Effects of titanate coupling agent on rheological behaviour, dispersion characteristics and mechanical properties of talc filled polypropylene

Chuah, Ai Wah and Leong, Yub Choong and Gan, Seng Neon (2000) Effects of titanate coupling agent on rheological behaviour, dispersion characteristics and mechanical properties of talc filled polypropylene. European Polymer Journal, 36 (4). pp. 789-801. ISSN 0014-3057

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Official URL: https://doi.org/10.1016/S0014-3057(99)00123-8

Abstract

A commercially available titanate coupling agent, LICA 12 from Kenrich Petrochemicals was used to study its effect on talc filled polypropylene. It was found that the melt viscosity of the filled PP decreased and dispersion quality was improved in the presence of coupling agent. Further investigation on molecular weight distribution (MWD) shows that polypropylene (PP) molecules have undergone some chain scission and coupling reactions resulting in a broader MWD. Glass transition temperature (Tg) measurement revealed the plasticising effect caused by coupling agent, which has imparted changes in morphological character and mechanical properties. Tensile and flexural properties were observed to decrease whilst impact and elongation properties were improved with the incorporation of coupling agent in the filled system.

Item Type: Article
Uncontrolled Keywords: Composition effects; Glass transition; Molecular weight distribution; Morphology; Rheology; Temperature measurement; Tensile properties; Titanium compounds; Viscosity
Subjects: T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 06 Apr 2021 04:16
Last Modified: 06 Apr 2021 04:16
URI: http://eprints.um.edu.my/id/eprint/25834

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