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Nanometer oxidized graphene modified epoxy type powder paint and preparation method thereof

A technology of epoxy resin and powder coating, which is applied in the field of coatings, can solve problems such as unsatisfactory dispersion effect, influence on paint film performance, and influence on powder coating electrostatic coating performance, so as to improve working environment conditions, increase dispersion effect, and mechanical strength high effect

Inactive Publication Date: 2017-05-31
CHANGZHOU IND TECH RES INST OF ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the unsatisfactory dispersion of graphene in the polymer, it will affect the performance of the paint film
In addition, graphene has conductive properties, which will affect the performance of powder coating electrostatic coating

Method used

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  • Nanometer oxidized graphene modified epoxy type powder paint and preparation method thereof
  • Nanometer oxidized graphene modified epoxy type powder paint and preparation method thereof
  • Nanometer oxidized graphene modified epoxy type powder paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A nano-graphene oxide modified epoxy resin powder coating, firstly, 10 parts of graphene oxide, 30 parts of polyvinylpyrrolidone and 60 parts of bisphenol A epoxy resin are ground with a high-speed dispersant until the fineness reaches 35 microns Next, the graphene oxide pre-dispersed slurry was obtained. According to the weight ratio, 10 parts of graphene oxide predispersed slurry, 30 parts of bisphenol A epoxy resin, 40 parts of polyester resin, 5 parts of precipitated barium sulfate, 3 parts of fumed silica, ethylene glycol bis-trimellitic anhydride 5 parts, 3 parts of dibutyl phthalate, 1 part of polybutyl acrylate, 1 part of light stabilizer Tinuvin144, 1 part of iron black and 1 part of iron red are added to a twin-screw extruder for blending and extrusion. Finally, tableting, grinding, and separation are carried out to obtain finished products. Measure the central control indicators of nano-graphene oxide modified epoxy resin powder coatings, and pack them after...

Embodiment 2

[0032] A nano-graphene oxide modified epoxy resin powder coating, firstly, 20 parts of graphene oxide, 20 parts of DISPERBYK-130 and 60 parts of bisphenol A epoxy resin are ground with a high-speed dispersant until the fineness reaches 35 microns Next, the graphene oxide pre-dispersed slurry was obtained. According to the weight ratio, 1 part of graphene oxide predispersed slurry, 50 parts of bisphenol F epoxy resin, 30 parts of polyester resin, 1 part of light calcium carbonate, 2 parts of talcum powder, 5 parts of precipitated silica, 8 parts of dicyandiamide, 2 parts of dioctyl sebacate, 0.5 part of polylauryl acrylate and 0.5 part of a mixture of high-efficiency phosphite and phenolic antioxidant are added to a twin-screw extruder for blending and extrusion. Finally, tableting, grinding, and separation are carried out to obtain finished products. Measure the central control indicators of nano-graphene oxide modified epoxy resin powder coatings, and pack them after passing...

Embodiment 3

[0034] A nano-graphene oxide modified epoxy resin powder coating, firstly, 30 parts of graphene oxide, 20 parts of BYK-9076 and 50 parts of bisphenol F epoxy resin are ground with a high-speed dispersant until the fineness reaches 35 microns Next, the graphene oxide pre-dispersed slurry was obtained. According to the weight ratio, 5 parts of graphene oxide predispersed slurry, 30 parts of bisphenol F epoxy resin, 30 parts of polyester resin, 2 parts of mica powder, 8 parts of kaolin, 8 parts of ultrafine silica gel, 10 parts of tetramethoxymethylene glycoluril, 3 parts of dibutyl phthalate, 1 part of polyacrylate-2-ethylhexyl ester, 1 part of light stabilizer Tinuvin144, 0.5 parts of carbon black and 0.5 parts of ultramarine blue Twin-screw extruder blending extrusion. Finally, tableting, grinding, and separation are carried out to obtain finished products. Measure the central control indicators of nano-graphene oxide modified epoxy resin powder coatings, and pack them after...

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Abstract

The invention relates to a nanometer oxidized graphene modified epoxy type powder paint and a preparation method thereof, and relates to the technical field of production of power paint. The nanometer oxidized graphene modified epoxy type powder paint consists of the following components in parts by mass: 1-10 parts of oxidized graphene pre-dispersed starch, 30-70 parts of epoxy resin, 20-70 parts of polyester resin, 5-12 parts of a filling, 3-8 parts of white carbon black, 3-10 parts of a high temperature curing agent, 2-3 parts of a plastifier, 0.1-1 part of a flatting agent, 0.1-1 part of a thermal and light stabilizer and 0-4 parts of pigment. The made paint disclosed by the invention does not contain toxicity, does not contain solvents or volatile toxic substances, meets environmental-friendly requirements, is high in utilization of raw materials, simple in technology, and low in cost, and is suitable for mass production. After the prepared paint is sprayed, a compact coating is formed, so that good performance of the epoxy resin is maintained; besides, the paint disclosed by the invention has good corrosion resistance, good penetration resistance, good mechanical properties and good abrasion resistance.

Description

technical field [0001] The invention relates to coating technology, in particular to a nanometer graphene oxide modified epoxy resin powder coating and a preparation method thereof. Background technique [0002] At present, about 30% of the steel in the world corrodes every year, and 10% of the steel becomes useless rust, and the annual economic loss due to corrosion is as high as 700 billion US dollars. Metal corrosion not only brings economic losses to human beings, but also is not conducive to the protection of natural resources and the environment, and sometimes even endangers personal safety. In order to prevent and slow down corrosion, many anti-corrosion methods have been developed in production practice and scientific experiments. Among them, paint protection is the most convenient and economical, so it has been widely used. [0003] Chinese patent CN102604533A discloses an anti-corrosion coating based on polyaniline and graphene composite material and its preparat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D163/00C09D5/03C09D5/08C09D7/12
CPCC09D167/00C08K2201/011C08K2201/014C08L2205/025C08L2205/035C09D5/033C09D5/08C09D163/00C08L63/00C08L33/08C08K13/06C08K9/00C08K3/04C08K2003/3045C08K3/36C08K5/12C08L67/00C08K2003/265C08K3/34C08K5/11C08K3/346
Inventor 姚伟周如鸿
Owner CHANGZHOU IND TECH RES INST OF ZHEJIANG UNIV
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