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

Preparation method and device of polyethylene molten spun filament of ultra-high molecular weight

An ultra-high molecular weight, melt-spinning technology, which is applied in the field of melt-spinning, can solve problems such as uneven thread thickness, molecular rearrangement, and inability to ensure uniform molecular arrangement, so as to ensure the melting effect and simple process Effect

Active Publication Date: 2015-08-26
郑海云
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, for the melting technology of ultra-high molecular weight polyethylene, the silk produced by the melting process, in the melting process, due to the low melting point of ultra-high molecular weight polyethylene, it is easy to degrade when the temperature is high, and the molecular weight is low when the temperature is low. Complete rearrangement cannot be achieved, and the uniform arrangement of molecules cannot be guaranteed, resulting in uneven thickness of silk threads

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
  • Preparation method and device of polyethylene molten spun filament of ultra-high molecular weight
  • Preparation method and device of polyethylene molten spun filament of ultra-high molecular weight

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 Shown, the preparation method and device of ultra-high molecular weight polyethylene melt spinning,

[0025] (1) Raw material extrusion treatment: the raw material is extruded to the melting zone through the sleeve-type die, and the inside of the sleeve-type die is vacuum. The sleeve-type die includes a sleeve and a screw inside the sleeve. There are several rifling lines, and the end of the sleeve is extended with a melting zone and a dense zone. The inside of the sleeve is a vacuum, and the temperature of the melting zone is 350 degrees. Under the continuous extrusion of subsequent raw materials, the melted raw materials pass through the dense zone. The wire hole at the lower end of the tube is extruded into a wire, and the dense area is a bent tube whose radius decreases linearly to the lower end;

[0026] (2) Silk thread curing treatment: the silk thread is cured by a warm water tank, and the water temperature in the warm water tank is 50 degrees. ...

Embodiment 2

[0030] Such as figure 2 Shown, the preparation method and device of ultra-high molecular weight polyethylene melt spinning,

[0031] (1) Raw material extrusion treatment: the raw material is extruded to the melting zone through the sleeve-type head. The sleeve-type head includes a sleeve and a screw inside the sleeve. There is a melting zone and a dense zone extending from the inside of the sleeve. The inside of the sleeve is vacuum, and the temperature of the melting zone is 360 degrees. Under the continuous extrusion of subsequent raw materials, the melted raw materials are extruded into silk threads through the outlet hole at the lower end of the dense zone. , the dense area is a bent tube and its radius decreases linearly to the lower end.

[0032] (2) Silk thread curing treatment: the silk thread is cured by a warm water tank, and the water temperature in the warm water tank is 50 degrees.

[0033] (3) Silk thread stretching treatment: the thread treated in step (2) is...

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 discloses a preparation method and device of a polyethylene molten spun filament of ultra-high molecular weight. On the basis of a conventional extruder, the structure of the extruder is improved, an end part of a sleeve extends out of a melting region and a compaction region, a raw material is extruded, melted and extruded into a silk, the silk is cured, reheated and drawn into a finished filament. The integral structure and process are simple; when the extruder is in a continuous working mode, the sleeve is a vacuum section, and the temperature of a melting region is 350 DEG C, so the melting effect of the polyethylene can be effectively protected without degradation.

Description

technical field [0001] The invention relates to melt spinning, in particular to a preparation method and device for melt spinning of ultra-high molecular weight polyethylene. Background technique [0002] At present, for the melting technology of ultra-high molecular weight polyethylene, the silk produced by the melting process, in the melting process, due to the low melting point of ultra-high molecular weight polyethylene, it is easy to degrade when the temperature is high, and the molecular weight is low when the temperature is low. Complete rearrangement cannot be achieved, and the uniform arrangement of molecules cannot be guaranteed, resulting in uneven thickness of silk threads. Contents of the invention [0003] The invention provides a preparation method and device for melt spinning of ultra-high molecular weight polyethylene to solve the above problems. [0004] In order to solve the above-mentioned technical problems, a technical solution adopted in the present...

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): D01D13/00D01D5/08
CPCD01D5/08D01D13/00
Inventor 俞金金
Owner 郑海云
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