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Patent Searching and Data


Title:
PREPARATION METHOD FOR ACTIVATED CARBON FIBER
Document Type and Number:
WIPO Patent Application WO/2019/029101
Kind Code:
A1
Abstract:
Disclosed by the present invention is a preparation method for an activated carbon fiber, which solves the problem wherein the specific surface area of a polyacrylonitrile activated carbon fiber is small, the technical solution thereof comprising the following steps: after mixing china hemp fiber and a polyacrylonitrile stock solution, obtaining a composite fiber by means of dry spinning; placing the obtained composite fiber into a reaction kettle under an air atmosphere and heating for 10-20 minutes to 200-220℃, then maintaining the temperature for 2-3 hours so as to obtain a stabilized composite fiber; heating the obtained stabilized composite fiber in an air atmosphere for 10-20 minutes to 400-450℃ and carbonizing for 1 hour, then filling with an inert gas such that an inert atmosphere forms in the reaction kettle, continuing to raise the temperature to 600-700℃ and maintaining the temperature for 10 minutes to obtain a composite carbonized fiber; adding the obtained composite carbonized fiber into an activator and immersing for 2 hours, removing excess solution by means of extrusion, heating in an inert gas atmosphere to 400-500℃ and activating for 2 hours, after cooling and washing, obtaining an activated carbon fiber such that a polyacrylonitrile activated carbon fiber has a large specific surface area while mechanical strength is ensured.

Inventors:
HUANG ZHANFEI (CN)
Application Number:
PCT/CN2017/118925
Publication Date:
February 14, 2019
Filing Date:
December 27, 2017
Export Citation:
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Assignee:
NANTONG JINKANGHONG TEXTILE CO LTD (CN)
International Classes:
D01F8/08; C08F220/14; C08F220/44; D01F1/10; D01F8/02; D01F9/16; D01F9/22; D01F11/12; D06L4/13; D06M11/07; D06M15/03; D06M16/00
Foreign References:
CN107385559A2017-11-24
CN105506784A2016-04-20
RU2621758C12017-06-07
CN1760414A2006-04-19
JPS5510472A1980-01-24
US20160016345A12016-01-21
CN101230502A2008-07-30
JPS553354A1980-01-11
CN104805535A2015-07-29
CN103748271A2014-04-23
Attorney, Agent or Firm:
SUZHOU GROUNZE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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