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Preparation method of anti-fatigue additive for rubber tire carcass

A rubber tire and anti-fatigue technology, which is applied in the field of preparation of rubber tire carcass anti-fatigue additives, can solve the problems of poor heat aging resistance, poor tensile properties of anti-fatigue additives, and low tensile properties, reaching Effects of improving dynamic fatigue resistance, prolonging service life, and increasing mileage

Inactive Publication Date: 2016-12-14
宁波金特信钢铁科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention: Aiming at the defects such as low tensile performance and poor heat aging resistance of traditional rubber tire carcass anti-fatigue additives, a preparation method of rubber tire carcass anti-fatigue additives is provided
The invention utilizes the better high temperature resistance performance, good toughness and strength of silicon carbide whiskers to solve the defects of poor tensile performance and poor heat aging resistance of traditional anti-fatigue additives, and has wide application value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] First weigh 10g of molybdenum disulfide, 10g of precipitated silica, 5g of silicon carbide whiskers, and 6g of glass fiber and add them to a pulverizer for pulverization, pass through a 80-mesh sieve to obtain a mixed powder, add the mixed powder to a beaker, and pour the mixed powder into the beaker Add 200mL of hydrogen peroxide with a mass concentration of 28% to the mixture, stir for 12 hours, filter to obtain a filter residue, add the filter residue to the Erlenmeyer flask, add 200mL of biogas liquid, and place it in an ultrasonic oscillator with a power of 20W. Ultrasonic oscillation for 3 days, then heated up to 90°C, oscillated for 10 minutes, stood still for 10 minutes, discarded the impurities in the upper layer, obtained the lower layer of precipitation, and set aside; weighed 8g of 1-octene and added it to the autoclave, and then added 100mL of absolute ethanol, 2g of methylalumoxane, 3g of ethylenedichlorozirconocene, control the pressure at 2MPa, temperatur...

example 2

[0019]First weigh 15g of molybdenum disulfide, 15g of precipitated silica, 7g of silicon carbide whiskers, and 7g of glass fiber and add them to a pulverizer for pulverization, pass through a 90-mesh sieve to obtain a mixed powder, add the mixed powder to a beaker, and pour the mixed powder into the beaker Add 250mL of hydrogen peroxide with a mass concentration of 29%, stir and react for 13h, filter to obtain the filter residue, add the filter residue to the Erlenmeyer flask, then add 250mL of biogas liquid, and place it in an ultrasonic oscillator with a power of 25W to vibrate at 40°C Ultrasonic oscillation for 3.5 days, then raised the temperature to 95°C, oscillated for 15 minutes, stood still for 15 minutes, discarded the impurities in the upper layer, obtained the lower layer of precipitation, and set aside; weighed 9g of 1-octene and added it to the autoclave, and then added 150mL of absolute ethanol, 3g of methylalumoxane, 4g of ethylene dichlorozirconocene, control th...

example 3

[0022] First weigh 20g of molybdenum disulfide, 20g of precipitated silica, 8g of silicon carbide whiskers, and 8g of glass fiber and add them to a pulverizer for pulverization, pass through a 100-mesh sieve to obtain a mixed powder, add the mixed powder to a beaker, and pour the mixed powder into the beaker Add 300mL of hydrogen peroxide with a mass concentration of 28-30% in the mixture, stir for 14 hours, filter to obtain the filter residue, add the filter residue to the Erlenmeyer flask, then add 300mL of biogas liquid, and place it in an ultrasonic oscillator to oscillate with a power of 30W. Ultrasonic oscillation at 45°C for 4 days, then raise the temperature to 100°C, shake for 20 minutes, let stand for 20 minutes, discard the impurities in the upper layer, and obtain the precipitate in the lower layer for later use; weigh 10g of 1-octene and add it to the autoclave, and then add 200mL of anhydrous Ethanol, 4g of methylaluminoxane, 5g of ethylene dichlorozirconocene, th...

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Abstract

The invention discloses a preparation method of an anti-fatigue additive for a rubber tire carcass, and belongs to the technical field of rubber production additives. The preparation method provided by the invention comprises the following steps: crushing molybdenum disulfide, silicon carbide whiskers and the like, and then oxidizing and filtering; adding filter residues to biogas liquid for ultrasonic oscillation; collecting lower precipitates; taking 1-octene to react with methyl aluminoxane, ethylidene zirconocene chloride and the like at high pressure to obtain an octene-ethylene copolymer; then adding vinyl acetate and ammonium persulfate for stirring and reaction; adding deionized water to a reactant; reducing pressure and distilling an organic phase to obtain an octene-ethylene-vinyl acetate block copolymer; and adding the octene-ethylene-vinyl acetate block copolymer to paraffin for being mixed together with the lower precipitates, cooling and packaging to obtain the anti-fatigue additive for the rubber tire carcass. The preparation method provided by the invention uses the good high temperature resistance, toughness and strength of the silicon carbide whiskers to solve the problems that the traditional anti-fatigue additive is poor in tensile property and thermal aging resistance, and has a wide application value.

Description

technical field [0001] The invention discloses a preparation method of a rubber tire carcass anti-fatigue additive, and belongs to the technical field of rubber production additives. Background technique [0002] With the development of the transportation industry, the driving speed of automobiles continues to increase, the deformation frequency of tires increases during actual driving, and the temperature of the carcass rises rapidly, resulting in a decrease in the adhesion between rubber and cords, and increased tire shoulder voids. Only when the rubber and the cord are firmly integrated as a whole can the composite material transmit loads normally and distribute stress evenly during deformation, thereby reducing the tire shoulder space. The anti-fatigue agent is a complex composed of methyl citroimide and activated phenolic resin) adhesive system. It is mainly used in nylon, rayon, polyester and other cord adhesives, which can improve the bond between the rubber material ...

Claims

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Application Information

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IPC IPC(8): C08L53/00C08L91/06C08K13/06C08K5/053C08K3/30C08K3/36C08K7/10C08K7/14C08F293/00C08L9/06
CPCC08L53/00C08F293/00C08L9/06C08L2201/08C08L2205/03C08L91/06C08K13/06C08K5/053C08K2003/3009C08K3/36C08K7/10C08K7/14
Inventor 金峰孟浩影陆娜
Owner 宁波金特信钢铁科技有限公司