粉体工学会誌
Online ISSN : 1883-7239
Print ISSN : 0386-6157
ISSN-L : 0386-6157
壁膜に炭化ケイ素粒子を含有するマイクロカプセルの調製
木村 勇雄相馬 亮齋藤 夏風田中 真人
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ジャーナル フリー

1994 年 31 巻 1 号 p. 10-17

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Microcapsules, of which the wall was made of polystyrene, with a core material of water were prepared by the drying-in-liquid method. In order to improve the thermal conductivity of the wall material, an attempt was made to get silicon carbide (SiC) particles to disperse in it. SiC powder had been treated with a silane coupling agent to change its affinity for an oil phase. When untreated SiC powder was added, spherical shaped single cellular microcapsules were obtained and SiC particles were localized at the surface of the wall material. When treated SiC powder was added, irregular shaped multicellular microcapsules were obtained and SiC particles were dispersed in the wall material. The formation mechanism of the microcapsules was proposed on the basis of the stabilizing effect of the SiC particles on coalescence between the (w/o) -droplets.
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