Novel preparation and characterization of porous alginate films
Novel preparation and characterization of porous alginate films
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DOI：
10.1016/j.carbpol.2009.10.025
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发表时间：
2010-03-17
影响因子：
11.2
通讯作者：
Donald, Athene
中科院分区：
文献类型：
--
作者：
Wang, Xiaoliang;Li, Xiang;Donald, Athene
采用一种新的方法制备了多孔海藻酸盐膜，在该方法中，表面张力相似但粘度不同的海藻酸盐溶液通过T形连接装置进行鼓泡，以生成海藻酸盐膜。系统研究了溶液流量、空气压力等鼓泡条件与气泡大小的关系。用光学显微镜、聚焦离子束/扫描电子显微镜和超声反射测量对所获得的薄膜进行了表征。结果表明，薄膜的厚度在1-40微米之间变化，最小值和最大值分别代表无气泡区域和含气泡区域。基于所获得的表征结果，推测了薄膜中气泡的可能结构。(C)2009爱思唯尔有限公司。保留所有权利。
Porous alginate films were prepared using a novel route in which alginate solutions of similar surface tensions but different viscosities were bubbled using a T-junction device to generate the films. The relationship between bubble size and bubbling conditions such as solution flow rate and air pressure was systematically investigated. The films obtained were characterized by optical microscopy, combined focused ion beam/scanning electron microscopy, and ultrasound reflection measurements. it is concluded that in a film, the thickness can be varied from 1-40 mu m, where the minimum and maximum represent bubble-free and bubble-containing areas, respectively. Based on the characterization results obtained, a possible structure for the bubbles in the films is hypothesized. (c) 2009 Elsevier Ltd. All rights reserved.