Radial tyre bladder and preparation method thereof

A technology of radial tires and capsules, which is applied in the field of polymer compound composition and its preparation, can solve problems such as low efficiency and long mixing time, and achieve the effects of improving uniform distribution, saving mixing time, and improving flow performance

Active Publication Date: 2012-10-17
浙江华和塑胶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has long mixing time and low efficiency

Method used

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  • Radial tyre bladder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 90 parts of butyl rubber, 5 parts of neoprene, 4 parts of castor oil, 55 parts of carbon black, 1.2 parts of stearic acid, 0.5 parts of paraffin, 7 parts of resin, and 4 parts of zinc oxide.

[0030] The paraffin is microcrystalline wax. In addition to normal alkanes and isoparaffins, microcrystalline wax also contains many long-chain branched and cyclic saturated hydrocarbons, with high melting point and good plasticity, which can better improve the fluidity of the colloid.

[0031] The butyl rubber is 268 type butyl rubber.

[0032] The carbon black is made of high structure carbon black. The carbon black primary aggregates of high-structure carbon black are composed of a large number of primary particles with considerable branching and chaining. Higher surface area enhances the performance of carbon black. The resin is octyl phenolic vulcanized resin or p-tert-butylphenolic resin. The particle size of the carbon black is 30-50nm. The reinforcing effect of carbo...

Embodiment 2

[0042] The composition and weight ratio of the raw materials are: 100 parts of butyl rubber, 5 parts of neoprene, 4.5 parts of castor oil, 52 parts of carbon black, 1 part of stearic acid, 0.6 part of paraffin, 7.2 parts of resin, 5 parts of zinc oxide share.

[0043] The paraffin is microcrystalline wax. The butyl rubber is268 type butyl rubber. The carbon black is made of high structure carbon black. The resin is an octyl phenolic vulcanized resin.

[0044] For the preparation method of the radial tire bladder, the vulcanization temperature is 160°, and the rest are the same as in Example 1, and will not be repeated here.

Embodiment 3

[0046] The composition and weight ratio of the raw materials are: 100 parts of butyl rubber, 5 parts of neoprene, 5 parts of castor oil, 50 parts of carbon black, 1 part of stearic acid, 0.8 part of paraffin, 9 parts of resin, 5 parts of zinc oxide share.

[0047] The paraffin is microcrystalline wax. The butyl rubber is 268 type butyl rubber. The carbon black is made of high structure carbon black. The resin is p-tert-butylphenol-formaldehyde resin.

[0048] For the preparation method of the radial tire bladder, the vulcanization temperature is 167°, and the rest are the same as in Example 1, and will not be repeated here.

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Abstract

The invention discloses a radial tyre bladder and a preparation method of the radial tyre bladder, belonging to the technical fields of compositions of macromolecular compound and preparation methods. The radial tyre bladder comprises the following raw materials by weight: 90-110 parts of butyl rubber, 5-6 parts of chloroprene rubber, 4-6 parts of castor oil, 48-55 parts of carbon black, 0.7-1.5 parts of stearic acid, 0.4-0.8 parts of paraffin, 7-10 parts of resin, and 4-6 parts of zinc oxide. The method comprises the following steps: (a) preparing ingredients, mixing and filtering: mixing the semi-finished rubber and zinc oxide at 50-60 DEG C for 40-50 seconds, adding the resin and mixing for 60-70 seconds, adding other additives, raising the temperature to 150-160 DEG C, mixing for 7-8 minutes to obtain a mixture, and standing for 12-24 hours; (b) extruding to obtain slices and forming rubber strips; (c) vulcanizing and polishing, wherein the vulcanization temperature is 160-170 DEG C and a pressure-maintaining and temperature-preservation process is performed for 3-5 minutes. According to the technical scheme of the invention, the production efficiency is improved, the heat resistance of the rubber is increased, and the service life of the tyre bladder is prolonged.

Description

technical field [0001] The invention belongs to the technical field of polymer compound composition and its preparation method, and in particular relates to a radial tire capsule and its preparation method. Background technique [0002] A tire bladder is an essential consumable part used in the manufacture of tires. During the vulcanization process of the tire, the inside of the tire bladder is filled with compressed gas or superheated water to stretch and stretch the tire blank to form an internal pressure vulcanized tire. The compressed gas is usually nitrogen, and the superheated water is hot water that has been deaerated. This process setting avoids the oxidation of the tire bladder as much as possible, thereby increasing the service life of the tire bladder. [0003] The existing tire bladder vulcanization method mainly uses a vulcanizer to inject high-temperature viscous and fluid rubber material into the bladder mold under high pressure, and uses the fluidity of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/22C08L11/00C08L61/06C08L91/06C08K13/02C08K3/04C08K3/22C08K5/00C08K5/09B29B7/72B29C35/02B60C1/00
Inventor 许肖峰
Owner 浙江华和塑胶科技有限公司
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