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High-toughness waste rubber asphalt and preparation method thereof

A technology of waste rubber and waste rubber powder, which is applied in building components, building insulation materials, construction, etc., can solve problems such as market promotion resistance, and achieve the effects of solving high temperature environment, improving viscosity and toughness, and reducing costs

Inactive Publication Date: 2014-04-30
HENAN PROVINCE ZHONGYUANDETONG NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods can turn waste into wealth, reduce pollution, reduce product cost, and improve product performance with environmental benefits. However, the rubber-modified asphalt produced by the above-mentioned method belongs to the modified asphalt in the traditional sense and technically. High temperature stability is challenged, and there is great resistance in marketing

Method used

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  • High-toughness waste rubber asphalt and preparation method thereof
  • High-toughness waste rubber asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 1. Prepare materials according to the following proportions by weight:

[0037] Base bitumen (Road No. 70 bitumen): 89.5 copies Waste rubber powder (60 mesh): 10.0 copies Activator (thiuram disulfide): 0.20 servings Nano toughening agent (nano carbon black): 0.20 servings Cross-linking agent (ethylene glycol bisacryloyl ester): 0.10 parts

[0038] 2. Preparation of high toughness rubber modified asphalt

[0039] Put all the above base asphalt in a high-temperature tank, heat it to 150°C and melt it, then pump it through a metering device and send it to a processing reaction kettle with heating and heat preservation functions; at the same time, put all the above waste rubber powder, activator, nano The toughening agent and cross-linking agent are transported to the processing reactor through the gas metering and conveying device, and the matrix asphalt, waste rubber powder, activator, nano-toughening agent, and cross-linking ag...

Embodiment 2

[0044] 1. Prepare materials according to the following proportions by weight:

[0045] Base asphalt (No. 90 road asphalt): 84.07 copies Waste rubber powder (30 mesh): 15.0 servings Activator (diethanolamine): 0.30 servings Nano Toughener (Nano Calcium Carbonate) 0.45 servings Crosslinking agent (melamine formaldehyde resin): 0.18 servings

[0046] 2. Preparation of waste rubber solid modified asphalt

[0047] Put all the above base asphalt in a high-temperature tank, heat it to 160°C and melt it, then pump it through a metering device and send it to a processing reaction kettle with heating and heat preservation functions; at the same time, put all the above waste rubber powder, activator, nano The toughening agent and cross-linking agent are transported to the processing reactor through the gas metering and conveying device, and the matrix asphalt, waste rubber powder, activator, nano-toughening agent, and cross-linking agent ar...

Embodiment 3

[0052] 1. Prepare materials according to the following proportions by weight:

[0053] Base asphalt (No. 90 road asphalt): 79.34 copies Waste rubber powder (90 mesh): 20.0 servings Activator T (thiuram disulfide) 0.30 servings Nano Toughener (Nano Boron Nitride) 0.20 servings Cross-linking agent (acetate acrylic resin emulsion): 0.16 servings

[0054] 2. Preparation of waste rubber solid modified asphalt

[0055] Put all the above base asphalt in a high-temperature tank, heat it to 155°C and melt it, then pump it through a metering device and send it to a processing reaction kettle with heating and heat preservation functions; at the same time, put all the above waste rubber powder, activator, nano The toughening agent and cross-linking agent are transported to the processing reactor through the gas metering and conveying device, and the matrix asphalt, waste rubber powder, activator, nano-toughening agent, and cross-linking agen...

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Abstract

The invention discloses high-toughness waste rubber asphalt. The high-toughness waste rubber asphalt comprises substrate asphalt, waste rubber powder, an activating agent, a nanometer toughening agent and a crosslinking agent. A preparation method of the high-toughness waste rubber asphalt comprises the following steps: heating the substrate asphalt for melting, adding the waste rubber powder, the activating agent, the nanometer toughening agent and the crosslinking agent in sequence, mixing and uniformly stirring to obtain an asphalt mixture; and performing the process treatment of high-speed colloid milling, high-speed shearing, crosslinking reaction, stability development and the like on the asphalt mixture in sequence to obtain the high-toughness waste rubber asphalt. The high-toughness waste rubber asphalt has the advantages of reasonable preparation process, low product price, lower storage temperature than products of the same type, aging resistance, high bonding performance and high low-temperature crack resistance, and the defect of limitation on the toughness of conventional modified asphalt used in a low-temperature environment is overcome.

Description

technical field [0001] The invention relates to a rubber asphalt and a preparation method thereof, in particular to a high-toughness waste rubber asphalt and a preparation method thereof. Background technique [0002] With my country's economic development, the automobile industry has also developed rapidly, and the output of waste rubber has increased sharply. By 2013, the number of waste tires in China has reached more than 300 million, with a total weight of about 15 million tons. The resource utilization of waste tires has already become a problem that the Chinese government needs to solve. On the one hand, discarded tires pollute the environment, but they are also valuable resources. , plus rubber hoses, tapes, rubber shoes and other rubber products, the waste rubber produced every year exceeds 20 million tons. At present, the recycling and comprehensive utilization of waste rubber is mainly incineration to generate heat and produce recycled rubber. Incineration and he...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L21/00C08K13/02C08J3/24
Inventor 梁清源
Owner HENAN PROVINCE ZHONGYUANDETONG NEW ENERGY TECH
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