高難燃性繊維　ＶＩ　　芳香族ポリエステル‐ヒドラジドの繊維およびフィルムの性質

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タイトル別名
  • Properties of Aromatic Polyester-hydrazide Fibers and Films
  • ホウコウゾク ポリエステル -ヒドラジド ノ センイ オヨビ フィルム ノ セ

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抄録

Aromatic polyester-hydrazide, having good light-fastness, flame-resistance and nonmelting, were synthesized from isophthaloyl-dihydrazide, terephthaloyl dichloride and 2, 2-bis (3, 5-dibromo-4-hydroxyphenyl) propane (TBA). Molding properties of these copolymers and the various physical and chemical characteristics of fibers and films were estimated. The results are summarized as follows:<BR>1) Molding properties.<BR>Polyester-hydrazides were easily dissolved in dimethylsulfoxide and could be spun in water (dry tenacity 2.3g/d; dry elongation, 14%; initial strength, 56g/d). On the other hand, colourless and tough films were obtained by dry casting method.<BR>2) Flammability.<BR>The LOI value of this copolymer containing about 9 wt. % bromine was 31.5 and was selfextinguishable.<BR>3) Light-fastness.<BR>After the irradiation with a Fade-O-meter for 40 hours, they did not show any yellowish colour and fiber properties stayed unchanged.<BR>4) Use as thermostable film.<BR>This copolymer exhibited an excellent electric insulation (139kV/mm) and could be used continuously at 155°C.<BR>5) Use for a reverse osmosis membrane.<BR>The salt rejection was about 95% when the flux rate was 700 l/m2/D and polyester-hydrazide exhibited excellent properties as a reverse osmosis membrane.

収録刊行物

  • 高分子論文集

    高分子論文集 37 (2), 125-130, 1980

    公益社団法人 高分子学会

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