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標題Title: High strength of poly
作者Authors: 徐楓茜,凌銘鴻..等
上傳單位Department: 化學工程與材料工程系
上傳時間Date: 2009-11-30
上傳者Author: 徐楓茜
審核單位Department: 化學工程與材料工程系
審核老師Teacher: 林鴻儒
檔案類型Categories: 研討會報告Seminar Report
關鍵詞Keyword: hydrogel, silica, chitosan, acrylic acid
摘要Abstract: In this study, poly(acrylic acid)-chitosan-silica (PAA-Ch-Si) hydrogels to be used as a substitute for articular
cartilage were prepared by UV polymerization. These hydrogels formed an interpenetrating network structure
through the mixing of PAA with chitosan solutions. The physical properties of the prepared hydrogels were
characterized, including FT-IR, water content, morphology, mechanical strength, friction coefficient, rheological
and thermal analyses. The physical properties including elastic modulus, maximum compressive strength,
toughness, and cross-linking density, increased by incorporation of silica into PAA-Ch hydrogels. PAA-Ch-Si
hydrogel has high water content, low friction coefficient, and high tanδ, which is feasible to be used as a substitute
for cartilage repair.

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