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

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...

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

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