正硅酸乙酯改性对二硼化锆陶瓷纤维抗氧化性能的影响研究  

Research of Effects of TEOS on The Anti-oxidant Property of ZrB2 Ceramic Fiber

作　　者：贾军[1] 耿冉[1] 邱显星[1] 孙泽玉[1] 韩克清[1,2] 余木火[1,2] 

机构地区：[1]东华大学材料学院,上海201620 [2]东华大学纤维改性国家重点实验室,上海201620

出　　处：《军民两用技术与产品》2013年第6期43-44,46,共3页Dual Use Technologies & Products

摘　　要：采用有机高分子助剂——聚乙烯醇、无机小分子——八水合氧氯化锆、柠檬酸、蔗糖、硼酸,通过有机、无机共混的方法,制得了二硼化锆陶瓷前驱体纤维;同时,添加正硅酸乙酯(TEOS)制得了改性纤维,在1600℃高温下裂解,制得了陶瓷纤维。结果表明,添加TEOS对ZrB2陶瓷纤维的抗氧化性能的提升有很大的作用,且不会改变ZrB2的晶型结构,所制得的陶瓷纤维形貌较好。ZrOCl2·8H2O, boric acid, sucrose, citric acid and PVA were used as raw materials and TEOS was added as additive, ZrB2 precursor fiber was prepared via dry spinnig, ZrB2 ceramic fibers and TEOS modified ZrB2 fibers were obtained after calcination at 1600℃. The results show that TEOS has a great effect on the anti-oxidant property of ZrB2, meanwhile, the addition of TEOS donot change the crystal structures of ZrB2. The ceramic fibers obtained have good morphology.

关 键 词：正硅酸乙酯 二硼化锆 抗氧化性 

分 类 号：TQ174.75[化学工程—陶瓷工业]