Factory price Graphene Heat Cooling Coating

The Application of Radiation Cooling Coating to LED thermal imaging

Ⅰ.Product overview

Radiation Heat Cooling Coating is a kind of coating that radiate heat, which could send out the heat from the objects in the form of 1-13.5μm wave length so that to low the temperature of inside and outside of objects. It can be used in vacuum environment and not subject to surroundings. What's more it has obvious effectiveness in heating cooling. When performing the fuction of radiation heat cooling, the coating is of the characteristics of self-cleaning property, non-corrosibility, water-proof, fire-proof, insulativity, acid and alkali stability and construction convenience etc.

Ⅱ.Working principle

Radiation heat cooling coating adopts high-performance cooling solution, which is of some special performance such as high visible light, near infrared reflectance, therman infared emissivity and stability. Meanwhile it is of good physical and chemical properties as well as application property and varous compund performance.

The working principle of this radiation solution is to produce binding force by the condensate of inorganic colloidal particles (less than 100nm). The addtion of materials as carbon nanotubes which of high pyroconductivity and radioactivity increased the coefficient of thermal conductivity and radioactivity increased the coefficent of thermal conductivity. The nonmaterial component that make the coating surface smooth in macro view and rough in micro view could greatly increase the contact are of heat sink with outside, reduce the heat shield, significantly increased the cooling effect. At the same time, the adding of large quantity of various spinel as composite infrared radiator, which is transited by electron not only increased the impurity level, improved the coefficient of infrared radiation but also keeping the excellent performance such as corresponding themal stability, heat resistance, high strength, corrosion resistance and abrasion resistance. 

In order to overall improve the strength and stability of cooling coating, we also add Rare Earth Oxide in it to improve the activity of coating composition. REO is the preferred material for doping and stabilizing coating structure.

Main Characteristics :

1. Radiation heat cooling coating is of high thermal conductivity and large cooling surface area. Meanwhile within a wide wavelength range (1-20μm), it has high emissivity, which can significantly improve the compund performances as conduction, convection and radiation cooling.

2. Radiation heat cooling carting can operates steadily in high temperature, including thermal and chemical stability, good weather resistance, acid and alkaline resistance.

3. Radiation heat cooling coating can strongly combine with metal and ceramic substrate. It has enough mechanical strength, toughness and will not peel off by the suddenly change of temperature.

4. Radiation heat cooling coating is of good coatng process, which make performance easy and convenient. It can protect the objects in the long run due to its characteristics of abrasion resistance, shock resistance and long service life.

5. Radiation heat cooling coating is a new type of environmental and energy saving coatings. It does no harm to human body before and after construction.

III. Application

Radiation heat cooling coatings are with high heat insulation protective and decorative function. The object wihc need to enhance heat dissipation, brush in thin layer, and the object need heat preservation can coat according to actural circumstance to brush a certain thickness.

Coatihng has high chemical stability and environmental impact is small, and can be used in to the main heat source like solar heat or infrared radiant heat.

1. Acidic, alkaline and corrosive environment

2. High and low temperature changing environment

3. High humidity enviroment

4. High cleanliness requirements of the environment

5. Movement, rotation, vibration environment

6. Limited space or weight of the environment

7. Environment which is in limited inspection and maintenance

8. Alien, irregular and conventional adiabatic constrained environment

IV.Target Objects:

Coating with excellent adhesion, easy construction, almost can be used on any clean, dry surface.

Coating can besmear to brush in steel, cast iron, aluminum, copper, stainless steel, magnesium, stone, wood, cement, brick, ceramics, glass, textiles, plastics, paper, organic glass, asbestos, various kinds of fiber boad, veneer, asphalt, bubble the foam(sponge), polyurethane, polypropylene coating surface, etc.

In order to guarantee the adhesion effect, if necessary, should make proper preprocessing for the surface.

V.Thickness

According to wavelength penetration, generally is the stronger the penetrating poewer and the wavelength, the greater the thickness is. If it is used for themal insulation or is cold, and the thickness of coating on heat resistance (thermal conductivity), should choose according to different purposes.

This porduct has been able to pass Swiss environmental certification, CQC China quality environmental protection product certification.

VI. Coating Parameters

Film color:  Multi colors

Hardness:  5H

Heat conductivity coefficient:  >=150w/mk

Strength of extension:  2500kpa

Reflectivity in visible region:  85%

Anit-corrosion property:   Good

reflectivity near infrared region: 80%

Adhesive force:  Grade 1

300 °K infrared hemisphere reflectivity: 90%

Damp heat test:  2000h

Applicable temperature: -5-600°C

Aging test: 2000 h

Volume resistivity: ≥1x10Λ12Ωm

Water resistence:  72h

Oil resistivity:   ≥72H

Acid-base resistance property: 72h