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Application of glass fiber reinforced polypropylene composite material in carrier roller

A composite material, polypropylene technology, applied in the direction of rollers, transportation and packaging, conveyor objects, etc., can solve the problems affecting the stiffness and resistance of the idler, bending deformation, insufficient cylinder stiffness, etc.

Active Publication Date: 2020-08-04
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem that the non-metallic materials used to prepare the rollers in the prior art have insufficient rigidity of the cylinder, and are prone to bending deformation, which affects the stiffness and deformation resistance of the rollers, and provide a glass fiber-reinforced The application of polypropylene composite material in idlers, the idler made of this glass fiber reinforced polypropylene composite material has good rigidity and strong deformation resistance

Method used

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  • Application of glass fiber reinforced polypropylene composite material in carrier roller
  • Application of glass fiber reinforced polypropylene composite material in carrier roller
  • Application of glass fiber reinforced polypropylene composite material in carrier roller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The preparation method of the roller 30, the carrier 40 and the end cover 50 of the idler is as follows:

[0060] (1) 45 parts by weight of polypropylene, 3 parts by weight of poly(propylene-grafting-glycidyl methacrylate) (grafting rate of 1.5% by weight), 2 parts by weight of polyethylene wax, 0.4 parts by weight of antioxidant , 9 parts by weight of decabromodiphenylethane, 3 parts by weight of antimony trioxide, and 8 parts by weight of carbon black are added to a high-speed mixer in turn and fully mixed to obtain a polypropylene mixed resin. The mixing temperature is 60 ° C. The time is 4 minutes;

[0061] (2) Add the polypropylene mixed resin into the hopper of the extrusion equipment, and melt and process it into a resin melt through the extruder, the extrusion temperature is 200°C, and the extruder speed is 100rpm; then the resin melt is extruded into In the impregnation die connected to the extruder head, 40 parts by weight of glass fibers are introduced into ...

Embodiment 2

[0066] The preparation method of the roller 30, the carrier 40 and the end cover 50 of the idler is as follows:

[0067] (1) 40 parts by weight of polypropylene, 5 parts by weight of poly(propylene-grafting-glycidyl methacrylate) (grafting rate of 0.8% by weight), 2.5 parts by weight of polyethylene wax, 0.3 parts by weight of antioxidant , 7.5 parts by weight of decabromodiphenylethane, 2.5 parts by weight of antimony trioxide, and 4 parts by weight of carbon black are added to a high-speed mixer in turn and fully mixed to obtain a polypropylene mixed resin. The mixing temperature is 60 ° C. The time is 4 minutes;

[0068] (2) Add the polypropylene mixed resin into the hopper of the extrusion equipment, and melt and process it into a resin melt through the extruder, the extrusion temperature is 230°C, and the extruder speed is 200rpm; then the resin melt is extruded into In the impregnation die connected to the extruder head, 45 parts by weight of glass fibers are introduced...

Embodiment 3

[0072] The preparation method of the roller 30, the carrier 40 and the end cover 50 of the idler is as follows:

[0073] (1) 50 parts by weight of polypropylene, 2 parts by weight of poly(propylene-grafting-glycidyl methacrylate) (grafting rate of 1.0% by weight), 2 parts by weight of polyethylene wax, 0.6 parts by weight of antioxidant , 11.25 parts by weight of decabromodiphenylethane, 3.75 parts by weight of antimony trioxide, and 10 parts by weight of carbon black are successively added to a high-speed mixer and fully mixed to obtain a polypropylene mixed resin. The mixing temperature is 60 ° C. The time is 4 minutes;

[0074] (2) Add the polypropylene mixed resin into the hopper of the extrusion equipment, and melt and process it into a resin melt through the extruder, the extrusion temperature is 230°C, and the extruder speed is 180rpm; then the resin melt is extruded into In the impregnation die connected to the extruder head, 35 parts by weight of glass fibers are int...

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Abstract

The invention relates to the field of carrier rollers, in particular to application of a glass fiber reinforced polypropylene composite material in a carrier roller. The carrier roller comprises a roller shaft, a bearing and a roller, the roller comprises a roller body and a reinforcing structure arranged on the inner surface of the roller body, and the roller is prepared from the glass fiber reinforced polypropylene composite material through injection molding. The composite material comprises polypropylene, glass fibers, a compatibilizer, a lubricant, an antioxidant, an optional flame retardant and an optional antistatic agent. A roller made of the glass fiber reinforced polypropylene composite material has good rigidity, high deformation resistance, small radial circular run-out and axial play and small rotation resistance.

Description

technical field [0001] The invention relates to the field of idler rollers, in particular to the application of a glass fiber reinforced polypropylene composite material in idler rollers. Background technique [0002] Belt conveyors are commonly used tools for conveying materials, and are widely used in fields such as coal mines, ports, power plants, cement plants, and grain processing plants. The belt conveyor mainly includes a conveyor belt and an idler roller located under the conveyor belt. The idler roller is used to support and share the load of the belt, and to ensure the long-term effective operation of the belt. [0003] For the heavy-duty field, metal idlers are mostly used, but metal idlers have heavy weight, poor wear resistance and corrosion resistance, and the manufacturing process is relatively complicated. Although the ceramic roller solves the problems of corrosion resistance and wear resistance, its shortcomings of high brittleness and fragility are also v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L51/06C08L23/06C08L83/04C08K13/04C08K7/14C08K3/22C08K3/04C08K5/03C08J5/04B65G39/02
CPCC08J5/043B65G39/02C08J2323/12C08J2451/06C08J2423/06C08J2483/04C08K13/04C08K7/14C08K3/2279C08K3/04C08K5/03
Inventor 刘国刚马伊张志成梁文斌于芳王曙光张寅灵王珂
Owner CHNA ENERGY INVESTMENT CORP LTD