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

High tenacious polypropylene material for manufacturing central conditioner air-discharge hose and its preparation method

A polypropylene material and central air-conditioning technology, applied in the direction of hoses, pipes, mechanical equipment, etc., can solve the problems of weak adhesion between PP materials and steel wires, and cannot meet the requirements of high-toughness PP, and achieve simple and sticky Excellent composite performance and the effect of improving tensile strength

Inactive Publication Date: 2007-07-11
SHENZHEN KEJU NEW MATERIAL
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high-tough and environmentally friendly PP material produced by this method has fatal defects when it is used to produce the central air-conditioning exhaust hose: the PP material is not firmly bonded to the steel wire, and there are a large number of pores on the surface of the product, so it cannot meet the requirements. Requirements for the use of high toughness PP for central air-conditioning exhaust hose

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

[0044] Mix PP resin 100 with PP K8303 and K8003 at a ratio of 50:1, POE8999 10, LLDPE 7042 10, 1250 mesh talc powder 0.1, antioxidant 0.1, lubricant 0.1, and mix in a high-speed mixer for 3-5 Minutes, the speed of the high-speed mixer is 800 rpm; then the mixed raw materials are placed in a parallel twin-screw extruder for melt extrusion and granulation. -190°C, three zones 180-190°C, four zones 175-185°C, screw speed 350-400r / min, feeding frequency 20-25Hz, melt pressure 3.0-4.0MPa, vacuum degree -0.03~-0.06MPa.

Embodiment 2

[0046] Mix PP resin 100 with PP K8303 and K8003 at a ratio of 20:1, POE 899920, LLDPE 7042 20, 1250 mesh talc powder 0.5, antioxidant 0.3, lubricant 0.3, and mix in a high-speed mixer for 3-5 minutes , the speed of the high-speed mixer is 800 rpm; then the mixed raw materials are placed in a parallel twin-screw extruder for melt extrusion and granulation. 190°C, 180-190°C in the third zone, 175-185°C in the fourth zone, screw speed 350r / min, feeding frequency 20-25Hz, melt pressure 3.0-4.0MPa, vacuum degree -0.03~-0.06MPa.

Embodiment 3

[0048]Mix PP resin 100 with PP K8303 and K8003 at a ratio of 10:1, POE 899930, LLDPE 7042 30, 1250 mesh talc powder 1, antioxidant 0.5, lubricant 0.5, and mix in a high-speed mixer for 3-5 minutes , the speed of the high-speed mixer is 800 rpm; then the mixed material is placed in a parallel twin-screw extruder for melt extrusion and granulation. 190°C, 180-190°C in the third zone, 175-185°C in the fourth zone, screw speed 400r / min, feeding frequency 20-25Hz, melt pressure 3.0-4.0MPa, vacuum degree -0.03~-0.06MPa.

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
melt flow indexaaaaaaaaaa
melt flow indexaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-flexibility polypropylene material and making method, which comprises the following steps: allocating raw material with 100g PP resin, 10-30g POE elastic bulk, 10-30g flexibilizer, 0.1-1. 0g microfine talcum powder, 0.1-0.5g anti-oxidant and 0.1-0.5 lubricant; blending raw material in the high-speed mixer for 3-5min; placing mixed raw material in the double-screw squeezer; fusing; graining; obtaining the product.

Description

[technical field] [0001] The invention relates to a high-toughness polypropylene (PP) material used for manufacturing central air-conditioning exhaust hoses, and also relates to a preparation method of the material. [Background technique] [0002] Polypropylene (PP) is one of the five general-purpose plastics, with a density of 0.90g / cm 3 , is the second lightest polymer material in existing resins (only greater than polymethylpentene, density 0.85g / cm 3 ). Because of its good performance, small specific gravity, and easy molding and processing, it is widely used in the automobile industry, household appliances, electronic instrument industry, and textile industry. [0003] However, due to the low elongation at break of PP resin, mostly less than 400%, and poor adhesion to metal, the PP material for the central air-conditioning exhaust hose needs to be formed into a film by extrusion, and then drawn by stretching. It is coated on the steel wire, which requires high adhesi...

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): C08L23/12C08K5/524F16L11/04B29C47/92B29C48/40B29C48/92B29C48/95
CPCB29C48/04B29C48/40B29C48/95
Inventor 徐东贺永杨书涛
Owner SHENZHEN KEJU NEW MATERIAL
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