膜科学与技术

聚醚砜微图案膜的模板法制备及性能表征

作者：万伟娜¹，²，张玉忠¹，²，林立刚¹，²，丁晓莉¹，²，李泓¹，²

单位： 1.天津工业大学材料科学与工程学院, 天津 300160;

关键词：膜；微图案；聚醚砜；模板

出版年,卷(期):页码： 2012,32(4):1-5

摘要：

膜的微图案化以其在组织工程学、微流控装置、微接触印刷多孔模型等领域的潜在应用前景近年备受研究者关注。以聚醚砜(PES)为基质膜材料，利用微图案硅片为模板，通过非溶剂致相分离法（NIPS）制备了PES微图案膜，研究了制膜条件对膜表面微图案及膜结构、性能的影响，考察了图案化前后PES膜的水通量、接触角、孔隙率、拉伸强度性能差异。结果表明：以模板法制得的PES膜表面呈现规整的微图案，且膜表面微图案的规整性随铸膜液中PES浓度的增加而提高。接触角、孔隙率和水通量测试表明，相对于PES原膜，制得的微图案膜具有较高的接触角和较高的孔隙率及水通量；机械性能测试表明，图案化前后膜的拉伸强度变化不大。

Micro-patterned membrane has an expansive prospect in many fields, such as tissue scaffolds, micro-fluidic devices and porous molds for micro-contact printing, which has caused attention by the researchers in recently years. Perfectly micro-patterned polyethersulfone (PES) membrane was produced by non-solvent induced phase separation (NIPS) using a micro-structured wafer mold, and the effects of preparing conditions on the characters of micro-pattern, structure and performance were carefully studied. Using the micro-pattern mold the fabrication of micro-patterned membrane with tunable properties such as water flux, water contact angle, porosity and tensile strength were described. The results shown that micro-patterned PES membrane by means of mold with neat tiny pattern, the pattern of structure was influenced by casting concentration of PES. The test about water contact angle, porosity and water flux showed that micro-patterned membrane had higher water contact angle, higher porosity and water flux ; Mechanical performance of micro-patterned membrane has a little change.

万伟娜（1986-），女，山东烟台人，硕士生，从事微图案膜方面的制备及应用研究。* 通讯联系人< zhangyz2004cn@163.com>

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