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 60 phr CPNaAA TPVs reaching 746.1% at 93 h. 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.
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