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A kind of water-based steel drum paint, preparation process and use

A preparation process and technology for steel drums, applied in epoxy resin coatings, coatings, devices for coating liquids on surfaces, etc., can solve the problems of long drying time, short storage period, long time consumption, etc. Grinding and retort resistance, improving the efficiency of the reaction, increasing the effect of curing rate

Active Publication Date: 2022-07-12
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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  • A kind of water-based steel drum paint, preparation process and use
  • A kind of water-based steel drum paint, preparation process and use
  • A kind of water-based steel drum paint, preparation process and use

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preparation example Construction

[0059] The invention discloses a preparation process of water-based steel drum paint, comprising the following steps:

[0060] S1: prepare epoxy modified acrylic resin;

[0061] Specifically, the preparation process of the self-made epoxy-modified acrylic resin described in step S1 is as follows:

[0062] S11: Prepare 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, add 18-30 parts of acrylic monomer, and use it as primer after mixing spare;

[0063] 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 make a mixed solution;

[0064] S13: Prepare other materials: additionally prepare 0.2-1.0 parts of tert-butyl peroxide 2-eth...

Embodiment 1

[0072] Including the following processes:

[0073] S11: Prepare primer: prepare 18 parts of butyl glycol ether, dissolve 42 parts of Nantong Xingchen 901 solid epoxy resin into an epoxy solution, add 25 parts of acrylic monomer, and use it as a primer after mixing;

[0074] 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 solvent are mixed to make a mixed solution;

[0075] S13: Prepare other materials: prepare 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, 32.4 parts of ethylene glycol butyl ether as diluent , 2.6 parts of dimethylethanolamine are used as neutralizing agent;

[0076] S14: Stir and mix:

[0077] S141: heating the primer prepared...

Embodiment 2

[0102] S21: Prepare an epoxy solution: heat 4.6 parts of butyl glycol ether and 8.6 parts of Nantong Xingchen 850S epoxy resin to 45°C under stirring, and dissolve it to prepare an epoxy solution;

[0103] S22: Pre-dissolving: dissolve 0.87 parts of 85% phosphoric acid, 0.4 parts of deionized water and 0.8 parts of ethylene glycol butyl ether at room temperature in advance;

[0104] S23: Prepare other materials: prepare 3.7 parts of ethylene glycol butyl ether and 1 part of dimethylethanolamine;

[0105] S24: Phosphating:

[0106] S241: adding the epoxy solution prepared in step S22 to the pre-dissolved material in step S21, heating to 60°C for 1 hour, then heating to 100°C-110°C within 1 hour, and keeping the temperature for 3 hours;

[0107] S242: add 3.3 parts of ethylene glycol butyl ether and cool to 50°C;

[0108] S243: Add 1 part of dimethylethanolamine and 0.4 part of ethylene glycol butyl ether, and stir evenly to prepare a water-soluble epoxy phosphate resin L1.

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Abstract

The invention discloses a water-based steel drum coating, a preparation process and an application. The water-based steel drum coating at least comprises acrylic emulsion, color paste, self-made epoxy phosphate, wetting agent, amino resin, dipropylene glycol methyl ether, fluid Leveling agent, deionized water, and blocked aqueous catalyst. After the water-based steel drum paint in this scheme is formed into a film, the bonding force between the films is good, the surface flatness is high, and there will be no defects such as bubbles and fluidity. It can be directly applied after the first coating without baking The second layer of coating is applied to reduce the coating process. At the same time, the coating has high wear resistance, cooking resistance and adhesion after film formation, which can effectively protect the surface of the steel drum from damage.

Description

technical field [0001] The invention relates to the field, in particular to a water-based steel drum paint, a preparation process and use. Background technique [0002] Steel drums are the most widely used containers for gasoline, diesel and various chemical raw materials in the industrial field. They have the characteristics of large volume, high strength, not easy to break and easy to transport, so they have been recognized by various enterprises. At the same time, in order to clarify the properties of the materials contained in the steel drum and the protection of the steel drum itself, steel drum manufacturers often apply 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 more and more strict. Various environmental protection regulations have strict restrictions on the emission of volatile organic compounds (VOC), organic solvents and the content of v...

Claims

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Application Information

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Patent Type & Authority Patents(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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