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Type: Journal article
Title: Mineral filler reinforcement for commingled recycled-plastic materials
Author: Putra, H.
Ngothai, Y.
Ozbakkaloglu, T.
Seracino, R.
Citation: Journal of Applied Polymer Science, 2009; 112(6):3470-3481
Publisher: John Wiley & Sons Inc
Issue Date: 2009
ISSN: 0021-8995
Statement of
H. D. Putra, Y. Ngothai, T. Ozbakkaloglu, R. Seracino
Abstract: Three types of mineral fillers, gypsum, wollastonite, and talc, were investigated for their ability to modify the mechanical properties of commingled recyded-plastic composites containing 0.07-0.26 v/v of filler. Mechanical test results showed that the talc reinforced composites were significantly better in mechanical properties when compared with the gypsum and wollastonite composites. Scanning electron microscopy (SEM) showed that gypsum formed large agglomerates in the matrix. Interfacial adhesion between filler and matrix was evaluated using simple empirical models. To enhance the adhesion, talc, and wollastonite were pretreated with silane coupling agents, 3-methacryloxypropyltrimethoxy silane (γ-MPS) and 3-aminopropyltriethoxy silane (γ-APS). This did not result in any significant improvement to the material properties. The γ-APS treatment, however, increased the tensile properties of the composites by ~ 5% when compared with the y-MPS treatment. The SEM investigations showed that the γ-APS treatment provided better adhesion of filler particles and hence voids were less likely to form in the matrix when compared with the γ-MPS composites. © 2009 Wiley Periodicals, Inc.
Keywords: commingled recycled plastic
mineral fillers
Description: Copyright © 2009 Wiley Periodicals
DOI: 10.1002/app.29861
Appears in Collections:Aurora harvest 5
Chemical Engineering publications

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