Chemical modification method and chemical modification device for aramid fibers

A technology for chemical modification of aramid fibers, applied in fiber processing, fiber types, textiles and papermaking, etc., can solve the problems of limited modification effect, low production efficiency and difficulty of aramid fibers, and achieve easy control of the reaction process, Improve efficiency and avoid waste
CN104894850AActive Publication Date: 2015-09-09CHINA BLUESTAR CHENGRAND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA BLUESTAR CHENGRAND CO LTD
Publication Date
2015-09-09

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Abstract

The invention relates to a chemical modification method and a chemical modification device for aramid fibers and belongs to the technical field of chemical synthetic fiber modification. The method includes preparation of a surface modification treatment agent, modification treatment and washing drying, a specific acyl chloride active reaction reagent or anhydride active reaction reagent is dissolved in an anhydrous strong-polar organic solvent so as to subject the aramid fibers to chemical modification, surface performance of the modified aramid fibers can be improved remarkably, joint force between the aramid fibers and an epoxy resin matrix is enhanced significantly, and interlaminar shear strength of the modified aramid fibers can reach 50-59MPa. In addition, softness and dispersibility of the fibers are improved while the aramid fibers are subjected to surface modification, and application performance of the fibers is improved.
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Description

technical field

[0001] The invention relates to a modification method and a modification device of an aramid fiber. More specifically, the invention relates to a chemical modification method and a modification device of an aramid fiber, belonging to the technical field of chemical synthesis fiber modification. Background technique

[0002] Para-aramid fibers mainly include aramid II and aramid III fibers. Aramid II is made of poly-p-phenylene terephthalamide polymer by dry jet wet spinning; Aramid III is copolymerized by introducing a third monomer containing a heterocyclic structure into the molecular structure of Aramid II It is produced by wet spinning after reacting to form a polymer. Both fibers can be used to reinforce composites.

[0003] Para-aramid fibers have excellent mechanical properties, especially aramid III fibers are widely used in the field of high-performance composite materials. However, due to the chemical inertness of the surface of aramid fibers, th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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