Propyl benzene latex with fine grain diameter for coating paper surface paint and preparation method and application thereof

A fine particle size, coated paper technology, applied in paper coating, papermaking, coating, etc., can solve the problems of poor paper gloss and poor paper surface strength, and achieve the effect of improving gloss and enhancing surface strength

Active Publication Date: 2010-09-01
JINING MING SHENG NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent CN101280035A discloses a method for preparing an emulsion. The prepared emulsion is applied to paper coatings. The fluidity and water resistance of the coating are good, but the surface strength of the paper after coating on the paper is poor, and the gloss of the paper after coating is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] 1) Synthesis of seed emulsion:

[0058] a) Mix 15g of n-butyl acrylate and 85g of styrene to obtain mixed monomer II.

[0059] b) 10g polyvinyl alcohol 0588 (Guangzhou Qisheng Chemical Co., Ltd.), 10g nonylphenol polyoxyethylene (7) ether (Guangzhou Junxin Chemical Technology Co., Ltd.), 0.1g polypropylene glycol PPG-200 (Jiangsu Province Haian Petrochemical Plant), 0.5g potassium persulfate and 180.9g deionized water were mixed, kept at 90°C for 10 minutes, and the mixed monomer II in step a) was added.

[0060] c) heat preservation at 90°C for 1 hour, cool to 25°C, and filter through a 100-mesh sieve to obtain a seed emulsion with a weight solid content of 39.5wt%, an average particle size of 38.9nm (measured using a Malven particle size analyzer), and pH= 5.86 (measured using PHS-3C precision pH meter).

[0061] 2) Synthesis of fine particle size propylene latex for coating paper surface coating:

[0062] a) Mix 20g of n-butyl acrylate, 74g of styrene and 6g of ac...

Embodiment 2

[0069] 1) Synthesis of seed emulsion:

[0070] a) Mix 5 g of ethyl acrylate and 95 g of methyl styrene to obtain mixed monomer II.

[0071] b) 20g polyvinyl alcohol 1788 (Guangzhou Qisheng Chemical Co., Ltd.), 20g nonylphenol polyoxyethylene (10) ether (Guangzhou Junxin Chemical Technology Co., Ltd.), 2g polypropylene glycol PPG-400 (Jiangsu Haian Petrochemical plant), 2g of ammonium persulfate and 576g of deionized water were mixed, kept at 90°C for 30 minutes, and the mixed monomer II in step a) was added.

[0072] c) Insulate at 90°C for 3 hours, cool to 25°C, and filter through a 100-mesh sieve to obtain a seed emulsion with a weight solid content of 20.3wt%, an average particle size of 23.5nm (measured using a Malven particle size analyzer), and pH = 2.18 (measured using PHS-3C precision pH meter).

[0073] 2) Synthesis of fine particle size propylene latex for coating paper surface coating:

[0074] a) Mix 40g of ethyl acrylate, 50g of methyl styrene and 10g of methac...

Embodiment 3

[0081] 1) Synthesis of seed emulsion:

[0082] a) Mix 5 g of methyl methacrylate, 5 g of 2-ethylhexyl acrylate, and 90 g of methyl styrene to obtain mixed monomer II.

[0083] b) 15g polyvinyl alcohol 2488 (Guangzhou Qisheng Chemical Co., Ltd.), 15g nonylphenol polyoxyethylene (15) ether (Guangzhou Junxin Chemical Technology Co., Ltd.), 1g polypropylene glycol PPG-600 (Jiangsu Haian Petrochemical plant), 1g of sodium persulfate and 308g of deionized water were mixed, kept at 80°C for 20 minutes, and the mixed monomer II in step a) was added.

[0084] c) heat preservation at 80°C for 2 hours, cool to 25°C, and filter through a 100-mesh sieve to obtain a seed emulsion with a weight solid content of 30.33wt%, an average particle size of 32.0nm (measured by a Malven particle size analyzer), and pH= 3.85 (measured using PHS-3C precision pH meter).

[0085] 2) Synthesis of fine particle size propylene latex for coating paper surface coating:

[0086] a) Mix 10 g of methyl methacr...

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Abstract

The invention discloses propyl benzene latex with fine grain diameter for coating paper surface paint and a preparation method and application thereof. The latex is prepared by taking the following components as the raw materials in parts by weight in the mode of emulsion polymerization: 4-15 parts of seed emulsion, 100 parts of mixed monomer, 0.7-4.5 parts of emulsifier, 0.4-4.5 parts of initiator, 2-4 parts of accelerator, 2-8 parts of cross linking monomer, 4-20 parts of aqueous alkali and 90-290 parts of water, wherein the mixed monomer is composed of the following monomers in parts by weight: 20-44 parts of metacrylic acid ester, 50-74 parts of alpha methyl styrene and 6-10 parts of methacrylic acid. The propyl benzene latex with fine grain diameter for coating paper surface paint of the invention is an environmental-friendly high-property product which can be used by paper making paint. The product is applied in coating paper surface paint, can obviously strengthen the surface strength of the coating surface and improves paper coating glossiness.

Description

technical field [0001] The invention relates to a kind of propylene latex with fine particle diameter for top coating, which is applied to the top coating of coated paper. Background technique [0002] Emulsions are widely used in the bonding of paper coatings. In the application process, the performance requirements of emulsions are getting higher and higher. With the improvement and development of emulsion application technology, the emulsion is required to have good process applicability, among which, the most important thing is the cohesiveness of fine particle size propylene latex. The application of emulsion in paper coating can obviously improve the surface strength of paper and improve the glossiness of paper. [0003] Chinese patent CN101280035A discloses a method for preparing an emulsion. The prepared emulsion is applied to paper coatings. The fluidity and water resistance of the coating are good, but the surface strength of the paper after coating on the paper i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/08C08F212/12C08F220/06C08F220/14C08F220/18C08F2/30C08F2/26D21H19/12
Inventor 施晓旦尹东华王养臣
Owner JINING MING SHENG NEW MATERIALS CO LTD
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