聚氨酯/纳米二氧化硅有机-无机杂化材料的制备与性能  

Preparation and performance of polyurethane/nano silica organic-inorganic hybrid material

作　　者：孟凡宁 易建军 杜海 荣丽娟 MENG Fan-ning;YI Jian-jun;DU Hai;RONG Li-juan(Research Institute of Lanzhou Petrochemical Co.,Ltd.,PetroChina,Lanzhou 730060,China)

机构地区：[1]中国石油兰州石油化工有限公司研究院,甘肃兰州730060

出　　处：《热固性树脂》2023年第6期30-33,共4页Thermosetting Resin

摘　　要：以自制的端异氰酸酯基聚丁二烯(ITPB)为基体,纳米二氧化硅(SiO_(2))为交联固化剂,采用预聚体法制备了一系列不同纳米SiO_(2)含量的有机-无机杂化材料。阐述了其制备机理,研究了不同固化条件对有ITPB/SiO_(2)杂化材料力学性能的影响,并对其进行了动态力学分析和X射线衍射分析。结果表明:室温固化14 d后,110℃固化24 h,杂化材料的综合力学性能最佳。纳米SiO_(2)的添加量越多,杂化材料的储能模量越大。添加质量分数12%的纳米SiO_(2)杂化材料的抗湿滑性能和操控性能最好,纳米SiO_(2)添加质量分数为8%时,杂化材料的滚动阻力最小。A series of organic-inorganic hybrid material with different nano-silica contents were prepared by prepolymer method using self-made isocyanate terminated polybutadiene(ITPB)as matrix and nano-silica as crosslinking curing agent.The preparation mechanism of was described,the effects of different curing conditions on the mechanical properties of ITPB/SiO2 hybrid material were studied,and its dynamic mechanical analysis and X-ray diffraction analysis were carried out.The results showed that after curing at room temperature for 14 days,curing at 110℃for 24 hours,the comprehensive mechanical properties of hybrid material were the best.The larger the amount of nano-silica added,the larger the storage modulus of the hybrid material.The wet skid resistance and handling performance of hybrid material were the best when adding 12wt%nano-silica.The rolling resistance of hybrid material was the smallest when adding 8wt%nano-silica.

关 键 词：纳米二氧化硅 端异氰酸酯基聚丁二烯 预聚体 有机-无机杂化材料 制备 力学性能 抗湿滑 操控性 滚动阻力 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]