CN113943414A - 一种无溶剂双组份聚氨酯胶黏剂的工艺方法 - Google Patents
一种无溶剂双组份聚氨酯胶黏剂的工艺方法 Download PDFInfo
- Publication number
- CN113943414A CN113943414A CN202111258605.7A CN202111258605A CN113943414A CN 113943414 A CN113943414 A CN 113943414A CN 202111258605 A CN202111258605 A CN 202111258605A CN 113943414 A CN113943414 A CN 113943414A
- Authority
- CN
- China
- Prior art keywords
- solvent
- free
- polyurethane adhesive
- hydroxyl
- polymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000853 adhesive Substances 0.000 title claims abstract description 51
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 51
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 41
- 239000004814 polyurethane Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000008569 process Effects 0.000 title claims abstract description 13
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 32
- 229920000642 polymer Polymers 0.000 claims abstract description 32
- 229920006158 high molecular weight polymer Polymers 0.000 claims abstract description 16
- 230000009477 glass transition Effects 0.000 claims abstract description 14
- 239000002904 solvent Substances 0.000 claims abstract description 9
- 239000012940 solvent-free polyurethane adhesive Substances 0.000 claims abstract description 9
- 238000013461 design Methods 0.000 claims abstract description 6
- 239000004593 Epoxy Substances 0.000 claims abstract description 5
- 150000001875 compounds Chemical class 0.000 claims abstract description 5
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical group C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 8
- 239000012948 isocyanate Substances 0.000 claims description 8
- 150000002513 isocyanates Chemical class 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 238000007142 ring opening reaction Methods 0.000 claims description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical compound CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 claims description 4
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
- -1 hydroxyl compound Chemical class 0.000 claims description 4
- MUTGBJKUEZFXGO-OLQVQODUSA-N (3as,7ar)-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione Chemical compound C1CCC[C@@H]2C(=O)OC(=O)[C@@H]21 MUTGBJKUEZFXGO-OLQVQODUSA-N 0.000 claims description 3
- OUPZKGBUJRBPGC-UHFFFAOYSA-N 1,3,5-tris(oxiran-2-ylmethyl)-1,3,5-triazinane-2,4,6-trione Chemical compound O=C1N(CC2OC2)C(=O)N(CC2OC2)C(=O)N1CC1CO1 OUPZKGBUJRBPGC-UHFFFAOYSA-N 0.000 claims description 3
- PLDLPVSQYMQDBL-UHFFFAOYSA-N 2-[[3-(oxiran-2-ylmethoxy)-2,2-bis(oxiran-2-ylmethoxymethyl)propoxy]methyl]oxirane Chemical compound C1OC1COCC(COCC1OC1)(COCC1OC1)COCC1CO1 PLDLPVSQYMQDBL-UHFFFAOYSA-N 0.000 claims description 3
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 3
- OEOIWYCWCDBOPA-UHFFFAOYSA-N 6-methyl-heptanoic acid Chemical compound CC(C)CCCCC(O)=O OEOIWYCWCDBOPA-UHFFFAOYSA-N 0.000 claims description 3
- XZOYHFBNQHPJRQ-UHFFFAOYSA-N 7-methyloctanoic acid Chemical compound CC(C)CCCCCC(O)=O XZOYHFBNQHPJRQ-UHFFFAOYSA-N 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- GTTSNKDQDACYLV-UHFFFAOYSA-N Trihydroxybutane Chemical compound CCCC(O)(O)O GTTSNKDQDACYLV-UHFFFAOYSA-N 0.000 claims description 3
- 238000007334 copolymerization reaction Methods 0.000 claims description 3
- 239000003999 initiator Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000010526 radical polymerization reaction Methods 0.000 claims description 3
- 150000003254 radicals Chemical class 0.000 claims description 3
- 239000011347 resin Substances 0.000 abstract description 7
- 229920005989 resin Polymers 0.000 abstract description 7
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 abstract description 3
- 238000012643 polycondensation polymerization Methods 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 description 3
- YXRKNIZYMIXSAD-UHFFFAOYSA-N 1,6-diisocyanatohexane Chemical compound O=C=NCCCCCCN=C=O.O=C=NCCCCCCN=C=O.O=C=NCCCCCCN=C=O YXRKNIZYMIXSAD-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
- C08G18/622—Polymers of esters of alpha-beta ethylenically unsaturated carboxylic acids
-
- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3212—Polyhydroxy compounds containing cycloaliphatic groups
-
- 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
- C08G18/30—Low-molecular-weight compounds
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3819—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen
- C08G18/3842—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen containing heterocyclic rings having at least one nitrogen atom in the ring
- C08G18/3851—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen containing heterocyclic rings having at least one nitrogen atom in the ring containing three nitrogen atoms in the ring
- C08G18/3853—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen containing heterocyclic rings having at least one nitrogen atom in the ring containing three nitrogen atoms in the ring containing cyanurate and/or isocyanurate groups
-
- 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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/6505—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen the low-molecular compounds being compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6511—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen the low-molecular compounds being compounds of group C08G18/32 or polyamines of C08G18/38 compounds of group C08G18/3203
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polyurethanes Or Polyureas (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
本发明公开了一种无溶剂双组份聚氨酯胶黏剂的工艺方法,包括以下步骤:步骤一、高玻璃化温度含羟基聚合物的制备,通过分子结构设计分别制备出高玻璃化温度的无溶剂含羟基聚合物和无溶剂的高分子量聚合物;步骤二、无溶剂高分子量聚合物的制备;步骤三、无溶剂聚氨酯胶黏剂的配方优化。该无溶剂双组份聚氨酯胶黏剂的工艺方法利用环氧基团与羧基的开环反应来制备无溶剂的羟基树脂,与传统的缩合聚合方法制备无溶剂树脂相比,这种方法可以灵活的将各类环氧化合物及羧基化合物进行组合以获得理想的分子结构,同时有效的降低了羟基树脂的分子量,更容易实现无溶剂化。
Description
技术领域
本发明涉及胶黏剂技术领域,具体为一种无溶剂双组份聚氨酯胶黏剂的工艺方法。
背景技术
在新基建建设所涉及的电子器件、新能源汽车、轨道列车等领域,高性能胶黏剂起着举足轻重的作用。电子器件的封装与散热,汽车及轨道列车的焊接、涂装、装配以及内饰等各个制造环节,都离不开高端胶黏剂的使用。胶黏剂在这些领域发挥着粘接、密封、传导、减震,甚至是作为部件结构基体,已成为不可或缺的一部分。随着人们对环保、高性能新材料的要求愈加严格,聚氨酯胶黏剂的技术提升要求已十分迫切。无溶剂胶黏剂是一种不用任何溶剂即可进行使用的胶黏剂,是环保型胶黏剂的重要品种之一。
目前无溶剂聚氨酯胶黏剂的初粘力、粘接强度、耐热性等依然是困扰其应用的技术难题。本发明拟解决的关键问题有以下几个方面:
1)实现聚氨酯胶黏剂的无溶剂化,核心在于开发制备无溶剂羟基聚合物的技术,这是聚氨酯胶黏剂对环保的要求;该羟基聚合物需满足以下几点要求:无溶剂,固含达到96%以上;低粘度,以利于施工;带有一定数量的羟基官能团,以实现后期的固化;这对羟基聚合物的分子结构设计提出了很高的要求。
2)提高聚氨酯胶黏剂的初粘力,聚氨酯胶黏剂所采用的含羟基组分和含异氰酸酯组分均为低分子量聚合物,均不具备良好的初粘力;如何通过科学的组分构成和分子结构设计提高聚氨酯胶黏剂的初粘力,是需要解决的一大技术难题。
3)聚氨酯胶黏剂的耐热性有待提高,耐热性的提高需要在分子结构中引入耐热的环状刚性结构如饱和苯环、氮杂环等;如何将这些耐热性的分子结构引入聚氨酯胶黏剂体系中以提高其耐热性,是本发明拟解决的另一关键问题。
发明内容
本发明的目的在于提供一种无溶剂双组份聚氨酯胶黏剂的工艺方法,以解决上述背景技术中提出的问题。
为实现上述目的,本发明提供如下技术方案:一种无溶剂双组份聚氨酯胶黏剂的工艺方法,包括以下步骤:
步骤一、高玻璃化温度含羟基聚合物的制备,通过分子结构设计分别制备出高玻璃化温度的无溶剂含羟基聚合物和无溶剂的高分子量聚合物;
步骤二、无溶剂高分子量聚合物的制备,利用聚合物共混技术,将高玻璃化温度的羟基聚合物和高分子量聚合物进行搭配,实现聚氨酯胶黏剂良好的初粘力;
步骤三、无溶剂聚氨酯胶黏剂的配方优化,选择合适的含异氰酸酯组分、助剂及填料,合理优化聚氨酯胶黏剂的配方,制备出满足要求的无溶剂聚氨酯胶黏剂。
进一步的,所述步骤一高玻璃化温度含羟基聚合物的制备是将刚性分子结构如氮杂环、六氢化苯环引入无溶剂羟基聚合物,通过刚性分子结构的引入提高聚氨酯胶黏剂的耐热性和初粘力。
进一步的,所述刚性分子结构的引入方式设置有两种,
a)采用分子结构刚性的异氰尿酸三缩水甘油酯与小分子一元酸(异辛酸、异壬酸等)进行开环反应,获得带有氮杂环结构的无溶剂羟基聚合物;
b)采用六氢苯酐与一元醇反应,获得具有六氢化苯环结构的一元酸,而后将其与三羟基甲基丙烷三缩水甘油醚、季戊四醇四缩水甘油醚等环氧化合物进行开环反应,获得带有六氢化苯环结构的无溶剂羟基化合物。
进一步的,所述步骤二无溶剂高分子量聚合物的制备是根据聚氨酯胶黏剂羟基组分的要求,利用自由基聚合技术,在引发剂的存在下,将丙烯酸异辛酯、丙烯酸丁酯和丙烯酸羟乙酯进行自由基共聚合,制备出无溶剂高分子量聚合物。
进一步的,所述步骤三中含异氰酸酯组分包含无溶剂异氰酸酯固化剂HDI三聚体、HDI缩二脲和PAPI。
与现有技术相比,本发明的有益效果是:
1、本发明利用环氧基团与羧基的开环反应来制备无溶剂的羟基树脂。与传统的缩合聚合方法制备无溶剂树脂相比,这种方法可以灵活的将各类环氧化合物及羧基化合物进行组合以获得理想的分子结构,同时有效的降低了羟基树脂的分子量,更容易实现无溶剂化。
2、本发明将饱和苯环、氮杂环结构引入无溶剂羟基树脂体系中,提高了羟基树脂的玻璃化温度,改善了聚氨酯胶黏剂的耐热性能,据相关研究报导,采用氮杂环、饱和苯环的树脂体系所制备的热固性树脂,其耐热温度可在200℃以上,在聚氨酯胶黏剂中引入这种刚性结构,将极大地改善其耐热性能。
3、本发明巧妙设计了无溶剂的高分子量聚合物,并在其分子链上引入了羟基基团。该聚合物的引入可显著改善聚氨酯胶黏剂的初粘力,同时因此参与了聚氨酯的固化反应,对粘接强度、耐热性能没有造成不利的影响。这种不同性能聚合物的共混技术创新性地解决了聚氨酯胶黏剂初粘力不佳的问题。
附图说明
图1为本发明工艺流程示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
请参阅图1,本发明提供一种技术方案:一种无溶剂双组份聚氨酯胶黏剂的工艺方法,包括以下步骤:
步骤一、高玻璃化温度含羟基聚合物的制备,将刚性分子结构如氮杂环、六氢化苯环引入无溶剂羟基聚合物,通过刚性分子结构的引入提高聚氨酯胶黏剂的耐热性和初粘力。
刚性分子结构的引入方式设置有两种,
a)采用分子结构刚性的异氰尿酸三缩水甘油酯与小分子一元酸(异辛酸、异壬酸等)进行开环反应,获得带有氮杂环结构的无溶剂羟基聚合物;
b)采用六氢苯酐与一元醇反应,获得具有六氢化苯环结构的一元酸,而后将其与三羟基甲基丙烷三缩水甘油醚、季戊四醇四缩水甘油醚等环氧化合物进行开环反应,获得带有六氢化苯环结构的无溶剂羟基化合物。
这两种方式均可获得分子链刚性、玻璃化温度较高的羟基聚合物,这些刚性基团的引入对于提高聚氨酯胶黏剂的耐热性和初粘力,都是极为有利的;
步骤二、无溶剂高分子量聚合物的制备,分子量较大的聚合物具有较高的初粘力,借鉴透明胶的组成成分(聚丙烯酸异辛酯或丙烯酸丁酯),根据聚氨酯胶黏剂羟基组分的要求,利用自由基聚合技术,在引发剂的存在下,将丙烯酸异辛酯、丙烯酸丁酯和丙烯酸羟乙酯进行自由基共聚合,制备出无溶剂高分子量聚合物;利用该聚合物高分子量的特点提供聚氨酯胶黏剂良好的初粘力,同时由于其带有羟基,可以参与聚氨酯胶黏剂的固化,能够获得良好的粘接强度;
步骤三、无溶剂聚氨酯胶黏剂的配方优化,首先进行聚氨酯胶黏剂固化剂的性能测试,选择一款制备好的高玻璃化温度的无溶剂羟基聚合物,分别与常用的无溶剂异氰酸酯固化剂HDI三聚体、HDI缩二脲、PAPI等,配合填料、助剂、催化剂等制备无溶剂聚氨酯胶黏剂,考察不同固化剂的初粘力、粘接强度、固化速度、耐热性等指标;HDI三聚体和HDI缩二脲具有更好的柔韧性和耐候性,PAPI则具有更好的硬度和更快的固化速度。可依此根据客户的要求对固化剂进行优化筛选;
其次,考察高分子量聚合物的引入量对聚氨酯胶黏剂初粘力的影响,确定合适的高玻璃化温度羟基化合物与高分子量聚合物的比例,并优化催化剂、助剂、填料的选型和胶黏剂的制备工艺。制备出初粘力好、耐热性优异的无溶剂聚氨酯胶黏剂。
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。
Claims (5)
1.一种无溶剂双组份聚氨酯胶黏剂的工艺方法,其特征在于,包括以下步骤:
步骤一、高玻璃化温度含羟基聚合物的制备,通过分子结构设计分别制备出高玻璃化温度的无溶剂含羟基聚合物和无溶剂的高分子量聚合物;
步骤二、无溶剂高分子量聚合物的制备,利用聚合物共混技术,将高玻璃化温度的羟基聚合物和高分子量聚合物进行搭配,实现聚氨酯胶黏剂良好的初粘力;
步骤三、无溶剂聚氨酯胶黏剂的配方优化,选择合适的含异氰酸酯组分、助剂及填料,合理优化聚氨酯胶黏剂的配方,制备出满足要求的无溶剂聚氨酯胶黏剂。
2.根据权利要求1所述的一种无溶剂双组份聚氨酯胶黏剂的工艺方法,其特征在于:所述步骤一高玻璃化温度含羟基聚合物的制备是将刚性分子结构如氮杂环、六氢化苯环引入无溶剂羟基聚合物,通过刚性分子结构的引入提高聚氨酯胶黏剂的耐热性和初粘力。
3.根据权利要求2所述的一种无溶剂双组份聚氨酯胶黏剂的工艺方法,其特征在于:所述刚性分子结构的引入方式设置有两种,
a)采用分子结构刚性的异氰尿酸三缩水甘油酯与小分子一元酸(异辛酸、异壬酸等)进行开环反应,获得带有氮杂环结构的无溶剂羟基聚合物;
b)采用六氢苯酐与一元醇反应,获得具有六氢化苯环结构的一元酸,而后将其与三羟基甲基丙烷三缩水甘油醚、季戊四醇四缩水甘油醚等环氧化合物进行开环反应,获得带有六氢化苯环结构的无溶剂羟基化合物。
4.根据权利要求1所述的一种无溶剂双组份聚氨酯胶黏剂的工艺方法,其特征在于:所述步骤二无溶剂高分子量聚合物的制备是根据聚氨酯胶黏剂羟基组分的要求,利用自由基聚合技术,在引发剂的存在下,将丙烯酸异辛酯、丙烯酸丁酯和丙烯酸羟乙酯进行自由基共聚合,制备出无溶剂高分子量聚合物。
5.根据权利要求1所述的一种无溶剂双组份聚氨酯胶黏剂的工艺方法,其特征在于:所述步骤三中含异氰酸酯组分包含无溶剂异氰酸酯固化剂HDI三聚体、HDI缩二脲和PAPI。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111258605.7A CN113943414A (zh) | 2021-10-27 | 2021-10-27 | 一种无溶剂双组份聚氨酯胶黏剂的工艺方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111258605.7A CN113943414A (zh) | 2021-10-27 | 2021-10-27 | 一种无溶剂双组份聚氨酯胶黏剂的工艺方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN113943414A true CN113943414A (zh) | 2022-01-18 |
Family
ID=79332809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202111258605.7A Pending CN113943414A (zh) | 2021-10-27 | 2021-10-27 | 一种无溶剂双组份聚氨酯胶黏剂的工艺方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113943414A (zh) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108587550A (zh) * | 2018-04-10 | 2018-09-28 | 广东中粘新材料科技有限公司 | 一种应用于汽车行业的双组分无溶剂反应型聚氨酯热熔胶及其使用方法 |
CN109796363A (zh) * | 2018-12-06 | 2019-05-24 | 华南理工大学 | 一种多羟基低粘度杂臂星形羟基树脂及其制备方法与应用 |
JP2019178279A (ja) * | 2018-03-30 | 2019-10-17 | 東ソー株式会社 | 2液型ポリウレタン樹脂形成性組成物、2液型ポリウレタン樹脂接着剤組成物 |
CN111675803A (zh) * | 2020-07-28 | 2020-09-18 | 清远高新华园科技协同创新研究院有限公司 | 一种含有刚性环状结构的无溶剂羟基树脂及其制备方法 |
CN111825627A (zh) * | 2020-07-28 | 2020-10-27 | 清远高新华园科技协同创新研究院有限公司 | 一种高固体份羟基树脂的制备方法 |
-
2021
- 2021-10-27 CN CN202111258605.7A patent/CN113943414A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019178279A (ja) * | 2018-03-30 | 2019-10-17 | 東ソー株式会社 | 2液型ポリウレタン樹脂形成性組成物、2液型ポリウレタン樹脂接着剤組成物 |
CN108587550A (zh) * | 2018-04-10 | 2018-09-28 | 广东中粘新材料科技有限公司 | 一种应用于汽车行业的双组分无溶剂反应型聚氨酯热熔胶及其使用方法 |
CN109796363A (zh) * | 2018-12-06 | 2019-05-24 | 华南理工大学 | 一种多羟基低粘度杂臂星形羟基树脂及其制备方法与应用 |
CN111675803A (zh) * | 2020-07-28 | 2020-09-18 | 清远高新华园科技协同创新研究院有限公司 | 一种含有刚性环状结构的无溶剂羟基树脂及其制备方法 |
CN111825627A (zh) * | 2020-07-28 | 2020-10-27 | 清远高新华园科技协同创新研究院有限公司 | 一种高固体份羟基树脂的制备方法 |
Non-Patent Citations (1)
Title |
---|
冯新德: "《高分子辞典》", 30 June 1998, 中国石化出版社 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5073601A (en) | Composition of butadiene/polar comonomer copolymer, aromatic reactive end group-containing prepolymer and epoxy resin | |
US5202390A (en) | Butadiene/polar comonomer copolymer and aromatic reactive end group-containing prepolymer | |
CN101580686B (zh) | 一种低密度高抗冲击性环氧树脂灌封胶及其制备方法 | |
CN102604577A (zh) | 一种柔性可调环氧胶黏剂及其制备方法 | |
CN101629062A (zh) | 聚酰亚胺-环氧树脂粘合剂及其制备和应用 | |
CN112341973B (zh) | 一种双组份常温固化环氧树脂弹性体组合物及制备方法 | |
CN103131370B (zh) | 1,3-双(2,4-二氨基苯氧基)苯型耐高温环氧胶粘剂及其制备方法 | |
CN110079189B (zh) | 一种环氧树脂涂料及其制备方法 | |
CN111040715A (zh) | 一种单组分反应型聚氨酯热熔胶及其制备方法 | |
CN113943414A (zh) | 一种无溶剂双组份聚氨酯胶黏剂的工艺方法 | |
CN113999637A (zh) | 一种单组份低温环氧胶黏剂及其制备方法 | |
CN113736401A (zh) | 一种高耐热单组份胶黏剂及其制备方法 | |
CN113831886A (zh) | 一种粘接低表面能材料的聚氨酯热熔胶及其制备方法 | |
CN113817289A (zh) | 一种高韧性透明脂环族环氧树脂组合物 | |
CN101654585A (zh) | 耐高温高频三防涂料 | |
CN101104784A (zh) | 复合层压板耐高温粘合剂及制备方法 | |
CN114292376A (zh) | 一种聚氨酯反应促进剂及其制备方法和应用 | |
CN106543957A (zh) | 双组分增韧型聚二苯基硼硅氧烷胶黏剂及其制备和应用方法 | |
CN111675803A (zh) | 一种含有刚性环状结构的无溶剂羟基树脂及其制备方法 | |
CN116875246A (zh) | 一种低温固化环氧胶粘剂及其制备方法 | |
CN110922926A (zh) | 一种低温固化的单组份透明环氧胶水及其制备方法和应用 | |
CN110607064A (zh) | 树脂组合物、预浸料及相关基板 | |
CN117903716B (zh) | 一种柔性粘合反光材料及其制备方法 | |
CN116836666B (zh) | 无溶剂型双组分环氧粘合剂的制备方法 | |
CN111218110A (zh) | 一种氰酸酯基体树脂及其制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220118 |