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Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK)

Changsha,China,10.16-10.18,2010

ISBN: 978-1-935068-41-9 Scientific Research Publishing, USA

E-Book 2313pp Pub. Date: October 2010

Category: Chemistry & Materials Science

Price: $360

Title: Polyethylene Foam Materials Cross-Linked by Dicumyl Peroxide
Source: Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK) (pp 1708-1711)
Author(s): Si Chen, College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310014, China
Guo-dong Tang, College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310014, China
Jian-ming Xu, College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310014, China
Jing-kai Yan, College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310014, China
Xu Wang, College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310014, China
Abstract: The effect of Dicumyl peroxide (DCP) content on the crosslink of Low-density polyethylene (LDPE) was studied via torque rheometer. The results showed that the increasing of DCP content can improve the crosslink degree of LDPE. The raise of temperature could shorten the starting time of crosslink of LDPE which began to crosslink at 400s in 135℃ whereas 200s in 145℃. The blowing multiple of LDPE first increased then decreased with the increasing of DCP content when the addition of AC blowing agent was constant. Adding 0.4phr DCP could make LDPE foam reach 10 times expansion when AC content was 1phr. The shape of air pores of LDPE foam was observed by video microscopy. It was found that adding 0.2~0.6phr DCP can get small diameter and homogeneous distribution air pores.
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