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Home > Scientific Research > Paper Publications

Water-Swellable Thermoplastic Vulcanizates Based on Ethylene-vinyl Acetate Copolymer/Cross-linked Sodium Polyacrylate/Chlorinated Polyethylene

Release time:2021-03-15 Hits:

Key Words:Chlorinated polyethylene; Cross-linked sodium polyacrylate; Dynamically vulcanization; Ethylene-vinyl acetate copolymer; Swelling; Water-swellable rubbers
Abstract:A novel water-swellable rubber (WSR) was prepared by dynamically vulcanizing ethylene-vinyl acetate copolymer (EVA)/chlorinated polyethylene (CPE) blends where the cross-linked poly (sodium acrylate) (CPNaAA) was used as a super water-absorbent resin and dispersed in the CPE rubber. Experimental results showed that the mechanical properties of TPVs decreased while the water-swelling ratio increased significantly with increasing of CPNaAA dosages, the swelling ratio of 60phr CPNaAA TPVs reaching 746.1% at 93h. Morphological study showed that the CPNaAA particles were dispersed randomly in the TPVs; Some significant gaps and large cavities could be found in the surface of dried TPVs.
Volume:52
Issue:7
Translation or Not:no