| 摘要 |
FIELD: composite materials. ^ SUBSTANCE: invention relates to manufacture of composite materials that can be used as fibrous sorbents as well as for fabrication of technical and special-destination articles. Material of invention is composed of nonwoven layer containing ion-exchange fiber and knitted backing made from modified fiber yarn, said ion-exchange fiber being a fiber based on grafted copolymer of polycaproamide with phosphorus-boron-containing methacrylate having general formula: wherein n=1/8 and phosphorus content 1.4-1.8% of the layer weight. Weight ratio knitted backing to nonwoven layer is 1:(1.3-1.6). ^ EFFECT: improved performance characteristics of material due to increased sorption capacity, filtering ability, and fireproofness. ^ 1 tbl, 3 ex |
