High-peeling strength polyethylene conveying belt and manufacturing method thereof

A manufacturing method, polyethylene technology, applied in the direction of conveyors, belts, transportation and packaging, etc., can solve the problem of not breaking through the category of physical combination, and achieve the effect of improving compatibility, large peel strength, and increased peel strength

Active Publication Date: 2010-09-29
SHANGHAI YONGLI BELTING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this method still does not break through the category of physical combination

Method used

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  • High-peeling strength polyethylene conveying belt and manufacturing method thereof
  • High-peeling strength polyethylene conveying belt and manufacturing method thereof
  • High-peeling strength polyethylene conveying belt and manufacturing method thereof

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Embodiment Construction

[0024] see figure 1 It is the layered structure schematic diagram of polyethylene conveyor belt of the present invention and figure 2 Shown in the process flow diagram of the present invention, for the manufacture method of the high peel strength polyethylene conveyer belt described in claim 1, comprises the following steps:

[0025] Step 1: Graft ethylene-grafted methyl methacrylate copolymer (modified polyethylene, melt index is 5g / 10min~10g / 10min, methyl methacrylate content is 10%-30%) at -35~ Crush at -40°C to make a powder, with a particle size range of 10 μm to 20 μm; crush the polyethylene, cryogenically crush the polyethylene into a powder in a liquid nitrogen environment, and make it into a powder, with a particle size range of 10 μm ~20μm;

[0026] Step 2: Polyester fabric 1 is heat-treated at 170°C to 190°C;

[0027] Step 3: Apply ethylene-grafted methyl methacrylate copolymer powder on the surface of polyester fabric 1, and heat-setting at 170-190°C to make et...

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Abstract

The invention relates to a high-peeling strength polyethylene conveying belt and a manufacturing method thereof. A jointing layer is arranged between polyester fabric and a polyethylene layer, and the jointing layer is an ethylene grafted methyl methacrylate copolymer. The manufacturing method comprises the following steps of: crushing the ethylene grafted methyl methacrylate copolymer into powder at low temperature; carrying out heat treatment on the polyester fabric; coating the ethylene grafted methyl methacrylate copolymer powder on the upper surface of the polyester fabric, and carrying out heat setting at 170-190 DEG C to enable the modified polyethylene to be combined with the polyester fabric to form the jointing layer; coating polyethylene powder on the upper surface of the jointing layer to form the polyethylene layer; and compacting the fabric through a hot compression roller, and then cooling the fabric to room temperature to obtain the polyethylene conveying belt. The invention has the advantages that the ethylene grafted methyl methacrylate copolymer is used as the jointing layer to enable the polyethylene to have polar groups, and the peeling strength is greatly improved by combining chemical bonds and the polyester fabric.

Description

technical field [0001] The invention relates to a polyethylene light-duty conveyor belt, in particular to a polyethylene conveyor belt with high peeling strength and a manufacturing method thereof. Background technique [0002] Polyethylene, full name Polyethylene (PE), is a widely used engineering plastic, which can be divided into high-density polyethylene, medium-density polyethylene and low-density polyethylene according to different densities. Low-density polyethylene is mostly made by high-pressure polymerization, which is soft and suitable for making films and other products; high-density polyethylene is mostly made by low-pressure polymerization, which has the characteristics of rigidity, hardness and mechanical strength, and can be used as containers, pipes, and It can be used as a high-frequency electrical insulating material for radar and television. Polyethylene has a smooth texture like wax. When it is not dyed, low-density polyethylene is transparent, while hi...

Claims

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Application Information

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IPC IPC(8): B65G15/32B29D29/06D06M15/263D06M15/227D06M101/32
Inventor 蔡澜范冰史佩浩
Owner SHANGHAI YONGLI BELTING
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