CN105111840A - Polyethylene and polystyrene compound radiating coating and preparation method therefor - Google Patents
Polyethylene and polystyrene compound radiating coating and preparation method therefor Download PDFInfo
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- CN105111840A CN105111840A CN201510496835.5A CN201510496835A CN105111840A CN 105111840 A CN105111840 A CN 105111840A CN 201510496835 A CN201510496835 A CN 201510496835A CN 105111840 A CN105111840 A CN 105111840A
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Abstract
The invention discloses a polyethylene and polystyrene compound radiating coating which is prepared from the following raw materials in parts by weight: 10-17 parts of brominated polystyrene, 12-15 parts of a styrene-maleic anhydride copolymer, 6-10 parts of propynol, 90-100 parts of copolymer, 4-7 parts of graphene, 16-20 parts of nano silicon dioxide, 0.2-0.3 part of a saline coupling agent KH560, 700-800 parts of dimethylformamide, 4-5 parts of sodium nitride, 0.04-0.05 part of aluminum trichloride, 1.6-2 parts of a 2-3% sodium ascorbate solution, 1.8-2 parts of a 2-3% copper sulfate solution, 120-130 parts of high density polyethylene, 1-2 parts of diacetone alcohol, 1-2 parts of glycerol triglycerate, 0.6-1 part of diacetone-acryloamide, 0.3-1 part of sp80, 2-4 parts of calcium fluoride and 1-2 parts of magnesium fluoride. The coating disclosed by the invention is blended by polyethylene and polystyrene, so that the surface strength and toughness of the coating are effectively improved and the weather resistance and the antiaging property are improved.
Description
Technical field
The present invention relates to heat radiation coating technical field, particularly relate to a kind of polyethylene, polystyrene composite radiating coating and preparation method thereof.
Background technology
Along with the fast development of modern science and technology, intensive and the miniaturization of the high frequency of electron device, high speed and unicircuit, the overall power density of unit volume electron device and thermal value are increased by a wide margin, thus makes the cooling problem of electron device become more and more outstanding.And the cooling power that the cooling system of routine can reach is subject to great challenge, especially in fields such as the energy, automobile, air-conditioning, agricultural, chemical industry, heating, aerospace, microelectronics, information, the technology such as enhancement of heat transfer, raising radiating efficiency are had higher requirement.And heat radiation coating is a kind of body surface radiating efficiency that improves, reduce the speciality coating of system temperature, heat radiation coating is coated with the radiating efficiency that can improve electron device on the electronic devices;
Nano silicon is because having in tridimensional network, and stability, reinforcing and thickening property is superior, low price, the feature such as easily to produce, is widely used in corrosion protection coating, to improve carrying and the antiseptic power of coating.The specific surface area of nano silicon is large, and specific surface energy is high, and easily occur in the coating reunite and form offspring, cause the performance of activeness and quietness to reduce, the hydroxyl on its surface also enhances this kind of phenomenon simultaneously.Therefore, improving the dispersiveness of nanosized SiO_2 in organic coating is problem demanding prompt solution.
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, polystyrene composite radiating coating and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of polyethylene, polystyrene composite radiating coating, it is made up of the raw material of following weight parts:
Brominated Polystyrene 10-17, styrene-maleic anhydride copolymer 12-15, propiolic alcohol 6-10, tetrahydrofuran (THF) 90-100, Graphene 4-7, nano silicon 16-20, silane coupling agent KH5600.2-0.3, dimethyl formamide 700-800, sodium nitride 4-5, aluminum chloride 0.04-0.05, 2-3% sodium ascorbate solution 1.6-2, 2-3% copper-bath 1.8-2, high density polyethylene(HDPE) 120-130, diacetone alcohol 1-2, glycerol glycerinate 1-2, diacetone-acryloamide(DAA) 0.6-1, sp800.3-1, Calcium Fluoride (Fluorspan) 2-4, magnesium fluoride 1-2.
Described polyethylene, a preparation method for polystyrene heat radiation coating, comprise the following steps:
(1) by above-mentioned Calcium Fluoride (Fluorspan), magnesium fluoride mixing, join in 10-12 times of deionized water, be heated to 70-80 DEG C, add diacetone-acryloamide(DAA), styrene-maleic anhydride copolymer, insulated and stirred 20-30 minute, cooling, dehydration, vacuum-drying, obtains modified copolymer;
(2) by above-mentioned multipolymer, propiolic alcohol, tetrahydrofuran (THF) mixing, insulated and stirred 10-16 hour at 50-60 DEG C, underpressure distillation, removing liquid, vacuum-drying, obtains alkynyl multipolymer;
(3) by Graphene, nano silicon mixing, ball milling 30-40 minute;
(4) get above-mentioned ball milling particle, join in 20-30 toluene doubly, ultrasonic disperse 2-3 hour, adds silane coupling agent KH560, and raised temperature is 86-90 DEG C, insulated and stirred 10-12 hour, cooling, suction filtration, and vacuum-drying, obtains silanization nanoparticle;
(5) get the 46-50% of above-mentioned dimethyl formamide weight, add silanization nanoparticle, ultrasonic disperse 2-3 hour, add sodium nitride, aluminum chloride, stir 24-25 hour, suction filtration at 30-35 DEG C, washing, vacuum-drying, obtains Sodium Azide rice corpuscles;
(6) above-mentioned diacetone-acryloamide(DAA) is joined in 27-30 times of deionized water, stir, add diacetone alcohol, glycerol glycerinate, insulated and stirred 3-5 minute at 80-90 DEG C, add sp80, brominated Polystyrene, send in the oil bath of 110-120 DEG C, insulated and stirred 7-10 minute, discharging cools, and adds the 20-30% of above-specified high density polyethylene weight, stir 20-30 minute, obtain modification blend composition;
(7) by above-mentioned Sodium Azide rice corpuscles, the mixing of alkynyl multipolymer, join in remaining dimethyl formamide, nitrogen bubble 30-40 minute, add 2-3% sodium ascorbate solution, 2-3% copper-bath successively, 20-24 hour is reacted at being placed in 76-80 DEG C, add modification blend composition, send in the oil bath of 130-137 DEG C, insulated and stirred 3-4 minute, discharging cools, and suction filtration, respectively washs 2-3 time with distilled water, dimethyl formamide, acetone successively by filter cake, after vacuum-drying, obtain engrafted nanometer particle;
(8) mixed with each raw material of residue by above-mentioned engrafted nanometer particle, stir, be sent to twin screw extruder, melt extrude, cooling, pulverizes and sieves, to obtain final product.
Advantage of the present invention is:
(1) coating of the present invention has good shock resistance:
Graphene, nano silicon all have larger specific surface area, can strengthen Graphene, reactive force between nano silicon and polyvinyl resin, put forward heavily stressed transfer efficiency, and then improve its shock resistance;
(2) coating of the present invention has good erosion resistance;
Graphene, nano silicon in the medium-altitude dispersion of resin, can form fine and close film, corrosive medium is more difficult to be penetrated in coating by this interface, well improves corrosion resistance;
(3) coating of the present invention has good heat conduction and heat radiation:
First the present invention prepares the styrene-maleic anhydride copolymer containing multiple alkynyl on molecular chain, then modified Nano particle, its surface is made to introduce multiple azido-, finally utilize " click " chemical method at particle surface graftomer, polymer molecular chain has multiple point to be grafted to particle surface, molecular chain " is crouched down " at particle surface, thus it is coated what do not need to realize under the condition introducing number of polymers chain to particle, obtain grafting density high, the nanoparticle of good dispersity, strengthen its dispersiveness in resin matrix, the two-dimension plane structure of Graphene that is scattered here and there in resin and the tridimensional network of nano silicon can form stable heat conduction network, greatly improve the transmission of heat, play good heat conduction and heat radiation effect.
The present invention adopts polyethylene, polystyrene blend, effectively can improve surface strength and the toughness of film, improves weathering resistance and resistance to deterioration.
Embodiment
A kind of polyethylene, polystyrene composite radiating coating, it is made up of the raw material of following weight parts:
Brominated Polystyrene 10, Zelan 338 12, propiolic alcohol 6, tetrahydrofuran (THF) 90, Graphene 4, nano silicon 16, silane coupling agent KH5600.2, dimethyl formamide 700, sodium nitride 4, aluminum chloride 0.04,2% sodium ascorbate solution 1.6,2% copper-bath 1.8, high density polyethylene(HDPE) 120, diacetone alcohol 1, glycerol glycerinate 1, diacetone-acryloamide(DAA) 0.6, sp800.3, Calcium Fluoride (Fluorspan) 2, magnesium fluoride 1.
Described polyethylene, a preparation method for polystyrene heat radiation coating, comprise the following steps:
(1) by above-mentioned Calcium Fluoride (Fluorspan), magnesium fluoride mixing, join in 10 times of deionized waters, be heated to 70 DEG C, add diacetone-acryloamide(DAA), Zelan 338, insulated and stirred 20 minutes, cooling, dehydration, vacuum-drying, obtains modified copolymer;
(2) by above-mentioned multipolymer, propiolic alcohol, tetrahydrofuran (THF) mixing, insulated and stirred 10 hours at 50 DEG C, underpressure distillation, removing liquid, vacuum-drying, obtains alkynyl multipolymer;
(3) by Graphene, nano silicon mixing, ball milling 30 minutes;
(4) get above-mentioned ball milling particle, join in the toluene of 20 times, ultrasonic disperse 2 hours, adds silane coupling agent KH560, and raised temperature is 86 DEG C, insulated and stirred 10 hours, cooling, suction filtration, and vacuum-drying, obtains silanization nanoparticle;
(5) get 46% of above-mentioned dimethyl formamide weight, add silanization nanoparticle, ultrasonic disperse 2 hours, adds sodium nitride, aluminum chloride, stirs 24 hours, suction filtration at 30 DEG C, washing, and vacuum-drying, obtains Sodium Azide rice corpuscles;
(6) above-mentioned diacetone-acryloamide(DAA) is joined in 27 times of deionized waters, stir, add diacetone alcohol, glycerol glycerinate, at 80 DEG C, insulated and stirred 3 minutes, adds sp80, brominated Polystyrene, send in the oil bath of 110 DEG C, insulated and stirred 7 minutes, discharging cools, and adds 20% of above-specified high density polyethylene weight, stir 20 minutes, obtain modification blend composition;
(7) by above-mentioned Sodium Azide rice corpuscles, the mixing of alkynyl multipolymer, join in remaining dimethyl formamide, nitrogen bubble 30 minutes, add 2% sodium ascorbate solution, 2% copper-bath successively, react 20 hours at being placed in 76 DEG C, add modification blend composition, send in the oil bath of 130 DEG C, insulated and stirred 3 minutes, discharging cools, and suction filtration, respectively washs 2 times with distilled water, dimethyl formamide, acetone successively by filter cake, after vacuum-drying, obtain engrafted nanometer particle;
(8) mixed with each raw material of residue by above-mentioned engrafted nanometer particle, stir, be sent to twin screw extruder, melt extrude, cooling, pulverizes and sieves, to obtain final product.
Performance test:
Appearance of film: flat smooth, without shrinkage cavity, free of pinholes;
Just recoiling test: pass through;
Pencil hardness test: 2H is without scuffing;
Sticking power and resistance to Neutral Salt Spray Corrosion grade are 2 grades;
Thermal conductivity is 0.473W/mK.
Claims (2)
1. polyethylene, a polystyrene composite radiating coating, is characterized in that what it was made up of the raw material of following weight parts:
Brominated Polystyrene 10-17, styrene-maleic anhydride copolymer 12-15, propiolic alcohol 6-10, tetrahydrofuran (THF) 90-100, Graphene 4-7, nano silicon 16-20, silane coupling agent KH5600.2-0.3, dimethyl formamide 700-800, sodium nitride 4-5, aluminum chloride 0.04-0.05, 2-3% sodium ascorbate solution 1.6-2, 2-3% copper-bath 1.8-2, high density polyethylene(HDPE) 120-130, diacetone alcohol 1-2, glycerol glycerinate 1-2, diacetone-acryloamide(DAA) 0.6-1, sp800.3-1, Calcium Fluoride (Fluorspan) 2-4, magnesium fluoride 1-2.
2. a preparation method for polyethylene as claimed in claim 1, polystyrene heat radiation coating, is characterized in that comprising the following steps:
(1) by above-mentioned Calcium Fluoride (Fluorspan), magnesium fluoride mixing, join in 10-12 times of deionized water, be heated to 70-80 DEG C, add diacetone-acryloamide(DAA), styrene-maleic anhydride copolymer, insulated and stirred 20-30 minute, cooling, dehydration, vacuum-drying, obtains modified copolymer;
(2) by above-mentioned multipolymer, propiolic alcohol, tetrahydrofuran (THF) mixing, insulated and stirred 10-16 hour at 50-60 DEG C, underpressure distillation, removing liquid, vacuum-drying, obtains alkynyl multipolymer;
(3) by Graphene, nano silicon mixing, ball milling 30-40 minute;
(4) get above-mentioned ball milling particle, join in 20-30 toluene doubly, ultrasonic disperse 2-3 hour, adds silane coupling agent KH560, and raised temperature is 86-90 DEG C, insulated and stirred 10-12 hour, cooling, suction filtration, and vacuum-drying, obtains silanization nanoparticle;
(5) get the 46-50% of above-mentioned dimethyl formamide weight, add silanization nanoparticle, ultrasonic disperse 2-3 hour, add sodium nitride, aluminum chloride, stir 24-25 hour, suction filtration at 30-35 DEG C, washing, vacuum-drying, obtains Sodium Azide rice corpuscles;
(6) above-mentioned diacetone-acryloamide(DAA) is joined in 27-30 times of deionized water, stir, add diacetone alcohol, glycerol glycerinate, insulated and stirred 3-5 minute at 80-90 DEG C, add sp80, brominated Polystyrene, send in the oil bath of 110-120 DEG C, insulated and stirred 7-10 minute, discharging cools, and adds the 20-30% of above-specified high density polyethylene weight, stir 20-30 minute, obtain modification blend composition;
(7) by above-mentioned Sodium Azide rice corpuscles, the mixing of alkynyl multipolymer, join in remaining dimethyl formamide, nitrogen bubble 30-40 minute, add 2-3% sodium ascorbate solution, 2-3% copper-bath successively, 20-24 hour is reacted at being placed in 76-80 DEG C, add modification blend composition, send in the oil bath of 130-137 DEG C, insulated and stirred 3-4 minute, discharging cools, and suction filtration, respectively washs 2-3 time with distilled water, dimethyl formamide, acetone successively by filter cake, after vacuum-drying, obtain engrafted nanometer particle;
(8) mixed with each raw material of residue by above-mentioned engrafted nanometer particle, stir, be sent to twin screw extruder, melt extrude, cooling, pulverizes and sieves, to obtain final product.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107936380A (en) * | 2017-12-21 | 2018-04-20 | 吴江市强塑阀门管件厂 | A kind of preparation process of modified composite plastic and its application |
| CN108759543A (en) * | 2018-06-14 | 2018-11-06 | 黄山科能汽车散热器有限公司 | A kind of vehicle radiator |
| CN108859739A (en) * | 2018-06-14 | 2018-11-23 | 黄山科能汽车散热器有限公司 | A kind of vehicle radiator mounting and positioning device |
| CN112940206A (en) * | 2021-03-03 | 2021-06-11 | 广东惠和硅制品有限公司 | Modified silica sol and acrylate composite emulsion and coating |
| CN114369395A (en) * | 2021-12-09 | 2022-04-19 | 大庆市盛日石油技术开发有限公司 | Graphene self-lubricating anti-drag coating |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107936380A (en) * | 2017-12-21 | 2018-04-20 | 吴江市强塑阀门管件厂 | A kind of preparation process of modified composite plastic and its application |
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| CN108859739A (en) * | 2018-06-14 | 2018-11-23 | 黄山科能汽车散热器有限公司 | A kind of vehicle radiator mounting and positioning device |
| CN112940206A (en) * | 2021-03-03 | 2021-06-11 | 广东惠和硅制品有限公司 | Modified silica sol and acrylate composite emulsion and coating |
| CN112940206B (en) * | 2021-03-03 | 2023-01-17 | 广东惠和硅制品有限公司 | Modified silica sol and acrylate composite emulsion and coating |
| CN114369395A (en) * | 2021-12-09 | 2022-04-19 | 大庆市盛日石油技术开发有限公司 | Graphene self-lubricating anti-drag coating |
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Application publication date: 20151202 |