天津工业大学学报2011，Vol.30Issue(2)：23-26,4.
紫外辐射改性聚乙烯膜的亲水性研究
Investigation of hydrophilic modified polyethylene membrane induced by UV-irradiation grafting
王磊 1魏俊富 2赵孔银 1张环 3王晓磊1
作者信息
- 1. 天津工业大学中空纤维膜材料与膜过程省部共建国家重点实验室培育基地,天津300160
- 2. 天津工业大学材料科学与工程学院,天津300160
- 3. 天津工业大学环境与化学工程学院,天津300160
- 折叠
摘要
Abstract
A LDPE-g-AA hydrophilic membrane with different grafting degree is prepared by UV-irradiation grafting of acrylic acid (AA) on the low-density polyethylene (LDPE) membrane. The hydrophilic membrane is characterized by attenuated total reflectance Fourier transform infrared spectroscopy (FT IR-ATR) and scanning electronic microscope (SEM). The hydrophilicity is determined by contact angle of water, settling time and water absorption. The infrared spectrum shows that the carboxylic groups are introduced into the membrane and increase with grafting degrec. SEM images reveal that the graft polymer chains grow into regular spheroidal particles on the LDPE surface. When the grafting degree of LDPE-g-AA is above of 22％,the contact angle of water on LDPE-g-AA membrane decreases from 89° to 30°, settling time decreases from infinite to 11 s. And the contact angle of water and settling time are tended to be stable. Finally, the result of water absorption shows that water absorption increases with grafting degree of LDPE-g-AA.关键词
低密度聚乙烯膜/亲水性/紫外辐射/接枝Key words
low-density polyethylene membrane/ hydrophilicity/ UV-irradiation/ graft分类
轻工纺织引用本文复制引用
王磊,魏俊富,赵孔银,张环,王晓磊..紫外辐射改性聚乙烯膜的亲水性研究[J].天津工业大学学报,2011,30(2):23-26,4.
