Method for synthesis of strontium-barium titanate nanotubes

A technology for synthesizing barium strontium titanate and barium strontium titanate, which is applied in the fields of filament/thread forming, textile and paper making, fiber treatment, etc., to achieve the effect of low cost and high sample purity
CN103526337AInactive Publication Date: 2014-01-22TONGJI UNIV
4 Cites 14 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TONGJI UNIV
Publication Date
2014-01-22
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a method for synthesis of strontium-barium titanate nanotubes. PVP is added into DMF to form a core-layer spinning solution; Ba(COOH)2 and Sr(COOH)2 are added into glacial acetic acid to obtain a first mixture, C16H36O4Ti is added into acetylacetone to obtain a second mixture, then PVP is added into alcohol to obtain a third mixture, and the three mixtures are mixed to form a shell-layer spinning solution; the prepared core-layer spinning solution is added into an inner tube, the shell-layer spinning solution is added into an outer tube, two truncated syringe needles with different diameters are sheathed together to form a coaxial two-layer spinneret, and an static electricity spinning method is adopted for spinning. The prepared product has a core-layer @ shell-layer structure, the core layer is PVP, the shell layer is PVP / [Ba(COOH)2+Sr(COOH)2+C16H36O4Ti), after sintering, PVP is volatilized at the high temperature, and the strontium-barium titanate nanotubes with the outer diameter of 200-400 nm, the inner diameter of 50-100 nm and the length of 10-100 [mu]m are formed. Compared with the prior art, the method has the advantages of being simple and feasible to implement, low in cost, convenient and fast, high in purity of the prepared sample, and can used for large scale production.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of preparation of functional materials, and in particular relates to a method for synthesizing barium strontium titanate nanotubes. Background technique

[0002] Barium strontium titanate is a typical perovskite-type ferroelectric, which has spontaneous polarization, and the direction of spontaneous polarization can be reversibly rotated with the applied electric field. At the same time, barium strontium titanate also has excellent piezoelectricity, Pyroelectric performance, large nonlinear optical coefficient and dielectric constant make it exhibit in many fields such as storage elements, piezoelectric response scanning probe microscopes, infrared thermal imaging cameras, nonlinear optical devices, capacitors, ultrasonic generators, etc. broad application prospects.

[0003] With the miniaturization of electronic components, the synthesis and performance research of barium strontium titanate nanomaterials ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More