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Solvent-free quick-curing reaction type waterproof coating and preparation method thereof, and roll-coating laminated waterproof construction system and construction method thereof

A fast-curing, waterproof coating technology, applied in polyether coatings, building structures, infrastructure engineering, etc., can solve the problems of low solid content of water-emulsion coatings, influence of drying speed, environmental pollution, etc., and achieve curing and film-forming speed Fast, improve waterproof performance, improve the effect of curing speed

Active Publication Date: 2022-08-09
BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the above-mentioned problems, such as water-emulsion coatings have low solid content, limited drying speed and affect construction efficiency, and cannot be used at low temperatures, and are generally not suitable for construction below 5°C; a large amount of solvent oil, toluene, Benzene aromatic compounds such as xylene lead to a large amount of volatile gas in polyurethane waterproof coatings, which are highly toxic and pollute the environment; solvent-free polyurethane coatings have many problems such as drying speed.

Method used

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  • Solvent-free quick-curing reaction type waterproof coating and preparation method thereof, and roll-coating laminated waterproof construction system and construction method thereof
  • Solvent-free quick-curing reaction type waterproof coating and preparation method thereof, and roll-coating laminated waterproof construction system and construction method thereof
  • Solvent-free quick-curing reaction type waterproof coating and preparation method thereof, and roll-coating laminated waterproof construction system and construction method thereof

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preparation example Construction

[0064] In the embodiment of the present invention, the preparation method of solvent-free rapid curing reaction type waterproof coating comprises:

[0065] (1) Add alkoxysilyl modified polyether polymer resin, heavy powder, optional light powder, plasticizer and dispersion stabilizer to the reaction kettle, first adjust the rotating speed of the high-speed disperser to 1000rpm, After 5min, adjust the speed of the high-speed disperser to 1750rpm, and disperse at high speed for 40min at this speed;

[0066] (2) Add dehydrating agent, coupling agent and optional thixotropic agent, adjust the rotating speed of high-speed disperser to 1000rpm, keep stirring for 50min under vacuum condition, and detect water content to satisfy water content≤1200ppm;

[0067] (3) adding a catalyst under normal pressure, stirring at room temperature for 30 min under vacuum conditions, and turning off the stirrer and vacuum pump to obtain a solvent-free fast curing reaction type waterproof coating.

...

Embodiment 1

[0072] Solvent-free quick-curing reaction type waterproof coating ratio: 80 parts of methyldimethoxysilyl modified polyether polymer resin, 260 parts of heavy calcium powder, 60 parts of light calcium powder, 80 parts of plasticizer DIDP, polyamide wax 2 parts, 30 parts of terpene resin, 3 parts of vinyltrimethoxysilane, 3 parts of aminosilane coupling agent, and 3 parts of dibutyltin dilaurate.

[0073] After the coating is prepared, its key physical properties are tested, and the results are shown in Table 1.

Embodiment 2

[0075] Solvent-free rapid curing reaction type waterproof coating ratio: 100 parts of methyldimethoxysilyl modified polyether polymer resin, 280 parts of talc, 85 parts of fumed silica, 90 parts of DINP, 3 parts of polyamide wax, 40 parts of terpene resin, 4 parts of vinyltrimethoxysilane, 4 parts of aminosilane coupling agent, and 4 parts of catalyst dibutyltin dimercaptoacetate.

[0076] After the coating is prepared, its key physical properties are tested, and the results are shown in Table 1.

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Abstract

The invention discloses a solvent-free quick-curing reaction type waterproof coating and a preparation method thereof, a coil-coating superimposed waterproof structure system and a construction method thereof. The raw material composition of the solvent-free rapid curing reaction type waterproof coating includes: 80-120 parts by weight of alkoxysilyl modified polyether polymer resin, 20-40 parts by weight of dispersion stabilizer, 260-320 parts by weight of heavy powder, 70-100 parts by weight of plasticizer, 3-5 parts by weight of dehydrating agent, 3-5 parts by weight of silane coupling agent, and 2-4 parts by weight of organic tin catalyst. The present invention can be constructed at low temperature (-20~5℃), has a solid content of ≥99%, can meet the construction thickness requirement (thickness 1.5~2.0mm) at one time, has high bonding strength, fast curing film formation speed at low temperature, etc. Features, greatly improve construction efficiency and solve the pain points in winter construction.

Description

technical field [0001] The invention belongs to the field of architectural coating materials, and more particularly, relates to a solvent-free rapid curing reaction type waterproof coating and a preparation method thereof, a roll-coating laminated waterproof construction system and a construction method thereof. Background technique [0002] The waterproof coating can work in the complex-shaped construction environment, and can form a continuous waterproof membrane layer without joints, with a remarkable waterproof effect, and is suitable for various waterproof engineering systems such as roofs, basements, bridges, and pools. [0003] Polyurethane waterproof coatings are widely used in the field of building waterproofing due to their excellent mechanical properties, good low temperature flexibility, and excellent chemical resistance. However, a large amount of benzene-based aromatic compounds such as solvent oil, toluene and xylene are added to many products on the market at...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D171/00C09D7/63E04B1/66E04D11/02E02D31/02E01D19/08E01D101/40
CPCC09D171/00C09D7/63E04B1/66E04B1/665E04D11/02E02D31/02E02D31/025E01D19/083C08L2205/025C08L2205/03C08L2205/035E02D2300/0006E02D2300/0045E01D2101/40C08L45/00C08K13/02C08K5/57C08K13/04C08L61/14C08L71/00
Inventor 张磊许宁丁红梅刘雪峰胡国雄段存业田凤兰
Owner BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
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