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

Elevator sliding guide shoe liner made of ultra-high molecular weight polyethylene and preparation method for elevator sliding guide shoe liner

An ultra-high molecular weight, sliding guide shoe technology, which is applied in the field of material molding processing, can solve the problems of difficult extrusion and easy splitting, and achieve the effects of increasing shear resistance, overcoming shrinkage, and eliminating pores

Active Publication Date: 2015-12-23
SHANGHAI RES INST OF CHEM IND +1
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to overcome the above-mentioned defects in the prior art and provide a method of applying ultra-high molecular weight polyethylene to the lining of elevator sliding guide boots by using injection molding technology, which effectively solves the problems that are easy to occur in the existing injection molding process. Phase separation, difficult technical problems of extrusion, and the use of ultra-high molecular weight polyethylene high strength, excellent mechanical properties of wear resistance, and excellent chemical corrosion resistance, aging performance, to achieve ultra-high molecular weight polyethylene materials in special-shaped products Applications

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
  • Elevator sliding guide shoe liner made of ultra-high molecular weight polyethylene and preparation method for elevator sliding guide shoe liner
  • Elevator sliding guide shoe liner made of ultra-high molecular weight polyethylene and preparation method for elevator sliding guide shoe liner
  • Elevator sliding guide shoe liner made of ultra-high molecular weight polyethylene and preparation method for elevator sliding guide shoe liner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Such as Figure 1-5 As shown, an ultra-high molecular weight polyethylene elevator sliding guide shoe lining in this embodiment includes a product B2 and two products A1 that are oppositely arranged on the product B2 along the length direction of the product B2, and the product B2 and the two products The product A1 is combined into a configuration suitable for the shape of the elevator sliding guide shoe. The product A1 and product B2 are composite materials based on ultra-high molecular weight polyethylene resin and prepared by injection molding process.

[0060] Among them, the mass fraction of ultra-high molecular weight polyethylene resin in the composite material is 75%, and the rest is low molecular weight polyolefin resin. Wherein, the viscosity-average molecular weight of the ultra-high molecular weight polyethylene resin is 1.5 million, and the low molecular weight polyolefin resin is selected from commercially available TR550.

[0061] In this embodiment, th...

Embodiment 2

[0073] This implementation aims to produce a high wear-resistant and low friction coefficient ultra-high molecular weight polyethylene boot lining product. The material is ultra-high molecular weight polyethylene resin (75wt%), the molecular weight is 2.5 million, and 25% of the general flow modifier in the market is added. After blending and compounding, it is used as the production material of this embodiment.

[0074] The preparation method of the ultra-high molecular weight polyethylene elevator sliding guide shoe lining of the present embodiment specifically comprises the following steps:

[0075] (1) Using ultra-high molecular weight polyethylene resin or ultra-high molecular weight polyethylene resin as a matrix composite material as raw material, feeding through an injection molding screw machine, so that the raw material is injected into the molding mold of product A1 and product B2, and the template is closed. During the feeding process, control the back pressure to ...

Embodiment 3

[0084] In this example, product A1 and product B2 are composite materials based on ultra-high molecular weight polyethylene resin and prepared by injection molding process, wherein the mass fraction of ultra-high molecular weight polyethylene resin in the composite material is 45%, and the rest It is a low molecular weight polyolefin resin, wherein, the viscosity average molecular weight of the ultra-high molecular weight polyethylene resin is 1.8 million, the molecular weight of the low molecular weight polyolefin resin is 250,000, and the molecular weight distribution is >4.0.

[0085] In this embodiment, the coefficient of friction between the product A1 and the product B2 is 18 MPa, and the thickness of the product A1 and the product B2 is 9 mm.

[0086] The preparation method of the ultra-high molecular weight polyethylene elevator sliding guide shoe lining of the present embodiment specifically comprises the following steps:

[0087] (1) Using ultra-high molecular weight...

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
thicknessaaaaaaaaaa
densityaaaaaaaaaa
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention relates to an elevator sliding guide shoe liner made of ultra-high molecular weight polyethylene and a preparation method for the elevator sliding guide shoe liner. The shoe liner comprises a product B and two products A oppositely arranged on the product B in the length direction of the product B, and the product B and the two products A are combined to form a structure adaptive to an elevator sliding guide shoe in shape. The products A and the product B are prepared from ultra-high molecular weight polyethylene resin or composite materials with ultra-high molecular weight polyethylene resin as the base body through the injection molding process, the mass fraction of the ultra-high molecular weight polyethylene resin in the composite materials is 45%-75%, and the rest is low molecular weight polyolefine resin. Compared with the prior art, the elevator sliding guide shoe liner is made of the ultra-high molecular weight polyethylene composite materials for the first time, and the application of the ultra-high molecular weight polyethylene composite materials to special-shaped products is achieved through the characteristics of superior mechanical properties of high strength and wear resistance, superior chemical corrosion resistance and superior ageing resistance of the ultra-high molecular weight polyethylene.

Description

technical field [0001] The invention belongs to the technical field of material forming and processing, and relates to an elevator sliding guide shoe lining and a preparation method thereof, in particular to an elevator sliding guide shoe lining of ultra-high molecular weight polyethylene and a preparation method thereof. Background technique [0002] Ultra-high molecular weight polyethylene usually refers to a linear structure polyethylene with a viscosity-average molecular weight of 1.5 million and a weight-average molecular weight of more than 3 million (the molecular weight of ordinary polyethylene is only about 20,000-300,000), and the density is 0.920-0.964g / cm 3 , heat distortion temperature (0.46MPa) 85°C, melting point 130-136°C, its molecular structure is basically the same as ordinary polyethylene, but its physical and mechanical properties far exceed ordinary polyethylene, such as non-toxic, light weight, cheap, Low water absorption, good ultra-low temperature pe...

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): B66B7/04B29C45/77B29C45/78B29C45/27
Inventor 周海波李志张炜叶晓峰吴向阳赵文静夏晋程
Owner SHANGHAI RES INST OF CHEM IND
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