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  5. 纖維素薄膜製備和特性於化粧品的應用潛力
 
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纖維素薄膜製備和特性於化粧品的應用潛力

Other Title
Preparation and Characterization of Cellulose Polymer Films for Potential Cosmetic Application
Type
thesis
Date Issued
2011-06-22
Author(s)
黃柏渝
Advisor
蔡翠敏
Subjects
系所名稱:生醫材料暨工程研究所
Description
學位別:碩士
語文別:中文
指導教授:蔡翠敏
共同指導教授:
口試委員:楊昭順;楊正昌
中文關鍵字:甘醇酸;水楊酸;薄膜;pH;抗菌效果;承載率
Abstract
果酸在化粧品中常廣泛的使用於皮膚脫屑或換膚,此實驗中嘗試使用高分子量的纖維素聚合物來製作成薄膜的劑型,並嘗試在薄膜的劑型中承載不同性質的甘醇酸(親水性物質)和水楊酸(疏水性物質),並分析兩種物質在製備成薄膜後的pH值、表陎特性、含水量和承載率。
薄膜製備中選擇了多種不同的高分子材料,當中的甲殼素主要是做為提供抗菌效果的主要成分,並使用羥丙基甲基纖維素 ( hydroxypropyl methylcellulose, HPMC )、羥丙基纖維素 ( hydroxypropyl cellulose, HPC) 和羧甲基纖維素 ( carboxymethylcellulose, CMC)作為承膜的材料。在低pH值環境中HPMC和HPC的使黏稠度下降,相較於HPMC和HPC,CMC的黏稠度較不受pH變化而影響,在劑型中增加HPMC和CMC的比例可以增加薄膜的硬度,但是相對的會使得薄膜的彈性下降,而在比例中增加HPC的含量則會使的薄膜更加柔軟和更有彈性。在材料中選擇citrate buffer主要是做為緩衝溶液,使薄膜在製備後或者貼覆於皮膚時的pH值能夠符合台灣衛生署的規定。材料選擇中使用Glycerol和Polyethylene glycol 400做為塑化劑,在劑型中用來增加薄膜的膨潤度、吸濕性和含水量。
URI
https://203.71.86.71/handle/123456789/13452

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