Fabrication of SiC micro tube materials through electrospinning method

耐火非织造布作为催化剂载体和隔热材料受到广泛关注。本研究的目的是对静电纺丝法纺丝的SiC-粘结剂混合微纤维进行热处理，制备SiC微纤维和微管。通过优化陶瓷粉、PVB粘结剂和溶剂的组成，成功纺出了sic -粘结剂混杂纤维。经1750℃热处理后，固载量为40 vol.%的SiC- pvb混纺纤维保持了纤维结构。此外，采用芯环喷嘴电纺丝制备了微管SiC。

The refractory nonwoven has attracted many attentions as catalyst carriers and heat insulating materials. The purpose of this study to fabricate SiC microfibers and microtubes by heat treatment of SiC-binder hybrid micro fibers spun by electrospinning method. The SiC-binder hybrid fiber was successfully spun by optimization of composition of ceramics powders, PVB binder, and solvent. The spun SiC-PVB hybrid fibers with solid loading of 40 vol.% maintained fiber structure after heat treatment at 1750 degrees C. Furthermore, the micro tube SiC was also successfully fabricated by electro spinning using core-rim nozzle.