English Abstract
Cross-Linked PTFE and Applied products
Yasuaki Yamamoto,Akira Setogawa,Hajime,Nishi 
Third Division,Research and Development Center,Hitachi Cable,Ltd.,Ibaraki,Japan.
Nippon Gomu Kyokaishi,(2003),76(5), 173-177 General Review in Japanese.

Previously, polytetrafluoroethylene (PTFE) was believed to be a typical polymer decomposed by ionizing radiation. However, it was found that, when PTFE is heated to a high temperature near its melting point and subjected to ionizing radiation under an inert gas atmosphere, a cross-linking reaction occurs between its atoms. Technology based on this discovery was developed in Japan.The cross-linking technology and its characteristics were examined. We found that cross-linked PTFE drastically improves abrasion resistance and creep resistance. We established the elemental technology based on cross-linking.At present, we have developed a wide selection of basic materials according for various uses and furthured the development of applied products.

PTFE,Ionizing radiation,Cross-linking,Abrasion resistance,Creep resistance