PREPARATION OF WOLLASTONITE COATED WITH NANO-ALUMINIUM SILICATE AND ITS APPLICATION IN FILLING PA6

Caili Wang (), Shuilin Zheng, Guihua Liu, Lijing Wang, Peng Huang and Zhaohua Wang
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Caili Wang: School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China;
Shuilin Zheng: School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China;
Guihua Liu: School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China;
Lijing Wang: School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China;
Peng Huang: School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China;
Zhaohua Wang: School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China;
Authors registered in the RePEc Author Service: Zhao-Hua Wang ()

Surface Review and Letters (SRL), 2010, vol. 17, issue 02, 265-270

Abstract: Taking wollastonite as raw material, aluminium sulfate and water glass as coating modifier, a new type of wollastonite coated with nano-aluminium silicate powder-materials was obtained by chemical depositing method. By modificating this powder-materials with silane and filling it in PA6, the PA6 composite materials were obtained. The modificated powder-materials were characterized by SEM, BET, XRD, EDX, and FT-IR. The mechanism of this powder-materials modificated by silane was discussed. It was shown that the surface of wollastonite was coated with nano-aluminium silicate evenly, the average grain size of aluminium silicate was 54 nm, filling 30% of this powder-materials modified by silane in PA6, the mechanical properties and the heat distortion temperature of the PA6 composites filled by it were notably enhanced.

Keywords: Wollastonite; aluminium silicate; surface modification; PA6 (search for similar items in EconPapers)
Date: 2010
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DOI: 10.1142/S0218625X10014144

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