CAJ | 학술논문

以正硅酸乙酯、钛酸丁酯为原料，采用溶胶-凝胶法制备T iO2-SiO2复合溶胶，研究T i/Si摩尔比和乙醇稀释倍数对复合溶胶密度、固含量、折射率、黏度及凝胶时间的影响．结果表明，随着T i/Si摩尔比和乙醇稀释倍数的增大，复合溶胶的黏度、固含量、密度和折射率随之减小，凝胶时间延长．SiO2-TiO2复合溶胶的最佳Ti/Si摩尔比为3，EtOH稀释倍数为5．
이정규산을지、태산정지위원료，채용용효-응효법제비T iO2-SiO2복합용효，연구T i/Si마이비화을순희석배수대복합용효밀도、고함량、절사솔、점도급응효시간적영향．결과표명，수착T i/Si마이비화을순희석배수적증대，복합용효적점도、고함량、밀도화절사솔수지감소，응효시간연장．SiO2-TiO2복합용효적최가Ti/Si마이비위3，EtOH희석배수위5．
Using tetraethyl orthosilicate (TEOS)and tetrabutyl titivate(TBOT)as raw materials ,the com-posite TiO2-SiO2 sols have been prepared by sol-gel method .The influence of Ti/Si molar ratio and EtO H dilution multiples on the density ,content of solid ,refractive index ,viscosity and gel time of the composite TiO2-SiO2 sols were discussed .The results show that ,with the increase of Ti/Si molar ratio and EtO H dilution multiples ,the density ,content of solid ,refractive index and viscosity of the compos-ite TiO2-SiO2 sols decrease and the gel time also decreases .The appropriate Ti/Si molar ratio for com-posite TiO2-SiO2 sols is 3 and the EtOH dilution multiple is 5 .