Study on Electrical and Self-heating Properties of Ultra-high Molecular Weight Polyethylene-based Conductive Composites

Yuezhen BIN; Ru CHEN; Rong ZHANG; Ping TANG; Masaru MATSUO

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Study on Electrical and Self-heating Properties of Ultra-high Molecular Weight Polyethylene-based Conductive Composites

更新时间：2022-09-18

- Study on Electrical and Self-heating Properties of Ultra-high Molecular Weight Polyethylene-based Conductive Composites
- Polymer Bulletin Vol. 25, Issue 1, Pages: 76-87(2012)
- 作者机构：
  
  大连理工大学化工与环境生命学部高分子材料系，大连　116024
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2012-01，
  
  Received：10 July 2011，
  
  Revised：18 July 2011，
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Yuezhen BIN, Ru CHEN, Rong ZHANG, Ping TANG, Masaru MATSUO. Study on Electrical and Self-heating Properties of Ultra-high Molecular Weight Polyethylene-based Conductive Composites. [J]. Polymer Bulletin 25(1):76-87(2012)
DOI：

Yuezhen BIN, Ru CHEN, Rong ZHANG, Ping TANG, Masaru MATSUO. Study on Electrical and Self-heating Properties of Ultra-high Molecular Weight Polyethylene-based Conductive Composites. [J]. Polymer Bulletin 25(1):76-87(2012) DOI：

摘要

超高分子量聚乙烯(UHMWPE)具有优异的综合性能

本文采用凝胶结晶溶液方法制备了分别以碳纤维(CF)和镀镍碳纤维(NiCF)为导电填料

UHMWPE为基体的3个系列导电聚合物复合材料—UHMWPE/CF、UHMWPE/NiCF和UHMWPE/EMMA/CF复合体系

并分别对它们进行了室温伽马射线辐射处理

重点研究了这些材料的电性能和自发热性能

利用DSC、SEM、WAXS、DMA和体积膨胀等仪器进行了一系列测试表征。结果表明

NiCF作为导电填料时体系的逾渗阈值最低

为3vol%。伽马射线辐射处理不仅能有效提高材料的PTC效应

而且在合适的辐射剂量时也能有效提高材料的自发热性能。对材料介电性能的研究揭示了材料的交流电阻率与温度、频率的依赖关系。

Abstract

Ultra-high molecular weight polyethylene(UHMWPE) possesses outstanding properties. Carbon fiber(CF) and nickel carbon fiber(NiCF) filled UHMWPE blends of UHMWPE/CF

UHMWPE/NiCF and UHMWPE/EMMA/CF composites were prepared by gelation/crystallization method

and after then gamma ray irradiation was performed on which at room temperature. The attention was focused on the electrical and self-heating properties of composites. Such equipment as DSC

SEM

WAXS and DMA were utilized to measure and characterize the composites. Results demonstrated that minimum percolation threshold value of 3vol% was obtained for UHMWPE/NiCF composites with NiCF as filler. Suitable level of gamma ray irradiation is effective to improve both the PTC effect and self-heating properties of composites. The dielectric properties of composites revealed the relationship between AC resistivity

temperature and frequency.

关键词

超高分子量聚乙烯PTC效应自发热性能伽马射线辐射

Keywords

Ultra-high molecular weight polyethylenePTC effectSelf-heating propertiesGamma ray irradiation

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Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing, South China University of Technology

Key Laboratory of Polymer Processing Engineering, Ministry of Education, South China University of Technology

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