CN110669467B - 用于布布复合的二液型高剥离聚氨酯粘合剂及其制备方法 - Google Patents

用于布布复合的二液型高剥离聚氨酯粘合剂及其制备方法 Download PDF

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CN110669467B
CN110669467B CN201911110785.7A CN201911110785A CN110669467B CN 110669467 B CN110669467 B CN 110669467B CN 201911110785 A CN201911110785 A CN 201911110785A CN 110669467 B CN110669467 B CN 110669467B
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吕少波
姜海龙
梁高山
訾少宝
张泽绮
刘少勇
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Abstract

本发明涉及一种用于布布复合的二液型高剥离聚氨酯粘合剂及其制备方法，所述聚氨酯粘合剂的原料配方包括以下组分：聚酯多元醇A、聚酯多元醇B、聚酯多元醇C、抗氧剂、扩链剂、交联剂、溶剂、异氰酸酯、催化剂、终止剂，其中，所述聚酯多元醇A、聚酯多元醇B的数均分子量分别为2000~3500；所述聚酯多元醇C的数均分子量为100~300。本发明的聚氨酯粘合剂配方中采用数均分子量分别为2000~3500的聚酯多元醇A和聚酯多元醇B为主多元醇原料，配合少量的数均分子量为100~300的聚酯多元醇C与异氰酸酯反应，并反应原料中还添加了扩链剂、交联剂等其他物质，最终制备得到的二液型聚氨酯粘合剂用于布布复合具有初始粘强度高，还具有高剥离性，最终牢度效果大大提高。

Description

用于布布复合的二液型高剥离聚氨酯粘合剂及其制备方法
技术领域
本发明涉及二液型聚氨酯粘合剂制备领域，具体涉及一种用于布布复合的二液型高剥离聚氨酯粘合剂及其制备方法。
背景技术
聚氨酯胶粘剂是分子链中含有氨基甲酸酯基(-NHCOO-)或异氰酸酯基(-NCO)的胶粘剂，由异氰酸酯和含羟基化合物如聚酯、聚醚、蓖麻油或其他多元醇反应得到。它的性能优异，具有分子可设计性强、物性广泛、粘接适用范围广等特点，是合成胶粘剂中的重要品种之一。其中二液型聚氨酯胶粘剂是品种最多、用量最大、用途最广的产品。该产品两个组分分别包装，易贮存，性能可调，具有粘合强度高、适用范围广、耐候性好等特点，在应用领域显示出独特的优势。
目前二液型聚氨酯粘合剂在纺织方面飞速发展，不仅对胶水的需求大幅增加，而且对其技术的改进和功能化极为期望。市场上开发出的丝绸类等光面复合面料，选用普通的胶水主要存在初粘强度不高、最终牢度效果差等问题，需要开发一种高剥离二液型聚氨酯粘合剂来粘合这种光面面料。
发明内容
本发明目的是为了克服现有技术的不足而提供一种用于布布复合的二液型高剥离聚氨酯粘合剂及其制备方法。
为达到上述目的，本发明所采用的技术方案为：
一种用于布布复合的二液型高剥离聚氨酯粘合剂，按质量百分含量计，所述聚氨酯粘合剂的原料配方包括以下组分：
Figure BDA0002272655910000011
其中，所述聚酯多元醇A、聚酯多元醇B的数均分子量分别为2000～3500；
所述聚酯多元醇C的数均分子量为100～300。
根据本发明的一些实施方面，所述聚酯多元醇A为聚苯酐二乙二醇酯。如CMA-4065、CMA-2085A、CMA-2085。
所述聚酯多元醇B为聚苯酐己二酸1,4丁二醇酯。如CMA-2095、CMB-54、CMA-4270。
所述聚酯多元醇C为聚均苯二甲酸酯。如CMA-4670。
所述扩链剂为1,4BG。
所述交联剂为TMP。
所述溶剂为DMC。
所述异氰酸酯为TDI。
所述催化剂为有机铋类催化剂。
所述终止剂为1,3BG。
本发明采取的另一技术方案为：一种上述所述的用于布布复合的二液型高剥离聚氨酯粘合剂的制备方法，所述制备方法包括：使聚酯多元醇A、聚酯多元醇B、聚酯多元醇C、抗氧剂、扩链剂、交联剂和一部分溶剂在50～60℃条件下搅拌20～60min，然后加入异氰酸酯，升温至70～80℃，搅拌反应30～90min，加入催化剂，升温至80～85℃，继续反应，待加德纳粘度达U，停止加热，加入终止剂和剩余溶剂，搅拌30～90min，出料，即得所述聚氨酯粘合剂。
由于上述技术方案运用，本发明与现有技术相比具有下列优点：
本发明的聚氨酯粘合剂配方中采用数均分子量分别为2000～3500的聚酯多元醇A和聚酯多元醇B为主多元醇原料，配合少量的数均分子量为100～300的聚酯多元醇C与异氰酸酯反应，并反应原料中还添加了扩链剂、交联剂等其他物质，最终制备得到的二液型聚氨酯粘合剂用于布布复合具有初始粘强度高，还具有高剥离性，最终牢度效果大大提高。
具体实施方式
下面结合具体实施例对本发明的具体实施作进一步详细说明，但本发明的实施和保护范围不限于此。
实施例1
本实施例提供的一种用于布布复合的二液型高剥离聚氨酯粘合剂，通过以下方法制备得到：
称量数均分子量为3500的聚酯多元醇CMA-4065为35份、称量数均分子量为2000的聚酯多元醇CMA-2095为30份、数均分子量为100的聚酯多元醇CMA-4670为0.6份、抗氧剂1010为0.1份、1,4BG为0.1份、TMP为0.05份加入反应釜中，开启搅拌，降温至55℃后加入DMC15份，搅拌30min，确保釜中原料已完全搅匀，保持反应釜温度为55℃，加入TDI5份。升温至75℃搅拌1h。加入有机铋类催化剂0.002份，升温至80℃继续反应。待加德纳粘度达到U后，关闭加热，加入DMC15份，1,3BG0.1份，搅拌1h。包装出料，密封保存。
实施例2
本实施例提供的一种用于布布复合的二液型高剥离聚氨酯粘合剂，通过以下方法制备得到：
称量数均分子量为2000的聚酯多元醇CMA-2085A为30份、称量数均分子量为2000的聚酯多元醇CMA-2095为35份、数均分子量为100的聚酯多元醇CMA-4670为0.5份、抗氧剂1010为0.1份、1,4BG为0.1份、TMP为0.05份加入反应釜中，开启搅拌，降温至50℃后加入DMC15份，搅拌30min，确保釜中原料已完全搅匀，保持反应釜温度为50℃，加入TDI5份。升温至70℃搅拌1h。加入有机铋类催化剂0.002份，升温至85℃继续反应。待加德纳粘度达到U后，关闭加热，加入DMC15份，1,3BG0.1份，搅拌1h。包装出料，密封保存。
实施例3
本实施例提供的一种用于布布复合的二液型高剥离聚氨酯粘合剂，通过以下方法制备得到：
称量数均分子量为2000的聚酯多元醇CMA-2085A为50份、称量数均分子量为3500的聚酯多元醇CMA-4270为15份、数均分子量为100的聚酯多元醇CMA-4670为0.7份、抗氧剂1010为0.1份、1,4BG为0.1份、TMP为0.05份加入反应釜中，开启搅拌，降温至60℃后加入DMC15份，搅拌30min，确保釜中原料已完全搅匀，保持反应釜温度为60℃，加入TDI5份。升温至80℃搅拌1h。加入有机铋类催化剂0.002份，升温至80℃继续反应。待加德纳粘度达到U后，关闭加热，加入DMC15份，1,3BG0.1份，搅拌1h。包装出料，密封保存。
实施例4
本实施例提供的一种用于布布复合的二液型高剥离聚氨酯粘合剂，通过以下方法制备得到：
称量数均分子量为2000的聚酯多元醇CMA-2085为35份、称量数均分子量为2000的聚酯多元醇CMB-54为30份、数均分子量为100的聚酯多元醇CMA-4670为0.6份、抗氧剂1010为0.1份、1,4BG为0.1份、TMP为0.05份加入反应釜中，开启搅拌，降温至50℃后加入DMC15份，搅拌30min，确保釜中原料已完全搅匀，保持反应釜温度为50℃，加入TDI5份。升温至70℃搅拌1h。加入有机铋类催化剂0.002份，升温至85℃继续反应。待加德纳粘度达到U后，关闭加热，加入DMC15份，终止剂0.1份，搅拌1h。包装出料，密封保存。
实施例5
本实施例提供的用于布布复合的二液型高剥离聚氨酯粘合剂，通过以下方法制备得到：
称量数均分子量为2000的聚酯多元醇CMA-2085A为30份、称量数均分子量为3500的聚酯多元醇CMA-4270为35份、数均分子量为100的聚酯多元醇CMA-4670为0.7份、抗氧剂1010为0.1份、1,4BG为0.1份、TMP为0.05份加入反应釜中，开启搅拌，降温至55℃后加入DMC15份，搅拌30min，确保釜中原料已完全搅匀，保持反应釜温度为55℃，加入TDI5份。升温至75℃搅拌1h。加入有机铋类催化剂0.002份，升温至80℃继续反应。待加德纳粘度达到U后，关闭加热，加入DMC15份，1,3BG0.1份，搅拌1h。包装出料，密封保存。
对比例1
本对比例提供的二液型高剥离聚氨酯粘合剂，该粘合剂的原料配方中不添加聚酯多元醇C，其他同实施例1。
对比例2
本对比例提供的二液型高剥离聚氨酯粘合剂，该粘合剂的原料配方中聚酯多元醇C添加2份，其他同实施例1。
对比例3
本对比例提供的二液型高剥离聚氨酯粘合剂，该粘合剂的原料配方中聚酯多元醇C为CMA-1670(数均分子量为1000)，其他同实施例1。
对实施例1～5和对比例1～3的二液型高剥离聚氨酯粘合剂用于布布复合(采用提花布和无纺布复合)后布料进行性能测试，测试结果如表2所示，测试方法为：将主胶(二液型粘合剂)与固化剂、溶剂(丁酮)按照一定的比例配制，搅匀，倒入22目网纹辊胶槽中进行涂布。
表1为测试时的具体操作参数
墙布种类 提花布跟无纺布
配胶比例 主胶：固化剂(万华6076)：溶剂(丁酮)＝10:1.2:5.5
试胶顺序 试胶重量10kg主胶
贴合压力 5kg
裁样宽度 2.5cm
初粘力、牢度测试标准 GB/T528-1998
表2为实施例1～5和对比例1～3的粘合剂用于布布复合后的性能测试结果
Figure BDA0002272655910000041
Figure BDA0002272655910000051
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (7)

1.一种用于布布复合的二液型高剥离聚氨酯粘合剂，其特征在于，按质量百分含量计，所述聚氨酯粘合剂的原料配方包括以下组分：
聚酯多元醇A 20~50%；
聚酯多元醇B 10~40%；
聚酯多元醇C 0.1~1%；
抗氧剂 0.01~0.1%；
扩链剂 0.05~0.1%；
交联剂 0.01~0.05%；
溶剂 20~35%；
异氰酸酯 3~10%；
催化剂 0.001~0.01%；
终止剂 0.01~0.1%；
其中，所述聚酯多元醇A、聚酯多元醇B的数均分子量分别为2000~3500；
所述聚酯多元醇C的数均分子量为100~300；
所述聚酯多元醇A为聚苯酐二乙二醇酯；
所述聚酯多元醇B为聚苯酐己二酸1,4丁二醇酯；
所述聚酯多元醇C为聚均苯二甲酸酯。
2.根据权利要求1所述的用于布布复合的二液型高剥离聚氨酯粘合剂，其特征在于：所述扩链剂为1,4BG。
3.根据权利要求1所述的用于布布复合的二液型高剥离聚氨酯粘合剂，其特征在于：所述交联剂为TMP。
4.根据权利要求1所述的用于布布复合的二液型高剥离聚氨酯粘合剂，其特征在于：所述溶剂为DMC。
5.根据权利要求1所述的用于布布复合的二液型高剥离聚氨酯粘合剂，其特征在于：所述异氰酸酯为TDI。
6.根据权利要求1所述的用于布布复合的二液型高剥离聚氨酯粘合剂，其特征在于：所述催化剂为有机铋类催化剂。
7.一种权利要求1~6中任一项权利要求所述的用于布布复合的二液型高剥离聚氨酯粘合剂的制备方法，其特征在于：所述制备方法包括：使聚酯多元醇A、聚酯多元醇B、聚酯多元醇C、抗氧剂、扩链剂、交联剂和一部分溶剂在50~60℃条件下搅拌20~60min，然后加入异氰酸酯，升温至70~80℃，搅拌反应30~90min，加入催化剂，升温至80~85℃，继续反应，待加德纳粘度达U，停止加热，加入终止剂和剩余溶剂，搅拌30~90min，出料，即得所述聚氨酯粘合剂。
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