1. PREPARATION OF WOLLASTONITE COATED WITH NANO-ALUMINIUM SILICATE AND ITS APPLICATION IN FILLING PA6.
- Author
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WANG, CAILI, ZHENG, SHUILIN, LIU, GUIHUA, WANG, LIJING, HUANG, PENG, and WANG, ZHAOHUA
- Subjects
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WOLLASTONITE , *SILICATES , *COMPOSITE materials , *SILANE compounds , *ALUMINUM - 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. [ABSTRACT FROM AUTHOR]
- Published
- 2010
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