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Water-based fluorocarbon heat insulation coating and preparation method

A thermal insulation, water-based fluorocarbon technology, applied in the field of coatings, can solve the problems of poor stain resistance, no air permeability, peeling of the finish layer, etc., and achieve outstanding heat insulation effect, low thermal conductivity, and low heat storage Effect

Inactive Publication Date: 2014-02-12
SHENZHEN GRANDLAND ENVIRONMENTAL COATING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many high-end coatings used in the market, such as elastic thermal insulation materials with poor air permeability, and poor weather resistance and stain resistance, which cannot reach the service life of 25 years; although silicone acrylic exterior wall paint has air permeability, its weather resistance is far away. The service life is far less than 25 years; although oily fluorocarbon products have excellent weather resistance, oily fluorocarbon products are neither environmentally friendly nor breathable. When it rains, it is easy to make rainwater impervious to the inside of the paint film come out, resulting in bubbling, so that the finish layer falls off in a large area, affecting the service life

Method used

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  • Water-based fluorocarbon heat insulation coating and preparation method
  • Water-based fluorocarbon heat insulation coating and preparation method
  • Water-based fluorocarbon heat insulation coating and preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0031] The water is deionized water, which is the dispersion medium of the whole formula; the water-based fluorocarbon emulsion is a fluorine-modified emulsion with excellent weather resistance, with a solid content of 48-50%, and a fluorine content of 9-10%, which is The coating film provides excellent weather resistance, stain resistance, water resistance, alkali resistance and enhanced adhesion, and is also one of the base materials for coatings.

[0032] The dispersant is an anionic polyfunctional polymer alcohol amine salt solution, which can increase the gloss and fullness of the coating film, reduce the viscosity and improve the wetting effect of the pigment; improve the storage stability and workability of the coating, and does not contain alkane phenol ethoxylates.

[0033] The titanium dioxide is imported rutile titanium dioxide, which has high refractive index and high whiteness, can produce high refraction and reflection to sunlight, and has good weather resistance...

Embodiment 2

[0046] The difference from Example 1 is that the main film-forming material water-based fluorocarbon emulsion is of different types. In this example, vinylidene fluoride (VDF) copolymer and polymethyl methacrylate (PMMA) are used at the molecular level. The mixture of the PMMA ester group and the PVDF unit interacts strongly, so that the ester group can be protected by PVDF, so the coating film has good water resistance and excellent weather resistance; and its fluorine content is ≥ 18%, and the solid content is 50±1%; the minimum film-forming temperature is 32°C; the glass transition temperature is about 29°C, and the average particle size is 200nm. The rest of the materials used are the same as in Example 1, only the amount used is different, so no more details are given here.

[0047]The quality and technical indicators of the coating film obtained by the above-mentioned embodiment 2 component distribution ratio and preparation method are shown in Table 2.

[0048] The mat...

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Abstract

A water-based fluorocarbon heat insulation coating is prepared by the following components by weight: 100 to 250 parts of water, 6 to 8 parts of dispersing agent, 2 to 4 parts of defoamer A, pH regulators of right amount, 30 to 40 parts of propylene glycol, 200 to 250 parts of titanium dioxide powder, 4 to 7 parts of mildew preventive, 2 to 4 parts of defoamer B, 400 to 500 parts of water-based fluorocarbon emulsion, 28 to 40 parts of film-forming assistant, 15 to 30 parts of heat insulation material A, 25 to 40 parts of heat insulation material B, 6 to 10 parts of flatting agent, 6 to 10 parts of thickening agent and 2.5 parts of preservative. A product of the water-based fluorocarbon heat insulation coating has various performances, can achieve the effect of oil-based fluorocarbon coating, can overcome the shortcomings of the oil-based fluorocarbon coating, and can meet requirements of an external wall heat insulation system in addition.

Description

technical field [0001] The invention relates to a coating, in particular to a water-based fluorocarbon thermal insulation coating applied on the surface of a building exterior wall and a preparation method thereof. Background technique [0002] In China, as hundreds of millions of square meters of buildings are put into use every year, buildings have become the current major energy consumers in our country. They continue to consume a large amount of energy and pose a serious threat to industrial energy consumption. It is imperative to vigorously develop energy-saving houses. It also provides a huge market potential for advanced energy-saving building materials and technologies. As the decoration and effect of the external thermal insulation surface layer, it is particularly important, and JGJ_144-2004 Technical Regulations for External Thermal Insulation Engineering of External Walls stipulates that under the conditions of normal use and normal maintenance, the service life ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D127/16C09D133/12C09D7/12C09D5/33
Inventor 赵雪连宋梓琪
Owner SHENZHEN GRANDLAND ENVIRONMENTAL COATING CO LTD
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