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A kind of low-voc epoxy primer and preparation method thereof

A technology of epoxy primer and epoxy resin, which is applied in the field of coatings, can solve the problems of heat and humidity resistance, poor temperature resistance, and easy settlement of fillers, etc., and achieve excellent heat and humidity resistance and temperature resistance, high solid content in construction, Effect of Good Air Spray Gun Spray Workability

Active Publication Date: 2020-09-15
GUANGDONG YATU CHEM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problems existing in the existing epoxy primer (such as poor heat and humidity resistance, temperature change resistance, easy sedimentation of fillers, etc.), the invention provides a low-VOC epoxy primer, the epoxy primer solid content High, low VOC emissions, excellent heat and humidity resistance, temperature resistance and salt spray resistance, and good storage stability

Method used

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  • A kind of low-voc epoxy primer and preparation method thereof
  • A kind of low-voc epoxy primer and preparation method thereof
  • A kind of low-voc epoxy primer and preparation method thereof

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Effect test

Embodiment 1～4

[0040] The preparation method of embodiment 1~4 epoxy primer is as follows:

[0041] S1. Preparation of component A: Take the formulated amount of xylene and n-butanol and mix, then add the formulated amount of bisphenol A epoxy resin E51, liquid petroleum resin and Lubrizol 20000 dispersant, stir for 5 minutes, then add the formulated amount A certain amount of organic bentonite, zinc molybdate, aluminum tripolyphosphate and barium sulfate, stirred for 10 minutes, then added the formula amount of allyl polyoxyalkylene epoxy ether, stirred for 10 min, finally added the formula amount of iron oxide black, mica Powder and talcum powder, after stirring for 20 minutes, enter the machine and grind until the fineness is ≤35um, and discharge the material to obtain component A; there is no large amount of air bubbles during the grinding process, and the process is smooth;

[0042] S2. Preparation of component B: Take the formula quantity of xylene and n-butanol and mix, add the formul...

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Abstract

The invention belongs to the technical field of automobile paint, and more specifically relates to a low VOC epoxy priming paint, and a preparation method thereof. The low VOC epoxy priming paint comprises an A component and a B component; the A component comprises bisphenol A type epoxy resin, liquid petroleum resin, a dispersant, black iron oxide, zinc molybdate, aluminium triphosphate, barium sulfate, mica powder, powdered steatile, organic bentonite, an active diluent, xylene and n-butanol; the B component comprises a modified polyamide curing agent, xylene, n-butanol, epoxy silane coupling agent, and an epoxy curing accelerator. The VOC discharge amount of the low VOC epoxy priming paint is lower than 200g / L; the low VOC epoxy priming paint is more green, and is friendly to the environment; construction solid content is high; construction viscosity is moderate; drying time is appropriate; and paint film performance is excellent.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a low-VOC epoxy primer and a preparation method thereof. Background technique [0002] Since the 1980s, automotive coatings have greatly improved in terms of impact resistance, decoration, anti-corrosion agents, and aging resistance. Development, especially the development of high-performance green and environmentally friendly coatings has become an inevitable trend in the industry. [0003] Epoxy primer is a commonly used industrial anti-corrosion coating. It has good corrosion resistance, good chemical resistance, outstanding alkali resistance, good thermal stability and electrical insulation, so it is widely used; but epoxy primer The outdoor weather resistance of the epoxy primer is poor, the paint film is easy to pulverize and lose gloss, and the fullness is poor. It is not suitable for high-quality outdoor paint and decorative paint, and the resistance of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D157/02C09D5/08C09D7/61C09D7/63C09D7/80C08G59/44
CPCC08G59/44C08K2003/3045C08L2201/08C08L2205/035C09D5/08C09D7/61C09D7/63C09D7/80C09D163/00C08L57/02C08L71/02C08L77/00C08K13/02C08K3/24C08K3/30C08K3/34C08K5/5435
Inventor 冯兆均谭立斌方律陈容爱冯嘉伟
Owner GUANGDONG YATU CHEM
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