EB radiation crosslinking of elastomers

被引:40
|
作者
Bik, J
Gluszewski, W
Rzymski, WM
Zagórski, ZP [1 ]
机构
[1] Inst Nucl Chem & Technol, Dept Radiat Chem & Technol, PL-03195 Warsaw, Poland
[2] Tech Univ Lodz, Inst Polymer, PL-90924 Lodz, Poland
关键词
crosslinking; elastomers; electron beam; multi-ionization spur; single-ionization spur;
D O I
10.1016/S0969-806X(03)00078-1
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
Radiation-induced crosslinking is proposed as successful alternative to conventional, chemical methods of crosslinking of elastomers. Hydrogenated acrylonitrile-butadiene rubber was irradiated with 10 MeV electron beam to doses up to 300 kGy. Irradiated samples were investigated for the extent of crosslinking and for properties important for understanding of mechanisms. It follows from sol-gel analysis, that for 100 crosslinking acts there are 6-9 acts of chain scission. It is less than expected from the 20% participation of multi-ionization spurs, also in the solid state, as announced during the previous 9th Tihany Conference (Radiat. Phys. Chem. 56 (1999) 559). However, the apparent too low yield of multi-ionization spurs could be explained by partial conversion of scission products into crosslinks of specific trifunctional Y type. Our investigations confirm the usefulness of consideration of different radiation spurs in polymers, as well as in all, low LET irradiated media. (C) 2003 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:421 / 423
页数:3
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