Free-Volume Changes in EVA Composites Studied by Positron Annihilation Lifetime Technique

被引：0
|
作者：
Aly, E. Hassan [1 ]
Gomaa, E. [1 ]
Mansour, S. H. [1 ]
Krause-Rehberg, R. [1 ]
机构：
[1] Ain Shams Univ, Dept Phys, Fac Sci, Cairo 11566, Egypt
来源：
KGK-KAUTSCHUK GUMMI KUNSTSTOFFE | 2015年 / 68卷 / 04期
关键词：
Composites; carbon black; PAL; free volume; EVA; ACETATE); TRANSITIONS; COPOLYMERS; DEPENDENCE; BLENDS; BLACK;
D O I：
暂无
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The influence of different concentrations (0 - 60 wt %) of carbon black (HAF) filler on macrostructure and microstructure of ethylene vinyl acetate (EVA) composites was studied through electrical, mechanical measurements and positron annihilation lifetime (PAL) spectroscopy. The electrical conductivity measurements showed an abrupt increase when the concentration of HAF reaches 30 wt%. This increase indicates the tendency of conductivity chain formation through the aggregation of carbon black particles network. The size and the fraction of free- volume holes revealed that the free-volume properties were strongly affected by the amount of filler.
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收藏
页码：33 / 37
页数：5
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