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Tyre repairing agent and preparation method thereof

A technology of tire sealant and solvent, which is applied in the direction of chemical instruments and methods, other chemical processes, etc., and can solve the problem of not being able to use the tire sealant in time

Inactive Publication Date: 2014-06-18
TOP ALLIANCE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, when the tire is manufactured, it is wrapped with a layer of PVA to prevent the tire from being punctured or damaged during transportation, but the PVA of this patent is quantitatively fixed on the inner wall of the tire. After wearing, the tire sealant cannot be used in time to repair again

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] G2-1227-C

[0048] Tire sealant A consists of 0.05%-1% polyvinyl alcohol, 0.01%-0.1% SDS, 10%-40% water, 0.02%-3% shell reprecipitated polysaccharide, and 55%-65% propylene glycol And 5%-20% glycerin composition. In order to avoid foam formation and oxidation, 0.02%-1% defoamer and 0.02%-1% antioxidant should be added. Size reduction of elastic polyvinyl alcohol gels and reprecipitated chitosan by shearing. Preferably, the viscosity of the puncture sealant is in the range of 20 to 500 mPa.s, and the pH of the puncture sealant is in the range of 7 to 10. The puncture sealant seals punctures made with 6.35 mm diameter spikes for 48 hours. This seal can seal tire punctures between -40 and 70 degrees. In addition, only a slight precipitate formed when left over a week.

Embodiment 2

[0050] G2-1227-D

[0051] Tire sealant B consists of 0.05%-1% polyvinyl alcohol, 0.01%-0.1% SDS, 10%-40% water, 0.02%-3% shell reprecipitated polysaccharide, and 30%-40% propylene glycol And 5%-20% glycerin composition. In order to avoid foam formation and oxidation, 0.02%-1% defoamer and 0.02%-1% antioxidant should be added. Size reduction of elastic polyvinyl alcohol gels and reprecipitated chitosan by shearing. Preferably, the viscosity of the puncture sealant is in the range of 20 to 500 mPa.s, and the pH of the puncture sealant is in the range of 7 to 10. The puncture sealant seals punctures made with 6.35 mm diameter spikes for 48 hours. This seal can seal tire punctures between -40 and 70 degrees. In addition, only a slight precipitate formed when left over a week.

Embodiment 3

[0053] G2-1233-G

[0054] The puncture sealant C consists of 0.05%-1% of ground polyvinyl alcohol that can pass through a 60-mesh filter, 0.01%-0.1% of SDS, 10%-40% of water, and 0.02%-3% of shell reprecipitated polysaccharide , 55%-65% propylene glycol and 5%-20% glycerin. Size reduction of elastic polyvinyl alcohol gels and reprecipitated chitosan by shearing. In order to avoid foam formation and oxidation, 0.02%-1% defoamer and 0.02%-1% antioxidant should be added. Preferably, the viscosity range of the puncture sealant is between 20 and 10000 mPa.s, and the pH value of the puncture sealant is between 7 and 10. The puncture sealant seals punctures made with 6.35 mm diameter spikes for 48 hours. This seal can seal tire punctures between -40 and 70 degrees. In addition, only a slight precipitate formed when left over a week.

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Abstract

The invention discloses a tyre repairing agent and a preparation method thereof. The tyre repairing agent comprises 35%-95% of a solvent, 0.05%-10% of a polyvinyl alcohol gel, 0.01%-5% of obstruction particles and 0.1%-10% of an additive, and the tyre repairing agent also can comprise 0.01%-5% of a chitosan gel. The method comprises steps: S1, dissolving polymer material particles, and controlling participant in the liquid medium to form a gel suspension material; S2, adding the additive into the liquid medium; and S3, adding obstruction particles into the liquid medium containing the gel suspension material. By employing the tyre repairing agent and the preparation method thereof, a through hole formed by a long nail with a diameter less than or equal to 6.35 mm can be sealed, a broken hole can be repaired at -40 DEG C to 70 DEG C, and the sealing time reaches up to 48 h or more.

Description

technical field [0001] The invention relates to a puncture sealant composition and a preparation method thereof, in particular to a puncture sealant which can directly pass through a valve core and a preparation method thereof. Background technique [0002] Tires are an important component of a car. A tire puncture that occurs while a vehicle is in motion is a potential hazard to the driver, especially if the driver is driving on a road or highway. And there are other dangers that drivers may encounter when changing tires or performing maintenance on tires on the highway. [0003] To keep tires running properly, puncture sealants, a liquid product that temporarily repairs holes, have been developed for decades. In simple terms, puncture sealants usually consist of a solvent of sealant, tackifier and antifreeze. There are also some commonly used ingredients that affect the sealing performance, such as ethylene glycol and propylene glycol, which are all necessary ingredient...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/12
Inventor 陈伟明林冠峰
Owner TOP ALLIANCE TECH
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