INVESTIGATION ON THE NANO-DISPERSION OF GRAPHITE INTO POLYMER MATRIX

CHEN Guohua; WENG Wengui; WU Dajun; WU Dingcai; CHEN Jingjing; YE Lihui; YAN Wenli

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INVESTIGATION ON THE NANO-DISPERSION OF GRAPHITE INTO POLYMER MATRIX

Research Bulletin | 更新时间：2021-03-19

- INVESTIGATION ON THE NANO-DISPERSION OF GRAPHITE INTO POLYMER MATRIX
- Acta Polymerica Sinica Issue 6, Pages: 803-806(2001)
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- Published：20 December 2001，
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CHEN Guohua, WENG Wengui, WU Dajun, WU Dingcai, CHEN Jingjing, YE Lihui, YAN Wenli. INVESTIGATION ON THE NANO-DISPERSION OF GRAPHITE INTO POLYMER MATRIX. [J]. Acta Polymerica Sinica (6):803-806(2001)
DOI：

CHEN Guohua, WENG Wengui, WU Dajun, WU Dingcai, CHEN Jingjing, YE Lihui, YAN Wenli. INVESTIGATION ON THE NANO-DISPERSION OF GRAPHITE INTO POLYMER MATRIX. [J]. Acta Polymerica Sinica (6):803-806(2001) DOI：

摘要

石墨具有电导率高、化学稳定性好等优点

被广泛应用于聚合物石墨复合导电材料[1～3] .石墨作为聚合物导电填料一般以粉末形态居多 .用粉末状石墨填料往往需要较高的填充量才能得到理想的导电性能 .石墨也可以制备成膨胀石墨

将它与聚合物复合

可以大幅度降低石墨的填充量 .如一般粉末状石墨填料与聚合物复合制备的导电材料其逾渗阀值为15%～20%

电导率达到10-4～10-7Ｓｃｍ[4];而若采用膨胀石墨方法

逾渗.

Abstract

Expanded graphite

prepared from the rapid heating of graphite intercalated compound

was blended with polystyrene via the intercalation and the in situ polymerization of styrene．SEM

STM and etc were used to characterize the nanostructure of the expanded graphite the composite of polymer／expanded graphite

and the changes of the nanostructure during the rolling process．The graphite formed the nanostructure during the expanding process of the GIC．The nanosheets were confirmed to have been dispersed in polystyrene matrix with the thickness of 10～30 nm．The conductivity of PS／expanded graphite composite was sensitive to the rolling process．The intensive rolling caused great decrease in its conductivity

due to the destruction of conducting network．

关键词

膨胀石墨纳米复合插层导电高分子

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