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A kind of antistatic powder coating and preparation method thereof

A powder coating and anti-static technology, applied in powder coatings, conductive coatings, polyester coatings, etc., can solve the problems of poor filler acceptance, reduced weather resistance, and insufficient dispersion of anti-static powder coating raw materials.

Active Publication Date: 2022-06-17
广东华江粉末科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] Based on this, in order to solve the problems in the prior art that the raw materials of the antistatic powder coating cannot be fully dispersed, the fillers have poor receptivity, the antistatic performance of the coating is reduced, and the weather resistance is reduced, the present invention provides an antistatic powder coating, The specific technical scheme is as follows:

Method used

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  • A kind of antistatic powder coating and preparation method thereof
  • A kind of antistatic powder coating and preparation method thereof
  • A kind of antistatic powder coating and preparation method thereof

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preparation example Construction

[0044] In one of the embodiments, a preparation method of the antistatic powder coating is also provided, the method comprising the following steps:

[0045]Put the hardening filler in the mixing kettle, then add the second auxiliary, after fully mixing and evenly placing it in a medium water bath at a temperature of 65℃-85℃, after vibrating for 8min-15min, extrude under the pressure of 45MPa-55MPa treatment, and finally obtain mixture A through the first crushing treatment;

[0046] Continue to add carboxyl-terminated polyester resin A, carboxyl-terminated polyester resin B, triglycidyl isocyanurate, dispersant, conductive carbon black, carbon nanotubes, hardening filler, leveling agent, 1. Auxiliary, brightener, benzoin, polytetrafluoroethylene and pigment, fully mixed to obtain mixture B;

[0047] The mixture B is subjected to melt extrusion treatment, second crushing treatment and pulverizing treatment to obtain an antistatic powder coating.

[0048] In one embodiment, t...

Embodiment 6-8

[0087] A kind of preparation method of antistatic powder coating in embodiment 6-8, comprises the following steps:

[0088] Place the modified wax and the carboxylic acid derivative in a mixing kettle, and stir at a stirring speed of 1000 r / min for 15 minutes to obtain a uniformly dispersed second auxiliary agent;

[0089] Place the hardening filler in the mixing kettle, then add the second additive, and after it is fully mixed and evenly placed in a medium water bath at a temperature of 65°C, after vibrating for 15min, extrude at 45MPa and a temperature of 85°C, and finally The mixture A is obtained through the first crushing treatment;

[0090] Continue to add carboxyl-terminated polyester resin A, carboxyl-terminated polyester resin B, triglycidyl isocyanurate, dispersant, conductive carbon black, carbon nanotubes, hardening filler, leveling agent, 1. Auxiliary, brightener, benzoin, polytetrafluoroethylene and pigment, fully mixed to obtain mixture B;

[0091] The mixture...

Embodiment 9-11

[0103] Place 20g of modified wax and 3g of acetic anhydride in a mixing kettle, and stir at a stirring speed of 800r / min for 15min to obtain a uniformly dispersed second auxiliary agent;

[0104] Place the hardening filler in the mixing kettle, then add the second additive, and after it is fully mixed and evenly placed in a medium water bath at a temperature of 75°C, after vibrating for 10 minutes, extrude at a temperature of 50MPa and a temperature of 75°C, and finally The mixture A is obtained through the first crushing treatment;

[0105] Continue to add carboxyl-terminated polyester resin A, carboxyl-terminated polyester resin B, triglycidyl isocyanurate, dispersant, conductive carbon black, carbon nanotubes, hardening filler, leveling agent, and the first into the mixing kettle. 1. Auxiliary, brightener, benzoin, polytetrafluoroethylene and pigment, fully mixed to obtain mixture B;

[0106] The mixture B is melt-extruded. The main machine speed of the melt-extrusion proc...

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Abstract

The invention provides an antistatic powder coating, comprising carboxyl-terminated polyester resin A, carboxyl-terminated polyester resin B, triglycidyl isocyanurate, dispersant, conductive carbon black, carbon nanotubes, hardening fillers, fluid Leveling agent, first auxiliary agent, second auxiliary agent, brightener, benzoin, polytetrafluoroethylene and pigment components; the present invention helps to improve the The degree of dispersion and compatibility of hardening fillers in the powder coating system, combined with polyacrylate as a surface additive, can significantly improve the leveling and defoaming effects of the powder coating system, synergistically, and the prepared powder coating is antistatic The performance is obviously improved; in the present invention, carbon nanotubes and carbon black exist in the powder coating system in the form of fine particle reinforcement phase, and under the interaction of components, the weather resistance of the coating is still excellent after long-term use.

Description

technical field [0001] The invention relates to the field of preparation of powder coatings, in particular to an antistatic powder coating and a preparation method thereof. Background technique [0002] Static electricity is generated when two substances are in close contact and then separated, one substance transfers electrons to another substance and becomes positively charged, and the other substance receives electrons and becomes negatively charged. Although the amount of static electricity is not large, due to its high voltage, it is easy to generate electrostatic sparks and cause explosions due to discharge, and static electricity will also affect the normal operation of daily equipment. The powder coating can be sprayed on some daily equipment to form a coating with protection, decoration and special functions on the surface of the equipment, but the coating formed by the powder coating in the prior art cannot play an excellent antistatic effect, and is often affected...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/24C09D5/03C09D167/00C09D7/61C09D7/47C09D7/63C09D7/65
CPCC09D5/24C09D5/033C09D5/037C09D167/00C08K2201/011C08K2201/001C08L2201/04C08L67/00C08L33/04C08L91/06C08K3/04C08K3/041C08K3/36
Inventor 魏育福莫剑辉蔡劲树刘飞洪贤波
Owner 广东华江粉末科技有限公司
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