EFFECT OF MECHANICAL PRE-CONDITIONING ON FRACTURE RESISTANCE OF POLYPROPYLENE

Liang Han; Fang-ming Xiang; Yan-li Li; Ting Huang; Yong Wang; Ji-hong Zhang

doi:10.1007/s10118-011-1038-6

Your Location：

Home >

Browse articles >

EFFECT OF MECHANICAL PRE-CONDITIONING ON FRACTURE RESISTANCE OF POLYPROPYLENE

Paper | Updated：2021-06-21

- EFFECT OF MECHANICAL PRE-CONDITIONING ON FRACTURE RESISTANCE OF POLYPROPYLENE
- EFFECT OF MECHANICAL PRE-CONDITIONING ON FRACTURE RESISTANCE OF POLYPROPYLENE
- Chinese Journal of Polymer Science 2011年29卷第3期页码：318-324
- Affiliations：
  
  Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
- Author bio：
  
  **Yong Wang (王勇), E-mail: yongwang1976@163.com
- Funds：
  
  National Natural Science Foundation(50973090);Program for New Century Excellent Talents in Universities(NCET-08-0823);Sichuan Youthful Science and Technology Foundation(07ZQ026-003)
- DOI：10.1007/s10118-011-1038-6
  中图分类号：
- 收稿：2010-04-12，
  
  修回：2010-05-17，
  
  录用：2010-05-28，
  
  纸质出版：2011
- Accepted：
Scan QR Code
Liang Han, Fang-ming Xiang, Yan-li Li, 等. EFFECT OF MECHANICAL PRE-CONDITIONING ON FRACTURE RESISTANCE OF POLYPROPYLENE[J]. Chinese Journal of Polymer Science, 2011,29(3):318-324.

Liang Han, Fang-ming Xiang, Yan-li Li, et al. EFFECT OF MECHANICAL PRE-CONDITIONING ON FRACTURE RESISTANCE OF POLYPROPYLENE[J]. Chinese Journal of Polymer Science, 2011, 29(3): 318-324.
Liang Han, Fang-ming Xiang, Yan-li Li, 等. EFFECT OF MECHANICAL PRE-CONDITIONING ON FRACTURE RESISTANCE OF POLYPROPYLENE[J]. Chinese Journal of Polymer Science, 2011,29(3):318-324. DOI： 10.1007/s10118-011-1038-6.

Liang Han, Fang-ming Xiang, Yan-li Li, et al. EFFECT OF MECHANICAL PRE-CONDITIONING ON FRACTURE RESISTANCE OF POLYPROPYLENE[J]. Chinese Journal of Polymer Science, 2011, 29(3): 318-324. DOI： 10.1007/s10118-011-1038-6.

摘要

Abstract

The effect of externally applied mechanical pre-conditioning

i.e

. pre-impact treatment

on the fracture resistance was investigated for polypropylene (PP). Impact strength was obtained

via

notched and/or unnotched samples. It has been shown that the pre-impact treatment is favorable to the improvement of the fracture resistance. The impact strength increases linearly with the applied pre-impact energy. Both optical and SEM results show that there are at least two possible mechanisms for the improvement of the fracture resistance. One is the crack blunting effect which is introduced to notched sample by pre-impact treatment

reducing the sensitivity of PP to the applied notch. The other is the formation of large amount of microvoids induced by pre-impact treatment

which changes the stress distribution and induces intensive plastic deformation of PP at the second impact measurement

leading to the improvement of the fracture resistance.

关键词

Keywords

references

浏览量

Downloads

CSCD

文章被引用时，请邮件提醒。

Submit

工具集

关联资源

The Toughening Behavior of the PP/POE Alternating Multilayered Blends under EWF and Impact Tensile Methods

Energy Storage Performance of Supercapacitors with Polyelectrolyte Surface Coatings: Effects of Dielectric Contrast

Molecularly Engineered Polyimide Films with Switchable Cavitation for Bidirectional Passive Thermal Regulation

Enhancing Processability of Phenylethynyl-terminated Imide Oligomers and Properties of Cured Polyimides via ―CF3 Incorporation

A Paradigm for BF3 Co-initiated Cationic Polymerization with Low Dispersity: Introducing Acetonitrile and Lowering the Reaction Temperature