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Activated carbon-loaded polyphenylene sulfide porous fiber and its preparation method and application

A technology of polyphenylene sulfide and porous fibers, applied in the field of activated carbon-loaded polyphenylene sulfide porous fibers and their preparation, can solve the problems of poor acid and alkali corrosion resistance, poor organic solvent resistance, poor adsorption effect, etc., and achieve excellent flame retardant performance, the effect of excellent adsorption performance

Active Publication Date: 2021-12-17
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a kind of activated carbon-loaded polyphenylene sulfide porous fiber and its preparation method and application, to improve the problem that most of the activated carbon in the existing activated carbon fiber is embedded by the matrix, and the adsorption effect is poor; Activated carbon-loaded fibers have poor mechanical properties, poor resistance to organic solvents, and poor acid and alkali corrosion resistance.

Method used

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  • Activated carbon-loaded polyphenylene sulfide porous fiber and its preparation method and application
  • Activated carbon-loaded polyphenylene sulfide porous fiber and its preparation method and application
  • Activated carbon-loaded polyphenylene sulfide porous fiber and its preparation method and application

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preparation example Construction

[0027] Some embodiments of the present invention also provide a kind of preparation method of activated carbon-loaded polyphenylene sulfide porous fiber, it comprises:

[0028] The ternary blending resin extruded by melt blending is spun through a melt spinning machine to obtain ternary blending primary fibers, wherein the ternary blending resin is composed of polyphenylene sulfide resin, porogen Melt blending and extruding with nano-activated carbon; heat-stretching and heat-setting the ternary blending as-spun fibers in sequence to obtain a ternary blending fiber; after dissolving and removing the porogen in the ternary blending fiber, The activated carbon-loaded polyphenylene sulfide porous fiber is obtained.

[0029] In order to solve the problem that activated carbon is loaded and embedded in the matrix structure, resulting in poor adsorption performance and its own material performance, after a lot of practice and research, the inventor creatively proposed the combinatio...

Embodiment 1

[0053] The preparation method of the polyphenylene sulfide porous fiber loaded with 5wt% activated carbon provided by the present embodiment is:

[0054] Mix polyphenylene sulfide resin and nano-activated carbon at a mass ratio of 95:5, and then uniformly mix it with polyethersulfone at a mass ratio of 60:40, and then dry it in a vacuum oven at 140°C for 5 hours . After the drying is completed, it is sent to a twin-screw extruder with a die head temperature of 300° C. for melt blending, and the extruded filaments are pelletized to obtain spinning raw materials.

[0055] Send the obtained spinning raw material into a single-screw melt spinning machine for spinning, the spinning temperature is 320°C, the number of spinneret holes used is 18 holes, and the diameter of the spinneret holes is 0.4mm; a thin stream of melt is sprayed out After being cooled and solidified by side air blowing, the polyphenylene sulfide / polyethersulfone / activated carbon ternary blend primary fiber was ...

Embodiment 2

[0060] The preparation method of the polyphenylene sulfide porous fiber loaded with 10wt% activated carbon provided by the present embodiment is:

[0061] Mix polyphenylene sulfide resin and nano-activated carbon at a mass ratio of 90:10, and then uniformly mix it with polyethersulfone at a mass ratio of 60:40, and then dry it in a vacuum oven at 140°C for 5 hours . After the drying is completed, it is sent to a twin-screw extruder with a die head temperature of 300° C. for melt blending, and the extruded filaments are pelletized to obtain spinning raw materials.

[0062] Send the obtained spinning raw material into a single-screw melt spinning machine for spinning, the spinning temperature is 320°C, the number of spinneret holes used is 18 holes, and the diameter of the spinneret holes is 0.4mm; a thin stream of melt is sprayed out After being cooled and solidified by side air blowing, the polyphenylene sulfide / polyethersulfone / activated carbon ternary blend primary fiber wa...

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Abstract

The invention discloses a polyphenylene sulfide porous fiber loaded with activated carbon and its preparation method and application. The mixed resin is spun by a melt spinning machine, followed by heat stretching and heat setting; then the porogen in the fiber is dissolved and removed to obtain a porous fiber with a continuous hole structure inside, and the load in the hole and around it There is nano activated carbon. By using polyphenylene sulfide porous fibers with a continuous through-pore structure as a carrier, the nano-activated carbon is selectively distributed inside the macropores of the fibers, so that the activated carbon is effectively fixed, and at the same time, the problem of activated carbon being embedded by the matrix resin is solved. Moreover, the porous fiber has excellent adsorption performance, acid resistance, alkali resistance, organic solvent resistance, and excellent flame retardancy, and can be widely used in biochemical protective clothing, fire protection clothing, wastewater treatment, toxic gas adsorption and other fields.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an activated carbon-loaded polyphenylene sulfide porous fiber and a preparation method and application thereof. Background technique [0002] Activated carbon is a porous carbon adsorbent containing a large number of micropores (pore size < 2nm), composed of amorphous carbon based on graphite crystallites and a small amount of ash. The specific surface area of ​​activated carbon can reach 500~3000m 2 / g, has a highly developed pore structure, has strong adsorption properties, can effectively adsorb heavy metal components, various minerals and salts, organic matter, chlorides, etc. in liquids, and can adsorb aldehydes and carbon monoxide in gases Na, hydrogen sulfide, ammonia, benzene and other toxic components. Activated carbon also has good physical properties and chemical stability, acid and alkali corrosion resistance, heat resistance, insoluble in water and org...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/16D01F1/10D01F11/08B01D53/02B01J20/30B01J20/26C02F1/28A41D13/00A41D31/04A41D31/08A62B17/00
CPCD01F8/16D01F1/10D01F11/08B01J20/20B01J20/262B01D53/02C02F1/28A41D13/0002A41D31/04A41D31/08A62B17/003
Inventor 刘鹏清李俊峰许启彬李博宿泽熙陈原江春慧姜猛进
Owner SICHUAN UNIV
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