Preparation of K2Ti6O13 fibers by electrospinning for near-infrared reflectivity

被引：18
|
作者：
Jin, Xiaotong [1 ,2 ]
Yuan, Kangkang [3 ]
Xie, Yongshuai [1 ,2 ]
Xu, Chonghe [1 ,2 ]
Wang, Lin [1 ,2 ]
Wang, Xinqiang [1 ,2 ]
Zhang, Guanghui [1 ,2 ]
Zhu, Luyi [1 ,2 ]
Xu, Dong [1 ,2 ]
机构：
[1] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China
[2] Shandong Univ, Inst Crystal Mat, Jinan 250100, Shandong, Peoples R China
[3] Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Shandong, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2019年 / 45卷 / 11期
基金：
中国国家自然科学基金;
关键词：
Near-infrared reflectivity; Electrospinning; Titanates; K(2)Ti(6)O(13 )fibers; TITANATE WHISKERS; SOL-GEL; POTASSIUM; MICROSTRUCTURE; CALCINATION; ACID;
D O I：
10.1016/j.ceramint.2019.04.126
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Ceramic coatings have been widely used in industrial fields. K2Ti6O13 fibers could be a potential coating material for low thermal conductivity, high mechanical strength and infrared reflectivity. The precursor fibers, using potassium acetate (CH3COOK) and tetrabutyl titanate (TROT) as potassium and titanium sources, were prepared by the electrospinning technique with the sol-gel method. To prepare K2Ti6O13 fibers, the mole ratio of K/Ti was adjusted from 1:2 to 1:3. The transformation of other phases of potassium titanates was characterized by XRD patterns and Raman spectra. The effects of mole ratio of K/Ti on morphology of samples have been investigated. Well-crystallized fibers were prepared with single-crystal K2Ti6O13 structure. The corresponding morphology and microstructure evolution were studied by SEM and TEM. The as-obtained K2Ti6O13 fibers possessed the high near-infrared (NIR) reflectivity of 98%.
引用
收藏
页码：14198 / 14204
页数：7
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