TITLE:
Effects of Polysilane-Coating on Interface of Electrofusion Joints for Maintaining Strength
AUTHORS:
Hiroaki Murase, Shinichi Kawasaki, Toshimichi Kitaoka, Jouji Furukawa, Hirofumi Ueda, Hiroyuki Nishimura, Kazushi Yamada
KEYWORDS:
Polysilane, Electrofusion Joint
JOURNAL NAME:
Materials Sciences and Applications,
Vol.6 No.4,
April
14,
2015
ABSTRACT: The fusion strength of electrofusion joints using the polyethylene (PE) pipe connection greatly
depends on the amount of sand which adheres to the interface by wind and so on, because there is
no flow of melted resin at the fusion interface on electrofusion joints. Therefore, it is necessary to
develop a method to prevent the fusion strength from reducing even in the case of sand adhesion.
In this study, the fusion interface coated with polysilane, a kind of silicon polymer, effectively
prevented the reduction of the fusion strength even if contaminated by sand. It was found that it
brought the improvement of the fusion strength since when there was polysilane on the fusion interface.
PS deeply permeated the polyethylene layer and lowered the viscosity of polyethylene.