Styrene-acrylic emulsion, preparation method thereof, and application thereof

A technology of styrene-acrylic emulsion and emulsion, which is applied in the field of papermaking, to achieve the effects of improving the surface strength and sizing degree of finished products, good hydrophobicity, and improving stability

Active Publication Date: 2014-06-11
广州市迪笙生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, styrene-acrylic emulsion sizing is mainly used in the production process of packaging paper, such as container board and corrugated base paper, to improve the water resistance and ring compression strength of paper, but it has not been used in the production of cultural paper.

Method used

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  • Styrene-acrylic emulsion, preparation method thereof, and application thereof
  • Styrene-acrylic emulsion, preparation method thereof, and application thereof
  • Styrene-acrylic emulsion, preparation method thereof, and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1. Preparation of styrene-acrylic emulsion: raw materials: 690kg of deionized water, 100kg of CS-08 starch, 0.6kg of amylase (sizing enzyme KDNzymeS60, Shanghai Kangdien Biological Group), 15kg of gelatin with a molecular weight of 20000g / mol, 30kg of hydroxyethyl acrylate Grease, 1kg cationic monomer acryloyloxyethyltrimethylammonium chloride, 0.5kg concentration of ammonium persulfate aqueous solution of 20% by weight as initiator, styrene 100kg, N, N`-methylene acrylamide 3kg, 60kg of propyl methacrylate.

[0038] Add 300kg of deionized water into the reaction tank, add 100kg of CS-08 starch, add 0.6kg of amylase, heat up to 65°C, heat up to 85°C with steam after 0.5 hours of reaction time, add 15kg of gelatin, and then add 200kg of deionized water, Until the gelatin dissolves in deionized water, keep it warm for 0.5 hours, then add 190kg of deionized water, cool down to 45°C, add 30kg of hydroxyethyl acrylate, add 1kg of cationic monomer acryloyloxyethyltrimethylamm...

Embodiment 2

[0042] 1. Preparation of styrene-acrylic emulsion: raw materials: 630kg deionized water, 100kg CS-08 starch, 0.6kg amylase (LPK-CS01S amylase, Shenzhen Lvweikang Biological Engineering Co., Ltd.), 12kg gelatin with a molecular weight of 100000g / kg, 30kg Hydroxyethyl methacrylate, 2kg cationic monomer dimethylaminoethyl methacrylate chloride, 0.6kg concentration are 20% ammonium persulfate aqueous solution by weight as initiator, styrene 95kg, N, N`- Methylene acrylamide 3kg, propyl methacrylate 65kg.

[0043]Add 300kg of deionized water into the reaction tank, add 100kg of CS-08 starch, add 0.6kg of amylase, heat up to 65°C, heat up to 85°C with steam after 0.5 hours of reaction time, add 12kg of gelatin, and then add 200kg of deionized water, Until the gelatin is dissolved in deionized water, keep it warm for 0.5 hours, then add 130kg of deionized water, cool down to 45°C, add 30kg of hydroxyethyl methacrylate, and add 1.5kg of cationic monomer dimethyl diallyl ammonium chlor...

Embodiment 3

[0047] 1. Preparation of styrene-acrylic emulsion: raw materials: 690kg of deionized water, 100kg of CS-08 starch, 0.6kg of amylase (Au-PEA550S amylase, Su Kehan ​​(Weifang) Biological Engineering Co., Ltd.), 10kg of gelatin with a molecular weight of 100,000g / mol , 30kg hydroxyethyl methacrylate, 1.5kg cationic monomer dimethyl diallyl ammonium chloride, 0.6kg concentration is the ammonium persulfate aqueous solution of 20% by weight as initiator, styrene 100kg, acrylate aminopropyl 4kg ester, 60kg butyl methacrylate.

[0048] Add 300kg of deionized water to the reaction tank, add 100kg of CS-08 starch, add 0.6kg of amylase, heat up to 65°C, heat up to 85°C with steam after 0.5 hours of reaction time, add 10kg of gelatin, and then add 200kg of deionized water, Until the gelatin dissolves in deionized water, keep it warm for 0.5 hours, then add 190kg of deionized water, cool down to 45°C, add 30kg of hydroxyethyl methacrylate, and add 1.5kg of cationic monomer dimethyl diallyl...

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Abstract

The invention relates to a styrene-acrylic emulsion, a preparation method thereof, and an application thereof. The styrene-acrylic emulsion provided by the invention comprises the components of: starch, amylases, a cationic monomer, an acrylate monomer, a crosslinking monomer, styrene, a dispersing agent, hydroxyethyl methacrylate, an initiator aqueous solution with a concentration of 20wt%, and deionized water. A surface sizing emulsion prepared by using the styrene-acrylic emulsion provided by the invention and biological latex has better film-forming performance and good hydrophobicity. With the surface sizing emulsion, paper can be provided with better surface strength, better printing performance, and certain water resistance. The styrene-acrylic emulsion is environment-friendly. When in use, the surface sizing emulsion prepared by using the styrene-acrylic emulsion provided by the invention is directly coated on the surface of paper, and surface sizing starch is no longer used during the surface sizing process. Therefore, a fine paper surface sizing operation process is simplified, and surface sizing process stability in fine paper production is improved.

Description

technical field [0001] The invention relates to a styrene-acrylic emulsion and a preparation method thereof, and also relates to a surface sizing emulsion prepared by using the styrene-acrylic emulsion, which belongs to the field of papermaking. Background technique [0002] The structure of paper fiber raw materials in my country is different from other countries in that non-wood fiber raw materials account for a large proportion, and more wood pulp also has a large content of wood secondary fibers, which makes the fibers in the pulp shorter and more miscellaneous cells , There are many types of auxiliary chemicals used. At present, especially some cultural papers still use a large amount of non-wood fibers, such as reed pulp, wheat straw pulp, etc. Most of them use surface sizing technology to improve the surface strength of paper, prevent hair loss and powder loss, adapt to the requirements of high-speed printing machines, and improve printing quality. Printability, and i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F212/08C08F220/18C08F220/28C08F2/22D21H21/16D21H19/20
Inventor 雷得定张百友郝丙业
Owner 广州市迪笙生物科技有限公司
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