Preparation of Porous Silicone Resin Sheet with Phase Inversion in Parallel with Non Solvent Induced Phase Separation and Application to Hollow Particle Formation - Materials Sciences and Applications

MSA > Vol.5 No.9, July 2014

Preparation of Porous Silicone Resin Sheet with Phase Inversion in Parallel with Non Solvent Induced Phase Separation and Application to Hollow Particle Formation ()

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DOI: 10.4236/msa.2014.59067 3,721 Downloads 4,665 Views Citations

Author(s)

Takuya Yokoyama, Yoshinari Taguchi, Masato Tanaka

Affiliation(s)

Graduate School of Science and Technology, Niigata University, Niigata, Japan.

ABSTRACT

We have tried to prepare the porous silicone resin sheet with the phase inversion method in parallel with the non solvent induced phase separation method. In the experiment, ethyl acetate and water were adopted as a good solvent and a poor solvent for silicone resin, respectively and ethyl alcohol as an amphiphilic solvent was used to increase the solubility of ethyl acetate in water and decrease the interfacial tension by mass transfer from water to ethyl acetate. The concentration of silicone resin in ethyl acetate and the oil soluble surfactant species were changed. Increasing the concentration of silicone resin could depress coalescence between the water droplets in the (W/O) dispersion and increase the porosity and pore number density of silicone resin sheet. Span 80 among the oil soluble surfactant species made the porosity and pore number density larger. The effect of physical proparties of liquids concerned on the porosity and pore number density was discussed on the basis of dispersing behavior of liquid droplets in the liquid-liquid dispersion. The hollow silicone resin particles could be prepared by applying the preparation method presented here.

KEYWORDS

Porous Silicone Resin Sheet, Non Solvent Induced Phase Separation, Phase Inversion, Hollow Silicone Resin Particles

Share and Cite:

Yokoyama, T. , Taguchi, Y. and Tanaka, M. (2014) Preparation of Porous Silicone Resin Sheet with Phase Inversion in Parallel with Non Solvent Induced Phase Separation and Application to Hollow Particle Formation. Materials Sciences and Applications, 5, 649-659. doi: 10.4236/msa.2014.59067.

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