Preparation method of rubber modified additive

A rubber modification and additive technology, applied in the field of rubber, can solve the problems of negative impact on other properties of rubber, high cost of carbon black, layering performance, etc., and achieve the effect of improving the effect, improving the dispersion effect, and improving the low temperature resistance performance

Inactive Publication Date: 2019-01-18
蚌埠创特新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rubber generally has good elasticity and certain wear resistance. However, in some industries with high wear resistance, it still cannot directly meet the requirements. For example, in the field of sealing materials, rubber is required to have good wear resistance and aging resistance. The performance of a single rubber material cannot meet the above requirements. Therefore, the wear resistance of the rubber is often increased by adding fillers to the rubber, such as adding carbon black to the rubber. However, the cost of carbon black is relatively high, and there are also Adding calcium carbonate whiskers or other inorganic fillers improves the wear resistance of the rubber, however, this will have a negative impact on other properties of the rubber
The wear resistance of rubber can also be improved by compounding a variety of rubbers, but different rubbers are not easy to disperse during processing, and are prone to delamination or uneven performance. New fillers need to be provided to improve the performance of rubber.

Method used

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  • Preparation method of rubber modified additive
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Embodiment 1

[0019] A preparation method for an additive for rubber modification, comprising the following steps:

[0020] (1) Crush the attapulgite, treat it with a sulfuric acid solution with a mass fraction of 10% for 15-20 minutes, then wash it with water for 2-3 times, then use an ethanol solution with a volume fraction of 60% for 3-4 times, and dry it for later use ;

[0021] (2) Prepare a zinc sulfate solution with a mass fraction of 10%, then add attapulgite treated in step (1) to the solution, stir and mix evenly, use ultrasonic treatment for 38min, and then add attapulgite weight 1% twelve Sodium alkyl sulfonate, stirred for 30min, the weight ratio of zinc sulfate solution and attapulgite is 9:1;

[0022] (3) Continuously add ammonia water dropwise to the solution obtained in step (2), use ultrasonic waves to treat the mixed solution during the dropping process, then evaporate the obtained product to dryness, and treat the residual solid at 140-145°C After 2 hours, the treated ...

Embodiment 2

[0026] A preparation method for an additive for rubber modification, comprising the following steps:

[0027] (1) Crush the attapulgite, treat it with a sulfuric acid solution with a mass fraction of 10% for 15-20 minutes, then wash it with water for 2-3 times, then use an ethanol solution with a volume fraction of 60% for 3-4 times, and dry it. Then use asphalt modification;

[0028] a. To prepare emulsified asphalt, mix the emulsifier with water to prepare an emulsifier aqueous solution with a mass fraction of 5-8%, adjust the Ph to 3-4, then heat to 75°C, heat the asphalt to 170°C, and then spray the asphalt After melting, spray the prepared emulsifier aqueous solution while stirring continuously, the stirring speed is 1500-2000r / min, and then use ultrasonic vibration treatment for 25-30min to obtain emulsified asphalt;

[0029] b. Mix the emulsified asphalt prepared in step a with attapulgite in a weight ratio of 1:15-20, add a silane coupling agent of 1.5% by weight of a...

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Abstract

The invention relates to a preparation method of a rubber modified additive. The preparation method comprises the following steps: (1) crushing attapulgite and processing the same for later use; (2) treating the attapulgite powder with a zinc sulfate solution; and (3) carrying out nanometer compound modification on the attapulgite. According to the additive provided by the invention, based on theattapulgite as the primary raw material, the production cost of rubber is lowered, and the wear resistance of the rubber can be enhanced obviously.

Description

technical field [0001] The invention belongs to the field of rubber, and in particular relates to a preparation method of an additive for rubber modification. Background technique [0002] Rubber refers to a highly elastic polymer material with reversible deformation. It is elastic at room temperature, can produce large deformation under a small external force, and can return to its original shape after the external force is removed. Rubber generally has good elasticity and certain wear resistance. However, in some industries with high wear resistance, it still cannot directly meet the requirements. For example, in the field of sealing materials, rubber is required to have good wear resistance and aging resistance. The performance of a single rubber material cannot meet the above requirements. Therefore, the wear resistance of the rubber is often increased by adding fillers to the rubber, such as adding carbon black to the rubber. However, the cost of carbon black is relativ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/30C09C3/06C09C3/10C08K9/12C08K9/04C08K3/22C08K3/34C08L9/02C08L23/16
CPCC08K3/22C08K3/346C08K9/08C08K9/12C08K2003/2296C08K2201/011C08L9/02C08L23/16C09C1/3045C09C1/3072C09C1/309C09C3/006C09C3/06C09C3/10
Inventor 郭艳
Owner 蚌埠创特新材料科技有限公司
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