Study of SMA as Protective Colloid on the MF-Resin Micro-Encapsulation

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The paper studied the effects of SMA as protective colloid on emulsification and micro-encapsulation process in the preparation of MF-resin microcapsules. The results indicated that pH value and the dosage of the SMA had important effects on zeta value and micro-encapsulation. The SMA dosage, emulsifying time and stirring rate influenced the capsule preparation, mean particle size and particle size distribution of microcapsules. The diameter became smaller with the increase of the amount of protective colloid. The applying amount of the SMA had an optimum value. The zeta potential just after emulsification was much larger than after reaction of MF in the preparation of microcapsules.

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542-545

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September 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] Simon Benita. Microcapsulation. NewYork: Marcel Dekker Inc Press, 1996, pp.1-93.

Google Scholar

[2] Poris P L, et al. (NCR Corporation). Capsule manufacture. US patent 4, 001, 140. (1977).

Google Scholar

[3] Zhaohui Zhen. Effects of Protective colloid on the MF-UF double wall micro encapsulation containing essence oil. Application of chemical engineering, part2, (2011).

DOI: 10.4028/www.scientific.net/amr.236-238.1169

Google Scholar

[4] Zheng Zhong. The Physical Chemistry Principles of the Surface Active Agent. South China University of Technology Press, Guangzhou, (1997).

Google Scholar

[5] Chen Shuilin. Trans. Theoretic chemistry of dyeing. Textile Industry Press, Beijing, (1981).

Google Scholar