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Airtight tyre material prepared by blending ecichloro-hydrin rubber with poly vinyl alcohol and preparation method of aright tyre material

An airtight material, polyvinyl chloride technology, which is applied in the field of tire airtight materials, can solve the problems of blending of epichloride rubber and polyvinyl chloride, etc., and achieve shortened vulcanization time, fast vulcanization speed, heat resistance and variable pressure resistance The effect of mechanical properties

Inactive Publication Date: 2015-01-07
谭贤志
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From this, it can be confirmed that epichloride rubber and polyvinyl chloride have good compatibility and can be blended, but there have been no reports on the blending of epichloride rubber and polyvinyl chloride.

Method used

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  • Airtight tyre material prepared by blending ecichloro-hydrin rubber with poly vinyl alcohol and preparation method of aright tyre material
  • Airtight tyre material prepared by blending ecichloro-hydrin rubber with poly vinyl alcohol and preparation method of aright tyre material
  • Airtight tyre material prepared by blending ecichloro-hydrin rubber with poly vinyl alcohol and preparation method of aright tyre material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for preparing a car tire airtight material prepared by blending epichlorohydrin rubber and polyvinyl chloride, the specific steps are as follows:

[0031] (1) Prepare the material raw materials of the following mass parts: 60 parts of homopolychloroether rubber, 40 parts of polyvinyl chloride, 0.8 part of calcium stearate stabilizer, 0.2 part of mercaptan antimony stabilizer, 0.8 part of thiocyanate Acid, 10 parts of N550 carbon black, 30 parts of calcium carbonate, 45 parts of dioctyl phthalate, 0.5 parts of antioxidant MB, 10 parts of magnesium oxide, 5 parts of processing aid ACR; wherein the processing aid ACR is acrylate and Copolymers of methacrylates;

[0032](2) Stir and heat 40 parts of polyvinyl chloride prepared in step (1) to 100±5°C with a high-speed mixing mixer, and then gradually add 45 parts of plasticizer DOP (dioctyl phthalate), When adding the plasticizer DOP, keep the temperature of the material at 100±5°C, put the polyvinyl chloride added...

Embodiment 2

[0035] A method for preparing a car tire airtight material prepared by blending epichlorohydrin rubber and polyvinyl chloride, the specific steps are as follows:

[0036] (1) Prepare the material raw materials of the following mass parts: 65 parts of homopolychloroether rubber, 35 parts of polyvinyl chloride, 0.7 part of calcium stearate stabilizer, 0.18 part of mercaptan antimony stabilizer, 1.0 part of 2.4.6- Trimercapto-1.3.5 triazine, 20 parts of N550 carbon black, 20 parts of calcium carbonate, 38 parts of dioctyl phthalate, 0.65 parts of antioxidant MB, 8 parts of magnesium oxide, 4 parts of processing aid ACR; Auxiliary ACR is a copolymer of acrylate and methacrylate;

[0037] (2) Stir and heat 35 parts of polyvinyl chloride prepared in step (1) to 100±5°C with a high-speed mixing mixer, and then gradually add 38 parts of plasticizer DOP (dioctyl phthalate), When adding the plasticizer DOP, keep the temperature of the material at 100±5°C, put the polyvinyl chloride add...

Embodiment 3

[0040] A method for preparing a car tire airtight material prepared by blending epichlorohydrin rubber and polyvinyl chloride, the specific steps are as follows:

[0041] (1) At first, the following material raw materials will be prepared in parts by mass: 70 parts of homopolychloroether rubber, 30 parts of polyvinyl chloride, 0.6 part of calcium stearate stabilizer, 0.15 part of mercaptan antimony stabilizer, 1.5 parts of tripolymer Thiocyanic acid, 30 parts of N550 carbon black, 10 parts of calcium carbonate, 25 parts of dioctyl phthalate, 0.8 parts of antioxidant MB, 5 parts of magnesium oxide, 3 parts of processing aid ACR; wherein the processing aid ACR is acrylic acid Copolymers of esters and methacrylates;

[0042] (2) Stir and heat 30 parts of polyvinyl chloride prepared in step (1) to 100±5°C with a high-speed mixing mixer, and then gradually add 25 parts of plasticizer DOP (dioctyl phthalate), When adding the plasticizer DOP, keep the temperature of the material at ...

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Abstract

The invention provides an airtight tyre material prepared by blending ecichloro-hydrin rubber with poly vinyl alcohol and a preparation method of the aright tyre material. The airtight material is prepared by the following steps of: stirring and heating 30-40 parts of poly vinyl alcohol to 100 DEG C + / - 5 DEG C by adopting a high-speed mixing and stirring machine, then adding 25-45 parts by weight of plasticizer DOP (dioctyl-phthalate), feeding the poly vinyl alcohol with the plasticizer DOP and 60-70 parts by weight of homopolymerized ecichloro-hydrin rubber into an internal mixer for blending at the temperature of 165 DEG C + / - 5 DEG C, then adding 0.6-0.8 part of calcium stearate, 0.15-0.2 part of antimony mercaptan 10-30 parts of N550 carbon black, 10-30 parts of calcium carbonate, 0.5-0.8 part of antiaging agent MB, 5-10 parts of light magnesium oxide and 3-5 parts of processing agent ACR, standing for one day after blending at the temperature of 165 DEG C + / - 5 DEG C, then adding a vulcanizer TCY at the temperature of 75-100 DEG C, blending, standing for one to two days, and finally vulcanizing. The preparation method provided by the invention can guarantee good air tightness of the airtight tyre material while cost is reduced.

Description

technical field [0001] The invention relates to a tire air-tight material, in particular to a gas-tight material for preparing bicycle inner tubes or automobile tire inner-tight layers produced by blending epichloride rubber and polyvinyl chloride, and a production method of the sealing material. Background technique [0002] Existing vehicles (including bicycles and all motor vehicles) inner tubes and some large motor vehicle tire inner liners are made of natural rubber and butyl rubber. Natural rubber inner tube is the first generation product, its price is relatively cheap, but its biggest defect is poor air tightness, especially when used as a motor vehicle, due to the high speed and heavy load of the motor vehicle, the natural rubber inner tube also shows intolerance The defect of heat aging and short service life. [0003] Because the air permeability of butyl rubber is only one tenth of that of natural rubber, and because there is no high unsaturation of double bonds...

Claims

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Application Information

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IPC IPC(8): C08L71/03C08L27/06C08L51/00C08K13/02C08K5/098C08K3/04C08K3/26C08K5/12C08K3/22C08K5/37
Inventor 谭贤志
Owner 谭贤志
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