A kind of aminated glass fiber and its preparation method and application

A glass fiber and amination technology, which is applied in the field of aminated glass fiber and its preparation, can solve the problem of poor copper ion adsorption and regeneration effect, low silicon hydroxyl content on the surface of glass fiber, affecting the stability of the graft layer and Effect and other problems, to achieve the effect of connecting more adsorption sites, short adsorption and elution time, and overcoming poor wear resistance
CN110590186BActive Publication Date: 2021-11-02JINAN UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JINAN UNIVERSITY
Publication Date
2021-11-02

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Abstract

The invention belongs to the technical field of polymer materials, and specifically discloses an aminated glass fiber and a preparation method and application thereof. The specific preparation steps are: (1) after mixing glycidyl ether oxypropyl trimethoxysilane and hydrochloric acid solution, adding alkali-treated glass fiber, then heating reaction under protective atmosphere, and obtaining grafted glycidol after the reaction is completed The glass fiber of etheroxypropyl trimethoxysilane; (2) the cross-linked product of polyethyleneimine or polyethyleneimine and polyvinyl chloride in solvent N,N-dimethylacetamide with step (1) The obtained glass fiber grafted with glycidyl ether oxypropyl trimethoxysilane is mixed and reacted, and after the reaction is completed, it is dried to obtain aminated glass fiber. The grafted polyethyleneimine-modified glass fiber adsorbent obtained by the invention is covalently connected to the graft layer and the glass fiber, and the graft layer is stable. Secondly, because the adsorption sites are all on the surface of the adsorbent, the adsorption and elution time are short, the adsorption capacity is strong, and the efficiency is high.
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Description

technical field

[0001] The invention belongs to the technical field of polymer materials, and in particular relates to an aminated glass fiber and its preparation method and application. Background technique

[0002] Glass fiber is an inorganic non-metallic material with excellent performance. It has good insulation, strong heat resistance, oxidation resistance, high mechanical strength, and good water filtration, but poor wear resistance. The diameter of glass fiber monofilament is several microns to more than 20 microns, equivalent to 1 / 20-1 / 5 of a hair, and has a large specific surface area. The advantage of powder adsorbent is that it has a large specific surface area, but it is difficult to recover and cannot be used in a fixed adsorption bed with convenient operation, while granular adsorbent can be used in a fixed adsorption bed, but it has a large diffusion resistance, low concentration in the inner layer of particles, and small adsorption capacity. Glass fiber is a...

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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