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Preparation of self-crosslinked acrylate emulsion with high elasticity and its rheological properties

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Abstract

Using butyl acrylate(BA), methyl methacrylate(MMA), methacrylic acid(MAA) and mixed emulsifier as raw materials, the self-crosslinked emulsion was prepared via pre-emulsified and semi-continuous seeded emulsion polymerization technology in the presence of N-hydroxymethyl acrylamide and poly solidum maleate. The influence of mass ratio of BA to MMA, amount of N-hydroxymethyl acrylamide and poly solidum maleate on the rheological properties of the self-crosslinked emulsion was studied. Possible cross-linked mechanism of self-crosslinked monomer was investigated. And the relationship between emulsion viscosity and shear rate was investigated. The results show that the self-crosslinked acrylate emulsion with high elasticity can be synthesized when the mass fractions of BA is 60%, MMA is 40%, and added amount of N-hydroxymethyl acrylamide is 2.5%–3.0% and added amount of poly solidum maleate is 0.3%–0.4%. The self-crosslinkage process of N-hydroxymethyl acrylamide involves two steps. One is copolymerization of N-hydroxymethyl acrylamide and acrylate, the other is cross-linkage among polymer molecules via condensation reaction of methylol. The emulsion is of rheological properties of pseudo-plastic fluid and belongs to non-Newtonian fluid.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China

    Li-jun Chen  (陈立军), Dong-shuang Li  (李冬霜) & Rong-xian Li  (李荣先)

  2. Research Institute of Tsinghua University in Shenzhen, Shenzhen, 518057, China

    Li-jun Chen  (陈立军), Dong-shuang Li  (李冬霜), Jian Yang  (杨 建) & Rong-xian Li  (李荣先)

  3. Novel Company of Shenzhen, Shenzhen, 518054, China

    Feng-qin Wu  (武凤琴)

Authors
  1. Li-jun Chen  (陈立军)
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  2. Feng-qin Wu  (武凤琴)
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  3. Dong-shuang Li  (李冬霜)
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  4. Jian Yang  (杨 建)
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  5. Rong-xian Li  (李荣先)
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Correspondence to Li-jun Chen  (陈立军).

Additional information

Foundation item: Project(2003B10506) supported by Guangdong Provincial Department of Science and Technology, China

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Chen, Lj., Wu, Fq., Li, Ds. et al. Preparation of self-crosslinked acrylate emulsion with high elasticity and its rheological properties. J. Cent. South Univ. Technol. 15, 324–328 (2008). https://doi.org/10.1007/s11771-008-0061-4

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  • DOI: https://doi.org/10.1007/s11771-008-0061-4

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