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Fluorosilicic emulsion paint capable of preventing scale deposite and its production process

A technology for anti-scaling and latex coatings, which is applied to latex paints and coatings to achieve strong anti-scaling properties, increased water contact angle, and simple production processes

Inactive Publication Date: 2005-06-08
广州电器科学研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there are many reports on the water heater's anti-scaling using physical methods (magnetized water) and chemical methods (softening of hard water), but no successful reports on the use of coatings for anti-scaling

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The present invention is further illustrated by the following examples.

[0033] (1) Synthesize silicone resin first

[0034] Add 400ml of water and 100ml of isopropanol in a three-necked flask with a dropping device, stirring and condenser, raise the temperature to 40°C, and dissolve 30 grams of methyltrichlorosilane in 200ml of toluene within 2 hours, and 31 grams of The solution of dimethyldichlorosilane, 24 grams of phenyltrichlorosilane and 25 grams of diphenyldichlorosilane was added dropwise, cooled to room temperature, the acidic aqueous layer was separated, and the toluene layer was washed with water until neutral. Distill off low boilers and part of the toluene at 120°C, then distill and concentrate the toluene layer at 150°C and 600mmHg to obtain a resin.

[0035] (2) Silicone resin emulsion made from the silicone resin synthesized in (1)

[0036] Add 40 parts of deionized water, 3 parts of ethylene glycol, 0.2 parts of tributyl phosphate, and 4 parts of po...

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PUM

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Abstract

The invention discloses a fluorine-silicon anti-scaling latex paint, which consists of 60-80% of silicone resin emulsion, 10-30% of polytetrafluoroethylene emulsion, 10-30% of color paste, and 0.1% of defoaming agent. ~1% composition, the total amount of the above-mentioned substances is 100%, wherein the silicone resin in the silicone resin emulsion is composed of 10-50 parts by weight of methyl chlorosilane monomer, 10-45 part of phenyl chlorosilane monomer, aromatic hydrocarbon solvent 100-500, alcohol 50-200, water 100-1000; the silicone resin emulsion is composed of methyl chlorosilane monomer and phenyl chlorosilane monomer dissolved in aromatic hydrocarbon, and then mixed with the water phase composed of alcohol and water at a temperature of Hydrolyze at 25-80°C for 1-3 hours; separate the organic phase after separating the acidic water layer, polycondense at 100-170°C for 1-4 hours to obtain silicone resin, and then make the obtained silicone resin, Formulated with water, leveling agent, emulsifier and defoamer.

Description

technical field [0001] The invention relates to a fluorosilicone anti-scaling latex paint and a production method thereof. Background technique [0002] Fluorosilicone anti-scaling latex coatings are widely used in anti-scaling coatings for electric kettles, water heaters and boilers. coating. [0003] As we all know, in order to make the surface of the material not scale or less scale, its surface must be hydrophobic. It is natural to think of wax, silicone and fluororesin. Among them, the water contact angle of polytetrafluoroethylene can reach 110°. However, the non-stickiness of fluororesin makes it relatively poor in adhesion to metal materials. For this reason, the surface of the substrate should be specially treated and sintered at about 400°C, otherwise the coating performance will be poor. It has been reported in the literature that polydimethylsiloxane and polyphenylmethylsiloxane in silicone resins have excellent bonding properties to the adhered materials, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/02C09D183/00
Inventor 黄克均蔡鸣
Owner 广州电器科学研究院有限公司
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