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Preparation method of tire vulcanization capsule

A tire vulcanization and capsule technology, which is applied in the field of tire vulcanization bladder preparation, can solve the problems of poor anti-penetration performance of heat medium, deformation flexibility and unsatisfactory recovery, etc., to improve the stability of heat-resistant oxygen aging and improve the anti-aging performance. The effect of increasing permeability and mutual solubility

Inactive Publication Date: 2019-09-10
刘光植
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main technical problem to be solved by the present invention is to provide a tire curing bladder preparation method in view of the defect that the current tire curing bladder is not ideal in deformation flexibility and recovery under high-heat vulcanization environment, and has poor anti-penetration performance to heat medium.

Method used

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  • Preparation method of tire vulcanization capsule

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0030] Preparation of rubber powder emulsified oil:

[0031] In terms of parts by weight, put 20 parts of paraffin oil in a stirring tank, heat up to 90°C, keep stirring at a speed of 200r / min for 20 minutes, then add 5 parts of butyl rubber powder to the stirring tank, and continue to stir and disperse for 40 minutes , and then pour it into the oil bath, add 15 parts of neoprene to the oil bath, heat up to 200°C, keep warm for 10 minutes, stir at a low speed of 500r / min for 30min, and then shear at a high speed of 4000r / min Cut and emulsify to obtain rubber powder emulsified oil.

[0032] Preparation of dienylated products:

[0033] Add 60g of rosin into a four-necked flask equipped with a condenser, a stirrer, and a dropping funnel. Under nitrogen protection, heat up to 150°C, start the agitator, and stir at a speed of 400r / min. After the rosin is completely melted, Add 35g of rosin, and add 30mL of maleic anhydride to the four-neck flask dropwise with a dropping funnel at...

example 2

[0043] Preparation of rubber powder emulsified oil:

[0044] In terms of parts by weight, put 25 parts of paraffin oil in a stirring tank, heat up to 95°C, keep stirring at a speed of 250r / min for 25 minutes, then add 7 parts of butyl rubber powder to the stirring tank, and continue to stir and disperse for 45 minutes , then pour it into the oil bath, add 17 parts of neoprene to the oil bath, heat up to 210°C, keep warm for 13 minutes, stir at a low speed of 550r / min for 33min, and then shear at a high speed of 4100r / min Cut and emulsify to obtain rubber powder emulsified oil.

[0045] Preparation of dienylated products:

[0046] Add 63g of rosin into a four-necked flask equipped with a condenser, a stirrer, and a dropping funnel. Under nitrogen protection, heat up to 155°C, start the agitator, and stir at a speed of 480r / min. After the rosin is completely melted, Then add 38g of rosin, add 33mL of maleic anhydride dropwise to the four-neck flask with a dropping funnel at a ...

example 3

[0056] Preparation of rubber powder emulsified oil:

[0057] In terms of parts by weight, put 30 parts of paraffin oil in a stirring tank, heat up to 100°C, keep stirring at a speed of 300r / min for 30 minutes, then add 10 parts of butyl rubber powder to the stirring tank, and continue stirring and dispersing for 50 minutes , then pour it into the oil bath, add 20 parts of neoprene to the oil bath, heat up to 220°C, keep warm for 15 minutes, stir at a low speed of 600r / min for 35min, and then shear at a high speed of 4200r / min Cut and emulsify to obtain rubber powder emulsified oil.

[0058] Preparation of dienylated products:

[0059] Add 65g of rosin into a four-necked flask equipped with a condenser, a stirrer, and a dropping funnel. Under nitrogen protection, heat up to 160°C, start the agitator, and stir at a speed of 550r / min. After the rosin is completely melted, Add 40g of rosin, and add 35mL of maleic anhydride to the four-necked flask dropwise with a dropping funnel...

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Abstract

The invention belongs to the technical field of tire vulcanization capsule preparation, and in particular relates to a preparation method of a tire vulcanization capsule. According to the method, butyl rubber powder is dispersed in paraffin oil, chloroprene rubber is added to obtain rubber powder emulsified oil, rosin is reacted with maleic anhydride to obtain modified rosin, aluminum hydroxide isplaced in a potassium hydroxide solution for heating and dissolving, white carbon black is blended to obtain a zeolite gel, chlorinated paraffin, ammonium persulfate, the modified rosin, stearic acidand the like are subjected to mixing to obtain the low-temperature resistant tire vulcanization capsule. The butyl rubber powder swells in the paraffin oil to cause intermolecular force of the paraffin oil to weaken, thermo-oxidative aging resistant stability of butyl rubber is improved, zeolite particles are favorable for increasing internal friction of a cured vulcanization capsule, elasticityof the vulcanization capsule under high temperature conditions is improved, the chlorinated paraffin is added to the molten paraffin oil, miscibility with the paraffin oil is favorable, viscoelasticity, deformation flexibility and recovery property of the capsule are greatly changed, and thus the capsule has broad application prospects.

Description

technical field [0001] The invention belongs to the technical field of tire curing bladder preparation, and in particular relates to a preparation method of a tire curing bladder. Background technique [0002] With the continuous development of the world's automobile industry and the rapid growth of global highways, there are more and more types of cars, faster and faster driving speeds, and higher and higher quality requirements for tires. Therefore, the quality requirements for tire molds are also getting higher and higher. Get better and better. [0003] Tire vulcanization is to put the formed outer tire blank into the vulcanization model, and vulcanize it under a certain temperature and pressure, so that the tire can achieve the best vulcanization degree and required physical properties. Tire vulcanization can significantly improve the performance of tires, especially the mechanical properties. [0004] Tire curing bladder is an important tool for tire vulcanization. I...

Claims

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Application Information

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IPC IPC(8): C08L91/06C08L23/22C08L11/00C08L93/04C08L91/00C08L33/24C08K5/09C08K3/22C08K3/36
CPCC08K2003/2227C08L91/06C08L2201/08C08L2205/025C08L2205/035C09F1/04C08L23/22C08L11/00C08L93/04C08L91/00C08L33/24C08K5/09C08K3/22C08K3/36
Inventor 刘光植
Owner 刘光植