幾丁聚醣3D多孔材之製造與其物化性之探討

Preparation of Chitosan 3D Porous Material and Their Mechanical Properties

邱培源(P. Y. Chiu) ； 張志鵬(C. P. Chang)

《華岡紡織期刊》 12卷4期 (2005/12) Pp. 424-431

https://doi.org/10.29984/JHGT.200512.0012

摘要

3D多孔材應用廣泛而且其孔隙大小直接影響材料的物化性。本研究試以幾丁聚醣為基材原料，經改變幾丁聚醣濃度與控制攪拌轉速、溫度等之條件製造出不同孔隙大小之多孔材。所得之樣本以SEM確認其成形性、以FTIR鑑定其結構的變化、以DMA分析探討其機械性質。結果顯示幾丁聚醣在2%, NaOH在5%可以得到較佳成形的樣本。均質機攪拌速度越快樣本孔隙越小，但是轉速達4000rpm後孔隙大小變化不大。若改變樣本復處理溫度則會降低樣本之結構且溫度到達80℃時會有過度收縮破壞孔隙現象發生。

關鍵字

多孔 ； 幾丁聚醣 ； 冷凍乾燥

並列摘要

In this study, 3D Chitosan porous materials were prepared by changing the concentration of chitosan, control the stirring rate and after-treated temperature. In order to investigate the porous properties, the structure was evaluated with SEM, to assess the component with FTIR and to analyze the mechanical properties with DMA. The results indicated that the optimal condition was at 2% chitosan and 5% NaOH. The more stirring rate of homogenizer is fast, the less sample porous is small, but no obviously different over stirring rate of 4000 rpm. To change sample after-treated temperature could destroy the structure of porous especially at 80℃.

並列關鍵字

Porous ； Chitosan ； Freeze Drying