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Chemical synthesis method of biological asphalt for roads

A bio-asphalt, chemical synthesis technology, applied in building structures, building components, building insulation materials, etc., can solve the problems of poor use performance of bio-asphalt, and achieve the effect of alleviating insufficient yield, simple synthesis process, and improving use performance.

Inactive Publication Date: 2020-09-08
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of poor performance of existing bio-asphalt, and to provide a preparation method of bio-asphalt for roads

Method used

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  • Chemical synthesis method of biological asphalt for roads
  • Chemical synthesis method of biological asphalt for roads

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specific Embodiment approach 1

[0012] Specific embodiment one: the chemical synthesis method of road bio-asphalt in this embodiment is implemented according to the following steps:

[0013] 1. Mix the bio-oil and the organic solvent in a mass ratio of 1:1 to 3, stir evenly to completely dissolve the bio-oil in the organic solvent, and obtain a bio-oil solution;

[0014] Two, add initiator tert-butyl peroxybenzoate in the biological oil solution that step one obtains, obtain mixed solution;

[0015] 3. Mix the accelerator cobalt naphthenate and the organic solvent, stir evenly so that the accelerator is completely dissolved in the organic solvent, and prepare the accelerator solution, then add the accelerator solution to the mixed solution obtained in step 2, and stir evenly to obtain reaction solution;

[0016] 4. Add the reaction solution obtained in step 3 into a reactor, and react at a temperature of 85-130° C. for 2-8 hours to obtain bio-asphalt for roads.

[0017] The raw materials used in this embod...

specific Embodiment approach 2

[0019] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the organic solvent described in step 1 is styrene. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0020] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the mass ratio of the bio-oil solution to the initiator tert-butyl peroxybenzoate in step 2 is 50-100:0.5-4. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention discloses a chemical synthesis method of biological asphalt for roads, relates to a preparation method of biological asphalt for roads, and aims to solve the problem of poor use performance of existing biological asphalt. The chemical synthesis method comprises the following steps: 1, mixing bio-oil and an organic solvent according to a mass ratio of 1:1-3, and stirring the substances uniformly to completely dissolve the bio-oil in the organic solvent to obtain a bio-oil solution; 2, adding an initiator into the bio-oil solution to obtain a mixed solution; 3, adding an accelerantsolution into the mixed solution, and stirring the substances uniformly to obtain a reaction solution; and 4, carrying out reaction for 2-8h at a temperature of 85-130DEG C to obtain the biological asphalt for roads. According to the invention, the initiator and the accelerant are added to realize free radical polymerization of the bio-oil with a small molecular weight into long-chain molecules,so that the viscosity of the bio-oil and the adhesiveness between the bio-oil and mineral aggregates are increased, the synthesis process is simple, and the prepared bio-asphalt meets the use performance of asphalt for roads.

Description

technical field [0001] The invention belongs to the field of road engineering, in particular to a method for preparing biological asphalt for roads. Background technique [0002] With the increasingly serious global energy crisis and environmental degradation, finding renewable resources and protecting the natural environment have become the main problems that humans need to solve. In the field of road engineering, petroleum asphalt is the main road construction material. According to statistics, the annual consumption of asphalt in my country is about 20 million tons. Due to the non-renewability of petroleum resources, the price of asphalt materials has skyrocketed in recent years. At the same time, the preparation and use of asphalt is accompanied by a large amount of carbon emissions. [0003] my country is a large agricultural and populous country, and the amount of plant straw and waste oil left in daily life is huge, which has a serious impact on the ecosystem. If i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L91/00C08K5/14C08K5/098C08L95/00
CPCC08K5/098C08K5/14C08L95/00C08L91/00
Inventor 易军艳孙朝杰裴忠实黄玉东冯德成
Owner HARBIN INST OF TECH
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