Relationship between Graft Structure and Effect of Added Silicone Fluid on Izod Impact Strength of ABS Resins

Katsuhiko KURATANI* and Kotaro OGURA

Research Group, Ube Cycon Co., LTD.; 525-14 Oki-ube, Ube-shi 755-8580 Japan
Department of Applied Chemistry, Yamaguchi University; 2557 Tokiwadai, Ube-shi 755-0031 Japan

The behavior of Izod impact strength of acrylonitrile-butadiene-styrene (ABS) resins with the addition of silicone fluid has been investigated using some graft structure. Poly (dimethylsiloxane) was used as silicone fluid, and added to the resins in the range of 0 to 0.1 wt%. In the case of lower graft density, Izod impact strength was almost the same as that observed in the absence of silicone fluid, though, the effect of added silicone fluid was marked in the case of higher graft density. Therefore, it was suggested that silicone fluid exists at near the rubber phase and gives a significant effect to the initiation of craze by contributing to the entanglement of graft phase and matrix phase.

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