Waste tire rubber powder modified asphalt and preparation method thereof

A technology of waste tire rubber and modified asphalt, which is applied to building components, building insulation materials, construction, etc., can solve the problems of poor product storage stability, high processing temperature, and inconvenient transportation, and achieve large-scale promotion and application, high-temperature storage Good stability and low energy consumption

Inactive Publication Date: 2016-05-25
江苏文昌新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method needs extremely high processing temperature because the viscosity of the waste tire rubber powder increases instantaneously after being added, and the storage stability of the product after production is poor, and the transportation is inconvenient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of used tire rubber powder modified asphalt provided by the present embodiment, the raw material comprises by weight: 45 parts of Shell 90# base asphalt, 18 parts of waste tire rubber powder, 3 parts of polyethylene wax, 3-(dodecane Oxy)-2-hydroxypropyl-N-acetoxy-N,N-dimethylammonium chloride 8 parts, pine tar oil 4 parts, diallyl disulfide 2 parts, cyclic monosulfide 1 part , 5 parts of modifier;

[0036] The modifier raw material components are composed of the following raw materials in parts by weight: 23 parts of dodecyl phosphate, 13 parts of stearic acid, 5 parts of sodium lignosulfonate, 1 part of butylamine, bisimidazoline 3 copies;

[0037] The waste tire rubber powder is the waste tire rubber powder ground and pulverized by normal temperature process, the source of the tire is bias tire, the fineness specification is 130 mesh, the relative density is 1.15, the metal content is less than 0.05%, the fiber content is less than 1%, the rubber hydrocarbon ...

Embodiment 2

[0043] A kind of waste tire rubber powder modified asphalt provided by the present embodiment, the raw material includes by weight: 50 parts of Shell 90# base asphalt, 22 parts of waste tire rubber powder, 4 parts of polyethylene wax, 3-(dodecane 10 parts of oxy)-2-hydroxypropyl-N-acetoxy-N,N-dimethylammonium chloride, 5 parts of pine tar, 4 parts of diallyl disulfide, 2 parts of cyclic monosulfide , 6 parts of modifier;

[0044] The modifier raw material components are composed of the following raw materials in parts by weight: 25 parts of dodecyl phosphate, 18 parts of stearic acid, 7 parts of sodium lignosulfonate, 2 parts of butylamine, bisimidazoline 5 copies;

[0045] The waste tire rubber powder is ground and pulverized waste tire rubber powder at room temperature. The source of the tire is a bias tire, the fineness specification is 140 mesh, the relative density is 1.15, the metal content is less than 0.05%, the fiber content is less than 1%, and the rubber hydrocarbo...

Embodiment 3

[0051] A kind of waste tire rubber powder modified asphalt provided by the present embodiment, the raw material includes by weight: 55 parts of Shell 90# base asphalt, 28 parts of waste tire rubber powder, 6 parts of polyethylene wax, 3-(dodecane Oxy)-2-hydroxypropyl-N-acetoxy-N,N-dimethylammonium chloride 11 parts, pine tar oil 7 parts, diallyl disulfide 5 parts, cyclic monosulfide 3 parts , 8 parts of modifier;

[0052] The modifier raw material components are composed of the following raw materials in parts by weight: 27 parts of dodecyl phosphate, 21 parts of stearic acid, 10 parts of sodium lignosulfonate, 3 parts of butylamine, bisimidazoline 7 copies;

[0053] The waste tire rubber powder is the waste tire rubber powder ground and pulverized by normal temperature process, the source of the tire is bias tire, the fineness specification is 135 mesh, the relative density is 1.30, the metal content is less than 0.05%, the fiber content is less than 1%, the rubber hydrocarb...

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PUM

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Abstract

The invention discloses a waste tire rubber powder modified asphalt which is prepared from the following raw materials in parts by weight: 45-55 parts of matrix asphalt, 18-28 parts of waste tire rubber powder, 3-6 parts of polyethylene wax, 8-11 parts of 3-(dodecaalkoxy)-2-hydroxypropyl-N-acetoxy-N,N-dimethylammonium chloride, 4-7 parts of pine tar, 2-5 parts of diallyl disulfide, 1-3 parts of cyclic monosulfide and 5-8 parts of modifier. The modifier is composed of the following raw materials in parts by weight: 23-27 parts of dodecylphosphate, 13-21 parts of stearic acid, 5-10 parts of sodium lignosulfonate, 1-3 parts of butyl amine and 3-7 parts of diimidazoline. The rubber powder modified asphalt mixture obviously lowers the temperature in the production, spreading and rolling process, thereby lowering the energy consumption, reducing the emissions of dense smoke and toxic gas, promoting the large-scale popularization and application of the rubber powder modified asphalt mixture, and being beneficial to promoting the recycling of waste tires. Thus, the waste tire rubber powder modified asphalt solves the problem of severe environmental pollution caused by the traditional waste tire treatment mode composed of piling, landfilling and incineration, and also solves the problems of severe technique pollution and high energy consumption caused by tire devulcanization regeneration.

Description

technical field [0001] The invention relates to a modified asphalt and a preparation method thereof, in particular to a waste tire rubber powder modified asphalt and a preparation method thereof, belonging to the technical field of asphalt modification. Background technique [0002] Waste tire rubber modified asphalt belongs to a kind of road construction material. It is an effective bonding pavement material in road construction, especially road paving engineering. It has the advantages of energy saving, environmental protection, multi-purpose, convenient use and economy. . Rubber powder modified asphalt is the modified asphalt colloidal material obtained after waste rubber powder undergoes physical and chemical reactions with base asphalt and various polymer modifiers in special equipment at high temperature. Because the rubber powder particles are connected through the gel film to form a semi-solid connection system with high viscosity, the rubber modified asphalt has go...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L21/00C08L23/06C08L91/00C08K13/02C08K5/19C08K5/09C08K5/521C08K5/17
CPCC08L95/00C08L2201/08C08L2205/035C08L2207/24C08L21/00C08L23/06C08L91/00C08K13/02C08K5/19C08K5/09C08K5/521C08K5/17
Inventor 苏文国苏俊坡苏兴智黄梅奚盼张彬
Owner 江苏文昌新材料科技有限公司
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