Structural characteristics of fibres from mixtures of chlorinated polyvinyl chloride and cellulose acetate

Abstract

A promising method of modifying fibrous materials consists of producing them from mixtures of polymers. The mixing of polymers makes it possible not only to combine the properties of the starting components but in certain cases also to produce fibres with improved and unique properties [i]. The practical possibility of producing fibres from mixtures of thermodynamically incompatible polymers in a common solvent by the emulsification of the solution of one polymer in thelsolution of another was first demonstrated by N. V. Mikhailov et al. with Atsetokhlorin fibre* as example [2]. The addition of 15% cellulose acetate (CA) to chlorinated polyvinyl chloride (CPVC) gave a fibre in which the useful properties of the original components (i.e., the incombustibility and resistance to corrosive media of CPVC and the heat resistance and hygroscopic nature of CA) are combined with a new quality, high thermochemical resistance to splitting by HCI [2].