Dicyclopentadiene polymer modified asphalt and preparation method thereof

A technology of dicyclopentadiene and modified asphalt, used in building structures, building components, building insulation materials, etc., can solve the problem of durability not meeting industry expectations, increase rigidity, improve road performance, and simplify processes Effect

Active Publication Date: 2018-10-02
ZHONGLU HI TECH (BEIJING) HIGHWAY TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Taking steel bridge deck pavement as an example, although my country has made a lot of technological development and made significant progress in this worldwide problem, its durability is still far from the 8-10 year level expected by the industry.

Method used

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  • Dicyclopentadiene polymer modified asphalt and preparation method thereof
  • Dicyclopentadiene polymer modified asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This embodiment provides a dicyclopentadiene and / or dicyclopentadiene derivative polymer modified asphalt and a preparation method thereof, the steps are as follows:

[0041] First put 100 parts of petroleum asphalt into 135°C for drying, put it into a heating mantle and cool it to 110°C, then start stirring; prepare 20 parts of kerosene, and slowly add it to the petroleum asphalt; stir until it is uniform, then place In the state of normal temperature, let it cool down, and component A can be obtained.

[0042] Put dicyclopentadiene and / or dicyclopentadiene derivatives into 30-40°C for heating and heat preservation to dissolve, take 75 parts of dicyclopentadiene and / or dicyclopentadiene derivatives, add 20.99 parts of kerosene, and wait until fully stirred , add 1 part of triphenylphosphine and stir slightly, then add 0.01 part of grubbs2 generation catalyst, and stir evenly at room temperature to obtain component B.

[0043] Then get 92 parts of component A and 100 p...

Embodiment 2

[0045] This embodiment provides a dicyclopentadiene and / or dicyclopentadiene derivative polymer modified asphalt and a preparation method thereof, the steps are as follows:

[0046] First put 100 parts of petroleum asphalt into 135°C for drying, put it in a heating mantle and cool it to 110°C, then start stirring; prepare 20 parts of gasoline, and slowly add it to the base asphalt; stir until it is uniform, then place In the state of normal temperature, let it cool down, and component A can be obtained.

[0047] Put dicyclopentadiene and / or dicyclopentadiene derivatives into 30-40°C to heat and heat-preserve to dissolve, take 90 parts of dicyclopentadiene and / or dicyclopentadiene derivatives, add 8.99 parts of kerosene, and wait until fully stirred , add 4 parts of triphenylphosphine and stir slightly, then add 0.01 part of grubbs2 generation catalyst, and stir evenly at room temperature to obtain component B.

[0048] Then take 126 parts of component A and 60 parts of compon...

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Abstract

The invention relates to a dicyclopentadiene polymer modified asphalt and a preparation method thereof. The modified asphalt comprises a component A, a component B, and a component C. The component Acomprises 80 to 90% of matrix asphalt and 10 to 20% of diluent. The component B comprises 75% to 90% of dicyclopentadiene and / or dicyclopentadiene derivatives, 8 to 21% of diluent, 0.01 to 0.05% of catalyst, and 1 to 4% of polymerization inhibitor. The component C is a flexibilizer. Added dicyclopentadiene and / or dicyclopentadiene derivatives can carry out addition reactions to modify asphalt, a large amount of benzene rings are introduced into the structure of cured substances, the rigidity of the material is enhanced, at the same time, a large amount of double bonds are taken as flexible chain segments, and the flexibility of the material is improved. Compared with thermoplastic polymer modified asphalt concrete, the provided modified asphalt concrete has higher strength, longer servicelife, and improved pavement properties, moreover, the preparation temperature is low, and the environmentally friendly property is good.

Description

technical field [0001] The invention relates to the field of traffic engineering materials, in particular to a dicyclopentadiene polymer-modified asphalt and a preparation method and application thereof. Background technique [0002] Heavy-duty roads in my country generally use thermoplastic elastomer SBS modified asphalt technology. At present, this technology has been used for nearly 20 years, and it has been unable to meet the durability requirements of the road surface structure and materials expected by the industry. Technical innovation and upgrading are urgently needed. At the same time, the long-life asphalt pavement with a design life of 40-50 years is a hot technology actively researched and developed at home and abroad. This new generation of pavement technology must use higher-durability asphalt materials, and the service life of materials should preferably reach 20-30 years. about. [0003] At present, the thermosetting resins in the high-strength and high-dura...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L45/00C08L91/00C08L9/06C08L53/02C08L57/02
CPCC08L95/00C08L2205/035C08L45/00C08L91/00C08L9/06C08L53/02C08L57/02
Inventor 张海燕曹东伟夏磊谭由容
Owner ZHONGLU HI TECH (BEIJING) HIGHWAY TECHNOLOGY CO LTD
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