期刊
POLYMER
卷 42, 期 24, 页码 9837-9842出版社
ELSEVIER SCI LTD
DOI: 10.1016/S0032-3861(01)00506-7
关键词
nanocomposites; organoclay; poly(styrene-co-acrylonitrile)
Poly(styrene-co-acrylonitrile) (SAN)/organoclay nanocomposites were prepared using poly(epsilon -caprolactone) (PCL) as a compatibilizer. Two-step mixing sequence was used to prepare the SAN nanocomposites: PCL/organoclay master batches with different degree of intercalation were prepared by melt mixing first, and then they were melt-mixed with SAN, where PCL is miscible with SAN. The intercalation behavior of PCL in the master batches was investigated in terms of the type of organic modifier and mixing conditions such as shear rate, mixing temperature and mixing time. Longer mixing time and lower mixing temperature were required to prepare exfoliated PCL master batches. As the degree of exfoliation of clays becomes better, the stiffness reinforcement effect of the organoclays organoclay master batches and their blends with SAN. (C) 2001 Elsevier Science Ltd. All rights reserved.
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