聚丙烯膜的表面涂覆改性及二氧化硫吸收性能  

Properties of Surface Coating Modification and SO2 Absorption of Polypropylene Membranes

作　　者：张东东 冯厚军 关义鹏 谢曼曼 ZHANG Dongdong;FENG Houjun;GUAN Yipeng;XIE Manman(Institute of Seawater Desalination and Multipurpose Utilization,Ministry of Natural Resources(Tianjin),Tianjin 300192,China;Xuzhou Medical University,Xuzhou 221000,China)

机构地区：[1]自然资源部天津海水淡化与综合利用研究所,天津300192 [2]徐州医科大学,江苏徐州221000

出　　处：《塑料工业》2024年第3期89-94,共6页China Plastics Industry

摘　　要：本文以硫化氟硅橡胶(SiF)为疏水改性剂,用表面涂覆法在聚丙烯(PP)中空纤维膜表面及其孔道构建SiF涂层,以提高PP中空纤维膜的疏水性。傅里叶变换红外光谱(FTIR)和X射线光电子能谱(XPS)结果证明SiF成功黏附在PP中空纤维膜表面,形成疏水性PP中空纤维膜(PP-SiF)。SiF的涂覆不影响PP中空纤维膜的结构,并能显著增强PP-SiF中空纤维膜的疏水性。当SiF的质量分数为8%时,PP-SiF-4中空纤维膜的水接触角最大(133.8°),比纯PP中空纤维膜增加了40.07%。而且,由PP-SiF-4中空纤维膜组成的单支组件对二氧化硫(SO2)的去除率为61.55%。由此可知,本研究为PP中空纤维膜在SO2领域的应用提供了新的实验思路和研究基础。Vulcanized fluorosilicone rubber(SiF)was the hydrophobic modifier,and the SiF coating was constructed on the surfaces and pores of polypropylene(PP)hollow fiber membranes via the surface coating method to improve the hydrophobicity of the membranes.The results of Fourier transform infrared spectroscopy(FTIR)and X-ray photoelectron spectroscopy(XPS)confirm that SiF is successfully adhered to the surfaces of PP hollow fiber membranes,forming hydrophobic PP hollow fiber membranes(PP-SiF).The coating of SiF do not affect the structures of PP hollow fiber membranes and can significantly enhance the hydrophobicity of PP-SiF hollow fiber membranes.When the mass fraction of SiF is 8%,the water contact angle of PP-SiF-4 hollow fiber membrane is the highest(133.8°),which is 40.07%higher than that of pure PP hollow fiber membrane.Moreover,the single component composed of PP-SiF4 hollow fiber membrane has a removal rate of 61.55%for sulfur dioxide(SO2).Thus,this study provides a new experimental idea and research basis for the applications of PP hollow fiber membranes in the field of SO2.

关 键 词：聚丙烯 表面涂覆 单组分硫化氟硅橡胶 疏水性 中空纤维膜 

分 类 号：TQ316.6[化学工程—高聚物工业]