Preparation and Characterization of Polyurethane (PU)/ Polyvinylidene Fluoride (PVDF) Blending Membrane

摘要：

　　In this paper,we presented a new method to prepare PU/PVDF blending membranes via the method of thermally induced phase separation (TIPS).The structures and properties of the blending membranes were characterized by contact angle tests,FT-IR,atomic force microscope (AFM) and differential scanning calorimetry (DSC).Comparing with the direct addition of PU polymer or semi-finished PU product,the introduction of PU by individually adding A and B monomers could achieve better permeation results.The PU/PVDF blending membrane obtained with 16-18% of PVDF.50% of DMP and 2% of PU showed better hydrophilicity.FT-IR results indicated that new chemical bonds were observed on the surface of the blending membranes.Comparing with the pure PVDF membrane,the PU/PVDF blending membrane exhibited slightly higher mechanical strength.AFM tests indicated that the surface roughness of the PU/PVDF blending membrane was lower than that of the pure PVDF membrane.DSC tests showed that the crystallinity of PU/PVDF blending membrane membrane decreased with the introduction of PU polymer.

关键词： Polyvinylidene fluoride (PVDF) Polyurethane (PU) Thermally induced phase separation (TIPS) Hydrophilicity Surface roughness

作者: Dong Hao Tang Xu Xiao Kaijun

作者单位: Research Institute of Light Industry and Chemical Engineering, South China University of Technology, Guangzhou 510640, Peoples Republic of China

会议类型: 国际会议

会议名称: 2013青岛国际脱盐大会(Qingdao International Conference 2013 on Desalination and Water Reuse)

会议地点: 青岛

会议语种:英文

页码: 67-74

在线出版日期: 2013-06-25（万方平台首次上网日期，不代表论文的发表时间）