Investigation on the electron-beam curing of vinylester resin

被引：0

作者：

Huang Xiancong ^{[1
]}

Shi Meiwu ^{[2
]}

Zhou Guotai ^{[2
]}

Zhou Hong ^{[2
]}

Hao Xiaopeng ^{[3
]}

Zhou Chunlan ^{[4
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Technol, Shanghai 200240, Peoples R China

[2] CPLA, Inst Gen Logist Dept, Soldier Syst Ctr Quartermaster, Beijing 100088, Peoples R China

[3] Chinese Acad Sci, High Energy Nucl Phys Inst, Beijing 100095, Peoples R China

[4] Beijing Normal Univ, Inst Low Energy Nucl Phys, Beijing 100875, Peoples R China

来源：

RADIATION PHYSICS AND CHEMISTRY | 2008年 / 77卷 / 05期

关键词：

vinylester resin; electron-beam irradiation; structure; curing; gel fraction;

D O I：

10.1016/j.radphyschem.2007.11.2006

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A typical vinylester resin, Derakane 411-350, was electron-beam (EB) cured without initiators. The curing process was investigated by gel-fraction testing, FTIR and Raman spectroscopies. Both dynamic numerical analysis and positron annihilation life spectroscopy were utilized to analyze the microstructure of resin samples irradiated with different doses and dose rates. Resin irradiated with the same dose at a low dose rate achieved a higher degree of cure than those samples irradiated with a high dose rate. Resin irradiated with low dose rates had a lower free-volume fraction with smaller interstices and a more uniform microstructure. The glass-transition temperature of the resin increased with increasing irradiation dose. The mechanical properties of the EB-cured resin confirmed the analysis of changes in microstructure arising from irradiation. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：643 / 655

页数：13

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