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A kind of preparation method of damping material

A technology for damping materials and preparation steps, which is applied in the field of preparation of damping materials, can solve the problems of low damping factor, high loss factor, and poor damping performance, and achieve high damping factor, simple preparation steps, and high damping and vibration reduction good performance

Active Publication Date: 2017-07-21
广州联洪合成材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention: the glass transition zone of polymer materials as damping materials is relatively narrow, and the effective damping temperature range is only 20-30°C, while practical applications require at least a temperature range of 60-80°C, and the glass transition The loss factor in the area is high, the damping factor β is only up to about 0.2, the temperature range is narrow and the damping factor is low, and the damping performance is poor. It provides a method to collect maple pulp and spider webs and mix them with concentrated sulfuric acid. Dehydration and removal of impurities to obtain carbonized products, steam them, add organic matter during the cooking process, and when they are gelatinous, take them out while they are hot and spin them, and rinse the filaments sequentially with potassium permanganate solution, nitric acid solution, hydrogen peroxide solution, and water , and then spin, carbonize, and irradiate the method of making damping materials to achieve the purpose of improving its damping and vibration reduction performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] First collect maple pulp and spider webs respectively, and stir the collected maple pulp and spider webs for 30 minutes in a mass ratio of 2:5 to make them fully mixed to obtain a mixture, and then add a mass fraction of 72% to the resulting mixture Concentrated sulfuric acid, the addition amount is 10% of the mass of the mixture, stir and mix and then carbonize for 1 hour to obtain carbonized products; then put the above-mentioned carbonized products into a round-bottomed pot, add water to it, and make it cover 3cm of the carbonized products. ℃ / min rate program to heat up to 95°C, carry out stirring and cooking, while cooking, add 1% lactose and 1% guar gum to the cooked product respectively, after adding, heat-preserve and cook for 30 minutes to obtain jelly , take out the jelly and spin it while it is hot to get a filament; then put the above-mentioned obtained filament into a 10% potassium permanganate solution for rinsing for 10 minutes, after rinsing, put the mass ...

example 2

[0020] First collect maple pulp and spider webs respectively, and stir the collected maple pulp and spider webs for 35 minutes according to the mass ratio of 2:5 to make them fully mixed to obtain a mixture, and then add a mass fraction of 74% to the resulting mixture Concentrated sulfuric acid, the addition amount is 13% of the mass of the mixture, stir and mix and then carbonize for 2 hours to obtain carbonized products; then put the above-mentioned carbonized products into a round bottom pot, add water to it, and make it cover 4cm of carbonized products. ℃ / min rate program to heat up to 98°C, carry out stirring and cooking, while cooking, add 3% lactose and 3% guar gum to the cooked product respectively, after the addition is completed, heat-preserve and cook for 35 minutes to obtain a jelly , take out the jelly and spin it while it is hot to get a filament; then put the above obtained filament into a 13% potassium permanganate solution for rinsing for 13 minutes, after rins...

example 3

[0023]First collect maple pulp and spider webs respectively, and stir the collected maple pulp and spider webs for 40 minutes at a mass ratio of 2:5 to make them fully mixed to obtain a mixture, and then add 75% of the mass fraction to the resulting mixture Concentrated sulfuric acid, the addition amount is 15% of the mass of the mixture, stir and mix and then carbonize for 2 hours to obtain carbonized products; then put the above-mentioned carbonized products into a round bottom pot, add water to it, and make it cover 5cm of the carbonized products. ℃ / min rate program temperature rise to 100 ℃, carry out stirring and cooking, while cooking, add 5% lactose and 5% guar gum to the cooked product respectively, after adding, keep warm and cook for 40min to get jelly , take out the jelly and spin it while it is hot to get a filament; then put the above obtained filament into a 15% potassium permanganate solution for rinsing for 15 minutes, after rinsing, put the mass fraction Rinse...

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Abstract

The invention discloses a preparation method of a damping material, and belongs to the technical field of preparation of damping materials. The method comprises the following steps: collecting maple slurry and mixing the maple slurry with a spider web; dewatering with concentrated sulfuric acid, and removing impurities to obtain a carbide; stewing the carbide and adding an organic matter in the stewing process; when a jelly is formed, taking out the jelly and spinning while hot; and washing a filament through a potassium permanganate solution, a nitric acid solution, a hydrogen peroxide solution and clean water in sequence, and then carrying out spinning, charring and irradiation to obtain the damping material. The preparation method has the beneficial effects that the preparation steps are simple; the obtained product is wide in temperature range of -60 DEG C to 220 DEG C; the damping factor is high; and the damping and vibration-reducing performance is good.

Description

technical field [0001] The invention relates to a method for preparing a damping material, which belongs to the technical field of damping material preparation. Background technique [0002] Damping material is a material that converts solid mechanical vibration energy into heat energy and dissipates it. It is mainly used for vibration and noise control. The damping material is divided into: rubber and plastic damping plates, which are used as sandwich layer materials. Butyl, acrylate, polysulfide, nitrile and silicone rubber, polyurethane, polyvinyl chloride and epoxy resin are more widely used. Rubber and foam plastics are used as damping and sound-absorbing materials. Butyl rubber and polyurethane foam are widely used to achieve the purpose of sound absorption by controlling the size of the cells, through holes or closed cells. Damping composite materials for vibration and noise control. It uses the first two types of materials as the damping sandwich layer, and then ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F9/17D01F9/18D01F11/16
CPCD01F9/17D01F9/18D01F11/16
Inventor 李大坤李云飞
Owner 广州联洪合成材料有限公司
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