Effect of Pre-Polymerization Conditions on the Performance of UF/Low Melting Point Paraffin Microcapsules

Abstract:

The reaction mole ratio of monomers, pH value, reaction temperature and time factors directly affect the properties of urea-formaldehyde resin (UF)/low melting point paraffin wax microcapsules during in situ polymerization process. The effects of these factors on the thermal storage capacity, particle size and distribution were systematically discussed. When the reaction conditions were formaldehyde and urea molar ratio of 1.8:1, the prepolymerization system pH controlled at 8.5, the reaction temperature of 60 °C, the reaction time of 60 min, the synthetic phase change materials microcapsules have good morphology and thermal storage capacity.

• Periodical: Applied Mechanics and Materials (Volumes 321-324)
• Pages: 163-167
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.321-324.163
• Online since: June 2013
• Authors: Chang Zheng Xin, Li Na Wang, Xian Gan Huang, Zhi Shan Fan
• Keywords: In Situ Polymerization, Microcapsule, Phase Change Materials (PCM), Prepolymer

References

[1] Z.G. Jin, Y.D. Wang, J.G. Liu: Polymer. Vol. 49 (2008), pp.2903-2910

[2] W. Li, X.X. Zhang, X.C. Wang, J.J. Niu: Mater. Chem. Phys. Vol. 106 (2007), pp.437-442

[3] L. Yuan, G.Z. Liang, J.Q. Xie: Colloid. Polym. Sci. Vol. 285 (2007), pp.781-789

[4] T. Yin, M.Z. Rong, M.Q. Zhang, G.C. Yang: Compos. Sci. Technol. Vol. 67 (2007), pp.201-210

[5] J.F. Su, L.X. Wang, L. Ren: Colloids. Surf., A. Vol. 299 (2007), pp.268-275

[6] L. Yuan, G.Z. Liang, J.Q. Xie: Polymer. Vol. 47 (2006), pp.5338-5345