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本文研究“吸干乳剂”的制备比较不同的油及不同的硅胶制备的“吸干乳剂”的缓释作用。亲水性硅胶(Tixosil 38)由碱性硅酸盐溶液加酸沉淀而得。疏水性硅胶有两种,一种由二甲基二氯硅烷与水在高温以气化反应而成;另一种由亲水性硅胶粉与三甲基氯硅烷化合而成。油相主要用蓖麻油及硅泊,蓖麻油主要由三蓖麻酸的甘油酯组成,硅油是聚二甲基硅烷,平均分子量23000,平均SiO(CH_3)_2基数为310,粘度在25℃约500泊。
In this paper, the preparation of “suck dry emulsion” is compared with the slow release of “suck dry emulsion” prepared by different oils and different silica gel. Hydrophilic silica gel (Tixosil 38) from alkaline silicate solution obtained by acid precipitation. There are two kinds of hydrophobic silica gel, one by dimethyl dichlorosilane and water at high temperature to gasification reaction; the other by the hydrophilic silica powder and trimethylchlorosilane together. Castor oil is mainly used for the oil phase and castor oil. The castor oil consists mainly of glycerol esters of triricinoleic acid. The silicone oil is polydimethylsilane, with an average molecular weight of 23,000, an average SiO (CH 3) _ 2 base number of 310 and a viscosity of about 25 ° C 500 poise.