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A tire with polyurethane elastomer material inside and its preparation method

A technology of polyurethane elastomer and polyurethane elasticity, which is applied in the direction of polyurea/polyurethane coating, polyurea/polyurethane adhesive, special tires, etc., can solve the problems of difficult processing and high processing cost, achieve low hardness and prevent tire leakage The effect of air deviation and high deformation

Active Publication Date: 2018-08-10
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problems of high processing difficulty and high processing cost in existing air-tight tires and their preparation methods, and provide a tire with polyurethane elastomer material inside and its preparation method

Method used

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  • A tire with polyurethane elastomer material inside and its preparation method
  • A tire with polyurethane elastomer material inside and its preparation method
  • A tire with polyurethane elastomer material inside and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A tire with a polyurethane elastomer material inside in this embodiment includes a tire body 1, wherein: the tire with a polyurethane elastomer material inside also includes a polyurethane primer layer 2 and a polyurethane elastomer layer 3, so The polyurethane primer layer 2 and the polyurethane elastomer layer 3 are sequentially arranged on the inner surface of the tire body 1 from inside to outside, and the total thickness of the polyurethane primer layer and the polyurethane elastomer layer is 3-4 mm.

[0043] The material used for the polyurethane primer 2 is composed of A component and B component with a mass ratio of 1:1,

[0044] The A component consists of the following raw materials in weight ratio:

[0045] 20 parts of castor oil, 12 parts of butyl acetate, 38 parts of polymethylene polyphenylisocyanate and 30 parts of trichlorethylene;

[0046] Described B component is made up of the raw material of following weight ratio:

[0047] 40 parts of polytetrahyd...

Embodiment 2

[0063] A tire with a polyurethane elastomer material in this embodiment is the same as that in Embodiment 1.

[0064] The material used for the polyurethane primer 2 is composed of A component and B component with a mass ratio of 1:1,

[0065] The A component consists of the following raw materials in weight ratio:

[0066] 25 parts of castor oil, 7 parts of butyl acetate, 33 parts of polymethylene polyphenylisocyanate and 35 parts of trichlorethylene;

[0067] Described B component is made up of the raw material of following weight ratio:

[0068] 60 parts of polytetrahydrofuran diol with a relative molecular mass of 1000 and 40 parts of xylene.

[0069] The material for the polyurethane base coat 2 is made by the following steps:

[0070] (1) Synthesis of component A: put 25 parts of castor oil in a reactor with a condenser, dehydrate for 2 hours at 120°C and a vacuum of -0.09Mpa, cool down to 40°C after dehydration, and take acetic acid Add 7 parts of butyl ester into t...

Embodiment 3

[0084] A tire with a polyurethane elastomer material in this embodiment is the same as that in Embodiment 1.

[0085] The material used for the polyurethane primer 2 is composed of A component and B component with a mass ratio of 1:1,

[0086] The A component consists of the following raw materials in weight ratio:

[0087] 21 parts of castor oil, 11 parts of butyl acetate, 37 parts of polymethylene polyphenylisocyanate and 31 parts of trichlorethylene;

[0088] Described B component is made up of the raw material of following weight ratio:

[0089] 45 parts of polytetrahydrofuran diol with a relative molecular mass of 1000 and 55 parts of xylene.

[0090] The material for the polyurethane base coat 2 is made by the following steps:

[0091] (1) Synthesis of component A: put 21 parts of castor oil in a reactor with a condenser, dehydrate for 2 hours at 120°C and a vacuum of -0.09Mpa, cool down to 40°C after dehydration, and take acetic acid Add 11 parts of butyl ester into...

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Abstract

The invention relates to a tire with a polyurethane elastomer material inside and a preparation method thereof. The preparation method comprises the following steps: uniformly applying a polyurethane primary coat on the inner surfaces of the tire and tire shoulder; and when the polyurethane primary coat surface is slightly sticky, uniformly applying a polyurethane elastomer layer on the surface. The polyurethane primary coat is composed of a component A and a component B. The component A comprises castor oil, butyl acetate, polymethylene polyphenyl isocyanate and trichloroethylene. The component B comprises polytetramethylene glycol and dimethylbenzene. The polyurethane elastomer is composed of a component C and a component D. The component C comprises polyether glycol, 4,4'-diphenylmethane diisocyanate and a plasticizer. The component D comprises polyether glycol, a plasticizer and a catalyst. The tire provided by the invention can be made by directly processing and upgrading the existing tire, has favorable self-recovery and air leakage resistance effects, and thus, has longer service life. The processing does not influence the original structure and properties of the tire, so the tire ensures the driving safety and life safety of people and has obvious social benefits and active social effects.

Description

technical field [0001] The invention relates to a tire with a polyurethane elastomer material inside and a preparation method thereof, and belongs to the technical field of polyurethane vehicle tires and preparation methods thereof. In particular, it relates to a polyurethane elastomer material coated and bonded on the inner surface of the tire and the inner surface of the tire shoulder. This material can prevent the occurrence of air leakage after the tire is punctured by foreign objects. Air leak effect. Background technique [0002] With the development of the automobile industry and the continuous growth of the number of automobiles, improving the safety performance of motor vehicle tires has become one of the important research projects of various scientific research institutions and automobile manufacturing giants. It is a very dangerous thing for a car to have a tire leak during high-speed driving. When it is serious, it will cause a traffic accident of car crash and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60C19/12B60C1/00C09J175/04C09D175/08C09D7/63C08K5/12C08G18/48
CPCB60C19/12C08G18/4825C08G18/4833C08G18/4854C08K5/12C09D7/63C09D175/08
Inventor 赵志换范济民
Owner TAIYUAN UNIV OF TECH
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