Title:
CONCRETE LAITANCE REINFORCEMENT, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/061056
Kind Code:
A1
Abstract:
The present application relates to the technical field of functional polymer materials, and in particular, to a concrete laitance reinforcement, a preparation method therefor, and an application thereof. The concrete laitance reinforcement provided by the present application is a graft-copolymerized epoxy concrete laitance reinforcement containing a multifunctional group; a main agent is a submicron grafted multifunctional resin having a particle size of 0.05-0.25 μm; a silanol structural unit thereof has excellent permeability to laitance and the inside, and is coupled to surface OH to enhance the strength of a laitance substrate and improve the tensile cohesion strength of the laitance on the surface of concrete; a construction paint also has good strength when the laitance does not need to be polished completely in engineering application; the reinforcement has good wetting adhesion to a concrete substrate and a subsequent coating; and the adhesive force of a matched protective coating is greater than or equal to 1.5 MPa. Moreover, the reinforcement is cross-linked to obtain a thermosetting coating film, such that the heat resistance and temperature creep resistance of the reinforcement are improved, the heat resistance of the reinforcement is improved, and the temperature resistance requirement of the coating at 120°C for 200 h can be met.
Inventors:
ZHANG WUJUN (CN)
XIE YANHUA (CN)
CAO ZHIYI (CN)
PENG JIAQUAN (CN)
WANG SHUCHUAN (CN)
XIE YANHUA (CN)
CAO ZHIYI (CN)
PENG JIAQUAN (CN)
WANG SHUCHUAN (CN)
Application Number:
PCT/CN2022/114462
Publication Date:
April 20, 2023
Filing Date:
August 24, 2022
Export Citation:
Assignee:
T&H NOVEL MAT SUZHOU CO LTD (CN)
T&H NOVEL MAT CO LTD (CN)
CHINA NUCLEAR POWER ENG CO LTD (CN)
T&H NOVEL MAT CO LTD (CN)
CHINA NUCLEAR POWER ENG CO LTD (CN)
International Classes:
C04B41/64; C09D183/10; C08G77/442
Foreign References:
| CN113831839A | 2021-12-24 | |||
| CN108276936A | 2018-07-13 | |||
| CN101982512A | 2011-03-02 | |||
| CN105712657A | 2016-06-29 | |||
| US20190002349A1 | 2019-01-03 | |||
| US20170327422A1 | 2017-11-16 |
Attorney, Agent or Firm:
SUNSHINE INTELLECTUAL PROPERTY INTERNATIONAL CO., LTD. (CN)
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