CN107312490B - 环保型双组分聚氨酯胶黏剂 - Google Patents

环保型双组分聚氨酯胶黏剂 Download PDF

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CN107312490B
CN107312490B CN201710507595.3A CN201710507595A CN107312490B CN 107312490 B CN107312490 B CN 107312490B CN 201710507595 A CN201710507595 A CN 201710507595A CN 107312490 B CN107312490 B CN 107312490B
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杜孝林
李明友
唐国涛
念以亭
董国鹏
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Abstract

本发明涉及一种环保型双组分聚氨酯胶黏剂，属于聚氨酯技术领域。所述胶黏剂由质量比为1:5～1的A组分和B组分制成，以质量百分数计，A组分由以下原料制成：聚氧化丙烯二醇3～6％，聚氧化丙烯三醇12～20％，聚氧化丙烯四醇15～25％，扩链剂5～10％，偶联剂0.3～2％，填料30～60％，增稠剂0.2～0.5％，催化剂0.05～0.8％，水0.2～0.8％；B组分由以下原料制成：二苯基亚甲基二异氰酸酯30～50％，多亚甲基多苯基异氰酸酯20～47％，增塑剂3～5％。本发明的环保型双组分聚氨酯胶黏剂主要用于基材的粘结，适用于不锈钢板、铝合金板、无机硅酸钙板和岩棉板的粘结，A组分和B组分按比例混合后发生化学交联反应，达到初始粘度高、固化速度快、粘结性能好的优异性能。

Description

环保型双组分聚氨酯胶黏剂
技术领域
本发明涉及一种环保型双组分聚氨酯胶黏剂，属于聚氨酯技术领域。
背景技术
聚氨酯胶黏剂是指分子链中含有氨基甲酸酯和/或异氰酸酯基团的胶黏剂，聚氨酯胶黏剂为反应型胶黏剂，在制备或粘接过程中，多异氰酸化合物或含有NCO端基的预聚体与活性氢化合物(如含羟基、胺基或水等)发生化学反应。目前，市面上的大多数胶黏剂都含有溶剂，气味大、不利于环保，另外，存在耐老化性能差、长时间固化不稳定等问题。
发明内容
本发明的目的是提供一种环保型双组分聚氨酯胶黏剂，具有较高的初粘力和粘结强度，储存期长、稳定性高，对多种类型的基材都有优异的附着性能。
本发明所述的环保型双组分聚氨酯胶黏剂，由质量比为1:5～1的A组分和B组分制成，其中：
以质量百分数计，A组分由以下原料制成：
Figure BDA0001335026230000011
所述聚氧化丙烯二醇的分子量为1000，聚氧化丙烯三醇的分子量为5000，聚氧化丙烯四醇的分子量为600；
所述扩链剂是分子量为300的聚氧化丙烯三醇。
所述偶联剂的型号为KH550。
所述填料为重质碳酸钙粉(600目以上)。
所述增稠剂为气相白炭黑，优选的型号为AEROSIL R202。
所述催化剂为月桂酸二丁基锡与三乙烯二铵的混合物，其中，混合物中三乙烯二铵的浓度为33％。
以质量百分数计，B组分由以下原料制成：
二苯基亚甲基二异氰酸酯 30～50％
多亚甲基多苯基异氰酸酯 20～67％
增塑剂 3～5％。
所述增塑剂为邻苯二甲酸二丁酯或邻苯二甲酸二辛酯。
所述的环保型双组分聚氨酯胶黏剂的制备方法如下：将A组分中配比量的原料混合，搅拌20～30min，得到乳白色的均一体系，封装备用；将B组分中配比量的原料混合，搅拌15～20min，封装备用；然后将A组分和B组分按照质量比为1:5～1的比例混合，得到产品。
本发明的有益效果如下：
(1)本发明的环保型双组分聚氨酯胶黏剂主要用于基材的粘结，适用于不锈钢板、铝合金板、无机硅酸钙板和岩棉板的粘结，A组分和B组分按比例混合后发生化学交联反应，达到初始粘度高、固化速度快、粘结性能好的优异性能；
(2)本发明的胶黏剂适用范围广，具有可调节的开放时间，较高的初粘力和粘结强度，储存期长，稳定性高，广泛的基材适用性，对多种类型的基材都有优异的附着性能。
具体实施方式
以下结合实施例对本发明做进一步描述。
实施例1
A组分：于1000L反应釜中称取分子量为1000的聚氧化丙烯二醇30kg，分子量为5000的聚氧化丙烯三醇75kg，分子量为600的聚氧化丙烯四醇145kg，分子量为300的聚氧化丙烯三醇45kg，增稠剂气相白炭黑(AEROSIL R202)1.5kg，硅烷偶联剂(KH550)3kg，碳酸钙粉295kg，催化剂月桂酸二丁基锡与三乙烯二铵(33％浓度)2.4kg，水2.4kg，在200rpm下分散100min，出料；
B组分：称取二苯基亚甲基二异氰酸酯和多亚甲基多苯基异氰酸酯分别150kg和141kg，邻苯二甲酸二丁酯9kg，在200rpm下分散20min，控制NCO％在25～30％，出料；
将A、B组分按质量比4:1混合，制作不锈钢剪切样件，固化条件为常温，3天后测试剪切强度(GB/T7124-2008)；使用铝合金板作为测试样件，固化条件为常温，3天后测试剥离强度(GB/T1457-2005)。性能检测结果见表1。
表1实施例1得到的产品性能检测结果
Figure BDA0001335026230000021
Figure BDA0001335026230000031

Claims (8)

1.一种环保型双组分聚氨酯胶黏剂，其特征在于：由质量比为1:5～1的A组分和B组分制成，其中：
以质量百分数计，A组分由以下原料制成：
Figure FDA0002382855370000011
所述聚氧化丙烯二醇的分子量为1000，聚氧化丙烯三醇的分子量为5000，聚氧化丙烯四醇的分子量为600；
以质量百分数计，B组分由以下原料制成：
二苯基亚甲基二异氰酸酯 30～50％
多亚甲基多苯基异氰酸酯 20～67％
增塑剂 3～5％；
所述A组分、B组分中的各组分用量之和均为100％。
2.根据权利要求1所述的环保型双组分聚氨酯胶黏剂，其特征在于：扩链剂是分子量为300的聚氧化丙烯三醇。
3.根据权利要求1所述的环保型双组分聚氨酯胶黏剂，其特征在于：偶联剂的型号为KH550。
4.根据权利要求1所述的环保型双组分聚氨酯胶黏剂，其特征在于：填料是粒度为600目以上的重质碳酸钙粉。
5.根据权利要求1所述的环保型双组分聚氨酯胶黏剂，其特征在于：增稠剂为气相白炭黑。
6.根据权利要求1所述的环保型双组分聚氨酯胶黏剂，其特征在于：催化剂为月桂酸二丁基锡与三乙烯二胺 的混合物，其中，混合物中三乙烯二胺 的浓度为33％。
7.根据权利要求1所述的环保型双组分聚氨酯胶黏剂，其特征在于：增塑剂为邻苯二甲酸二丁酯或邻苯二甲酸二辛酯。
8.根据权利要求1所述的环保型双组分聚氨酯胶黏剂，其特征在于：制备方法如下：将A组分中配比量的原料混合，搅拌20～30min，得到乳白色的均一体系，封装备用；将B组分中配比量的原料混合，搅拌15～20min，封装备用；然后将A组分和B组分按照质量比为1:5～1的比例混合，得到产品。
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CN102627937A (zh) * 2012-03-27 2012-08-08 合肥工业大学 一种双组分导热聚氨酯灌封胶及其制备方法

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CN101831268A (zh) * 2010-03-24 2010-09-15 山东东大聚合物股份有限公司 连续法生产岩棉彩钢夹芯板用双组份环保聚氨酯胶粘剂及其制备方法
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