Waste rubber powder modified asphalt functional material and preparation method thereof

A technology of waste rubber powder and modified asphalt, which is applied to building insulation materials, building components, buildings, etc., can solve the problems of poor high-temperature storage stability of polymer-modified asphalt, and achieve poor high-temperature storage stability and easy operation , the effect of facilitating industrial production

Inactive Publication Date: 2020-06-05
荆门市诺维英新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, in order to solve the problem of poor high-temperature storage stability of current polymer-modified asphalt, the present invention provides a waste rubber powder modified asphalt functional material and a preparation method thereof

Method used

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  • Waste rubber powder modified asphalt functional material and preparation method thereof
  • Waste rubber powder modified asphalt functional material and preparation method thereof
  • Waste rubber powder modified asphalt functional material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] This embodiment provides a waste rubber powder modified asphalt functional material, which includes 80 parts of base asphalt, 50 parts of activated waste rubber powder, 15 parts of negative ion additives, 8 parts of montmorillonite, 30 parts of recycled rubber powder and silane coupling 8 parts;

[0029] The particle size of the negative ion additive is 15μmμm, the particle size of recycled rubber powder is 20μm; the particle size of the activated waste rubber powder is 20μm; the silane coupling agent is bis-[Y-(triethoxysilyl)propyl] -Tetrasulfide.

[0030] Wherein, the activated waste rubber powder is prepared through the following steps:

[0031] (1) Mix waste rubber powder with release agent and accelerator evenly, grind, and spray the activator in the rubber powder during the grinding process to obtain semi-finished products; the accelerator is ferric chloride; the activator is isopropyl Mercaptan.

[0032] (2) After repeated grinding of the semi-finished product, sievin...

Embodiment 2

[0039] This embodiment provides a waste rubber powder modified asphalt functional material, including 130 parts of base asphalt, 50 parts of activated waste rubber powder, 15 parts of negative ion additives, 8 parts of montmorillonite, 30 parts of regenerated rubber powder and silane coupling Agent 8 parts.

[0040] Among them, the particle size of the negative ion additive is 400μm, the particle size of the recycled rubber powder is 100μm; the particle size of the activated waste rubber powder is 80μm; the silane coupling agent is bis-[γ-(triethoxysilyl)propyl ]-Disulfide.

[0041] Wherein, the activated waste rubber powder is prepared through the following steps:

[0042] (1) Mix the waste rubber powder with the release agent and the accelerator evenly, and grind, and spray the activator in the rubber powder during the grinding process to obtain a semi-finished product;

[0043] (2) After repeated grinding of the semi-finished product, sieving, heating and stirring, to obtain activ...

Embodiment 3

[0051] This embodiment provides a waste rubber powder modified asphalt functional material, including 100 parts of base asphalt, 25 parts of activated waste rubber powder, 10 parts of negative ion additives, 4 parts of montmorillonite, 20 parts of recycled rubber powder and silane coupling 4 parts.

[0052] Among them, the particle size of the negative ion additive is 200μm, the particle size of recycled rubber powder is 60μm; the particle size of the activated waste rubber powder is 50μm; the silane coupling agent is bis-[Y-(triethoxysilyl)propyl ]-Tetrasulfide and bis-[γ-(triethoxysilyl)propyl]-disulfide mixture, and the mass ratio is 1:1.

[0053] Wherein, the activated waste rubber powder is prepared through the following steps:

[0054] (1) Mix the waste rubber powder with the release agent and the accelerator evenly, and grind, and spray the activator in the rubber powder during the grinding process to obtain a semi-finished product;

[0055] (2) After repeated grinding of the ...

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Abstract

The invention belongs to the technical field of asphalt improvement, and discloses a waste rubber powder modified asphalt functional material and a preparation method thereof. The waste rubber powdermodified asphalt functional material comprises 80-130 parts of matrix asphalt, 10-50 parts of activated waste rubber powder, 5-15 parts of a negative ion additive, 3-8 parts of montmorillonite, 10-30parts of regenerated rubber powder and 3-8 parts of a silane coupling agent. Through the mutual synergistic effect among modified montmorillonite, the silane coupling agent, and activated waste rubberpowder; the provided waste rubber powder modified asphalt functional material has good high-temperature storage stability, and the problem of poor high-temperature storage stability of conventional polymer modified asphalt is solved. In addition, the preparation method of the waste rubber powder modified asphalt functional material is easy to operate and convenient for industrial production.

Description

Technical field [0001] The invention belongs to the technical field of asphalt improvement, and specifically relates to a waste rubber powder modified asphalt functional material and a preparation method thereof. Background technique [0002] Research has found that adding waste rubber powder to asphalt to make polymer modified asphalt can greatly improve the performance of asphalt pavements, and can also realize the recovery and application of waste rubber products, alleviate the huge pressure on the environment caused by black pollution, and realize the environment Sustainable development of resources. Because waste rubber powder is made of vulcanized rubber with a relatively complete three-dimensional spatial network structure, when using waste rubber powder to modify asphalt, there is poor compatibility between rubber and asphalt, and it is difficult for asphalt to swell in the rubber powder. The processing of modified asphalt is difficult and the storage stability at high t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L19/00C08L17/00C08K9/04C08K3/34
CPCC08L95/00C08L2205/03C08L19/003C08L17/00C08K9/04C08K3/346
Inventor 韩俊女赵英杰
Owner 荆门市诺维英新材料科技有限公司
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