Synthesis of Cationic Surface Sizing Agent and its Application

Abstract:

Cationic styrene-acrylate latex as surface sizing agent had been prepared with the emulsion polymerization by use of styrene, dimethylaminoethyl methacrylate, 2-ethylhexyl acrylate, modified PVA 0588 as the emulsifiers. The infrared spectrum of copolymer and particle size and physical properties were separately determined. The results indicated that the obtained copolymer emulsion was very stable, the average molecular weight of copolymer approached about 45000 and polydispersity index was 1.6. The copolymer with higher quaternization degree had smaller particle size and narrower particle distribution when initiator had the same usage. The copolymer as surface sizing agent improved the hydrophobicity of paper, the water-proofing time approached 14.7 seconds at most, the copolymer with narrow particle distribution increased 7% sizing performance than the one with wide particle distribution.

• Periodical: Applied Mechanics and Materials (Volume 200)
• Pages: 423-426
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.200.423
• Online since: October 2012
• Authors: Xian Mei Zhu, Gang Hu Cheng, Jia Jun Wang, Tao Wu
• Keywords: Dimethylaminoethyl Methacrylate, Styrene, Styrene-Acrylate Emulsion, Surface Sizing

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