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Prick-resistant leakage-proof material for inner tube-free tyre and its preparation method and spray-coating method

A tire and inner tube technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of lack of high temperature resistance, low temperature resistance, oil resistance and water resistance, simple coating method, inability to achieve results, etc. Tightness and adhesion, improve safety effect

Inactive Publication Date: 2010-03-17
SHANGHAI HONGWEI ENTERPRISE MANAGEMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This anti-puncture tire composition does not have high temperature resistance, low temperature resistance, oil resistance and water resistance, which has a negative impact on the normal use of the tire
Moreover, after being punctured, the tire coated with this anti-puncture composition can only maintain airtightness for a limited time after taking out the puncture, and finally needs to repair the tire or replace it with a new tire.
The coating method disclosed in this patent is too simple, and even cannot achieve the expected effect in the specification of this patent, and it is suspected that the disclosure is insufficient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Step 1, mix 80kg SEBS and 120kg white oil for industrial use according to the ratio, stir and foam in a container for 24 hours to form a mixed material for later use;

[0028] Step 2. Put the foamed mixed material into the reaction pot, add 2.4kg carbon 5 and 0.8kg TPE, heat at 250-280°C for 20 minutes, stop heating after the mixed material melts, and cool to 190°C It's ready to spray.

[0029] When spraying, the tire should be rotated in a balanced manner at about 90 revolutions per minute, and the thickness of the sprayed leak-proof layer should be 5-8mm. The spraying thickness is controlled by the spraying time and spraying amount. After spraying, the speed of rotation should be increased to 120 rpm, so that under the action of centrifugal force, the anti-leakage layer material will be evenly cooled on the inner wall of the tire, and the cooling time is about 5 minutes, so that the anti-leakage layer of the tire is formed.

[0030] In addition, ultrasonic or impact...

Embodiment 2

[0032] Step 1, mix 80kg SEBS and 160kg white oil for industrial use according to the ratio, stir and foam in a container for 24 hours to form a mixed material for later use;

[0033] Step 2. Put the foamed mixed material into the reaction pot, add 0.8kg of carbon 9 and 4kg of TPE, heat at a temperature of 250-280°C for 20 minutes, stop heating after the mixed material melts, and cool to 170°C. Sprayed.

[0034] The rest are the same as Example 1.

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Abstract

The invention discloses a tubeless tyre leak-proof material and making and spraying method, which comprises the following parts: 1% SEBS, 1. 5-2% industrial white oil, 0.01-0.03% carbon 9 and 0.01-0.05% TPE. The making method comprises the following steps: blending SEBS and industrial white oil; stirring; foaming to form composite material; putting foamed composite material in the autoclave; adding carbon 5 or carbon 9 and TPE; heating to 250-280 deg. c; cooling to 170-190 deg. c. The spraying method comprises the following steps: spraying fused leak-proof material into tyre at 190-170 deg. c;distributing the lead-proof material on the inner wall of tyre evenly.

Description

technical field [0001] The invention relates to an anti-puncture and anti-leakage material for a tubeless tire and a preparation and spraying method thereof. organic polymer material [0002] technology field. Background technique [0003] Anti-puncture and anti-leakage tires are a functional product developed in recent years. Currently on the market, you can also see some materials used for anti-puncture tires, which can be roughly divided into: ① tire structure modification type (such as adding thin steel plates to tires); ② liquid type (such as injecting high-viscosity liquid into tires to seal dense material). Assessed from the feasibility and reliability, ① structure change type, the steel plate must be put in when the tire is manufactured, not to mention its reliability, it may not be feasible for many tire manufacturers; ② liquid type, it will affect the safety of driving, mainly It will increase the vibration when driving and the corrosion of the inner wall of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/12C08L53/02
Inventor 刘俭程彪
Owner SHANGHAI HONGWEI ENTERPRISE MANAGEMENT
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