| 摘要 |
FIELD: polymer materials. SUBSTANCE: composition containing fully aromatic polyamide with homopolymer units of formula: [-(NH-C6H4-NHCO-C6H4-CO-)]; aliphatic polyamide consisting of polycaproamide or polyhexamethylenedipamide homopolymer units; and concentrated sulfuric acid is distinguished by that at least one of the above-mentioned polyamides is copolymer consisting of two aromatic or two aliphatic honopolymer units, said aromatic copolymer having general formula: <EMI ID=0.1 HE=14 WI=73 TI=CHI>, wherein u = 75-90 wt.% and w = 10-25 wt.%, and said aliphatic copolymer having general formula: [-(NH-(CH2)6-NHCO-(CH2)4-CO-)n(-HN-(CH2)5-CO-)m], wherein n = 50-95 wt.% and m = 5-50 wt. %, whereas spinning composition contains 16-19 wt.% of fully aromatic polyamide, 0.6-4.0 wt.% of aliphatic polyamide, and concentrated sulfuric acid forms the rest of composition. EFFECT: considerably strengthened threads and increased wear resistance. 7 cl, 1 tbl, 15 ex
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