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Synthesis of Modified Self-crosslinking Styrene-acrylic Soap-free Emulsion as Surface Sizing agent

Lili Liu

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Abstract

The synthesis of styrene-acrylic emulsion by soap-free emulsion polymerization was researched in this paper.Functional monomers,such as diacetone acrylamide(DAAM),acrylamide(AM),and reactive emulsifier formulated by non-ionic reactive surfactant KL-100 and anionic reactive emulsifier COPS-1,were added in the emulsion system.The optimum conditions for emulsion polymerization were obtained: the ratio of hard and soft monomers is 1,reaction temperature 75~80℃,emulsifier dosage 4wt%,and functional monomers dosage 2wt%.Both water resistance and gloss of the paper surface sized by the emulsion were very high.

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What this paper is about

The synthesis of styrene-acrylic emulsion by soap-free emulsion polymerization was researched in this paper.Functional monomers,such as diacetone acrylamide(DAAM),acrylamide(AM),and reactive emulsifier formulated by non-ionic reactive surfactant KL-100 and anionic reactive emulsifier COPS-1,were added in the emulsion system.The optimum conditions for emulsion polymerization were obtained: the ratio of hard and soft monomers is 1,reaction temperature 75~80℃,emulsifier dosage 4wt%,and functional monomers dosage 2wt%.Both water resistance and gloss of the paper surface sized by the emulsion were very high.

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Available abstract

The synthesis of styrene-acrylic emulsion by soap-free emulsion polymerization was researched in this paper.Functional monomers,such as diacetone acrylamide(DAAM),acrylamide(AM),and reactive emulsifier formulated by non-ionic reactive surfactant KL-100 and anionic reactive emulsifier COPS-1,were added in the emulsion system.The optimum conditions for emulsion polymerization were obtained: the ratio of hard and soft monomers is 1,reaction temperature 75~80℃,emulsifier dosage 4wt%,and functional monomers dosage 2wt%.Both water resistance and gloss of the paper surface sized by the emulsion were very high.

Key concepts: Emulsion, Emulsion polymerization, Styrene, Monomer, Acrylamide, Polymer chemistry, Chemical engineering, Pulmonary surfactant

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