Full-shielded infrared and ultraviolet polyurethane nanometer transparent heat insulating coating

A heat-insulating coating and full-shielding technology, applied in the field of functional nano-materials, can solve problems such as limited energy-saving effects, and achieve the effects of improved transparency, improved weather resistance, and high hardness

Inactive Publication Date: 2012-10-24
惠州市彩田化工实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Existing transparent heat insulation technologies mostly use ITO and ATO as shielding materials, but these two materials can only shield long-wave near-infrared, and have no obvious barrier to short-wave near-infrared and ultraviolet rays, so the energy-saving effect is limited

Method used

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  • Full-shielded infrared and ultraviolet polyurethane nanometer transparent heat insulating coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] According to the formula amount of Example 1 in Table 1, first add the polyurethane resin A component in the paint bucket, then add the nano-ATO dispersion and nano-LaB dropwise while stirring. 6 Dispersion, Nano WO 3 Dispersion, stirring and dispersing for 20min to 30min, then adding leveling agent, defoamer, adhesion promoter, solvent and curing agent B according to the formula ratio, stirring and mixing evenly, and filtering to obtain a fully shielding infrared and ultraviolet polyurethane nano Transparent thermal insulation coating.

Embodiment 2

[0030] Refer to Example 1 for the preparation process of Example 2 and Example 3.

[0031] According to relevant national standards, the basic performance of the nano polyurethane transparent heat-insulating coating of the present invention is tested, and the test results are shown in Table 2.

[0032] Table 2 Basic performance test results of nano-polyurethane transparent heat-insulating coating

[0033] Test items Test Results standard test Paint film appearance, color blue, transparent, smooth GB1927-79 hardness (pencil) ≥5H GB / T6739-1996 Adhesion, grade (circle method) 0 GB / T1720-79 Impact strength, cm 50 GB / T1732-93 Flexibility, mm 1 GB / T1731-93 Water resistance, immersion in water for 48h No significant changes GB / T1733-93 Heat resistance, bake at 100°C for 3h Paint film without bubbling, wrinkling, cracking and discoloration GB / T1735-79

[0034] The present invention adopts nanometer A...

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Abstract

The invention relates to a full-shielded infrared and ultraviolet polyurethane nanometer transparent heat insulating coating and a preparation method. The coating comprises 40 to 80% of polyurethane resin, 5 to 30% of nanometer ATO dispersions, 1 to 10% of nanometer LaB6 dispersions, 1 to 15% of nanometer WO3 dispersions, 0.5 to 3% of auxiliary, and 5 to 20% of solvent. The preparation method comprises the steps of sequentially dropwise adding the nanometer ATO dispersions, the nanometer LaB6 dispersions an the nanometer WO3 dispersions into the a polystyrene resin component A in proportion by weight based on a formula, and agitating to disperse for 15 to 30 minutes, and then adding a flatting agent, a defoamer, an adhesion promoter, a solvent and a firming agent B based on the ratio of the formula, and agitating to obtain a full-shielded nanometer transparent heat insulating coating. The coating is applied to the glass of a building, the glass of a vehicle and a cement surface for heat insulating; the coating is economic and practical, and can shield all the ultraviolet rays and infrared rays; and the full-shielded infrared and ultraviolet polyurethane nanometer transparent heat insulating coating has obvious performance on heat insulating.

Description

technical field [0001] The present invention relates to functional nano-materials, in particular to a transparent heat-insulating coating compounded by various nano-rare-earth materials and metal oxides, which fully shields the full band of sunlight infrared and ultraviolet rays, and uses polyurethane as a film-forming material. The preparation method particularly relates to a transparent heat-insulating coating which can be coated on various glass, plastic, metal and cement surfaces. Background technique [0002] my country is a country with a large energy consumption. The annual energy consumption is equivalent to 1.5 billion tons of standard coal, of which about 30% is consumed by buildings. Building glass without energy-saving technology, in summer, the sun's heat can be directly radiated from the window glass to the city. In winter, the indoor heat will radiate to the outside in the form of infrared rays. To maintain a comfortable indoor temperature in summer and winter,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D175/06C09D175/08C09D7/12C09D5/33C09D5/32
Inventor 许钧强赵庆文
Owner 惠州市彩田化工实业有限公司
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