CN105111846A - Polyethylene and epoxy resin compound led radiating coating and preparation method therefor - Google Patents
Polyethylene and epoxy resin compound led radiating coating and preparation method therefor Download PDFInfo
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- CN105111846A CN105111846A CN201510500349.6A CN201510500349A CN105111846A CN 105111846 A CN105111846 A CN 105111846A CN 201510500349 A CN201510500349 A CN 201510500349A CN 105111846 A CN105111846 A CN 105111846A
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Abstract
The invention discloses a polyethylene and epoxy resin compound led radiating coating which is prepared from the following raw materials in parts by weight: 320-400 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 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, 30-42 parts of nano carbon tubes, 2-3 parts of lauryl trimethyl ammonium chloride, 1-2 parts of calcium acetylacetonate, 4-6 parts of polymethyl acrylate, 2-3 parts of diacetone acrylamide and 4-6 parts of magnesium stearate. According to the coating disclosed by the invention, by compounding polyethylene and epoxy resin, the surface strength and weather resistance are further improved and the comprehensive performance is improved while the coating stability is ensured.
Description
Technical field
The present invention relates to heat radiation coating technical field, particularly relate to a kind of polyethylene, epoxy composite 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 polyethylene, epoxy composite led heat radiation coating and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of polyethylene, epoxy composite led heat radiation coating, it is made up of the raw material of following weight parts:
High density polyethylene(HDPE) 320-400, 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, Dodecyl trimethyl ammonium chloride 2-3, calcium acetylacetonate 1-2, polymethyl acrylate 4-6, diacetone-acryloamide(DAA) 2-3, Magnesium Stearate 4-6.
Described polyethylene, a preparation method for epoxy composite led heat radiation coating, comprise 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) 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;
(4) above-mentioned Dodecyl trimethyl ammonium chloride joined in 6-10 times of deionized water, stir, add calcium acetylacetonate, raised temperature is 80-90 DEG C, adds polymethyl acrylate, and insulated and stirred 10-14 minute obtains polyester emulsion;
(5) joined in 3-4 times of dehydrated alcohol by above-mentioned diacetone-acryloamide(DAA), stirring and dissolving, adds Magnesium Stearate, stirs, and obtains alcohol liquid;
(6) in the sodium hydroxide solution of above-mentioned 10-15%, dihydroxyphenyl propane is added, raised temperature is 60-65 DEG C, add frothy gel, polyester emulsion, 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 alcohol liquid, is uniformly mixed to normal temperature, be washed to neutrality, dry;
(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.
The present invention adopts polyethylene, epoxy resin compound, while guarantee is coated with membrane stability, turn improves surface strength and weathering resistance, improves over-all properties.
Embodiment
A kind of polyethylene, epoxy composite led heat radiation coating, it is made up of the raw material of following weight parts:
High density polyethylene(HDPE) 320, 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, Dodecyl trimethyl ammonium chloride 2, calcium acetylacetonate 1, polymethyl acrylate 4, diacetone-acryloamide(DAA) 2, Magnesium Stearate 4.
Described polyethylene, a preparation method for epoxy composite led heat radiation coating, comprise 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) 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;
(4) above-mentioned Dodecyl trimethyl ammonium chloride joined in 6 times of deionized waters, stir, add calcium acetylacetonate, raised temperature is 80 DEG C, adds polymethyl acrylate, and insulated and stirred 10 minutes, obtains polyester emulsion;
(5) joined in 3 times of dehydrated alcohols by above-mentioned diacetone-acryloamide(DAA), stirring and dissolving, adds Magnesium Stearate, stirs, and obtains alcohol liquid;
(6) in the sodium hydroxide solution of above-mentioned 10%, dihydroxyphenyl propane is added, raised temperature is 60 DEG C, add frothy gel, polyester emulsion, ultrasonic stirring process 30 minutes, adds epoxy chloropropane, raised temperature is 80 DEG C, insulated and stirred 3 hours, adds above-mentioned alcohol liquid, is uniformly mixed to normal temperature, be washed to neutrality, dry;
(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 34kgcm;
Sticking power and resistance to Neutral Salt Spray Corrosion grade are 2 grades;
Thermal conductivity is 0.522W/mK.
Claims (2)
1. polyethylene, an epoxy composite led heat radiation coating, is characterized in that what it was made up of the raw material of following weight parts:
High density polyethylene(HDPE) 320-400, 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, Dodecyl trimethyl ammonium chloride 2-3, calcium acetylacetonate 1-2, polymethyl acrylate 4-6, diacetone-acryloamide(DAA) 2-3, Magnesium Stearate 4-6.
2. a preparation method for polyethylene as claimed in claim 1, epoxy composite led heat radiation coating, 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) 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;
(4) above-mentioned Dodecyl trimethyl ammonium chloride joined in 6-10 times of deionized water, stir, add calcium acetylacetonate, raised temperature is 80-90 DEG C, adds polymethyl acrylate, and insulated and stirred 10-14 minute obtains polyester emulsion;
(5) joined in 3-4 times of dehydrated alcohol by above-mentioned diacetone-acryloamide(DAA), stirring and dissolving, adds Magnesium Stearate, stirs, and obtains alcohol liquid;
(6) in the sodium hydroxide solution of above-mentioned 10-15%, dihydroxyphenyl propane is added, raised temperature is 60-65 DEG C, add frothy gel, polyester emulsion, 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 alcohol liquid, is uniformly mixed to normal temperature, be washed to neutrality, dry;
(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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510500349.6A CN105111846A (en) | 2015-08-14 | 2015-08-14 | Polyethylene and epoxy resin compound led radiating coating and preparation method therefor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510500349.6A CN105111846A (en) | 2015-08-14 | 2015-08-14 | Polyethylene and epoxy resin compound led radiating coating and preparation method therefor |
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| CN201510500349.6A Pending CN105111846A (en) | 2015-08-14 | 2015-08-14 | Polyethylene and epoxy resin compound led radiating coating and preparation method therefor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105778582A (en) * | 2016-03-21 | 2016-07-20 | 苏州市湘园特种精细化工有限公司 | High-heat-conductivity heat-radiating nano composite coating |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974273A (en) * | 2010-10-09 | 2011-02-16 | 广州市枫源化工有限公司 | Exterior wall coating and preparation method thereof |
| CN103509447A (en) * | 2013-09-04 | 2014-01-15 | 安徽祈艾特电子科技有限公司 | Decorative metal powder paint |
| CN103756427A (en) * | 2014-01-15 | 2014-04-30 | 芜湖市宝艺游乐科技设备有限公司 | Heat radiating coating for lamp tube |
| 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 |
-
2015
- 2015-08-14 CN CN201510500349.6A patent/CN105111846A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974273A (en) * | 2010-10-09 | 2011-02-16 | 广州市枫源化工有限公司 | Exterior wall coating and preparation method thereof |
| CN103509447A (en) * | 2013-09-04 | 2014-01-15 | 安徽祈艾特电子科技有限公司 | Decorative metal powder paint |
| CN103756427A (en) * | 2014-01-15 | 2014-04-30 | 芜湖市宝艺游乐科技设备有限公司 | Heat radiating coating for lamp tube |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105778582A (en) * | 2016-03-21 | 2016-07-20 | 苏州市湘园特种精细化工有限公司 | High-heat-conductivity heat-radiating nano composite coating |
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Application publication date: 20151202 |