Nano transparent insulating paint and its preparing process

A heat-insulating coating and nano-insulation technology, applied in the direction of fire-proof coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of poor dispersion and poor stability of nano-materials, the method is simple and easy, and the film-forming temperature can be reduced , Improve the effect of heat insulation effect

Inactive Publication Date: 2008-01-23
RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a nano-transparent heat-insulating coating, which can overcome the problems of poor dispersion and poor stability of nano-materials in coatings recognized in the prior art
[0005] The further technical problem to be solved by the present inventio

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  • Nano transparent insulating paint and its preparing process

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preparation example Construction

[0050] The present invention also provides a preparation method of nano-transparent heat-insulating coating, comprising the steps of:

[0051] (1) Synthesis of inorganic nanoparticle hybrid polymer resin with core / shell structure, adopting in-situ polymerization method, allowing inorganic nano heat insulation powder to participate in polymerization reaction to obtain inorganic nanoparticle hybrid polymer resin with core / shell structure, Inorganic nanoparticles are coated in polymer resin by means of chemical bonds;

[0052] (2) Blending the prepared inorganic nanoparticle hybrid polymer resin with coating additives and diluents to prepare nano transparent heat-insulating coatings, the components and weight percentages are as follows:

[0053] Inorganic nanoparticle hybrid polymer resin: 60% to 75%;

[0054] Coating additives: 1% to 10%;

[0055] Thinner: 20% to 35%;

[0056] Preferably, in step (1), during in-situ polymerization, the surface of the inorganic nano heat-insul...

example 1

[0059] In this example, the inorganic nano-particle hybrid polymer resin is an inorganic nano-indium tin oxide (ITO) hybrid polyacrylic resin, and the components and weight percentages of the nano-transparent heat-insulating coating are as follows:

[0060] Inorganic nano-indium tin oxide (ITO) hybrid polyacrylic resin: 60% to 75%;

[0061] Coating additives: 1% to 10%;

[0062] Thinner: 20% to 35%.

[0063] In the hybrid resin, the content of nano heat insulating powder indium tin oxide (ITO) is 1% to 10%, and its particle size is 10 to 100nm. The inorganic nanomaterials are processed by silane coupling agent or titanate Surface Modification.

[0064] The coating additives include at least one of: a leveling agent, a defoamer, a film-forming aid, and a thickener. The thickener is a hydroxyacrylic acid water-soluble dispersion (WT-102), and the film-forming aid The agent is alcohol ester compound (alcohol ester-12), the leveling agent is acrylic acid copolymer, and the defo...

example 2

[0073] In this example, the inorganic nano-particle hybrid polymer resin adopts inorganic nano-indium tin oxide (ITO) hybrid acrylic acid-modified polyurethane, and the components and weight percentages of the nano-transparent heat-insulating coating are as follows:

[0074] Inorganic nano-indium tin oxide (ITO) hybrid acrylic modified polyurethane: 60% to 75%;

[0075] Coating additives: 1% to 10%;

[0076] Thinner: 20% to 35%.

[0077] Among them, inorganic nano-indium tin oxide (ITO) hybrid acrylic acid modified polyurethane is used as a film-forming substance of nano-transparent heat-insulating coating, and its components and parts by weight are as follows:

[0078] Polyether or polyester diol 30~60;

[0079] Aromatic diisocyanate (TDI) 10-30;

[0080] Chain extender short chain aliphatic diol 1~5;

[0081] Crosslinking agent trihydric polyol (DMPA) 1~6;

[0082] Short-chain aliphatic neutralizer triethylamine (TEA) 1.5-4.5;

[0083] End-capping agent hydroxy acrylat...

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Abstract

The invention relates to a nano transparent heat insulation coating, which comprises the following components: inorganic nano particle hybrid high molecular resin, coating additive and thinner. Wherein, the inorganic nano particle hybrid high molecular resin is the resin with core/shell structure and synthesized by inorganic nano heat insulation powder and high molecular resin through in-situ polymerization and the high molecular resin covers the nano heat insulation powder. The invention also provides a preparation method of the nano transparent heat insulation coating. The nano transparent heat insulation coating film forming material is the inorganic nano particle hybrid high molecular resin and is characterized by strong adhesive force, transparency and shielding infrared for heat insulation, which can be coated on the surfaces of glass, metals and cement and is especially for glass of cars or buildings. The invention adopts the inorganic nano particle hybrid high molecular resin with core/shell structure prepared through in-situ polymerization, which is simple and easy and has good coating properties.

Description

technical field [0001] The invention relates to a heat-insulating paint, in particular to a nano-transparent heat-insulating paint and a preparation method thereof. Background technique [0002] With the deepening of the construction of a resource-saving and environment-friendly society, in order to reduce energy consumption and meet the needs of energy conservation and environmental protection, it is of great practical significance to develop heat-insulating coatings, especially nano Transparent thermal insulation coatings have attracted widespread attention. The research and development in the United States and Japan started earlier. The US patent US5518810 and the European patent EP1040913 are both prepared by physically blending nano-thermal insulation materials ITO and polymer film-forming agents. A transparent heat-insulating nanocomposite coating. [0003] my country's research on transparent heat-insulating coatings started relatively late, and some domestic patents...

Claims

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Application Information

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IPC IPC(8): C09D133/12C09D133/08C09D183/00C09D175/04C09D5/18
Inventor 李冬霜李荣先杨建陈丽琼
Owner RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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