Micro-pore silicon carbide fiber and preparing method thereof

A technology of microporous silicon carbide and fiber, which is applied in the direction of spinning solution preparation, fiber chemical characteristics, melt spinning method, etc., can solve the problems of difficult to obtain practical application value, low specific surface area, low specific surface area of ​​fiber, etc., and achieve a wide range of practical applications. Application value, effect of high specific surface area
CN101215735AInactive Publication Date: 2008-07-09NAT UNIV OF DEFENSE TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NAT UNIV OF DEFENSE TECH
Publication Date
2008-07-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to micropore carbofrax fiber and a process for preparation. Micropore carbofrax fiber is characterized in that the content of Si is 40-65 wt%, the content of C is 25-45 wt%, residual material is O, micropore carbofrax fiber takes continuous fibrous shape, the volume of micropore (pore diameter <= 2nm) accounts for more than 85 vol% of total pore volume, average pore size is 1.30-2.00nm, and specific surface area is 1100-2100m 2 / g. The process for preparation is characterized in that carbofrax fiber which is rich with C is firstly prepared by blending mixing, non-melting and cracking through poly carbon silicon alky and carbonaceous high polymer, then micropore carbofrax fiber is obtained through activating carbon removing technology. The volume of micropore of micropore carbofrax fiber of the invention has high content, and pore diameter is stable and hard to collapse, and has high specific surface area, high thermally insulating property and good oxidation resistance property, and the invention has good application prospect in the field of environmental control, energy storage, medical health and the like.
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Description

Technical field

[0001] The invention relates to a microporous material and a preparation method thereof, in particular to a microporous silicon carbide fiber and a preparation method thereof. Background technique

[0002] Macroporous and mesoporous materials are mainly used as catalyst carriers, filtering macromolecular substances, and heat insulation, heat preservation, sound insulation materials, etc., while microporous materials are mostly used in the fields of adsorption and separation of small molecular substances and energy storage. Microporous materials are The research hotspots in recent years have been placed high hopes in the fields of environmental governance, medicine and health, and energy storage.

[0003] Inorganic non-metallic microporous materials have become the focus of research due to their good stability, temperature resistance and corrosion resistance. Among them, the most researched microporous materials are mainly carbon materials, such as super activated ...

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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