本文研究了 Ti(OC_4H(?))_4水解制备 TiO_2纤维的凝胶化行为和热处理。测定了水解和缩聚过程中纤维的可拉丝性。在 r<2时(r=H_2O/Ti(OC_4H_9)_4摩尔比),随乙醇量增加、盐酸量减小,T_(gel)变短;当r≥2时,随乙醇量增加、盐酸量减小,T_(gel)延长。当溶液粘度达到500kPa.s 时,就显示出可拉丝性。随热处理温度升高,发生了非晶态至锐钛矿、然后转变成金红石的相变过程,并且 TiO_2纤维的直径缩减了20～25%。 In this paper, the gelation behavior and heat treatment of TiO 2 fibers prepared by hydrolysis of Ti (OC_4H (?)) _4 were studied. The drawability of the fibers during hydrolysis and polycondensation was determined. At r <2 (r = H_2O / Ti (OC_4H_9) _4), the amount of hydrochloric acid decreased and the gel became shorter with the increase of ethanol concentration. When r≥2, the amount of hydrochloric acid decreased Small, T_ (gel) extended. When the solution viscosity reaches 500 kPa.s, it shows spinnability. With the increase of heat treatment temperature, the phase transition from amorphous to anatase to rutile occurs, and the diameter of TiO_2 fiber decreases by 20-25%.