CN105131736A - Decorative LED heat dissipation coating and preparation method therefor - Google Patents
Decorative LED heat dissipation coating and preparation method therefor Download PDFInfo
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- CN105131736A CN105131736A CN201510533189.5A CN201510533189A CN105131736A CN 105131736 A CN105131736 A CN 105131736A CN 201510533189 A CN201510533189 A CN 201510533189A CN 105131736 A CN105131736 A CN 105131736A
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Abstract
The invention discloses a decorative LED heat dissipation coating and a preparation method therefor. The decorative LED heat dissipation coating comprises the following raw materials in parts by weight: 10-13 parts of villi powder, 2.4-3 parts of coconut acid diethanolamide, 360-400 parts of high-density polyethylene, 100-130 parts of sodium hydroxide, 400-420 parts of bisphenol A, 160-180 parts of epichlorohydrin, 10-12 parts of silicon nitride, 2-3 parts of acrylamide, 1-1.6 parts of ammonium chloride, 0.05-0.1 part of N, N-methylene-bis-acrylamide, 3-4 parts of ammonium persulfate, 0.01-0.02 part of Triton X 114, 1.8-2 parts of ammonia water, 10-20 parts of diethylene triamine, 30-42 parts of carbon nanotubes, 2-3 parts of dodecyl mercaptan, 3-4 parts of alkenyl succinic acid esters, 1-2 parts of sodium fluoride, 4-5 parts of polyethyleneimine, 3-4 parts of calcium stearate and 17-21 parts of titanium dioxide. The villi powder is added into the decorative LED heat dissipation coating disclosed by the invention, so that the texture of a coating is improved, and the coating has a scrub feeling, and the decorative property is improved.
Description
Technical field
The present invention relates to heat radiation coating technical field, particularly relate to a kind of ornamental led heat radiation coating and preparation method thereof.
Background technology
Epoxy resin is one of very important thermoset macromolecule material, has cohesive strength high, and electrical insulation capability is good, the advantages such as shrinking percentage is low, good processability, is widely used in each fields such as electronics, machinery, building;
CNT (carbon nano-tube) has higher thermal conductivity, therefore CNT (carbon nano-tube) is filled in epoxy resin as packing material and has good application prospect as a kind of heat sink material, but due to the nano effect of CNT (carbon nano-tube), CNT (carbon nano-tube) is more difficult dispersion in the epoxy.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of ornamental led heat radiation coating and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of ornamental led heat radiation coating, it is made up of the raw material of following weight parts:
Fine hair powder 10-13, lauric acid amide of ethanol 2.4-3, high density polyethylene(HDPE) 360-400, sodium hydroxide 100-130, dihydroxyphenyl propane 400-420, epoxy chloropropane 160-180, silicon nitride 10-12, acrylamide 2-3, ammonium chloride 1-1.6, N,N methylene bis acrylamide 0.05-0.1, ammonium persulphate 3-4, TritonX1140.01-0.02, ammoniacal liquor 1.8-2, diethylenetriamine 10-20, CNT (carbon nano-tube) 30-42, lauryl mercaptan 2-3, alkenyl succinic acid ester 3-4, Sodium Silicofluoride 1-2, polymine 4-5, calcium stearate 3-4, titanium dioxide 17-21.
A preparation method for described ornamental led heat radiation coating, comprises the following steps:
(1) above-mentioned sodium hydroxide is added water, be mixed with the sodium hydroxide solution of 10-15%;
(2) by CNT (carbon nano-tube), silicon nitride, ammonium chloride mixing, ball milling is even;
(3) above-mentioned Sodium Silicofluoride is joined in 15-20 times of deionized water, add polymine after stirring, stirring and dissolving, obtain lysate;
(4) joined by lauric acid amide of ethanol in 26-30 times of water, stir, add alkenyl succinic acid ester, lauryl mercaptan, 100-200 rev/min is stirred 7-10 minute, obtains alcohol ester emulsion;
(5) joined in alcohol ester emulsion by above-mentioned fine hair powder, stir, add above-mentioned lysate, calcium stearate, send in the water-bath of 70-80 DEG C, insulated and stirred 1-2 hour, obtains modification fine hair powder;
(6) by aforesaid propylene acid amides, N,N methylene bis acrylamide, TritonX114 mixing, join in 40-50 times of water, stir, add above-mentioned ball milling material, 1400-1500 rev/min of dispersed with stirring 1-2 minute, add ammonium persulphate, ammoniacal liquor, leave standstill 3-4 hour, obtain frothy gel;
(7) in the sodium hydroxide solution of above-mentioned 10-15%, dihydroxyphenyl propane is added, raised temperature is 60-65 DEG C, add frothy gel, ultrasonic stirring process 30-40 minute, adds epoxy chloropropane, raised temperature is 80-85 DEG C, insulated and stirred 3-4 hour, adds above-mentioned modification fine hair powder, and 100-200 rev/min is stirred 18-20 minute, be washed to neutrality, dry;
(8) material after above-mentioned oven dry is mixed with diethylenetriamine, stir 3-5 minute, add each raw material of residue, stir, be sent in twin screw extruder and melt extrude, pulverize and sieve after cooling, obtain described heat radiation coating.
Advantage of the present invention is:
(1) powder coating of the present invention has good resistance to impact shock:
Carbon nanotube has larger surfactivity, with macromolecular chain generation physics or chemically combined chance many, increase with substrate contact area, carbon nanotube forms the reactive force much larger than Van der Waals force with epoxide group on interface, form desirable interface, be conducive to the Stress transmit between CNT (carbon nano-tube) and epoxy resin, improve the ability bearing load, when matrix material is subject to foreign impacts power, epoxy resin can pass to carbon nanotube and silicon nitride surging force, make carbon nanotube, silicon nitride absorbs more energy, thus matrix material can be made to bear higher impact force,
(2) powder coating of the present invention has very high sticking power:
The string stress making to produce in curing of coating process that adds of carbon nanotube, silicon nitride reduces, thus the sticking power of film is improved;
(3) powder coating of the present invention has good salt spray resistance:
Carbon nanotube, silicon nitride have good dispersiveness in the epoxy, and the carbon nanotube of these good distribution, silicon nitride can play the effect of extra physical crosslinking point, and the compactness of the powder coating film obtained is improved, and salt spray resistance also increases thereupon;
(4) powder coating of the present invention has good thermal diffusivity:
Silicon nitride has very low specific inductivity, good chemical stability and heat-shock resistance, inherently there is good heat conductivility, and the material after curing molding formed a kind of with the network structure of polyacrylamide be skeleton, foam and particle stabilized to exist wherein, there is some strength and flexible porous body, stable heat dissipation channel is formed between these stable hole CNT (carbon nano-tube), be conducive to distributing of heat, greatly improve thermal conductivity.
Present invention adds fine hair powder, the texture of film coated surface can be improved, make film have the sensation of frosted, improve ornamental.
Embodiment
A kind of ornamental led heat radiation coating, it is made up of the raw material of following weight parts:
Fine hair powder 10, lauric acid amide of ethanol 2.4, high density polyethylene(HDPE) 360, sodium hydroxide 100, dihydroxyphenyl propane 400, epoxy chloropropane 160, silicon nitride 10, acrylamide 2, ammonium chloride 1, N, N methylene-bisacrylamide 0.05, ammonium persulphate 3, TritonX1140.01, ammoniacal liquor 1.8, diethylenetriamine 10, CNT (carbon nano-tube) 30, lauryl mercaptan 2, alkenyl succinic acid ester 3, Sodium Silicofluoride 1, polymine 4, calcium stearate 3, titanium dioxide 17.
A preparation method for described ornamental led heat radiation coating, comprises the following steps:
(1) above-mentioned sodium hydroxide is added water, be mixed with the sodium hydroxide solution of 10%;
(2) by CNT (carbon nano-tube), silicon nitride, ammonium chloride mixing, ball milling is even;
(3) above-mentioned Sodium Silicofluoride is joined in 15 times of deionized waters, add polymine after stirring, stirring and dissolving, obtain lysate;
(4) joined by lauric acid amide of ethanol in 26 times of water, stir, add alkenyl succinic acid ester, lauryl mercaptan, 100 revs/min are stirred 7 minutes, obtain alcohol ester emulsion;
(5) joined in alcohol ester emulsion by above-mentioned fine hair powder, stir, add above-mentioned lysate, calcium stearate, send in the water-bath of 70 DEG C, insulated and stirred 1 hour, obtains modification fine hair powder;
(6) by aforesaid propylene acid amides, N, N methylene-bisacrylamide, TritonX114 mixing, join in 40 times of water, stir, add above-mentioned ball milling material, 1400 revs/min of dispersed with stirring 1 minute, add ammonium persulphate, ammoniacal liquor, leave standstill 3 hours, obtain frothy gel;
(7) in the sodium hydroxide solution of above-mentioned 10%, dihydroxyphenyl propane is added, raised temperature is 60 DEG C, add frothy gel, ultrasonic stirring process 30 minutes, adds epoxy chloropropane, raised temperature is 80 DEG C, insulated and stirred 3 hours, adds above-mentioned modification fine hair powder, and 100 revs/min are stirred 18 minutes, be washed to neutrality, dry;
(8) material after above-mentioned oven dry is mixed with diethylenetriamine, stir 3 minutes, add each raw material of residue, stir, be sent in twin screw extruder and melt extrude, pulverize and sieve after cooling, obtain described heat radiation coating.
Performance test:
Impact resistance is 32kgcm;
Sticking power and resistance to Neutral Salt Spray Corrosion grade are 2 grades;
Thermal conductivity is 0.513W/mK.
Claims (2)
1. an ornamental led heat radiation coating, is characterized in that what it was made up of the raw material of following weight parts:
Fine hair powder 10-13, lauric acid amide of ethanol 2.4-3, high density polyethylene(HDPE) 360-400, sodium hydroxide 100-130, dihydroxyphenyl propane 400-420, epoxy chloropropane 160-180, silicon nitride 10-12, acrylamide 2-3, ammonium chloride 1-1.6, N,N methylene bis acrylamide 0.05-0.1, ammonium persulphate 3-4, TritonX1140.01-0.02, ammoniacal liquor 1.8-2, diethylenetriamine 10-20, CNT (carbon nano-tube) 30-42, lauryl mercaptan 2-3, alkenyl succinic acid ester 3-4, Sodium Silicofluoride 1-2, polymine 4-5, calcium stearate 3-4, titanium dioxide 17-21.
2. a preparation method for ornamental led heat radiation coating as claimed in claim 1, is characterized in that comprising the following steps:
(1) above-mentioned sodium hydroxide is added water, be mixed with the sodium hydroxide solution of 10-15%;
(2) by CNT (carbon nano-tube), silicon nitride, ammonium chloride mixing, ball milling is even;
(3) above-mentioned Sodium Silicofluoride is joined in 15-20 times of deionized water, add polymine after stirring, stirring and dissolving, obtain lysate;
(4) joined by lauric acid amide of ethanol in 26-30 times of water, stir, add alkenyl succinic acid ester, lauryl mercaptan, 100-200 rev/min is stirred 7-10 minute, obtains alcohol ester emulsion;
(5) joined in alcohol ester emulsion by above-mentioned fine hair powder, stir, add above-mentioned lysate, calcium stearate, send in the water-bath of 70-80 DEG C, insulated and stirred 1-2 hour, obtains modification fine hair powder;
(6) by aforesaid propylene acid amides, N,N methylene bis acrylamide, TritonX114 mixing, join in 40-50 times of water, stir, add above-mentioned ball milling material, 1400-1500 rev/min of dispersed with stirring 1-2 minute, add ammonium persulphate, ammoniacal liquor, leave standstill 3-4 hour, obtain frothy gel;
(7) in the sodium hydroxide solution of above-mentioned 10-15%, dihydroxyphenyl propane is added, raised temperature is 60-65 DEG C, add frothy gel, ultrasonic stirring process 30-40 minute, adds epoxy chloropropane, raised temperature is 80-85 DEG C, insulated and stirred 3-4 hour, adds above-mentioned modification fine hair powder, and 100-200 rev/min is stirred 18-20 minute, be washed to neutrality, dry;
(8) material after above-mentioned oven dry is mixed with diethylenetriamine, stir 3-5 minute, add each raw material of residue, stir, be sent in twin screw extruder and melt extrude, pulverize and sieve after cooling, obtain described heat radiation coating.
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102807801A (en) * | 2011-06-29 | 2012-12-05 | 深圳光启高等理工研究院 | Anti-radar coating and preparation method thereof |
CN103965671A (en) * | 2014-05-19 | 2014-08-06 | 宁波市爱使电器有限公司 | Coating for cooling surface of light-emitting diode (LED) radiator |
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- 2015-08-27 CN CN201510533189.5A patent/CN105131736A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102807801A (en) * | 2011-06-29 | 2012-12-05 | 深圳光启高等理工研究院 | Anti-radar coating and preparation method thereof |
CN103965671A (en) * | 2014-05-19 | 2014-08-06 | 宁波市爱使电器有限公司 | Coating for cooling surface of light-emitting diode (LED) radiator |
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