Method for preparing polytetrafluoroethylene ordered template based on temperature-controllable, pressure-controllable and friction film forming device

A technology of polytetrafluoroethylene and film-forming devices, which can be applied to flat products, other household appliances, household appliances, etc., and can solve problems such as epitaxial growth of difficult polymer materials

Active Publication Date: 2015-09-02
FUDAN UNIV
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the distance between polymer molecular chains is generally larger than the lattice distance of inorganic crystal materials, it is difficult to achieve ordered epitaxial growth of polymer materials on inorganic crystal templates.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing polytetrafluoroethylene ordered template based on temperature-controllable, pressure-controllable and friction film forming device
  • Method for preparing polytetrafluoroethylene ordered template based on temperature-controllable, pressure-controllable and friction film forming device
  • Method for preparing polytetrafluoroethylene ordered template based on temperature-controllable, pressure-controllable and friction film forming device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] This example illustrates that by adjusting temperature, pressure, and speed, polytetrafluoroethylene ordered templates with different surface morphologies can be obtained. Proceed as follows:

[0023] 1) Select rod-shaped PTFE with a diameter of 1 cm and 8 glass slides with a length of 7.6 cm and a width of 2.4 cm, and then ultrasonically clean them with acetone, alcohol, and deionized water, and dry them for later use;

[0024] 2) Set the temperature at 120°C (or 125°C), the pressure at 20kg (or 10kg), and the speed at 0.8mm / s (or 0.6mm / s);

[0025] 3) According to the specific preparation steps (2)-(5) of the PTFE ordered template in the above-mentioned content of the invention;

[0026] 4) Observe the surface morphology of the prepared PTFE template with an atomic force microscope, and observe the influence of temperature, speed, and pressure on the template morphology.

[0027] Typical analysis results are attached figure 2 shown. The image scanning area is 20 μ...

Embodiment 2

[0029] This example illustrates a method for epitaxially growing a P(VDF-TrFE) ferroelectric polymer film based on a PTFE template. Proceed as follows:

[0030] 1) According to the specific preparation steps (1)-(5) of the PTFE ordered template, prepare the PTFE ordered template, wherein: control the temperature of the hot plate at 120°C, apply a pressure of 15kg, and rub the speed of 0.8mm / s;

[0031] 2) Configure a P(VDF-TrFE) butanone solution with a mass concentration of 1% for the preparation of P(VDF-TrFE) thin films;

[0032] 3) Spin-coat the P(VDF-TrFE) solution on the prepared PTFE template with a spin-coating speed of 1000 rpm; the P(VDF-TrFE) film can be formed after the solvent evaporates;

[0033] 4) Spin-coat a layer of P(VDF-TrFE) film on the surface of a clean glass slide as a reference sample, and compare it with the structure of the film formed on the PTFE ordered template;

[0034] 5) Both types of films were annealed at 135°C for 5 hours to increase their...

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

PUM

No PUM Login to view more

Abstract

The invention relates to a method for preparing polytetrafluoroethylene (PTFE) ordered template based on temperature-controllable, pressure-controllable and friction film forming device. The device consists of a numerical control motor, a temperature control module and a pressure control module. Due to the adoption of the device, ordered PTFE templates are prepared on various rigid substrate materials such as glass, ITO and a silicon wafer, and the PTFE templates with different film thicknesses are acquired by controlling the parameters such as temperature, pressure and friction film forming speed; the templates have ordered heights, and can be used for epitaxial growth of various organic semiconductors and ferroelectric polymer films.

Description

Technical field [0001] The present invention involves a method of preparation of polytetrafluoroethylene (PTFE) for the controlled temperature, controlling pressure, and friction film formation device. Background technique [0002] Preparation of high crystalline thin film can effectively improve the performance of related device.For specific inorganic materials, the orderly extension of the inorganic material can be achieved by selecting the inorganic single -crystal substrate that matches the crystal grid to obtain a high -quality crystal thin film.Because the distance between polymer molecular chain is generally greater than the lattice spacing of inorganic crystal materials, it is difficult to achieve the orderly extension of the polymer material on the inorganic crystal template.The preparation of high -quality polymer crystal crystals has always been urgent problems.Seeking a simple and commonly used polymer crystal template preparation method is a feasible method for the g...

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

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B29D7/00
Inventor 朱国栋浮宗元
Owner FUDAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap