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Synthesis of Modified Self-crosslinking Styrene-acrylic Soap-free Emulsion as Surface Sizing agent
  
DOI：10.11980/j.issn.0254-508X.2011.07.006
Key Words:styrene-acrylic soap-free emulsion  surface sizing agent  functional monomers  reactive emulsifier
Fund Project:江苏省制浆造纸科学与技术重点实验室开放基金项目(200905)。
Author NameAffiliation
张　恒1,2 1.青岛科技大学化工学院，山东青岛，266042；2.南京林业大学江苏省制浆造纸科学与技术重点实验室，江苏南京，210037 
赵娜娜1 1.青岛科技大学化工学院，山东青岛，266042 
刘丽丽1 1.青岛科技大学化工学院，山东青岛，266042 
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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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