有机硅改性聚氨酯水泥砂浆材料的制备及性能研究  

Study on Preparation and Performance of Silicon Modified Polyurethane Cement Mortar Materials

作　　者：游胜勇[1] 戴润英[2] 董晓娜[1] 李玲[1] 陈衍华[1] 李辉[1] 

机构地区：[1]江西省科学院应用化学研究所,南昌330029 [2]江西农业大学,南昌330049

出　　处：《混凝土与水泥制品》2018年第3期64-67,共4页China Concrete and Cement Products

基　　金：江西省科学院预研项目和杰出青年基金项目(2016-JCQN-02)

摘　　要：采用羟基硅油、聚醚多元醇、MDI为原料制得有机硅改性聚氨酯预聚物,以甘油和催化型多元醇为固化剂,水泥、砂或生石灰为填料,制得了高弹性有机硅改性聚氨酯砂浆。讨论了聚灰比、固化剂组成以及-NCO含量对强度和固化时间的影响及填料对强度、可压缩性、回弹性和老化等性能的影响。实验结果表明,该材料具有高强度、固化快,弹性好,防渗透性能优异的特点,可以广泛应用工程防渗、公路快速修补等。High elastic silicone modified polyurethane mortar was prepared by cement, sand or lime as filler and silicone modified polyurethane prepolymer which was prepared by the hydroxyl silicone oil, polyether polyol and MDI at glycerol and catalyst type polyol as curing agent. The polymer cement ratio, curing agent composition and -NCO content on the strength and curing time and the effect of fillers on the strength, compressibility, resilience and aging performance were studied. The results show that the material has high strength, fast curing, good elasticity, excellent anti permeability performance characteristics. It can be used widely in rapid repair engineering anti-seepage, highway.

关 键 词：有机硅改性聚氨酯 砂浆 快速固化 高强 高弹 

分 类 号：TU528.41[建筑科学—建筑技术科学]