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

Antifouling atactic polypropylene and modified superhigh-molecular-weight polyethylene composite pipe

A polyethylene composite pipe, ultra-high molecular weight technology, applied in the field of composite pipes, to achieve the effects of preventing secondary pollution, improving anti-fouling performance, and long service life

Active Publication Date: 2018-05-11
LINHAI WEIXING NEW BUILDING MATERIALS CO LTD
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary PPR pipes can no longer meet the current multi-functional needs. Combined with the excellent performance of modified ultra-high molecular weight polyethylene, a new type of anti-fouling pipe is prepared by compounding hot melt adhesive and ordinary PPR. Its excellent High-strength and anti-fouling properties have great market potential in high-end piping systems

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
  • Antifouling atactic polypropylene and modified superhigh-molecular-weight polyethylene composite pipe
  • Antifouling atactic polypropylene and modified superhigh-molecular-weight polyethylene composite pipe
  • Antifouling atactic polypropylene and modified superhigh-molecular-weight polyethylene composite pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] a) Preparation of compounded hot melt adhesive: put 6 kg of silane cross-linked modified polyethylene, 50 kg of maleic anhydride modified polyethylene, and 38 kg of maleic anhydride modified polypropylene in a mixer and stir for 3 minutes, then add 2 kg of butyl titanate was stirred for 5 minutes;

[0022] b) Preparation of PP-R outer layer formula: 100 kg of random copolymerized polypropylene, 2 kg of black masterbatch, stirred for 5 minutes and left to stand for use;

[0023] c) Preparation of modified ultra-high molecular weight polyethylene inner layer formula:

[0024] Step 1: Preparation of nano-titanium dioxide antibacterial masterbatch:

[0025] Put 50 kilograms of granular Type II PERT in a mill and grind it into powder, then mix 50 kilograms of PERT powder, 10 kilograms of nano-titanium dioxide, and 2 kilograms of PE wax in a high-mixer for 6 minutes. The stirred raw materials are poured into the twin-screw granulator for granulation, and the nano-titanium d...

Embodiment 2

[0031] a) Preparation of compounded hot melt adhesive: put 7.5 kg of silane cross-linked modified polyethylene, 40 kg of maleic anhydride modified polyethylene, and 25 kg of maleic anhydride modified polypropylene in a mixer and stir for 3 minutes, then add 3 kg of butyl titanate was stirred for 5 minutes.

[0032] b) Preparation of PP-R outer layer formula: 100 kg of random copolymerized polypropylene and 3 kg of black masterbatch were stirred for 5 minutes and left to stand for use.

[0033] c) Preparation of modified ultra-high molecular weight polyethylene inner layer formula:

[0034] Step 1: Preparation of nano-titanium dioxide antibacterial masterbatch:

[0035] Put 50 kilograms of granular Type II PERT in a mill and grind it into powder, then mix 50 kilograms of PERT powder, 10 kilograms of nano-titanium dioxide, and 2 kilograms of PE wax in a high-mixer for 6 minutes. The stirred raw materials are poured into the twin-screw granulator for granulation, and the nano-t...

Embodiment 3

[0041] a) Preparation of compound hot melt adhesive: put 4 kg of silane cross-linked modified polyethylene, 40 kg of maleic anhydride modified polyethylene, and 30 kg of maleic anhydride modified polypropylene in a mixer and stir for 3 minutes, then add 3.5 kg of butyl titanate was stirred for 5 minutes.

[0042] b) Preparation of PP-R outer layer formula: 100 kg of random copolymerized polypropylene and 4 kg of black masterbatch were stirred for 5 minutes and left to stand for use.

[0043] c) Preparation of modified ultra-high molecular weight polyethylene inner layer formula:

[0044] Step 1: Preparation of nano-titanium dioxide antibacterial masterbatch:

[0045] Put 50 kilograms of granular Type II PERT in a mill and grind it into powder, then mix 50 kilograms of PERT powder, 10 kilograms of nano-titanium dioxide, and 2 kilograms of PE wax in a high-mixer for 6 minutes. The stirred raw materials are poured into the twin-screw granulator for granulation, and the nano-tit...

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

PropertyMeasurementUnit
thermal resistanceaaaaaaaaaa
Login to View More

Abstract

The invention relates to an antifouling atactic polypropylene and modified superhigh-molecular-weight polyethylene composite pipe. The pipe is prepared by adopting a co-extrusion integrated forming process for processing an inner layer, a middle layer and an outer layer in a molten state, wherein the inner layer of the composite pipe is a modified superhigh-molecular-weight polyethylene layer, themiddle layer is a compound hot melt adhesive layer, and the outer layer is an atactic copolymerization polypropylene (PPR) layer. In the invention, modified superhigh-molecular-weight polyethylene, ahot melt adhesive and copolymerized polypropylene are compounded in the molten state, and compounding of the hot melt adhesive guarantees a dense structure and complete integration between two material composite layers. The antifouling PPR and the modified superhigh-molecular-weight polyethylene composite pipe of the present invention has good processing performance, good low-temperature resistance, fouling resistance and low manufacturing cost, and is a novel pipe for transferring hot and cold water, and is applicable to waterway systems of high-end home furnishings.

Description

technical field [0001] The invention belongs to the technical field of composite pipes, and in particular relates to a high-temperature resistant anti-scaling random polypropylene and modified ultra-high molecular weight polyethylene composite pipe that can be used in hot water pipeline systems. Background technique [0002] Ultra-high molecular weight polyethylene has the advantages of self-lubrication, super wear resistance, corrosion resistance, and high strength, but it is very difficult to process. The modified ultra-high molecular weight polyethylene has good processing performance and maintains the original performance, so it has great market application prospects. Ordinary PPR pipes can no longer meet the current multi-functional needs. Combined with the excellent performance of modified ultra-high molecular weight polyethylene, a new type of anti-fouling pipe is prepared by compounding hot melt adhesive and ordinary PPR. Its excellent High-strength and anti-fouling...

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): C08L23/06C08L23/08C08K3/22C08J3/22C09J123/08C09J123/14C09J123/26C09J11/06F16L9/12B32B27/32B32B27/08B32B27/18B32B1/08B29C47/06B29L23/00B29L9/00
CPCB29C48/09B29C48/18B29L2009/00B29L2023/22B32B1/08B32B27/08B32B27/18B32B27/32B32B2307/306C08J3/226C08J2323/06C08J2423/06C08J2423/08C08K2003/2241C08K2201/011C08L2201/08C08L2203/18C08L2205/03C09J11/06C09J123/0869F16L9/121C08L23/14C08L23/26
Inventor 高莉张伟娇毛星剑黄咸伟
Owner LINHAI WEIXING NEW BUILDING MATERIALS 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