Preparation of functional separation membrane by polymerization using atmospheric pressure glow descharge plasma

常压辉光放电等离子体聚合制备功能分离膜

基本信息

批准号：
08555189
负责人：
TERAMOTO Masaaki
金额：
$ 4.16万
依托单位：
Kyoto Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1997
项目状态：
已结题

项目摘要

The atmospheric pressure glow discharge (APG) plasma process would be advantageous ad regards, the cost of apparatus, treatment of large substrates and the continuous operation. We prepared the APG plasma reactor and demonstrated plasma treatment, plasma polymerization and plasma graft polymerization techniques using APG plasma.The surface of poly (dimethysiloxane) membrane was modified by the APG plasma treatment using He, and the CO_2 permeability and the selsctivity of CO_2 over CH_4 were investigated in detail. Permeance of CO_2 decreased monotomously with the increase of the APG plasma treatment time as in the case of the low pressure plasma treatment. CO_2 selectivity was much improved by the plasma treatment, and went well beyond the value of the untreated poly (dimethylsiloxane) membrane The selectivity could be well correlated with the structure of membrane surface and the affinity between CO_2 and the membrane surface was considered to increase by the existence of the polar groups such as C-OH.Polyethylene film was prepared by the APG plasma method onto the poly (dimethylsiloxane) membrane. Irrespective of the plasma exposing to C_2H_4 monomer, polyethylene film was polymerized. Therefore, polythylene film was considered to be deposited by the plasma-initiated polymerization.The cation-exchange membrane were prepared by grafting acrylic acid coated on the substrates such as microporous polythylene by the use of APG plasma graft polymerization technique. The gtafting method was peculiar to APG plasma. The grafted membrane was applied to the facilitated transport membrane using EDAH^+ as carrier of CO_2. The carrier was immobilized by the electrostatic force in the ion exchange membranes. The high CO_2 permeance and selectivity were obtained.

大气压发光放电（APG）等离子体过程将是有利的广告，设备的成本，大底物的处理和连续运行。我们准备了APG血浆反应器，并使用APG等离子体制备了血浆处理，血浆聚合和血浆移植聚合技术。使用He修改了Poly（Dimethysiloxane）膜的表面，使用APG等离子体处理He，使用CO_2透明度和CO_2超过CO_2的selsctitive of Co_2过于co_2 co_2 co_2 co_2均已研究了细节。与低压等离子体处理一样，CO_2的渗透会随着APG血浆处理时间的增加而单体降低。血浆处理可大大提高CO_2的选择性，并远远超出了未处理的多甲基硅氧烷膜的价值，选择性可能与膜表面的结构良好相关，而Co_2的结构和膜表面之间的亲和力被认为是由C-OH的存在来增加的，例如在c-oh的存在上增加了plasey tomema the eapean the eapean forlox tol of plasey tolox eaperal theyy y rasey y rasem y dimmane y Imnoox eapane y Indos y dim plasey y rasem y dim plasem plasey tolox eakey y rasox y apem。膜。不论暴露于C_2H_4单体的等离子体如何聚合聚合。因此，聚乙烯膜被认为是通过血浆引起的聚合沉积的。通过使用APG血浆种植体聚合技术的使用APG血浆种植体聚合技术，阳离子交换膜是通过将覆盖在底物（例如微孔聚乙烯）上的丙烯酸丙烯酸（例如微孔聚基烯）上制备的。 GTAFTING方法是APG等离子体特有的。使用Edah^+作为CO_2的载体将移植的膜应用于促进的传输膜。载体被静电力固定在离子交换膜中。获得了高CO_2渗透率和选择性。