Title:
MUSSEL BIONIC PRINCIPLE-BASED COAL SEAM MOISTENING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/082949
Kind Code:
A1
Abstract:
A mussel bionic principle-based coal seam moistening method, which relates to the technical field of coal mine dust prevention. The raw material composition of a coal seam water injection wetting agent used in the method is as follows: dopamine, which is used for producing polydopamine by oxidative self-polymerization under a weak alkaline condition; polyacrylamide, which is used for carrying out hydrophilic secondary modification on the formed polydopamine; copper sulfate, which is used for increasing the speed at which polydopamine is produced by the oxidative self-polymerization of dopamine; hydrogen peroxide, which cooperates with the copper sulfate and is used for increasing the speed at which polydopamine is produced by the oxidative self-polymerization of dopamine; sodium hydroxide, which provides an alkaline environment for the solution, so that the pH value of the solution is 8.5-11; and water, water being used as a solvent. Dopamine passes through oxidative self-polymerization to become polydopamine, and the polydopamine and polyacrylamide are subjected to Michael addition and are cross-linked with one another. After the water injection wetting agent is injected into a coal seam, the hydrophilicity of the coal surface may be significantly improved.
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Inventors:
ZHAO YANYUN (CN)
HOU JIAOYUN (CN)
HU XIANGMING (CN)
SHAO ZHIANG (CN)
CHENG WEIMIN (CN)
HOU JIAOYUN (CN)
HU XIANGMING (CN)
SHAO ZHIANG (CN)
CHENG WEIMIN (CN)
Application Number:
PCT/CN2020/134388
Publication Date:
April 28, 2022
Filing Date:
December 08, 2020
Export Citation:
Assignee:
UNIV SHANDONG SCIENCE & TECH (CN)
International Classes:
C09K8/60; E21F5/02; E21F5/16
Foreign References:
| CN102337103A | 2012-02-01 | |||
| CN110433530A | 2019-11-12 | |||
| CN103498650A | 2014-01-08 | |||
| CN108641679A | 2018-10-12 | |||
| CN110880359A | 2020-03-13 | |||
| CN108084967A | 2018-05-29 | |||
| CN106317442A | 2017-01-11 | |||
| US4995463A | 1991-02-26 |
Attorney, Agent or Firm:
QINGDAO ZHIDILINGCHUANG PATENT AGENCY CO., LTD (CN)
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