Rheological properties of calcium silicate‐filled isotactic polypropylene

Citation

Maiti, S. N. and Singh, Gurunam and Ibrahim, Mohd. Nordin (2002) Rheological properties of calcium silicate‐filled isotactic polypropylene. Journal of Applied Polymer Science, 87 (9). pp. 1511-1518. ISSN 0021-8995; eISSN: 1097-4628

Abstract

The melt rheological behavior of calcium silicate‐filled isotactic polypropylene, with filler volume contents of 0–17.8%, was determined at 493 K. The composites followed the power law in shear stress versus shear rate variations and were shear thinning. Initially, apparent melt viscosity decreased until a critical filler volume content of 8.5% was reached. However, on further increase in calcium silicate concentration, apparent melt viscosity increased. Melt elasticity also showed an initial decrease until 8.5% filler content was reached and then an increase beyond this filler content. Surface treatment of calcium silicate with a titanate coupling agent, LICA 38, modified the rheological properties because of the plasticizing/lubricating effect of LICA 38.

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Additional Metadata

Item Type:	Article
Divisions:	Faculty of Engineering
DOI Number:	https://doi.org/10.1002/app.11539
Publisher:	Wiley
Keywords:	Composites; Melt; Shear; Viscosity
Depositing User:	Ms. Zaimah Saiful Yazan
Date Deposited:	22 Jan 2025 07:23
Last Modified:	22 Jan 2025 07:23
Altmetrics:	http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1002/app.11539
URI:	http://psasir.upm.edu.my/id/eprint/113004
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