CN103773128A - Multi-fiber heat conduction type powder coating - Google Patents

Abstract

The invention discloses a multi-fiber heat conduction type powder coating which is prepared from the following raw materials in parts by weight: 100-110 parts of high-density polyethylene, 1-2 parts of dodecyl dimethyl benzyl ammonium oxidation, 1-2 parts of guanidine sulfamate, 6-8 parts of T800 carbon fiber, 2-3 parts of acetate fiber, 2-4 parts of glass fiber, 1-2 parts of bamboo fiber, 2-3 parts of 2,2,4-trimethyl-1,3-pentanediolmono(2-methylpropanoate), 5-7 parts of dioctyl phthalate, 3-5 parts of oxidized polyethylene wax, 1-2 parts of trimethylolpropane and 12-16 parts of modified filling agent. As the fiber raw materials such as carbon fiber in the powder coating disclosed by the invention are good in heat conduction effect, the heat radiation property of the powder coating is improved.

Description

A kind of multifilament heat-conducting type powder coating

Technical field

The present invention relates generally to a kind of powder coating, relates in particular to a kind of multifilament heat-conducting type powder coating.

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 multifilament heat-conducting type powder coating.

The present invention is achieved by the following technical solutions:

A kind of multifilament heat-conducting type powder coating, it is made up of the raw material of following weight parts:

High density polyethylene(HDPE) 100-110, dodecyl dimethyl benzyl ammonium oxide 1-2, Guanidine Sulfamate 99 1-2, T800 carbon fiber 6-8, cellulose acetate 2-3, glass fibre 2-4, bamboo fibers 1-2, alcohol ester 12 film coalescence aid 2-3, dioctyl phthalate (DOP) 5-7, oxidized polyethlene wax 3-5, TriMethylolPropane(TMP) 1-2, modified filler 12-16;

Described modified filler is made up of the raw material of following weight parts:

Agalmatolite 35-45, bone black 5-7, aluminium dihydrogen phosphate 2-3, light calcium carbonate 2-4, octyl group isothiazolinone 0.8-1, butyl polyacrylate 1-2, silane coupling agent KH560 0.4-1;

Above-mentioned agalmatolite is calcined to 1-2 hour at 500-600 ℃, after discharging is cooling, mixes and grind into powder with light calcium carbonate, obtain Preblend; By above-mentioned bone black, aluminium dihydrogen phosphate mixing and ball milling, add butyl polyacrylate, insulated and stirred 10-13 minute at 60-80 ℃, mix with above-mentioned Preblend, add the each raw material of residue, 1000-1400 rev/min of dispersed with stirring 5-7 minute, dry, obtain described modified filler.

A preparation method for multifilament heat-conducting type powder coating, comprises the following steps:

Above-mentioned T800 carbon fiber, cellulose acetate, glass fibre, bamboo fibers are mixed, add TriMethylolPropane(TMP), at 45-50 ℃, insulated and stirred 4-10 minute, adds oxidized polyethlene wax, 300-400 rev/min of dispersed with stirring 6-10 minute, add the each raw material of residue, stir, send into twin screw extruder, carry out melting, extrude and granulation, wear into fine powder and cross 100-120 mesh sieve, obtaining described multifilament heat-conducting type powder coating.

Advantage of the present invention is:

The fibrous materials such as the carbon fiber containing in powder coating of the present invention have good heat-conducting effect, have strengthened the heat dispersion of this powder coating.

Embodiment

Embodiment 1

A kind of multifilament heat-conducting type powder coating, it is characterized in that it by following weight parts (kilogram) raw material form:

High density polyethylene(HDPE) 110, dodecyl dimethyl benzyl ammonium oxide 2, Guanidine Sulfamate 99 1, T800 carbon fiber 6, cellulose acetate 3, glass fibre 4, bamboo fibers 1, alcohol ester 12 film coalescence aid 2, dioctyl phthalate (DOP) 5, oxidized polyethlene wax 5, TriMethylolPropane(TMP) 1, modified filler 16;

Described modified filler is made up of the raw material of following weight parts:

Agalmatolite 45, bone black 7, aluminium dihydrogen phosphate 2, light calcium carbonate 2, octyl group isothiazolinone 0.8, butyl polyacrylate 1, silane coupling agent KH560 0.4;

Above-mentioned agalmatolite is calcined 2 hours at 600 ℃, after discharging is cooling, is mixed and grind into powder with light calcium carbonate, obtain Preblend; By above-mentioned bone black, aluminium dihydrogen phosphate mixing and ball milling, add butyl polyacrylate, insulated and stirred 13 minutes at 80 ℃, mixes with above-mentioned Preblend, adds the each raw material of residue, and 1400 revs/min of dispersed with stirring 5 minutes, dry, and obtain described modified filler.

A preparation method for multifilament heat-conducting type powder coating, comprises the following steps:

Above-mentioned T800 carbon fiber, cellulose acetate, glass fibre, bamboo fibers are mixed, add TriMethylolPropane(TMP), at 50 ℃, insulated and stirred 10 minutes, adds oxidized polyethlene wax, 400 revs/min of dispersed with stirring 10 minutes, add the each raw material of residue, stir, send into twin screw extruder, carry out melting, extrude and granulation, wear into fine powder and cross 120 mesh sieves, obtaining described multifilament heat-conducting type powder coating.

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.

Claims (2)

1. a multifilament heat-conducting type powder coating, is characterized in that what it was made up of the raw material of following weight parts:

High density polyethylene(HDPE) 100-110, dodecyl dimethyl benzyl ammonium oxide 1-2, Guanidine Sulfamate 99 1-2, T800 carbon fiber 6-8, cellulose acetate 2-3, glass fibre 2-4, bamboo fibers 1-2, alcohol ester 12 film coalescence aid 2-3, dioctyl phthalate (DOP) 5-7, oxidized polyethlene wax 3-5, TriMethylolPropane(TMP) 1-2, modified filler 12-16;

Described modified filler is made up of the raw material of following weight parts:

Agalmatolite 35-45, bone black 5-7, aluminium dihydrogen phosphate 2-3, light calcium carbonate 2-4, octyl group isothiazolinone 0.8-1, butyl polyacrylate 1-2, silane coupling agent KH560 0.4-1;

Above-mentioned agalmatolite is calcined to 1-2 hour at 500-600 ℃, after discharging is cooling, mixes and grind into powder with light calcium carbonate, obtain Preblend; By above-mentioned bone black, aluminium dihydrogen phosphate mixing and ball milling, add butyl polyacrylate, insulated and stirred 10-13 minute at 60-80 ℃, mix with above-mentioned Preblend, add the each raw material of residue, 1000-1400 rev/min of dispersed with stirring 5-7 minute, dry, obtain described modified filler.

2. a preparation method for multifilament heat-conducting type powder coating as claimed in claim 1, is characterized in that comprising the following steps:

Above-mentioned T800 carbon fiber, cellulose acetate, glass fibre, bamboo fibers are mixed, add TriMethylolPropane(TMP), at 45-50 ℃, insulated and stirred 4-10 minute, adds oxidized polyethlene wax, 300-400 rev/min of dispersed with stirring 6-10 minute, add the each raw material of residue, stir, send into twin screw extruder, carry out melting, extrude and granulation, wear into fine powder and cross 100-120 mesh sieve, obtaining described multifilament heat-conducting type powder coating.