Study on Structure and Properties of Ultra-High Molecular Weight Polyethylene Fibers Irradiated by Electron Beam in Large Dose Range

Xiao-jiao ZHANG; Zheng WEI; Li-qun ZHANG

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Study on Structure and Properties of Ultra-High Molecular Weight Polyethylene Fibers Irradiated by Electron Beam in Large Dose Range

更新时间：2022-09-18

- Study on Structure and Properties of Ultra-High Molecular Weight Polyethylene Fibers Irradiated by Electron Beam in Large Dose Range
- Polymer Bulletin Vol. 27, Issue 10, Pages: 86-91(2014)
- 作者机构：
  
  北京化工大学先进弹性体材料研究中心，北京　100029
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2014-10，
  
  Received：25 March 2014，
  
  Revised：02 June 2014，
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Xiao-jiao ZHANG, Zheng WEI, Li-qun ZHANG. Study on Structure and Properties of Ultra-High Molecular Weight Polyethylene Fibers Irradiated by Electron Beam in Large Dose Range. [J]. Polymer Bulletin 27(10):86-91(2014)
DOI：

Xiao-jiao ZHANG, Zheng WEI, Li-qun ZHANG. Study on Structure and Properties of Ultra-High Molecular Weight Polyethylene Fibers Irradiated by Electron Beam in Large Dose Range. [J]. Polymer Bulletin 27(10):86-91(2014) DOI：

摘要

采用高能电子束辐照方法获得了一系列从20kGy到1000kGy大剂量辐照范围的超高分子量聚乙烯纤维(UHMWPE fiber)。通过凝胶含量测试和溶胶流变性能测试定性和定量表征了辐照过程的交联和裂解效应，利用差示扫描量热仪(DSC)和X射线衍射仪（XRD)表征了辐照产物的结晶性能，并且利用热机械分析仪 (TMA)表征了辐照纤维在高温恒温条件下的热尺寸稳定性。结果表明，高能电子束辐照对于UHMWPE纤维具有交联和裂解两种作用；大剂量辐照下会造成纤维熔点和熔融热焓降低，法线方向晶粒平均尺寸有明显变小；辐照交联大大提高了纤维的热尺寸稳定性。

Abstract

Crosslinking of ultra-high molecular weight polyethylene fibers (UHMWPE fibers) is investigated by means of electron beam irradiation. The dose of irradiation is from 20kGy to 1000kGy. The structure and mechanical properties of the fibers with different irradiation dose are discussed. The results show that the gel content of the fibers increases with the increasing irradiation dose. There are two effects of electron beam irradiation on fibers

crosslinking and chain scission. Melting point and melting enthalpy of fibers decrease with the increasing irradiation dose. The average size of crystal of normal direction is also decrease with the increasing irradiation dose. The thermal dimensional stability of fibers increases with the increasing irradiation dose.

关键词

超高分子量聚乙烯纤维高能电子束辐照交联热尺寸稳定性

Keywords

Ultra-high molecular weight polyethylene fiber (UHMWPE fiber)Electron beam irradiationCrosslinkingThermal dimensional stability

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