Superficial Optimization of Microcapsule


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To solve the gelatin gum arabic electronic ink microcapsules’ problems of thin shells, easy to break and poor mechanical properties, the above microcapsule was coated by urea-formaldehyde polymer and double shell microcapsule was got. The surface morphology of double shell microcapsules was observed by Metallurgical Microscopy, the dispersion particle size of microcapsules was measured by Laser Particle Size Analyzer, the microcapsules’ hermetization property was tested by UV-Vis spectrophotometer, and the mechanical intensity of microcapsule was measured by Microcomputer Control Omnipotence Test Machine (MCOTM). It was found that the microcapsule prepared by this method showed regular shape and increased size. Additionally, both the hermetization property and mechanic intensity of the microcapsules were improved.



Key Engineering Materials (Volumes 373-374)

Main Theme:

Edited by:

M.K. Lei, X.P. Zhu, K.W. Xu and B.S. Xu




S. N. Qiao et al., "Superficial Optimization of Microcapsule", Key Engineering Materials, Vols. 373-374, pp. 690-693, 2008

Online since:

March 2008




[1] Li Luhai, Zhang Shufen and YangJingsong, Technology and prospects of electronic-paper display, Chinese Journal of Electron Devices, Vol. 26, No. 2. (2003), p.150~153.

[2] Foris P L and Brown R W, U. S Patent 4, 001, 140. (1977).

[3] Gan Huchaozhi, in The microcapsule technology, edited by Light Industry Publishing, China (1989).

[4] Li Luhai, He Junyong and Zhang Shufen, The microcapsule process and application in electronic paper, Journal of Functional Materials, Vol. 35, No. 4. (2004), p.407~409.

[5] Ding Minghui and Zhang Yanqi etal, Effects of Synthesis Conditions for UF Pre-polymer on Morphology of Electrophoresis Microcapsules, The Chinese Journal of Process Engineering, Vol. 6, No. 1 Feb. (2006) ), p.52~54.

[6] Zhao Xiaopeng, in Electronic Ink and Paper, Chemical Industry, China (2006).

[7] , 9] Yu Wenlihui. The microcapsule prepared by situ polymerization. 2004 academician thesis of LAN Zhou University (2004).

[8] H.L. Guo, X.P. Zhao, Preparation of a kind of red encapsulated electrophoretic ink, Optical Materials, Vol. 26 (2004) , pp.297-300.


[10] Yang Yi, Wang Tingjie, Pei Guanglin and JinYong, Direct Preparation Process of Microcapsules by in situ Polymerization of Urea-Formaldehyde, Journal of Chemical Engineering of Chinese Universities, Vol. 19, No. 3 (2005), p.338~343.

[11] Louis Danicher, Philippe Gramain and Yves Frere, Model capsules I. Synthesis, characteristics and properties of millimetric polyamide capsules, Reactive & Functional Polymers Vol. 42 (1999), pp.111-125.


[12] , 13] G. Sun and Z. Zhang, Mechanical strength of microcapsules made of different wall Materials, International Journal of Pharmaceutics, Vol. 242 (2002), pp.307-311.