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Conveyor belt cover rubber resistant to heat, acid and base and preparation method of conveyor belt cover rubber

A technology of acid and alkali resistance and conveyor belt is applied in the field of heat-resistant acid and alkali-resistant conveyor belt covering rubber and its preparation, which can solve the problems of reducing the service life of the conveyor belt and increasing the transportation cost, so as to improve the acid and alkali resistance and improve the resistance of the conveyor belt. Heat resistance, the effect of improving processability

Inactive Publication Date: 2018-06-29
WUXI BOTON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional styrene-butadiene rubber system cannot meet the requirements of heat resistance and acid and alkali resistance at the same time, which greatly reduces the service life of the conveyor belt and increases the transportation cost of the enterprise

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Formula ratio by weight: 70 parts of hydrogenated nitrile rubber, 30 parts of styrene-butadiene rubber, 4 parts of zinc oxide, 3 parts of magnesium oxide, 1 part of stearic acid, 20 parts of carbon black N234, 20 parts of white carbon black, 15 parts Barium sulfate, 9 parts of DOP, 2 parts of antioxidant MB, 1 part of antioxidant RD, 5 parts of vulcanizing agent DCP, 3.5 parts of accelerator TAIC.

[0019] (1) Raw rubber mastication: Add 70 parts of hydrogenated nitrile rubber and 30 parts of styrene-butadiene rubber into the two-roller open mill, adjust the roller distance to less than 1mm, control the roller temperature below 40°C, and masticate for 10 to 15 minutes.

[0020] (2) One-stage kneading: adjust the roller distance to 3-4mm, put in plasticizing rubber and knead for 3-4min; relax the roller distance to 8-10mm, add 4 parts of zinc oxide, 3 parts of magnesium oxide, 1 part of hard Fatty acid, 20 parts of carbon black N234, 20 parts of white carbon black, 15 pa...

Embodiment 2

[0024] Formula ratio by weight: 80 parts of hydrogenated nitrile rubber, 22 parts of styrene-butadiene rubber, 3.5 parts of zinc oxide, 4.3 parts of magnesium oxide, 1.5 parts of stearic acid, 28 parts of magnesium methacrylate, 13 parts of clay, 8 parts of sulfuric acid Barium, 9 parts of mica powder, 3 parts of DOP, 7 parts of DOS, 1.5 parts of antioxidant MB, 2.7 parts of antioxidant ODA, 4.5 parts of vulcanizing agent DCP and 3.7 parts of accelerator TAIC.

[0025] (1) Raw rubber mastication: add 80 parts of hydrogenated nitrile rubber and 22 parts of styrene-butadiene rubber into the double-roller mill, adjust the roller distance to less than 1mm, control the roller temperature below 40°C, and masticate for 15 minutes.

[0026] (2) One-stage kneading: adjust the roller distance to 4mm, put in plasticizing rubber and knead for 4min; relax the roller distance to 10mm, add 3.5 parts of zinc oxide, 4.3 parts of magnesium oxide, 1.5 parts of stearic acid, 28 parts of formazan ...

Embodiment 3

[0030] Formula ratio by weight: 65 parts of hydrogenated nitrile rubber, 28 parts of styrene-butadiene rubber, 2 parts of zinc oxide, 4 parts of magnesium oxide, 1.3 parts of stearic acid, 30 parts of carbon black N330, 10 parts of zinc methacrylate, 18 parts Parts of mica powder, 11 parts of DOS, 1.8 parts of antioxidant MB, 1.8 parts of antioxidant RD, 6 parts of vulcanizing agent DCP, and 2 parts of auxiliary accelerator TAIC.

[0031] (1) Raw rubber mastication: Add 65 parts of hydrogenated nitrile rubber and 28 parts of styrene-butadiene rubber into the two-roller open mill, adjust the roller distance to less than 1mm, control the roller temperature below 40°C, and masticate for 13 minutes.

[0032] (2) One-stage kneading: adjust the roller distance to 3mm, put in plasticizing rubber and knead for 4min; relax the roller distance to 9mm, add 2 parts of zinc oxide, 4 parts of magnesium oxide, 1.3 parts of stearic acid, and 30 parts of charcoal in sequence Black N330, 10 par...

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Abstract

The invention relates to conveyor belt cover rubber resistant to heat, acid and base and a preparation method of the conveyor belt cover rubber and belongs to the technical field of conveyor belt cover rubber. Hydrogenated acrylonitrile butadiene rubber and butadiene styrene rubber are added to a double-roll open mill for plastification, then zinc oxide, magnesium oxide, stearic acid, an antiager,a reinforcing agent, filler and a softening agent are added sequentially, a sheet is discharged after the materials are uniformly mixed, placed on a cooling disc for 12 h, and a section of rubber compound is obtained; vulcanizing agent DCP and kicker TAIC are added to the section of rubber compound for mixing, and a sheet is discharged after sufficient mixing and placed on the cooling disc for cooling; the rubber sheet is vulcanized after being cooled sufficiently, and the conveyor belt cover rubber resistant to heat, acid and base is obtained. By adding the hydrogenated acrylonitrile butadiene rubber to the rubber material, the resistance of the rubber to heat, acid and base can be improved effectively, and the conveyor belt cover rubber resistant to heat, acid and base is obtained.

Description

technical field [0001] The invention relates to a heat-resistant, acid- and alkali-resistant conveyor belt covering glue and a preparation method thereof. The covering glue can be applied to industries such as chemical plants and fertilizer plants for manufacturing and transporting acid and alkali materials, and belongs to the technical field of conveyor belt covering glue. Background technique [0002] With the rapid development of modern technology, the requirements for conveyor belts are also becoming more diverse. Nowadays, some chemical plants and chemical fertilizer plants produce or transport acid-base materials at a temperature above 150°C, and the instantaneous temperature will be even higher. This requires that the conveyor belt not only has good acid and alkali resistance, but also has heat resistance. The traditional styrene-butadiene rubber system cannot meet the requirements of heat resistance and acid and alkali resistance at the same time, which greatly redu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L15/00C08L9/06C08K13/02C08K3/22C08K5/09C08K5/14C08K3/30C08K3/34
Inventor 徐振龙吴玉山吴建国孙业斌许文波范旭梦陈金坤蒯心烨
Owner WUXI BOTON TECH CO LTD
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