Redispersibility of Acrylate Polymer Powder and Stability of Its Reconstituted Latex

Autor: Yuling Jiang, Xinya Zhang, Huanqin Chen, Hong Huang, Yongbing Pei
Rok vydání: 2011
Předmět:
Zdroj: Journal of Dispersion Science and Technology. 32:1279-1284
ISSN: 1532-2351
0193-2691
DOI: 10.1080/01932691.2010.505799
Popis: The acrylate redispersible polymer powder (RPP) was produced from acrylate latex via spray drying, which was synthesized by latex polymerization with the configuration of soft core and hard shell. The powder's redispersibility and stability of its reconstituted latex were achieved through incorporating monomer methacrylic acid (MAA), which has functional carboxyl group and can provide an ionization effect in alkaline range. The influence of pH value and MAA amount on the redispersibility and stability were studied. The stabilization mechanism for reconstituted latex was also investigated. The acrylate RPP has good redispersibility at MAA of 4–5% and pH values between 9.0 and 10.0. The reconstituted latex is stable at these conditions due to high zeta potential and strong electrostatic repulsion force.
Databáze: OpenAIRE
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