Continuous silica glass fiber produced by sol-gel process

Applications of advanced hybrid organic–inorganic nanomaterials: from laboratory to market

“…Indeed because the rheology of the colloidal hybrid dispersions can be easily adjusted, hybrid materials can be processed through many methodologies used for organic polymers among them: film deposition methods, 120 fiber extrusion, 120 fiber pulling, 121 electrospinning, 122-124 electrochemical deposition, 120 (soft)lithography based techniques (dip-pen, X-Ray. .…”

Engineering and optimization of nano- and mesoporous silica fibers using sol–gel and electrospinning techniques for sorption of heavy metal ions

“…Various kinds of one-dimensional nano/micromaterials, including fibers [18], belts [19], tubes [20], and core-shell structured fibers [21] have been obtained with this method. Preparation of SiO 2 fiber using the sol-gel method has been investigated by several groups, and mature techniques have been developed [22][23][24]. Recently, fabrication of SiO 2 nanofibers with sol-gel and electrospinning techniques was reported by Yamaguchi et al [25].…”

Preparation of SiOC/HfO2 fibers from silicon alkoxides and tetrachloride hafnium by a sol–gel process

“…The optimized mole ratio of HfCl 4 /ALK is lower than 0.1, where ALK ¼TEOS þDMDES. The spinnablity of the TEOS-DMDES-HfCl 4 system is also sensitive to water and the mole ratio of H 2 O/Si should be less than 2 to avoid the formation of branched structure as sol-gel derived silica and SiOC fiber [12][13][14]. Solutions with a wide range of compositions are prepared to optimize the spinning process with the mole ratio HfCl 4 /ALK ¼0.01-0.2 and H 2 O/ALK ¼0-3.5 being the optimum ranges.…”

“…With in-situ HCl as catalyst TEOS and DMDES tend to form a linear PSO structure [12][13][14] which favors the fiber spinning. However, higher mole ratio of HfCl 4 in TEOS-DMDES-HfCl 4 will result in drastic lowering of pH of the solution due to the hydrolysis of HfCl 4 .…”

“…Solutions with a wide range of compositions are prepared to optimize the spinning process with the mole ratio HfCl 4 /ALK ¼0.01-0.2 and H 2 O/ALK ¼0-3.5 being the optimum ranges. This was followed by fabrication of silica [12,13] and SiOC fibers [14] by sol-gel method. Under this condition of HfCl 4 / ALK ¼0.07 and H 2 O/ALK ¼1.2, the solution shows good spinnability and PHfSO gel fibers with filament length of $ 1 m are obtained by hand.…”