添加纳米白炭黑对锶铁氧体/PPS复合材料结构和力学性能的影响  

Effects of Nano-SiO_2 on the Microstructure and Mechanical Properties of Sr-ferrite/PPS Composites

作　　者：周益栋 乔梁 郑精武 蔡伟 余靓 李旺昌 应耀 车声雷 ZHOU Yi-dong;QIAO Liang;ZHENG Jing-wu;CAI Wei;YU Jing;LI Wang-chang;YING Yao;CHE Sheng-lei(Research Center of Magnetic and Electronic Materials,College of Materials Science and Engineering, Zhejiang University of Technology,Hangzhou 310014,China)

机构地区：[1]浙江工业大学材料科学与工程学院磁电功能材料研究所,浙江杭州310014

出　　处：《塑料工业》2019年第1期121-125,共5页China Plastics Industry

摘　　要：采用熔融共混法,以纳米白炭黑为增韧剂改性锶铁氧体/聚苯硫醚(PPS)复合材料,分别通过简支梁摆锤冲击测试仪、万能试验机、差示扫描量热仪(DSC)和毛细管流变仪探究了不同添加量的纳米白炭黑对复合材料各项力学性能、熔融/结晶行为和流变行为的影响。结果发现,适量纳米白炭黑的添加可以改变PPS的结晶行为,显著提升复合材料的冲击强度和韧性,但也会导致复合材料的加工流动性下降。Sr-ferrite/Poly(phenylene sulfone)(PPS)composites with the nano-silicon dioxide toughening agent were prepared by the melt blending method.The mechanical properties were measured by the impact pendulum tester and the universal testing machine.DSC and the capillary rheometer were used to study the effects of nano-SiO 2 on the melting/crystallization behavior and the rheological behavior of Sr-ferrite/PPS composites.The results indicate that the appropriate addition of nano-SiO 2 would influence the crystallization behavior of PPS and significantly improve the impact strength and toughness of the composite.However,the addition of nano-SiO 2 could also reduce the melt fluidity in the process.

关 键 词：聚苯硫醚 锶铁氧体 纳米白炭黑 冲击强度 

分 类 号：TQ326.56[化学工程—合成树脂塑料工业]