CN110684166B - 一种发泡注浆剂 - Google Patents

一种发泡注浆剂 Download PDF

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CN110684166B
CN110684166B CN201910910653.6A CN201910910653A CN110684166B CN 110684166 B CN110684166 B CN 110684166B CN 201910910653 A CN201910910653 A CN 201910910653A CN 110684166 B CN110684166 B CN 110684166B
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王立忠
李昌盛
李娇
张旋基
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Foshan Rikai Technology Co ltd
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Abstract

本发明公开了一种发泡注浆剂，其特征在于，包括主剂和催化剂，所述主剂包括主体、表面活性剂和稀释剂的混合物，所述主体由聚醚类聚氨酯预聚体与多苯基多亚甲基多异氰酸酯经过加成反应所得，所述催化剂包括含有三乙烯二胺溶液、氨基醇类、稀释剂的混合物。在制备主剂的过程中采用了预聚合的工艺方法，以聚醚类聚氨酯预聚体与PAPI异氰酸酯进行加成反应，从而使得主剂与催化剂混合后的发泡率得到提高，同时还可减少挥发物、提高产品硬度、降低凝固时间的目标。

Description

一种发泡注浆剂
技术领域
本发明涉及高分子化合物技术领域，特别涉及一种发泡注浆剂。
背景技术
发泡注浆剂通常也称为PU灌浆剂。是一种具有发泡特性和粘结特性的化学物质。是依靠水分固化的聚氨酯发泡材料。由于现有技术制得的发泡注浆剂质量参差不齐，业内对其研究集中于如何提高发泡率，减少挥发物，降低凝固时间。
发明内容
本发明公开了一种发泡注浆剂，其主剂以聚醚类聚氨酯预聚体与PAPI异氰酸酯进行再次加成反应，使得主剂与催化剂混合后的发泡率得到提高，同时还可减少挥发物、提高产品硬度、降低凝固时间。
一种发泡注浆剂，包括主剂和催化剂，所述主剂包括主体、表面活性剂和稀释剂的混合物，所述主体由聚醚类聚氨酯预聚体与多苯基多亚甲基多异氰酸酯经过加成反应所得，所述催化剂包括含有三乙烯二胺溶液、氨基醇类、稀释剂的混合物。
进一步，所述主剂的原料按以下质量份配比：
Figure BDA0002214601660000011
所述催化剂的原料按以下质量份配比：
三乙烯二胺溶液 1％～5％
氨基醇类 1％～5％
稀释剂 余量。
其中，所述主剂的密度为1.12g/cm3至1.13g/cm3；优选地，所述主剂的粘度≤50mPas；优选地，所述主剂的不挥发物含量≥80％。所述表面活性剂为有机硅表面活性剂。所述稀释剂选自丙酮、乙酸乙酯、甲苯、二甲苯中的至少一种。所述三乙烯二胺溶液是溶剂为一缩二丙二醇的33％的三乙烯二胺溶液。所述氨基醇类选自6-二甲氨基-1-己醇中的至少一种。
进一步，所述主剂和催化剂混合后的凝固时间≤120s。所述主剂和催化剂混合后的发泡率≥2500％。
本发明还提供了上述发泡注浆剂的制备方法，其包括步骤：
主剂的制备：向反应釜内依次加入聚醚类聚氨酯预聚体、多苯基多亚甲基多异氰酸酯、表面活性剂和稀释剂；反应温度20℃至35℃，反应压力-0.03MPa至-0.06MPa，反应时间30min至40min；
催化剂的制备：向反应釜内依次加入三乙烯二胺溶液、氨基醇类和稀释剂，在25℃至30℃环境下反应20min至30min。
本技术方案的有益效果为：在制备主剂的过程中采用了预聚合的工艺方法，以聚醚类聚氨酯预聚体与PAPI异氰酸酯进行加成反应，。从而使得主剂与催化剂混合后的发泡率得到提高，同时还可减少挥发物、提高产品硬度、降低凝固时间的目标。
具体实施方式
实施例1
一种发泡注浆剂，包括主剂和催化剂。
主剂的制备：按质量比计算向制备主剂的反应釜内依次加入35％聚醚类聚氨酯预聚体、40％多苯基多亚甲基多异氰酸酯、0.8％有机硅表面活性剂和24.2％丙酮；在28±0.5℃的反应温度下，反应压力-0.03MPa，反应时间35min；而后破除真空，卸料；
催化剂的制备：按质量比计算向制备催化剂的反应釜内依次加入3％三乙烯二胺溶液、2％的6-二甲氨基-1-己醇，余量为丙酮，在26±0.5℃的环境下反应20min，然后卸料。
实施例2
一种发泡注浆剂，包括主剂和催化剂。
主剂的制备：按质量比计算向制备主剂的反应釜内依次加入44％聚醚类聚氨酯预聚体、50％多苯基多亚甲基多异氰酸酯、1％有机硅表面活性剂和5％甲苯；在30±1.0℃的反应温度下，反应压力-0.05MPa，反应时间30min；而后破除真空，卸料；
催化剂的制备：按质量比计算向制备催化剂的反应釜内依次加入1％的三乙烯二胺溶液、3％的6-二甲氨基-1-己醇，余量为丙酮，在29±0.5℃的环境下反应24min，然后卸料。
实施例3
一种发泡注浆剂，包括主剂和催化剂。
主剂的制备：按质量比计算向制备主剂的反应釜内依次加入55％聚醚类聚氨酯预聚体、34.5％多苯基多亚甲基多异氰酸酯、0.5％有机硅表面活性剂和10％乙酸乙酯；在30±1.0℃的反应温度下，反应压力-0.04MPa，反应时间32min；而后破除真空，卸料；
催化剂的制备：按质量比计算向制备催化剂的反应釜内依次加入3％的三乙烯二胺溶液、4％的6-二甲氨基-1-己醇，余量为甲苯，在26±0.5℃的环境下反应22min，然后卸料。
实施例4
一种发泡注浆剂，包括主剂和催化剂。
主剂的制备：按质量比计算向制备主剂的反应釜内依次加入60％聚醚类聚氨酯预聚体、31.5％多苯基多亚甲基多异氰酸酯、0.5％有机硅表面活性剂和8％二甲苯；在30±1.0℃的反应温度下，反应压力-0.04MPa，反应时间40min；而后破除真空，卸料；
催化剂的制备：按质量比计算向制备催化剂的反应釜内依次加入4％的三乙烯二胺溶液、5％的6-二甲氨基-1-己醇，余量为甲苯，在22±1℃的环境下反应28min，然后卸料。
上述4个实施例制得的发泡注浆剂其产品特性如下表：
Figure BDA0002214601660000041
由上表可知，本技术方案提供的发泡注浆剂制备方法所制得的发泡注浆剂具有减少挥发物、提高产品硬度、降低凝固时间的优点。

Claims (8)

1.一种发泡注浆剂，其特征在于，包括主剂和催化剂，所述主剂包括主体、表面活性剂和稀释剂的混合物，所述主体由聚醚类聚氨酯预聚体与多苯基多亚甲基多异氰酸酯经过加成反应所得，所述催化剂包括含有三乙烯二胺溶液、氨基醇类、稀释剂的混合物；
所述主剂的原料按以下质量份配比：
聚醚类聚氨酯预聚体 35%～60%
多苯基多亚甲基多异氰酸酯 35%～60%
表面活性剂 0.1%～1.0%
稀释剂 5%～25%；
所述催化剂的原料按以下质量份配比：
三乙烯二胺溶液 1%～5%
氨基醇类 1%～5%
稀释剂余量；
所述主剂的密度为1.12 g/cm3至1.13 g/cm3；所述主剂的粘度≤50mPas；所述主剂的不挥发物含量≥80%。
2.根据权利要求1所述的发泡注浆剂，其特征在于，所述表面活性剂为有机硅表面活性剂。
3.根据权利要求1所述的发泡注浆剂，其特征在于，所述稀释剂选自丙酮、乙酸乙酯、甲苯、二甲苯中的至少一种。
4.根据权利要求1所述的发泡注浆剂，其特征在于，所述三乙烯二胺溶液是溶剂为一缩二丙二醇的33%的三乙烯二胺溶液。
5.根据权利要求1所述的发泡注浆剂，其特征在于，所述氨基醇类选自6-二甲氨基-1-己醇。
6.根据权利要求1所述的发泡注浆剂，其特征在于，所述主剂和催化剂混合后的凝固时间≤120s。
7.根据权利要求1所述的发泡注浆剂，其特征在于，所述主剂和催化剂混合后的发泡率≥2500%。
8.如权利要求1至7任一项所述发泡注浆剂的制备方法，其特征在于包括以下步骤：
主剂的制备：向反应釜内依次加入聚醚类聚氨酯预聚体、多苯基多亚甲基多异氰酸酯、表面活性剂和稀释剂；反应温度20℃至35℃，反应压力-0.03MPa至-0.06MPa，反应时间30min至40min；
催化剂的制备：向反应釜内依次加入三乙烯二胺溶液、氨基醇类和稀释剂，在25℃至30℃环境下反应20min至30min。
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