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Low-viscosity high-solid environment-friendly coating

A high-solid, environment-friendly technology, applied in the field of coatings, can solve the problems of high molecular weight, achieve good drying performance, convenient construction, and low environmental impact

Inactive Publication Date: 2021-05-14
TIANHENG PAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-solid alkyd resin coatings in foreign countries usually refer to coatings with a solid content greater than 70% and organic solvents less than 20%. It is difficult for conventional alkyd resin processes to ensure that the solid content of coatings reaches this standard, because conventional alkyd resins have long molecular chains. The molecular weight is high, and the viscosity increases with the increase of the molecular weight, so a large amount of solvent must be added to dilute the paint or construction to meet the requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A kind of low-viscosity high-solid environment-friendly paint, composition and preparation method are as follows:

[0017]

[0018] The solid content of the alkyd resin is high, up to 75-78%, viscosity 28S, Grignard tube, short oil resin is less than 2# iron-cobalt, generally 0-1# (vegetable oil<6#), Medium and long oleoresin is less than 6#.

[0019] The low-viscosity high-solid environment-friendly paint of the present invention, the steps are as follows:

[0020] Add titanium dioxide, phthalocyanine blue BGS, precipitated barium sulfate, and JF-38 bentonite to the mixing disperser according to the above formula, mix and disperse fully to 15μm-25μm, then add low-viscosity high-solid alkyd resin, D40 solvent oil, Rare earth dry material and cobalt dry material are evenly mixed and filtered to obtain the coating.

Embodiment 2

[0022] A kind of hyperbranched epoxy primer, composition and preparation method are as follows:

[0023]

[0024] Preparation method is the same as embodiment 1

[0025] The detection data of the technical solutions recorded in two embodiments of the present invention are as follows:

[0026] project result Apply color and look Uniform, no particles, pinhole bubbles Surface dry time 4-5min Working time / h 2 pencil hardness 3H Cross-cut adhesion / level 0 Impact resistance (kg.cm) 100 Flexibility (cylindrical shaft bending degree) 0.8 Gasoline resistance (10h) pass Oil resistant pass Gasoline resistant pass Diesel resistant pass artificial accelerated aging qualified

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Abstract

The invention discloses a low-viscosity high-solid environment-friendly coating. The coating comprises the following components: low-viscosity high-sterol acid resin, 996 titanium dioxide, phthalocyanine blue BGS, precipitated barium sulphate, JF-38 bentonite, D40 solvent oil, a rare earth dry material and a cobalt dry material. The low-viscosity high-solid environment-friendly coating provided by the invention has the characteristics of excellent covering power performance, good drying performance, no coating wrinkling, no sagging, capability of thick coating and the like, is mainly used for coating various substrates such as steel structural parts, industrial machinery and buildings, and has the characteristics of low production cost, convenience in construction, small environmental influence and the like.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to a low-viscosity, high-solids environment-friendly coating. Background technique [0002] High solid coatings, coatings with low relative molecular weight and high solid content. Such as low-solvent polyester coatings, etc. It is characterized by reducing the amount of volatile solvents and the number of construction passes. It is an energy-saving coating. It can be used to paint products in light industry, handcraft, textile, electromechanical, instrumentation, etc. [0003] CN101280055B discloses a high-solid, low-viscosity environment-friendly alkyd resin with low organic solvent content and high solid content and a preparation method thereof. The high-solid and low-viscosity environment-friendly alkyd resin, the acid value of the alkyd resin is ≤10mg KOH / g, the non-volatile content is 63-67%, and the viscosity is 50-110 seconds / 25°C; the alkyd resin The resin is prepared by the fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/08C09D7/61C09D7/63
CPCC08K2003/2241C08K2003/3045C09D167/08C09D7/61C09D7/63C08K13/02C08K3/22C08K3/30C08K3/346C08K5/3467
Inventor 刘道海葛占国信兆刚
Owner TIANHENG PAINT CO LTD
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