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Environment-friendly asphalt and production process thereof

A modified asphalt and environmental protection technology, applied in building thermal insulation materials, building components, buildings, etc., can solve the problems of limited improvement range and insignificant overall improvement effect of asphalt performance, so as to improve the anti-rutting ability, and the raw materials are non-toxic and harmless. , the effect of simple preparation process

Inactive Publication Date: 2019-02-22
高秀阁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the current research on modified asphalt only uses polymers as modifiers, and the overall improvement effect on asphalt performance is not obvious, and the improvement range is limited.

Method used

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  • Environment-friendly asphalt and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Environmentally-friendly modified asphalt, in parts by weight, is prepared from the following raw materials: 2 parts of styrene-butadiene rubber, 95 parts of petroleum asphalt, 0.9 parts of polyphosphoric acid, 0.2 parts of crosslinking agent, 2 parts of phosphorus-containing flame retardant, poly 1.2 parts of vinyl wax, 5 parts of stone powder, 0.2 parts of nonylphenol, 0.35 parts of dispersant, and 0.2 parts of diphenylamine.

[0027] The crosslinking agent is isopropyl titanate.

[0028] The phosphorus-containing flame retardant is a cellulose-based nitrogen-phosphorus flame retardant.

[0029] The dispersant is sodium hexametaphosphate.

[0030] The stone powder is a modified spodumene powder.

[0031] The modified spodumene powder is prepared by the following method: add 20 g of spodumene powder to 200 mL of deionized water, stir at 300 r / min for 15 min to obtain a uniform dispersion, and adjust the pH with 0.1 mol / L dilute hydrochloric acid to 2. Ultrasonic tre...

Embodiment 2

[0037] Environmentally-friendly modified asphalt, in parts by weight, is prepared from the following raw materials: 2 parts of styrene-butadiene rubber, 95 parts of petroleum asphalt, 0.9 parts of polyphosphoric acid, 0.2 parts of crosslinking agent, 2 parts of phosphorus-containing flame retardant, poly 1.2 parts of vinyl wax, 5 parts of stone powder, 0.2 parts of nonylphenol, 0.35 parts of dispersant, and 0.2 parts of diphenylamine.

[0038] The crosslinking agent is isopropyl titanate.

[0039] The phosphorus-containing flame retardant is a cellulose-based nitrogen-phosphorus flame retardant.

[0040] The dispersant is sodium hexametaphosphate.

[0041] The stone powder is spodumene powder.

[0042] The production process of the above-mentioned environmentally friendly modified asphalt comprises the following steps:

[0043]S1. Heat the asphalt at 155°C to complete melting, add styrene-butadiene rubber, polyethylene wax, stone powder, nonylphenol, dispersant, diphenylami...

Embodiment 3

[0047] Environmentally friendly modified asphalt, calculated in parts by weight, is prepared from the following raw materials: 2 parts of styrene-butadiene rubber, 95 parts of petroleum asphalt, 0.9 parts of polyphosphoric acid, 0.2 parts of crosslinking agent, 2 parts of phosphorus-containing flame retardant, 1.2 parts of vinyl wax, 5 parts of stone powder, 0.2 part of nonylphenol, 0.35 part of dispersant, and 0.2 part of diphenylamine.

[0048] The crosslinking agent is isopropyl titanate.

[0049] The phosphorus-containing flame retardant is a cellulose-based nitrogen-phosphorus flame retardant.

[0050] The dispersant is sodium hexametaphosphate.

[0051] The stone powder is a modified product of spodumene powder.

[0052] The spodumene powder modified product is prepared by the following method: adding 20 g of spodumene powder to 200 mL of deionized water, stirring at a rotational speed of 300 r / min for 15 min to obtain a uniform dispersion, and adjusting the pH to be 0...

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Abstract

The invention discloses environment-friendly asphalt and a production process thereof. The environment-friendly asphalt is prepared from the following raw materials in parts by weight: 1-3 parts of butadiene styrene rubber, 90-100 parts of asphalt, 0.4-1.3 parts of polyphosphoric acid, 0.1-0.3 part of a crosslinking agent, 1-3 parts of a phosphorus containing flame retardant, 0.8-1.8 parts of polyethylene wax, 3-8 parts of stone flour, 0.05-0.4 part of nonylphenol, 0.2-0.6 part of a dispersant and 0.1-0.3 part of diphenylamine. According to the environment-friendly asphalt and the production process thereof provided by the invention, the preparation process is simple and the raw materials are non-toxic and harmless. The modified asphalt can improve the flamer retardance, high-temperature performance and deformation resistance of matrix asphalt, so that the performance of the asphalt is improved comprehensively, the rut resistance of an asphalt pavement is improved greatly, and the availability of the asphalt pavement is enhanced.

Description

technical field [0001] The invention relates to a modified asphalt, in particular to an environment-friendly modified asphalt and a production process thereof. Background technique [0002] Asphalt is generally regarded as an interfacial substance formed by dissolving or dispersing asphaltene micelles with a stable phase colloid in a oleoresin medium, and has colloidal properties. However, the chemical composition of bitumen cannot be precisely defined due to the different crude oils from which bitumen is extracted, aging during the refining process and the service of bitumen, which is very complex and variable. It is generally believed that asphalt is composed of two components, asphaltene and resin, and the latter is further subdivided into saturated hydrocarbons, aromatic hydrocarbons and colloids. Asphaltene has a high molecular weight and a large diameter (about 10mm), which is different from that in asphalt. The other components are different and not easily compatible...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L9/06C08L23/06C08L1/02C08L5/08C08K13/06C08K9/02C08K9/04C08K3/32C08K5/18
CPCC08K2003/329C08L95/00C08L2201/02C08L2201/08C08L2205/035C08L9/06C08L23/06C08L1/02C08L5/08C08K13/06C08K9/02C08K9/04C08K3/32C08K5/18
Inventor 高秀阁
Owner 高秀阁
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