CN109705725A - A kind of heat radiating type polyamide powder coating - Google Patents
A kind of heat radiating type polyamide powder coating Download PDFInfo
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- CN109705725A CN109705725A CN201811638656.0A CN201811638656A CN109705725A CN 109705725 A CN109705725 A CN 109705725A CN 201811638656 A CN201811638656 A CN 201811638656A CN 109705725 A CN109705725 A CN 109705725A
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- powder coating
- heat radiating
- radiating type
- antioxidant
- heat
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Abstract
The invention discloses a kind of heat radiating type polyamide powder coating, are made of the component of following mass percent: PA11 polyamide 6 5-80%, smooth degasifier 1-1.5%, levelling agent 1-1.5%, adhesion promoter 1-2%, antioxidant 0.5-1%, heat dissipation auxiliary agent 3-10%, filler 4-29.5%.Heat-dissipation powder paint of the invention has the characteristics that light weight, film performance are excellent, heat conduction and heat radiation effect is good, heat-radiating properties are strong, therefore can be widely applied to the thermal dispersant coatings of LED, electric appliance and electronic component.
Description
Technical field
The present invention relates to technical field of coatings, especially a kind of heat radiating type polyamide powder coating.
Background technique
In recent years, the device of heat sinking function is widely used in national life, such as household warming, air-conditioning heat dissipation
Device, electronic component, lamp, heater etc., many products in the long-term use, can cause the tired of heat in heat sink part
Product, keeps heat transfer efficiency low, leads to a large amount of energy waste.Currently, common heat conduction and heat radiation material is mostly with high molecular material and height
Heat Conduction Material is compound, and highly heat-conductive material includes metal packing and inorganic non-metallic material, such as carbon nanotube and graphene.Asphalt mixtures modified by epoxy resin
Rouge and polyester resin are one of common powder coating resins, have excellent performance, are widely used in heat-dissipation paint
In.
But epoxy resin, polyester resin and graphene be during cooling application, often only due to molecular structure problem
With good lateral heat dissipation performance, it is not connected between layers, longitudinal heat dissipation performance is poor.
Summary of the invention
In order to solve the above technical problems, there is light weight, apply the present invention provides a kind of heat radiating type polyamide powder coating
The features such as film properties are excellent, heat conduction and heat radiation effect is good, heat-radiating properties are strong, therefore can be widely applied to LED, electric appliance and electronics
The thermal dispersant coatings of element.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of heat radiating type polyamide powder coating, is made of the component of following mass percent:
PA11 polyamide 6 5-80%
Smooth degasifier 1-1.5%
Levelling agent 1-1.5%
Adhesive force modifying agent 1-2%
Antioxidant 0.5-1%
Radiate auxiliary agent 3-10%
Filler 4-29.5%
Raw material are put into compounding jar together according to aforementioned proportion, is pre-mixed according to 5 minutes * 3 times, is then existed
It is squeezed out on extruder, tabletting, one area of extrusion temperature is 180 DEG C, and 2nd area are 220 DEG C, then the broken progress of sheet stock is finely divided, will be thick
The fine powder that powder obtains 20-50 microns by revolving sub-sieve is heat radiating type polyamide powder coating of the invention.
Preferably, the PA11 polyamide softening point is 180-200 DEG C.
Preferably, the smooth degasifier is synthesis microwax.
Preferably, the levelling agent is acrylate copolymer.
Preferably, the antioxidant is Hinered phenols antioxidant, including antioxidant 1010, antioxidant 1076, antioxidant
1098, one of antioxidant 1024.
Preferably, the heat dissipation auxiliary agent is made of following components:
10-30% graphene
50-80% polyamide
Above-mentioned all raw materials are added in high-speed mixer and are uniformly mixed, are then put into compounding jar together, according to 5
It being pre-mixed minutes for * 3 times, is then squeezed out on extruder, tabletting, one area of extrusion temperature is 80 DEG C, and 2nd area are 130 DEG C, then
The broken progress of sheet stock is finely divided, coarse powder is obtained into 20-50 microns of fine powder as heat dissipation auxiliary agent by revolving sub-sieve.
Preferably, the graphene sheet layer thickness is less than 10nm, partial size is 2.5 μm -10 μm.
Preferably, the polyamide is low-molecular-weight polyamide resin, it is polymerize by dimeric dibasic acid and aliphatic diamine
It obtains, molecular weight 400-800, softening point is 80-130 DEG C.
Beneficial effects of the present invention:
Heat-dissipation powder paint of the invention have light weight, film performance is excellent, heat conduction and heat radiation effect is good, heat-radiating properties
The features such as strong, therefore can be widely applied to the thermal dispersant coatings of LED, electric appliance and electronic component.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
Embodiment 1
(1) heat dissipation auxiliary agent preparation:
A kind of heat radiating type polyamide powder coating heat dissipation auxiliary agent, is made of following components:
20% graphene
80% polyamide
Wherein graphene uses Hefei micro crystal material Science and Technology Ltd. WJSG1410, and polyamide uses Anqing rainbow space
The HY-408 of chemical industry Co., Ltd；
Above-mentioned all raw materials are added in high-speed mixer and are uniformly mixed, are then put into compounding jar together, according to 5
It being pre-mixed minutes for * 3 times, is then squeezed out on extruder, tabletting, one area of extrusion temperature is 80 DEG C, and 2nd area are 130 DEG C, then
The broken progress of sheet stock is finely divided, coarse powder is obtained into 20-50 microns of fine powder as heat dissipation auxiliary agent by revolving sub-sieve.
(2) a kind of heat radiating type polyamide powder coating, is made of the component of following mass percent:
PA11 polyamide 6 5%
Smooth degasifier 1%
Levelling agent 1%
Adhesive force modifying agent 1%
Antioxidant 0.5%
Radiate auxiliary agent 3%
Filler 29.5%
PA11 polyamide: BMN-10440, French Arkema's product；
Smooth degasifier: the prompt sensible new material Co., Ltd SA500 of six peaces；
Levelling agent: the PV88 of German moral letter benefit chemistry；
Adhesive force modifying agent: the prompt sensible new material Co., Ltd SA5503 of six peaces；
Antioxidant: German BASF antioxidant 1010；
Blanc fixe: the blanc fixe of Shaanxi enrichment chemical industry Co., Ltd；
Raw material are put into together according to aforementioned proportion carry out being pre-mixed in compounding jar → extruder extrusion → tabletting →
Crushing → sieving → finished product.
Embodiment 2
(1) heat dissipation auxiliary agent preparation:
A kind of heat radiating type polyamide powder coating heat dissipation auxiliary agent, is made of following components:
25% graphene
75% polyamide
Wherein graphene uses Hefei micro crystal material Science and Technology Ltd. WJSG1410, and polyamide uses Anqing rainbow space
The HY-408 of chemical industry Co., Ltd；
Above-mentioned all raw materials are added in high-speed mixer and are uniformly mixed, are then put into compounding jar together, according to 5
It being pre-mixed minutes for * 3 times, is then squeezed out on extruder, tabletting, one area of extrusion temperature is 80 DEG C, and 2nd area are 130 DEG C, then
The broken progress of sheet stock is finely divided, coarse powder is obtained into 20-50 microns of fine powder as heat dissipation auxiliary agent by revolving sub-sieve.
(2) a kind of heat radiating type polyamide powder coating, is made of the component of following mass percent:
PA11 polyamide 70%
Smooth degasifier 1.25%
Levelling agent 1.25%
Adhesive force modifying agent 1.5%
Antioxidant 0.75%
Radiate auxiliary agent 6%
Filler 12.5%
PA11 polyamide: BMN-10440, French Arkema's product；
Smooth degasifier: the prompt sensible new material Co., Ltd SA500 of six peaces；
Levelling agent: the PV88 of German moral letter benefit chemistry；
Adhesive force modifying agent: the prompt sensible new material Co., Ltd SA5503 of six peaces；
Antioxidant: German BASF antioxidant 1010；
Blanc fixe: the blanc fixe of Shaanxi enrichment chemical industry Co., Ltd；
Raw material are put into together according to aforementioned proportion carry out being pre-mixed in compounding jar → extruder extrusion → tabletting →
Crushing → sieving → finished product.
Embodiment 3
(1) heat dissipation auxiliary agent preparation:
A kind of heat radiating type polyamide powder coating heat dissipation auxiliary agent, is made of following components:
30% graphene
70% polyamide
Wherein graphene uses Hefei micro crystal material Science and Technology Ltd. WJSG1410, and polyamide uses Anqing rainbow space
The HY-408 of chemical industry Co., Ltd；
Above-mentioned all raw materials are added in high-speed mixer and are uniformly mixed, are then put into compounding jar together, according to 5
It being pre-mixed minutes for * 3 times, is then squeezed out on extruder, tabletting, one area of extrusion temperature is 80 DEG C, and 2nd area are 130 DEG C, then
The broken progress of sheet stock is finely divided, coarse powder is obtained into 20-50 microns of fine powder as heat dissipation auxiliary agent by revolving sub-sieve.
(2) a kind of heat radiating type polyamide powder coating, is made of the component of following mass percent:
PA11 polyamide 80%
Smooth degasifier 1.5%
Levelling agent 1.5%
Adhesive force modifying agent 2%
Antioxidant 1%
Radiate auxiliary agent 10%
Filler 4%
PA11 polyamide: BMN-10440, French Arkema's product；
Smooth degasifier: the prompt sensible new material Co., Ltd SA500 of six peaces；
Levelling agent: the PV88 of German moral letter benefit chemistry；
Adhesive force modifying agent: the prompt sensible new material Co., Ltd SA5503 of six peaces；
Antioxidant: German BASF antioxidant 1010；
Blanc fixe: the blanc fixe of Shaanxi enrichment chemical industry Co., Ltd；
Raw material are put into together according to aforementioned proportion carry out being pre-mixed in compounding jar → extruder extrusion → tabletting →
Crushing → sieving → finished product.
The method that the powdery paints of embodiment 1-3 is electrostatically sprayed is sprayed on stainless steel respectively, is toasted at 200 DEG C
10 minutes, finally obtaining dried film thickness was 90um, carried out the performance test of film to each formula respectively, another Example 1-3's
Powdery paints carries out tabletting and diameter is made to be 25mm, with a thickness of the test sample of 5mm, is carried out using constant heat flux method test device
Thermal conductivity test, test result are specifically shown in Table 1；
The performance test methods and evaluation criterion of film are as follows:
The levelability evaluation criterion of film carries out levelling grading according to the levelling effect rating scale plate of U.S. PCI, and 1 is
Difference, 10 be excellent；
The adhesive force intensity of film is referring to standard GB/T/T 9286；
The impact resistant strength of film is referring to standard GB/T/T 1732；
Table 1: the various performance indicators of film obtained by embodiment 1-3
As shown in Table 1, the thermal coefficient of film prepared by the present invention reaches 4.9, it can thus be appreciated that preparation coating have compared with
High heating conduction.
The above content is just an example and description of the concept of the present invention, affiliated those skilled in the art
It makes various modifications or additions to the described embodiments or is substituted in a similar manner, without departing from invention
Design or beyond the scope defined by this claim, be within the scope of protection of the invention.
Claims (8)
1. a kind of heat radiating type polyamide powder coating, which is characterized in that be made of the component of following mass percent:
PA11 polyamide 6 5-80%
Smooth degasifier 1-1.5%
Levelling agent 1-1.5%
Adhesive force modifying agent 1-2%
Antioxidant 0.5-1%
Radiate auxiliary agent 3-10%
Filler 4-29.5%；
Raw material are put into compounding jar together according to aforementioned proportion, is pre-mixed according to 5 minutes * 3 times, is then being squeezed out
It is squeezed out on machine, tabletting, one area of extrusion temperature is 180 DEG C, and 2nd area are 220 DEG C, then the broken progress of sheet stock is finely divided, and coarse powder is led to
The fine powder that overwinding sub-sieve obtains 20-50 microns is heat radiating type polyamide powder coating.
2. a kind of heat radiating type polyamide powder coating according to claim 1, which is characterized in that the PA11 polyamide is soft
Changing point is 180-200 DEG C.
3. a kind of heat radiating type polyamide powder coating according to claim 1, which is characterized in that the smooth degasifier is
Synthesize microwax.
4. a kind of heat radiating type polyamide powder coating according to claim 1, which is characterized in that the levelling agent is propylene
Acid ester copolymer.
5. a kind of heat radiating type polyamide powder coating according to claim 1, which is characterized in that the antioxidant is to be obstructed
One of phenolic antioxidant, including antioxidant 1010, antioxidant 1076, antioxidant 1098, antioxidant 1024.
6. a kind of heat radiating type polyamide powder coating according to claim 1, which is characterized in that the heat dissipation auxiliary agent by with
Lower component is constituted:
10-30% graphene
50-80% polyamide；
Above-mentioned all raw materials are added in high-speed mixer and are uniformly mixed, are then put into compounding jar together, according to 5 points
It is pre-mixed for clock * 3 times, is then squeezed out on extruder, tabletting, one area of extrusion temperature is 80 DEG C, and 2nd area are 130 DEG C, then will
The broken progress of sheet stock is finely divided, and coarse powder is obtained 20-50 microns of fine powder as heat dissipation auxiliary agent by revolving sub-sieve.
7. a kind of heat radiating type polyamide powder coating according to claim 6, which is characterized in that the graphene film thickness
Degree is less than 10nm, and partial size is 2.5 μm -10 μm.
8. a kind of heat radiating type polyamide powder coating according to claim 6, which is characterized in that the polyamide is
Low-molecular-weight polyamide resin is polymerize by dimeric dibasic acid and aliphatic diamine, molecular weight 400-800, and softening point is
80-130℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811638656.0A CN109705725A (en) | 2018-12-29 | 2018-12-29 | A kind of heat radiating type polyamide powder coating |
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| CN201811638656.0A CN109705725A (en) | 2018-12-29 | 2018-12-29 | A kind of heat radiating type polyamide powder coating |
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| CN109705725A true CN109705725A (en) | 2019-05-03 |
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| CN201811638656.0A Pending CN109705725A (en) | 2018-12-29 | 2018-12-29 | A kind of heat radiating type polyamide powder coating |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113248958A (en) * | 2021-06-16 | 2021-08-13 | 廊坊中电熊猫晶体科技有限公司 | Heat dissipation electrostatic adsorption powder and preparation method thereof |
| CN115260895A (en) * | 2022-05-30 | 2022-11-01 | 会通新材料(上海)有限公司 | Polyamide powder coating for metal surface coating and preparation method thereof |
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| CN104845487A (en) * | 2015-04-30 | 2015-08-19 | 佛山市禾才科技服务有限公司 | LED heat-dissipating powder coating capable of improving performance of LED housing and preparation method of LED heat-dissipating powder coating |
| CN105949969A (en) * | 2016-06-27 | 2016-09-21 | 广西平果宝信涂料有限公司 | Sand-textured weather-resistant powder coating and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113248958A (en) * | 2021-06-16 | 2021-08-13 | 廊坊中电熊猫晶体科技有限公司 | Heat dissipation electrostatic adsorption powder and preparation method thereof |
| CN115260895A (en) * | 2022-05-30 | 2022-11-01 | 会通新材料(上海)有限公司 | Polyamide powder coating for metal surface coating and preparation method thereof |
| CN115260895B (en) * | 2022-05-30 | 2023-10-10 | 会通新材料(上海)有限公司 | Polyamide powder coating for metal surface coating and preparation method thereof |
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Application publication date: 20190503 |
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