Abstract
Fine polyacrylate particles are thought to be environmental plastisols for car industry. However, these particles are mainly dried through demulsification of the latexes, which is not reproducible and hard to be scaled up. In this work, a spray drying method had been applied to the plastisols-used acrylate latex. By adjusting the core/shell ratio, spray drying process of the latex was fully studied. Scanning electronic microscopy observation of the nanoparticles before and after spray drying indicated that the core–shell structures could be well preserved and particles were well separated by spray drying if the shell was thick enough. Otherwise, the particles fused into each other and core–shell structures were destroyed. Polyacrylate plastisols were developed using diisononylphthalate as a plasticizer, and plastigels were obtained after heat treatment of the sols. Results showed that the shell thickness also had a great influence on the storage stability of the plastisols and mechanical properties of the plastigels.
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Acknowledgments
The authors gratefully acknowledge financial support from National Natural Science Foundation of China (Grant No. 51403003), Anhui Provincial Natural Science Foundation of Anhui Province (1508085QE105).
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Chen, P., Cheng, Z., Chu, F. et al. Fabrication of polyacrylate core–shell nanoparticles via spray drying method. J Nanopart Res 18, 124 (2016). https://doi.org/10.1007/s11051-016-3432-z
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DOI: https://doi.org/10.1007/s11051-016-3432-z