Flame-retarding asphalt and preparation method thereof

A technology of asphalt and petroleum asphalt, applied in the field of new road material preparation, can solve the problems of poor smoke suppression, smoke, and poor flame retardant effect of halogen flame retardants

Inactive Publication Date: 2017-10-24
常州万博金属构件厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem mainly solved by the present invention: for the existing flame retardant asphalt, the flame retardant effect is mainly achieved by adding a halogen flame retardant, but the smoke suppression performance of the halogen flame retardant is poor, and a large amount of smoke and toxic The gas will cause great harm to the human body and the environment, and at the same time, the defect of the flame retardant effect is poor. A kind of flame retardant asphalt and its preparation method are provided.

Method used

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  • Flame-retarding asphalt and preparation method thereof

Examples

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Effect test

example 1

[0026]Take 100g of petroleum asphalt and add it to a three-necked flask equipped with a thermometer and a reflux device. Place the three-necked flask in a magnetic stirrer with a digital display, speed measurement, and constant temperature. Add 15g of vinyltrimethoxysilane and 0.1g of diisophenylpropane peroxide to the flask, keep the temperature for 2 hours, then add 300mL of absolute ethanol into the three-necked flask, and move the three-necked flask into an ultrasonic disperser, with a frequency of 35KHz Ultrasonic dispersion for 30 minutes, take out the three-necked flask and put it into a water bath, control the temperature of the water bath to 85°C, then add 0.1g of benzoin dimethyl ether and 15mL of thioglycolic acid into the three-necked flask, stir and mix for 5min, then move the three-necked flask into a UV lamp The reaction was irradiated for 40 minutes. After the reaction, the product was obtained. The product was placed in an oven and dried at 80°C for 3 hours to ...

example 2

[0028] Take 150g of petroleum asphalt and add it to a three-necked flask equipped with a thermometer and a reflux device. Place the three-necked flask in a magnetic stirrer with a digital display, speed measurement, and constant temperature. Add 18g of vinyltrimethoxysilane and 0.2g of lauroyl peroxide to the flask, keep it warm for 2 hours, then add 350mL of absolute ethanol into the three-necked flask, and move the three-necked flask into an ultrasonic disperser for ultrasonic dispersion at a frequency of 38KHz After 35 minutes, take out the three-necked flask and put it into a water bath, control the temperature of the water bath to 90°C, then add 0.2g of benzoin dimethyl ether and 18mL of thioglycolic acid into the three-necked flask, stir and mix for 8min, then move the three-necked flask into the UV lamp for irradiation React for 45 minutes. After the reaction is over, the product is obtained. The product is placed in an oven and dried at 83°C for 3 hours to obtain a drie...

example 3

[0030] Take 200g of petroleum asphalt and add it to a three-necked flask equipped with a thermometer and a reflux device. Place the three-necked flask in a magnetic stirrer with a digital display, speed measurement, and constant temperature. Add 20g of vinyltrimethoxysilane and 0.3g of potassium persulfate into the flask, keep it warm for 3 hours, then add 400mL of absolute ethanol into the three-necked flask, and move the three-necked flask into an ultrasonic disperser, and ultrasonically disperse at a frequency of 40KHz for 40min , take out the three-necked flask and put it into a water bath, control the temperature of the water bath to 95°C, then add 0.3g of benzoin dimethyl ether and 20mL of thioglycolic acid into the three-necked flask, stir and mix for 10min, then move the three-necked flask into the ultraviolet lamp for irradiation reaction 50min, after the reaction is over, the product is obtained, the product is placed in an oven, and dried at 85°C for 4 hours to obtai...

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Abstract

The invention belongs to the technical field of preparation of novel materials for roads and in particular relates to flame-retarding asphalt and a preparation method thereof. The preparation method comprises the following steps: enabling petroleum asphalt to react with vinyltrimethoxysilane and an initiator; then adding a solvent and carrying out ultrasonic dispersion; then reacting with a photoinitiator and mercaptoacetic acid to obtain a product; carrying out ultrasonic dispersion on the product and a cobalt acetate solution; then stirring and drying to obtain modified petroleum asphalt; then heating and stirring the petroleum asphalt, nano carbon black, calcium alginate, a coupling agent and a smoke suppressant; finally, naturally cooling to room temperature to obtain the flame-retarding asphalt. The flame-retarding asphalt prepared by the preparation method has relatively good smoke suppression and flame-retarding effects; meanwhile, smoke generated in a combustion process of the flame-retarding asphalt does not cause dangers to human bodies and environment, so that the flame-retarding asphalt is an ideal pavement materials for the roads.

Description

technical field [0001] The invention belongs to the technical field of preparation of new road materials, and in particular relates to a flame-retardant asphalt and a preparation method thereof. Background technique [0002] With the development of high-grade highways, the number of highway tunnels continues to increase. The rigid cement concrete pavement commonly used in tunnels is gradually replaced by smooth, wear-resistant and low-noise flexible asphalt concrete pavement. During the use of tunnel asphalt pavement, the fire safety of asphalt concrete pavement has attracted more and more attention. Because asphalt is a flammable material, and the ventilation conditions in the tunnel are poor, if a traffic accident causes the asphalt pavement to catch fire, the fire will develop rapidly and people will not be able to evacuate in time, resulting in large casualties, which will inevitably cause unnecessary damage to the safety of life and property. loss. In addition, when ...

Claims

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Application Information

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IPC IPC(8): C08L51/00C08L5/04C08K3/04C08K5/544C08K3/22C08F8/42C08F289/00C08F230/08
CPCC08L51/00C08F8/42C08F289/00C08K2003/2224C08K2201/003C08K2201/011C08L2201/02C08L2201/22C08L5/04C08K3/04C08K5/544C08K3/22C08F230/08
Inventor 高产明宋玲潘宏梅
Owner 常州万博金属构件厂
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