SURFACE PROPERTIES OF CHITOSAN COMPOSITES WITH POLY(VINYL ALCOHOL) AND HYDROXYAPATITE

被引：2

作者：

Lewandowska, Katarzyna ^{[1
]}

机构：

[1] Nicolaus Copernicus Univ Torun, Fac Chem, Ul Gagarin 7, PL-87100 Torun, Poland

来源：

PROGRESS ON CHEMISTRY AND APPLICATION OF CHITIN AND ITS DERIVATIVES | 2015年 / 20卷

关键词：

chitosan; poly(vinyl alcohol); hydroxyapatite; composites; AFM; surface properties;

D O I：

10.15259/PCACD.20.17

中图分类号：

TB3 [工程材料学]; R318.08 [生物材料学];

学科分类号：

0805 ; 080501 ; 080502 ;

摘要：

Surface properties of composites containing chitosan (Ch), poly(vinyl alcohol) (PVA) with hydroxyapatite (HAP) were investigated by contact angle measurements and atomic force microscopy (AFM). Thin films of Ch/HAP and Ch/PVA/HAP composites have been formed by casting methods from acetic acid solutions. Measurements of the contact angle for diiodomethane (D), and glycerol (G) on the surface of chitosan films, Ch/HAP and chitosan/PVA/HAP films were made and surface free energy was calculated. It was found that chitosan/HAP or Ch/PVA/HAP blend surface is enriched in high surface energy component i.e. chitosan. The study of composites by AFM showed a completely different morphology when compared with unmodified components. The roughness of composites increase after the addition of hydroxyapatite. This may indicates a strong interaction between the polymeric components and inorganic additive.

引用

页码：177 / 182

页数：6

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