Blends of a maleic anhydride-grafted polypropylene (m-PP) and a liquid crystalline polymer (LCP) based on a copolyester of hydroxynapthoic acid and hydroxybenzoic acid were fabricated. The morphology and isothermal and nonisothermal crystallization kinetics behavior of the m-PP copolymer and m-PP/LC
Polymer blends of polypropylene with polydialkylsiloxane
β Scribed by Yukio Mizutani; Shinichi Kawahara; Masahiro Takesue; Shingo Matsui; Hidetoshi Kawamura
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 406 KB
- Volume
- 67
- Category
- Article
- ISSN
- 0021-8995
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β¦ Synopsis
Polypropylene was blended with polydialkylsiloxane (alkyl : propyl and octyl). Some properties of the resultant polymer blends were investigated: the melt flow index at 230ΠC, bending modulus, and Izod impact strength. Furthermore, their morphology was observed using scanning and transmission electron microscopes. It was elucidated that polydipropylsiloxane and polydioctylsiloxane, which are finely dispersed as ciliated islands in the sea of polypropylene, are effective to increase the melt flow index and Izod impact strength of the polymer blends.
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The mechanical properties, melt rheology, and morphology of binary blends comprised of two polypropylene (PP) grades and two liquid crystalline polymers (LCP) have been studied. Compatibilization with polypropylene grafted with maleic anhydride (PP-g-MAH) has been attempted. A moderate increase in
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