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Flame-retardant modified asphalt material and preparation process thereof

A technology of modified asphalt and fuel retardant, which is applied in the direction of building insulation materials, building components, buildings, etc., can solve the problems of poor flame retardancy, performance impact, inconvenience, etc., and achieve improved compatibility, excellent flame retardant performance, and durability Grinding performance improvement effect

Pending Publication Date: 2020-05-22
蒋文彬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the routine use of asphalt, we generally need asphalt to maintain its excellent stability and aging resistance in complex environments. However, the existing asphalt will affect its performance in high temperature environments, and its flame retardancy is poor. inconvenient

Method used

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  • Flame-retardant modified asphalt material and preparation process thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] S1: Prepare materials:

[0049] Weigh pentaerythritol, phosphorus oxychloride, piperazine, triethylamine, acetonitrile, aluminum hydroxide, expandable graphite, decabromodiphenylethane, matrix pitch, warm mixing agent, auxiliary agent and filler in proportion, and set aside;

[0050] Weigh glucose solution, absolute ethanol, ammonia water, magnesium chloride, ethylene glycol, dimethyl terephthalate, zinc acetate and antimony trioxide in proportion, and set aside;

[0051] S2: Preparation of the first retardant fuel:

[0052] Take pentaerythritol and phosphorus oxychloride, mix and stir, and place under ultrasonic conditions, stir and react at 60°C for 3 hours, wash with dichloromethane 3 times, and dry to obtain material A;

[0053] Take piperazine, triethylamine and acetonitrile, heat and stir until completely dissolved, then add material A in batches, the number of batches is 3 times, heat up to 60°C, react for 16h, stand to cool after reaction, filter, wash and dry ...

Embodiment 2

[0067] S1: Prepare materials:

[0068] Weigh pentaerythritol, phosphorus oxychloride, piperazine, triethylamine, acetonitrile, aluminum hydroxide, expandable graphite, decabromodiphenylethane, matrix pitch, warm mixing agent, auxiliary agent and filler in proportion, and set aside;

[0069] Weigh glucose solution, absolute ethanol, ammonia water, magnesium chloride, ethylene glycol, dimethyl terephthalate, zinc acetate and antimony trioxide in proportion, and set aside;

[0070] S2: Preparation of the first retardant fuel:

[0071] Take pentaerythritol and phosphorus oxychloride, mix and stir, and place under ultrasonic conditions, stir and react at 65°C for 3.5h, wash with dichloromethane 4 times, and dry to obtain material A;

[0072] Take piperazine, triethylamine and acetonitrile, heat and stir until they are completely dissolved, then add material A in batches, the number of batches is 4 times, heat up to 70°C, react for 18h, stand to cool after the reaction, filter, was...

Embodiment 3

[0086] S1: Prepare materials:

[0087] Weigh pentaerythritol, phosphorus oxychloride, piperazine, triethylamine, acetonitrile, aluminum hydroxide, expandable graphite, decabromodiphenylethane, matrix pitch, warm mixing agent, auxiliary agent and filler in proportion, and set aside;

[0088] Weigh glucose solution, absolute ethanol, ammonia water, magnesium chloride, ethylene glycol, dimethyl terephthalate, zinc acetate and antimony trioxide in proportion, and set aside;

[0089] S2: Preparation of the first retardant fuel:

[0090]Take pentaerythritol and phosphorus oxychloride, mix and stir, and place under ultrasonic conditions, stir and react at 70°C for 4 hours, wash with dichloromethane 4 times, and dry to obtain material A;

[0091] Take piperazine, triethylamine and acetonitrile, heat and stir until completely dissolved, then add material A in batches, the number of batches is 4 times, heat up to 80°C, react for 20h, stand to cool after the reaction, filter, wash and d...

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Abstract

A flame-retardant modified asphalt material and a preparation process thereof are disclosed. The flame-retardant modified asphalt material comprises matrix asphalt, a warm mixing agent, a filling agent, a flame retardant and the like, and the flame retardant comprises a first flame retardant material, a second flame retardant material, a third flame retardant material and the like; wherein the first flame retardant material comprises pentaerythritol, phosphorus oxychloride, piperazine and other components; the first flame retardant material is an intumescent type flame retardant material, andan expansion heat insulation layer formed by volume expansion can be utilized to play a role in flame retardance at high temperature; the second flame retardant material comprises aluminum hydroxide,expandable graphite and decabromodiphenyl ethane, and the expandable graphite is also an intumescent flame retardant and can be expanded at high temperature to form a heat insulation layer. Accordingto the flame-retardant modified asphalt material and the preparation process thereof, the process design is reasonable, the component proportion is proper, the preparation of the flame-retardant modified asphalt material is effectively realized, and the asphalt material has excellent flame-retardant performance and excellent comprehensive performance, can be suitable for various working conditions, and has higher practicability.

Description

technical field [0001] The invention relates to the technical field of asphalt processing, in particular to a flame-retardant modified asphalt material and a preparation process thereof. Background technique [0002] Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid. It is liquid with a black surface and is soluble in carbon disulfide. Asphalt is a waterproof, moisture-proof and anti-corrosion organic gelling material. Pitch can be mainly divided into three types: coal tar pitch, petroleum pitch and natural pitch. Among them, coal tar pitch is a by-product of coking. Petroleum asphalt is the residue after distillation of crude oil. Natural bitumen is stored underground, and some form ore layers or accumulate on the surface of the earth's crust. Asphalt is mainly used in coatings, plastics, rubber and other industries as well as paving roads. [...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L27/18C08L27/14C08L67/02C08L83/04C08K13/04C08K7/24C08K5/521C08K3/22C08K5/03C08K3/34
CPCC08K2003/2227C08L95/00C08L2201/02C08L2205/035C08L2205/16C08L27/18C08L67/02C08L83/04C08K13/04C08K7/24C08K5/521C08K3/22C08K5/03C08K3/2279C08K3/34C08L27/14
Inventor 蒋文彬
Owner 蒋文彬