Microencapsulation of Sodium Hydrogen Carbonate to Generate Carbon Dioxide with Thermal Responsible Shell Material
- 1 Graduate School of Science and Technology, Niigata University, Niigata, Japan
- 2 Graduate School of Science and Technology, Niigata University, Niigata, Japan
- 3 Department of Research & Development, Shofu Inc., Kyoto, Japan
- 4 Graduate School of Science and Technology, Niigata University, Niigata, Japan
- 5 Graduate School of Science and Technology, Niigata University, Niigata, Japan
Abstract
This paper tried to develop the optimum procedure for microencapsulating water soluble solid powder with the thermal responsible material by the melting dispersion cooling method. Sodium hydrogen carbonate was adopted as a water soluble solid powder instead of microencapsulating carbon dioxide gas. The shell material was composed of olefin wax and α -tocopherol. In the experiment, the concentration of oil soluble surfactant and the water soluble surfactant species were changed. Sodium hydrogen carbonate was treated in the aqueous solution dissolving the water soluble surfactant to form the finer sodium hydrogen carbonate powder and to increase the content. The microencapsulation efficiency could be increased with the concentration of oil soluble surfactant and considerably increased by treating sodium hydrogen carbonate with the water soluble surfactant. Sodium hydrogen carbonate was protected well from environmental water. The microcapsules showed the thermal responsibility to generate carbon dioxide.
- Kondo, T. (1967) Saishin Maikurokapseruka Gijutsu (Microencapsulation Technique). TES, Tokyo.
- Tanaka, M. (2008) Key Point of Preparation of Nano/Microcapsules. Techno System Publishing Co. Ltd., Tokyo.
- Koishi, M., Eto, K. and Higure, H. (2005) (Preparation + Utilization) Microcapsules, Kogyo Chosakai, Tokyo.
- Takahashi, M., Taguchi, Y. and Tanaka, M. (2008) Microencapsulation of Hydrophilic Solid Powder as Fire Retardant Agent with Epoxy Resin by Droplet Coalescence Method. Journal of Applied Polymer Science, 110, 1671-1676. http://dx.doi.org/10.1002/app.28211
- Takahashi, M., Taguchi, Y. and Tanaka, M. (2009) Microencapsulation of Hydrophilic Solid Powder as a Fire Retardant by the Method of in Situ Gelation in Droplets Using a Non-Aqueous Solvent as the Continuous Phase. Polymers & Polymer Composites, 17, 83-90.
- Takahashi, M., Taguchi, Y. and Tanaka, M. (2010) Microencapsulation of Hydrophilic Solid Powder as a Flame Retardant with Epoxy Resin by Using Interfacial Reaction Method. Polymers for Advanced Technologies, 21, 224-228.
- Yuan, W., Ren, T., Wu, F., Zhao, H. and Jin, T. (2010) A Novel Preparation Method for Microspheres by Glycerol Modified Solid-in-Oil-in-Water Multi-Emulsion. Polymers for Advanced Technologies, 21, 371-376. http://dx.doi.org/10.1002/pat.1438
- Xia, H., Zhang, Y., Peng, J., Fang, Y. and Gu, Z. (2006) Preparation of Silver-Poly (Acrylamide-co-Methacrylic Acid) Composite Microspheres with Patterned Surface Structures. Colloid and Polymer Science, 284, 1221-1228. http://dx.doi.org/10.1007/s00396-006-1472-0
- Gao, Q., Wang, C., Liu, H., Wang, C., Liu, X. and Tong, Z. (2009) Suspension Polymerization Based on Inverse Pickering Emulsion Droplets for Thermos-Sensitive Hybrid Microcapsules with Tunable Supracolloidal Structures. Polymer, 50, 2587-2594. http://dx.doi.org/10.1016/j.polymer.2009.03.049
- Schuch, A., Wrenger, J. and Schuchmann, H.P. (2014) Production of W/O/W Double Emulsions. Part II: Influence of Emulsification Device on Release of Water by Coalescence. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 461, 344-351. http://dx.doi.org/10.1016/j.colsurfa.2013.11.044
- Taguchi, Y., Aoki, M. and Tanaka, M. (2014) Preparation of Microcapsules Containing Triple Core Materials with Interfacial Condensation Reaction. Journal of Cosmetics, Dermatological Sciences and Applications, 4, 275-283. http://dx.doi.org/10.4236/jcdsa.2014.44037