Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Automatic production method of polytetrafluoroethylene (PTFE) dispersion resin

A polytetrafluoroethylene and dispersing resin technology, which is applied in the field of fluoroplastics manufacturing and production, can solve the problems of inability to carry out continuous production and a large amount of manual operation, and achieve the effects of good temperature and pressure resistance, good uniformity and long length.

Inactive Publication Date: 2013-07-24
天津市天塑科技集团有限公司技术中心
View PDF5 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the particularity of PTFE, this production method cannot be used for continuous production. During the production process, it is necessary to manually control the operation status of each part of the production line, and there are certain requirements for the operator's work experience. The manual operation is large during the production process, and the product is stable. Sex is significantly affected by manipulation

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
  • Automatic production method of polytetrafluoroethylene (PTFE) dispersion resin
  • Automatic production method of polytetrafluoroethylene (PTFE) dispersion resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] In view of the polytetrafluoroethylene (PTFE) that can be used has multiple grades, and the polytetrafluoroethylene (PTFE) of different grades has different molecular weight distributions and characteristics, the present invention selects and uses molecular weight in 1 million-5 million, particle Dispersion resin with a diameter of 0.1-0.5 microns, together with suitable auxiliary components, constitutes a two-member mixed component, and different process formulations and corresponding process conditions are determined for different purposes. The main process includes: 1. Raw material mixing, 2. Aging and infiltration, 3. Pre-pressing molding, 4. Pushing molding, 5. Extrusion position measurement and feedback adjustment, 6. High temperature sintering, 7. Quenching treatment, 8. Speed ​​measurement and winding adjustment after sintering, 9. Finished winding. The manufacture polytetrafluoroethylene dispersion resin (PTFE) product is carried out by process below.

[0024]...

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 fluorine plastic manufacturing techniques and discloses an automatic production method of polytetrafluoroethylene (PTFE) dispersion resin. The automatic production method of the PTFE dispersion resin comprises the steps of PTFE raw material mixing, preforming, extrusion forming, speed and location tracking of extrudate, signal feedback for controlling an extruder, sintering forming, quenching treatment, position measurement and feedback control of rolling parts, forming and rolling. According to the invention, the PTFE dispersion resin producing technology is improved through introducing an automatic control system, so that the method for continuously, uniformly and stably producing the PTFE dispersion resin is provided.

Description

technical field [0001] The invention relates to the production technology of fluoroplastics, and relates to an automatic production method of polytetrafluoroethylene dispersion resin (PTFE). Background technique [0002] Polytetrafluoroethylene (PTFE) has the best electrical insulation, chemical stability, and corrosion resistance among all plastics, and is one of the materials with the best corrosion resistance in the world today. However, polytetrafluoroethylene dispersion resin (PTFE) has an extremely narrow phase change range and loose elastic characteristics, making it difficult to extrude or injection mold like ordinary thermoplastics. Fine powder (PTFE dispersion resin) made by emulsion polymerization, adding an appropriate organic solvent to make a paste mixture for extrusion, is a common production method for PTFE dispersion resin. However, due to the particularity of PTFE, this production method cannot be used for continuous production. During the production proce...

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
IPC IPC(8): B29C47/92B29C67/04B29C69/02B29B11/12B29K27/18B29C48/92
CPCB29C48/92B29C2948/9258B29C2948/92704B29C2948/92895B29C2948/92933
Inventor 谢学民尹陆生段连群赵咏梅王润增李栋李智伟吴震董红霞戴靖马力强萱齐立红
Owner 天津市天塑科技集团有限公司技术中心
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com