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Water-based steel drum coating as well as preparation process and application thereof

A water-based, steel drum technology, applied in epoxy resin coatings, coatings, and devices for coating liquid on the surface, can solve problems such as long drying time, poor flatness and bonding force, and high energy consumption, and achieve high Abrasion resistance and retort resistance, rapid baking improvement, high surface flatness effect

Active Publication Date: 2021-09-17
SUZHOU SANXIN PACKAGING MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these traditional baking varnishes not only have the disadvantages of high temperature, long drying time, high energy consumption, poor toughness, etc., but also have a short storage period; traditional baking varnishes mostly use organic solvents as solvents, which meets the increasingly stringent environmental protection requirements It is obviously unfavorable, and the existing protective paint for steel drums often has relatively weak adhesion to the metal surface, and is prone to peeling off after being hit. Therefore, the protection time for steel drums is generally relatively short. In order to achieve the protective effect, it is often necessary to apply multiple layers of paint. Due to the poor flatness and bonding force of the existing paint, it is often necessary to bake after each paint coating to avoid air bubbles caused by uneven baking. It is not energy-saving enough and takes a long time. At the same time, the current method of coating the exterior coating of steel drums is mainly to use the method of making the drum first and then spraying. However, spray coating is prone to uneven coating and wastes paint. And other issues

Method used

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  • Water-based steel drum coating as well as preparation process and application thereof
  • Water-based steel drum coating as well as preparation process and application thereof
  • Water-based steel drum coating as well as preparation process and application thereof

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preparation example Construction

[0055] The invention discloses a preparation process of water-based steel drum paint, comprising the following steps:

[0056] S1: Preparation of epoxy-modified acrylic resin;

[0057] Specifically, the preparation process of self-made epoxy-modified acrylic resin described in step S1 is as follows:

[0058] S11: Preparation of primer: prepare 15-20 parts of ethylene glycol butyl ether, dissolve 35-45 parts of Nantong Xingchen 901 solid epoxy resin into an epoxy solution, then add 18-30 parts of acrylic acid monomer, mix it as a primer spare;

[0059] S12: Preparation of monomer mixed solution: 17-30 parts of styrene, 45-65 parts of butyl acrylate, 5-15 parts of methyl methacrylate, 1-5 parts of hydroxypropyl acrylate, 3-5 parts of peroxide 2 - tert-butyl ethylhexanoate (TBPO) initiator and 10-20 parts of propylene glycol methyl ether solvent are mixed to form a mixed solution;

[0060] S13: Prepare other materials: 0.2-1.0 parts of tert-butyl peroxide 2-ethylhexanoate (TBP...

Embodiment 1

[0068] Including the following processes:

[0069] S11: Preparation of primer: prepare 18 parts of ethylene glycol butyl ether, dissolve 42 parts of Nantong Xingchen 901 solid epoxy resin into an epoxy solution, add 25 parts of acrylic acid monomer, mix and use as a primer for later use;

[0070] S12: Preparation of monomer mixed solution: 24 parts of styrene, 55 parts of butyl acrylate, 10 parts of methyl methacrylate, 3 parts of hydroxypropyl acrylate, 4.2 parts of tert-butyl peroxide 2-ethylhexanoate initiator And 12 parts of propylene glycol methyl ether solvents are mixed to make mixed solution;

[0071] S13: Prepare other materials: 0.4 parts of tert-butyl peroxide 2-ethylhexanoate initiator, 0.8 parts of propylene glycol methyl ether solution as supplementary initiator, 10 parts of n-butanol, and 32.4 parts of ethylene glycol butyl ether as diluent , 2.6 parts of dimethylethanolamine as a neutralizing agent;

[0072] S14: stirring and mixing:

[0073] S141: heat up t...

Embodiment 2

[0098] S21: Preparation of epoxy solution: heat 4.6 parts of ethylene glycol butyl ether and 8.6 parts of Nantong Xingchen 850S epoxy resin to 45°C under stirring, and dissolve to make an epoxy solution;

[0099] S22: Pre-dissolving: 0.87 parts of 85% phosphoric acid, 0.4 parts of deionized water and 0.8 parts of ethylene glycol butyl ether are pre-dissolved at room temperature;

[0100] S23: Prepare other materials: prepare 3.7 parts of ethylene glycol butyl ether and 1 part of dimethylethanolamine;

[0101] S24: Phosphating:

[0102] S241: Add the epoxy solution prepared in step S22 to the pre-dissolved material in step S21, raise the temperature to 60°C for 1 hour, then raise the temperature to 100°C-110°C within 1 hour, and keep the temperature for 3 hours;

[0103] S242: Cool to 50°C after adding 3.3 parts of ethylene glycol butyl ether;

[0104] S243: Add 1 part of dimethylethanolamine and 0.4 part of ethylene glycol butyl ether, and stir evenly to prepare water-solubl...

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Abstract

The invention discloses a water-based steel drum coating, a preparation process and application, and the water-based steel drum coating at least comprises an acrylic emulsion, color paste, self-made epoxy phosphate, a wetting agent, amino resin, dipropylene glycol monomethyl ether, a flatting agent, deionized water and a closed water-based catalyst. After the water-based steel drum coating in the scheme forms films, the binding force between the films is better, the surface flatness is higher, the defects of bubbles, leveling and the like are avoided, a second layer of coating can be directly coated without baking after the coating is coated for the first time, the coating process is reduced, and meanwhile, the coating has higher wear resistance, steaming resistance and adhesive force after the coating forms the films, the surface of the steel drum can be effectively protected from being damaged.

Description

technical field [0001] The invention relates to the field, in particular to a water-based steel drum coating, a preparation process and an application. Background technique [0002] Steel drum is a container used to hold gasoline, diesel and various chemical raw materials in the industrial field today. It has the characteristics of large volume, high strength, unbreakable and convenient transportation, so it has been recognized by various enterprises. At the same time, in order to be able to clarify the nature of the materials contained in the steel drum and protect the steel drum itself, steel drum manufacturers often paint protective paint on the surface of the steel drum. [0003] As people pay more and more attention to environmental issues, environmental protection regulations are becoming increasingly strict. Various environmental protection regulations have strict restrictions on the emission of volatile organic compounds (VOC), organic solvents, and various heavy met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D163/00C09D7/63C09D7/65C08G59/14B05D1/36B05D3/02B05D3/10B05D7/14B05D7/24
CPCC09D133/04C09D7/63C09D7/65C08G59/1422B05D7/14B05D7/24B05D3/102B05D3/0254B05D7/54B05D1/36B05D2502/00B05D2320/00B05D2504/00C08L2205/035B05D2420/01B05D2420/02C08L63/00C08K5/17Y02P70/10
Inventor 马园秋顾峻
Owner SUZHOU SANXIN PACKAGING MATERIAL TECH CO LTD
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