TW201430074A - Heat dissipation nano-coating material and preparation method thereof - Google Patents

Abstract

The present invention relates to a heat dissipation nano-coating material and a preparation method thereof. The preparation method includes the following steps: a. dissolving a fluorocarbon resin as a base material in a mixed solvent to obtain a base material-mixing solution; b. dissolving in the mixed solvent a filler material which has a porous structure and 0.2 to 0.33 time weight ratio of the base material to obtain a filler material-mixing solution; c. carrying out filtration of the base material-mixing solution obtained by the step a and the filler material-mixing solution obtained by the step b; and d. homogeneously mixing said base material-mixing solution and filler material-mixing solution after carrying out filtration in step c. Therefore, the present invention can use a fluorocarbon resin as a base material and then mix it with a filler material having a porous structure to prepare a heat dissipation nano-coating material which has the effects of good dirt resistance and high heat dissipation.

Description

Nano heat dissipation coating and preparation method

The invention relates to a nano heat-dissipating paint and a preparation method thereof, in particular to a designer who mixes a filler having a pore structure based on a fluorocarbon resin and uses a pore structure of the filler to improve heat dissipation.

According to heat dissipation components such as metal heat sinks and heat pipes, the heat dissipation effect is good, but it is expensive and not suitable for light-weight product design, so there is the development and application of heat-dissipating coatings. However, the existing heat-dissipating coating is cured on the heat-dissipating surface to form a heat-dissipating layer, and the heat-resistant layer formed after curing due to poor weather resistance, heat resistance, low-temperature resistance, and chemical resistance of the base material used. The heat dissipation is easily reduced by the adhesion of contaminants; in addition, the filler used in the existing heat-dissipating coatings does not have a pore structure, so the heat dissipation which can be exhibited is not high.

The main object of the present invention is to provide a nano heat-dissipating paint and a preparation method thereof, which have the effects of good anti-pollution and high heat dissipation.

Another object of the present invention is to facilitate the uniform dispersion of the filler.

In order to achieve the above effects, the nano heat-dissipating coating structure of the present invention is characterized in that a filler having a pore structure is mixed with a fluorocarbon resin as a base, and the weight ratio of the base material to the filler is 3 to 5 times.

In addition, the filler is selected from the group consisting of nano bamboo charcoal, carbon nanotubes, nano zinc oxide, nano cerium oxide or a combination of the foregoing fillers; the mixed solvent of the base material and the filler is selected from the group consisting of natural water, ethyl acetate, and anhydrous Ethanol, distilled water or a combination of the foregoing mixed solvents; the weight ratio of the base material to the mixed solvent is from 0.9 to 1.4 times, and the weight ratio of the filler to the mixed solvent is from 0.3 to 0.6 times.

The preparation method of the nano heat dissipating paint of the present invention comprises the following steps: a. dissolving the fluorocarbon resin as a base material in a mixed solvent to obtain a base material mixture; b. adding a weight ratio of the base material to 0.2 to 0.33 a filler having a pore structure is dissolved in a mixed solvent to obtain a filler mixture; c. filtering the base mixture obtained in the step a and the filler mixture obtained in the step b; and d. The filtered mixture of the base material and the filler mixture are stirred and mixed uniformly.

However, the weight ratio of the binder of the step a to the mixed solvent is 0.9 to 1.4 times, the weight ratio of the filler of the step b to the mixed solvent is 0.3 to 0.6 times, the step c is filtered by a 350 mesh sieve, and the step d is by using a shear. The emulsifier is stirred and mixed at high speed.

[00010] First, as shown in FIG. 1 , the preparation method of the nano heat-dissipating paint of the present invention comprises the following steps: a. dissolving the fluorocarbon resin as a base material in a mixed solvent to obtain a base material mixture. a liquid, and the weight ratio of the base material to the mixed solvent is 0.9 to 1.4 times; b. a filler having a pore structure in a weight ratio of 0.2 to 0.33 times the base material is dissolved in a mixed solvent to obtain a filler mixture, and The weight ratio of the filler to the mixed solvent is 0.3 to 0.6 times; c. the mixture of the base obtained in the step a and the mixture obtained in the step b are filtered using a 350 mesh screen; and d. The filtered mixture of the base material and the filler is uniformly mixed by a shear emulsifier at a high speed. [00011] In the first embodiment of the nano heat-dissipating paint of the present invention, 120 g of fluorocarbon resin is dissolved in 120 g of ethyl acetate to obtain a base mixture, and 30 g of naphtha charcoal is dissolved in 80 g of absolute ethanol. The mixture of the filler is filtered, and the mixture of the base material and the filler is filtered by a 350 mesh sieve, and then the mixture of the base material and the filler is stirred at a high speed by a shear emulsifier for 10 minutes, and the mixture is uniformly mixed into a nanometer. Heat sink coating (see "Figure 2"). [00012] In addition, in the second embodiment of the nano heat-dissipating paint of the present invention, 120 g of fluorocarbon resin is dissolved in 100 g of water to obtain a base mixture, and 30 g of naphtha charcoal is dissolved in 60 g of ethyl acetate. The mixture of the filler is filtered, and the mixture of the base material and the filler is filtered by a 350 mesh sieve, and then the mixture of the base material and the filler is stirred at a high speed by a shear emulsifier for 10 minutes, and the mixture is uniformly mixed into a nanometer. Heat sink coating. In addition, in the third embodiment of the nano heat-dissipating paint of the present invention, 120 g of fluorocarbon resin is dissolved in 100 g of ethyl acetate to obtain a base mixture, and 30 g of naphtha charcoal is dissolved in 70 g of distilled water to obtain a filler mixture. Liquid, and the mixture of the base material and the filler is filtered by a 350 mesh sieve, and then the mixture of the base material and the filler is stirred at a high speed by a shear emulsifier for 10 minutes, and uniformly mixed into a nano heat-dissipating paint. . [00014] Based on the constitution, the present invention uses a fluorocarbon resin as a base material for a nano heat-dissipating paint, and the fluorine element introduced by the fluorocarbon resin has a large electronegativity and a strong carbon-fluorine bond, and has excellent weather resistance. , heat resistance, low temperature resistance and chemical resistance, and has a unique self-cleaning property, which in turn produces anti-pollution and environmental protection; in addition, it is selected from the group consisting of nano bamboo charcoal, carbon nanotubes, nano zinc oxide, and nano oxidation.锗 or a combination of the foregoing fillers is used as a filler for nano heat-dissipating coatings, and these fillers have a highly developed pore structure, resulting in a large surface area, increased diffusion surface area, and accelerated heat dissipation rate; among them, nano-charcoal has high radiant energy. The heat is low, which is also beneficial to improve the heat dissipation effect of the material; therefore, it has the effects of good anti-pollution and high heat dissipation. Further, a combination selected from the group consisting of dicamba, ethyl acetate, absolute ethanol, distilled water or the aforementioned mixed solvent is used as a mixed solvent, and since the mixed solvent has a good dissolving effect, it also has an effect of facilitating uniform dispersion of the filler. [00015] In summary, the technical means disclosed in the present invention have the invention patents such as "novelty", "progressiveness" and "available for industrial use", and pray for the patent to encourage the invention. There is no sense of morality. [00016] However, the drawings and descriptions disclosed above are only preferred embodiments of the present invention, and those skilled in the art who are familiar with the art, the modifications or equivalent changes made in the spirit of the present invention should still include the patent application in this case. Within the scope.

1 is a flow chart showing the steps of a method for preparing a nano heat-dissipating paint of the present invention. 2 is an electron micrograph of the nano heat-dissipating paint of the present invention.

Claims (9)

A nano heat-dissipating coating is a filler having a pore structure based on a fluorocarbon resin, and the weight ratio of the base material to the filler is 3 to 5 times. The nano heat-dissipating paint of claim 1, wherein the filler is selected from the group consisting of nano bamboo charcoal, carbon nanotubes, nano zinc oxide, nano cerium oxide or a combination of the foregoing fillers. The nano heat-dissipating paint according to claim 1 or 2, wherein the mixed solvent of the base material and the filler is selected from the group consisting of natural water, ethyl acetate, absolute ethanol, distilled water or a combination of the foregoing mixed solvents. The nano heat-dissipating paint of claim 3, wherein the weight ratio of the base material to the mixed solvent is from 0.9 to 1.4 times, and the weight ratio of the filler to the mixed solvent is from 0.3 to 0.6 times. A method for preparing a nano heat-dissipating paint comprises the following steps: a. dissolving a fluorocarbon resin as a base material in a mixed solvent to obtain a base material mixture; b. adding a weight ratio of 0.2 to 0.33 times the base material. a filler having a pore structure is dissolved in a mixed solvent to obtain a filler mixture; c. filtering the base mixture obtained in the step a and the filler mixture obtained in the step b; and d. after being filtered through the step c The base mixture and the filler mixture are stirred and mixed uniformly. The method for preparing a nano heat-dissipating paint according to claim 5, wherein the weight ratio of the base material to the mixed solvent in the step a is 0.9 to 1.4 times, and the weight ratio of the filler in the step b to the mixed solvent is 0.3 to 0.6 times. The method for preparing a nano heat-dissipating paint according to claim 5, wherein the step c is filtered using a sieve. The method for preparing a nano heat-dissipating paint according to claim 5, wherein the step c is filtered using a 350 mesh screen. The method for preparing a nano heat-dissipating paint according to claim 5, wherein the step d is uniformly mixed by a shear emulsifier at a high speed.