Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Concrete laitance reinforcement, preparation method therefor, and application thereof
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.
Concrete laitance reinforcement, preparation method therefor, and application thereof
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.
Concrete laitance reinforcement, preparation method therefor, and application thereof
WUJUN ZHANG (Autor:in) / YANHUA XIE (Autor:in) / ZHIYI CAO (Autor:in) / SHUCHUAN WANG (Autor:in) / JIAQUAN PENG (Autor:in)
02.08.2023
Patent
Elektronische Ressource
Englisch
IPC:
C09D
Überzugsmittel, z.B. Anstrichstoffe, Firnisse oder Lacke
,
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS
/
C04B
Kalk
,
LIME
/
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
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