Study on the Mechanical Properties of Carbon Black/Polypropylene Composites Based on Nanoindentation Technology

Xiao-xin YAN; Hong-lei CAI; An-jiang ZHANG; Yu SHAO; Ming-hua ZHANG; Jian-ke DU

doi:10.14028/j.cnki.1003-3726.2020.06.004

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Study on the Mechanical Properties of Carbon Black/Polypropylene Composites Based on Nanoindentation Technology

更新时间：2022-08-31

- Study on the Mechanical Properties of Carbon Black/Polypropylene Composites Based on Nanoindentation Technology
- Polymer Bulletin Vol. 33, Issue 6, Pages: 35-42(2020)
- 作者机构：
  
  宁波大学机械工程与力学学院,宁波 315000
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2020.06.004
  CLC：
- Published：20 June 2020，
  
  Received：01 August 2019，
  
  Revised：27 December 2019，
扫描看全文
Xiao-xin YAN, Hong-lei CAI, An-jiang ZHANG, Yu SHAO, Ming-hua ZHANG, Jian-ke DU. Study on the Mechanical Properties of Carbon Black/Polypropylene Composites Based on Nanoindentation Technology. [J]. Polymer Bulletin 33(6):35-42(2020)
DOI：

Xiao-xin YAN, Hong-lei CAI, An-jiang ZHANG, Yu SHAO, Ming-hua ZHANG, Jian-ke DU. Study on the Mechanical Properties of Carbon Black/Polypropylene Composites Based on Nanoindentation Technology. [J]. Polymer Bulletin 33(6):35-42(2020) DOI： 10.14028/j.cnki.1003-3726.2020.06.004.

摘要

利用纳米压痕技术对炭黑填充聚丙烯基(CB/PP)复合材料的弹性模量、硬度及蠕变行为等力学性能进行了实验研究。结果表明

炭黑颗粒对CB/PP复合材料具有强化作用

随着炭黑含量的增加

复合材料的弹性模量和硬度增加。实验得出了纯PP及CB/PP复合材料蠕变应力指数和蠕变特征松弛时间

结果表明炭黑含量的增加增大了复合材料的蠕变应力指数

并且提高了硬度和抗疲劳性能。同时炭黑含量增加

复合材料的蠕变特征松弛时间减小

表明炭黑颗粒有效阻碍了聚合物分子链的移动。

Abstract

Mechanical properties such as elastic modulus

hardness and creep behavior of CB/PP composites filled with carbon black were studied by nanoindentation. The results shows that due to the strengthening effect of carbon black particles on CB/PP composites

elastic modulus and hardness of the composite increased with the increase of CB content. The creep stress index and creep characteristic relaxation time of pure PP and CB/PP composites were obtained

the results show that the increased content of CB not only increases the creep stress index of the composite but also improves the hardness and fatigue resistance. At the same time

with the increasing of CB

the creep characteristic relaxation time of the composite decreases

which indicate that the CB particles effectively hinder the movement of the polymer molecular chain.

关键词

纳米压痕弹性模量硬度蠕变应力指数蠕变特征松弛时间

Keywords

NanoindentationElastic modulusHardnessCreep stress indexCreep characteristic relaxation time

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