Universiti Teknologi Malaysia Institutional Repository

Mechanical properties of talc- and (calcium carbonate)-filled poly(vinyl chloride) hybrid composites

Bee, Soo Tuen and Hassan, Azman and Abu Bakar, Aznizam (2012) Mechanical properties of talc- and (calcium carbonate)-filled poly(vinyl chloride) hybrid composites. Journal Of Vinyl And Additive Technology, 18 (2). pp. 76-86. ISSN 1083-5601

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1002/vnl.20280

Abstract

The main objective of this study was to investigate and compare the mechanical properties of poly(vinyl chloride) (PVC) composites filled with calcium carbonate (CaCO3), talc, and talc/CaCO3. Talc and CaCO3 with different grades were incorporated into the PVC matrix. To produce the composites, the PVC resin, fillers, and other additives were first dry‐blended by using a laboratory mixer before being milled into sheets in a two‐roll mill. Test specimens were prepared by compression molding, after which the mechanical properties of the composites were determined. Single and hybrid filler loadings used were fixed at 30 phr (parts per hundred parts of resin). Talc‐filled composite showed the highest flexural modulus and the lowest impact strength, whereas uncoated, ground, 1‐μm CaCO3 (SM 90) showed optimum properties in terms of impact strength and flexural modulus among all grades of CaCO3. It was selected to combine with talc at different ratios in the hybrid composites. The impact strength of the hybrid composites gradually increased with increasing SM 90 content, but the flexural and tensile properties showed an opposite behavior. Hybrid (10 phr talc):(20 phr SM 90)‐filled PVC composite reached a synergistic hybridization with balanced properties in impact strength, as well as flexural and tensile properties.

Item Type:Article
Uncontrolled Keywords:calcium carbonate, hybrid composites, flexural modulus
Subjects:T Technology
Divisions:Chemical Engineering
ID Code:47196
Deposited By: Narimah Nawil
Deposited On:22 Jun 2015 05:56
Last Modified:31 Mar 2019 08:34

Repository Staff Only: item control page