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Rubber particle agglomeration phenomena in acrylonitrile‐butadiene‐styrene (ABS) polymers. I. Structure‐property relationships study on rubber particle agglomeration and molded surface appearance
Author(s) -
Chang M. C. O.,
Nemeth R. L.
Publication year - 1996
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19960808)61:6<1003::aid-app14>3.0.co;2-x
Subject(s) - natural rubber , economies of agglomeration , materials science , composite material , acrylonitrile , particle size , particle (ecology) , polymer , gloss (optics) , copolymer , polymer chemistry , chemical engineering , coating , oceanography , engineering , geology
The effects of molecular structures of ABS fabricated under a severe molding condition on rubber particle agglomeration and molded specular gloss were studied. An agglomeration index ( N P ) obtained by measuring particle size was used to determine the degree of rubber particle agglomeration. It was found that as graft level decreased, agglomeration increased. The rubber particle agglomeration also increased when graft molecular weight was increased. Lowering the particle size also led to a higher degree of agglomeration. Furthermore, increasing the compositional acrylonitrile mismatch between the grafted and matrix styrene‐acrylonitrile copolymers increased the rubber particle agglomeration. Molecular structures that increased rubber particle agglomeration decreased the molded gloss. © 1996 John Wiley & Sons, Inc.