原位法制备PU／水玻璃有机-无机杂化注浆材料及其性能研究  

Preparation and Properties of PU/Silicate Organic-inorganic Hybrid Materials by in Situ Method

作　　者：方超[1] 夏茹[1,2] 荣传新[3] 唐永志[4] 钱家盛[1,2] 陈鹏[1,2] 杨斌[1,2] 曹明[1,2] 郑争志[1,2] 

机构地区：[1]安徽大学化学化工学院,安徽合肥230601 [2]绿色高分子材料安徽省重点实验室,安徽合肥230601 [3]安徽理工大学土木建筑学院,安徽淮南232001 [4]淮南矿业集团有限公司,安徽淮南232001

出　　处：《塑料工业》2016年第7期7-10,共4页China Plastics Industry

基　　金：国家自然科学基金项目(51403001,51273001);淮南矿业集团科研项目计划《厚松散含水层下薄基岩水-岩耦合致灾机理及综采关键技术研究》

摘　　要：采用原位法制备了聚氨酯/水玻璃有机-无机杂化注浆材料,研究了水玻璃的模数和浓度、异氰酸酯平均官能度、邻苯二甲酸二丁酯DBP含量对杂化注浆材料力学、阻燃、抗静电性能的影响。结果显示,水玻璃模数为2.8、质量分数为50%,异氰酸酯平均官能度为2.8,DBP含量为10%时,材料的综合性能最佳,其拉伸、压缩、冲击强度分别为3.43 MPa、47.5 MPa、0.74kJ/m^2;上、下表面电阻分别为7.7×10~5、3.2×10~5Ω;氧指数为33%。SEM测试结果显示表面活性剂聚乙二醇400二月桂酸酯(PEG400DL)可以明显减小杂化注浆材料分散相的相畴尺寸,加入4%的PEG400DL可使注浆材料的拉伸强度显著提升至8.49 MPa。The polyurethane/silicate organic inorganic hybrid materials were prepared by in situ method. The effects of silicate modulus, concentration, isocyanate average functionality and DBP content on the mechanical and flame retardant and anti-static properties of the grouting materials were researched. The results show that with the silicate modulus of 2. 8, the average functionality of isoeyanate of 2. 8 and the DBP content of 10% , the comprehensive performance of the grouting materials was the best. The tensile and compressive and impact strength ware 3.43 MPa, 47.5 MPa, 0. 74 kJ/m2, respectively; the upper and lower surface resistances are 7.7× 10^5 and 3.2× 10^5 , respectively; the oxygen index was 33%. The SEM results show that the surfactant PEG400DL can significantly reduce the dispersed phase domain size of the hybrid grouting material and when the PEG400DL content is 4%, the tensile strength of the grouting material is improved to 8.49 MPa significantly.

关 键 词：聚氨酯 水玻璃 有机-无机杂化材料 注浆 表面活性剂 

分 类 号：TQ317[化学工程—高聚物工业]