CN105333300B - A kind of air accumulator liner and air accumulator and preparation method thereof - Google Patents
A kind of air accumulator liner and air accumulator and preparation method thereof Download PDFInfo
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- CN105333300B CN105333300B CN201410383671.0A CN201410383671A CN105333300B CN 105333300 B CN105333300 B CN 105333300B CN 201410383671 A CN201410383671 A CN 201410383671A CN 105333300 B CN105333300 B CN 105333300B
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- air accumulator
- layer
- liner
- density polyethylene
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- 238000002360 preparation method Methods 0.000 title claims abstract description 33
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 80
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 80
- 239000004714 Polar ethylene copolymer Substances 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 40
- 239000010959 steel Substances 0.000 claims description 40
- 238000004804 winding Methods 0.000 claims description 35
- 239000000835 fiber Substances 0.000 claims description 27
- 239000000178 monomer Substances 0.000 claims description 27
- 239000003795 chemical substances by application Substances 0.000 claims description 25
- 229920005989 resin Polymers 0.000 claims description 19
- 239000011347 resin Substances 0.000 claims description 19
- -1 polyethylene Polymers 0.000 claims description 18
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 16
- 229920001568 phenolic resin Polymers 0.000 claims description 16
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 15
- 239000004698 Polyethylene Substances 0.000 claims description 14
- 229920000573 polyethylene Polymers 0.000 claims description 14
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 13
- 239000005011 phenolic resin Substances 0.000 claims description 13
- 239000003365 glass fiber Substances 0.000 claims description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 10
- 238000007334 copolymerization reaction Methods 0.000 claims description 10
- 238000000071 blow moulding Methods 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 9
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 6
- 239000004917 carbon fiber Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 239000005977 Ethylene Substances 0.000 claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 3
- 239000004925 Acrylic resin Substances 0.000 claims description 2
- 229920000178 Acrylic resin Polymers 0.000 claims description 2
- 239000002033 PVDF binder Substances 0.000 claims description 2
- 229920001038 ethylene copolymer Polymers 0.000 claims description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 2
- 239000004593 Epoxy Substances 0.000 claims 1
- 229920000891 common polymer Polymers 0.000 claims 1
- 229920005749 polyurethane resin Polymers 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 239000003822 epoxy resin Substances 0.000 description 18
- 229920000647 polyepoxide Polymers 0.000 description 18
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 12
- 238000007171 acid catalysis Methods 0.000 description 8
- 238000006116 polymerization reaction Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 239000011521 glass Substances 0.000 description 7
- 238000000227 grinding Methods 0.000 description 7
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 239000004312 hexamethylene tetramine Substances 0.000 description 6
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 6
- 239000011265 semifinished product Substances 0.000 description 6
- 150000001336 alkenes Chemical class 0.000 description 5
- 239000002657 fibrous material Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 239000003949 liquefied natural gas Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000005007 epoxy-phenolic resin Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- SOIAEOTUSNFHMI-UHFFFAOYSA-N 2-(2-aminoethylamino)ethane-1,1-diol Chemical compound NCCNCC(O)O SOIAEOTUSNFHMI-UHFFFAOYSA-N 0.000 description 2
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 2
- 150000008065 acid anhydrides Chemical class 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 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 2
- YMHQVDAATAEZLO-UHFFFAOYSA-N cyclohexane-1,1-diamine Chemical compound NC1(N)CCCCC1 YMHQVDAATAEZLO-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexamethylene diamine Natural products NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 2
- FBPASULVPNFLTF-UHFFFAOYSA-N n'-[2-(ethoxyamino)ethyl]ethane-1,2-diamine Chemical compound CCONCCNCCN FBPASULVPNFLTF-UHFFFAOYSA-N 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- DIGDEPKXCWMYBK-UHFFFAOYSA-N (2-aminoethylamino)methanol Chemical compound NCCNCO DIGDEPKXCWMYBK-UHFFFAOYSA-N 0.000 description 1
- JPSKCQCQZUGWNM-UHFFFAOYSA-N 2,7-Oxepanedione Chemical compound O=C1CCCCC(=O)O1 JPSKCQCQZUGWNM-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- IRQMMPJCYXMJHX-UHFFFAOYSA-N 2-[(2-aminoethylamino)methyl]propanedinitrile Chemical compound NCCNCC(C#N)C#N IRQMMPJCYXMJHX-UHFFFAOYSA-N 0.000 description 1
- NSQSYCXRUVZPKI-UHFFFAOYSA-N 3-(2-aminoethylamino)propanenitrile Chemical compound NCCNCCC#N NSQSYCXRUVZPKI-UHFFFAOYSA-N 0.000 description 1
- RNLHGQLZWXBQNY-UHFFFAOYSA-N 3-(aminomethyl)-3,5,5-trimethylcyclohexan-1-amine Chemical compound CC1(C)CC(N)CC(C)(CN)C1 RNLHGQLZWXBQNY-UHFFFAOYSA-N 0.000 description 1
- MWSKJDNQKGCKPA-UHFFFAOYSA-N 6-methyl-3a,4,5,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1CC(C)=CC2C(=O)OC(=O)C12 MWSKJDNQKGCKPA-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- YTVVEZHRLAWDEO-UHFFFAOYSA-N OC(N(CC)O)CNCCN Chemical compound OC(N(CC)O)CNCCN YTVVEZHRLAWDEO-UHFFFAOYSA-N 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- LHIJANUOQQMGNT-UHFFFAOYSA-N aminoethylethanolamine Chemical compound NCCNCCO LHIJANUOQQMGNT-UHFFFAOYSA-N 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 230000001458 anti-acid effect Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002118 epoxides Chemical class 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004299 exfoliation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 229920001912 maleic anhydride grafted polyethylene Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VYKXQOYUCMREIS-UHFFFAOYSA-N methylhexahydrophthalic anhydride Chemical compound C1CCCC2C(=O)OC(=O)C21C VYKXQOYUCMREIS-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- ZETYUTMSJWMKNQ-UHFFFAOYSA-N n,n',n'-trimethylhexane-1,6-diamine Chemical compound CNCCCCCCN(C)C ZETYUTMSJWMKNQ-UHFFFAOYSA-N 0.000 description 1
- 229920006113 non-polar polymer Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- AGGKEGLBGGJEBZ-UHFFFAOYSA-N tetramethylenedisulfotetramine Chemical compound C1N(S2(=O)=O)CN3S(=O)(=O)N1CN2C3 AGGKEGLBGGJEBZ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention relates to a kind of air accumulator liner, which includes the first high-density polyethylene layer, the second high-density polyethylene layer and polar ethylene copolymer outer layer successively from inside to outside.A kind of preparation method of air accumulator liner is further related to, air accumulator liner prepared by the above method, further relates to a kind of air accumulator, and a kind of preparation method of air accumulator.In the present invention, on the basis of air accumulator high corrosion resistance is ensured, it is possible to increase compatibility between liner and fibrous outer simultaneously ensures the higher resistance to pressure of air accumulator, in addition, the air accumulator of the present invention is also prevented from electrostatic, ensures that air accumulator is using and the security in transportational process.
Description
Technical field
The present invention relates to a kind of air accumulator liner, a kind of preparation method of air accumulator liner, it is prepared by this method
Air accumulator liner, a kind of air accumulator including above-mentioned air accumulator liner and a kind of preparation method of air accumulator.
Background technology
Natural gas is a kind of very clean fuel, and very friendly to environment, it is as automobile power source economy
It is very high.Compressed natural gas (CNG) and liquefied natural gas (LNG) automobile widely use in the whole nation at present, and many cities are in political affairs
Under the policy support at mansion, bus and taxi have largely been used instead using CNG or LNG as fuel, dirty to reduce urban atmosphere
Dye has made major contribution.At present, the storage tank as CNG or LNG is mostly steel air accumulator.In addition, also have using in steel
The air accumulator that courage, outside are strengthened using fiber winding.
There is the defects of many using steel air accumulator or using the air accumulator of steel inner container outer layer fiber winding.Example
Such as, steel air accumulator weight is big, it not only considerably increases the burden of automobile, also add at the same time as automobile-used gas storage equipment
The energy consumption of car, the mileage for reducing single gas storage traveling.The original amount for using CNG to be installed additional every time as fuel is simultaneously few, due to volume
Outer increased weight and make it that aerating is more frequent.Further more, steel air accumulator is metal, it is easy to is corroded and produces leakage.
Once revealing, steel air accumulator has very lethal firepower.And for steel storage tank, plastic inner container significantly reduces
Weight, the weight for reducing load needed for automobile, not only increase the payload of automobile, also improve the utilization of motor vehicle fuel
Rate, has the good feature of environmental protection.In addition, plastic inner container also has good corrosion resistance, anti acid alkali performance and thermal insulation, Neng Gouyou
It is internal that effect prevents that extraneous heat conduction from entering, and avoids the pressure rising of inside too fast.
But plastic inner container is generally high-density polyethylene material, plastic air storage tank shell is generally fibrous material, and high
Density polyethylene is non-polar polymer, and fibrous material is usually polar material, although using high density polyethylene (HDPE) as liner, with
Fibrous material has more excellent acid-alkali-corrosive-resisting as the air accumulator that shell obtains, but due to both compatibilities not
It is good, cause shell easy to fall off, after shell comes off, cause the resistance to pressure of air accumulator can not be guaranteed so that the longevity of air accumulator
Life is extremely of short duration, it is impossible to meets the requirement used.
For the drawbacks described above of existing plastic air storage tank, it is badly in need of a kind of acid-alkali-corrosive-resisting, resistance to pressure height and shell and liner
Good air accumulator of compatibility and preparation method thereof.
The content of the invention
The purpose of the invention is to overcome existing air accumulator, acid-alkali-corrosive-resisting, resistance to pressure be not low and shell and liner phase
The defects of capacitive is bad, there is provided a kind of air accumulator liner, a kind of preparation method of air accumulator liner, be prepared by this method
Air accumulator liner, a kind of air accumulator including above-mentioned air accumulator liner and a kind of preparation method of air accumulator.
The present inventor has found that air accumulator liner includes the first high density polyethylene (HDPE) successively from inside to outside under study for action
Layer, the second high-density polyethylene layer and polar ethylene copolymer outer layer, you can realize and ensureing that the higher acid and alkali-resistance of air accumulator is rotten
On the basis of erosion, improve the shell of air accumulator and the compatibility of liner and ensure the higher resistance to pressure of air accumulator.
Therefore, to achieve these goals, the present invention provides a kind of air accumulator liner, the air accumulator liner is from inside to outside
Include the first high-density polyethylene layer, the second high-density polyethylene layer and polar ethylene copolymer outer layer successively.
On the other hand, present invention also offers a kind of preparation method of air accumulator liner, this method includes gathering high density
Ethene, polar ethylene copolymer, which are sent into three layers of extrusion-blown modling equipment, carries out extrusion and blow molding, forms the first high-density polyethylene
The air accumulator liner that alkene layer, the second high-density polyethylene layer and polar polyethylene outer layer fit closely.
The third aspect, present invention also offers air accumulator liner prepared by the above method.
Fourth aspect, present invention also offers a kind of air accumulator, which includes liner and shell, and the liner is such as
The upper air accumulator liner.
5th aspect, present invention also offers a kind of preparation method of air accumulator, this method comprises the following steps：
(1) will high density polyethylene (HDPE), polar ethylene copolymer be sent into three layers of extrusion-blown modling equipment in carry out extrusion-blown modling into
Type, forms the air accumulator that the first high-density polyethylene layer, the second high-density polyethylene layer and polar polyethylene outer layer fit closely
Liner；
(2) by surface attachment have the fiber uniform winding of liquid resin and curing agent on the surface of the air accumulator liner simultaneously
Cure, to form fibrous layer on the surface of the air accumulator liner.
The air accumulator liner of the present invention, due to including the first high-density polyethylene layer, the second high density successively from inside to outside
Polyethylene layer and polar ethylene copolymer outer layer, polar ethylene copolymer can not only carry out mutual well with high density polyethylene (HDPE)
It is molten, additionally it is possible to bonded well with fibrous material, therefore, fibrous layer shell is not easy to fall off, good with the compatibility of liner,
Since fibrous layer shell is not easily to fall off, it can ensure the higher resistance to pressure of air accumulator, further, since high density polyethylene (HDPE) sheet
Body is corrosion-resistant, therefore can ensure the higher acid-alkali-corrosive-resisting of air accumulator.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of fiber canoe according to the present invention；
Fig. 2 is the schematic diagram of another fiber canoe according to the present invention.
Embodiment
The embodiment of the present invention is described in detail below.It is it should be appreciated that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The present invention provides a kind of air accumulator liner, which includes the first high-density polyethylene successively from inside to outside
Alkene layer, the second high-density polyethylene layer and polar ethylene copolymer outer layer.
Wherein, the high density polyethylene (HDPE) is using ethene as a kind of crystallinity that raw material produces is high, nonpolar thermoplasticity
Resin, has good resistance to low temperature, chemical stabilization and corrosion resistance.The high density polyethylene (HDPE) is commercially available, example
Maoming Petrochemical, Exxon Mobil Corporation can be such as purchased from.Under preferable case, the density of high density polyethylene (HDPE) is 0.946-
0.976g/cm3, melting temperature be 130-145 DEG C.
In the present invention, air accumulator liner includes the first high-density polyethylene layer successively from inside to outside, the second high density is gathered
Pvdf layer and polar ethylene copolymer outer layer, refer to include the first high-density polyethylene layer, the second high density successively from inside to outside
Polyethylene layer and polar ethylene copolymer outer layer form air accumulator liner.
Air accumulator liner according to the present invention, as long as the air accumulator liner includes the first high density successively from inside to outside
Polyethylene layer, the second high-density polyethylene layer and polar ethylene copolymer outer layer, just can ensure higher acid-alkali-corrosive-resisting
On the basis of, improve the shell of air accumulator and the compatibility of liner and ensure the higher resistance to pressure of air accumulator.But in order into one
Step improves the shell of air accumulator and the compatibility of liner and ensures the higher resistance to pressure of air accumulator, it is preferable that the polar ethylene
Polar ethylene copolymer in copolymer outer layer is formed by ethene and polar monomer copolymerization, and the polar monomer is selected from acrylic acid list
At least one of body, first class acrylate monomer, acrylate monomer and Vinyl Acetate Monomer, are preferably acrylic monomers
And/or Vinyl Acetate Monomer.
Air accumulator liner according to the present invention, to the performance of polar ethylene copolymer, there is no particular limitation, such as
Its average degree of polymerization can be 250-300.Wherein, the condition of copolymerization and method can be the ethene and polarity list of this area routine
Condition and method needed for body copolymerization, as long as the polar ethylene copolymer of the above-mentioned degree of polymerization can be formed.
Air accumulator liner according to the present invention, the first high-density polyethylene layer, the second high-density polyethylene layer and pole
The thickness of sex ethylene copolymer outer layer can be the thickness of this area routine, it is preferable that when the thickness of the first high-density polyethylene layer
To spend for 3-5mm, the thickness of the second high-density polyethylene layer is 3-5mm, when the thickness of polar ethylene copolymer outer layer is 1-3mm,
It can further improve the shell of air accumulator and the compatibility of liner on the basis of higher acid-alkali-corrosive-resisting is ensured and ensure to store up
The higher resistance to pressure of gas tank.Wherein, outside the first high-density polyethylene layer, the second high-density polyethylene layer and polar ethylene copolymer
Layer thickness can it is identical can not also be identical.
On the other hand, present invention also offers a kind of preparation method of air accumulator liner, this method includes gathering high density
Ethene, polar ethylene copolymer, which are sent into three layers of extrusion-blown modling equipment, carries out extrusion and blow molding, forms the first high-density polyethylene
The air accumulator liner that alkene layer, the second high-density polyethylene layer and polar polyethylene outer layer fit closely.
It should be appreciated by those skilled in the art three layers of extrusion-blown modling equipment generally include three extruders and one
Blow moulding machine.It can carry out heating melting in three extruders to high density polyethylene (HDPE) and polar polyethylene respectively, and will pass through not
Material after same extruder heating melting is extruded by same three layers compound die head, so as to obtain with three fitted closely
The tubular blanks of layer.And then the tubular blanks are cut into segment closed at both ends, and blow moulding machine blow molding is used, obtain
To the air accumulator liner of the present invention.Wherein, the condition of extrusion and blow molding is known to the skilled person, and will no longer be gone to live in the household of one's in-laws on getting married herein
State.
The preparation method of air accumulator liner according to the present invention, wherein it is preferred to, outside the polar ethylene copolymer
Polar ethylene copolymer in layer is formed by ethene and polar monomer copolymerization, the polar monomer acrylic monomers, first class propylene
At least one of acid ester monomer, acrylate monomer and Vinyl Acetate Monomer, are preferably acrylic monomers and/or acetic acid second
Allyl ester monomer, can further improve the shell of air accumulator and the compatibility of liner and ensure the higher resistance to pressure of air accumulator.
The preparation method of air accumulator liner according to the present invention, it is not special to the degree of polymerization of polar ethylene copolymer
Restriction, such as average degree of polymerization can be 250-300.Wherein, the condition of copolymerization and method can be the second of this area routine
Alkene and the condition and method needed for polar monomer copolymerization, as long as polar ethylene copolymer can be formed.
For example preceding institute of the thickness of first high-density polyethylene layer, the second high-density polyethylene layer and polar ethylene copolymer outer layer
State, details are not described herein.
The third aspect, present invention also offers air accumulator liner prepared by the above method.
Fourth aspect, present invention also offers a kind of air accumulator, which includes liner and shell, and the liner is such as
The upper air accumulator liner.
Air accumulator according to the present invention, wherein, shell can be the conventional selection of this area, such as it can be fibre
Layer is tieed up, the species of fiber such as can be in glass fibre, carbon fiber and composite fibre known in art technology in fibrous layer
At least one.Wherein, composite fibre refers to by two or more polymer or has same polymerization of different nature
Thing, through chemical fibre made of composite spinning method.Composite fibre for example can be the composite fibre of glass fibre and carbon fiber.
Air accumulator according to the present invention, wherein it is preferred to, which further includes the steel wire of enclosure,
The steel wire set outside fibrous layer can prevent the generation of electrostatic, so as to be more advantageous to improving the storage for being mounted with liquified natural gas
Security of the gas tank in transportational process.
5th aspect, present invention also offers a kind of preparation method of air accumulator, this method comprises the following steps：
(1) will high density polyethylene (HDPE), polar ethylene copolymer be sent into three layers of extrusion-blown modling equipment in carry out extrusion-blown modling into
Type, forms the air accumulator that the first high-density polyethylene layer, the second high-density polyethylene layer and polar polyethylene outer layer fit closely
Liner；
(2) by surface attachment have the fiber uniform winding of liquid resin and curing agent on the surface of the air accumulator liner simultaneously
Cure, to form fibrous layer on the surface of the air accumulator liner.
The preparation method of air accumulator according to the present invention, it is preferable that after step (2), surface attachment is had into liquid
The steel wire uniform winding of resin and curing agent is in the surface of the fibrous layer and curing, so as to form steel wire outside fibrous layer
Net, and then can prevent the generation of electrostatic, it is more advantageous to improving the air accumulator for being mounted with liquified natural gas in transportational process
Security.
The preparation method of air accumulator according to the present invention, wherein, the dosage of the liquid resin and curing agent can be with
Make choice and change in the larger context, if enable to after curing can by fiber and liner, fiber and fiber,
Fiber is together with steel wire strong bonded, for example, the part by weight of the liquid resin and curing agent such as can be 2-
2.5：1.
The preparation method of air accumulator according to the present invention, wherein, the liquid resinous species can be this area
Known in technical staff.For example, the liquid resin can be selected from unsaturated polyester resin, epoxy resin, phenolic resin, polyurethane
At least one of resin, acrylic resin and polyvinylidene fluoride resin, are preferably epoxy resin and/or phenolic resin.It is described
Epoxy resin and phenolic resin can properly select in conventional epoxy resin and phenolic resin.Specifically, the epoxy
Resin is preferably bisphenol A type epoxy resin.The epoxide number of the epoxy resin can be 0.3-0.55mol/100g, its is heavy respectively
Son amount can be 500-10000, be preferably 800-5000.The phenolic resin can be that acid catalysis phenolic resin and/or alkali are urged
Change phenolic resin, be preferably acid catalysis phenolic resin.The weight average molecular weight of the acid catalysis phenolic resin can be 300-
12000, it is preferably 500-5000.
The preparation method of air accumulator according to the present invention, wherein, the species of the curing agent can be this area skill
Known in art personnel, and can reasonably it be selected according to liquid resin used.For example, when the liquid resin is asphalt mixtures modified by epoxy resin
During fat, the curing agent can be amine curing agent and/or acid anhydride type curing agent.The instantiation of the amine curing agent can be with
Including but not limited to：Ethylenediamine, trimethylhexamethylenediamine, hexamethylenetetramine, diethyl triamine, methylol ethylenediamine,
Hydroxyethyl ethylenediamine, dihydroxy ethyl ethylenediamine, ethoxy diethylenetriamine, dihydroxy ethyl ethylenediamine, ethoxy diethylenetriamine,
Dihydroxy ethyl diethylenetriamine, ethoxy hexamethylene diamine, a cyanoethyl ethylenediamine, dicyanoethyl ethylenediamine, dicyanoethyl hexamethylene diamine,
At least one of dicyandiamide, cyclohexanediamine, Meng's alkane diamines, amine ethyl croak piperazine, isophorone diamine and diaminocyclohexane.Institute
The instantiation for stating acid anhydride type curing agent can include but is not limited to：Methyl tetrahydrophthalic anhydride, methyl hexahydrophthalic anhydride, fourth
At least one of dicarboxylic anhydride and adipic anhydride.When the liquid resin is phenolic resin, the curing agent is preferably six times
Tetramine.
In the present invention, to mode of the fiber uniform winding on the air accumulator liner surface is not particularly limited,
For example, can be along the direction winding parallel to radial direction, can also be with the winding that radially has a certain degree., can be with preferable case
Fiber is wound as follows：First layer, winds along the direction parallel to radial direction, i.e., is in 0 ° with radial direction；Second
Layer, with being radially wrapped in about 25 ° above first layer (as shown in Figure 1)；Third layer, with being radially wrapped in the second layer in about 25 °
Above, but it is in 130 ° (as shown in Figure 2) with the second layer；The mode as the aforementioned of winding layer afterwards is alternately wound.Institute
Stating winding can carry out manually, existing Wiring apparatus can also be used to carry out, this those skilled in the art can be known,
This will not be described in great detail.
The number of plies of the winding can be reasonably selected according to actual conditions, for example, can be 20-40 layers.Correspondingly,
The thickness of obtained shell can be 7-12mm.
The preparation method of air accumulator according to the present invention, wherein, fiber is wrapped in the table of the air accumulator liner
The condition of face solidify afterwards can be this area conventional selection, for example, the cured temperature can be 20-150 DEG C, it is cured
Time can be 30 minutes -24 it is small when；Preferably, the cured temperature be 100-150 DEG C, the cured time be 30-60 point
Clock.
The preparation method of air accumulator according to the present invention, wherein, to by steel wire uniform winding in the fibrous layer
The mode on surface does not have special requirement, can be along parallel to radially as long as steel wire can be formed outside fibrous layer
Direction winding, the interval between can also often being enclosed with the winding that radially has a certain degree, steel wire can be 2-3mm.
The preparation method of air accumulator according to the present invention, wherein, by steel wire winding the air accumulator liner table
The condition of face solidify afterwards can be the conventional selection of this area, such as can be by after steel wire winding to fiber layer surface, in 80-
Cure 30-40min at 120 DEG C, i.e., 1-2 layers of steel wire is formed outside fibrous layer.
The preparation method of air accumulator according to the present invention, wherein, which further includes right after steel wire is formed
The outer surface of air accumulator carries out grinding process.
Embodiment
The present invention will be described in detail by way of examples below.
Embodiment 1
The present embodiment is used to illustrate air accumulator liner and air accumulator of the present invention and preparation method thereof
(1) three layers of liner are prepared：
In three layers of extrusion-blown modling equipment, high density polyethylene (HDPE) (is purchased from Maoming Petrochemical, density 0.96g/cm respectively3、
Melting temperature is 130-145 DEG C) add in internal layer, intermediate layer extruder hopper, ethylene acrylic acid co polymer (is purchased from DOWization
Company, average degree of polymerization 300) add in outer layer extruder hopper, adjustment internal layer thickness is 3mm, intermediate layer thickness is
3mm, outer layer thickness 3mm, extrusion temperature are 160 DEG C, and extrusion-blown modling forms air accumulator liner；
(2) fiber is wound：
By liquid-state epoxy resin (PLIOGRIP 5000A, ASHLAND companies) and curing agent (PLIOGRIP 5020B,
ASHLAND companies) press 2：1 weight ratio is uniformly mixed, and by glass fibre (No. 1000, the limited public affairs of Beijing prosperity glass fibre
Department) it is immersed in the mixed liquor of above-mentioned epoxy resin and curing agent, obtaining surface attachment has liquid-state epoxy resin and curing agent
Glass fibre.And the outer surface for three layers of liner for obtaining the glass fiber winding in step (1)：First layer, along parallel to footpath
To direction wind, i.e., with radial direction be in 0 °；The second layer, with being radially wrapped in 25 ° above first layer；Third layer, with footpath
It is wrapped in in 25 ° above the second layer, but is in 130 ° with the second layer；The mode as the aforementioned of winding layer afterwards is alternately
Winding, winds 28 layers, then cures 45min at 100 DEG C altogether, obtains the air accumulator semi-finished product that outer casing thickness is 8.5mm.
(3) steel wire winding：
Steel wire (commercially available) is immersed in above-mentioned steps (2) in the mixed liquor of obtained epoxy resin and curing agent, is obtained
Surface attachment has the steel wire of liquid-state epoxy resin and curing agent, and the steel wire winding is obtained air accumulator semi-finished product in step (2)
Outer surface：Wound along the direction parallel to radial direction, between often enclosing at intervals of 2mm, wind 1 layer, then cure at 80 DEG C
30min, obtained outer surface are provided with the air accumulator of steel wire.
(4) grinding process
The air accumulator that the surface that step (3) obtains is provided with to steel wire carries out grinding process, and air accumulator finished product C1 is made.
Embodiment 2
The present embodiment is used to illustrate air accumulator liner and air accumulator of the present invention and preparation method thereof
(1) three layers of liner are prepared：
In three layers of extrusion-blown modling equipment, high density polyethylene (HDPE) (is purchased from Maoming Petrochemical, density 0.96g/cm respectively3、
Melting temperature is 130-145 DEG C) add in internal layer, intermediate layer extruder hopper, ethylene acrylic acid co polymer (is purchased from DOWization
Company, average degree of polymerization 250) add in outer layer extruder hopper, adjustment internal layer thickness is 4mm, intermediate layer thickness is
4mm, outer layer thickness 2mm, extrusion temperature are 160 DEG C, and extrusion-blown modling forms air accumulator liner；
(2) fiber is wound：
By liquid-state epoxy resin (PLIOGRIP 5000A, ASHLAND companies) and curing agent (PLIOGRIP 5020B,
ASHLAND companies) press 2.13：1 weight ratio is uniformly mixed, and (No. 1000, Beijing prosperity glass fibre is limited by glass fibre
Company) it is immersed in the mixed liquor of above-mentioned epoxy resin and curing agent, obtaining surface attachment has liquid-state epoxy resin and curing agent
Glass fibre.And the outer surface for three layers of liner for obtaining the glass fiber winding in step (1)：First layer, along parallel to
The direction winding of radial direction, i.e., be in 0 ° with radial direction；The second layer, with being radially wrapped in 25 ° above first layer；Third layer, with
Radially it is wrapped in 25 ° above the second layer, but is in 130 ° with the second layer；The mode as the aforementioned of winding layer afterwards alternately into
Row winding, winds 20 layers, then cures 30min at 125 DEG C altogether, obtains the air accumulator semi-finished product that outer casing thickness is 7mm.
(3) steel wire winding：
Steel wire (commercially available) is immersed in above-mentioned steps (2) in the mixed liquor of obtained epoxy resin and curing agent, is obtained
Surface attachment has the steel wire of liquid-state epoxy resin and curing agent, and the steel wire winding is obtained air accumulator semi-finished product in step (2)
Outer surface：Wound along the direction parallel to radial direction, it is then solid at 100 DEG C at intervals of 2.5mm, 1 layer of winding between often enclosing
Change 35min, obtained outer surface is provided with the air accumulator of steel wire.
(4) grinding process
The air accumulator that the surface that step (3) obtains is provided with to steel wire carries out grinding process, and air accumulator finished product C2 is made.
Embodiment 3
The present embodiment is used to illustrate air accumulator liner and air accumulator of the present invention and preparation method thereof
(1) three layers of liner are prepared：
In three layers of extrusion-blown modling equipment, high density polyethylene (HDPE) (is purchased from Maoming Petrochemical, density 0.96g/cm respectively3、
Melting temperature is 130-145 DEG C) add in internal layer, intermediate layer extruder hopper, vinyl acetate (is purchased from E.I.Du Pont Company, put down
Average molecular weight is 3000, average degree of polymerization 300) add in outer layer extruder hopper, adjustment internal layer thickness is 5mm, intermediate layer
Thickness is 5mm, outer layer thickness 1mm, and extrusion temperature is 160 DEG C, and extrusion-blown modling forms air accumulator liner；
(2) fiber is wound：
The acid catalysis phenolic resin (Wuxi light chemical plant, the trade mark 2130) of liquid and hexamethylenetetramine are pressed 2.5：
1 weight ratio is uniformly mixed, and by carbon fiber (being purchased from state-run 251 factory, model 2000#) be immersed in acid catalysis phenolic resin and
In the mixed liquor of hexamethylenetetramine, obtaining surface attachment has the carbon fiber of acid catalysis phenolic resin and hexamethylenetetramine.And
The outer surface for three layers of liner that the carbon fiber winding is obtained in step (1)：First layer, winds along the direction parallel to radial direction,
It it is in 0 ° i.e. with radial direction；The second layer, with being radially wrapped in 25 ° above first layer；Third layer, with being radially wrapped in 25 °
Above the second layer, but it is in 130 ° with the second layer；The mode as the aforementioned of winding layer afterwards is alternately wound, and winds 40 altogether
Layer, then cures 60min at 150 DEG C, obtains the air accumulator semi-finished product that outer casing thickness is 12mm.
(3) steel wire winding：
Steel wire (commercially available) is immersed in the mixed of obtained acid catalysis phenolic resin and hexamethylenetetramine in above-mentioned steps (2)
Close in liquid, obtaining surface attachment has the steel wire of acid catalysis phenolic resin and hexamethylenetetramine, and by the steel wire winding in step
(2) outer surface of air accumulator semi-finished product is obtained：Wound along parallel to radial direction in 30 ° of direction, between often enclosing at intervals of 3mm,
1 layer of winding, then cures 30min, obtained outer surface is provided with the air accumulator of steel wire at 120 DEG C.
(4) grinding process
The air accumulator that the surface that step (3) obtains is provided with to steel wire carries out grinding process, and air accumulator finished product C3 is made.
Embodiment 4
The present embodiment is used to illustrate air accumulator liner and air accumulator of the present invention and preparation method thereof
Gas storage liner and air accumulator are prepared according to the method for embodiment 1, unlike, the second in the outer layer of air accumulator liner
Alkene acrylic copolymer replace with maleic anhydride grafted polyethylene (Beijing company of Puli's Hong Bin chemical materials Co., Ltd,
The trade mark is GR204), air accumulator finished product C4 is made.
Embodiment 5
The present embodiment is used to illustrate air accumulator liner and air accumulator of the present invention and preparation method thereof
Gas storage liner and air accumulator are prepared according to the method for embodiment 1, unlike, in step (2), adjustment first is high
The thickness of density polyethylene (internal layer) is 2mm, and the thickness of the second high-density polyethylene layer (intermediate layer) is 7mm, polar ethylene
The thickness of copolymer outer layer is 5mm, and air accumulator finished product C5 is made.
Comparative example 1
Gas storage liner and air accumulator are prepared according to the method for embodiment 1, unlike, prepare two layers of liner：Squeezed at two layers
Go out on blow moulding equipment, high density polyethylene (HDPE) (is purchased from Maoming Petrochemical, density 0.96g/cm respectively3, melting temperature 130-
145 DEG C) add in internal layer, outer layer extruder hopper, adjustment internal layer thickness is 5mm, outer layer thickness 6mm, extrusion temperature 160
DEG C, extrusion-blown modling forms air accumulator liner, and air accumulator finished product D1 is made.
Test case
The air accumulator C1-C5 that embodiment 1-5 the is prepared and air accumulator D1 that comparative example 1 is prepared is subjected to pressure-resistant survey
Examination, specific test method are carried out according to GB/T 6111-2003, and measurement result is shown in Table 1.
Table 1
| Air accumulator finished product | Voltage-withstand test result |
| C1 | 16.3MPa, glass are not fallen off |
| C2 | 15.6MPa, glass are not fallen off |
| C3 | 14.2MPa, glass are not fallen off |
| C4 | 14.8MPa, glass are not fallen off |
| C5 | 11.1MPa, glass partial exfoliation |
| D1 | 8.1MPa, glass largely come off |
By embodiment 1-5 and comparative example 1 compare as can be seen that air accumulator produced by the present invention shell and liner it is compatible
Property is good, it is not easy to comes off, and the air accumulator also has anti-static function.
By embodiment 1 as can be seen that the polar ethylene in the polar ethylene copolymer outer layer is copolymerized compared with embodiment 4
Thing is formed by ethene and polar monomer copolymerization, and the polar monomer is selected from acrylic monomers, first class acrylate monomer, acrylic acid
When at least one of ester monomer and Vinyl Acetate Monomer, there can be more preferable compatibility with impregnating resin, glass is not easy to take off
Fall, strengthened liner resistance to pressure.
By embodiment 1 as can be seen that the thickness of the first high-density polyethylene layer is 3-5mm compared with embodiment 5, second is high
The thickness of density polyethylene is 3-5mm, and the thickness of polar ethylene copolymer outer layer is 1-3mm, can ensure higher acid
On the basis of alkali is corrosion resistant, further improves the compatibility of air accumulator shell and liner and ensure the higher resistance to pressure of air accumulator.
The air accumulator liner of the present invention, due to including the first high-density polyethylene layer, the second high density successively from inside to outside
Polyethylene layer and polar ethylene copolymer outer layer, polar ethylene copolymer can not only carry out mutual well with high density polyethylene (HDPE)
It is molten, additionally it is possible to bonded well with fibrous material, therefore, fibrous layer shell is not easy to fall off, good with the compatibility of liner,
Since fibrous layer shell is not easily to fall off, it can ensure the higher resistance to pressure of air accumulator, further, since high density polyethylene (HDPE) sheet
Body is corrosion-resistant, therefore can ensure the higher acid-alkali-corrosive-resisting of air accumulator, prevents in addition, air accumulator produced by the present invention also has
Electrostatic function, ensures that air accumulator is using and the security in transportational process.
The preferred embodiment of the present invention described in detail above, still, during present invention is not limited to the embodiments described above
Detail, in the range of the technology design of the present invention, a variety of simple variants can be carried out to technical scheme, this
A little simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (11)
1. a kind of air accumulator liner, it is characterised in that the air accumulator liner includes the first high density polyethylene (HDPE) successively from inside to outside
Layer, the second high-density polyethylene layer and polar ethylene copolymer outer layer, the polar ethylene in the polar ethylene copolymer outer layer
Copolymer is formed by ethene and polar monomer copolymerization, and the polar monomer is acrylic monomers and/or Vinyl Acetate Monomer, institute
The thickness for stating the first high-density polyethylene layer is 3-5mm, and the thickness of second high-density polyethylene layer is 3-5mm, the pole
The thickness of sex ethylene copolymer outer layer is 1-3mm.
2. a kind of preparation method of air accumulator liner, it is characterised in that this method includes high density polyethylene (HDPE), polar ethylene is common
Polymers, which is sent into three layers of extrusion-blown modling equipment, carries out extrusion and blow molding, forms the first high-density polyethylene layer, the second high density
The air accumulator liner that polyethylene layer and polar polyethylene outer layer fit closely, the polarity second in the polar ethylene copolymer outer layer
Alkene copolymer is formed by ethene and polar monomer copolymerization, and the polar monomer is acrylic monomers and/or Vinyl Acetate Monomer,
The thickness of first high-density polyethylene layer is 3-5mm, and the thickness of second high-density polyethylene layer is 3-5mm, described
The thickness of polar ethylene copolymer outer layer is 1-3mm.
3. the air accumulator liner being prepared as the method described in claim 2.
4. a kind of air accumulator, it is characterised in that the air accumulator includes liner and shell, and the liner is to appoint in claim 1 and 3
Air accumulator liner described in meaning one.
5. air accumulator according to claim 4, wherein, the shell includes fibrous layer.
6. air accumulator according to claim 5, wherein, the fiber in the fibrous layer be selected from glass fibre, carbon fiber and
At least one of composite fibre.
7. the air accumulator according to claim 5 or 6, wherein, which further includes the steel wire of enclosure.
8. a kind of preparation method of air accumulator, it is characterised in that this method comprises the following steps：
(1) high density polyethylene (HDPE), polar ethylene copolymer are sent into three layers of extrusion-blown modling equipment and carry out extrusion and blow molding, shape
The air accumulator liner fitted closely into the first high-density polyethylene layer, the second high-density polyethylene layer and polar polyethylene outer layer,
Polar ethylene copolymer in the polar ethylene copolymer outer layer is formed by ethene and polar monomer copolymerization, the polar monomer
For acrylic monomers and/or Vinyl Acetate Monomer, the thickness of first high-density polyethylene layer is 3-5mm, described second
The thickness of high-density polyethylene layer is 3-5mm, and the thickness of the polar ethylene copolymer outer layer is 1-3mm；
(2) surface attachment there is into the fiber uniform winding of liquid resin and curing agent on the surface of the air accumulator liner and consolidated
Change, to form fibrous layer on the surface of the air accumulator liner.
9. preparation method according to claim 8, wherein, which is additionally included in step
(2) after, surface attachment there is into the steel wire uniform winding of liquid resin and curing agent in the surface of the fibrous layer and curing.
10. preparation method according to claim 8 or claim 9, wherein, the weight ratio of the liquid resin and the curing agent is
2-2.5：1.
11. preparation method according to claim 10, wherein, the liquid resin is selected from unsaturated polyester resin, epoxy
At least one of resin, phenolic resin, polyurethane resin, acrylic resin and polyvinylidene fluoride resin.
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| MX2008010543A (en) * | 2006-02-17 | 2008-10-29 | William Rodgers | Articles of composite construction and methods of manufacture thereof. |
| JP5007426B2 (en) * | 2007-06-28 | 2012-08-22 | 株式会社Ｆｔｓ | Automotive fuel tank |
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| CN203110417U (en) * | 2013-02-07 | 2013-08-07 | 可乐丽股份有限公司 | Fuel container |
| CN104565794B (en) * | 2013-10-22 | 2017-09-29 | 中国石油化工股份有限公司 | A kind of air accumulator inner bag and air accumulator and preparation method thereof |
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