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| Factors Influencing Styrene- Acrylic Emulsion Application Performance |
Li XU1,Lizhou JIA1,Hongling YI1,Heng LIN1,JIAN XU2,3,Lefeng FU2,3,Baicun ZHENG1,*( ) |
1. Advanced Sports Material R & D Center, East China University of Science and Technology, Shanghai 200237
2. Shanghai Sunrise Chemical Corporation Limited, Shanghai 200232
3. Shanghai Engineering Research Center of Center of Construction Admixtures, Shanghai 200232 |
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Cite this article:
Li XU,Lizhou JIA,Hongling YI,Heng LIN,JIAN XU,Lefeng FU,Baicun ZHENG. Factors Influencing Styrene- Acrylic Emulsion Application Performance. Chinese Journal of Materials Research, 2014, 28(1): 75-80.
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Abstract The styrene-acrylic emulsion was synthesized by pre-emulsified semi-continuous seeded emulsion polymerization, with styrene (St) and 2-ethylhexyl acrylate (2-EHA) as main monomers. The particle size distributions were characterized by laser particle size analyzer, the glass transition temperatures were measured by DSC, and the rheological behaviors were analyzed by rheometer. The effects of monomer-proportion, the amount of cross-linking agent and emulsifiers on particle sizes, emulsion stabilities, rheological behaviors and bonding properties were investigated. The results show that styrene-acrylic emulsion is a pseudoplastic fluid, and the viscosity enhanced with the increase of the ratio of 2-EHA/St, the amount of cross-linking agent or emulsifiers. The emulsions stabilize with the increment of emulsifiers, while destabilize with the increment of cross-linking agent. The shear bond strength enhances with the increment of cross-linking agent or the ratio of 2-EHA/St. The particle size of emulsions decreases with the increment of emulsifiers, while increases with the increment of cross-linking agent.
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Received: 28 June 2013
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