CN103756437A - Tailing-containing heat-dissipating coating - Google Patents

Abstract

The invention discloses a tailing-containing heat-dissipating coating. The coating is prepared from the following raw materials in parts by weight: 90-97 parts of polypropylene, 0.6-1 part of 6-butylated hydroxytoluene, 0.5-1 part of vanadium boride, 1-2 parts of glucose, 2-4 parts of tailing, 1-2 parts of 2-phenylimidazoline, 10-13 parts of sepiolite powder, 0.8-1 part of an antioxidant 1010, 1-2 parts of sodium potassium tartrate, 5-7 parts of glycerol triacetate, 4-6 parts of light calcium carbonate and 10-12 parts of a composite filler. As the tailing serving as a main component in solid industrial waste is added into the raw materials, the production resources are saved, the production cost is reduced, the waste is recycled, the physical property of the powder coating can be enhanced, and the toughness and impact resistance of the finished powder coating are well enhanced. The coating has a good heat dissipating effect, and can be widely applied to coating of LED lamps.

Description

A kind of heat radiation coating that contains tailings

Technical field

The present invention relates generally to a kind of powder coating, relates in particular to a kind of heat radiation coating that contains tailings.

Background technology

Heat conduction and heat radiation coating is widely used in computer, notebook computer, LED illumination, communication, rectifier, and medical treatment and industrial equipments etc. has the field of heat radiation requirement, is mainly coated in the surface of scatterer.

The heat radiation coating of producing at present is generally applied to heat radiation and the heat radiation of LED light fixture of the components and parts of the electronic products such as CPU more, medium for brushing is had relatively high expectations, not strong for more coarse, loose body surface sticking power, result of use is undesirable, and the scope of application is less.

Summary of the invention

The object of the invention is just to provide a kind of heat radiation coating that contains tailings.

The present invention is achieved by the following technical solutions:

A heat radiation coating that contains tailings, is characterized in that what it was comprised of the raw material of following weight parts:

Polypropylene 90-97,6-ditertbutylparacresol 0.6-1, vanadium diboride 0.5-1, glucose 1-2, tailings 2-4,2-benzylimidazoline 1-2, sepiolite powder 10-13, antioxidant 1010 0.8-1, Seignette salt 1-2, Vanay 5-7, light calcium carbonate 4-6, compounded mix 10-12;

Described compounded mix is comprised of the raw material of following weight parts:

Agalmatolite 20-30, Zirconium tetrafluoride 2-3, kaolin 30-40, wood charcoal powder 2-3, Sodium tetrafluoroborate 2-3, beta-diketon 0.2-0.4, the different monooctyl ester 3-4 of polyacrylic acid, 2-ethyl-4 Methylimidazole 0.7-1;

Above-mentioned kaolin is calcined to 2-3 hour at 600-700 ℃, after discharging is cooling, become powder with agalmatolite, Zirconium tetrafluoride mixed grinding; Different to above-mentioned wood charcoal powder and polyacrylic acid monooctyl ester is mixed, and dispersed with stirring 3-5 minute at 100-130 ℃, adds powder obtained above, and being stirred to temperature is 60-80 ℃, adds the each raw material of residue, fully ball milling, and granulation, particle diameter is 2-4 μ m, obtains described compounded mix.

A preparation method for the heat radiation coating that contains tailings, comprises the following steps:

Above-mentioned each raw material is mixed, send into twin screw extruder, carry out melting, extrude and granulation, wear into fine powder and cross 100-160 mesh sieve, described in obtaining, contain the heat radiation coating of tailings.

Advantage of the present invention is:

In raw material of the present invention, add the main component tailings of solid industrial waste, the resources of production have been saved, reduced production cost, to waste recycling, but also can increase the physicals of powder coating, make toughness, the shock resistance of powder coating finished product have good raising, coating good heat dissipation effect of the present invention, can be widely used in the application of LED lamp.

Embodiment

Embodiment 1

The heat radiation coating that contains tailings, it is characterized in that it by following weight parts (kilogram) raw material form:

Polypropylene 97,6-ditertbutylparacresol 0.6, vanadium diboride 0.5, glucose 2, tailings 2,2-benzylimidazoline 1, sepiolite powder 13, antioxidant 1010 0.8, Seignette salt 2, Vanay 5, light calcium carbonate 4, compounded mix 10;

Described compounded mix is comprised of the raw material of following weight parts:

Agalmatolite 30, Zirconium tetrafluoride 2, kaolin 40, wood charcoal powder 3, Sodium tetrafluoroborate 3, beta-diketon 0.4, the different monooctyl ester 3 of polyacrylic acid, 2-ethyl-4 Methylimidazole 0.7;

Above-mentioned kaolin is calcined 3 hours at 600 ℃, after discharging is cooling, become powder with agalmatolite, Zirconium tetrafluoride mixed grinding; Different to above-mentioned wood charcoal powder and polyacrylic acid monooctyl ester is mixed, and dispersed with stirring 5 minutes, adds powder obtained above at 130 ℃, and being stirred to temperature is 80 ℃, adds the each raw material of residue, fully ball milling, and granulation, particle diameter is 2 μ m, obtains described compounded mix.

A preparation method for the heat radiation coating that contains tailings, comprises the following steps:

Each raw material is fully mixed, send into twin screw extruder, carry out melting, extrude and granulation, wear into fine powder and cross 160 mesh sieves, described in obtaining, contain the heat radiation coating of tailings.

Performance test:

Appearance of film: smooth smooth, without shrinkage cavity, free of pinholes;

Test is just recoiling: pass through;

Pencil hardness test: 2H is without scuffing;

Bending hardness test: 0T is curved to be passed through.

Claims (2)

1. contain a heat radiation coating for tailings, it is characterized in that what it was comprised of the raw material of following weight parts:

Polypropylene 90-97,6-ditertbutylparacresol 0.6-1, vanadium diboride 0.5-1, glucose 1-2, tailings 2-4,2-benzylimidazoline 1-2, sepiolite powder 10-13, antioxidant 1010 0.8-1, Seignette salt 1-2, Vanay 5-7, light calcium carbonate 4-6, compounded mix 10-12;

Described compounded mix is comprised of the raw material of following weight parts:

Agalmatolite 20-30, Zirconium tetrafluoride 2-3, kaolin 30-40, wood charcoal powder 2-3, Sodium tetrafluoroborate 2-3, beta-diketon 0.2-0.4, the different monooctyl ester 3-4 of polyacrylic acid, 2-ethyl-4 Methylimidazole 0.7-1;

Above-mentioned kaolin is calcined to 2-3 hour at 600-700 ℃, after discharging is cooling, become powder with agalmatolite, Zirconium tetrafluoride mixed grinding; Different to above-mentioned wood charcoal powder and polyacrylic acid monooctyl ester is mixed, and dispersed with stirring 3-5 minute at 100-130 ℃, adds powder obtained above, and being stirred to temperature is 60-80 ℃, adds the each raw material of residue, fully ball milling, and granulation, particle diameter is 2-4 μ m, obtains described compounded mix.

2. a preparation method for the heat radiation coating that contains tailings as claimed in claim 1, is characterized in that comprising the following steps:

Above-mentioned each raw material is mixed, send into twin screw extruder, carry out melting, extrude and granulation, wear into fine powder and cross 100-160 mesh sieve, described in obtaining, contain the heat radiation coating of tailings.