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Heat-resisting conveying belt special for large junk and preparation process of heat-resisting conveying belt

A technology for heat-resistant conveyor belts and shackles, applied in the field of conveyor belts, can solve the problems of low bonding strength between EPDM rubber and the belt core, small fiber size, and high dispersion, and achieve light weight, small fiber size, and high dispersion high degree of effect

Inactive Publication Date: 2019-05-28
青岛环球输送带有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the objectives of the present invention is to provide a special heat-resistant conveyor belt for sand boats. By using EPDM rubber and chlorinated polyethylene rubber with excellent heat resistance as the base material and cooperating with other additives, it can significantly improve the The heat resistance of the conveyor belt; the ceramic fiber has the advantages of light weight, high temperature resistance and good thermal stability. After modification, the fiber size is small and the dispersion in the rubber is high. The modified ceramic fiber High bonding strength, not only can improve its bonding force with rubber, but also improve the defect of low bonding strength between EPDM rubber and belt core, improve the heat resistance of the conveyor belt while improving the EPDM Interlayer bonding strength between rubber and belt core

Method used

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  • Heat-resisting conveying belt special for large junk and preparation process of heat-resisting conveying belt
  • Heat-resisting conveying belt special for large junk and preparation process of heat-resisting conveying belt
  • Heat-resisting conveying belt special for large junk and preparation process of heat-resisting conveying belt

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0051] Preparation example 1: ① Dispersion treatment: Cut the ceramic fiber into short fibers with a length of 2mm, then immerse it in 50wt% ethanol solution, and ultrasonically treat it for 5 minutes;

[0052] ②Preparation of impregnation solution: Take 6kg of polyethylene glycol, 3kg of montmorillonite, 1kg of rosin glyceride, 1kg of silane coupling agent, 0.3kg of diphenylmethane bismaleimide and 0.2kg of diethylene glycol dibenzoate kg, stirred at a speed of 1000r / min for 10min to obtain the impregnating solution;

[0053] ③Take 10kg of the ceramic fiber treated in step ①, immerse it in the immersion solution at 120°C and keep it warm for 1h; then place it at 150°C and bake it for 5min to obtain the modified ceramic fiber.

preparation example 2

[0054] Preparation example 2: ① Dispersion treatment: Cut the ceramic fiber into short fibers with a length of 3mm, then immerse it in 50wt% ethanol solution, and ultrasonically treat it for 7.5min;

[0055] ②Preparation of impregnating solution: take polyethylene glycol 8kg, montmorillonite 4kg, rosin glyceride 1.5kg, silane coupling agent 1.5kg, diphenylmethane bismaleimide 0.4kg and diethylene glycol dibenzoic acid Ester 0.3kg, stir it for 12.5min with the speed of 1250r / min, obtain impregnation solution;

[0056] ③Take 12.5kg of the ceramic fiber treated in step ①, immerse it in the immersion solution at 125°C, and keep it warm for 1.5h; then place it at 155°C, and bake it for 7.5min to obtain the modified ceramic fiber.

preparation example 3

[0057] Preparation example 3: ① Dispersion treatment: Cut the ceramic fiber into short fibers with a length of 4mm, then immerse it in 50wt% ethanol solution, and ultrasonically treat it for 10min;

[0058] ②Preparation of impregnating solution: take polyethylene glycol 10kg, montmorillonite 5kg, rosin glyceride 2kg, silane coupling agent 2kg, diphenylmethane bismaleimide 0.5kg and diethylene glycol dibenzoate 0.4 kg, stirring it for 10-15min at a speed of 1500r / min to obtain an impregnation solution;

[0059] ③Take 15kg of the ceramic fiber treated in step ①, immerse it in the immersion solution at 130°C and keep it warm for 2h; then place it at a temperature of 160°C and bake it for 10min to obtain the modified ceramic fiber.

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Abstract

The invention discloses a heat-resisting conveying belt special for a large junk and a preparation process of the heat-resisting conveying belt. According to the technical scheme, the heat-resisting conveying belt special for the large junk comprises a belt core, belt core rubber and coverage rubber. The coverage rubber comprises upper coverage rubber and lower coverage rubber. The coverage rubberis formed by polymerizing raw materials which include EPDM, chlorinated polyethylene rubber, carbon black, modified ceramic fibers, a vulcanizing agent, an accelerant, an activation agent, a plasticizer and an anti-aging agent. Ceramic fibers are immersed into impregnation liquid formed by polyethylene glycol, imvite, glycerol ester of rosin, a silane coupling agent, BMDPM and diethylene glycol dibenzoate, and the modified ceramic fibers are obtained through modification treatment. The bonding strength of the modified ceramic fibers is high, the bonding force of the modified ceramic fibers and rubber can be improved, the defect that the bonding strength of EPDM and the belt core is low can be overcome, heat resistance of the conveying belt is improved, and meanwhile the interlayer bondingstrength of EPDM and the belt core is improved.

Description

technical field [0001] The invention relates to the technical field of conveyor belts, more specifically, it relates to a special heat-resistant conveyor belt for sand ships and a preparation process thereof. Background technique [0002] Conveyor belt, also known as conveyor belt, is a composite product used to carry and transport materials. It is widely used in cement, coking, metallurgy, chemical industry, steel and other industries where the conveying distance is short and the conveying volume is small; the composition of the conveyor belt It generally includes belt core, belt core rubber and covering rubber; the belt core is the skeleton of the conveyor belt, which is used to bear the full load during work, and generally adopts steel wire rope or fiber fabric; the belt core rubber is located between the belt core and the covering rubber, and is used for Improve the bonding strength between the belt core and the covering rubber; the covering rubber is the protective laye...

Claims

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Application Information

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IPC IPC(8): B65G15/32C08L23/16C08L23/28C08L91/06C08L95/00C08L9/00C08L9/06C08K13/06C08K13/02C08K9/04C08K9/08C08K9/02C08K9/06C08K9/00C08K7/04C08K3/04C08K3/22C08K5/09C08K5/3437C08K5/378C08K5/13C08K3/36B29C35/02B32B25/10B32B25/00B32B9/02B32B9/04B32B27/02B32B27/36B32B25/04
Inventor 李坤辉李连刚
Owner 青岛环球输送带有限公司
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