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Preparation and properties of PC/SAN alloy modified with styrene‐ethylene‐butylene‐styrene block copolymer
Author(s) -
Yin Nianwei,
Zhang Yinxi,
Zhang Yong,
Zhang Xiangfu,
Zhou Wen
Publication year - 2007
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/app.26681
Subject(s) - vicat softening point , materials science , izod impact strength test , copolymer , ultimate tensile strength , flexural strength , polycarbonate , alloy , composite material , acrylonitrile butadiene styrene , flexural modulus , heat deflection temperature , styrene , softening point , polymer
A polycarbonate (PC)/ poly (styrene‐ co ‐acrylonitrile) (SAN) alloy modified with styrene‐ethylene‐butylene‐styrene (SEBS) block copolymer was prepared and the influence of SEBS content, PC content, and types of modifier on Izod notched impact strength, tensile strength, flexural strength, and Vicat softening temperature was studied. The results showed that the addition of SEBS could obviously increase the Izod notched impact strength and the elongation at break and decrease the tensile and flexural strength and Vicat softening temperature. PC/SAN alloy modified with SEBS had better mechanical properties than the PC/SAN alloy modified with ABS. DSC analysis and SEM photographs revealed that the SEBS was not only distributed in the SAN phase but also distributed in PC phase in a PC/SAN/SEBS alloy while the ABS was mainly distributed in SAN phase in a PC/SAN/ABS alloy. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007

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