Citation: . STUDY ON NYLON 6/SUPERFINE RUBBER PARTICLES COMPOSITES VIA IN SITU POLYMERIZATION[J]. Chinese Journal of Polymer Science, ;2003, 21(3): 339-346. shu

STUDY ON NYLON 6/SUPERFINE RUBBER PARTICLES COMPOSITES VIA IN SITU POLYMERIZATION

Received Date: 26 April 2002
Revised Date: 17 June 2002

Two highly cross-linked superfine styrene-butadiene rubber particles, one with 1 wt% of carboxyl groups and theother without such groups having particle sizes of 130-150 nm and 80-100 nm respectively, were used to prepare nylon6/rubber composites via in situ polymerization. It was found that carboxylic styrene-butadiene dispersed uniformly in nylonmatrix and there was strong interfacial interaction because of the graft polymer formed by the reaction of nylon with carboxylgroup of the rubber, resulting in considerably improved impact strength with almost unchanged tensile strngth.However,the addition of styrene-butadiene without carboxyl groups showed intensive agglomeration of the rubber particles and weak interfacial interactions,and the toughness of the materials was improved slightly.The crystallization and rheological behavior of the composites were also discussed.
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