摘要
采用固相剪切复合技术成功制备石墨-聚氯乙烯(PVC)复合粉体,实现了石墨的片层剥离和在PVC基体中的纳米分散及对PVC的抗静电改性。通过XRD、SEM、TEM等表征了石墨-PVC/PVC复合材料的结构,研究了其抗静电性能。结果表明,石墨的片层厚度约20nm,径厚比超过10。固相剪切碾磨技术制备的石墨-PVC/PVC复合材料的导电性能有较大提高。在石墨质量分数为2%时,表面电阻率为4.6×107Ω.cm,已达到了抗静电材料的要求,实现了低填充。在石墨质量分数为10%时,表面电阻率达到最低的4.1×104Ω.cm。
The graphite-polyvinylchloride(PVC) compounding powders were successfully prepared by solid state shear compounding technology(S3C) at ambient temperature,and then the graphite-PVC/PVC nanocomposites were processed by moulding.The structure and antistatic performance of graphite-PVC compounding powder and nanocomposites prepared through S3C based on pan-milling were investigated by XRD,SEM,TEM and electrical resistivity tests.The results show that the conductivity properties of graphite/PVC nanocomposites prepared through S3C based on pan-milling 20 cycles at ambient temperature are remarkably improved.The surface resistivity of graphite-PVC/PVC nanocomposites with 2% mass fraction of graphite is 4.6×107 Ω·cm.The surface resistivity of graphite-PVC/PVC nanocomposites with 10% mass fraction of graphite reaches lowest as 4.1×104 Ω·cm.The strip flake of graphite particles with thickness less than 20 nm and the aspect ratio of 10 times disperses homogeneously in the PVC matrix.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2013年第2期94-98,共5页
Acta Materiae Compositae Sinica
基金
陕西省13115科技创新工程重大科技攻关专项(2009ZDKG-62)
高分子材料工程国家重点实验室开放课题基金
关键词
PVC
石墨
固相剪切复合技术
磨盘碾磨
纳米复合材料
抗静电
PVC
graphite
solid state shear compounding technology(S3C)
panmilling
nanocomposites
antistatic