有机硅-聚氨酯互穿网络致密膜对氯烃污染物的分离

油墨在材料包装中应用广泛，但溶剂型油墨在使用过程中存在着1,2-二氯乙烷（DCE）等挥发性有机化合物（VOCs）释放污染环境和损害人体健康的问题。在油墨生产过程中，使用分离膜可有效除去VOCs，以实现材料的绿色环保。以六甲基二硅氧烷（MM）作为封端剂，γ-甲基丙烯酰氧丙基三甲氧基硅氧烷（KH570）和正硅酸乙酯（TEOS）通过水解缩合得到有机硅树脂（MTQ）；利用异佛尔酮二异氰酸酯（IPDI）、羟丙基聚二甲基硅氧烷和丙烯酸羟乙酯（HEA）制备有机硅改性聚氨酯丙烯酸酯（SiPUA）；再通过紫外光固化合成了MTQ-SiPUA复合物，利用该复合物制备了新型互穿网络致密膜，并通过红外光谱、X射线衍射和热重分析对互穿网络致密膜的结构和性能进行了表征。结果发现，MTQ-SiPUA-32.5%互穿网络致密膜具有优异的热稳定性和力学性能，对1.33% 二氯甲烷（DCM）、0.84% DCE和0.44% 1,1,2-三氯乙烷（TCE）具有稳定的渗透通量，分别为0.161, 0.140, 0.0715 kg/(m2·h)，对应的选择性分别为952.5、2012.9和13 255.8。

Separation of Chlorine-Containing Organic Pollutants by Silicone-Polyurethane Interpenetrating Network Dense Membranes

Inks are widely used in material packaging, but solvent-based inks have the problem of polluting the environment and damaging human health with the release of volatile organic compounds (VOCs), such as 1,2-dichloroethane (DCE) in the process of usage. The use of separation membranes in the ink production process could effectively remove VOCs to generate green materials. Hexamethyldisiloxane (MM) was used as a capping agent, with γ-methacryloxypropyltrimethoxysiloxane (KH570) and ethyl orthosilicate (TEOS) by hydrolytic condensation to obtain organosilicone resin (MTQ). Silicone modified polyurethane resin (SiPUA) was prepared by isophorone diisocyanate (IPDI), hydroxypropyl polydimethylsiloxane and 2-hydroxyethyl acrylate (HEA), and then MTQ- SiPUA complex was synthesized by UV curing, and a novel interpenetrating network dense membranes was prepared using this complex. The structure and property of interpenetrating network dense membranes were characterized by infrared spectroscopy, X-ray diffraction and thermogravimetry. The MTQ-SiPUA-32.5% interpenetrating network dense membranes has excellent thermal stability and mechanical properties, with stable permeate fluxes to 1.33% dichloromethane (DCM), 0.84% DCE, and 0.44% 1,1,2-trichloroethane (TCE), with 0.161, 0.140, and 0.0715 kg/(m2·h) respectively, corresponding to selectivity of 952.5, 2012.9 and 13 255.8 respectively.