中国塑料 ›› 2022, Vol. 36 ›› Issue (4): 43-46.DOI: 10.19491/j.issn.1001-9278.2022.04.008

• 材料与性能 • 上一篇    下一篇

试样厚度对聚乙烯拉伸性能的影响

温原(), 毛现朋, 徐科杰   

  1. 浙江瑞堂塑料科技股份有限公司,浙江 宁波 315323
  • 收稿日期:2021-12-09 出版日期:2022-04-26 发布日期:2022-04-24
  • 作者简介:温原,高级工程师,中塑协专家,长期从事滚塑高分子粉末的研发和产业化,10258@163.com

Effect of sample thickness on tensile properties of polyethylene

WEN Yuan(), MAO Xianpeng, XU Kejie   

  1. Zhejiang Rotoun Plastic Technology Corp,Ningbo 315323,China
  • Received:2021-12-09 Online:2022-04-26 Published:2022-04-24

摘要:

通过对不同厚度聚乙烯试样的拉伸试验进行分析。结果表明,试样厚度对聚乙烯的强度、应变、拉伸模量均有较大影响,对单位面积的屈服吸收能没有影响;现有塑料制品设计中,材料的拉伸性能和制品厚度为独立参数的做法存在隐患。

关键词: 聚乙烯, 厚度, 强度, 应变, 模量, 吸收能

Abstract:

This paper reported an investigation on the effect of sample thickness on tensile properties of polyethylene (PE). Through the analysis of tensile tests of PE samples with different thickness, the thickness could generate a great influence on the strength, strain and tensile modulus of PE. However, there was no effect on the yield absorption energy per unit area. In the current design of plastic products, there have been hidden dangers with the tensile properties of PE materials and the thickness of products as two independent parameters.

Key words: polyethylene, thickness, strength, strain, modulus, absorbed energy

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