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A kind of water-based quick-drying coil coating based on monodisperse polyacrylic acid resin and preparation method thereof

A polyacrylic resin, acrylic resin technology, applied in anti-corrosion coatings, coatings, etc., to achieve excellent quick-drying performance, good dispersibility, and broad application prospects.

Active Publication Date: 2021-04-09
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For coil steel coatings, in addition to the performance of conventional coatings, it is required to have quick drying and excellent flexibility. It is necessary to achieve a balance between hardness and flexibility, and it is required to have better performance stability. The current water-based coatings There are still deficiencies in this area

Method used

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  • A kind of water-based quick-drying coil coating based on monodisperse polyacrylic acid resin and preparation method thereof
  • A kind of water-based quick-drying coil coating based on monodisperse polyacrylic acid resin and preparation method thereof
  • A kind of water-based quick-drying coil coating based on monodisperse polyacrylic acid resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] 1. Preparation of water-based monodisperse acrylic resin:

[0052] a) Methyl methacrylate monomer, butyl acrylate monomer, and N-methylol acrylamide monomer are mixed to obtain a mixed monomer, which is set aside; acrylic acid monomer is taken, set aside; one-third of the mixed monomer body and one-third of the acrylic monomer, wherein the mass ratio of acrylic monomer: methyl methacrylate monomer: butyl acrylate monomer: N-methylol acrylamide monomer is 15:28:15 : 30, to obtain an acrylic monomer; mix OP-10 and sodium dodecylbenzenesulfonate according to a mass ratio of 5:1 to obtain an emulsifier, which is selected according to a mass ratio of emulsifier to acrylic monomer of 9:100 An appropriate amount of emulsifier is used for later use; according to the mass ratio of the initiator to the total monomer (that is, the total amount of mixed monomer + acrylic acid monomer) is 0.5:100, an appropriate amount of ammonium persulfate (initiator) is taken for later use; The ...

Embodiment 2

[0064] 1. Preparation of water-based monodisperse acrylic resin:

[0065] a) Methyl methacrylate monomer, butyl acrylate monomer, and N-methylol acrylamide monomer are mixed to obtain a mixed monomer, which is set aside; acrylic acid monomer is taken, set aside; one-third of the mixed monomer Body and one-third of the acrylic monomer, wherein the mass ratio of acrylic monomer: methyl methacrylate monomer: butyl acrylate monomer: N-methylol acrylamide monomer is 18:26:17 : 29, to obtain an acrylic monomer; mix OP-10 and sodium dodecylbenzenesulfonate according to a mass ratio of 5:1 to obtain an emulsifier, which is selected according to a mass ratio of emulsifier to acrylic monomer of 8.6:100 An appropriate amount of emulsifier is used for subsequent use; according to the mass ratio of the initiator to the total monomer (that is, the total amount of mixed monomer + acrylic acid monomer) is 0.45:100, an appropriate amount of ammonium persulfate (initiator) is taken for subseque...

Embodiment 3

[0077] 1. Preparation of water-based monodisperse acrylic resin:

[0078] a) Methyl methacrylate monomer, butyl acrylate monomer, and N-methylol acrylamide monomer are mixed to obtain a mixed monomer, which is set aside; acrylic acid monomer is taken, set aside; one-third of the mixed monomer Body and one-third of the acrylic monomer, wherein the mass ratio of acrylic monomer: methyl methacrylate monomer: butyl acrylate monomer: N-methylol acrylamide monomer is 18:27:15 : 31, to obtain an acrylic monomer; mix OP-10 and sodium dodecylbenzenesulfonate according to a mass ratio of 5:1 to obtain an emulsifier, which is selected according to a mass ratio of emulsifier to acrylic monomer of 8.5:100 An appropriate amount of emulsifier is used for subsequent use; according to the mass ratio of the initiator to the total monomer (that is, the total amount of mixed monomer + acrylic acid monomer) is 0.48:100, an appropriate amount of ammonium persulfate (initiator) is taken for subseque...

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Abstract

The invention discloses a water-based quick-drying coil coating based on monodisperse polyacrylic acid resin and a preparation method thereof. The water-based quick-drying coil coating includes varnish and / or color paint, and the varnish includes water-based monodisperse polyacrylic resin, isopropanol, film-forming aid, defoamer, deionized water, anti-flash rust agent, wetting agent Wetting agent, thickener; the color paint includes water-based monodisperse polyacrylic resin, isopropanol, dispersant, defoamer, pigment and filler, anti-flash rust agent, film-forming aid, deionized water, wetting agent , Thickener. The coating of the present invention is not only environmentally friendly and free from solvent pollution, but also has good dispersibility, good film-forming property and high gloss, and has excellent properties such as alkali resistance, corrosion resistance and water resistance, especially excellent fast Dry performance, adhesion, flexibility and hardness have reached a balance between hardness and flexibility, and the comprehensive performance is excellent, suitable for coiled steel.

Description

technical field [0001] The invention relates to a water-based quick-drying coil coating based on monodisperse polyacrylic acid resin and a preparation method thereof, belonging to the technical field of coatings. Background technique [0002] Coatings are playing an increasingly important role in people's lives, and have become an indispensable material for the development of modern society. A large part of the current coatings use toxic and harmful organic substances as solvents and additives in the coating preparation process. During the use process, a large amount of VOC will enter the air. According to statistics, the VOC harmful gas emitted by solvent coatings every year is about It is 4 million tons, which endangers people's health and pollutes the ecological environment. With the introduction of environmental protection policies and the strengthening of people's awareness of environmental protection, organic solvent-based coatings have been largely replaced by water-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D153/00C09D7/20C09D5/08C09D7/61C09D7/63C09D7/65C08F293/00C08F8/32C08F8/24
CPCC08F8/32C08F293/00C08K2003/2241C08L2205/03C08L2205/035C09D5/08C09D153/00C09D7/20C09D7/61C09D7/63C09D7/65C08F8/24C08L75/04C08L83/04C08K5/053C08K3/28C08L33/02C08K13/02C08K3/22
Inventor 王长睿温绍国王继虎吴攸同王光宇孙凯
Owner SHANGHAI UNIV OF ENG SCI
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