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A kind of preparation method of waterborne two-component system acrylic resin with interpenetrating network structure

An interpenetrating network structure, acrylic resin technology, applied in the polymer field, can solve the problems of low adhesion, insufficient hardness, insufficient chemical resistance, and inability to meet the hardness development, achieve good chemical resistance, promote comprehensive water-based, fast The effect of hardness development

Active Publication Date: 2022-04-08
科思创树脂制造(佛山)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional 2K resins contain a large amount of solvents, which cannot meet the increasingly stringent environmental protection requirements under the general trend of comprehensive water-based
At the same time, most of the current water-based two-component system resins are insufficient in hardness, hardness development and chemical resistance, and cannot meet the requirements of high-end woodware
Patent CN106318091 A new type of resin for water-based two-component organic-inorganic hybrid coatings and its preparation method, through inorganic modification, while improving the performance of ordinary two-component materials such as aging resistance, water resistance, and wear resistance, it ensures organic-inorganic composite The stability of the material in water, water can be used as a diluent to further reduce the VOC of the system, but the hardness of the coating is poor, and it cannot solve the problem of water-based two-component self-drying coatings
Patent CN108624240 Normal temperature ketone hydrazine self-crosslinking acrylic resin aqueous dispersion and its preparation method and application, through self-crosslinking structure to further improve the hardness and rigidity of the resin, but this method is mainly used for peelable glue, low adhesion, not applicable for wood coatings

Method used

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  • A kind of preparation method of waterborne two-component system acrylic resin with interpenetrating network structure
  • A kind of preparation method of waterborne two-component system acrylic resin with interpenetrating network structure

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Take by weighing cobalt oxalate and methacrylic acid according to the proportioning ratio of 10%:90% of cobalt oxalate and methacrylic acid molar percentage, then both are put into reaction bottle, at 160 o C for 1 hour, adding copper oxide as a catalyst during the reaction. After the reaction is completed, it is confirmed by FT-IR and cooled to room temperature as a cross-linked network intermediate for later use

[0027] According to the molar percentage of methyl methacrylate, styrene, butyl acrylate, butyl methacrylate, isooctyl acrylate, hydroxyethyl methacrylate, mercaptopropionic acid is 20%:14%:10%:25% :25%:5%:1%, stir evenly, then add deionized water to make it into an aqueous solution with a solid content of 40%, add 2% ethylene glycol dimethacrylate, 1% sodium sulfite, and react at 80°C for 1 hours and keep warm for 1 hour, then cool down to 50°C

[0028] Add 10% of the above-mentioned synthetic cross-linked network intermediate, and continue to add 20%: 30...

Embodiment 2

[0032] Take cobalt oxalate and methacrylic acid according to the proportioning ratio of 20%:80% according to cobalt oxalate and methacrylic acid molar percentage, then both are put into reaction bottle, at 160 o C for 1 hour, and copper oxide needs to be added as a catalyst during the reaction. After the reaction is completed, it is confirmed by FT-IR and cooled to room temperature as a cross-linked network intermediate for later use

[0033]According to the molar percentage of methyl methacrylate, styrene, butyl acrylate, butyl methacrylate, isooctyl acrylate, hydroxyethyl methacrylate, and mercaptopropionic acid is 20%:14%:10%:25% :25%:5%:1%, stir evenly, then add deionized water to make it an aqueous solution with a solid content of 40%, add 2% ethylene glycol dimethacrylate, 1% sodium sulfite, and react at 80°C for 1 hours and keep warm for 1 hour, then cool down to 50°C

[0034] Add 10% of the above-mentioned synthetic cross-linked network intermediate, and continue to ...

Embodiment 3

[0038] Take by weighing cobalt oxalate and methacrylic acid according to the proportioning ratio of 10%:90% of cobalt oxalate and methacrylic acid molar percentage, then both are put into reaction bottle, at 160 o C for 1 hour, and copper oxide needs to be added as a catalyst during the reaction. After the reaction is completed, it is confirmed by FT-IR and cooled to room temperature as a cross-linked network intermediate for later use

[0039] According to the molar percentage of methyl methacrylate, styrene, butyl acrylate, butyl methacrylate, isooctyl acrylate, hydroxyethyl methacrylate, and mercaptopropionic acid is 20%:14%:10%:25% :25%:5%:1%, stir evenly, then add deionized water to make it solid and 40% aqueous solution, add 3% ethylene glycol dimethacrylate, 1% sodium sulfite, react at 80°C 1 hour and keep warm for 1 hour, then cool down to 50°C

[0040] Add 20% of the above-mentioned synthetic cross-linked network intermediate, and continue to add 20%: 30%: 10%: 30%:...

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Abstract

The invention relates to a method for preparing a water-based two-component system acrylic resin with an interpenetrating network structure. The process includes: (1) adding cobalt salt and methacrylic acid monomer in a certain proportion, and preparing a crosslinked network under the action of a catalyst The preparation of intermediates; (2) the use of acrylic acid comonomers, initiators, reducing agents, catalysts, molecular weight modifiers, crosslinking agents, and crosslinking network intermediates and additives to prepare a new type of water-based interpenetrating network structure The component system is acrylic resin, and the solid content is between 40% and 60%. The present invention endows it with specific properties through the precise design of the polymer network structure, and utilizes network interpenetration technology to make each network structure organically compatible and avoid phase separation, thereby greatly improving the hardness, hardness development and durability of the paint film. Chemical properties, and then replace the traditional 2KPU topcoat, and promote the development trend of comprehensive water-based.

Description

technical field [0001] The invention relates to a resin and a synthesis method thereof, in particular to a water-based two-component system acrylic resin with an interpenetrating network structure and a synthesis method thereof, belonging to the technical field of polymers. Background technique [0002] With the improvement of people's material and cultural living standards, consumers have higher and higher requirements for the coating effect of furniture, which in turn promotes the rapid development of domestic wood coatings. The coating effect of the furniture surface will directly affect consumers' choice of furniture, which puts forward higher requirements for wood coatings. [0003] In the high-end wood coating market, the traditional 2KPU topcoat has good gloss, excellent chemical resistance, high hardness and rapid hardness development, and has gradually become the best choice for high-end wood coatings. However, traditional 2K resins contain a large amount of solven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/08C08L33/02C08F220/18C08F220/14C08F212/08C08F220/20C08F222/14C08F120/06
Inventor 袁智成陶伟余杰
Owner 科思创树脂制造(佛山)有限公司
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