CAJ | 학술논문

以甲基三氯硅烷、氢气、空气为原料，制备气相法白炭黑。考察了原料配比、骤冷介质温度、合成炉温度、原料气速对白炭黑的比表面积、平均粒径的影响。结果表明：甲基三氯硅烷、氢气的量之比与白炭黑的比表面积成反比；合成炉温、骤冷介质温度与白炭黑的比表面积、平均粒径成反比；原料气速与白炭黑的比表面积成正比，与平均粒径成反比。较佳工艺为：甲基三氯硅烷、氢气与空气的量之比为0.33：0.47：1，冷却介质温度80~90℃，炉温800~850℃，气体流速5~6 m/s。
이갑기삼록규완、경기、공기위원료，제비기상법백탄흑。고찰료원료배비、취랭개질온도、합성로온도、원료기속대백탄흑적비표면적、평균립경적영향。결과표명：갑기삼록규완、경기적량지비여백탄흑적비표면적성반비；합성로온、취랭개질온도여백탄흑적비표면적、평균립경성반비；원료기속여백탄흑적비표면적성정비，여평균립경성반비。교가공예위：갑기삼록규완、경기여공기적량지비위0.33：0.47：1，냉각개질온도80~90℃，로온800~850℃，기체류속5~6 m/s。
Fumed silica was prepared with CH3 SiCl3 ,hydrogen gas and air as the raw materials. The effects of the ratio of the raw materials,the temperature of quenching medium and synthesis oven,and the gas velocity of the material on the specific surface area,and the average diameter of fumed silica were investiga-ted. Results showed that the surface area of fumed silica is inversely proportional to the ratio of CH3 SiCl3 and hydrogen gas and the specific surface area and the average diameter d50 are also inversely proportional to the temperature of quenching medium and the oven,whereas the gas velocity is proportional to the specific surface area,but inversely proportional to the average particle size d50. The optimal process is with a ratio of methyl trichlorosilane,hydrogen gas and air of 0. 33:0. 47:1 at a cooling medium temperature of 80~90℃ and an ov-en temperature of 800~850℃,and the gas velocity of 5~6 m/s.