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The Relationship between Microstructure and Properties in PP/Rubber Powder/nano‐CaCO 3 Ternary Blends
Author(s) -
Su Xinqing,
Hua Youqing,
Qiao Jinliang,
Liu Yiqun,
Zhang Xiaohong,
Gao Jianming,
Song Zhihai,
Huang Fan,
Zhang Manli
Publication year - 2004
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.200300209
Subject(s) - materials science , natural rubber , microstructure , styrene butadiene , composite material , nano , ternary operation , izod impact strength test , slurry , copolymer , styrene , polymer , ultimate tensile strength , computer science , programming language
Summary: A new kind of rubber powder with “salami” structure (RPS) was prepared by spray drying the mixture of styrene‐butadiene rubber latex and nano‐CaCO 3 slurry. It was found that RPS is an effective toughener with synergistic toughening effect on poly(propylene) (PP). The Izod impact strength of PP/RPS blend is not only higher than that of PP/rubber powder or PP/nano‐CaCO 3 blends, but also higher than that of a PP/rubber powder/CaCO 3 blend. TEM images show that the microstructure of the PP/RPS blend is an “island‐sea” structure with “salami” structure in RPS, in which nano‐CaCO 3 particles are embedded in styrene‐butadiene rubber particles. The relationship between properties and microstructure has been studied by using TEM, SEM, DSC, etc.