摘要
通过添加离子液体(IL)改性多壁碳纳米管(MWCNT)制备了MWCNT/IL/聚偏氟乙烯(PVDF)复合材料。研究表明,IL-MWCNT的共轭作用能有效诱导PVDF极性β相生成,复合材料β相含量最高可达76.8%,是纯PVDF的2.62倍;材料介电常数可达26.55(100Hz),相比于纯PVDF增大了355%。此外,还探讨了PVDF复合材料的熔融沉积成型(FDM)成型制备最佳工艺参数,这对利用FDM成型制备可设计性器件具有一定的参考价值。
Multiwalled carbon nanotubes(MWCNT)/ionic liquid(IL)/polyvinylidene fluoride(PVDF)/composites were prepared by adding IL-MWCNT.The results show that the conjugated interaction of ILMWCNT with polymer effectively promotes the formation of polarβphase in PVDF,and the content ofβphase in the composite is up to 76.8%,which is 2.62 times of that in pure PVDF;the dielectric constant is 26.55(100 Hz),355%higher than that of pure PVDF.In addition,the optimal process parameters of fused deposition modeling(FDM)printing for PVDF composites were also discussed,which has guiding significance for the designable preparation of high dielectric devices by FDM printing.
作者
邵君燕
张慧颖
柯福佑
王朝生
徐静
陈烨
王华平
Junyan Shao;Huiying Zhang;Fuyou Ke;Chaosheng Wang;Jing Xu;Ye Chen;Huaping Wang(Key Laboratory of Ministry of Education for High Performance Fibers and Products,State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University,Shanghai 201620,China)
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2021年第9期116-123,共8页
Polymer Materials Science & Engineering
基金
国家自然科学基金资助项目(51703021)
上海市轻质结构复合材料重点实验室开放课题(2232019A4-10)
中央高校基本科研业务费专项资金(2232021G-02)。
关键词
聚偏氟乙烯
多壁碳纳米管
离子液体
Β相
熔融沉积成型
工艺参数
polyvinylidene fluoride
multiwalled carbon nanotubes
ionic liquid
βphase
fused deposition modeling
process parameters
