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A kind of preparation method of high damping constant Mooney viscosity natural rubber and the product thereof

A natural rubber and constant Mooney technology, which is applied in the field of high damping constant Mooney viscosity natural rubber and its preparation, can solve problems such as failure, mechanical property damage, damping performance decline, etc., and achieve easy addition, small change in Mooney viscosity, The effect of high equivalent damping ratio

Active Publication Date: 2022-06-28
周其彬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method improves the damping performance of the product, the mechanical properties are damaged
In addition, the small molecule damping agent is easy to precipitate out of the product over time, resulting in a decrease in the damping performance of the product or even failure

Method used

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  • A kind of preparation method of high damping constant Mooney viscosity natural rubber and the product thereof
  • A kind of preparation method of high damping constant Mooney viscosity natural rubber and the product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Crush the wrinkled sheet glue, rinse the impurities, dry it, and weigh it for later use.

[0029] Weigh the constant viscosity hydrazine ethanol according to 5‰ of the weight of the crepe glue, then add it together with the crepe glue into a dry mixer and mix, and stir for 4 minutes.

[0030] Then, through cooling, briquetting and other processes, the constant Mooney viscosity natural rubber is obtained.

Embodiment 2

[0032] Carry out according to the process described in Example 1, but before adding the constant viscosity agent hydrazine ethanol, weigh the maleic anhydride-modified polystyrene according to 10% of the weight of the crepe glue, and put it in a dry mixer together with the crepe glue. It was stirred for 4 minutes in the medium and then treated with the constant viscosity hydrazinoethanol.

Embodiment 3

[0034] Crush the wrinkled sheet glue, rinse the impurities, dry it, and weigh it for later use.

[0035] The maleic anhydride-modified polystyrene was weighed according to 5% of the crepe glue weight, and stirred together with the crepe glue in a dry mixer for 3 minutes.

[0036] Then, 2‰ of the weight of the crepe glue was sprayed into the dry mixer with the constant viscosity agent hydrazine-based ethanol, and the mixing was continued for 3 minutes.

[0037] Then, through the processes of cooling and briquetting, the natural rubber with high damping constant Mooney viscosity is obtained.

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Abstract

The invention discloses a preparation method of high-damping constant Mooney viscosity natural rubber and the obtained product, which belong to the technical field of natural rubber processing. It adds maleic anhydride modified polystyrene and constant viscosity to crepe rubber. The production method of the present invention is simple, low in cost and high in efficiency, and the obtained high damping constant Mooney viscosity natural rubber has high equivalent damping ratio and excellent mechanical properties; Mooney is stable and can be directly mixed with Other materials are mixed to prepare high-damping rubber products, which can be widely used in bridge shock absorption and vehicle shock absorption, and have high promotion value.

Description

technical field [0001] The invention relates to the technical field of natural rubber processing, in particular to a high damping constant Mooney viscosity natural rubber with high equivalent damping ratio, stable Mooney viscosity, good rubber consistency and excellent mechanical properties and a preparation method thereof. Background technique [0002] Vibration often brings serious harm to people's life and production, which must be controlled by effective means. Damping rubber uses the dynamic viscoelastic behavior of rubber to convert vibration energy into heat energy and dissipate it into the environment, thereby reducing the harm caused by vibration. The higher the equivalent damping ratio of the rubber, the stronger this conversion ability. [0003] There are many raw rubber choices for damping rubber. The commonly used ones are natural rubber, butyl rubber, nitrile rubber, etc. Among them, natural rubber is the most widely used due to its wide source, low price and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L25/06C08K5/24
CPCC08L7/00C08L25/06C08K5/24
Inventor 周其彬
Owner 周其彬
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