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Rubber reinforcing agent for airtight layer and preparation method thereof

A technology of rubber reinforcing agent and airtight layer, which is applied in the field of rubber reinforcing agent for inner liner and its preparation, which can solve the problems of complicated carbon black production process, inability to change the adhesive force of rubber and nylon cord, and high production cost question

Active Publication Date: 2016-05-18
NINGHAI JIAHE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbon black is usually used for the rubber used in the inner liner; however, carbon black is mainly for mechanical strength reinforcement. After being used on the inner liner, although the mechanical strength is better, it cannot change the adhesion between rubber and nylon cords. Therefore, the impact on the airtightness of the inner liner is small, and the production process of carbon black is more complicated, the production process is more cumbersome, and the production cost is also higher

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A preparation method of rubber reinforcing agent for inner liner, which comprises the following steps:

[0018] 1). Crush, wash and dry the waste porcelain;

[0019] 2) Put the raw materials obtained in step 1) into a jet mill and mill, and the particle size is required to be ≥6000 mesh;

[0020] 3) Put the powder obtained in step 2) into the reactor, and add 2% rare earth, the temperature is 120°C, the reaction time is 57 minutes, and the stirring is constant;

[0021] 4). Then add 4.5% silane coupling agent into the reaction kettle, the temperature is 120℃, and keep stirring;

[0022] 5). When the total of the reaction time of step 4) plus the reaction time of step 3) is 1 hour, the material is discharged. After the material is cooled, the finished product is filled.

Embodiment 2

[0024] A preparation method of rubber reinforcing agent for inner liner, which comprises the following steps:

[0025] 1). Crush, wash and dry the waste porcelain;

[0026] 2) Put the raw materials obtained in step 1) into a jet mill and mill, and the particle size is required to be ≥6000 mesh;

[0027] 3) Put the powder obtained in step 2) into the reactor, and add 4% rare earth, the temperature is 180°C, the reaction time is 50 minutes, and the stirring is constant;

[0028] 4). Then add 1.5% silane coupling agent into the reaction kettle, the temperature is 180℃, and keep stirring;

[0029] 5). When the total of the reaction time of step 4) plus the reaction time of step 3) is 1 hour, the material is discharged. After the material is cooled, the finished product is filled.

Embodiment 3

[0031] A preparation method of rubber reinforcing agent for inner liner, which comprises the following steps:

[0032] 1). Crush, wash and dry the waste porcelain;

[0033] 2) Put the raw materials obtained in step 1) into a jet mill and mill, and the particle size is required to be ≥6000 mesh;

[0034] 3) Put the powder obtained in step 2) into the reactor, and add 2.5% rare earth, the temperature is 140°C, the reaction time is 53 minutes, and the stirring is constant;

[0035] 4). Then add 4% silane coupling agent into the reaction kettle, the temperature is 140℃, and keep stirring;

[0036] 5). When the total of the reaction time of step 4) plus the reaction time of step 3) is 1 hour, the material is discharged. After the material is cooled, the finished product is filled.

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Abstract

A rubber reinforcing agent for an air-tightness layer includes, by weight, 1.5%-4.5% of a silane coupling agent, 2%-4% of rare earth and the balance waste porcelain. A preparation method includes steps of: 1): crushing, washing and drying the waste porcelain, 2): grinding the waste porcelain with a granularity requirement being not less than 6000 meshes, 3): adding the rare earth and carrying out a reaction, 4): adding the silane coupling agent and carrying out a reaction, 5): outputting reaction products until an overall reaction time being 1 hour, cooling the reaction products and performing filling and packaging process to obtain a finish product. Compared with a rubber reinforcing agent in the prior art, the rubber reinforcing agent, on the premise of ensuring mechanical strength of an air-tightness layer, can increase air-tightness performance of the air-tightness layer. The rubber reinforcing agent is simple in production technology, short in production cycle and low in production cost.

Description

Technical field [0001] The invention belongs to the technical field of rubber filling materials, and particularly relates to a rubber reinforcing agent for an inner liner and a preparation method thereof. Background technique [0002] At present, in rubber products, in order to achieve different mechanical strengths, it is necessary to add rubber reinforcing agents. As for the rubber for the inner liner, carbon black is usually used; however, carbon black is mainly for mechanical strength reinforcement. After being used on the inner liner, although the mechanical strength is good, it cannot change the adhesion between the rubber and the nylon cord. Therefore, it has little influence on the airtight performance of the inner liner, and the production process of carbon black is more complicated, the production process is more complicated, and the production cost is also higher. Summary of the invention [0003] In view of the above problems, the present invention provides a rubber f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/06C08K3/00C08K3/08C08L21/00
Inventor 王少雄
Owner NINGHAI JIAHE CHEM
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