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《Acta Materiae Compositae Sinica》 2001-02
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POLY(DL-LACTIDE)/HYDROXYAPATITE COMPOSITE: (Ⅳ) SURFACE MODIFICATION OF HYDROXYAPATITE AND ITS EFFECT ON THE INTERFACIAL INTERACTION OF THE COMPOSITES

QUAN Da ping, LIAO Kai rong, LU Ze jian, WANG Hai hua (Institute of Polymer Science, Zhongshan University, Guangzhou 510275, China)  
Hydroxyapatite particles were modified by 3 (trimethoxysilyl) propyl methacrylate (A 174) and polyacrylic acid (PAA) in aqueous solutions respectively. Poly(DL lactide)/hydroxyapatite(PDLLA/HA) composites were prepared by solution dispersion compounding and composites rods with diameter 3.2 mm were achieved by oriented molding. Results showed that the glass transition temperature of PDLLA in composites and the bending strength of the composites were increased because of enhancement of the interfacial bonding of the composites.
【Fund】: 广东省自然科学基金资助项目!(970 16 0 96 0 0 2 0 )
【CateGory Index】: TB332
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