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High-resistance environment-friendly water-based coating for inner wall of packaging barrel and preparation method

A water-based coating, an environmentally friendly technology, applied in the field of coatings, to achieve the effect of convenient operation and control, high social value and ecological value, and excellent resistance

Inactive Publication Date: 2021-01-29
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, due to the use of a large amount of diluent water, the water-based coatings on the market need to be further improved in terms of chemical resistance, such as alkali resistance, ethanol resistance, and water resistance.

Method used

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  • High-resistance environment-friendly water-based coating for inner wall of packaging barrel and preparation method
  • High-resistance environment-friendly water-based coating for inner wall of packaging barrel and preparation method

Examples

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preparation example Construction

[0024] A method for preparing a water-based paint for the inner wall of a high-resistance environment-friendly packaging drum, characterized in that it comprises the following steps:

[0025] Step S1. Modified epoxy resin: Add epoxy resin to alcohol ether solvent, stir at 100-110°C until completely dissolved, then cool down to 75-85°C; then keep warm and stir, add modified while stirring After adding the agent, gradually raise the temperature to 115-120°C, heat and stir for 3.5-4 hours, then cool down to 40-60°C and discharge for later use;

[0026] Step S2, disperse the grinding powder: mix the modified epoxy resin, alcohol ether solvent, dispersant, and defoamer prepared in step S1, and stir evenly, then add titanium dioxide and iron yellow powder to it, and stir to disperse 20-40 minutes, then sand mill until the particle size is less than 5 μm, and use it as a slurry for later use;

[0027] Step S3, neutralization and compounding: mix the amine neutralizer and deionized w...

Embodiment 1

[0041] Embodiment 1 provides a kind of preparation method of water-based coating on the inner wall of highly resistant environment-friendly packaging drum, it is characterized in that, comprises the steps:

[0042] Step S1, modified epoxy resin: add epoxy resin to alcohol ether solvent, stir at 100°C until completely dissolved, then cool down to 75°C; After that, gradually raise the temperature to 115°C, heat and stir for 3.5 hours, then cool down to 40°C and discharge for later use;

[0043] Step S2, disperse the grinding powder: mix the modified epoxy resin, alcohol ether solvent, dispersant, and defoamer prepared in step S1, and stir evenly, then add titanium dioxide and iron yellow powder to it, and stir to disperse After 20 minutes, sand mill until the particle size is less than 5 μm, and use it as a slurry for later use;

[0044] Step S3, neutralization and compounding: mix the amine neutralizer and deionized water evenly, add the modified epoxy resin made in step S1, a...

Embodiment 2

[0054] Embodiment 2 provides a water-based paint for the inner wall of a high-resistance environment-friendly packaging barrel, its formula and preparation method are basically the same as in Embodiment 1, the difference is that the epoxy resin, alcohol ether solvent, and modifier described in step S1 The mass ratio is 49:43.5:5.0; the mass ratio of modified epoxy resin, alcohol ether solvent, dispersant, defoamer, titanium dioxide, iron yellow powder described in step S2 is 20.5:11.0:0.38:0.29: 41.5:20.5; the mass ratio of the amine neutralizer, deionized water, modified epoxy resin, and slurry described in step S3 is 1.15:35.5:23.5:29.5.

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Abstract

The invention discloses a preparation method of a high-resistance environment-friendly water-based coating for the inner wall of a packaging barrel. The preparation method comprises the steps of S1, modifying epoxy resin; S2, dispersing and grinding the powder; and S3, neutralizing and compounding. The invention further discloses the high-resistance environment-friendly water-based coating for theinner wall of the packaging barrel, which is prepared according to the preparation method of the high-resistance environment-friendly water-based coating for the inner wall of the packaging barrel. The high-resistance environment-friendly water-based coating for the inner wall of the packaging barrel disclosed by the invention is good in comprehensive performance, excellent in resistance, wear resistance, water resistance, solvent resistance and chemical stability, and strong in adhesive force with a base material.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a water-based coating for the inner wall of a highly resistant and environment-friendly packaging barrel and a preparation method thereof. Background technique [0002] With the gradual improvement of people's living standards, more and more people begin to pursue a high-quality life, have a deeper understanding of environmental issues, and have an increasingly urgent desire to improve the living environment. As a common decoration material, paint is closely related to people's daily life. During the storage and transportation of paint, packaging materials are required, and packaging barrels are the most common one. Paint packaging barrels mainly include plastic barrels and metal barrels; metal barrels include stainless steel barrels, steel barrels, and iron barrels. Manufacturers choose different packaging barrels according to different needs. [0003] The paint c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/61C09D7/63C09D7/65C08G59/14
CPCC08G59/1422C08K2003/2241C08L2205/02C08L2205/035C09D163/00C09D7/61C09D7/63C09D7/65C08L61/20C08L61/06C08K13/02C08K3/22C08K3/346C08K5/42
Inventor 顾峻马园秋
Owner SUZHOU SANXIN PACKAGING MATERIAL TECH CO LTD
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