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Method for preparing flame-retardant and smoke-suppressing asphalt

A kind of asphalt and flame-retardant technology, which is applied in the direction of building components, building insulation materials, building structures, etc., can solve the problems of affecting the construction environment, polluting the environment, and threatening the health of workers, and achieves environmental friendliness, simple preparation method, and excellent performance. The effect of flame retardant and smoke suppression effect

Inactive Publication Date: 2018-11-06
FOSHAN LUBANG ASPHALT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a certain amount of smoke will be discharged during the heating process, which not only pollutes the environment and affects the construction environment, but also poses a great threat to the health of the staff.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Step 1: Mix 67% by mass of No. 90 base asphalt and 8% of flame retardant, heat and melt at 180°C, and then add 8% by mass of filler, 6% of chlorinated polystyrene Ethylene, 6% stabilizer, and 5% zinc ricinoleate were stirred and mixed uniformly at 500 r / min; the stabilizer was formed by mixing benzotriazole and aluminum stearate in a mass ratio of 3:1.

[0030] Step 2: Put the mixture obtained in Step 1 in an oven, control the temperature in the oven to 180°C, and develop for 90 minutes;

[0031] Step 3: Cut the mixture after the growth treatment in Step 2 for 90 minutes at 5000 r / min to obtain flame-retardant and smoke-suppressing asphalt;

[0032] The preparation method of the flame retardant is as follows: adding 60% aluminum hydroxide and 20% ammonium octamolybdate into a ceramic ball mill, and after ball milling for 25 minutes, use a 200-mesh vibrating sieve to pass through the vibrating sieve. The particles of the mixture were transferred into a microwave irradia...

Embodiment 2

[0036]Step 1: Mix 65% by mass of No. 90 base asphalt and 5% of flame retardant, heat and melt at 180°C, then add 10% by mass of filler, 4% of chlorinated polystyrene Ethylene, 8% stabilizer, and 8% zinc ricinoleate were stirred and mixed evenly at 500 r / min; the stabilizer was formed by mixing benzotriazole and aluminum stearate in a mass ratio of 3:1.

[0037] Step 2: Put the mixture obtained in Step 1 in an oven, control the temperature in the oven to 180°C, and develop for 90 minutes;

[0038] Step 3: Cut the mixture after the growth treatment in Step 2 for 90 minutes at 5000 r / min to obtain flame-retardant and smoke-suppressing asphalt;

[0039] The preparation method of the flame retardant is as follows: adding 59% aluminum hydroxide and 25% ammonium octamolybdate into a ceramic ball mill, and after ball milling for 25 minutes, use a 200-mesh vibrating sieve to pass through the vibrating sieve. The mixture particles were transferred into the microwave irradiation reactor...

Embodiment 3

[0043] Step 1: Mix 69% by mass of No. 90 base asphalt and 10% of flame retardant, heat and melt at 180°C, and then add 8% by mass of filler, 2% of chlorinated polystyrene Ethylene, 8% stabilizer, and 3% zinc ricinoleate were stirred and mixed uniformly at 500r / min; the stabilizer was formed by mixing benzotriazole and aluminum stearate in a mass ratio of 3:1.

[0044] Step 2: Put the mixture obtained in Step 1 in an oven, control the temperature in the oven to 180°C, and develop for 90 minutes;

[0045] Step 3: Cut the mixture after the growth treatment in Step 2 for 90 minutes at 5000 r / min to obtain flame-retardant and smoke-suppressing asphalt;

[0046] The preparation method of the flame retardant is as follows: adding 52% aluminum hydroxide and 30% ammonium octamolybdate into a ceramic ball mill, and after ball milling for 25 minutes, use a 200-mesh vibrating sieve to pass through the vibrating sieve. The particles of the mixture were transferred into a microwave irradia...

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PUM

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Abstract

The invention discloses a method for preparing flame-retardant and smoke-suppressing asphalt. According to the method, 65% to 75% of matrix asphalt, 5% to 10% of a flame retardant, 8% to 18% of a filler, 2% to 8% of a toughening agent, 5% to 12% of a stabilizer, 3% 11% of an odor neutralizer are used as raw materials, and the flame-retardant and smoke-suppressing asphalt is prepared through threesteps: heating for melting, developing treatment in an oven, and shearing. The flame retardant has excellent effects of flame retarding and smoke suppressing, can reduce or even completely prevent thegeneration of smoke in an asphalt production process, is highly efficient and environmentally friendly, and does no harm to the staff. The addition of stabilizer can improve the anti-aging performance of the asphalt, so that the asphalt does not change physically or chemically under use conditions of high temperature, low temperature and strong light, and the performance is kept stable. The odorneutralizer can improve odor generated in the asphalt production process, thereby improving construction conditions. The flame-retardant and smoke-suppressing asphalt in the invention is environmentally friendly, and has good effects of flame retarding and smoke suppressing and strong anti-aging capability; the preparation method is simple and easy to implement.

Description

technical field [0001] The invention belongs to the technical field of asphalt, and in particular relates to a method for preparing flame-retardant and smoke-suppressing asphalt. Background technique [0002] Asphalt is a non-polymer material blend with relatively small molecular weight and composed of many small molecular substances. It is mainly used in road construction. Asphalt has the characteristics of poor elasticity and aging resistance. Changes in temperature have a great influence on the performance of asphalt. When the temperature is high, the asphalt tends to soften or even melt. When the temperature is low, the asphalt tends to become brittle or even crack. This temperature-sensitive nature often makes the asphalt pavement prone to rutting in summer and thermal shrinkage cracking in winter, resulting in property loss and even traffic accidents, posing a threat to human life. [0003] With the rapid development of society, highway construction is listed as one o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L23/08C08L55/02C08L23/28C08L25/10C08L1/02C08K13/06C08K9/06C08K3/22C08K5/098C08K5/3475C08K7/06C08K7/14
CPCC08L95/00C08K2003/2227C08L2201/02C08L2205/035C08L23/0853C08L55/02C08L23/286C08L25/10C08L1/02C08K13/06C08K9/06C08K3/22C08K5/098C08K5/3475C08K7/06C08K7/14
Inventor 何岳霖何元发陈宇轩杜小挺傅世君
Owner FOSHAN LUBANG ASPHALT CO LTD
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