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Asphalt resin binder

A technology of asphalt resin and binder, applied in the field of asphalt resin binder, can solve the problems of high price, unfavorable promotion and application, etc., and achieve the effects of high residual carbon, low softening point, and cheap and easy-to-obtain raw materials

Inactive Publication Date: 2014-04-30
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since asphalt resin is generally obtained by low-temperature condensation reaction of pure compounds such as naphthalene, anthraphenanthrene, pyrene, etc. under the catalysis of p-toluenesulfonic acid and the protection of inert gas, with cross-linking agents such as aromatic diols or aromatic aldehydes, the price is expensive. , which is not conducive to further promotion and application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Take 100g of coal tar and 50g of benzene and stir them evenly, add them into a 300mL filter kettle that uses a 2000-mesh white steel mesh as a filter screen and lay a mixture of 1cm-thick 120-mesh fine sand and 300-mesh perlite powder on the filter screen, heat up to 150°C, and use Nitrogen is pressurized, the pressure is 0.1MPa, the obtained filtrate is heated to 260°C under the protection of nitrogen and stirring, the flow rate of nitrogen is 0.1mL / min per gram of raw material, and the pressure is -0.09MPa Distilled for 60 minutes to obtain refined coal tar . Take 50g of refined coal tar and 75g of chloroform into a 250mL three-necked flask, then add 4g of p-cresol, 5.5g of 37% formaldehyde aqueous solution and 0.5g of 37% hydrochloric acid aqueous solution, stir well, and the resulting mixture Heating to 110°C under stirring, and reacting at constant temperature for 3 hours. After the reaction, put the product into a vacuum drying oven with a vacuum degree of -0.07MP...

Embodiment 2

[0021] Take 100g of coal tar and 100g of toluene and stir them evenly, add them into a 300mL filter kettle with a 2000-mesh white steel mesh as a filter, and lay a 1cm-thick 120-mesh fine sand and 300-mesh perlite powder mixture on the filter, raise the temperature to 110°C, and use Nitrogen pressurized, the pressure is 0.5MPa, the obtained filtrate is heated to 330°C under nitrogen protection and stirring, the nitrogen flow rate is 0.6mL / min per gram of raw material, and the pressure is -0.06MPa Distilled for 80 minutes to obtain refined coal tar . Take 50g of refined coal tar and 50g of chloroform into a 250mL three-necked flask, then add 4g of p-cresol, 5.5g of 37% formaldehyde aqueous solution and 0.1g of 37% hydrochloric acid aqueous solution, stir well, and the resulting mixture Heating to 110°C under stirring, and reacting at constant temperature for 4 hours. After the reaction, put the product into a vacuum drying oven with a vacuum degree of -0.09MPa, and dry it at 80...

Embodiment 3

[0023] Take 100g of coal tar and 200g of toluene and stir them evenly, add them to a 300mL filter kettle with a 2000-mesh white steel mesh as a filter and lay a mixture of 1cm-thick 120-mesh fine sand and 300-mesh perlite powder on the filter, heat up to 150°C, and use Nitrogen pressurized, the pressure is 0.1MPa, the obtained filtrate is heated to 300°C under nitrogen protection and stirring, the nitrogen flow rate is 0.6mL / min per gram of raw material, and the pressure is -0.09MPa Distilled for 40 minutes to obtain refined coal tar . Take 50g of refined coal tar and 75g of chloroform into a 250mL three-necked flask, then add 2g of p-cresol, 2.75g of 37% formaldehyde aqueous solution and 0.1g of 37% hydrochloric acid aqueous solution, stir well, and the resulting mixture Heating to 110°C under stirring, and reacting at constant temperature for 4 hours. After the reaction, put the product into a vacuum drying oven with a vacuum degree of -0.09MPa, and dry it at 80°C for 6 hour...

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Abstract

The invention discloses an asphalt resin binder which is prepared by condensation of refined coal tar and phenolic aldehyde under the catalysis action of an inorganic acid. Compared with an existing asphalt resin binder, the asphalt resin binder has the advantages the used raw materials are low in price and easy to available, the softening point of the asphalt resin binder is low, and the content of a quinoline insoluble is low; compared with phenolic resin, the asphalt resin binder is higher in carbon residue; and the specific surface area of the carbon residue is smaller, and thus the asphalt resin binder is an excellent carbon material binder.

Description

technical field [0001] The invention relates to a pitch resin binder which can be used for preparing carbon materials. Background technique [0002] Carbon materials are usually formed by adding 20% ​​to 30% binder to aggregates such as pitch coke and anthracite, and then sintered at a certain temperature. As a binder, coal tar pitch is currently mainly used, but because it contains volatile matter, it is prone to cracks during sintering, and the binder part after sintering is porous, so it is difficult to obtain high-density, high-strength carbon materials. Later, a method of using thermosetting resins such as phenolic resins as binders to form aggregates was developed. By controlling the sintering process parameters, high-density, high-strength carbon products can be obtained, but due to the methylene connection in the molecular structure of phenolic resins The tight packing of rigid aromatic rings makes the resin brittle, and because the phenolic group and methylene are ...

Claims

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Application Information

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IPC IPC(8): C08G8/28C08G8/10C08G8/12C10C1/00
Inventor 刘春玲祁亚军董文生付凤奇
Owner SHAANXI NORMAL UNIV
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