CN117004360A - 适用于免底涂基材的双组分胶粘剂组合物 - Google Patents
适用于免底涂基材的双组分胶粘剂组合物 Download PDFInfo
- Publication number
- CN117004360A CN117004360A CN202310967310.XA CN202310967310A CN117004360A CN 117004360 A CN117004360 A CN 117004360A CN 202310967310 A CN202310967310 A CN 202310967310A CN 117004360 A CN117004360 A CN 117004360A
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- Prior art keywords
- adhesive composition
- component
- substrate
- polyol
- isocyanate
- Prior art date
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- Pending
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- 230000001070 adhesive effect Effects 0.000 title claims abstract description 98
- 239000000203 mixture Substances 0.000 title claims abstract description 81
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- 150000003077 polyols Chemical class 0.000 claims abstract description 73
- 239000012948 isocyanate Substances 0.000 claims abstract description 40
- 150000001875 compounds Chemical class 0.000 claims abstract description 31
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- 239000013638 trimer Substances 0.000 claims abstract description 26
- 229920001730 Moisture cure polyurethane Polymers 0.000 claims abstract description 22
- -1 aromatic isocyanate compound Chemical class 0.000 claims description 17
- 239000005062 Polybutadiene Substances 0.000 claims description 15
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- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 11
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 9
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- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 claims description 4
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims description 4
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 claims description 4
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- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 11
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- VLJQDHDVZJXNQL-UHFFFAOYSA-N 4-methyl-n-(oxomethylidene)benzenesulfonamide Chemical compound CC1=CC=C(S(=O)(=O)N=C=O)C=C1 VLJQDHDVZJXNQL-UHFFFAOYSA-N 0.000 description 8
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- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 6
- 239000004970 Chain extender Substances 0.000 description 6
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- 230000032683 aging Effects 0.000 description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 5
- YSWBFLWKAIRHEI-UHFFFAOYSA-N 4,5-dimethyl-1h-imidazole Chemical compound CC=1N=CNC=1C YSWBFLWKAIRHEI-UHFFFAOYSA-N 0.000 description 4
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 4
- 125000001931 aliphatic group Chemical group 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
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- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 4
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- 238000003756 stirring Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
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- 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 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 description 2
- 239000003508 Dilauryl thiodipropionate Substances 0.000 description 2
- 239000002656 Distearyl thiodipropionate Substances 0.000 description 2
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- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- KRADHMIOFJQKEZ-UHFFFAOYSA-N Tri-2-ethylhexyl trimellitate Chemical compound CCCCC(CC)COC(=O)C1=CC=C(C(=O)OCC(CC)CCCC)C(C(=O)OCC(CC)CCCC)=C1 KRADHMIOFJQKEZ-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
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- PWWSSIYVTQUJQQ-UHFFFAOYSA-N distearyl thiodipropionate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCCCCCCC PWWSSIYVTQUJQQ-UHFFFAOYSA-N 0.000 description 2
- 235000019305 distearyl thiodipropionate Nutrition 0.000 description 2
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
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- 239000002904 solvent Substances 0.000 description 2
- 239000013008 thixotropic agent Substances 0.000 description 2
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 1
- LTMRRSWNXVJMBA-UHFFFAOYSA-L 2,2-diethylpropanedioate Chemical compound CCC(CC)(C([O-])=O)C([O-])=O LTMRRSWNXVJMBA-UHFFFAOYSA-L 0.000 description 1
- RMZNKGBPQWTSFN-UHFFFAOYSA-N 2,2-diphenylethoxy(methyl)silane Chemical compound C[SiH2]OCC(C1=CC=CC=C1)C1=CC=CC=C1 RMZNKGBPQWTSFN-UHFFFAOYSA-N 0.000 description 1
- YAJYJWXEWKRTPO-UHFFFAOYSA-N 2,3,3,4,4,5-hexamethylhexane-2-thiol Chemical compound CC(C)C(C)(C)C(C)(C)C(C)(C)S YAJYJWXEWKRTPO-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- MUXOBHXGJLMRAB-UHFFFAOYSA-N Dimethyl succinate Chemical compound COC(=O)CCC(=O)OC MUXOBHXGJLMRAB-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 1
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- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 description 1
- HXNDUMRFWWGNQX-UHFFFAOYSA-N [5,5-dimethyl-1-(2-methylpropanoyloxy)hexyl] 2-methylpropanoate Chemical compound C(C(C)C)(=O)OC(CCCC(C)(C)C)OC(C(C)C)=O HXNDUMRFWWGNQX-UHFFFAOYSA-N 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
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- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001844 chromium Chemical class 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
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- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 description 1
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- 150000002148 esters Chemical class 0.000 description 1
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
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- 150000004665 fatty acids Chemical class 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000005227 gel permeation chromatography Methods 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
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- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
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- XHLCCKLLXUAKCM-UHFFFAOYSA-N octadecyl 2-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C(C)C1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 XHLCCKLLXUAKCM-UHFFFAOYSA-N 0.000 description 1
- 125000005474 octanoate group Chemical group 0.000 description 1
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- 239000000454 talc Substances 0.000 description 1
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- MZHULIWXRDLGRR-UHFFFAOYSA-N tridecyl 3-(3-oxo-3-tridecoxypropyl)sulfanylpropanoate Chemical compound CCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCC MZHULIWXRDLGRR-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
- B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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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
- C08G18/2805—Compounds having only one group containing active hydrogen
- C08G18/2815—Monohydroxy compounds
- C08G18/282—Alkanols, cycloalkanols or arylalkanols including terpenealcohols
- C08G18/2825—Alkanols, cycloalkanols or arylalkanols including terpenealcohols having at least 6 carbon atoms
-
- 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
- C08G18/2805—Compounds having only one group containing active hydrogen
- C08G18/2815—Monohydroxy compounds
- C08G18/283—Compounds containing ether groups, e.g. oxyalkylated monohydroxy compounds
-
- 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
- C08G18/2805—Compounds having only one group containing active hydrogen
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Abstract
公开了一种适用于免底涂基材的双组分胶粘剂组合物,包括第一组分和第二组分,其中第一组分包括多元醇和单羟基化合物,和第二组分包括聚氨酯预聚物和异氰酸酯三聚体。还公开了一种经涂覆的基材,包括基材和涂覆于至少部分基材上的所述的双组分胶粘剂组合物。
Description
技术领域
本发明涉及胶粘剂领域,具体涉及适用于免底涂基材的双组分胶粘剂组合物。
背景技术
塑料及复合材料越来越多的被应用在汽车制造中。目前塑料及复合材料已经应用在了诸如汽车尾门、扰流板等部件上。常用的基材包括PP、PP/LGF、SMC、PC/ABS、PMMA/ASA、PC/PET、PVC等。扰流板和汽车尾门等通常直接使用胶粘剂进行粘接。
塑料及复合材料基材的使用对粘接用胶粘剂提出了更高的要求。由于基材表面能较低,传统胶粘剂难以进行有效粘接,所以制造商常使用溶剂型底涂剂对基材进行处理,增强胶粘剂对底材的附着力。但是底涂剂含有大量可挥发溶剂,并不环保,而且额外增加了成本,还增加了后期扰流板、尾门等部件之间开胶的风险。
本发明旨在开发一种新型胶粘剂产品,在免底涂处理的情况下,仍然能对塑料及复合材料基材进行有效粘接,表现为破坏形式为内聚破坏。同时,胶粘剂还需要有一定的粘接强度、较高的伸长率、以及良好的耐高温、耐水老化性能等。
发明内容
本发明人进行了大量研究并开发出一种适用于免底涂基材的双组分胶粘剂组合物,其解决了上述技术问题,如,在免底涂的情况下对塑料及复合材料基材进行有效粘接,具有优异的粘接强度、伸长率、耐高温性和耐水老化性能等。
本发明提供了一种双组分胶粘剂组合物,包括第一组分和第二组分,其中第一组分包括多元醇和单羟基化合物,和第二组分包括聚氨酯预聚物和异氰酸酯三聚体。
本发明还公开了一种经涂覆的基材,包括基材和涂覆于至少部分基材上的上述双组分胶粘剂组合物。
具体实施方式
在本申请中,除非另有明确说明,单数的使用包括复数且复数包括单数。例如,虽然在本文中提及“一种”聚合物,但可以使用一种或多种的该物质。
在本申请中,术语“包括”、“包含”和“含有”等不是限制本发明来排除任何变体或添加。此外,尽管本发明已经以“包括”等术语来描述胶粘剂组合物、制备方法等,本文详述的胶粘剂组合物、制备方法等也可以描述为“基本上由……组成”或“由……组成”。在这种情况下,“基本上由……组成”意味着任何额外的成分都不会对胶粘剂组合物所形成的胶层的特性产生实质性影响。
在本申请中,除非另有明确说明,使用“或”表示“和/或”,即使在某些情况下可明确地使用“和/或”。另外,应当理解,本文列出的任何数值范围意图包括其中所含的所有子范围。例如,“1至10”的范围意图包括在所列举的最小值1和所列举的最大值10之间(包括端值)的所有子范围,即具有等于或大于1的最小值和等于或小于10的最大值的所有子范围。
除了实施例中的或另外明确说明的,应当认为说明书和权利要求书中使用的所有代表成分的数量等的数值在所有情况下均可按照术语“约”进行变化。因此,除非有相反的说明,否则以下的说明书和权利要求书中所列出的数值参数均为近似值,可以按照本发明想要获得的性能而变化。起码,不是为了限制对于权利要求范围的等同原则的适用。每个数值参数至少应当按照有效数字来解释并运用普通的四舍五入。
尽管表述本发明宽范围的数值范围和参数是近似值,但具体实施例中列出的数值记录的尽可能准确。但是,任何一个数值本来就具有一定的误差,该误差是其相应的测量方法中得出的标准偏差的必然结果。
如上所述,本发明涉及一种双组分胶粘剂组合物,包括第一组分和第二组分,其中第一组分包括多元醇和单羟基化合物,和第二组分包括聚氨酯预聚物和异氰酸酯三聚体。
根据本发明的胶粘剂组合物是一种无溶剂体系,其主要成分包括树脂、固化剂、颜填料和/或添加剂。
根据本发明的胶粘剂组合物是一种双组分体系,即,将胶粘剂组合物的成分分开为两个组分,两个组分分别包装,使用前再将两个包装以准确比例混合。
在本发明的胶粘剂组合物中,所述第一组分和第二组分具有适当的粘度。合适地,所述第一组分的室温(23~25℃)下粘度可以为40000-60000cps。合适地,所述第二组分的室温(23~25℃)下粘度可以为40000-60000cps。所述粘度可以通过带有RV#7转子的布氏粘度计(Brookfield Viscometer)在每秒50转的速度下测量得到。
根据本发明的胶粘剂组合物可以在室温下或升高温度下固化。所述室温可以为15~30℃。例如,根据本发明的胶粘剂组合物可以在室温下在3~7天内固化。或者,根据本发明的胶粘剂组合物可以在80℃下在3小时内固化。在本文中,所述“固化”是指胶粘剂组合物混合后发生化学反应并达到最终强度80%,且固化时间从胶粘剂组合物的两组分混合开始计算。固化后,根据本发明的胶粘剂组合物所形成的胶层的厚度可以为0.1~4mm。
根据本发明的胶粘剂组合物可以适用于免底涂的基材。所述“免底涂”是指基材表面未经任何底涂剂预处理,或基材表面未涂覆任何底涂剂的膜层。也就是说,根据本发明的胶粘剂组合物所形成的胶层与基材直接接触。
根据本发明的胶粘剂组合物适用于塑料和/或复合材料等基材。合适地,所述基材包括PP、PP/LGF、SMC、PC/ABS、PMMA/ASA、PC/PET、和/或PVC,其中“/”指“和”,如,“PP/LGF”指包含PP和LGF的基材。
在本发明的胶粘剂组合物中,第一组分包括多元醇和单羟基化合物。所述“多元醇”是指每个分子中含有至少两个羟基的化合物。所述“单羟基化合物”是指每个分子中仅含有一个羟基的化合物。所述多元醇和单羟基化合物中所含有的羟基可以与第二组分中的NCO基团反应。并且,所述多元醇与单羟基化合物以特定的比例存在于第一组分中。合适地,所述多元醇与单羟基化合物的重量比可以为2:1至11:1。例如,所述多元醇与单羟基化合物的重量比可以为3:1、4:1、5:1、6:1、7:1、8:1、9:1或10:1。
适合用于本发明的多元醇可以具有2~4的平均官能度,例如,平均官能度为2、3或4。所述“平均官能度”是指平均每个分子中能够参与反应的官能团数。合适地,所述多元醇可以包括一种或多种官能度相同或不同的多元醇。合适地,所述多元醇可以包括聚醚多元醇,如芳香族聚醚多元醇和脂肪族聚醚多元醇,聚酯多元醇,如含侧基的二聚酸聚酯多元醇,聚碳酸酯多元醇,聚丁二烯多元醇,和/或油脂化学多元醇。
例如,所述多元醇可以包括聚丁二烯多元醇。所述聚丁二烯多元醇可以包括端羟基。合适地,所述多元醇可以包括基于多元醇总重量的40~90wt%的聚丁二烯多元醇,诸如50wt%,60wt%,70wt%或80wt%的聚丁二烯多元醇。所述多元醇还可以包括芳香族聚醚多元醇、脂肪族聚醚多元醇、含侧基的二聚酸聚酯多元醇、油脂化学多元醇、和/或聚碳酸酯多元醇。例如,所述多元醇还可以包括芳香族聚醚多元醇、含侧基的二聚酸聚酯多元醇、和/或油脂化学多元醇。合适地,所述聚丁二烯多元醇、芳香族聚醚多元醇、含侧基的二聚酸聚酯多元醇和油脂化学多元醇的重量比可以为4~8:0~1:0~4:0~2。
适合用于本发明的多元醇可以具有400~5000数均分子量。例如,所述多元醇可以具有1000,1500,2000,2500,3000,3500,4000或4500的数均分子量。所述数均分子量可以通过凝胶渗透色谱法使用适当的标准物如聚苯乙烯标准物测定。
基于第一组分的总重量,所述多元醇的含量可以为至少约20wt%,合适地至少约25wt%,合适地至少约30wt%,和/或至多约75wt%,诸如至多约70wt%,合适地至多约65wt%。基于第一组分的总重量,所述多元醇的含量可以为约20~75wt%,合适地25~70wt%,诸如30~65wt%,或在使用这些端值的任何其他组合范围内。
适合用于本发明的单羟基化合物可以具有单官能度。也就是说,所述单羟基化合物中仅有羟基参与反应。合适地,所述单羟基化合物可以包括一种或多种相同或不同的单羟基化合物。合适地,所述单羟基化合物可以包括月桂醇、乙二醇己醚、二乙二醇单丁醚、乙二醇丁醚、丙二醇苯醚、和/或2-乙基己醇等。例如,所述单羟基化合物可以包括丙二醇苯醚。
基于第一组分的总重量,所述单羟基化合物的含量可以为至少约6wt%,合适地至少约7wt%,合适地至少约8wt%,和/或至多约15wt%,诸如至多约12wt%,合适地至多约10wt%。基于第一组分的总重量,所述单羟基化合物的含量可以为约6~15wt%,合适地7~12wt%,诸如8~10wt%,或在使用这些端值的任何其他组合范围内。
在本发明的胶粘剂组合物中,第二组分包括聚氨酯预聚物和异氰酸酯三聚体。所述“聚氨酯预聚物”也可称为聚氨酯聚合物。所述聚氨酯预聚物和异氰酸酯三聚体提供NCO基团。所述聚氨酯预聚物和异氰酸酯三聚体以特定的比例存在于第二组分中。合适地,所述聚氨酯预聚物和异氰酸酯三聚体的重量比可以为3:1至15:1。例如,所述多元醇与单羟基化合物的重量比可以为4:1、5:1、6:1、7:1、8:1、9:1、10:1、11:1、12:1、13:1或14:1。
适合用于本发明的聚氨酯预聚物可以通过异氰酸酯化合物与多元醇反应获得。合适地,所述异氰酸酯化合物可以包括基于芳香族异氰酸酯的化合物,诸如甲苯二异氰酸酯(TDI)和/或二苯基甲烷二异氰酸酯(MDI)。合适地,所述多元醇可以包括聚丁二烯多元醇。所述聚丁二烯多元醇可以包括端羟基。合适地,所述异氰酸酯化合物中的NCO基团与所述多元醇中的OH基团的摩尔比可以为大于1,从而获得NCO基团封端的聚氨酯预聚物。
合适地,所述聚氨酯预聚物可以具有15~20wt%的NCO含量。所述“NCO含量”是指每分子中NCO基团的重量基于聚氨酯预聚物的重量的百分比例。
基于第二组分的总重量,所述聚氨酯预聚物的含量可以为至少约25wt%,合适地至少约30wt%,合适地至少约35wt%,和/或至多约50wt%,诸如至多约45wt%,合适地至多约40wt%。基于第二组分的总重量,所述聚氨酯预聚物的含量可以为约25~50wt%,合适地30~45wt%,诸如35~40wt%,或在使用这些端值的任何其他组合范围内。
适合用于本发明的异氰酸酯三聚体可以包括脂肪族异氰酸酯三聚体。合适地,所述脂肪族异氰酸酯可以包括异氟尔酮二异氰酸酯(IPDI)、六亚甲基二异氰酸酯(HDI)、和/或4,4'-二环己基甲烷二异氰酸酯(HMDI)。例如,所述脂肪族异氰酸酯三聚体可以包括HDI三聚体。
基于第二组分的总重量,所述异氰酸酯三聚体的含量可以为小于约8wt%。例如,基于第二组分的总重量,所述异氰酸酯三聚体的含量至少约3wt%,合适地至少约4wt%,和/或至多约7wt%,诸如至多约6wt%。基于第二组分的总重量,所述异氰酸酯三聚体的含量可以为约3~7wt%,合适地4~6wt%,或在使用这些端值的任何其他组合范围内。
通过第一组分与第二组分中的基团反应,例如,OH基团与NCO基团,根据本发明的胶粘剂组合物提供对基材的有效粘接。因此,第一组分与第二组分的配比可以根据两种基团的摩尔比设定。合适地,第二组分中的NCO基团与第一组分中的OH基团的摩尔比可以为大于1:1。例如,第二组分中的NCO基团与第一组分中的OH基团的摩尔比可以为1.05:1、1.1:1、1.15:1、1.2:1或1.25:1。
根据本发明的胶粘剂组合物还可以包括颜填料和/或添加剂。所述颜填料和/或添加剂可以存在于胶粘剂组合物的第一组分中和/或胶粘剂组合物的第二组分中。
例如,根据本发明的胶粘剂组合物可以包括颜填料。所述颜填料可以包括着色颜料和/或填料,其为胶粘剂提供颜色、效果和/或功能。合适地,所述着色颜料可以包括无机颜料,诸如碳黑,钛白,铁红等,和/或有机颜料。合适地,所述填料可以包括气相二氧化硅、碳酸钙、高岭土、滑石粉、氢氧化铝等。所述颜填料的含量可以为基于第一组分的总重量的35~55wt%;和/或,所述颜填料的含量可以为基于第二组分的总重量的35~55wt%。
根据本发明的胶粘剂组合物可以包括扩链剂。合适的扩链剂的实例可以包括但不限于,二乙二胺(DEDA)、单乙醇胺(MEA)、亚甲基双(N,N-二丁基二苯胺)、异佛尔酮二胺(IPDA)、十二烷基硫醇、叔十二烷基硫醇、1,3-丁二醇、1,4-丁二醇、丙烷-1,2-二醇、1,6-己二醇、聚醚胺或其组合。例如,所述扩链剂可以包括1,4-丁二醇、和/或聚醚胺。所述聚醚胺可以具有200~500的数均分子量。
根据本发明的胶粘剂组合物可以包括偶联剂。合适的偶联剂的实例可以包括但不限于,硅烷偶联剂、钛酸酯偶联剂、铝酸酯偶联剂、双金属偶联剂、磷酸酯偶联剂、硼酸酯偶联剂、铬络合物、其它高级脂肪酸、醇、酯的偶联剂及其组合。例如,所述偶联剂可以包括硅烷偶联剂,诸如氨基硅烷。
根据本发明的胶粘剂组合物可以包括催化剂。合适的催化剂的实例可以包括但不限于,辛酸亚锡(II)、二月桂酸二丁基锡、二乙酸二丁基锡、二甲基咪唑、二氮杂二环(DBU)胺类催化剂、2,2'-二吗啉基二乙基醚及其组合。例如,所述催化剂可以包括二甲基咪唑和/或二氮杂二环(DBU)胺类催化剂。
根据本发明的胶粘剂组合物可以包括抗氧剂。合适的抗氧剂的实例可以包括但不限于,硫代二丙酸二(十三烷基酯)(DTDTDP)、硫代二丙酸二月桂酯(DLTDP)、硫代二丙酸二硬脂基酯(DSTDP)和3,5-二(1,1-二甲基乙基)-4-羟基苯丙酸十八烷基酯(1076)、4,6-二(辛硫甲基)邻甲酚、三(2,4-二叔丁基苯基)亚磷酸酯及其组合。例如,所述抗氧剂可以包括4,6-二(辛硫甲基)邻甲酚。
根据本发明的胶粘剂组合物可以包括除水剂。合适的除水剂的实例可以包括但不限于,甲基二苯基乙氧基硅烷、乙烯基三甲氧基硅烷(VTMO)、乙烯基三乙氧基硅烷、分子筛、对甲苯磺酰基异氰酸酯(p-toulenesulfonylisocyanate,PTSI)、对甲苯磺酰基异氰酸酯(TI)、酸酐酯(例如丙二酸二乙酯和琥珀酸二甲酯)及其组合。例如,所述除水剂可以包括分子筛活化粉,对甲基苯磺酰异氰酸酯(PTSI)。
根据本发明的胶粘剂组合物可以包括增塑剂。合适的增塑剂的实例可以包括但不限于,偏苯三酸三(2-乙基己基)酯(TOTM)、三甲基戊二醇双异丁酸酯、不含邻苯二甲酸酯的C1-C20烷基磺酸苯酚酯、邻苯二甲酸二异壬酯(DINP)、Mesamoll、生物基增塑剂及其组合。例如,所述增塑剂可以包括邻苯二甲酸二异壬酯(DINP)。
根据本发明的胶粘剂组合物可以包括触变剂。合适的触变剂的实例可以包括但不限于,氢化蓖麻油、聚酰胺及其组合。
根据本发明的胶粘剂组合物还可以包括一种或多种其他添加剂。上述添加剂和一种或多种其他添加剂的用量可以由本领域技术人员根据所需性能调整确定。
根据本发明的胶粘剂组合物可以如下制备:
第一组分:将多元醇、单羟基化合物和任选的填料加入反应釜,加热至80℃真空脱水2小时,再冷却至50℃以下;向反应釜中加入任选的添加剂和任选的颜料,真空条件下搅拌均匀,分装密封存储。
第二组分:将聚氨酯预聚物和异氰酸酯三聚体加入反应釜,加入任选的填料和任选的添加剂,在真空条件下分散均匀,分装密封储存。
合适地,第二组分的制备方法还包括:将异氰酸酯化合物和多元醇加入反应釜,在氮气保护下80℃反应2小时,控制反应终点NCO含量为15~20wt%。
本发明还涉及一种经涂覆的基材,包括基材和涂覆于至少部分基材上的上述双组分胶粘剂组合物。所述基材包括未经底涂处理的基材。因此,由上述双份组分胶粘剂组合物所形成的胶层直接接触基材。合适地,所述基材可以包括塑料和/或复合材料。合适的塑料和/或复合材料的实例可以包括但不限于,PP、PP/LGF、SMC、PC/ABS、PMMA/ASA、PC/PET、和/或PVC。合适地,所述基材可以为车辆的一部分,诸如扰流板、尾门等。
将上述双组分胶粘剂组合物涂覆于基材的方法可以包括:将第一组分和第二组分按照确定的比例混合均匀,然后涂覆于第一基材之上,再将第一基材上的粘合剂组合物与第二基材接触。所述“第一基材”和“第二基材”可以为相同的材料或不同的材料,如PP、PP/LGF、SMC、PC/ABS、PMMA/ASA、PC/PET、和/或PVC。
所述经涂覆的基材可以通过暴露于固化条件一定时间进行固化。例如,根据本发明的胶粘剂组合物可以在室温下在3~7天内固化,所述室温可以为15~30℃。或者,根据本发明的胶粘剂组合物可以在升高温度下进行固化,如,通过对流热或微波加热。例如,根据本发明的胶粘剂组合物可以在80℃下在3小时固化。固化后,根据本发明的胶粘剂组合物所形成的胶层的厚度可以为0.1~4mm。
实施例
提供下述实施例进一步阐述本发明,但不应认为其将本发明限制在实施例所述的细节。除另有说明,下述实施例中所有的份数和百分数均以重量计。
实施例:
第一组分
根据表1中所列成分和重量比例制备实施例的双组分胶粘剂组合物的第一组分A1-A3。具体包括:
将聚丁二烯多元醇、其他多元醇、单羟基化合物和填料加入反应釜,加热至80℃真空脱水2小时,再冷却至50℃以下;向反应釜中加入扩链剂、偶联剂、催化剂、除水剂、抗氧剂和填料,真空条件下搅拌均匀,分装密封存储。
表1.实施例的双组分胶粘剂组合物:第一组分A1-A3
a选自芳香族聚醚多元醇、脂肪族聚醚多元醇,含侧基的二聚酸聚酯多元醇、油脂化学多元醇和聚碳酸酯多元醇中的一种或多种;
b选自月桂醇、乙二醇己醚、二乙二醇单丁醚、乙二醇丁醚、丙二醇苯醚和2-乙基己醇中的一种或多种;
c 1,4-丁二醇和聚醚胺;
d二甲基咪唑和二氮杂二环(DBU)胺类催化剂;
e 4,6-二(辛硫甲基)邻甲酚;
f氨基硅烷;
g分子筛活化粉;和
h碳酸钙。
第二组分
根据表2中所列成分和重量比例制备实施例的双组分胶粘剂组合物的第二组分B1-B2。具体包括:
将聚氨酯预聚物和异氰酸酯三聚体加入反应釜,加入填料、增塑剂、抗氧剂和除水剂,在真空条件下分散均匀,分装密封储存。
表2.实施例的双组分胶粘剂组合物:第二组分B1-B2
B1 | B2 | |
异氰酸酯预聚物a | 39% | 39% |
异氰酸酯三聚体b | 4% | 6% |
增塑剂c | 9% | 7% |
抗氧剂d | 0.2% | 0.2% |
填料e | 47.5% | 47.5% |
除水剂f | 0.30% | 0.30% |
总量 | 100.00% | 100.00% |
a由甲苯二异氰酸酯(TDI)或二苯基甲烷二异氰酸酯(MDI)与聚丁二烯多元醇反应获得,NCO含量为15~20wt%;
b脂肪族异氰酸酯三聚体,所述脂肪族异氰酸酯选自异氟尔酮二异氰酸酯(IPDI)、六亚甲基二异氰酸酯(HDI)和4,4'-二环己基甲烷二异氰酸酯(HMDI)中的一种或多种;
c邻苯二甲酸二异壬酯(DINP);
d 4,6-二(辛硫甲基)邻甲酚;
e气相二氧化硅和碳酸钙;和
f对甲基苯磺酰异氰酸酯。
对比例1-3:
第一组分
根据表3中所列成分和重量比例制备对比例的双组分胶粘剂组合物的第一组分CA1-CA3。具体包括:
将聚丁二烯多元醇、其他多元醇、单羟基化合物和填料加入反应釜,加热至80℃真空脱水2小时,再冷却至50℃以下;向反应釜中加入扩链剂、偶联剂、催化剂、除水剂、增塑剂、抗氧剂和填料,真空条件下搅拌均匀,分装密封存储。
表3.对比例的双组分胶粘剂组合物:第一组分CA1-CA3
CA1 | CA2 | CA3 | |
聚丁二烯多元醇 | 24% | 23% | 25% |
其他多元醇a | 19% | 25% | 21% |
单羟基化合物b | 10% | 5% | 0% |
扩链剂c | 3.4% | 3.8% | 5% |
催化剂d | 0.6% | 0.6% | 0.6% |
抗氧剂e | 0.1% | 0.1% | 0.1% |
偶联剂f | 1.0% | 1.0% | 1.0% |
除水剂g | 2.5% | 2.5% | 2.5% |
增塑剂h | 0.0% | 0.0% | 6% |
填料i | 39.4% | 39.0% | 38.8% |
总量 | 100.00% | 100.00% | 100.00% |
a选自芳香族聚醚多元醇、脂肪族聚醚多元醇,含侧基的二聚酸聚酯多元醇、油脂化学多元醇和聚碳酸酯多元醇中的一种或多种;
b选自月桂醇、乙二醇己醚、二乙二醇单丁醚、乙二醇丁醚、丙二醇苯醚和2-乙基己醇中的一种或多种;
c 1,4-丁二醇和聚醚胺;
d二甲基咪唑和二氮杂二环(DBU)胺类催化剂;
e 4,6-二(辛硫甲基)邻甲酚;
f 氨基硅烷;
g 分子筛活化粉;
h邻苯二甲酸二异壬酯(DINP);和
i碳酸钙。
第二组分
根据表4中所列成分和重量比例制备对比例的双组分胶粘剂组合物的第二组分CB1-CB3。具体包括:
将聚氨酯预聚物和异氰酸酯三聚体或异氰酸酯二聚体加入反应釜,加入填料、增塑剂、抗氧剂、除水剂、气相二氧化硅,在真空条件下分散均匀,分装密封储存。
表4.对比例的双组分胶粘剂组合物:第二组分CB1-CB3
CB1 | CB2 | CB3 | |
异氰酸酯预聚物a | 39% | 39% | 38% |
异氰酸酯三聚体b | 0% | 8% | 3% |
异氰酸酯二聚体c | 6% | 0% | 0% |
增塑剂d | 7% | 5% | 11% |
抗氧剂e | 0.2% | 0.2% | 0.2% |
填料f | 47.5% | 47.5% | 47.5% |
除水剂g | 0.30% | 0.30% | 0.30% |
总量 | 100.00% | 100.00% | 100.00% |
a由甲苯二异氰酸酯(TDI)或二苯基甲烷二异氰酸酯(MDI)与聚丁二烯多元醇反应获得,NCO含量为15~20wt%;
b脂肪族异氰酸酯三聚体,所述脂肪族异氰酸酯选自异氟尔酮二异氰酸酯(IPDI)、六亚甲基二异氰酸酯(HDI)和4,4'-二环己基甲烷二异氰酸酯(HMDI)中的一种或多种;
c脂肪族异氰酸酯二聚体,所述脂肪族异氰酸酯选自异氟尔酮二异氰酸酯(IPDI)、六亚甲基二异氰酸酯(HDI)和4,4'-二环己基甲烷二异氰酸酯(HMDI)中的一种或多种;
d邻苯二甲酸二异壬酯(DINP);
e 4,6-二(辛硫甲基)邻甲酚;
f气相二氧化硅和碳酸钙;和
g对甲基苯磺酰异氰酸酯。
将实施例和对比例的双组分胶粘剂组合物通过如下方式涂覆于基材并固化:
第一组分A1-A3和CA1-CA3和第二组分B1-B2和CB1-CB3按照NCO:OH摩尔比为1.1:1~1.05:1配比混合均匀,然后涂覆于在第一基材之上,再将第一基材上的粘合剂组合物与第二基材接触。所述第一基材和第二基材为相同材料,为PC/ABS或PMMA/ASA。
将涂覆于基材的双组分胶粘剂组合物置于环境温度和湿度下(23℃/50%RH的标准环境中)7天,得到固化的胶层。对固化后的胶层进行拉伸强度和断裂伸长率测试。
拉伸强度和断裂伸长率测试:
按照标准GB/T 528-2009测试。试样在23℃/50%RH的标准环境中放置7d后用拉力机测试,测试速度为200mm/min。
剪切强度测试:
用酒精擦拭基材表面灰尘或污渍,将混合均匀后的双组份粘合剂样品施胶在基材粘接部位,用夹子固定压合,固定粘接面积(25mm×12.5mm)和控制胶层厚度1mm。样件在标准环境(23℃/50%RH)中放置7d后按照标准GB/T7124用拉力机测试剪切强度,测试速度5mm/min。
破坏形式:
按照剪切强度实验测试方法,观察断裂后基材样件在胶层粘接部分是界面破坏(AF)还是内聚破坏(CF),破坏结果用百分比表示。
测试结果如下表所示:
表5.实施例和对比例的测试结果
参照以上实验结果可知,对比例在PMMA/ASA基材上均无法形成有效粘接,粘接破坏形式均为界面破坏。而本发明实施例在PC/ABS和PMMA/ASA基材上均形成有效粘接,粘接破坏形式均为内聚破坏,其中进行优化后的胶粘剂(如单羟基化合物的比例、多元醇的组合),可在PMMA/ASA基材上得到100%内聚破坏形式(即,CF)。
另外,对实施例A1B2进行了耐高温测试和耐水老化测试。
耐高温测试:
用酒精擦拭基材表面灰尘或污渍,将混合均匀后的双组份粘合剂样品施胶在基材粘接部位,用夹子固定压合,固定粘接面积(25mm×12.5mm)和控制胶层厚度1mm。样件在标准环境(23℃/50%RH)中放置3d,然后在90℃条件下放置7d,再按照标准GB/T7124用拉力机测试剪切强度,测试速度5mm/min。
破坏形式:
按照剪切强度实验测试方法,观察断裂后基材样件在胶层粘接部分是界面破坏(AF)还是内聚破坏(CF),破坏结果用百分比表示。
测试结果:
在PC/ABS基材上的剪切强度为2.68MPa,破坏形式为100%内聚破坏;在PMMA/ASA基材上的剪切强度为2.38MPa,破坏形式为100%内聚破坏。
耐水老化测试:
用酒精擦拭基材表面灰尘或污渍,将混合均匀后的双组份粘合剂样品施胶在基材粘接部位,用夹子固定压合,固定粘接面积(25mm×12.5mm)和控制胶层厚度1mm。样件在标准环境(23℃/50%RH)中放置3d,然后在40℃水浴中放置14d,再按照标准GB/T7124用拉力机测试剪切强度,测试速度5mm/min。
破坏形式:
按照剪切强度实验测试方法,观察断裂后基材样件在胶层粘接部分是界面破坏(AF)还是内聚破坏(CF),破坏结果用百分比表示。
测试结果:
在PC/ABS基材上的剪切强度为2.46MPa,破坏形式为100%内聚破坏;在PMMA/ASA基材上的剪切强度为2.30MPa,破坏形式为100%内聚破坏。
因此,根据本发明的双组分胶粘剂还具备优异的耐高温性和耐水老化性。
尽管已经解释和描述了本发明的特定方面,对本领域技术人员来说很明显的是可做出多种其它改变和修饰而不会背离本发明的精神和范围。因此所附权利要求意图涵盖落入本发明范围内的所有这些改变和修饰。
Claims (24)
1.一种双组分胶粘剂组合物,包括第一组分和第二组分,其中第一组分包括多元醇和单羟基化合物,和第二组分包括聚氨酯预聚物和异氰酸酯三聚体。
2.如权利要求1所述的双组分胶粘剂组合物,其中第一组分中所述多元醇与单羟基化合物的重量比为2:1至11:1。
3.如权利要求1或2所述的双组分胶粘剂组合物,其中第二组分中所述聚氨酯预聚物与异氰酸酯三聚体的重量比为3:1至15:1。
4.如权利要求1-3中任一项所述的双组分胶粘剂组合物,其中所述多元醇的平均官能度为2~4。
5.如权利要求1-4中任一项所述的双组分胶粘剂组合物,其中所述多元醇的分子量为400~5000。
6.如权利要求1-5中任一项所述的双组分胶粘剂组合物,其中所述多元醇包括基于第一组分中多元醇总重量的40~90wt%的聚丁二烯多元醇。
7.如权利要求1-6中任一项所述的双组分胶粘剂组合物,其中所述单羟基化合物具有单官能度。
8.如权利要求1-7中任一项所述的双组分胶粘剂组合物,其中所述单羟基化合物包括月桂醇、乙二醇己醚、二乙二醇单丁醚、乙二醇丁醚、丙二醇苯醚、和/或2-乙基己醇等。
9.如权利要求1-8中任一项所述的双组分胶粘剂组合物,其中所述聚氨酯预聚物的NCO含量为基于聚氨酯预聚物的总重量的15~20wt%。
10.如权利要求1-9中任一项所述的双组分胶粘剂组合物,其中所述聚氨酯预聚物由包括芳香族异氰酸酯化合物和聚丁二烯多元醇的混合物反应制得。
11.如权利要求1-10中任一项所述的双组分胶粘剂组合物,其中所述异氰酸酯三聚体包括脂肪族异氰酸酯三聚体。
12.如权利要求1-11中任一项所述的双组分胶粘剂组合物,其中所述异氰酸酯三聚体包括HDI三聚体。
13.如权利要求1-12中任一项所述的双组分胶粘剂组合物,其中所述单羟基化合物的含量为基于第一组分总重量的6~15wt%。
14.如权利要求1-13中任一项所述的双组分胶粘剂组合物,其中所述异氰酸酯三聚体的含量为基于第二组分总重量的小于8wt%。
15.如权利要求1-14中任一项所述的双组分胶粘剂组合物,其中第二组分中的NCO基团与第一组分中的OH基团的摩尔比为大于1:1。
16.如权利要求1-15中任一项所述的双组分胶粘剂组合物,其中所述第一组分和第二组分中的每个的粘度为室温下40000-60000cps。
17.如权利要求1-16中任一项所述的双组分胶粘剂组合物,其中所述双组分胶粘剂组合物适用于塑料和/或复合材料。
18.一种经涂覆的基材,包括基材和涂覆于至少部分基材上的如权利要求1-17中任一项所述的双组分胶粘剂组合物。
19.如权利要求18所述的经涂覆的基材,其中所述基材未经底涂处理。
20.如权利要求18或19所述的经涂覆的基材,其中所述基材包括塑料和/或复合材料。
21.如权利要求20所述的经涂覆的基材,其中所述基材包括PP、PP/LGF、SMC、PC/ABS、PMMA/ASA、PC/PET、和/或PVC。
22.如权利要求18-21中任一项所述的经涂覆的基材,其中所述基材为车辆的一部分。
23.如权利要求22所述的经涂覆的基材,其中所述基材包括扰流板和/或尾门。
24.如权利要求18-23所述的经涂覆的基材,其中所述双组分胶粘剂组合物所形成的固化层的厚度为0.1~4mm。
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