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Polyacrylate resin, polyacrylate dispersion and polyacrylate vanish for plastic film and preparation methods of polyacrylate resin, polyacrylate dispersion and polyacrylate vanish

A polyacrylate and plastic film technology, applied in the direction of coating, can solve the problems of poor coating adhesion and complicated preparation process, and achieve the effect of good adhesion and wide use performance

Active Publication Date: 2019-12-13
GUANGZHOU HUMAN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of poor adhesion and complex preparation process of existing low surface energy plastic surface coatings, the invention provides a polyacrylate resin, dispersion and varnish for plastic films

Method used

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  • Polyacrylate resin, polyacrylate dispersion and polyacrylate vanish for plastic film and preparation methods of polyacrylate resin, polyacrylate dispersion and polyacrylate vanish
  • Polyacrylate resin, polyacrylate dispersion and polyacrylate vanish for plastic film and preparation methods of polyacrylate resin, polyacrylate dispersion and polyacrylate vanish
  • Polyacrylate resin, polyacrylate dispersion and polyacrylate vanish for plastic film and preparation methods of polyacrylate resin, polyacrylate dispersion and polyacrylate vanish

Examples

Experimental program
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preparation example Construction

[0065] One embodiment of the present invention provides the preparation method of polyacrylate resin for plastic film as described above, comprises the following steps:

[0066] Add solvent, functional monomer and initiator into the reaction vessel, heat to 50-80°C, react for 1-3 hours, then control the temperature at 60-120°C, add main monomer, hydrophilic monomer, cross-linking The mixed raw material of the monomer and part of the initiator is added dropwise for 3 to 5 hours, kept for 1 to 3 hours, and after adding the remaining initiator to eliminate the residual monomer, kept for 1 to 3 hours to obtain the polyacrylate resin.

[0067] The preparation method of the polyacrylate resin introduces low surface energy functional monomers, which can improve the adhesion of the resin to low surface energy substrates such as BOPP and PVC. At the same time, the preparation method is simple to operate, and only needs to polymerize different monomers. The required polyacrylic acid res...

Embodiment 1

[0073] Embodiment 1: prepare the polyacrylate dispersion A containing functional monomer

[0074] (1) See Table 1 for the formula.

[0075] Table 1

[0076]

[0077]

[0078] (2) The preparation process is as follows:

[0079] Add solvent butanol, propylene glycol butyl ether, functional monomer and initiator into the reaction vessel, stir evenly and heat to 70°C, react for 1-3 hours, then control the temperature at 90°C, add the main monomer, hydrophilic monomer dropwise The mixed raw material of body, cross-linking agent and initiator is added dropwise for 3-5 hours, and kept warm for 1-3 hours. After adding an appropriate amount of initiator to eliminate residual monomers, it is kept warm for 1-3 hours to obtain polyacrylate resin. Cool down to 30-60°C, add triethylamine to neutralize, the neutralization degree is 80%, finally add deionized water dropwise to disperse and control the solid content at 35%, stir and disperse for 45min, finally add functional additives,...

Embodiment 2

[0080] Example 2: Preparation of polyacrylate dispersion B containing functional monomers

[0081] (1) See Table 2 for the formula.

[0082] Table 2

[0083]

[0084]

[0085] (2) The preparation process is as follows:

[0086] Add solvent ethanol, ethylene glycol monobutyl ether, functional monomer and initiator into the reaction vessel, stir evenly and heat to 70°C, react for 1-3 hours, then control the temperature at 80°C, add the main monomer, hydrophilic The mixed raw material of permanent monomer, cross-linking agent and initiator is added dropwise for 3-5 hours and kept for 1-3 hours. After adding an appropriate amount of initiator to eliminate residual monomers, it is kept for 1-3 hours to obtain polyacrylate Resin, cool down to 30-60°C, add 2-amino-2-methyl-1-propanol to neutralize, the neutralization degree is 90%, and finally add deionized water to disperse and control the solid content at 35%, stir After dispersing for 1 hour, a light blue and slightly tra...

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Abstract

The invention provides polyacrylate resin for a plastic film. The invention aims to solve the problems of poor surface coating adhesion and a complicated preparation process of existing low-surface energy plastic. The polyacrylate resin includes the following components: in parts by mass, 30-50 parts of a main monomer, 3-6 parts of a hydrophilic monomer, 1-10 parts of a functional monomer, 0.05-2parts of a crosslinking monomer and 0.02-2 parts of an initiator, wherein the functional monomer is an acrylate monomer which has the structure or polarity similar to the structure or polarity of theplastic film. The invention also discloses a polyacrylate dispersion and polyacrylate vanish and preparation methods of the polyacrylate dispersion and polyacrylate vanish. According to the polyacrylate resin for the plastic film, the acrylate monomer which has the structure or polarity similar to the structure or polarity of the plastic film is introduced and adopted as the functional monomer, and excellent adhesion to BOPP, PVC and other low-surface energy substrates is achieved.

Description

technical field [0001] The invention belongs to the technical field of polyacrylate dispersion for ink, and in particular relates to a polyacrylate resin, dispersion and varnish for plastic film. Background technique [0002] Plastics with low surface energy such as BOPP and PVC are widely used in printing and packaging because of their low price and excellent performance. However, such plastics have high polarity and low surface free energy, so they have poor adhesion to inks and adhesives. It is not conducive to printing. At present, the industry often pretreats BOPP and PVC before printing. There are two types of methods usually used. One is to corona treat the surface of the substrate; the second is to use a substrate treatment agent to treat the substrate. The surface of the wood is first coated with a thin coat to increase adhesion. These methods all need to pre-treat the plastic substrate, increase the construction process, and are costly, time-consuming and labor-in...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/14C08F220/06C08F220/58C08F222/14C08F220/20C08F218/08C08F214/14C08F222/20C08J5/18C08L33/08C09D133/08C08J7/04
CPCC08F220/18C08J5/18C08L33/08C09D133/08C08J2333/08C08J2433/08
Inventor 许海燕范震李巡天黄光燕
Owner GUANGZHOU HUMAN CHEM