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Asphalt flame-retardant viscosity reducer and preparation method thereof

A technology of viscosity reducer and flame retardant additive, which is applied in the direction of building components, building insulation materials, construction, etc., and can solve the problems of reducing asphalt mixture mixing, paving, rolling temperature, reducing construction temperature, and reducing asphalt viscosity. Achieve the effects of improving high temperature performance, reducing construction temperature, and reducing asphalt viscosity

Inactive Publication Date: 2018-10-16
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an asphalt flame-retardant viscosity-reducing agent and its preparation method, which has flame-retardant effect and can effectively reduce the viscosity of asphalt, thereby reducing the mixing, paving and rolling temperature of asphalt mixture, reducing the construction temperature and reducing the construction time. Emission of harmful gases such as asphalt smoke and dust, overcome the problems of environmental pollution, high energy consumption, aging and decline of asphalt, and protect the health of construction workers

Method used

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  • Asphalt flame-retardant viscosity reducer and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0028] The preparation method of asphalt flame retardant viscosity reducer, the steps are as follows:

[0029] Heat 1.5 parts of chlorinated paraffin to melt, add 6 parts of polyethylene, 2 parts of aluminum hydroxide and stir at a constant temperature of 165°C for 20 minutes, then add 2 parts of stearic acid and stir at a constant temperature for 5 minutes to granulate.

Embodiment 2

[0031] The preparation method of asphalt flame retardant viscosity reducer, the steps are as follows:

[0032] Heat 2.5 parts of chlorinated paraffin until melted, add 1 part of polyethylene, 1 part of coumarone resin and 2 parts of expandable graphite, stir at 160°C for 10 minutes, then add 3 parts of stearic acid and stir for 5 minutes to granulate Can.

Embodiment 3

[0034] The preparation method of asphalt flame retardant viscosity reducer, the steps are as follows:

[0035] Heat 2 parts of chlorinated paraffin to melt, add 3 parts of polyethylene, 2 parts of coumarone resin, 3 parts of expandable graphite and 4 parts of magnesium hydroxide and stir at 165°C for 15 minutes, then add 2 parts of stearic acid at constant temperature Stir for 5 minutes to granulate.

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Abstract

The invention relates to an asphalt flame-retardant viscosity reducer and a preparation method thereof. The asphalt flame-retardant viscosity reducer comprises the following substances in parts by mass: 0.5-3 parts of a flame-retardant additive, 1-15 parts of a smoke-suppression additive and 2-4 parts of a fatty acid. The asphalt flame-retardant viscosity reducer has a flame-retardant effect and can effectively reduce the asphalt viscosity, so that the asphalt flame-retardant viscosity reducer is capable of reducing mixing, laying and rolling temperatures of an asphalt mixture, reducing the construction temperature, reducing emission of harmful gas such as asphalt flue gas and smoke dust and the like during the construction, solving the problems of environment pollution, large energy consumption, asphalt ageing decline, etc., and protecting the health of constructors. At the same time, the softening point of the asphalt is relatively high, so that the high-temperature stability of theasphalt can be improved.

Description

technical field [0001] The invention belongs to the field of petroleum asphalt flame-retardant viscosity-reducing agent, in particular to an asphalt flame-retardant viscosity-reducing agent and a preparation method thereof. Background technique [0002] Asphalt concrete pavement has gradually replaced cement concrete pavement and has become one of the main forms of road pavement in my country and developed countries due to its advantages such as comfortable driving, good wear resistance, low noise, and simple maintenance and repair. [0003] Traditional hot-mix asphalt mixtures have defects such as high mixing and paving temperatures, high emissions of harmful gases, and easy aging of asphalt mixtures, which have caused many ecological and environmental problems. And because of the flammability, dripping, and fluidity of asphalt, it also has a great potential fire hazard, especially in semi-enclosed places such as road tunnels. Once a fire breaks out, the fire will spread wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L91/06C08L23/06C08L45/02C08K7/24C08K3/22C08K5/09
CPCC08K2003/2224C08K2003/2227C08L95/00C08L2201/02C08L2201/08C08L2205/03C08L2205/035C08L2207/066C08L91/06C08L23/06C08L45/02C08K7/24C08K3/22C08K5/09
Inventor 马鹏程高淑美贾丽凤张传明许金山刘爱华毛冬梅
Owner CHINA PETROLEUM & CHEM CORP
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