Investigation on fracture toughness of polytetrafluoroethylene with impact essential work of fracture method

被引：3

作者：

Armagan, Mustafa ^{[1
,2
]}

Arici, A. Armagan ^{[2
]}

机构：

[1] Istanbul Medeniyet Univ, Directorate Construct Tech Works, D-100 Hiwy 8, TR-34720 Istanbul, Turkey

[2] Kocaeli Univ, Dept Mech Engn, TR-41001 Izmit, Turkey

来源：

POLYMERS & POLYMER COMPOSITES | 2021年 / 29卷 / 9_SUPPL期

关键词：

Impact essential work of fracture; fracture toughness; polymer; polytetrafluoroethylene; filled-PTFE; Charpy test; scanning electron microscope; GLASS-FIBER; COMPOSITES;

D O I：

10.1177/09673911211003392

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Polytetrafluoroethylene (PTFE) polymer has a wide range of applications in various industries. Therefore, for designers it is essential to know the strength properties of the material under dynamic loads. In this study, pure-PTFE, bronze and carbon filled-PTFE are tested under dynamic load. In addition, pure and carbon filled specimens were used to determine the temperature effect of PTFE. All tests were carried out in the Charpy impact device according to impact essential work of fracture method. At 23 degrees C, pure-PTFE showed the highest impact strengths, bronze filled-PTFE and carbon filled-PTFE showed lower respectively and it has been found that the carbon filler increases the fracture toughness approximately two times at high temperature (I 50 degrees C). On fracture surfaces phase transitions effects of PTFE and behavior of fillers used were investigated with Scanning Electron Microscope.

引用

页码：S335 / S343

页数：9

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