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High-modulus asphalt flame retardant

A flame retardant, high-modulus technology, used in building components, building insulation materials, buildings, etc., can solve the problems of inconvenient transportation and environmental protection, complex asphalt composition, poor strength and comprehensive flame retardant performance of asphalt flame retardants , to achieve good flame retardant effect, easy transportation, and the effect of reducing adhesion

Pending Publication Date: 2021-06-08
贵州中路交通技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, while asphalt pavement meets the requirements, it also brings new problems: the composition of asphalt is extremely complex, which is generally considered to be composed of four components: asphaltene, colloid, aromatic and saturated components
[0005] However, in the prior art, most conventional asphalt flame retardants are powdery, which is inconvenient for transportation and environmental protection; moreover, the strength and comprehensive performance of conventional asphalt flame retardants are not good, which seriously affects the quality of asphalt flame retardants. the quality of

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: A high-modulus asphalt flame retardant consists of the following raw materials by weight: 30 parts of organic retardant and 70 parts of inorganic retardant; wherein, the organic retardant consists of the following parts by weight Composition of raw materials: 40-45 parts of polyethylene, 5-10 parts of polypropylene, 45-40 parts of rubber and 5-10 parts of polyurethane. The inorganic retardant is composed of the following raw materials by weight: aluminum hydroxide 40 -60 parts, 40-60 parts of magnesium hydroxide and 10-20 parts of phosphorus-based inorganic flame retardants.

[0018] The rubber is devulcanized rubber.

[0019] The phosphorus-based inorganic flame retardant is a mixture of one or more of red phosphorus flame retardant, ammonium phosphate and ammonium polyphosphate.

[0020] The particle size of the organic retardant is 40-120 mesh, and the particle size of the inorganic retardant is 0.5-5mm.

Embodiment 2

[0021] Embodiment 2: A high-modulus asphalt flame retardant is composed of the following raw materials in parts by weight: 60 parts of organic retardant and 40 parts of inorganic retardant; wherein, the organic retardant consists of the following parts by weight Composition of raw materials: 40-45 parts of polyethylene, 5-10 parts of polypropylene, 45-40 parts of rubber and 5-10 parts of polyurethane. The inorganic retardant is composed of the following raw materials by weight: aluminum hydroxide 40 -60 parts, 40-60 parts of magnesium hydroxide and 10-20 parts of phosphorus-based inorganic flame retardants.

[0022] The rubber is devulcanized rubber.

[0023] The phosphorus-based inorganic flame retardant is a mixture of one or more of red phosphorus flame retardant, ammonium phosphate and ammonium polyphosphate.

[0024] The particle size of the organic retardant is 40-120 mesh, and the particle size of the inorganic retardant is 0.5-5mm.

Embodiment 3

[0025] Embodiment 3: A high-modulus asphalt flame retardant, consisting of the following raw materials by weight: 40 parts of organic retardant and 60 parts of inorganic retardant; wherein, the organic retardant consists of the following parts by weight Composition of raw materials: 40-45 parts of polyethylene, 5-10 parts of polypropylene, 45-40 parts of rubber and 5-10 parts of polyurethane. The inorganic retardant is composed of the following raw materials by weight: aluminum hydroxide 40 -60 parts, 40-60 parts of magnesium hydroxide and 10-20 parts of phosphorus-based inorganic flame retardants.

[0026] The rubber is devulcanized rubber.

[0027] The phosphorus-based inorganic flame retardant is a mixture of one or more of red phosphorus flame retardant, ammonium phosphate and ammonium polyphosphate.

[0028] The particle size of the organic retardant is 40-120 mesh, and the particle size of the inorganic retardant is 0.5-5mm.

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Abstract

The invention discloses a high-modulus asphalt flame retardant, which is composed of the following raw materials in parts by weight: 30 to 60 parts of organic flame retardant and 40 to 70 parts of inorganic flame retardant, wherein the organic flame retardant material is composed of the following raw materials in parts by weight: 40 to 45 parts of polyethylene, 5 to 10 parts of polypropylene, 45 to 40 parts of rubber and 5 to 10 parts of polyurethane, and the inorganic flame retardant material is composed of the following raw materials in parts by weight: 40 to 60 parts of aluminum hydroxide, 40 to 60 parts of magnesium hydroxide and 10 to 20 parts of phosphorus-based inorganic flame retardant. In the application, desulfurized rubber is adopted, and net connection between S-S bonds in the desulfurized rubber can be avoided, so that the situation that the overall pavement is affected by local pressure loss of the asphalt flame retardant in the use process is avoided. The organic flame retardant is matched with the inorganic flame retardant, so that the asphalt flame retardant has the high modulus (high strength) performance of the organic flame retardant, and also has the good flame retardant effect of the inorganic flame retardant.

Description

technical field [0001] The invention relates to the technical field of road construction, in particular to a high-modulus asphalt flame retardant. Background technique [0002] With the leapfrog development of highway construction in our country, the number and scale of highway tunnels are also increasing year by year. At the same time, higher requirements are put forward for the safety and comfort of tunnel pavement, and it is difficult for cement concrete to meet the requirements of modern tunnel pavement. Compared with asphalt concrete pavement, it has high flatness, good skid resistance, low noise and less dust. Asphalt concrete pavement has become the mainstream of today's tunnel pavement. [0003] However, while asphalt pavement meets the requirements, it also brings new problems: the composition of asphalt is extremely complex, and it is generally considered to be composed of four components: asphaltene, colloid, aromatic component and saturated component. Asphalt ...

Claims

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Application Information

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IPC IPC(8): C08K3/22C08K3/02C08K3/32C08L23/06C08L23/12C08L21/00C08L75/04C08L95/00
CPCC08K3/22C08K3/02C08K3/32C08L23/06C08L23/12C08L21/00C08L75/04C08L95/00C08K2003/2227C08K2003/2224C08K2003/026C08K2003/322C08K2003/323C08L2201/02
Inventor 舒明充王文伟叶飞季成
Owner 贵州中路交通技术有限公司