PBDMS/PA11复合材料的冲击及压缩性能研究  

Study on the impact and compression properties of PBDMS/PA11 composite materials

作　　者：秦文娜 翟哲[1] 阮棉芳 于海洋 李强 许志华 李峰[1,2] Qin Wenna;Zhai Zhe;Ruan Mianfang;Yu Haiyang;Li Qiang;Xu Zhihua;Li Feng(College of Materials Science and Engineering,Xi'an University of Technology,Xi’an 710048;Quanzhou Pike Shoes Co.,Ltd.,Quanzhou 362000;Shaanxi Pike Xuankai New Material Co.,Ltd.,Xi’an 710000;Jiangxi Lianchuang Electroacoustic Co.,Ltd.,Ji’an 330000)

机构地区：[1]西安理工大学材料科学与工程学院,西安710048 [2]泉州匹克鞋业有限公司,泉州362000 [3]陕西匹克玄铠新材料有限公司,西安710000 [4]江西联创电声有限公司,吉安330000

出　　处：《化工新型材料》2024年第12期116-119,123,共5页New Chemical Materials

基　　金：陕西省自然科学基础研究计划青年项目(2022JQ-432)。

摘　　要：利用聚硼硅氧烷(PBDMS)中的动态化学键—Si—O—B调控尼龙11(PA11)的冲击和抗压性能,通过熔融共混方式在PA11中添加PBDMS制备了PBDMS/PA11复合材料,研究了PBDMS含量对复合材料冲击性能、压缩性能及形貌结构的影响,并阐述了PBDMS影响PA11性能的机理。结果表明:复合材料的悬臂梁缺口冲击强度随着PBDMS含量的增加而提高,PBDMS质量分数为12%时,悬臂梁缺口冲击强度达到最大值9.9kJ/m^(2),比纯PA11增加25%;复合材料的压缩永久变形率则随着PBDMS含量的增加而降低,PBDMS质量分数为15%时,压缩永久变形率最低为6%,比纯PA11降低50%。The dynamic chemical bond-Si-O-B in polyborosiloxane(PBDMS)was used to regulate the impact and compression properties of nylon 11(PA11).PBDMS/PA11 composites were prepared by adding PBDMS to PA11 with melt blending method.The effects of PBDMS content on the impact,compression properties and morphology structure of the samples were investigated,and the mechanism of PBDMS affecting the performance of PA11 was expounded.The results indicated that the cantilever beam notched impact strength of the composites increased with the increase of PBDMS content,and it reached the maximum value of 9.9kJ/m^(2) when the PBDMS mass fraction was 12%,which was 25%higher than that of pure PA11.The compression permanent deformation rate of the composites decreased with the increase of PBDMS content,and it achieved the lowest value of 6%when the PBDMS mass fraction was 15%,which was 50%lower than that of pure PA11.

关 键 词：PA11 PBDMS 熔融共混 悬臂梁缺口冲击强度 压缩永久变形 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]