HDPE (high-density polyethylene) double-wall corrugated pipe with high ring stiffness

A technology of double-wall bellows and rigidity, applied in the direction of slender components, building components, etc., can solve the problems of low ring stiffness that cannot become the mainstream of the market, and achieve the effect of good processing performance and improved ring stiffness

Inactive Publication Date: 2012-11-21
SINOMACH GENERAL MACHINERY SCIENCE & TECHNOLOGY CO LTD
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the ring stiffness of ordinary HDPE double-wall corrugated pipes on the market is generally 4KN / M 2 , 8KN / M 2 , that is, SN4 and SN8 pipes on the market have low ring stiffness and can only meet general engineering needs. Although PP high-rigidity pipes have appeared in relevant reports in recent years, due to processing equipment, raw materials and other reasons, they have not been able to become market favorites. Mainstream, in order to meet the market demand, our company introduces new main and auxiliary materials according to the existing equipment, optimizes the design formula, and produces 12.5KN / M 2 ,16KN / M 2 Equal high rigidity series of pipes to meet the current needs of special projects for pipe performance

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: HDPE double-wall bellows of high ring stiffness, it comprises the raw material of following weight ratio:

[0036] HDPE 48

[0037] High modulus PP 18

[0038] Attapulgite 4

[0039] HDPE reinforced masterbatch 18

[0040] HDPE toughened masterbatch 24

[0041] Polyester modified acrylic resin 45

[0042] Silicone modified acrylic resin 2

[0043] ABS high rubber powder 5

[0044] Acrylic Impact Modifier ACR 2

[0045] Color masterbatch 4.

[0046] The preparation process of the high ring stiffness HDPE double-wall corrugated pipe of the present invention is as follows:

[0047] (1) Mixing: Pour high-density polyethylene, high modulus PP and other raw materials into the mixer according to the above ratio, mix the materials evenly, and transport them to the extruder through negative pressure;

[0048] (2) Plasticizing extrusion: the mixed material is heated, sheared, plasticized and extruded by the barrel and screw;

[0049] (3) Mold forming: the ...

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 an HDPE (high-density polyethylene) double-wall corrugated pipe with high ring stiffness. The HDPE double-wall corrugated pipe comprises the following raw materials in parts by weight: 47 to 49 parts of high-density polyethylene, 17 to 19 parts of high modulus propene polymer (PP), 3 to 5 parts of attapulgite, rigidity-reinforcing and tenacity-reinforcing master batch and the like. Due to the adoption of the formula of the HDPE double-wall corrugated pipe, the ring stiffness of the HDPE double-wall corrugated pipe can be greatly improved; due to the adoption of the attapulgite in the formula, the HDPE double-wall corrugated pipe has high water absorptivity and slurry making property; and due to the adoption of modified acrylic resin which has certain cohesiveness, the machining property is high.

Description

technical field [0001] The invention relates to the technical field of corrugated pipe preparation, and mainly relates to a high ring rigidity HDPE double-wall corrugated pipe, mainly aiming at improving the ring rigidity of the current domestic HDPE double-wall corrugated pipe. Background technique [0002] At present, the ring stiffness of ordinary HDPE double-wall corrugated pipes on the market is generally 4KN / M 2 , 8KN / M 2 , that is, SN4 and SN8 pipes on the market have low ring stiffness and can only meet general engineering needs. Although PP high-rigidity pipes have appeared in relevant reports in recent years, due to processing equipment, raw materials and other reasons, they have not been able to become market favorites. Mainstream, in order to meet the market demand, our company introduces new main and auxiliary materials according to the existing equipment, optimizes the design formula, and produces 12.5KN / M 2 ,16KN / M 2 High rigidity series of pipes can meet t...

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): C08L23/06C08L23/12C08L33/00C08K3/34F16S3/00
Inventor 雍跃吴文利刘雪慧余明锋
Owner SINOMACH GENERAL MACHINERY SCIENCE & TECHNOLOGY CO LTD
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