关键词： 聚氨酯   铺面材料   纳米SiO2   抗污染性能  

摘要： 介绍新型抗污染聚氨酯铺面材料的制备方法、主要原材料的选择及其影响因素。该铺面材料通过引进复合阻燃剂,使得制品的阻燃等级达到了1级;通过引入纳米SiO2,使制品的抗污性能大大提高。

关键词： 复合膜   抗污染   油水分离   微乳液   界面聚合  

摘要： A fouling-resistant ceramic-supported polymer composite membrane was developed for removal of oil-in-water (O/W) microemulsions. The composite membrane was featured with an asymmetric three-layer structure,i.e. ,a porous ceramic membrane substrate,a polyethersulfone (PES) ultrafiltration sub-layer,and a polyamide/polyvinyl alcohol (PVA) composite thin *** PES polymer was cast onto the tubular porous ceramic membrane with the sol-gel method,and the polyamide/PVA composite thin top-layer was fabricated with the interfacial polymerization method. The prepared composite membrane showed good performance for treating the O/W microemulsions with a mean diameter of 2.4 μm. At the operating pressure of 0.4 MPa,the hydraulic permeability remained steady at about 280 L·m -2 ·h -1 after a period of operation,the oil concentration in the filtrate was always less than 1.15 mg·L -1 ,and the oil rejection coefficient was higher than 99.1% from the beginning of the operation.

关键词： 聚砜膜   聚丙烯腈膜   表面改性   接技   膜污染   高分子多孔膜  

摘要： 采用羟基化预处理、铈盐引发和碱化预处理、Fe2+/H2O2引发两种引发体系,对聚砜(PS)膜和聚丙烯腈(PAN)膜进行表面接枝丙烯酰胺的改性,研究预处理和表面接枝改性对膜污染的影响。采用红外光谱和X光电子能谱对羟基化和接枝改性的膜表面进行表征。研究表明,表面预处理和接枝后,PS膜和PAN膜的水通量均有所下降,但提高了抗牛血清蛋白膜污染能力。

关键词： 车辆   水基   抗污涂层材料   汽车   涂料   Daikin公司