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Weather-resistant building waterproof coating and preparation method thereof

A waterproof and weather-resistant technology for buildings, which is applied in coatings and other directions, and can solve problems such as poor weather resistance of waterproof membranes, inability to disperse moisture from inside walls, and shedding at interfaces

Inactive Publication Date: 2021-03-12
成都亢倡菱涂料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a weather-resistant architectural waterproof coating and its preparation method to solve the problem in the prior art that after the waterproof coating is used, it is easy to close the capillary pores of the base material, resulting in the moisture in the base cannot be diffused from the inside of the wall. It is pointed out that with the accumulation of stress and the thermal expansion and contraction caused by the temperature change in the natural environment, the interface will gradually fall off, making the waterproof membrane of the product poor in weather resistance.

Method used

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  • Weather-resistant building waterproof coating and preparation method thereof

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preparation example Construction

[0027] A method for preparing a weather-resistant architectural waterproof coating, the specific preparation steps comprising:

[0028] Preparation of nanometer metal oxide modified graphene oxide:

[0029] Disperse graphene oxide in water, then add nanometer metal oxide with 10-50% graphene oxide mass, after ultrasonic dispersion, suction filter, collect filter cake, and dry the filter cake to obtain nanometer metal oxide modified graphite oxide alkene;

[0030] Preparation of product weather-resistant architectural waterproof coating:

[0031] In parts by weight, sequentially take 100-200 parts of organosiloxane, 8-10 parts of emulsifier, 10-20 parts of nanoparticles, 4-8 parts of curing agent, 100-150 parts of water, 20-30 parts of nano-metal Oxide-modified graphene oxide; add water, emulsifier, curing agent, nanoparticles and nano-metal oxide modified graphene oxide into the reactor, heat and stir, then add organosiloxane, continue stirring at constant temperature after ...

Embodiment 1

[0036] Modification of nanoparticles:

[0037] The nanoparticles are added to an ethanol solution with a mass fraction of 10%, and the mass ratio of the nanoparticles to the ethanol solution is 1:10; then a coupling agent with a mass of 10% of the nanoparticles is added dropwise, and after stirring and reacting, filter, wash and drying to obtain modified nanoparticles; the nanoparticles are spherical nano-titanium dioxide; the coupling agent is a titanate coupling agent;

[0038] Preparation of nanometer metal oxide modified graphene oxide:

[0039] Dispersing graphene oxide in water, adding 10% graphene oxide mass nano-metal oxide, after ultrasonic dispersion, suction filtration, collecting filter cake, and drying the filter cake to obtain nano-metal oxide modified graphene oxide;

[0040] Preparation of product weather-resistant architectural waterproof coating:

[0041] In parts by weight, successively take 100 parts of organosiloxane, 8 parts of emulsifier, 10 parts of nan...

Embodiment 2

[0043] Modification of nanoparticles:

[0044] The nanoparticles are added to an ethanol solution with a mass fraction of 70%, and the mass ratio of the nanoparticles to the ethanol solution is 1:20; then a coupling agent with a mass of 20% of the nanoparticles is added dropwise, and after stirring and reacting, filter, wash and drying to obtain modified nanoparticles; the nanoparticles are spherical nano-silica; the coupling agent is a silane coupling agent;

[0045] Preparation of nanometer metal oxide modified graphene oxide:

[0046] Disperse graphene oxide in water, then add nano-metal oxide with 50% graphene oxide mass, after ultrasonic dispersion, suction filter, collect filter cake, and dry the filter cake to obtain nano-metal oxide modified graphene oxide;

[0047] Preparation of product weather-resistant architectural waterproof coating:

[0048] In parts by weight, successively take 200 parts of organosiloxane, 10 parts of emulsifier, 20 parts of nanoparticles, 8 ...

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Abstract

The invention discloses a weather-resistant building waterproof coating and a preparation method thereof. The weather-resistant building waterproof coating comprises the following raw materials in parts by weight: 100-200 parts of organosiloxane, 8-10 parts of an emulsifier, 10-20 parts of nanoparticles, 4-8 parts of a curing agent, 100-150 parts of water and 20-30 parts of nano metal oxide modified graphene oxide. In the nano metal oxide modified graphene oxide, a nano metal oxide is embedded into an interlayer structure of the graphene oxide, and the nano metal oxide accounts for 10-50% of the mass of the graphene oxide; and the nano metal oxide is any one of nano aluminum oxide, nano magnesium oxide, nano titanium dioxide, nano manganese dioxide, nano zirconium oxide and nano iron oxide. The obtained product has excellent weather resistance, and the service life of the waterproof function of the product can be effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a weather-resistant building waterproof coating and a preparation method thereof. Background technique [0002] Building waterproof coating has the characteristics of simple construction and strong adaptability to complex structures, and is widely used in building construction. Waterproof coatings are mainly used for waterproofing, moisture-proofing and anti-seepage of some structural parts of buildings that may be eroded by water. Therefore, there are certain requirements for high-temperature resistance and anti-corrosion performance of waterproof coatings. Existing architectural waterproof coatings mainly include polyurethane waterproof coatings, polymer cement waterproof coatings, and silicone waterproof coatings, among which silicone waterproof coatings are widely used. [0003] Silicone waterproof coatings are divided into water-based environmentally friendly wat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D7/62
CPCC08G77/04C08K2003/2227C08K2003/2241C08K2003/2244C08K2003/2262C08K2201/011C09D4/00C09D183/04C09D7/62C09D7/70C08K9/04C08K9/06C08K7/18C08K3/22C08K9/02C08K3/042C08K7/00C08K3/36C08K13/06
Inventor 雷小毛
Owner 成都亢倡菱涂料科技有限公司
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