CERN Accelerating science

Preprint
Report number	JINR-P18-2000-114 ; P18-2000-114
Title	Polypropylene Track Membranes for Mikro and Ultrafiltration of Chemically Aggressive Agents
Author(s)	Kravets, L I ; Dmitriev, S N ; Apel, P Yu
Affiliation	(Flerov Laboratory of Nuclear Reactions, JINR, Dubna)
Publication	2000
Imprint	24 May 2000
Number of pages	32
Published in:	Vysokomolek. Soedinen.
Subject category	Other Fields of Physics
Abstract	A production process for track membranes on the basis of chemically resistant polymer polypropylene has been developed. Research in all stages of the formation of the polypropylene track membranes has been conducted: the main principles of the process of chemical etching of polypropylene irradiated with accelerated ions have been investigated, the most effective structure of the etchant for a selective etching of the heavy ion tracks has been selected, the parameters of etching have been optimized. A method for sensibilization of latent tracks in polypropylene by effect of solvents has been developed. It helps to reach a significant increase in etching selectivity. A method for destruction of an absorbed chromocontaining layer on the surface of polypropylene track membranes formed during etching has been elaborated. Experimental samples of the membranes for micro and ultrafiltration have been obtained and their properties have been studied in course of their exploitation in chemically aggressive agents. For the purpose of updating the properties of the membranes, a plasma-chemical method was applied.
Submitted by	[email protected]