Title:
REAMING METHOD FOR ACTIVATED CARBON FIBER
Document Type and Number:
WIPO Patent Application WO/2022/016663
Kind Code:
A1
Abstract:
Provided is a reaming method for an activated carbon fiber, comprising: A, impurity removal; B, primary cleaning; C, primary drying; D, primary modification: putting dried activated carbon fibers into magnesium powder to react for 30-70 min, the reaction temperature being 900-1300ºC; E, secondary cleaning; F, secondary drying; G, secondary modification: performing high-temperature ammonia modification, first heating up to 300ºC in a nitrogen atmosphere, switching to an ammonia atmosphere, continuing heating up to 900-1100ºC, and modifying for 2-3 h; H, third cleaning; I, third drying; J, soaking: soaking the dried activated carbon fibers in an ethanol solution, and adding hydroxide in the ethanol solution as a pore-enlarging agent; K, third modification: continuing soaking the activated carbon fibers in a surfactant, heating under nitrogen protection for 2-4 h with the heating temperature of 300-500ºC, then switching nitrogen to a mixed gas of water vapor and carbon dioxide, and heating at 700-800ºC for 1-3 h; L, fourth cleaning; and M, fourth drying, to obtain a reamed activated carbon fiber. The method can effectively improve the reaming effect of the activated carbon fiber, and does not affect the overall strength of activated carbon fiber.
Inventors:
JIN SHANSHAN (CN)
Application Number:
PCT/CN2020/112095
Publication Date:
January 27, 2022
Filing Date:
August 28, 2020
Export Citation:
Assignee:
SUZHOU YUANHAO NEW TEXTILE TECH CO LTD (CN)
International Classes:
D06M11/83; D02J13/00; D06M11/38; D06M11/44; D06M11/49; D06M11/60; D06M13/144; D06M13/224; D06M13/256; D06M13/262; D06M13/355; D06M15/53; D06M101/40
Foreign References:
| CN110983495A | 2020-04-10 | |||
| CN110407210A | 2019-11-05 | |||
| CN107973296A | 2018-05-01 | |||
| CN108722357A | 2018-11-02 | |||
| CN103623778A | 2014-03-12 | |||
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| CN102120179A | 2011-07-13 | |||
| US6030698A | 2000-02-29 | |||
| KR20010002268A | 2001-01-15 | |||
| JP2017164741A | 2017-09-21 |
Attorney, Agent or Firm:
BEIJING IP PATENT AGENCY CO., LTD. (CN)
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