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Styrene-acrylic emulsion for surface coating of coated paper and preparation method of styrene-acrylic emulsion

A styrene-acrylic emulsion and coated paper technology, applied in paper coating, coating, papermaking, etc., can solve the problems of paper water resistance that cannot meet the requirements and poor gloss, and achieve the effect of improving coating gloss and enhancing water resistance

Active Publication Date: 2012-10-10
SHANGHAI DONGSHENG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, after the existing emulsion is used for paper, the gloss is poor, and the water resistance of the paper cannot meet the requirements, such as? ? ? patented technology

Method used

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  • Styrene-acrylic emulsion for surface coating of coated paper and preparation method of styrene-acrylic emulsion
  • Styrene-acrylic emulsion for surface coating of coated paper and preparation method of styrene-acrylic emulsion
  • Styrene-acrylic emulsion for surface coating of coated paper and preparation method of styrene-acrylic emulsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] 1) Synthesis of seed emulsion:

[0046] a) Mix 15g of n-butyl acrylate and 85g of styrene to obtain mixed monomer II.

[0047] 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 of potassium persulfate and 180.9g of deionized water were mixed, kept at 90°C for 10 minutes, and the mixed monomer II in step a) was added.

[0048] c) Keep warm at 90°C for 1 hour, cool down to 25°C, and filter through a 100-mesh sieve to obtain a seed emulsion with a weight solid content of 39.68wt%, an average particle size of 39.3nm (measured using a Malven particle size analyzer), and pH= 5.93 (measured using PHS-3C precision pH meter).

[0049] 2) Synthesis of styrene-acrylic emulsion for coated paper surface coating:

[0050] a) Mix 25g of n-butyl acrylate, 70g of styrene, 5g of acrylic acid...

Embodiment 2

[0058] 1) Synthesis of seed emulsion:

[0059] a) Mix 15g of n-butyl acrylate and 85g of styrene to obtain mixed monomer II.

[0060] 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 of potassium persulfate and 180.9g of deionized water were mixed, kept at 90°C for 10 minutes, and the mixed monomer II in step a) was added.

[0061] c) Keep warm at 90°C for 1 hour, cool down to 25°C, and filter through a 100-mesh sieve to obtain a seed emulsion with a weight solid content of 39.68wt%, an average particle size of 39.3nm (measured using a Malven particle size analyzer), and pH= 5.93 (measured using PHS-3C precision pH meter).

[0062] 2) Synthesis of styrene-acrylic emulsion for coated paper surface coating:

[0063] a) Mix 69g of ethyl acrylate, 30g of methyl styrene, 1g of methacr...

Embodiment 3

[0071] 1) Synthesis of seed emulsion:

[0072] a) Mix 15g of n-butyl acrylate and 85g of styrene to obtain mixed monomer II.

[0073] 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 of potassium persulfate and 180.9g of deionized water were mixed, kept at 90°C for 10 minutes, and the mixed monomer II in step a) was added.

[0074] c) Keep warm at 90°C for 1 hour, cool down to 25°C, and filter through a 100-mesh sieve to obtain a seed emulsion with a weight solid content of 39.68wt%, an average particle size of 39.3nm (measured using a Malven particle size analyzer), and pH= 5.93 (measured using PHS-3C precision pH meter).

[0075] 2) Synthesis of styrene-acrylic emulsion for coated paper surface coating:

[0076] a) Mix 20g of methyl methacrylate, 27g of 2-ethylhexyl acrylate, 5...

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Abstract

The invention discloses a styrene-acrylic emulsion for a surface coating of coated paper and a preparation method of the styrene-acrylic emulsion. The styrene-acrylic emulsion comprises the following raw materials in parts by weight: 100 parts of mixed monomer, 4 to 15 parts of seeded emulsion, 0.7 to 4.5 part(s) of emulsifying agent, 0.4 to 4.5 part(s) of initiator, 0.5 to 1.5 part(s) of accelerator, 2 to 6 parts of functional monomer, 4 to 20 parts of aqueous alkali, and 90 to 290 parts of water. The styrene-acrylic emulsion is prepared from the raw materials through the emulsion polymerization method. The styrene-acrylic emulsion for the surface coating of the coated paper can meet the requirements on high performance and environmental protection of the papermaking coating. The styrene-acrylic emulsion can be used for obviously improving the water resistance of the coated paper and improving the coating glossiness of the paper.

Description

technical field [0001] The invention relates to a styrene-acrylic emulsion 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. The application of emulsion in paper coating can significantly enhance the water resistance of paper and improve the coating gloss of paper. [0003] At present, after the existing emulsion is used for paper, the gloss is poor, and the water resistance of the paper cannot meet the requirements, such as? ? ? Patented technology. Contents of the invention [0004] The purpose of the invention is to propose the styrene-acrylic emulsion for coating paper surface coating, to overcome the defective of prior art. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F257/02C08F220/58C08F236/20C08F220/60C08F222/38C08F2/26C08F2/30D21H19/20D21H21/14
Inventor 施晓旦赵国伟
Owner SHANGHAI DONGSHENG NEW MATERIALS