单组分水溶性聚氨酯堵漏灌浆材料的制备  

Preparation of one-component water-soluble polyurethane plugging grouting material

作　　者：魏弘利[1] 李会录[1] 韩江凌[1] 张挺[1] 魏珂[1] 

机构地区：[1]西安科技大学材料科学与工程学院,陕西西安710054

出　　处：《中国胶粘剂》2016年第9期25-28,33,共5页China Adhesives

基　　金：国家自然科学基金资助项目(21204072)

摘　　要：以TDI（甲苯二异氰酸酯）和DJ-12（聚醚多元醇）为单体,配以溶剂（丙酮）、催化剂（间甲苯二胺）和缓凝剂（柠檬酸）等助剂,制备出单组分水溶性聚氨酯（SPM型浆液）堵漏灌浆材料。研究结果表明：制备该灌浆材料的最佳工艺条件是反应温度为80～90℃、反应时间为2.50～3.00 h;当w（溶剂）=25%～35%、w（—NCO）=7.00%～8.00%（均相当于灌浆材料质量而言）时,所得灌浆材料的综合性能相对较好,其发泡率为400%～470%、压缩强度为9.0～10.0 MPa且包水量（为14倍）相对最大。With TDI（toluene diisocyanate） and D J-12（polyether polyol） as monomers, adding some additives[such as solvent （acetone） , catalyst （m- toluenediamine） , and retarder （citric acid）I, a water- soluble one- component polyurethane （SPM type slurry）plugging grouting material was prepared. The research results showed that the optimal process conditions of preparing grouting material were preferred when reaction temperature was 80-90 ℃, and reaction time was 2.50-3.00 h. The grouting material had the relatively better combination property when mass fractions of solvent and -NCO were 25%-35% and 7.00%-8.00% in grouting material, here, its foaming rate was 400%-470%, compressive strength was 9.0-10.0 MPa and in-water multiple （ 14 times） was relatively maximal.

关 键 词：聚氨酯 堵漏 灌浆材料 单组分 水溶性 发泡率 

分 类 号：TQ433.432[化学工程] TQ436.6