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Antistatic powder coating and preparation method thereof

A powder coating and anti-static technology, applied in powder coatings, conductive coatings, anti-corrosion coatings, etc., can solve the problems of anti-static powder without specific solutions, high material cost, affecting powder coating rate and decoration, etc. , to avoid oxidation and structural damage, reduce low utilization rate, and ensure the effects of electrical conductivity and mechanical properties

Pending Publication Date: 2021-04-30
WESDON RIVER POWDER PAINT SCI RES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention mainly achieves the conductive effect of the coating film through internal extrusion and external addition of metal and metal oxide powder, and the volume resistivity of the prepared coating film can reach 10 4 Ω·cm, but the addition of a large amount of metal conductive materials is likely to affect the powder coating rate and decoration of the powder coating, and the material cost is also very high
[0011] To sum up, in the field of powder coating preparation, there are still many practical problems to be dealt with in the practical application of antistatic powder, and no specific solutions have been proposed.

Method used

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  • Antistatic powder coating and preparation method thereof

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preparation example Construction

[0057] Among the present invention, for the preparation method of described antistatic powder coating, comprise following operation steps:

[0058] a. Put the raw materials in the A component into the high-speed mixer according to the mass percentage to mix to obtain the premix; the speed of the high-speed mixer is 1500-2500r / min, and the high-speed mixing time is 2 -15min;

[0059] b. Add the premixed material in step a into a high-temperature extruder, melt and knead, cool and tablet to make a tablet material, and then finely pulverize the tablet material, and sieve the particle size to D50 It is 15-50μm powder particles, which is made into the powder of component A;

[0060] c. After mixing the component A powder and the component B material prepared in step b according to the weight ratio of 200-20:1, put them into the micropowder agglomeration equipment; obtain agglomerates; micronize the agglomerates, Sieve until the D50 is 20-50μm powder particles, which is made into ...

Embodiment 1

[0063] The antistatic powder coating of the present embodiment is made by following A, B component by weight percentage 100:1:

[0064] Described A component comprises the raw material composition of following weight percent:

[0065] Resin: 60.0%

[0066] Curing agent: 3.0%

[0067] Leveling agent: 1.0%

[0068] Defoamer: 0.5%

[0069] Coupling agent: 2.0%

[0070] Booster: 0.3%

[0071] Other additives: 2.0%

[0072] Pigments and fillers: 31.2%

[0073] Described B component comprises the raw material composition of following weight percent:

[0074] Composite conductive additive: 85.0%

[0075] Organic acid modified stabilizer: 12.5%

[0076] Coupling agent: 2.0%

[0077] Dispersant: 0.5%

[0078] Wherein, the resin is an epoxy resin; the curing agent includes substituted dicyandiamide; the coupling agent includes a modified siloxy-modified polymer; the composite conductive additive is a graphene modified conductive additive The mass ratio of the alignment agent...

Embodiment 2

[0084] The antistatic powder coating of the present embodiment is made by following A, B component by weight percentage 200:1:

[0085] Described A component comprises the raw material composition of following weight percent:

[0086] Resin: 80.0%

[0087] Curing agent: 6.0%

[0088] Leveling agent: 1.2%

[0089] Defoamer: 0.3%

[0090] Coupling agent: 1.0%

[0091] Booster: 0.5%

[0092] Other additives: 2.5%

[0093] Pigments and fillers: 8.5%

[0094] Described B component comprises the raw material composition of following weight percent:

[0095] Composite conductive additive: 40.0%

[0096] Organic acid modified stabilizer: 55.0%

[0097] Coupling agent: 3.0%

[0098] Dispersant: 2.0%

[0099] Wherein, the resin is a carboxyl-terminated polyester resin; the curing agent is triglycidyl isocyanurate; the coupling agent is a modified organosiloxane polymer; the composite conductive additive is graphene The mass ratio of the modified conduction aid to the alignme...

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Abstract

The invention relates to the field of preparation methods of high polymer materials, and particularly discloses an antistatic powder coating and a preparation method thereof. The coating is prepared from a component A and a component B according to the weight percentage of 200-20: 1. wherein the component A is prepared from the following raw materials in percentage by weight: 30.0-75.0 percent of resin; 3.0-30.0% of a curing agent; 0.8-1.5% of a leveling agent; 1.0-5.0% of a coupling agent; 0.3-1.0% of a defoaming agent; 0.2-1.0% of an electricity increasing agent; 0.5-5.0% of other auxiliary agents; and 10.0-45.0% of a pigment and filler; wherein the sum of the weight percentages of the raw materials is 100%. The component B is prepared from the following raw materials in percentage by weight: 40.0-85.0 percent of a composite conductive additive; 10.0-58.0% of an organic acid modified stabilizer; 0.5-8.0% of a coupling agent; and 0.2-5.0% of a dispersing agent; wherein the sum of the weight percentages of the components is 100%. The invention also discloses a preparation method for preparing the antistatic powder coating. According to the antistatic powder coating disclosed by the invention, the application efficiency of a conductive material can be improved, the cost of the coating is reduced, and the corrosion resistance and the conductive stability of a coating layer are remarkably improved.

Description

technical field [0001] The invention relates to the field of preparation of polymer materials, in particular to an antistatic powder coating and a preparation method thereof. Background technique [0002] Antistatic powder coating is a functional coating with certain current conduction and static elimination. It has the properties of electromagnetic shielding, static elimination and corrosion resistance. It is widely used in the fields of electronic appliances, petrochemical, textile and aviation. [0003] At present, antistatic coatings are generally divided into two types: additive type and intrinsic type. The technology of intrinsic type antistatic coatings is not yet mature, and the antistatic coatings commonly used in the market are generally additive type coatings. According to the conductive infinite network chain theory of composite conductive polymer proposed by F Butch: Additive antistatic coating is to add a certain amount of conductive material to the non-conduct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D167/00C09D127/12C09D133/04C09D5/03C09D5/24C09D5/08
CPCC09D163/00C09D167/00C09D127/12C09D133/04C09D5/033C09D5/24C09D5/08C08K2201/011C08L2205/035C08K2003/2227C08L2205/025C08L79/02C08K3/042C08K3/041C08K9/04C08K3/34C08L29/14C08L27/12C08L79/04C08L23/0853C08K3/36C08L67/00C08L65/00C08L77/00C08K3/22C08L71/02C08L1/14
Inventor 魏育福黄焯轩吴严明朱新平
Owner WESDON RIVER POWDER PAINT SCI RES CO LTD
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