纤维与颗粒混杂增强聚氨酯硬泡塑料的制备及显微形貌  

PREPARATION AND MORPHOLOGY OF HYBRID REINFORCED RIGID POLYURETHANE FOAM WITH FIBER AND PARTICLE

作　　者：赵斌[1] 杨振国[1] 王建华[2] 胡正飞[1] 秦桑路[1] 金忠告羽 

机构地区：[1]复旦大学材料科学系,上海200433 [2]中国工程物理研究院化工材料研究所,四川成都610003

出　　处：《高分子材料科学与工程》2005年第1期188-190,194,共4页Polymer Materials Science & Engineering

基　　金：中国工程物理研究院自然科学基金项目

摘　　要：采用尼龙66纤维及SiO2颗粒粉末作为增强剂制备了混杂增强聚氨酯硬泡塑料,这种混杂增强硬泡塑料的力学性能包括拉伸强度,压缩强度,冲击强度都有明显提高。研究表明,为达到增强效果增强剂必须以偶联剂预处理。当尼龙66纤维的含量为7%,SiO2的含量为20%时所得聚氨酯泡沫塑料的力学性能增强最佳。SEM观察表明该硬泡塑料胞体平均大小为60μm左右。从拉伸断口形貌可看出纤维受力痕迹明显,表明纤维本身的拉伸强度对于硬泡塑料的力学性能增强起了重要作用。The hybrid rigid polyurethane foam was prepared using nylon 66 fiber and SiO_2 particle as reinforcing agents, which can distinctly improve its mechanical properties including tensile strength, compressive strength and impact strength. Experimental research shows that the reinforcing agents have to be treated with coupling agent in advance for gaining the effect of reinforcement. When the contents of nylon 66 fiber and SiO_2 particle are 7% and 20%, respectively, the optimized reinforcement effect of the hybrid rigid polyurethane composite foam can be mechanically realized. SEM observation indicates that the average size of the foam is about 60μm; furthermore the reinforcing fiber based on tensile fractograph withstands obvious loading, which shows the tensile strength of the fiber itself plays an important role to the hybrid rigid polyurethane composite foam.

关 键 词：聚氨酯硬泡 混杂增强 制备工艺 显微形貌 尼龙66 二氧化硅 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]