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Modified building asphalt and production method thereof

A technology of construction asphalt and production methods, which is applied in the direction of construction, building components, building structures, etc., can solve the problems of high temperature stability and low temperature crack resistance, reduce the temperature sensitivity of asphalt, and high production costs, and achieve waterproof performance Excellent, improved softening point, high anti-oxidation efficiency

Inactive Publication Date: 2010-10-20
合肥宝盈新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this technology of adding polymers can effectively improve the gelation degree of asphalt, enhance the elastic deformation capacity of asphalt, and reduce the temperature sensitivity of asphalt, it must also improve the high temperature stability and low temperature due to large temperature changes. Crack resistance is relatively difficult. Moreover, even if a small number of polymers can significantly improve the high and low temperature performance of asphalt, the production cost is high due to the large amount of addition and the high price.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Take 15 parts of vacuum residue (parts by volume, the parts mentioned below are all parts by volume), 5 parts of aromatic petroleum resin, 10 parts of reinforced glass fiber tire, 3 parts of aluminum stearate, 1, 3, 5 parts - Mix 5 parts of trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene, heat the mixture to 130°C, add 5 parts of thermoplastic elastomer SBS, and stir until Mix the SBS masterbatch with 60 parts of basic asphalt at 150°C until the raw materials are evenly dissolved, and mix them evenly at 150°C, add them to the reaction kettle, and keep the reaction at 350°C for 1.5 hours to obtain the desired product. Dip-coat the prepared product evenly on the glass fiber mat at 120°C, measure its penetration, softening point, and elongation after cooling, and compare the properties of the product obtained in Example 1 with the basic asphalt, as shown in Table 1:

[0029] Table I

[0030]

Penetration / dmm

Softening point / ℃

Elongation / ...

Embodiment 2

[0041] Take 10 parts of vacuum residue, 3 parts of aromatic petroleum resin, 5 parts of reinforced glass fiber tire, 5 parts of aluminum stearate, 1,3,5-trimethyl-2,4,6-tri(3,5 - Mix 3 parts of di-tert-butyl-4-hydroxybenzyl)benzene, heat the mixture to 140°C, add 2 parts of thermoplastic elastomer SBS, and stir until the raw materials are evenly dissolved to obtain the SBS masterbatch, mix the SBS masterbatch with 70 Mix one part of basic asphalt at 150°C, add it into the reaction kettle, and keep it at 350°C for 1.5 hours to get the desired product.

Embodiment 3

[0043] Take 20 parts of vacuum residue, 3 parts of aromatic petroleum resin, 5 parts of reinforced glass fiber tire, 4 parts of aluminum stearate, 1,3,5-trimethyl-2,4,6-tri(3,5 - Mix 4 parts of di-tert-butyl-4-hydroxybenzyl)benzene, heat the mixture to 130°C, add 8 parts of thermoplastic elastomer SBS, and stir until the raw materials are evenly dissolved to obtain the SBS masterbatch, mix the SBS masterbatch with 80 Mix one part of basic asphalt at 150°C, add it into the reaction kettle, and keep it at 380°C for 2 hours to obtain the desired product.

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PUM

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Abstract

The invention relates to modified building asphalt and also relates to a production method of the modified building asphalt. The modified building asphalt consists of basis asphalt, depressurized residual oil, thermoplastic elastomer SBS, dispersing agent, padding material, anti-stripping agent and anti-aging agent. The production method is characterized in that the depressurized residual oil, the dispersing agent, the padding material, the anti-striping agent and the anti-aging agent are made into SBS mother material together with the thermoplastic elastomer SBS after being mixed, and then the SBS mother material and the molten basic asphalt are heated inside a reactor to generate the required modified building asphalt. The modified building asphalt which is prepared with the raw materials and the method has the advantages of difficult flowing at high temperature, difficult fracture at low temperature, good stability, low cost, good economic benefit and the like.

Description

technical field [0001] The invention relates to asphalt, in particular to a modified building asphalt, and also to a production method of the modified building asphalt. Background technique [0002] Petroleum asphalt has good thermoplasticity, adhesion, and viscoelasticity, and is the basic material for building waterproofing projects. However, due to its strong sensitivity to temperature, it is easy to flow at high temperatures and brittle at low temperatures, and its strength is low and its elasticity is poor. The use of asphalt as a building waterproof base material can no longer meet the needs of modern construction projects, but modified building asphalt can overcome the above weaknesses to a certain extent, so the technology of modified building asphalt has been developed rapidly. [0003] For more than 100 years, people have carried out a lot of research and exploration in the field of modified asphalt, and carried out experimental research with various techniques. C...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L53/02C08L57/02C08K5/098C08K5/13
Inventor 车春玲
Owner 合肥宝盈新材料科技股份有限公司
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