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Embedded channel sealing coating as well as preparation method and application thereof

A technology for sealing coatings and pre-embedded channels, applied in coatings, epoxy resin coatings, etc., can solve problems affecting the service life of pre-embedded channels, difficulties in subway operation and maintenance, poor aging resistance of coatings, etc., to achieve Reduce post-maintenance work, avoid electrochemical corrosion, and improve quality

Pending Publication Date: 2022-07-15
SHANDONG TIANDUN MINING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The pre-buried channel has been used in the dark and humid subway environment for a long time. If the coating has poor aging resistance, it will seriously affect the service life of the pre-buried channel, which will cause great difficulties for the later operation and maintenance of the subway and increase maintenance costs.

Method used

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  • Embedded channel sealing coating as well as preparation method and application thereof
  • Embedded channel sealing coating as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A pre-embedded channel sealing coating mainly consists of the following materials in parts by weight:

[0046] The film-forming substance includes 40 parts by weight of silicone synthetic resin, 13 parts by weight of double A-type modified epoxy resin, and 6 parts by weight of bisglycidyl ether epoxy resin. The fillers include 9 parts by weight of titanium dioxide, 8 parts by weight of zinc phosphate, 7 parts by weight of aluminum phosphate, 2 parts by weight of mica powder, 2 parts by weight of iron oxide, 2 parts by weight of carbon black, 0.8 parts by weight of silica, and 0.7 parts by weight of silica . The solvent includes 6 parts by weight of methanol, 5 parts by weight of butanone, 3 parts by weight of isopropanol, and 3 parts by weight of ethylene glycol monobutyl ether. 7 parts by weight of auxiliary agents, including 2 parts by weight of polyether polyester modified organosiloxane, 2 parts by weight of end-group modified organosilicon leveling agent, 1 part b...

Embodiment 2

[0052] A pre-embedded channel sealing coating mainly consists of the following materials in parts by weight:

[0053] The film-forming substance includes 43 parts by weight of silicone synthetic resin, 15 parts by weight of double A-type modified epoxy resin, and 7 parts by weight of bisglycidyl ether epoxy resin. The fillers include 8 parts by weight of titanium dioxide, 7 parts by weight of zinc phosphate, 6 parts by weight of aluminum phosphate, 2.5 parts by weight of mica powder, 2.5 parts by weight of iron oxide, 1.5 parts by weight of carbon black, 0.7 parts by weight of silica, and 0.6 parts by weight of silica . The solvent includes 5.5 parts by weight of methanol, 5.5 parts by weight of butanone, 3.5 parts by weight of isopropanol, and 2.5 parts by weight of ethylene glycol monobutyl ether. Auxiliary 6 parts by weight.

[0054] A preparation method of a special sealing coating for a pre-embedded channel, comprising the following steps:

[0055] (1) 3.5 parts by wei...

Embodiment 3

[0059] A pre-embedded channel sealing coating mainly consists of the following materials in parts by weight:

[0060] The film-forming substance includes 45 parts by weight of silicone synthetic resin, 16 parts by weight of double A-type modified epoxy resin, and 8 parts by weight of bisglycidyl ether epoxy resin. The fillers include 10 parts by weight of titanium dioxide, 6 parts by weight of zinc phosphate, 5 parts by weight of aluminum phosphate, 3 parts by weight of mica powder, 3 parts by weight of iron oxide, 1.8 parts by weight of carbon black, 0.9 parts by weight of silica, and 0.9 parts by weight of silica . The solvent includes 5 parts by weight of methanol, 5 parts by weight of butanone, 4 parts by weight of isopropanol, and 2 parts by weight of ethylene glycol monobutyl ether. Auxiliary 6.5 parts by weight.

[0061] A preparation method of a pre-embedded channel sealing coating, comprising the following steps:

[0062] (1) 3.8 parts by weight of unsaturated poly...

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Abstract

The invention relates to a pre-buried channel sealing coating as well as a preparation method and application thereof. Comprising the following components in parts by weight: 35-50 parts of organic silicon synthetic resin, 5-20 parts of double-part A type modified epoxy resin, 5-10 parts of double glycidyl ether epoxy resin, 17-42 parts of filler, 10-25 parts of solvent, 3-10 parts of assistant, 3-5 parts of polyester, 2-4 parts of polytriallyl isocyanurate and 0.3-1 part of silanol. The organic silicon synthetic resin, the double-part A type modified epoxy resin and the double glycidyl ether epoxy resin are combined into a film forming substance, and the polyester, the polytriallyl isocyanurate and the silanol are combined into raw materials of a modified cross-linking agent. Through mutual cooperation, the embedded channel sealing coating not only has alkali resistance, impact resistance and insulating properties, but also has better aging resistance and corrosion resistance.

Description

technical field [0001] The invention belongs to the technical field of pre-embedded channel sealing coatings, in particular to a pre-embedded channel sealing coating and a preparation method and application thereof. Background technique [0002] The disclosure of information in this Background section is only for enhancement of understanding of the general background of the invention and should not necessarily be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art. [0003] At present, pre-embedded channel products are widely used in the field of rail transit engineering such as subways and comprehensive pipe corridors. The coating of pre-embedded channel products must meet the construction requirements and working conditions of subway tunnels and comprehensive pipe corridors. It has 100 years of anti-corrosion, and at the same time meets various performance indicators such as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D163/00C09D7/62
CPCC09D183/04C09D7/62C08K2003/2241C08K2003/328C08K2003/327C08K2003/2265C08L63/00C08K9/04C08K9/06C08K9/08C08K3/22C08K3/32C08K3/34C08K3/04C08K7/26C08K3/36
Inventor 王景风王召国刘涛武目达孙芹张阳李凡达俞学汉
Owner SHANDONG TIANDUN MINING EQUIP