CN105111848A - Epoxy cured led radiating coating and preparation method therefor - Google Patents
Epoxy cured led radiating coating and preparation method therefor Download PDFInfo
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- CN105111848A CN105111848A CN201510500357.0A CN201510500357A CN105111848A CN 105111848 A CN105111848 A CN 105111848A CN 201510500357 A CN201510500357 A CN 201510500357A CN 105111848 A CN105111848 A CN 105111848A
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Abstract
The invention discloses an epoxy cured led radiating coating which is prepared from the following raw materials in parts by weight: 2-3 parts of carboxymethylcellulose, 0.6-1 part of trimethoxy silane, 360-400 parts of high density polyethylene, 100-130 parts of sodium hydroxide, 400-420 parts of bisphenol A, 160-180 parts of epoxy chloropropane, 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 bisacrylamide, 3-4 parts of ammonium persulfate, 0.01-0.02 part of TritonX114, 1.8-2 parts of ammonia water, 10-20 parts of diethylenetriamine, 3-4 parts of barium metaborate, 30-42 parts of nano carbon tubes, 0.1-0.2 part of zinc isoocatanoate, 4-7 parts of polyamide wax micropowder, 3-5 parts of calcium fluoride, 3-4 parts of dipropylene glycol and 2-3 parts of sebacic acid. According to the coating disclosed by the invention, the nano carbon tubes are well dispersed in epoxy resin to form effectively radiating channels in the epoxy resin, so that the coating has a good radiating property.
Description
Technical field
The present invention relates to heat radiation coating technical field, particularly relate to a kind of curable epoxide 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 curable epoxide led heat radiation coating and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of curable epoxide led heat radiation coating, it is made up of the raw material of following weight parts:
Carboxymethyl cellulose 2-3, Trimethoxy silane 0.6-1, 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, barium metaborate 3-4, CNT (carbon nano-tube) 30-42, isocaprylic acid zinc 0.1-0.2, polyamide wax micropowder 4-7, Calcium Fluoride (Fluorspan) 3-dipropylene glycol 3-4, SA 2-3.
A preparation method for described curable epoxide 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 carboxymethyl cellulose is joined in 16-20 times of water, stir, add dipropylene glycol, SA, raised temperature is 60-75 DEG C, drip the vitriol oil of 95-98%, adjustment PH is 1-2, adds the 10-15% of isocaprylic acid zinc, above-specified high density polyethylene weight, insulation reaction 2-3 hour at the temperature disclosed above, cooling, dehydration, dries, obtains premix polyethylene;
(4) by above-mentioned barium metaborate, Calcium Fluoride (Fluorspan), polyamide wax micropowder mixing, insulated and stirred 7-10 minute at 80-90 DEG C, mixes with above-mentioned premix polyethylene, adds Trimethoxy silane, and 700-1000 rev/min is stirred 20-30 minute, obtain modified poly ethylene;
(5) 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;
(6) in the sodium hydroxide solution of above-mentioned 10-15%, dihydroxyphenyl propane is added, raised temperature is 60-65 DEG C, adds frothy gel, ultrasonic stirring process 30-40 minute, add epoxy chloropropane, raised temperature is 80-85 DEG C, insulated and stirred 3-4 hour, adds above-mentioned modified poly ethylene, send in the oil bath of 130-136 DEG C, insulated and stirred 10-15 minute, discharging cooling after washing, to neutral, is dried;
(7) 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.
CNT (carbon nano-tube) is well scattered between epoxy resin by the present invention, can form effective heat dissipation channel in the epoxy, have good heat dispersion.
Embodiment
A kind of curable epoxide led heat radiation coating, it is made up of the raw material of following weight parts:
Carboxymethyl cellulose 2, Trimethoxy silane 0.6, 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, barium metaborate 3, CNT (carbon nano-tube) 30, isocaprylic acid zinc 0.1, polyamide wax micropowder 4, Calcium Fluoride (Fluorspan) 3 dipropylene glycol 3, SA 2.
A preparation method for described curable epoxide 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 carboxymethyl cellulose is joined in 16 times of water, stir, add dipropylene glycol, SA, raised temperature is 60 DEG C, drip the vitriol oil of 95%, regulate PH be 1, add isocaprylic acid zinc, above-specified high density polyethylene weight 10%, insulation reaction 2 hours at the temperature disclosed above, cooling, dehydration, dries, obtains premix polyethylene;
(4) by above-mentioned barium metaborate, Calcium Fluoride (Fluorspan), polyamide wax micropowder mixing, insulated and stirred 7 minutes at 80 DEG C, mixes with above-mentioned premix polyethylene, adds Trimethoxy silane, and 700 revs/min are stirred 20 minutes, obtain modified poly ethylene;
(5) 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;
(6) in the sodium hydroxide solution of above-mentioned 10%, dihydroxyphenyl propane is added, raised temperature is 60 DEG C, adds frothy gel, ultrasonic stirring process 30 minutes, add epoxy chloropropane, raised temperature is 80 DEG C, and insulated and stirred 3 hours, adds above-mentioned modified poly ethylene, send in the oil bath of 130 DEG C, insulated and stirred 10 minutes, discharging cooling after washing, to neutral, is dried;
(7) 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 28kgcm;
Sticking power and resistance to Neutral Salt Spray Corrosion grade are 2 grades;
Thermal conductivity is 0.513W/mK.
Claims (2)
1. a curable epoxide led heat radiation coating, is characterized in that what it was made up of the raw material of following weight parts:
Carboxymethyl cellulose 2-3, Trimethoxy silane 0.6-1, 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, barium metaborate 3-4, CNT (carbon nano-tube) 30-42, isocaprylic acid zinc 0.1-0.2, polyamide wax micropowder 4-7, Calcium Fluoride (Fluorspan) 3-5, dipropylene glycol 3-4, SA 2-3.
2. a preparation method for curable epoxide 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 carboxymethyl cellulose is joined in 16-20 times of water, stir, add dipropylene glycol, SA, raised temperature is 60-75 DEG C, drip the vitriol oil of 95-98%, adjustment PH is 1-2, adds the 10-15% of isocaprylic acid zinc, above-specified high density polyethylene weight, insulation reaction 2-3 hour at the temperature disclosed above, cooling, dehydration, dries, obtains premix polyethylene;
(4) by above-mentioned barium metaborate, Calcium Fluoride (Fluorspan), polyamide wax micropowder mixing, insulated and stirred 7-10 minute at 80-90 DEG C, mixes with above-mentioned premix polyethylene, adds Trimethoxy silane, and 700-1000 rev/min is stirred 20-30 minute, obtain modified poly ethylene;
(5) 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;
(6) in the sodium hydroxide solution of above-mentioned 10-15%, dihydroxyphenyl propane is added, raised temperature is 60-65 DEG C, adds frothy gel, ultrasonic stirring process 30-40 minute, add epoxy chloropropane, raised temperature is 80-85 DEG C, insulated and stirred 3-4 hour, adds above-mentioned modified poly ethylene, send in the oil bath of 130-136 DEG C, insulated and stirred 10-15 minute, discharging cooling after washing, to neutral, is dried;
(7) 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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| Application Number | Priority Date | Filing Date | Title |
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| CN201510500357.0A CN105111848A (en) | 2015-08-14 | 2015-08-14 | Epoxy cured led radiating coating and preparation method therefor |
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| CN201510500357.0A CN105111848A (en) | 2015-08-14 | 2015-08-14 | Epoxy cured led radiating coating and preparation method therefor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107880713A (en) * | 2017-11-13 | 2018-04-06 | 常州杰轩纺织科技有限公司 | A kind of preparation method of epoxy coating |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103614038A (en) * | 2013-10-28 | 2014-03-05 | 蚌埠市高华电子有限公司 | Environmentally-friendly composite waterproof coating |
| CN103756436A (en) * | 2014-01-15 | 2014-04-30 | 芜湖市宝艺游乐科技设备有限公司 | High self-cleaning powder coating |
| CN103952037A (en) * | 2014-03-25 | 2014-07-30 | 安徽柏拉图涂层织物有限公司 | Antistatic coating material |
| 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 |
| CN104650722A (en) * | 2015-02-02 | 2015-05-27 | 安徽枞阳县渡江充气设备制造有限公司 | Waterproof coating with good flexible permeability and preparation method thereof |
-
2015
- 2015-08-14 CN CN201510500357.0A patent/CN105111848A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103614038A (en) * | 2013-10-28 | 2014-03-05 | 蚌埠市高华电子有限公司 | Environmentally-friendly composite waterproof coating |
| CN103756436A (en) * | 2014-01-15 | 2014-04-30 | 芜湖市宝艺游乐科技设备有限公司 | High self-cleaning powder coating |
| CN103952037A (en) * | 2014-03-25 | 2014-07-30 | 安徽柏拉图涂层织物有限公司 | Antistatic coating material |
| 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 |
| CN104650722A (en) * | 2015-02-02 | 2015-05-27 | 安徽枞阳县渡江充气设备制造有限公司 | Waterproof coating with good flexible permeability and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107880713A (en) * | 2017-11-13 | 2018-04-06 | 常州杰轩纺织科技有限公司 | A kind of preparation method of epoxy coating |
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Application publication date: 20151202 |