Anti-sticking acrylic acid paint for coating and preparation method thereof

An acrylic and anti-adhesive technology, applied in the direction of coating, etc., can solve the problems of restricting wide application, sticky coating film, difficult curing and crosslinking of primer, etc., and achieve good compatibility of general additives, stable polymerization system, easy to control effects

Inactive Publication Date: 2012-02-15
HAINAN BNK WATER BASED NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many kinds of acrylic paints for coating in the domestic and foreign markets, and the quality varies. Excellent products (such as DSM in the Netherlands) are expensive and limit their wide use in China.
And when using some acrylic paints for coating, because the primer needs to be cured, when the temperature is too low, the primer is difficult to cure and crosslink, and when the temperature is high, it is found that the coating film is prone to stickiness, especially double-sided coating. Cloth, the phenomenon is particularly serious
The current common solution is to add a slip agent (such as wax emulsion) to the coating, but the anti-sticking effect is not ideal, especially the addition of the slip agent will reduce the heat-sealing performance of the coating film

Method used

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  • Anti-sticking acrylic acid paint for coating and preparation method thereof
  • Anti-sticking acrylic acid paint for coating and preparation method thereof
  • Anti-sticking acrylic acid paint for coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Prepare raw materials (unit: kg) according to the following components:

[0025]

[0026] Synthetic method: First, mix 2kg sodium dodecylbenzenesulfonate and 1kg sodium alkyl succinate sulfonate with all monomers and stir for 1.5 hours, and the stirring speed is controlled at 80 rpm to obtain pre-emulsion A; 0.4kg over Potassium sulfate and 0.05 kg of tert-butyl hydroperoxide were dissolved in 50 kg of deionized water to form solution B; 0.1 kg of sodium bisulfite and 0.05 kg of sodium formaldehyde sulfoxylate were dissolved in 30 kg of deionized water to form solution C. Add 1 / 6 pre-emulsion A, 1 / 3 solution B and 320kg deionized water into the reactor, control the stirring speed at 160 rpm, raise the temperature to 75°C and react for 30 minutes to obtain the seed emulsion. Start to drop the remaining pre-emulsion A, remaining solution B and solution C, and finish dropping in 3.5 hours, and control the pre-emulsion A to be dropped first, and then the remaining soluti...

Embodiment 2

[0028] Prepare raw materials (unit: kg) according to the following components:

[0029]

[0030]

[0031] Synthetic method: First, mix 0.15 kg sodium dodecylbenzene sulfonate and 0.05 kg sodium alkyl succinate sulfonate with all monomers and stir for 2 hours, and the stirring speed is controlled at 100 rpm to obtain pre-emulsion A; 0.065 Dissolve kg potassium persulfate and 0.006 kg tert-butyl hydroperoxide with 4 kg deionized water to form solution B; dissolve 0.023 kg sodium bisulfite and 0.006 kg formaldehyde sodium sulfoxylate with 2 kg deionized water to form solution C. Add 1 / 6 pre-emulsion A, 1 / 3 solution B and 34kg deionized water into the reactor, control the stirring speed at 175 rpm, raise the temperature to 72°C and react for 60 minutes to obtain the seed emulsion. Start to drop the remaining pre-emulsion A, remaining solution B and solution C, and finish dropping in 3 hours, and control the pre-emulsion A to be dropped first, and then the remaining solution ...

Embodiment 3

[0033] Prepare raw materials (unit: kg) according to the following components:

[0034]

[0035]

[0036] Synthetic method: First, mix 1.2kg sodium dodecylbenzenesulfonate and 0.3kg sodium alkyl succinate sulfonate with all monomers and stir for 1 hour, and the stirring speed is controlled at 60 rpm to obtain pre-emulsion A; 0.25 Dissolve kg potassium persulfate and 0.04 kg tert-butyl hydroperoxide with 30 kg deionized water to form solution B; Add 1 / 6 of the pre-emulsion A, 1 / 3 of the solution B and 150kg of deionized water into the reactor, control the stirring speed at 150 rpm, raise the temperature to 70°C and react for 40 minutes to obtain the seed emulsion. Start to drop the remaining pre-emulsion A, remaining solution B and solution C, and finish dropping in 4 hours, and control the pre-emulsion A to be dropped first, and then the remaining solution B and solution C are dropped at the same time. Keep the reaction at 79°C for 1 hour, lower the temperature to below...

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PUM

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Abstract

The invention relates to anti-sticking acrylic acid paint for coating and a preparation method thereof. The paint comprises the following ingredients in percentage by weight: 8 to 11 percent of methacrylate, 6 to 10 percent of acrylic ester, 0.4 to 2 percent of hydroxyethyl acrylate, 0.4 to 2 percent of acrylic acid, 0.05 to 0.6 percent of emulsifying agents, 0.02 to 0.18 percent of oxidation type initiators, 0.005 to 0.12 percent of reducing type initiators, 0.01 to 0.2 percent of defoaming agents, 1 to 5 percent of ammonia water and 76 to 84 percent of deionized water. In the acrylic ester polymerization process, and the functional cross linking monomers are added, so the heat cross linking effect is carried out in the coating curing process of the paint for enhancing the anti-sticking effect of the coating film in high-humidity environment. In addition, through the reasonable use of the emulsifying agents and the initiators in a polymerization system, the integral performance of the acrylic paint can also be improved. A proper emulsifying system, the initiators, monomers and processes are adopted for preparing the acrylic acid paint for coating with the ideal anti-sticking effect, and simultaneously, the original performance such as good heat sealing performance, high glossiness and the like is maintained. The paint is stable and has good coating adaptability, the process is simple, the cost is low, and the paint is suitable for industrial production.

Description

Technical field [0001] The invention relates to an anti-adhesive acrylic paint for coating and a preparation method thereof, belonging to the field of polymer materials. Background technique [0002] In the packaging industry, as people pay more and more attention to the aesthetic requirements of various packaging, acrylic coatings are widely used because of their advantages such as high gloss and good printing adaptability. At present, there are many kinds of acrylic paints for coating in the domestic and foreign markets, and the quality varies. Excellent products (such as Dutch DSM company) are expensive and limit their wide use in China. And when using some acrylic paints for coating, because the primer needs to be cured, when the temperature is too low, the primer is difficult to cure and cross-link, and when the temperature is high, it is found that the coating film is prone to stickiness, especially double-sided coating. Cloth, the phenomenon is particularly serious. ...

Claims

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Application Information

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IPC IPC(8): C09D133/12C09D133/08C09D5/00
Inventor 黄宏存
Owner HAINAN BNK WATER BASED NEW MATERIAL CO LTD
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