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High-impact resistance coating used for chemical engineering pumps

A technology of high impact resistance and chemical pumps, applied in polyurea/polyurethane coatings, coatings, pigment pastes, etc., can solve problems such as increased corrosion, poor impact resistance, and shortened life of chemical pumps, reducing the possibility of fracture properties, improve impact strength, and increase cross-linking density

Inactive Publication Date: 2017-09-15
ANHUI LUYUAN PUMP&VALVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chemical pumps not only need to have strong corrosion resistance, but also need to have certain impact resistance when transporting some special materials. However, most of the existing coatings have the problem of poor impact resistance. When transporting special materials, the time Over time, the surface of the coating film of the chemical pump is easily damaged. After the surface of the coating film of the chemical pump is damaged, the coating film cannot continue to protect the chemical pump body. The corrosion of special materials to the chemical pump body increases and the corrosion intensifies. greatly shortened lifespan

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A coating with high impact resistance for chemical pumps, comprising the following steps: it is prepared by mixing color paste, additives and emulsion:

[0017] (1) Preparation of color paste: Put 6 parts of methyltrimethoxysilane, 5 parts of pigment, 3 parts of acetylcholine, 0.6 parts of sodium carboxymethyl cellulose, and 18 parts of deionized water into the dispersion pot by weight, and put them into the dispersion pot at 600r / Stir for 3.5 hours at 1 min, then stir for 30 minutes at 460 r / min, and grind to a fineness of ≤12 μm with a sand mill to obtain a color paste;

[0018] (2) Preparation of additives: Mix fresh kelp, purple cocklegrass leaves, and Chlorophytum leaves in a mass ratio of 5:4:2, wash, grind, and grind to obtain a slurry, and add deionized water that is 8 times the mass of the slurry, Add cellulase with 1% slurry mass, heat to 40°C, stir at 150r / min for 2 hours, then add brewer’s yeast with 1.2% slurry mass, use 300W ultrasonic treatment for 1.5 h...

Embodiment 2

[0026] A coating with high impact resistance for chemical pumps, comprising the following steps: it is prepared by mixing color paste, additives and emulsion:

[0027] (1) Preparation of color paste: Put 8 parts of methyltrimethoxysilane, 7 parts of pigment, 6 parts of acetylcholine, 1.2 parts of sodium carboxymethyl cellulose, and 20 parts of deionized water into the dispersion pot by weight, and put them into the dispersion pot at 600r / Stir for 3.5 hours at 1 min, then stir for 30 minutes at 460 r / min, and grind to a fineness of ≤12 μm with a sand mill to obtain a color paste;

[0028] (2) Preparation of additives: Mix fresh kelp, purple cocklegrass leaves, and Chlorophytum leaves in a mass ratio of 5:4:2, wash, grind, and grind to obtain a slurry, and add deionized water that is 8 times the mass of the slurry, Add cellulase with a mass of 1% of the slurry, heat to 46°C, stir at a speed of 150r / min for 2 hours, then add beer yeast with a mass of 1.2% of the slurry, use 300W...

Embodiment 3

[0036] A coating with high impact resistance for chemical pumps, comprising the following steps: it is prepared by mixing color paste, additives and emulsion:

[0037] (1) Preparation of color paste: Put 7 parts of methyltrimethoxysilane, 6 parts of pigment, 5 parts of acetylcholine, 0.8 parts of sodium carboxymethyl cellulose, and 19 parts of deionized water into the dispersion pot by weight, and put them into the dispersing pot at 600r / Stir for 3.5 hours at 1 min, then stir for 30 minutes at 460 r / min, and grind to a fineness of ≤12 μm with a sand mill to obtain a color paste;

[0038] (2) Preparation of additives: Mix fresh kelp, purple cocklegrass leaves, and Chlorophytum leaves in a mass ratio of 5:4:2, wash, grind, and grind to obtain a slurry, and add deionized water that is 8 times the mass of the slurry, Add cellulase with 1% slurry mass, heat to 42°C, stir at 150r / min for 2 hours, then add beer yeast with 1.2% slurry mass, use 300W ultrasonic treatment for 1.5 hours, ...

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Abstract

The invention discloses a high-impact resistance coating used for chemical engineering pumps. The coating is prepared through mixing a color paste, an assistant and an emulsion. A lot of test researches show that the synergism of the prepared assistant, the color paste and the emulsion makes a solidified paint film form a cross-linked build structure which is an interpenetrating network, and the assistant makes easy moving chain segments or groups having secondary conversion at a low temperature easily contained in the smeared structure, so the chain segments and the groups respectively absorb parts of impact force when bearing external impact force in order to make the external force insufficient to destroy the paint film.

Description

technical field [0001] The invention belongs to the technical field of coatings for chemical pumps, in particular to a coating with high impact resistance for chemical pumps. Background technique [0002] Chemical pumps are a general term for mechanical chemical pumps used to transport liquids and increase their pressure. They can meet the requirements of high temperature resistance, low temperature resistance, corrosion resistance, wear resistance, no leakage or less leakage, and pumps that can transport liquids in a critical state. These pumps are collectively referred to as chemical pumps. Chemical pumps not only need to have strong corrosion resistance, but also need to have certain impact resistance when transporting some special materials. However, most of the existing coatings have the problem of poor impact resistance. When transporting special materials, the time Over time, the surface of the coating film of the chemical pump is easily damaged. After the surface of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/02C09D7/12C09D17/00
CPCC09D175/04C08K2003/2241C08L2205/035C08L2205/04C08L2312/00C09D5/024C09D5/028C09D17/00C08L83/04C08L23/06C08L1/286C08K13/02C08K5/41C08K5/098C08K3/22C08K5/23
Inventor 凤元军
Owner ANHUI LUYUAN PUMP&VALVE CO LTD
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