摘要
以POEgMAH为主增韧剂,环氧化聚合物为助增韧剂,同时加入复合型抗紫外光助剂,制备了耐候高强高韧PA66复合材料。结果表明:在PA66中添加POEgMAH,对PA66具有优异的增韧效果,但同时也使材料的压缩屈服强度大幅度降低。当POEgMAH的质量分数为20%时,复合材料的缺口冲击强度比纯PA66提高了近15倍,而压缩强度下降了40%以上。采用环氧化聚合物作为协同增韧剂,使PA66/POEgMAH复合材料在保持较高压缩屈服强度的基础上,同时又具有良好的耐冲击性能;通过添加复合型抗紫外光老化助剂,赋予了材料优异的抗紫外光老化性能。
Weather-proof, high strength and high toughened PA66 composite was prepared with POE-g-MAH as main toughener, epoxidized polymer as auxiliary toughener and compounded UV resistant agents. The result showed that POE-g-MAH could endow PA66 with excellent impact strength and decrease the compression yield strength obviously. When the mass fraction of POE-g-MAH in the composite was 20 %, the impact strength of the composite was about 15 times higher than that of PA66 and the compression strength was 40 % of that of PA66. Epoxidized polymer had synergistic toughening effect when used with POE-g-MAH, made PA66/POE-g-MAH composite had high compression yield strength and better impact resistance. The addition of compounded UV resistant agent endowed the PA66 composite with excellent weather resistance.
出处
《塑料工业》
CAS
CSCD
北大核心
2005年第12期67-69,共3页
China Plastics Industry