酸、聯苯二羧酸、偏苯三甲酸、均苯四甲酸等芳香族多羧酸;以及該些的酸酐、或酯衍生物,其中,就耐損傷性及耐溶劑性的方面而言,較佳為使用脂肪族多羧酸。
作為上述(b2)聚碳酸酯二醇,例如可使用使碳酸酯及/或光氣、與後述的多元醇反應而得到的物質。作為上述碳酸酯,例如可使用碳酸二甲酯、碳酸二乙酯、碳酸甲乙酯、碳酸伸乙酯、碳酸伸丙酯、碳酸伸丁酯、碳酸二苯酯、碳酸二萘酯、碳酸苯基萘酯等。
作為上述多元醇,例如可使用:乙二醇、二乙二醇、三乙二醇、四乙二醇、1,2-丙二醇、1,3-丙二醇、二丙二醇、三丙二醇、1,2-丁二醇、1,3-丁二醇、1,4-丁二醇、2,3-丁二醇、1,5-戊二醇、1,5-己二醇、1,6-己二醇、2,5-己二醇、1,7-庚二醇、1,8-辛二醇、1,9-壬二醇、1,10-癸二醇、1,11-十一烷二醇、1,12-十二烷二醇、2-甲基-1,3-丙二醇、新戊二醇、2-丁基-2-乙基-1,3-丙二醇、3-甲基-1,5-戊二醇、2-乙基-1,3-己二醇、2-甲基-1,8-辛二醇、1,4-環己烷二甲醇、對苯二酚、間苯二酚、雙酚A、雙酚F、4,4'-聯苯酚等低分子量二羥基化合物,聚乙二醇、聚丙二醇、聚四亞甲基二醇等聚醚多元醇,聚六亞甲基己二酸酯、聚六亞甲基琥珀酸酯、聚己內酯等聚酯多元醇等。
作為上述(b3)聚醚多元醇,例如可使用以具有2個以上活性氫原子的化合物的一種或兩種以上作為起始劑,使環氧烷加成聚合而成的物質。
作為上述起始劑,例如可使用:水、乙二醇、二乙二醇、三乙二醇、四乙二醇、1,2-丙二醇、1,3-丙二醇、二丙二醇、三丙二醇、1,2-丁二醇、1,3-丁二醇、1,4-丁二醇、2,3-丁二醇、1,5-戊二醇、1,5-己二醇、1,6-己二醇、2,5-己二醇、1,7-庚二醇、1,8-辛二醇、1,9-壬二醇、1,10-癸二醇、1,11-十一烷二醇、1,12-十二烷二醇、2-甲基-1,3-丙二醇、新戊二醇、2-丁基-2-乙基-1,3-丙二醇、3-甲基-1,5-戊二醇、2-甲基-1,3-己二醇、2-甲基-1,8-辛二醇、甘油、二甘油、三羥甲基丙烷、二三羥甲基丙烷、三三羥甲基丙烷、1,2,6-己三醇、三乙醇胺、三異丙醇胺、季戊四醇、二季戊四醇、山梨糖醇、蔗糖、乙二胺、N-乙基二亞乙基三胺、1,2-二胺基丙烷、1,3-二胺基丙烷、1,2-二胺基丁烷、1,3-二胺基丁烷、1,4-二胺基丁烷、二亞乙基三胺、磷酸、酸性磷酸酯等。
作為上述環氧烷,例如可列舉:環氧乙烷、環氧丙烷、環氧丁烷、環氧苯乙烯、表氯醇、四氫呋喃等。
在本發明中,上述(b)多元醇中可含有數平均分子量為400以下的多元醇。
作為上述數平均分子量為400以下的多元醇,是上述多元醇中以下記載的多元醇。即,乙二醇、二乙二醇、三乙二醇、1,2-丙二醇、1,3-丙二醇、新戊二醇、1,3-丁二醇、1,4-丁二醇、3-甲基戊二醇、1,6-己二醇、1,8-辛二醇、2-甲基-1,3-丙二醇、雙酚A、氫化雙酚A、環己烷二甲醇、甘油或三羥甲基丙烷等。
上述具有親水性基的多元醇(c)的親水性基可列舉陰離子性親水基、陽離子性親水基、非離子性親水基,具體而言,作為陰離子性親水基,可列舉羧基及其鹽、磺酸基及其鹽;作為陽離子性親水基,可列舉三級銨鹽、四級銨鹽;作為非離子性親水基,可列舉包含環氧乙烷的重覆單元的基、包含環氧乙烷的重覆單元與其他環氧烷的重覆單元的基等。
作為上述具有羧基的多元醇,例如可列舉:2,2-二羥甲基丙酸、2,2-二羥甲基丁酸、2,2-二羥甲基戊酸、二氧基馬來酸、2,6-二氧基苯甲酸、3,4-二胺基苯甲酸等含羧酸的化合物及該些的衍生物及該些的鹽,除此之外,還可列舉使用該些而得的聚酯多元醇。進而,還可列舉:丙胺酸、胺基丁酸、胺基己酸、甘胺酸、麩胺酸、天冬胺酸、組胺酸等胺基酸類,琥珀酸、己二酸、馬來酸酐、鄰苯二甲酸、偏苯三甲酸酐等羧酸類。
作為上述具有磺酸基及其鹽的多元醇,例如可列舉:2-氧乙烷磺酸、苯酚磺酸、磺基苯甲酸、磺基琥珀酸、5-磺基間苯二甲酸、對胺苯磺酸、1,3-苯二胺-4,6-二磺酸、2,4-二胺基甲苯-5-磺酸等含磺酸的化合物及該些的衍生物、以及將該些共聚得到的聚酯多元醇、聚醯胺多元醇、聚醯胺聚酯多元醇等。
該些羧基或磺酸基可藉由中和而成鹽,使最終得到的聚胺基甲酸酯為水分散性。作為此時的中和劑,例如可列舉:氫氧化鈉、氫氧化鉀等不揮發性鹼,三甲胺、三乙胺、二甲基乙醇胺、甲基二乙醇胺、三乙醇胺等三級胺類,氨等揮發性鹼等。中和可在胺基甲酸酯化反應前、反應中或反應後任意一種中進行。
作為上述具有三級銨鹽的多元醇,可以舉出甲基胺基乙醇、甲基二乙醇胺等烷醇胺。藉由用甲酸、乙酸等有機羧酸、鹽酸、硫酸等無機酸中和該些而成為鹽,可以使聚胺基甲酸酯為水分散性。中和可以在胺基甲酸酯化反應前、反應中或反應後的任意一種進行。
作為上述具有四級銨鹽的多元醇,為藉由氯甲基、溴甲基等鹵化烷基、二甲基硫酸等二烷基硫酸將上述甲基胺基乙醇、甲基二乙醇胺等烷醇胺進行了四級化的化合物。
上述具有非離子性親水基的多元醇沒有特別限制,較佳為含有至少30重量%以上的環氧乙烷的重覆單元,數平均分子量為300~20000的化合物,例如可列舉聚氧乙二醇或聚氧乙烯-聚氧丙烯共聚物二醇、聚氧乙烯-聚氧丁烯共聚物二醇、聚氧乙烯-聚氧伸烷基共聚物二醇或其單烷基醚等含非離子性基的化合物,或將該些共聚而得的聚酯聚醚多元醇。
上述具有親水性基的多元醇(c)可分別單獨使用,亦可組合使用。
上述具有親水性基的多元醇(c)的親水性基為陰離子性親水基時,聚胺基甲酸酯的酸值較佳為5 mgKOH/g以上,更佳為10 mgKOH/g以上。另一方面,較佳為50 mgKOH/g以下,更佳為45 mgKOH/g以下。酸值在上述範圍內時,在水分散性、耐水性方面較佳。
鏈延長劑(B)可使用在該技術領域中通常使用的鏈延長劑。沒有特別限制,具體可使用二胺或多胺。作為二胺,可以例示乙二胺、三亞甲基二胺、哌嗪、異佛爾酮二胺等,作為多胺,可以例示二亞乙基三胺、二亞丙基三胺、三亞乙基四胺等。在本發明中,從耐損傷性的觀點出發,較佳為二亞乙基三胺。
本發明的聚胺基甲酸酯水分散體的製造方法沒有特別限定,一般來說,以多元醇(b)、及具有親水性基的多元醇(c)、以及鏈延長劑(B)中含有的羥基和胺基的合計計,使化學計量上過剩的聚異氰酸酯(a)的異氰酸酯基與羥基及胺基的合計量的當量比為1:0.85~1.1,在無溶劑的條件下或不具有活性氫基的有機溶劑中反應而合成胺基甲酸酯預聚物後,進行具有親水性基的多元醇(c)的陰離子性親水基或陽離子性親水基的中和,之後在水中進行分散乳化,藉此獲得聚胺基甲酸酯水分散體。其後,根據需要去除使用過的溶劑,藉此可得到聚胺基甲酸酯水分散體。
作為上述不具有活性氫基的有機溶劑,沒有特別限制,具體而言,可列舉:二噁烷、甲基乙基酮、二甲基甲醯胺、四氫呋喃、N-甲基-2-吡咯烷酮、甲苯、丙二醇單甲醚乙酸酯等。較佳為反應中使用的該些親水性有機溶劑最終去除。
上述胺基甲酸酯預聚物(A)的數平均分子量為2,000以上30,000以下,但自耐溶劑性及耐損傷性的觀點出發,較佳為3,000以上,更佳為5,000以上。另外,較佳為20,000以下,更佳為15,000以下。
上述聚胺基甲酸酯的交聯度為0.03 mol/kg以上0.15 mol/kg以下,但自耐溶劑性及耐損傷性的觀點出發,較佳為0.04 mol/g以上,更佳為0.05 mol/g以上。另一方面,較佳為0.12 mol/g以下,更佳為0.10 mol/g以下。
上述聚胺基甲酸酯的脲鍵量為0.5 mol/kg以下,但從耐溶劑性和耐損傷性的觀點出發,較佳為0.05 mol/kg以上,更佳為0.1 mol/kg。另一方面,較佳為0.45 mol/kg以下,更佳為0.25 mol/kg以下。
本發明的塗佈劑中,只要不妨礙本發明的效果,可使用通常使用的各種添加劑。作為此種添加劑,可列舉例如耐候劑、抗菌劑、抗黴劑、顏料、填充材料、防銹劑、染料、成膜助劑、無機交聯劑、有機交聯劑(例如封端異氰酸酯系交聯劑、環氧系交聯劑、碳二醯亞胺系交聯劑、噁唑啉類交聯劑、三聚氰胺類交聯劑)、矽烷偶合劑、防黏連劑、黏度調節劑、調平劑、消泡劑、分散穩定劑、光穩定劑、抗氧化劑、紫外線吸收劑、無機、有機填充劑、增塑劑、潤滑劑、抗靜電劑等。
[實施例]
以下,對於實施例及比較例具體地說明本發明,但本發明並不限定於此。
<聚胺基甲酸酯水分散體的合成>
[實施例1]
在具備攪拌機、回流冷卻管、溫度計及氮氣吹入管的四口燒瓶中,加入65.06質量份的聚酯多元醇(旭化成化學股份有限公司製、商品名「PCDL T-4671」、含有作為原料的1,4-丁二醇與1,6-己二醇。重覆單元:1,4-丁二醇/1,6-己二醇=7/3(莫耳比)、羥基值=112.2 mgKOH/g,數平均分子量=1000),5.00質量份的二羥甲基丙酸,100質量份的甲基乙基酮,充分攪拌溶解,接著加入29.94質量份的二環己基甲烷二異氰酸酯,在75℃下反應直至NCO含量達到0.84%。然後,將該預聚物溶液冷卻至45℃,加入作為中和劑的三乙胺3.77質量份,使用均質混合器乳化後,添加0.65質量份的二亞乙基三胺,在30℃下進行鏈延長反應30分鐘。將該樹脂溶液在加熱減壓下蒸餾除去甲基乙基酮,得到固體成分25%的聚胺基甲酸酯水分散體。
[實施例2]~[實施例12]、[比較例1]~[比較例4]
各原料的種類和投料量如下述表1所示變更,除此以外,與實施例1同樣地進行製造,得到各聚胺基甲酸酯水分散體。
[塗佈層的製作]在聚對苯二甲酸乙二酯基材(東麗(Toray)股份有限公司製PET,型號:#100 T60)上,以膜厚約為20 μm的方式塗佈上述聚胺基甲酸酯水分散體,在80℃下乾燥6小時,藉此製作了塗佈層。
[黏性評價]
目視觀察以500g負荷將上述塗佈層彼此黏貼剝離時塗佈層面的狀態。塗佈層面彼此不接著的情況為○,黏貼面積的50%以上接著的情況記為△,全部接著的情況記為×。
[耐溶劑評價]
在塗佈層中浸入醋酸乙酯/甲苯的混合溶劑的毛氈中,以500g負荷進行10次摩擦試驗,目視觀察塗佈層面的狀態。塗佈層面不變化的情況為○,被侵蝕的情況為△,塗佈層剝離的情況為×。
[自修復性]
用500g負荷的黃銅絲刷(藤原產業股份有限公司製No.9)對塗佈層面往返摩擦5次,目視觀察硬化膜上的損傷情況。評價是在室溫23℃下進行,10秒以內損傷復原的記為○,10秒~10分鐘左右的記為△,經過1小時亦未復原的記為×。
[表1]
*1:旭化成化學股份有限公司製、商品名「PCDL T-4671」、含有作為原料的1,4-丁二醇與1,6-己二醇。重覆單元:1,4-丁二醇/1,6-己二醇=7/3(莫耳比)、羥基值=112.2 mgKOH/g,數平均分子量=1000
*2:旭化成化學股份有限公司製、商品名「PCDL T-4672」、含有作為原料的1,4-丁二醇與1,6-己二醇。重覆單元:1,4-丁二醇/1,6-己二醇=7/3(莫耳比)、羥基值=56.1 mgKOH/g,數平均分子量=2000)
*3:宇部與產股份有限公司製、商品名「ETERNACOLL UH-50」、含有作為原料的1,6-己二醇。羥基值=224.4 mgKOH/g,數平均分子量=500)
*4:旭化成化學股份有限公司製、商品名「PCDL T-5651」、含有作為原料的1,5-戊二醇與1,6-己二醇。重覆單元:1,5-戊二醇/1,6-己二醇=1/1(莫耳比)、羥基值=112.2 mgKOH/g,數平均分子量=1000)
*5:庫拉雷(Kuraray)股份有限公司製、商品名「Kuraray Polyol P-1010」,含有作為原料的3-甲基-1,5-戊二醇和己二酸。 羥基值=112.2 mgKOH/g,數平均分子量=1000)
*6:三菱化學股份有限公司製、商品名「PTMG1000」、聚四亞甲基二醇、數平均分子量=1000)
| 實施例1 | 實施例2 | 實施例3 | 實施例4 | 實施例5 | 實施例6 | 實施例7 | 實施例8 | 實施例9 | 實施例10 | 實施例11 | 實施例12 | 比較例1 | 比較例2 | 比較例3 | 比較例4 | |||
| 組成 | 多元醇 | T-4671*1 | 65.00 | 65.00 | 62.60 | 55.00 | 59.00 | 66.50 | ||||||||||
| T-4672*2 | 70.00 | 73.70 | 46.20 | 46.20 | ||||||||||||||
| UH-50*3 | 54.00 | |||||||||||||||||
| T-5651*4 | 65.00 | 66.00 | 66.00 | |||||||||||||||
| P-1010*5 | 65.00 | |||||||||||||||||
| PTMG1000*6 | 65.00 | |||||||||||||||||
| 1,4-CHDM | 4.50 | 4.00 | 4.00 | |||||||||||||||
| EG | 3.10 | 3.10 | ||||||||||||||||
| TMP | 0.65 | |||||||||||||||||
| DMPA | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 7.20 | 7.20 | ||
| 異氰酸酯 | H12 MDI | 30.00 | 30.00 | 31.75 | 25.00 | 21.30 | 35.50 | 41.00 | 30.00 | 29.00 | 29.00 | 30.00 | 30.00 | 36.00 | 28.50 | 39.50 | 39.50 | |
| 合計 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | ||
| 胺延長劑 | DETA | 0.65 | 0.65 | 1.30 | 0.33 | 0.65 | 0.65 | 0.65 | 0.65 | 0.65 | 0.65 | 0.65 | 0.40 | |||||
| EDA | 0.72 | 0.60 | ||||||||||||||||
| 中和劑 | TEA | NaOH | TEA | TEA | TEA | TEA | TEA | TEA | TEA | NaOH | TEA | TEA | TEA | TEA | NH4 | NH4 | ||
| 設計 | PP分子量 | Mw | 10000 | 10000 | 10000 | 5000 | 20000 | 10000 | 10000 | 10000 | 20000 | 20000 | 10000 | 10000 | 2500 | 32500 | 20000 | 20000 |
| 交聯度 | (mol/kg) | 0.06 | 0.06 | 0.06 | 0.12 | 0.03 | 0.06 | 0.06 | 0.06 | 0.03 | 0.03 | 0.06 | 0.06 | 0.00 | 0.04 | 0.00 | 0.00 | |
| 脲鍵量 | (mol/kg) | 0.23 | 0.23 | 0.28 | 0.45 | 0.13 | 0.23 | 0.23 | 0.23 | 0.13 | 0.13 | 0.23 | 0.23 | 0.90 | 0.10 | 0.00 | 0.00 | |
| 黏性 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | △ | × | × | ||
| 耐溶劑性 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | 〇 | △ | × | × | ||
| 自修復性 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | △ | 〇 | × | × |
如表1所示,可知聚胺基甲酸酯水分散體的脲鍵量大時,自修復性變差(比較例1),胺基甲酸酯預聚物的重量平均分子量大時,黏性及耐溶劑性變差(比較例2)。另外,在用水進行了鏈延長、即脲鍵量為0(mol/kg)的情況下,黏性、耐溶劑性、自修復性全部惡化(比較例3及4)。
[產業上之可利用性]
本發明的水分散體可用作塗佈劑。特別是由於自修復性良好,並且黏性及耐溶劑性良好,故可較佳地應用於要求該些性能的領域。
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Claims (2)
- 一種聚胺基甲酸酯水分散體,為將胺基甲酸酯預聚物(A)與鏈延長劑(B)反應而得到的聚胺基甲酸酯(C)分散於水中而得,所述胺基甲酸酯預聚物(A)為使聚異氰酸酯(a)、多元醇(b)以及具有親水性基的多元醇(c)反應而得到,所述聚胺基甲酸酯水分散體的特徵在於: 所述胺基甲酸酯預聚物(A)的重量平均分子量為2,000以上30,000以下, 所述聚胺基甲酸酯(C)的交聯度為0.03 mol/kg以上0.15 mol/kg以下, 所述聚胺基甲酸酯(C)的脲鍵量為0.5 mol/kg以下。
- 一種塗佈劑,其特徵在於:含有如請求項1所述的聚胺基甲酸酯水分散體。
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|---|---|
| US (1) | US20220185942A1 (zh) |
| EP (1) | EP3950863A4 (zh) |
| JP (1) | JP6903832B2 (zh) |
| KR (1) | KR20210143742A (zh) |
| CN (1) | CN113574129A (zh) |
| TW (1) | TW202100597A (zh) |
| WO (1) | WO2020195964A1 (zh) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112480354B (zh) * | 2020-12-01 | 2022-08-09 | 安徽朗凯奇建材有限公司 | 一种阳离子型自修复水性聚氨酯及制备方法 |
| JP7198380B1 (ja) * | 2022-04-28 | 2022-12-28 | 大日精化工業株式会社 | ポリウレタン水分散体、接着剤、合成擬革、及び塗料 |
| US12202234B2 (en) * | 2022-06-09 | 2025-01-21 | Stek Co., Ltd. | Exterior film of building for protecting glass |
| CN115677961A (zh) * | 2022-07-20 | 2023-02-03 | 江苏休伦新材料有限公司 | 一种超纤革用底涂树脂及其制备方法 |
| CN115491116A (zh) * | 2022-10-09 | 2022-12-20 | 睿合科技有限公司 | 一种高强度自修复车载显示屏防护涂层 |
| JP7726941B2 (ja) | 2023-03-17 | 2025-08-20 | 第一工業製薬株式会社 | ポリウレタン樹脂の水分散体、及びコーティング剤 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3936794A1 (de) * | 1989-11-04 | 1991-05-08 | Bayer Ag | Waessriges ueberzugsmittel und die verwendung von in wasser dispergierbaren polyurethanpolyharnstoffen als bindemittel |
| EP0552420A3 (en) * | 1992-01-24 | 1993-09-15 | H.B. Fuller Licensing & Financing, Inc. | Water dispersed polyurethane polymer for improved coatings and adhesives |
| US5763526A (en) * | 1995-07-31 | 1998-06-09 | Nippon Paint Co., Ltd. | Urethane prepolymer, process for producing urethane prepolymer, isocyanate compound, and polyurethane dispersion |
| US5798409A (en) * | 1995-10-03 | 1998-08-25 | Minnesota Mining & Manufacturing Company | Reactive two-part polyurethane compositions and optionally self-healable and scratch-resistant coatings prepared therefrom |
| JP2002129008A (ja) * | 2000-10-24 | 2002-05-09 | Dai Ichi Kogyo Seiyaku Co Ltd | 一液型水性防水材組成物、防水構造体及び防水施工方法 |
| JP4509057B2 (ja) * | 2006-04-05 | 2010-07-21 | 第一工業製薬株式会社 | 金属材料表面処理用水系塗料組成物 |
| JP5870938B2 (ja) * | 2011-02-10 | 2016-03-01 | 宇部興産株式会社 | 水性ポリウレタン樹脂分散体及びその使用 |
| WO2012165569A1 (ja) * | 2011-05-31 | 2012-12-06 | 宇部興産株式会社 | 水性ポリウレタン樹脂分散体及びそれを含有するコーティング用組成物 |
| JP5797954B2 (ja) | 2011-07-07 | 2015-10-21 | 旭化成ケミカルズ株式会社 | 水分散性ウレタンプレポリマー、水分散ポリウレタン樹脂とそれを用いた水系塗料組成物 |
| TW201906887A (zh) * | 2017-06-29 | 2019-02-16 | 日商迪愛生股份有限公司 | 胺基甲酸酯樹脂組成物、鋼板表面處理劑及具有其塗膜之鋼板 |
| JP6761392B2 (ja) | 2017-09-19 | 2020-09-23 | 日本電信電話株式会社 | 半導体光集積素子 |
-
2020
- 2020-03-05 TW TW109107157A patent/TW202100597A/zh unknown
- 2020-03-13 CN CN202080021174.XA patent/CN113574129A/zh active Pending
- 2020-03-13 EP EP20777595.8A patent/EP3950863A4/en not_active Withdrawn
- 2020-03-13 JP JP2021509053A patent/JP6903832B2/ja active Active
- 2020-03-13 US US17/437,472 patent/US20220185942A1/en not_active Abandoned
- 2020-03-13 KR KR1020217028018A patent/KR20210143742A/ko not_active Withdrawn
- 2020-03-13 WO PCT/JP2020/011146 patent/WO2020195964A1/ja not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020195964A1 (ja) | 2020-10-01 |
| JPWO2020195964A1 (ja) | 2021-09-13 |
| KR20210143742A (ko) | 2021-11-29 |
| CN113574129A (zh) | 2021-10-29 |
| EP3950863A1 (en) | 2022-02-09 |
| EP3950863A4 (en) | 2022-11-30 |
| JP6903832B2 (ja) | 2021-07-14 |
| US20220185942A1 (en) | 2022-06-16 |
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