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Low temperature resistant anti-crack powder coating used for water pumps and preparation method thereof

A technology of powder coatings and low temperature resistance, applied in powder coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve the problems of poor bonding ability between coatings and metal substrates, poor low temperature resistance, poor impact resistance, etc., to achieve Excellent cavitation resistance, strong binding force and high compatibility

Inactive Publication Date: 2016-04-13
TONGLING JINGWEI FLUID SCI & TECH
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Problems solved by technology

However, the coating formed by the existing powder coating has poor bonding ability to the metal substrate, high brittleness, poor impact resistance, and easy cracking. At the same time, the low temperature resistance is not good, and the performance declines in a low temperature environment, which limits the powder to a certain extent. Application of Coatings in Pump Surface Protection

Method used

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  • Low temperature resistant anti-crack powder coating used for water pumps and preparation method thereof

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Embodiment Construction

[0015] A kind of low-temperature resistant anti-cracking water pump powder coating, it is made by the following raw materials of weight part:

[0016] Bisphenol A epoxy resin 40, cellulose acetate butyrate 3, acetyl tributyl citrate 1, bentonite 20, talc powder 5, styrene-acrylic emulsion 3, zirconium sol 1.5, aluminum sol 4, water-based polyurethane emulsion 3, phenol Class curing agent 3, film-forming aid 3;

[0017] The solid content of the zirconium sol is 20%, the solid content of the aluminum sol is 20%, the solid content of the aqueous polyurethane emulsion is 40%, and the solid content of the styrene-acrylic emulsion is 50%;

[0018] The film-forming aid is made of the following raw materials in parts by weight: rosin 2, epoxidized soybean oil 5, acrylic acid 3, glyceryl monostearate 0.5, silane coupling agent KH-5600.3; the preparation method of the film-forming aid First, melt and blend rosin, epoxidized soybean oil and glyceryl monostearate at 160°C, then adjust th...

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Abstract

The invention discloses a low temperature resistant anti-crack powder coating used for water pumps. The powder coating is prepared from the following raw materials in parts by weight: 40-50 parts of bisphenol A type epoxy resin, 3-5 parts of cellulose acetate butyrate, 1-2 parts of acetyl tributyl citrate, 20-30 parts of bentonite, 5-10 parts of talcum powder, 3-5 parts of styrene-acrylic emulsion, 1.5-2.5 parts of zirconium sol, 4-6 parts of aluminium sol, 3-5 parts of waterborne polyurethane emulsion, 3-5 parts of a phenolic curing agent and 3-5 parts of a film-forming additive. The powder coating has the advantages that the powder coating used for water pumps has excellent cavitation and corrosion resistance; formed coats have strong binding capacities with metallic matrices, are not easy to peel off or crack, also have good low temperature resistance, are suitable to use in cold regions and have a wide range of application and good durability.

Description

technical field [0001] The invention relates to the technical field of powder coatings, in particular to a low-temperature-resistant and crack-resistant powder coating for water pumps and a preparation method thereof. Background technique [0002] Pump is a kind of general-purpose machinery with various types and huge quantity, and it is widely used in electric power, water conservancy and other fields. The pump body bears the impact of high-speed airflow and liquid droplets for a long time during operation, and the pump body itself has poor cavitation and abrasion resistance, which greatly affects the operation stability and working life of the pump. Coating protection with paint is a common means of surface protection for pump bodies. As a new type of solvent-free coating, powder coating has the characteristics of no solvent, no pollution, environmental protection, simple coating process, and its excellent coating performance is widely used. However, the coating formed b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/12C09D5/03C09D5/08
CPCC09D163/00C08L2205/035C09D5/033C09D5/08C09D7/62C09D7/65
Inventor 吴寿涛
Owner TONGLING JINGWEI FLUID SCI & TECH
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