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Ultraviolet-resistant zinc-modified composite para-aramid fiber as well as preparation method and application thereof

A technology of para-aramid fiber and UV zinc, which is applied in the direction of light-resistant fiber, fiber type, fiber treatment, etc., can solve the problems of poor radiation resistance and achieve the goals of reducing comprehensive performance, improving surface activity, and improving UV resistance Effect

Active Publication Date: 2021-09-07
宁夏泰和芳纶纤维有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a kind of anti-ultraviolet zinc modified composite para-aramid fiber and its preparation method and application, focusing on solving the poor radiation resistance of para-aramid fiber (Tayho) Problem, the present invention mainly increases the UV resistance of para-aramid by Zn modification

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  • Ultraviolet-resistant zinc-modified composite para-aramid fiber as well as preparation method and application thereof
  • Ultraviolet-resistant zinc-modified composite para-aramid fiber as well as preparation method and application thereof
  • Ultraviolet-resistant zinc-modified composite para-aramid fiber as well as preparation method and application thereof

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Embodiment 1

[0025] Embodiment 1, a method for preparing a UV-resistant zinc modified composite para-aramid fiber of the present invention, comprising the following steps:

[0026] (1) Dissolve the zinc salt in ethanol at 60-80°C to obtain solution A with a solution concentration of 0.1mol / L, then add 32mg of alkali solution to 140mL of ethanol, and then add 1g of polyethylene glycol to obtain solution B, Then A and B solutions were mixed under vigorous stirring, and after 30 minutes, the mixed solution was cooled in ice water to obtain a clear and transparent ZnO seed solution with a concentration of 0.1mol / L;

[0027] (2) The exposed Tayho was washed sequentially in acetone, petroleum ether and deionized water, Soxhlet extraction was performed at 50°C for 24 hours, and then dried in a vacuum oven at 80°C for 6 hours; another 1mL tris solution (1M ) in a 100mL volumetric flask, set to volume, prepare 10mM Tris solution, then prepare 2g / L DA solution, adjust the pH of DA solution to 8.5 wi...

Embodiment 2

[0029] Embodiment 2, a method for preparing a UV-resistant zinc modified composite para-aramid fiber of the present invention, comprising the following steps:

[0030] (1) Dissolve the zinc salt in ethanol at 60-80°C to obtain solution A with a solution concentration of 0.2mol / L, then add 32mg of alkali solution to 140mL of ethanol, and then add 1g of polyethylene glycol to obtain solution B, Then A and B solutions were mixed under vigorous stirring, and after 30 minutes, the mixed solution was cooled in ice water to obtain a clear and transparent ZnO seed solution with a concentration of 0.2 mol / L;

[0031] (2) The exposed Tayho was washed sequentially in acetone, petroleum ether and deionized water, Soxhlet extraction was performed at 50°C for 24 hours, and then dried in a vacuum oven at 80°C for 6 hours; another 1mL tris solution (1M ) in a 100mL volumetric flask, set to volume, prepare 10mM Tris solution, then prepare 2g / L DA solution, adjust the pH of the solution to 8.5 ...

Embodiment 3

[0033] Embodiment 3, a method for preparing a UV-resistant zinc modified composite para-aramid fiber of the present invention, comprising the following steps:

[0034] (1) Dissolve zinc salt in ethanol at 60-80°C to obtain solution A with a solution concentration of 0.3mol / L, then add 32mg of alkali solution to 140mL of ethanol, and then add 1g of polyethylene glycol to obtain solution B, Then A and B solutions were mixed under vigorous stirring, and after 30 minutes, the mixed solution was cooled in ice water to obtain a clear and transparent ZnO seed solution with a concentration of 0.3mol / L;

[0035] (2) The exposed Tayho was washed sequentially in acetone, petroleum ether and deionized water, Soxhlet extraction was performed at 50°C for 24 hours, and then dried in a vacuum oven at 80°C for 6 hours; another 1mL tris solution (1M ) in a 100mL volumetric flask, constant volume, prepare 10mM polytrishydroxymethylaminomethane solution, then prepare 2g / L DA solution respectively...

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Abstract

The invention discloses an ultraviolet-resistant zinc modified composite para-aramid fiber as well as a preparation method and application thereof. The preparation method comprises the following steps of 1, preparing ZnO seed crystal solutions with different concentrations; 2, preparing Tayho-PDAx, wherein x is equal to 1.2.3; and 3, preparing ZnO-Tayho-PDAx fiber. The invention relates to the technical field of para-aramid fibers, in particular to the ultraviolet-resistant zinc-modified composite para-aramid fiber as well as the preparation method and application thereof. The problem of relatively poor radiation resistance of para-aramid fiber (Tayho) is emphatically solved, and the ultraviolet resistance of the para-aramid fiber is improved mainly through Zn modification.

Description

technical field [0001] The invention relates to the technical field of para-aramid fibers, in particular to an ultraviolet-resistant zinc-modified composite para-aramid fiber, a preparation method and an application thereof. Background technique [0002] The full name of aramid fiber is "polyphenylene phthalamide". The amide chain (-CONH-) on the macromolecular chain is directly connected to two benzene rings, and the carbonyl and imine hydrogen in the amide bond can form a molecule The existence of hydrogen bonds is conducive to the formation of high crystallization and high orientation molecular structure of aramid fiber. According to the molecular structure of the amide bond directly bridged by the aromatic group, it can be divided into meta-aramid fiber (aramid fiber 1313) and para-aramid fiber (aramid fiber 1414). [0003] Para-aramid fiber is a modern organic high-performance fiber with light weight, ultra-high strength, high modulus, high heat resistance and excellen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/44D06M15/53D06M15/37D06M101/36
CPCD06M11/44D06M15/53D06M15/37D06M2101/36D06M2200/25
Inventor 张建红宋西全姜茂忠唐凯侯春蕾刘书杰雒瑞银王忠伟
Owner 宁夏泰和芳纶纤维有限责任公司
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