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Rubber material for connecting butyl inner tube and inflating valve and preparation method thereof

A butyl inner tube and valve technology, which is applied in the field of tire production, can solve the problems of destroying the air tightness of the inner tube, affecting the service life and safety performance of the inner tube, cracks, etc., and achieve high bonding strength, improve air retention and service life Effect

Inactive Publication Date: 2020-12-01
TIUMSUN RUBBER TIRE WEIHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The inner tube will be subjected to deformation and high temperature during the running of the vehicle. During the deformation process of the inner tube, the force on the edge of the valve rubber pad and the inner tube is concentrated, so that the connection between the valve and the inner tube is destroyed, cracks are generated, and the inner tube is damaged. The air tightness of the inner tube affects the service life and safety performance of the inner tube, which is related to the safety of the vehicle

Method used

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  • Rubber material for connecting butyl inner tube and inflating valve and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Embodiment 1: a kind of sizing material that connects butyl inner tube and valve, is made up of following components by weight:

[0079] Butyl rubber: 80 parts;

[0080] Soft carbon black: 30 parts;

[0081] Activator: 5 parts;

[0082] Petroleum resin: 5 parts;

[0083] Tackifying resin: 0.5 part;

[0084] White carbon black: 2 parts;

[0085] Coupling agent: 0.2 parts;

[0086] Accelerator: 0.5 parts;

[0087] Insoluble sulfur: 0.5 parts.

[0088] The activator adopts dihydrocarbyl zinc.

[0089] The coupling agent adopts long-chain alkyltrimethoxysilane.

[0090] The accelerator uses N,N-2 dicyclohexyl-2,2-dibenzothiazole sulfenamide.

[0091] A kind of preparation method that connects the sizing material of butyl inner tube and valve in embodiment 1, comprises the following steps:

[0092] S1, batching, carry out batching according to the formula of embodiment 1;

[0093] S2, internal mixing, butyl rubber, activator, petroleum resin, tackifying resin are ...

Embodiment 2

[0104] Embodiment 2: a kind of sizing material that connects butyl inner tube and valve, is made up of following components by weight:

[0105] Butyl rubber: 120 parts;

[0106] Soft carbon black: 80 parts;

[0107] Activator: 30 parts;

[0108] Petroleum resin: 35 parts;

[0109] Tackifying resin: 15 parts;

[0110] White carbon black: 22 parts;

[0111] Coupling agent: 3 parts;

[0112] Accelerator: 8 parts;

[0113] Insoluble sulfur: 6 parts.

[0114] The activator adopts dihydrocarbyl zinc.

[0115] The coupling agent adopts long-chain alkyltrimethoxysilane.

[0116] The accelerator uses N,N-2 dicyclohexyl-2,2-dibenzothiazole sulfenamide.

[0117] A kind of preparation method of the sizing material that connects butyl inner tube and valve in embodiment 2, comprises the following steps:

[0118] S1, batching, carry out batching according to the formula of embodiment 2;

[0119] S2, internal mixing, butyl rubber, activator, petroleum resin, tackifying resin are pu...

Embodiment 3

[0130] Embodiment 3: a kind of sizing material that connects butyl inner tube and valve, is made up of following components by weight:

[0131] Butyl rubber: 90 parts;

[0132] Soft carbon black: 40 parts;

[0133] Activator: 10 parts;

[0134] Petroleum resin: 10 parts;

[0135] Tackifying resin: 1 part;

[0136] White carbon black: 5 parts;

[0137] Coupling agent: 0.5 parts;

[0138] Accelerator: 1.5 parts;

[0139] Insoluble sulfur: 1 part.

[0140] The activator adopts dihydrocarbyl zinc.

[0141] The coupling agent adopts long-chain alkyltrimethoxysilane.

[0142] The accelerator uses N,N-2 dicyclohexyl-2,2-dibenzothiazole sulfenamide.

[0143] A kind of preparation method of the sizing material that connects butyl inner tube and valve in embodiment 3, comprises the following steps:

[0144] S1, batching, carry out batching according to the formula of embodiment 3;

[0145] S2, internal mixing, butyl rubber, activator, petroleum resin, tackifying resin are put...

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Abstract

The invention provides a rubber material for connecting a butyl inner tube and an inflating valve. The rubber material is composed of the following components in parts by weight: 80 to 120 parts of butyl rubber, 30 to 80 parts of soft carbon black, 5 to 30 parts of an activator, 5 to 35 parts of petroleum resin, 0.5 to 15 parts of tackifying resin, 2 to 22 parts of white carbon black, 0.2 to 3 parts of a coupling agent, 0.5 to 8 parts of an accelerant and 0.5 to 6 parts of insoluble sulfur. A preparation method of the rubber material for connecting the butyl inner tube and the inflating valvecomprises the following steps: S1, burdening; S2, internal mixing; S3, bolt lifting ; S4, bolt pressing; S5, feeding of master batch into an internal mixer; and S6, feeding of air-mixed rubber, the accelerant and the insoluble sulfur into the internal mixer. Due to the adoption of the above technical scheme, the bonding strength between the butyl inner tube and the inflating valve is high, the situation that the edge of the inflating valve is torn is avoided, the air-retaining property of the inner tube is improved, and the service life of the inner tube is prolonged.

Description

technical field [0001] The invention relates to the technical field of tire production, in particular to a rubber material for connecting a butyl inner tube and a valve and a preparation method thereof. Background technique [0002] At present, the inner tube is usually made of butyl rubber, and the inner tube mainly plays the role of air retention in the tire, and the air valve is usually made of brass or other metals. Therefore, it is necessary to use rubber to seal the butyl inner tube Connected with the valve, in the existing products, the adhesion strength is relatively low, all below 5.1kN / m. [0003] The inner tube will be subjected to deformation and high temperature during the running of the vehicle. During the deformation process of the inner tube, the force on the edge of the valve rubber pad and the inner tube is concentrated, so that the connection between the valve and the inner tube is destroyed, cracks are generated, and the inner tube is damaged. The air ti...

Claims

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Application Information

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IPC IPC(8): C08L23/22C08L57/02C08L101/00C08K13/04C08K3/04C08K7/26C08K3/06C08K5/5419C08K5/47C08K5/56
CPCC08L23/22C08K2201/011C08K2201/003C08L2205/03
Inventor 孟萍萍田桐善杨勇江张少军
Owner TIUMSUN RUBBER TIRE WEIHAI
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