作　　者： ; ; ; ;

机构地区： 河南大学

出　　处： 《塑料工业》 2006年第4期48-50,共3页

摘　　要： 通过熔融共混法制备了尼龙66/纳米SiO2复合材料,并对复合材料的力学性能、动态力学性能以及拉伸断面形态进行了研究。结果表明,随着纳米SiO2含量的增加,复合材料的拉伸强度在纳米SiO2质量分数为3%时达到最大,较纯尼龙66提高7·6%;复合材料的简支梁缺口冲击强度随纳米SiO2含量的增加而增加,在纳米SiO2质量分数为4%时,比纯尼龙的简支梁缺口冲击强度提高51·3%。复合材料储能模量和损耗模量也较纯尼龙66有所增加;复合材料的断面出现明显的塑性变形。 PA 66/Nano-meter silica properties, dynamic mechanical property composites were prepared by means of melt blending and the mechanical and the morphology of the tensile fractured surface of the composites were studied. The results, showed when the content of the nano-meter silica was 3%, the tensile strength of the composite was the highest, 7.6 % higher than that of PA66 matrix. The Charpy impact strength of the composite increased with the increase of the content of the nano-meter silica, and was 51.3 % higher than that of PA66 matrix when the content of SiO2 was 4 %. The storage modulus and loss modulus of the composites were both improved. The tensile fracture morphologies of the composites revealed a coarser fracture pattern.

关 键 词： 尼龙 纳米 力学性能 动态力学性能 形态

领　　域： [化学工程]