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Graphene modified pure polyester powdery coating and preparation method thereof

A graphene modification, polyester powder technology, applied in powder coatings, polyester coatings, anti-corrosion coatings, etc., can solve the deterioration of weather resistance and anti-corrosion performance, increase the use and maintenance costs of coatings, shorten the service life of workpieces, etc. problems, to achieve the effect of improving adhesion, good physical shielding effect, and increasing resistance to neutral salt spray time

Inactive Publication Date: 2018-12-25
CHANGZHOU NANOMEDIA INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in order to solve the problem that existing powder coatings will have poor weather resistance and corrosion resistance due to defects such as low coating film compactness and uneven coating film, which may shorten the service life of the workpiece and To increase the use and maintenance costs of coatings, the invention provides a graphene-modified pure polyester powder coating and a preparation method thereof to solve the above problems

Method used

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  • Graphene modified pure polyester powdery coating and preparation method thereof
  • Graphene modified pure polyester powdery coating and preparation method thereof
  • Graphene modified pure polyester powdery coating and preparation method thereof

Examples

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Effect test

Embodiment 1

[0035] A graphene modified pure polyester powder coating, comprising 62 parts by weight of matrix resin, 4 parts by weight of curing agent, 31 parts by weight of pigments and fillers, 0.3 parts by weight of degassing agent, 0.5 parts by weight of leveling agent, The antioxidant of 0.2 weight part and the graphene of 2 weight parts. Among them, the matrix resin is hydroxyl polyester resin, the type of curing agent is TGIC, the pigment and filler is a combination of carbon black, calcium carbonate and barium sulfate, the degassing agent is benzoin, the type of leveling agent is PV88, and the type of antioxidant It is antioxidant 1010.

[0036] The preparation method of this graphene modified pure polyester powder coating comprises the steps:

[0037] (1) 62 parts by weight of the matrix resin and the graphene of 2 parts by weight are mixed, put into a high-speed stirring pulverizer, stir and pulverize 2min with the speed of 20000rpm, obtain the blend of graphene and matrix resi...

Embodiment 2

[0040] A graphene modified pure polyester powder coating, comprising 57 parts by weight of matrix resin, 3.5 parts by weight of curing agent, 37 parts by weight of pigments and fillers, 0.3 parts by weight of degassing agent, 0.5 parts by weight of leveling agent , the antioxidant of 0.2 weight part and the graphene of 1.5 weight part. Among them, the matrix resin is hydroxyl polyester resin, the type of curing agent is TGIC, the pigment and filler is a combination of titanium dioxide, calcium carbonate and barium sulfate, the degassing agent is benzoin, the type of leveling agent is GLP503, and the type of antioxidant for PEP-36.

[0041] The preparation method of this graphene modified pure polyester powder coating comprises the steps:

[0042] (1) The matrix resin of 57 parts by weight is mixed with the graphene of 1.5 parts by weight, put into a high-speed stirring pulverizer, stir and pulverize 2min with the speed of 20000rpm, obtain the blend of graphene and matrix resi...

Embodiment 3

[0045] A graphene modified pure polyester powder coating, comprising 49 parts by weight of matrix resin, 3.5 parts by weight of curing agent, 46 parts by weight of pigments and fillers, 0.3 parts by weight of degassing agent, 0.5 parts by weight of leveling agent, The antioxidant of 0.2 weight part and the graphene of 1 weight part, wherein, matrix resin is hydroxyl polyester resin, and the model of curing agent is Primid XL-522, and pigment filler is the combination of carbon black, calcium carbonate and barium sulfate, removes The air agent is benzoin, the model of leveling agent is GLP588, and the model of antioxidant is antioxidant 1010.

[0046] The preparation method of this graphene modified pure polyester powder coating comprises the steps:

[0047] (1) The matrix resin of 49 parts by weight and the graphene of 1 weight part are mixed, put into the high-speed stirring pulverizer, stir and pulverize 2min with the speed of 20000rpm, obtain the blend of graphene and matri...

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Abstract

The invention provides a graphene modified pure polyester powdery coating. The graphene modified pure polyester powdery coating comprises matrix resin, a curing agent, pigment and filler, a degassingagent, a leveling agent, an antioxidant and graphene. By the graphene modified pure polyester powdery coating, the charging property of powdery particles is enhanced, during electrostatic spraying, the powder penetrating power on a traditional powdery coating and the adhesiveness to the surface of a workpiece are greatly improved, a coated film with good quality is obtained favorably, furthermore,dust pollution during construction is also relieved, and the using cost is reduced to a certain degree.

Description

technical field [0001] The invention relates to powder coating technology, in particular to a graphene-modified pure polyester powder coating and a preparation method thereof. Background technique [0002] Powder coatings are composed of film-forming resins, pigments, fillers and other functional additives such as plasticizers, antioxidants, matting agents, and leveling agents. They are solvent-free, pollution-free, recyclable, environmentally friendly, energy-saving and resources, etc. Under certain conditions, the powder coating can form a decorative and anti-corrosion coating film on the surface of the workpiece after electrostatic spraying, melting and solidification. The quality of the coating film is often affected by factors such as the coating composition and the powder penetration and adhesion of the powder during electrostatic spraying. Although the coating film of powder coating is relatively thick, in the actual application process, powder coating will have poo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D5/03C09D5/08C09D7/61C09D7/63
CPCC08K2003/2241C08K2003/265C08K2003/3045C08K2201/001C09D5/033C09D5/084C09D7/61C09D7/63C09D167/00C08K13/02C08K3/22C08K3/26C08K3/30C08K5/07C08K3/042C08K3/04
Inventor 周如鸿刘雨杨再兴
Owner CHANGZHOU NANOMEDIA INC LTD
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