Method of getting the composite fiber material with functional heat-resistant, heat-accumulating components

Abstract

Abstract In the article research results are presented, which aim to development of an method of getting the composite fiber material with functional heat-resistant and/or heat-accumulating components. Their resources and prospects for their use are of interest for improving the clothing heat resistance by modifying the materials. A similar approach is relevant for technologies of protective clothing from the cold (modification of fibrous materials using heat-accumulating components). As a heat-resistant synthetic fiber, we considered the Kevlar fiber. For research and development, we selected a special fine fraction: pulp or PCM-capsules. As a fibrous basis for designing the new material, we considered a widely used fiber insulating material – Hollofiber. The method and scheme of the general layout of the method for modifying nonwoven fabric with fine aramid fiber - pulp or PCM are developed. The research results allowed us to find that the proportion of Kevlar in the insulating material equal to 30 ±3 g/cu.m virtually did not change the thickness, porosity, and density of the material pack (less than 1%), which indicates the constancy of the air volume, the presence of which determines the thermal resistance of the insulating material. The presented method has a similar application technology for PCM capsules, which are converted by standard fiber materials.