阻抗渐变材料在医用可穿戴设备中起着重要作用。为了实现不同材料之间的相互匹配特性,低介电阻抗渐变材料的研究尤为重要。利用静电纺丝的方法,设计制备了具有阻抗渐变性的低介电钛酸钡(BaTiO3)/聚偏氟乙烯(PVDF)复合纤维膜。结果表明：BaTiO3纳米粒子可在纤维网络中均匀分布,通过调节其质量分数,能够有效调节BaTiO3/PVDF复合纤维膜的介电常数在1~7的范围内,BaTiO3/PVDF复合纤维膜对不同的电场频率具有不敏感性。BaTiO3/PVDF复合纤维膜还具有良好的力学性能,能够有效满足可穿戴设备的材料需求。
Impedance gradient materials have played an important role in the medical wearable devices.For realizing the matching character between different materials,the research about low-dielectric materials with impedance gradi-ent is particularly important.By means of the electrospinning,low-dielectric barium titanate (BaTiO3 )/polyvinyli-dene-fluoride (PVDF)composite fibrous mat with impedance gradient was designed and prepared.The results show that the BaTiO3 nano-particles can distribute in the fiber uniformly.By adj usting the mass fraction of nano-particles, the dielectric constant of BaTiO3/PVDF composite fibrous mat can arrange from 1 to 7,and it is also insensible to the different frequencies of electric field.BaTiO3/PVDF composite fibrous mat possesses good mechanical property and can meet the requirements of the wearable device materials.
参考文献
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%