Titanium sol-containing organosiloxane hybrid emulsion and modified silicate paint

An organosiloxane, inorganic silicate technology, applied in anti-corrosion coatings, anti-fouling/underwater coatings, coatings, etc. Affect the appearance of buildings and other problems, achieve obvious hydrophobic performance, obvious photocatalytic performance, good self-cleaning effect

Inactive Publication Date: 2019-03-22
NANXIONG MATERIAL PRODION BASE OF CHINESE ACADEMY OF SCI GUANGZHOU CHEM +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional inorganic silicate coatings are easy to stain during use, and do not have self-cleaning properties. In addition, the anti-ultraviolet, antibacterial, and aging resistance are not good enough, which seriously affects the appearance of buildings, thus limiting Large-scale application of inorganic coatings in interior and exterior wall coatings

Method used

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  • Titanium sol-containing organosiloxane hybrid emulsion and modified silicate paint
  • Titanium sol-containing organosiloxane hybrid emulsion and modified silicate paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A preparation method of a modified inorganic silicate paint, comprising the following steps:

[0037] (1) Preparation of long-chain organosiloxane hybrid emulsion containing titanium sol

[0038] Add 10 parts by weight of tetrabutyl titanate, 60 parts by weight of absolute ethanol, and 5 parts of deionized water into a three-necked flask, heat to 60°C, then add 0.5 parts by weight of hydrochloric acid (mass fraction 37%), at 60°C After reacting for 8 hours, a titanium sol with a solid content of 3% was obtained.

[0039] Add 80 parts by weight of deionized water, 2 parts by weight of dodecylbenzenesulfonic acid, 4 parts by weight of alkylphenol polyoxyethylene ether, 10 parts by weight of the reaction vessel that thermometer, stirrer, condensing pipe and nitrogen are fed into. Parts by weight of octamethylcyclotetrasiloxane were reacted at 70°C for 9 hours to obtain a long-chain organosiloxane emulsion with a solid content of 10%.

[0040] Add 40 parts by weight of ti...

Embodiment 2

[0045] A preparation method of a modified inorganic silicate paint, comprising the following steps:

[0046] (1) Preparation of long-chain organosiloxane hybrid emulsion containing titanium sol

[0047] Add 20 parts by weight of isopropyl titanate, 70 parts by weight of absolute ethanol, and 10 parts by weight of deionized water into a three-necked flask, heat to 50°C, then add 1.5 parts by weight of nitric acid, and react at 50°C for 8 hours to obtain a solid Titanium sol with a content of 5.6%.

[0048] Add 80 parts by weight of deionized water, 3 parts by weight of cetylbenzenesulfonic acid, 6 parts by weight of polyoxyethylene alkyl ether, and 20 parts by weight of Octamethylcyclotetrasiloxane was reacted at 60° C. for 9 hours to obtain a long-chain organosiloxane emulsion with a solid content of 18.3%.

[0049] Add 60 parts by weight of titanium sol with a solid content of 5.6% to 40 parts by weight of long-chain organosiloxane emulsion with a solid content of 18.3%, and ...

Embodiment 3

[0054] A preparation method of a modified inorganic silicate paint, comprising the following steps:

[0055] (1) Preparation of long-chain organosiloxane hybrid emulsion containing titanium sol

[0056] Add 40 parts by weight of isopropyl titanate, 70 parts by weight of absolute ethanol, and 8 parts by weight of deionized water into a three-necked flask, heat it to 55°C, then add 1.5 parts by weight of nitric acid and 0.5 parts by weight of acetic acid, at 40°C The reaction was carried out for 8 hours to obtain a titanium sol with a solid content of 10%.

[0057] Add 80 parts by weight of deionized water, 5 parts by weight of cetylbenzenesulfonic acid, 5 parts by weight of polyoxyethylene sorbitan stearate , 30 parts by weight of octamethylcyclotetrasiloxane were reacted at 70° C. for 9 hours to obtain a long-chain organosiloxane emulsion with a solid content of 25%.

[0058] Add 50 parts by weight of a titanium sol with a solid content of 10% to 50 parts by weight of a long...

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Abstract

The invention belongs to the technical field of preparation of paint, and discloses titanium sol-containing organosiloxane hybrid emulsion and modified silicate paint. The paint is prepared from the following components in parts by weight: 100 parts of an inorganic silicate solution, 2-40 parts of the titanium sol-containing long-chain organosiloxane hybrid emulsion, 5-40 parts of silicon sol, 10-80 parts of water, 0.5-4 parts of a defoaming agent, 0.5-4 parts of a dispersing agent, 0.5-4 parts of a wetting agent, 5-30 parts of pigment and 10-65 parts of filler. The modified silicate paint provided by the invention can be painted by using processed such as roll painting, spray painting and brush painting, has a surface contact angle of 105-145 degrees, and has good water resistance and acid and alkali resistance; the alkali resistance of the paint can be maintained to be normal for 48h, and the paint is washable (can be washed for 1200 times without exposing base coat); the problems such as cracking, falling off and powder falling can be effectively prevented during use; the paint has a potential of being widely used in the field of high hydrophobic, high anti-fouling and self-cleaning interior and exterior wall coatings.

Description

technical field [0001] The invention belongs to the field of inorganic silicate coatings, in particular to a titanium-containing sol organosiloxane hybrid emulsion and a modified silicate coating. Background technique [0002] In recent years, functional interior and exterior wall coatings have become more and more popular, and have been widely used in a large number of engineering projects. Among them, inorganic silicate coatings, because of their rich preparation raw materials, good film-forming properties, high temperature resistance, and aging resistance, not only meet the energy-saving needs of contemporary building materials, but also meet people's requirements for environmental protection, and thus have been greatly favored. development and production. However, traditional inorganic silicate coatings are easy to stain during use, and do not have self-cleaning properties. In addition, the anti-ultraviolet, antibacterial, and aging resistance are not good enough, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/398C08G77/04C09D1/00C09D5/16C09D5/08C09D7/65
CPCC08G77/04C08G77/398C09D1/00C09D5/08C09D5/1687C09D7/65
Inventor 刘伟区杨麦萍王政芳
Owner NANXIONG MATERIAL PRODION BASE OF CHINESE ACADEMY OF SCI GUANGZHOU CHEM
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