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

Ultra-high molecular weight polyethylene/polyvinyl chloride composite pipe and its manufacturing method

An ultra-high molecular weight, polyvinyl chloride technology, applied in the direction of pipes/pipe joints/fittings, hoses, pipes, etc., can solve problems that are difficult to meet sanitary technical standards, wear resistance, anti-adhesion, solvent resistance, etc. Problems such as high production costs are achieved to solve complex composite processes and low composite strength, highlighting substantive features, and simple manufacturing processes

Inactive Publication Date: 2011-12-28
SHANDONG KELI NEW MATERIAL CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are deficiencies in tensile strength, low shear strength, and poor creep resistance, which limit its application.
[0003] Toughened polyvinyl chloride (PVC) material has high tensile strength, high impact strength, and good rigidity, but its wear resistance, anti-adhesion, and solvent resistance are far inferior to ultra-high molecular weight polyethylene pipes, and it is difficult to meet relevant sanitary technical standards
Its application is also limited
[0004] The metal-plastic composite pipes in the prior art consume a large amount of metal materials. The manufacturing process requires flanging, welding flanges and other manufacturing processes. And the processing technology is complex, the production cost is high

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
  • Ultra-high molecular weight polyethylene/polyvinyl chloride composite pipe and its manufacturing method
  • Ultra-high molecular weight polyethylene/polyvinyl chloride composite pipe and its manufacturing method
  • Ultra-high molecular weight polyethylene/polyvinyl chloride composite pipe and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Example 1 Manufacture of an ultra-high molecular weight polyethylene modified polyvinyl chloride composite pipe with an outer diameter of 110 mm and an inner diameter of 96 mm

[0062] It is characterized in that comprising the steps of:

[0063] a. Manufacture of UHMWPE inner tube

[0064] ① Ingredients

[0065] Accurately weigh 50 kilograms of ultra-high molecular weight polyethylene (UHMWPE) with a viscosity-average molecular weight of 2,500,000, 2.5 kilograms of polyethylene wax with a molecular weight of 3000-5000 and mix well, for subsequent use;

[0066] ②Extrusion molding

[0067] Send the ultra-high molecular weight polyethylene and polyethylene wax mixture uniformly mixed in step ① into the screw extruder, and extrude through a pipe die. The main operating conditions are:

[0068] Cylinder temperature, ℃

[0069] District 1 120, District 2 160, District 3 150, District 4 190;

[0070] mold temperature, ℃

[0071] District 1 160, District 2 190, District ...

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 an ultra-high molecular weight polyethylene / polyvinyl chloride composite pipe and a manufacturing method thereof. It is composed of an ultra-high molecular weight polyethylene inner tube and a polyvinyl chloride outer wall, wherein: a. The ultra-high molecular weight polyethylene inner tube includes the following raw material components in parts by weight: ①Ultra-high molecular weight polyethylene Molecular weight polyethylene 100, ② polyethylene wax with molecular weight 2000-10000 1-10, b. PVC outer wall includes: polyvinyl chloride resin (PVC) 100, impact modifier 5-15, heat stabilizer 0.5-8 , lubricant 0.07-1, appropriate amount of pigment. The invention provides an ideal ultra-high molecular weight polyethylene / polyvinyl chloride composite pipe material with wear resistance, corrosion resistance, high strength, creep resistance, and firm combination of inner pipe and outer wall, and a manufacturing method with firm compounding and low production cost . It is suitable for conveying corrosive, adhesive and strong abrasive materials.

Description

technical field [0001] The invention relates to an ultra-high molecular weight polyethylene / polyvinyl chloride composite pipe and a manufacturing method thereof. Background technique [0002] Ultra-high molecular weight polyethylene (UHMWPE) pipes are wear-resistant, corrosion-resistant, chemically stable, and have low surface polarity. fluid material. However, there are deficiencies in tensile strength, low shear strength, and poor creep resistance, which limit its application. [0003] Toughened polyvinyl chloride (PVC) material has high tensile strength, high impact strength, and good rigidity, but its wear resistance, anti-adhesion, and solvent resistance are far inferior to ultra-high molecular weight polyethylene pipes, and it is difficult to meet relevant sanitary technical standards. Its application is also limited. [0004] The metal-plastic composite pipes in the prior art consume a large amount of metal materials. The manufacturing process requires flanging, we...

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 Patents(China)
IPC IPC(8): F16L11/20F16L11/04
Inventor 王庆昭高步良于元章
Owner SHANDONG KELI NEW MATERIAL CO LTD
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