木质素/聚氯乙烯膜的制备及其亲水性研究

doi:10.3969/j.issn.0253-2417.2022.01.013

林产化学与工业 ›› 2022, Vol. 42 ›› Issue (1): 95-100.doi: 10.3969/j.issn.0253-2417.2022.01.013

木质素/聚氯乙烯膜的制备及其亲水性研究

叶俊虎, 赵强莉(), 武磊, 付圣熠, 马凯超, 熊振龙

西安工程大学材料工程学院, 陕西西安 710048

收稿日期:2021-12-06 出版日期:2022-02-28 发布日期:2022-03-11
通讯作者: 赵强莉 E-mail:zhql18490@126.com
作者简介:赵强莉, 讲师, 硕士生导师, 主要从事聚合物基复合材料研究; E-mail: zhql18490@126.com
叶俊虎(1999-), 男, 安徽省淮南人, 本科生, 从事聚合物基复合材料研究工作
基金资助:
陕西省大学生创新创业训练计划项目(S201910709057)

Preparation and Hydrophilicity of Lignin/Polyvinyl Chloride(PVC) Membrane

Junhu YE, Qiangli ZHAO(), Lei WU, Shengyi FU, Kaichao MA, Zhenlong XIONG

School of Materials Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, China

Received:2021-12-06 Online:2022-02-28 Published:2022-03-11
Contact: Qiangli ZHAO E-mail:zhql18490@126.com

摘要/Abstract

摘要：

为提高聚氯乙烯(PVC)膜的亲水性，通过聚合物共混法制备了木质素/PVC膜。通过扫描电子显微镜(SEM)表征了膜的断面形貌；通过膜的吸水率、孔隙率、膜通量和膜表面接触角测试探讨了木质素用量、致孔剂种类和用量对膜亲水性能的影响。研究结果表明：木质素/聚氯乙烯膜的内部呈多级孔；加入木质素后，膜的吸水率、孔隙率、亲水性以及膜通量均有明显提高；木质素用量为0.06 g，PVC用量为3.0 g，致孔剂作用时间为10.5 h时木质素/聚氯乙烯膜的综合性能最佳。相比于PEG400，PPG200和PEG200与木质素搭配时膜的亲水性能更优异。当PEG200和PPG200的用量为0.6 g时，膜的表面接触角分别为75.7°和77.9°，孔隙率分别为12.6%和7.1%，吸水率分别为114.7%和94.8%，膜通量分别为135.5和372.6 L/(m²·h)。

关键词: 木质素, 聚氯乙烯膜, 致孔剂, 亲水性

Abstract:

In order to improve the hydrophilicity of PVC membrane, lignin/PVC membrane was prepared by polymer blending method.The cross-sectional morphology of the film was characterized by scanning electron microscope (SEM).The effects of lignin dosage, pore-forming agent type and dosage on the hydrophilicity of the membrane were studied by measuring the water absorption, porosity, membrane flux and membrane surface contact angle.The results showed that the lignin/PVC membrane had multilevel pores.After adding lignin, the water absorption, porosity, hydrophilicity and the membrane flux of the membrane were significantly improved.When the dosage of lignin was 0.06 g, the dosage of PVC was 3.0 g, and the action time of porogen was 10.5 h, the comprehensive performance of lignin/PVC membrane was the best.Compared with PEG400, the PPG200 and PEG200 with lignin had better hydrophilicity.When the dosages of PEG200 and PPG200 were 0.6 g, the surface contact angles of the membranes were 75.7° and 77.9°, the porosities were 12.6% and 7.1%, the water absorption rates were 114.7% and 94.8%, and the membrane fluxes were 135.5 and 372.6 L/(m²·h), respectively.

Key words: lignin, PVC membrane, pore-forming agent, hydrophilicity

中图分类号:

TQ35

叶俊虎, 赵强莉, 武磊, 付圣熠, 马凯超, 熊振龙. 木质素/聚氯乙烯膜的制备及其亲水性研究[J]. 林产化学与工业, 2022, 42(1): 95-100.

Junhu YE, Qiangli ZHAO, Lei WU, Shengyi FU, Kaichao MA, Zhenlong XIONG. Preparation and Hydrophilicity of Lignin/Polyvinyl Chloride(PVC) Membrane[J]. Chemistry and Industry of Forest Products, 2022, 42(1): 95-100.

图/表 4

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木质素/聚氯乙烯膜的制备及其亲水性研究

Preparation and Hydrophilicity of Lignin/Polyvinyl Chloride(PVC) Membrane

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