Cation cross-linked styrene-acrylic surface sizing agent and preparation method thereof

A technology of surface sizing agent and cationic crossover, which is applied in the direction of adding water repellent, can solve the problems of complex production process and high sizing cost, and achieve the effects of improving physical strength, simple preparation method and convenient large-scale promotion.
CN104846697AInactive Publication Date: 2015-08-19杭州百事特实业股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
杭州百事特实业股份有限公司
Publication Date
2015-08-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a cation cross-linked styrene-acrylic surface sizing agent and a preparation method thereof. The surface sizing agent comprises the following raw materials: 10-15 parts of dispersing agents, 0.5-1 parts of oxidizing agents, 1-3 parts of initiating agents, 10-20 parts of hard monomers, 10-15 parts of soft monomers, 1-10 parts of functional monomers, 1-10 parts of cationic monomers, 3-10 parts of crosslinking monomers and 50-80 parts of deionized water, wherein the hard monomer is one or combination of more than one of the styrene, vinyl acetate and methyl methacrylate, and the dispersing agent is native starch. The surface sizing agent utilizes the native starch as the dispersing agents to synthesize the styrene-acrylic surface sizing agent together with raw materials; and compared with a conventional starch-synthesized styrene-acrylic surface sizing agent, the surface sizing agent in the invention is better in film-forming property, higher in stability and higher in cost performance; and the surface sizing agent allows paper to have better water resistance, and meanwhile, can greatly reduce paper sizing cost.
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Description

technical field

[0001] The invention relates to a cationic crosslinking type styrene-acrylic surface sizing agent and a preparation method thereof. Background technique

[0002] With the rapid development of papermaking technology, people's requirements for paper quality are also constantly increasing. Styrene-acrylic surface sizing agents have strong advantages in improving paper water resistance, improving paper surface strength and improving paper printing adaptability. As a low-cost and easy-to-take raw material, starch is gradually being widely used by people. Among the synthetic styrene-acrylic surface sizing agents, the styrene-acrylic surface sizing agents with a very high market share are all made of modified starch as a dispersant, and have a good use effect, but due to the modified starch The production process of special styrene-acrylic surface sizing agents is complicated, and the sizing cost is too high. Contents of the invention

[0003] The technical prob...

Claims

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