Self-repairing adhesive tape for tire and preparation method thereof

A self-repairing and tire technology, applied in the field of tire rubber strips, can solve the problems of increasing manufacturing costs, not being environmentally friendly, and not improving the effect, and achieving the effects of improving mechanical properties, low air permeability, and good elongation at break

Active Publication Date: 2020-09-29
WUXI I REACH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the anti-puncture performance of the tread and the overall impact resistance of the crown part, the method of adjusting the tread rubber composition or increasing the thickness of the rubber at the base of the crown groove is often used, but the improvement of the above performance of the tire has little effect , and it is not environmentally friendly and increases manufacturing costs

Method used

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  • Self-repairing adhesive tape for tire and preparation method thereof
  • Self-repairing adhesive tape for tire and preparation method thereof
  • Self-repairing adhesive tape for tire and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A tire self-repairing rubber strip according to the present invention has a formula shown in Table 1 below.

[0022] Table 1 A formula of tire self-repairing rubber strip

[0023]

[0024] A preparation method for a tire self-repairing rubber strip, comprising the steps of:

[0025] (1) Preparation of layer A: Add naphthenic oil, antioxidant 2246, and anti-ultraviolet agent 770 into the reaction kettle, react at 240°C for 2 hours, then add EVA, stir for 4 hours, and then discharge the material, and then use a coating machine to make a layer with a thickness of 2mm thick, 1.2m wide coils for use;

[0026] (2) Preparation of layer C: Heat the reaction kettle to 240°C, put in naphthenic oil, rubber and EVA, stir for 4 hours, add antioxidant 1010, rosin resin and filler, stir for another 4 hours, and discharge the materials through the die head Coating, use PE film on both sides, compound into a double-sided adhesive tape with a thickness of 1mm and a width of 1.2M for...

Embodiment 2

[0030] A tire self-repairing rubber strip of the present invention has a formula shown in Table 2 below.

[0031] Table 2 A formula of tire self-repairing rubber strip

[0032]

[0033]

[0034] A preparation method for a tire self-repairing rubber strip, comprising the steps of:

[0035] (1) Preparation of layer A: Add polyisobutylene, antioxidant 264, and anti-ultraviolet agent 770 to the reaction kettle, react at 240°C for 2 hours, then add EVA, stir for 4 hours, and then discharge the material, and then use a coating machine to make a thickness of 2mm Thickness, width of 1.2 meters of coils for use;

[0036] (2) Preparation of layer C: heat the reaction kettle to 240°C, put in polyisobutylene, rubber and EVA, stir for 4 hours, add antioxidant 1010, rosin resin and filler, stir for another 4 hours, discharge the materials through the die head for coating Cloth, with PE film on both sides, compounded into a double-sided adhesive tape with a thickness of 1mm and a wid...

Embodiment 3

[0040] A tire self-repairing rubber strip according to the present invention has a formula shown in Table 3 below.

[0041] Table 3 A formula of tire self-repairing rubber strip

[0042]

[0043] (1) Preparation of layer A: Add naphthenic oil, antioxidant 2246, and anti-ultraviolet agent 770 into the reaction kettle, react at 240°C for 2 hours, then add EVA, stir for 4 hours, and then discharge the material, and then use a coating machine to make a layer with a thickness of 2mm thick, 1.2m wide coils for use;

[0044](2) Preparation of layer C: Heat the reaction kettle to 240°C, put in naphthenic oil, rubber and EVA, stir for 4 hours, add antioxidant 1010, rosin resin and filler, stir for another 4 hours, and discharge the materials through the die head Coating, use PE film on both sides, compound into a double-sided adhesive tape with a thickness of 1mm and a width of 1.2M for use.

[0045] (3) Preparation of layer B: Mix polyamide resin, polyetherester fiber, filler, co...

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Abstract

The invention provides a self-repairing adhesive tape for a tire. The self-repairing adhesive tape comprises four layers from outside to inside, namely an anti-penetration layer A, an elastic layer B,a pressure-resistant layer C and a protective layer D, wherein the layer A is composed of a thermoplastic elastomer, a softener, an antioxidant and an anti-ultraviolet agent 770; the layer B is prepared from polyamide resin, polyether ester fibers, a filler, a coupling agent, an antioxidant and rubber; the layer C comprises rubber, a thermoplastic elastomer, resin, a softener, a filler and an antioxidant; and the layer D is release paper or a PE film. The preparation process of the self-repairing adhesive tape for the tire is environmentally friendly; and the self-repairing adhesive tape forthe tire has good elongation at break, rebound resilience and low air permeability, so the tire has a good protection and self-healing function on a harsh road surface.

Description

technical field [0001] The invention relates to a tire rubber strip, in particular to a tire self-repairing rubber strip. Background technique [0002] Tires, as the only part of the car in contact with the ground, directly affect the safety performance of the car. In the process of fast driving, the burst caused by tire damage always affects the life safety of the people in the car. According to statistics, my country's traffic accidents caused by tires are as high as 70%. Tire safety performance is the basic requirement for future development. Tires with super wear resistance, puncture resistance and good comfort have attracted attention. It is very urgent to improve the service life of tires. In order to improve the anti-puncture performance of the tread and the overall impact resistance of the crown part, the method of adjusting the tread rubber composition or increasing the thickness of the rubber at the base of the crown groove is often used, but the improvement of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B7/12B32B25/08B32B27/06B32B27/20B32B27/30B32B27/32B32B37/12B32B37/15C08L23/20C08L23/08C08L77/00C08L67/00C08L23/28C08L7/00C08L45/00C08K13/02C08K3/26C08K3/34C08K3/04C08J5/18B29C73/10B29L30/00
CPCB29C73/10B29L2030/00B32B7/12B32B25/08B32B27/06B32B27/20B32B27/306B32B27/32B32B37/1284B32B37/153B32B2307/50B32B2307/54B32B2307/7242B32B2605/08C08J5/18C08J2323/20C08J2345/00C08J2367/00C08J2377/00C08J2407/00C08J2423/08C08J2423/20C08J2423/28C08J2467/00C08J2477/00C08K3/04C08K3/346C08K13/02C08K2003/265
Inventor 蒋凯朱渊
Owner WUXI I REACH TECH
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