Dual anticorrosive waterborne primer suitable for outdoor metal substrate

A water-based primer and metal base technology, applied in the field of coatings, can solve problems such as hidden dangers of life and property safety, achieve good protection, wide application range, and good durability

Inactive Publication Date: 2017-11-17
ZHANGZHOU XIN ZHAN WANG CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Corrosion of metal substrates such as automobiles not only causes huge economic losses, but also brings serious safety hazards to people's lives and property

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A double anti-corrosion water-based primer suitable for outdoor metal substrates, consisting of component A and component B; the weight ratio of component A and component B is: 20:3; component A is composed of the following raw materials in parts by weight : 20 parts of deionized water, 40 parts of water-based self-drying acrylic resin, 20 parts of pigment, 7 parts of graphene oxide, 1 part of coupling agent, 1 part of dispersing agent, 0.3 parts of silicone leveling agent, 6 parts of lotus leaf powder; Component B consists of the following raw materials in parts by weight: 20 parts of polyamide, 8 parts of catalyst, and 40 parts of pyromellitic acid.

[0018] The method of use is: mix water-based self-drying acrylic resin, graphene oxide, lotus leaf powder, pigment, coupling agent, dispersant, silicone leveling agent, and deionized water in proportion, then disperse at 1000r / min for 30 minutes at high speed , and then ground to a fineness of ≤20 μm to obtain component ...

Embodiment 2

[0021] A double anti-corrosion water-based primer suitable for outdoor metal substrates, consisting of component A and component B; the weight ratio of component A and component B is: 20:3; component A is composed of the following raw materials in parts by weight : Composed of the following raw materials by weight: 25 parts of deionized water, 30 parts of water-based modified epoxy resin, 26 parts of pigment, 5 parts of graphene oxide, 2 parts of coupling agent, 0.8 part of dispersant, silicone leveling agent 0.6 parts, 6 parts of lotus leaf powder; component B consists of the following raw materials in parts by weight: 30 parts of polyamide, 5 parts of catalyst, and 50 parts of pyromellitic acid.

[0022] The method of use is: after mixing water-based modified epoxy resin, graphene oxide, lotus leaf powder, pigment, coupling agent, dispersant, silicone leveling agent, and deionized water in proportion, disperse at 1000r / min for 30 min, and then grind to a fineness of ≤20 μm t...

Embodiment 3

[0025] A double anti-corrosion water-based primer suitable for outdoor metal substrates, consisting of component A and component B; the weight ratio of component A and component B is: 20:3; component A is composed of the following raw materials in parts by weight : 30 parts of deionized water, 20 parts of water-based polyester self-drying resin, 30 parts of pigment, 3 parts of graphene oxide, 2 parts of coupling agent, 0.5 parts of dispersing agent, 1 part of silicone leveling agent, 5 parts of lotus leaf powder ; Component B is composed of the following raw materials in parts by weight: 40 parts of polyamide, 3 parts of catalyst, and 60 parts of pyromellitic acid.

[0026] The water-based resin is one or more of water-based acrylic resin, water-based polyester self-drying resin, water-based modified epoxy resin, and water-based amino resin.

[0027] The method of use is: after mixing water-based polyester self-drying resin, graphene oxide, lotus leaf powder, pigment, coupling...

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Abstract

Belonging to the field of paint, the invention in particular relates to a dual anticorrosive waterborne primer suitable for an outdoor metal substrate. The primer is composed of a component A and a component B in a weight ratio of 20:3. The component A consists of the following raw materials by weight: 20-30 parts of deionized water, 20-40 parts of water-based resin, 20-30 parts of pigment, 3-7 parts of graphene oxide, 1-2 parts of a coupling agent, 0.5-1 part of a dispersant, 0.3-1 part of an organosilicon leveling agent, and 5-6 parts of lotus leaf powder. The component B consists of the following raw materials by weight: 20-40 parts of polyamide, 3-8 parts of a catalyst, and 40-60 parts of pyromellitic acid. The primer film can undergo crosslinking rapidly to form a film under an ultralow temperature condition, is good in various tolerance, can tolerate salt mist for 3000h, acid and alkali for 1000h or more and water up to 180d or more.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to a double anti-corrosion water-based primer suitable for outdoor metal substrates. Background technique [0002] Graphene is the smallest and strongest type of nanomaterials. Due to the very low light absorption rate of only 2.3%, the appearance is almost completely transparent. Graphene has excellent physical properties, and its thermal conductivity is higher than that of carbon nanotubes and diamonds, which is 5300W / m K. At room temperature, its electron mobility is greater than 15000cm 2 / vs, over carbon nanotubes or silicon crystals. Graphene is currently the most conductive material among known materials in the world, much lower than copper or silver. [0003] Graphene has a wide range of applications, and coatings are an important part of many graphene applications. With various superior properties, graphene has very broad application prospects in conductive coatings, anti-corros...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D163/00C09D167/00C09D177/00C09D5/08C09D5/16C09D7/12
CPCC09D133/00C09D5/08C09D5/1606C09D163/00C09D167/00C08L77/00C08K3/04
Inventor 张信露谢永立
Owner ZHANGZHOU XIN ZHAN WANG CHEM IND
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