METHOD OF PRODUCING ASYMMETRIC POROUS HOLLOW FIBRE MEMBRANE
	MATVEEV D N; BORISOV I L; VOLKOV V V; VASILEVSKY V P; ANOKHINA T S
	2024-05-24
专利权人	AS RUSSIA PETROCHEM SYNTHESIS INST (ASPE-Non-standard)
申请日期	2024-05-24
专利号	RU2836431-C1
成果简介	NOVELTY - Invention relates to membrane separation and more specifically to a method of producing an asymmetric porous hollow fibre membrane which can be used in liquid filtration and/or gas separation processes used in domestic industry. Disclosed is a method of producing a porous asymmetric hollow fibre membrane with an outer skin layer and a coarse structure on the inner surface of the hollow fibre, in which for formation of internal channel liquid is used, which is immiscible with solvent and is not a precipitant for polymer or mixture of polymers that make up moulding solution. Polymer moulding solution composition is prepared from a polymer or a mixture of polymers and a solvent, taken in amounts which provide an average dynamic viscosity of the polymer moulding solution at temperature of 20 °C equal to 5,000-70,000 cP. Moulding solution can additionally contain a pore-forming additive: polyethylene glycol (PEG) or polyvinylpyrrolidone (PVP). USE - Performing operations. ADVANTAGE - Obtaining porous asymmetric hollow fibre membranes with controlled geometry, suitable for use in liquid filtration and/or gas separation processes; absence of a skin layer on the inner surface of the hollow fibre membranes, which leads to a decrease in resistance to mass transfer through the membrane; obtained membranes are characterized by retention coefficient of 99.9% of Blue Dextran calibrant having molecular weight of 70,000 g/mol. 6 cl, 5 dwg, 1 tbl, 14 ex
IPC 分类号	B01D-069/08 ; D01D-005/247
国家	俄罗斯
专业领域	材料科学
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/16609
专题	中国科学院新疆生态与地理研究所
作者单位	AS RUSSIA PETROCHEM SYNTHESIS INST (ASPE-Non-standard)
推荐引用方式 GB/T 7714	MATVEEV D N,BORISOV I L,VOLKOV V V,et al. METHOD OF PRODUCING ASYMMETRIC POROUS HOLLOW FIBRE MEMBRANE. RU2836431-C1[P]. 2024.

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