CN103305104B - A kind of method preparing Dry powder type thermal radiation coating - Google Patents
A kind of method preparing Dry powder type thermal radiation coating Download PDFInfo
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- CN103305104B CN103305104B CN201310268839.9A CN201310268839A CN103305104B CN 103305104 B CN103305104 B CN 103305104B CN 201310268839 A CN201310268839 A CN 201310268839A CN 103305104 B CN103305104 B CN 103305104B
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Abstract
The present invention relates to a kind of Dry powder type thermal radiation coating and preparation method thereof, coating composition is: resin is 65 ~ 70%; Solidifying agent is 5 ~ 10%; Filler is 2 ~ 10%; Auxiliary agent is 5 ~ 10%; Filler is the mixed powder of calcium carbonate and nano-sized carbon; Preparation method's step is, resin, solidifying agent solvent method is mixed; Extrude cooling upon mixing, section; Ball mill pulverizing is carried out after section, for subsequent use; By resin, solidifying agent, filler ball milling co-grinding; By the material screening after co-grinding; Cooling is melt extruded, section after screening; Ball mill pulverizing after section, for subsequent use; Two kinds of lay-by materials are mixed with auxiliary agent, melt extrudes cooling, section; By the material ball mill pulverizing after section; By dry for the material after ball milling drying and packaging; This product has good heat dissipation effect, the feature that price is low; To environment, gel phenomenon can not be there will not be; Dispersed more superior than melt mixing methods; Electrostatic spraying effect and film levelling effective.
Description
Technical field
The present invention relates to a kind of heat radiation coating, especially relate to a kind of preparation method strengthening the Dry powder type thermal radiation coating of radiating effect.
Background technology
In social fast development, make various electric equipment products all towards miniaturization, lightweight, densification and high efficiency future development, so there is high-power electronic product obtain fast development, and consequent a large amount of heat does not distribute space will directly affect the job stability of electronic product, processing safety and work-ing life, the conventional type of cooling can not meet the cooling requirements of high power electronic product, so the rate of heat dissipation of electronic product just must be improved, and adopt at present maximum be coated heat radiation coating.
Heat radiation coating, by improving body surface radiation efficiency (particularly improving infrared radiation efficiency), augmented heat dispersion, there is cost low, implement simple, heat loss through radiation High tailored coating is directly constructed to the body surface wanting radiating and cooling, and heat loss through radiation High tailored coating can with infrared wave to the heat on airspace radiating object, reduce body surface and internal temperature, radiating and cooling is obvious.Coating heat radiation does not affect by surrounding medium, and coating heat radiation can use in vacuum environment.Coating, while playing radiation cooling, can also increase the performances such as self-cleaning, insulativity, preservative property, water-repellancy, antiacid alkali.
At present, heat radiation filler conventional in heat radiation coating is aluminium nitride, silicon nitride, aluminum oxide, beryllium oxide, magnesium oxide, silicon oxide and zinc oxide etc., the price of the material of these high thermal conductivity is higher, and the organic solvent toxicity preparing coating comparatively conference causes environmental pollution, also can the phenomenon of generating portion gel, therefore, just need that a kind of price is low, environmental friendliness and there will not be the heat radiation coating of gel phenomenon.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of Dry powder type thermal radiation coating and preparation method thereof, and it has cheap, to environment, can not there will not be gel phenomenon, the feature of good heat dissipation effect.
The present invention solves the technical scheme that its technical problem takes: a kind of Dry powder type thermal radiation coating, comprises following component:
Described filler is the mixed powder of calcium carbonate and nano-sized carbon.
Concrete further, described heat radiation coating also comprises pigment.
Concrete further, what described resin adopted is high-temperature polyester or urethane.
Concrete further, what described auxiliary agent adopted is flow agent.
A kind of method preparing Dry powder type thermal radiation coating of the present invention, comprises the following steps:
S1: resin, solidifying agent solvent method are first carried out Homogeneous phase mixing;
S2: mixed for S1 material is extruded cooling, cuts into slices;
S3: the material after being cut into slices by S2 carries out ball mill pulverizing, for subsequent use;
S4: adopt ball milling method to carry out co-grinding resin, solidifying agent and filler;
S5: the material after S4 co-grinding is screened;
S6: the material molten after being screened by S5 extrudes cooling, cuts into slices;
S7: the material after being cut into slices by S6 carries out ball mill pulverizing, for subsequent use;
S8: the lay-by material of S3 and S7 is mixed again with auxiliary agent, melt extrudes cooling, cut into slices;
S9: the material ball mill pulverizing after being cut into slices by S8 reaches micron order;
S10: the material after S9 ball milling is adopted falling type desiccating method drying and packaging;
Step S1 ~ S3 and step S4 ~ S7 carries out simultaneously.
Concrete further, add pigment mixing in described step S1 and step S4.
Concrete further, the auxiliary agent in described step S8 is flow agent.
Concrete further, what described resin adopted is high-temperature polyester or urethane.
The beneficial effects of the utility model are, compared with prior art advantage of the present invention is: have stronger radiating effect, cheap feature; Gel phenomenon can not be there will not be to environment; The dispersed product than melt mixing methods manufacture is superior; Electrostatic spraying effect and film levelling effective.
Accompanying drawing explanation
Fig. 1 is the schema of making method of the present invention;
Fig. 2 is based on improving the product of surface-area coating and the radial coordinate figure without the product of coating;
Fig. 3 is the radial coordinate figure of the product based on vibration radiation coating and the product without coating;
Fig. 4 is the product of coated coating of the present invention and the radial coordinate figure without coating products;
Fig. 5 is the product of coated coating of the present invention and the coordinate diagram without the product optical throughput of coating.
Embodiment
Below in conjunction with some embodiments, the present invention is further described.
First heat radiation coating is prepared as shown in Figure 1: a, according to a certain percentage high-temperature polyester, solidifying agent, toner raw material weigh according to formula, then with solvent method first mix extrude afterwards cooling section after with ball mill pulverizing, because the powder obtained in this way has raw material, state separately exists, uniform color; B, according to a certain percentage high-temperature polyester, solidifying agent, calcium carbonate, nano-carbon powder, toner raw material weighs according to formula, then first carries out co-grinding with breaking methods such as ball millings, with ball mill pulverizing after cooling section is extruded in melting after sieving and obtaining initial product; C, above-mentioned a and b two powder ink according to a certain percentage and add levelling Ji again mixing after melting extrude cooling section after again reach micron order with ball mill pulverizing; D, final powder comminuted powder carry out drying, obtain product for subsequent use.
Embodiment 1: the product scribbling coating of the present invention is contrasted with the product without any coating.
Table 1:LED surface-mounted light bar
| P(W) | Max C | |
| Without coating | 12.7 | 95.3 |
| There is coating | 12.7 | 86.5 |
Power is when 12.7w, the aluminium base of Surface-mount LED lamp bar in the absence of the coating temperature is up to 95.3 degree, aluminium base top temperature when coated coating of the present invention reaches 86.5 degree, such two kinds of modes lower coated coating of the present invention of comparing differs at 9 degree with without coating, illustrates to have better radiating effect after coated coating of the present invention like this.
Table 2: small power COB module
| P(W) | Max C | |
| Without coating | 4 | 105.4 |
| There is coating | 4 | 100.4 |
Power is when 4W, small power COB module in the absence of the coating temperature is up to 105.4 degree, when coated coating of the present invention, top temperature reaches 100.4 degree, such two kinds of modes lower coated coating of the present invention of comparing differs at 5 degree with without coating, illustrates that coated coating of the present invention also has obvious cooling phenomenon in low power situation like this.
Embodiment 2: the product scribbling coating of the present invention is contrasted based on the product improving surface-area coating, the product scribbled based on vibration radiation coating with scribbling.
As shown in Figure 2 based on improving the product of surface-area coating and the radial coordinate figure without the product of coating, as can be seen from the figure having good radiation effect when high temperature, and there is no radiation effect when low temperature, and the temperature difference of actual cooling is at 1 ~ 2 DEG C.
As shown in Figure 3 based on product and the radial coordinate figure without the product of coating of vibration radiation coating, as can be seen from the figure coating does not tightly play thermolysis and hinders heat loss through radiation effect on the contrary, cooling-down effect is not clearly in actual use, at 1 ~ 3 DEG C.
As shown in Figure 4 coated coating of the present invention product with without the radial coordinate figure of coating products, the nano carbon microsphere that the coating based on nano-sized carbon crystal is mixed by ion also can active electron transition when low temperature, and heat loss through radiation ratio is large; Cooling degree increases with the rising of temperature, and actual cooling can reach 6 ~ 10 DEG C.
Coated coating of the present invention and the product without coating are done lower contrast by the parameter below with regard to electric current and optical throughput.
The product of coated coating of the present invention and the coordinate diagram without the product optical throughput of coating as shown in Figure 5.
Table 3: the relation of optical throughput and electric current
Can find out that from Fig. 5 and table 3 thermolysis of radiation paint significantly improves optical throughput; Thermal value is larger, and optical throughput improves more obvious; Radiation paint can be held optical throughput and export when superpower inputs; Obvious without spoke coating luminous flux attenuation when superpower inputs.
In sum, coating of the present invention is than general coating or do not have the product of coating to have better radiating effect, and the improvement of optical throughput is obvious.
The present invention's solvent method dry mixed coating that makes powder has the following advantages:
The resin that 1, can manufacture with solvent method, molecular resin amount can control, and removing unreacted monomer is convenient.Mobility in addition during resin melting is improved.
2, because with solvent state dispersion paints composition, so the dispersiveness of pigment, filler is better than melt mixing methods, good luster is smeared, bright-colored.
3, with solution state toning, toning precision is high.
4, because do not adopt melting mixing technique, easily curability at low temperatures powder coating is manufactured, in the fabrication process can not generating portion gel, stay-in-grade product can be obtained.
5, can control powder coating particles shape (ball-type to unformed), particle shape is close, narrow particle size distribution, electrostatic spraying effect and film levelling effective.
6, without melt extruding and pulverizing, easily metal flashing powder coatings is manufactured.
It is emphasized that: be only preferred embodiment of the present invention above, not any pro forma restriction is done to the present invention, every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (3)
1. prepare a method for Dry powder type thermal radiation coating, it is characterized in that, comprise the following steps:
S1: resin, solidifying agent and pigment solvent method are first carried out Homogeneous phase mixing;
S2: mixed for S1 material is extruded cooling, cuts into slices;
S3: the material after being cut into slices by S2 carries out ball mill pulverizing, for subsequent use;
S4: adopt ball milling method to carry out co-grinding resin, solidifying agent, filler and pigment;
S5: the material after S4 co-grinding is screened;
S6: the material molten after being screened by S5 extrudes cooling, cuts into slices;
S7: the material after being cut into slices by S6 carries out ball mill pulverizing, for subsequent use;
S8: the lay-by material of S3 and S7 is mixed again with auxiliary agent, melt extrudes cooling, cut into slices;
S9: the material ball mill pulverizing after being cut into slices by S8 reaches micron order;
S10: the material after S9 ball milling is adopted falling type desiccating method drying and packaging;
Step S1 ~ S3 and step S4 ~ S7 carries out simultaneously;
Its system component is:
Other is pigment;
Described filler is the mixed powder of calcium carbonate and nano-sized carbon.
2. the method preparing Dry powder type thermal radiation coating according to claim 1, is characterized in that: the auxiliary agent in described step S8 is flow agent.
3. the method preparing Dry powder type thermal radiation coating according to claim 1, is characterized in that: what described resin adopted is high-temperature polyester or urethane.
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| CN201310268839.9A CN103305104B (en) | 2013-07-01 | 2013-07-01 | A kind of method preparing Dry powder type thermal radiation coating |
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| CN201310268839.9A CN103305104B (en) | 2013-07-01 | 2013-07-01 | A kind of method preparing Dry powder type thermal radiation coating |
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| CN103305104B true CN103305104B (en) | 2016-01-06 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103756389B (en) * | 2014-01-10 | 2016-08-24 | 山东亚明照明科技有限公司 | Heat loss through radiation High tailored coating, its preparation method and application thereof |
| CN104033220A (en) * | 2014-05-27 | 2014-09-10 | 东莞市石碣宇商电子厂 | Automobile exhaust improving method |
| CN105368191A (en) * | 2015-12-10 | 2016-03-02 | 太仓贝斯特机械设备有限公司 | Anti-freezing corrosion-resistant aluminum rod |
| CN108165142A (en) * | 2018-01-23 | 2018-06-15 | 苏州聚康新材料科技有限公司 | A kind of thermosetting powder coating preparation method and applications for outdoor application |
Citations (3)
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|---|---|---|---|---|
| CN1826392A (en) * | 2003-07-18 | 2006-08-30 | 恩格哈德公司 | Powder coating precursors and the use thereof in powder coating compositions |
| CN102061121A (en) * | 2010-12-06 | 2011-05-18 | 老虎粉末涂料制造（太仓）有限公司 | Environmental-protection anti-corrosive heat-dissipation powder paint, and preparation method and application thereof |
| CN102453404A (en) * | 2010-10-17 | 2012-05-16 | 青岛三利中德美水设备有限公司 | Novel polyethylene powder coating |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1826392A (en) * | 2003-07-18 | 2006-08-30 | 恩格哈德公司 | Powder coating precursors and the use thereof in powder coating compositions |
| CN102453404A (en) * | 2010-10-17 | 2012-05-16 | 青岛三利中德美水设备有限公司 | Novel polyethylene powder coating |
| CN102061121A (en) * | 2010-12-06 | 2011-05-18 | 老虎粉末涂料制造（太仓）有限公司 | Environmental-protection anti-corrosive heat-dissipation powder paint, and preparation method and application thereof |
Non-Patent Citations (1)
| Title |
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| 碳纳米管在涂料中的应用研究概况;周如东等;《上海涂料》;20090131;第47卷(第1期);第25-28页 * |
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Effective date of registration: 20160414 Address after: 232244 Anhui province Shouxian County Shou Chun Zhen Bei Jie Yuan Tong Si Xiang Patentee after: ANHUI TANSUO MATERIALS TECHNOLOGY CO., LTD. Address before: 200000 Shanghai city Songjiang District Sheshan qiangming business center D district (Xixia Road No. 82) Patentee before: Shanghai Jisen Trading Co., Ltd. |
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Effective date of registration: 20210819 Address after: 215000 rooms 1308 and 1310, 13 / F, block C, No. 209, Zhujiang South Road, Mudu Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: Suzhou bode Electronics Co.,Ltd. Address before: 232244 yuantongsi lane, North Street, Shouchun Town, Shou county, Anhui Province Patentee before: ANHUI TANSUO MATERIALS TECHNOLOGY Co.,Ltd. |