A kind of ultra-high molecular weight polyethylene elevator sliding guide shoe lining and preparation method thereof

Abstract

The invention relates to an ultra-high molecular weight polyethylene elevator sliding guide shoe liner and a preparation method thereof. The shoe liner includes a product B and two pieces of product A arranged opposite to the product B along the length direction of the product B, and the product B and the two pieces Product A is combined into a configuration that matches the shape of the elevator sliding guide shoe. Product A and product B are made of ultra-high molecular weight polyethylene resin or a composite material based on ultra-high molecular weight polyethylene resin through injection molding. Composition, wherein the mass fraction of ultra-high molecular weight polyethylene resin in the composite material is 45-75%, and the rest is low molecular weight polyolefin resin. Compared with the prior art, the present invention uses the ultra-high molecular weight polyethylene composite material for the production of elevator sliding guide shoe lining for the first time, and utilizes the high-strength, wear-resistant excellent mechanical properties of ultra-high molecular weight polyethylene, as well as chemical corrosion resistance and aging resistance The characteristics of excellent performance have realized the application of ultra-high molecular weight polyethylene composite materials in special-shaped products.

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...

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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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