Activated waste rubber powder modified asphalt material

A technology of modified asphalt and waste rubber powder, which is applied in the direction of building insulation materials, building components, buildings, etc., can solve problems such as difficult to achieve satisfactory technical improvement effects, not suitable for large-scale treatment, and unstable treatment effects, etc. Better capacitance, excellent performance and environmental protection, and effective ductility

Inactive Publication Date: 2017-09-26
安徽圣源橡塑科技有限公司
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AI Technical Summary

Problems solved by technology

Because rubber powder is obtained by mechanical destruction, its internal cross-linking structure is not completely destroyed, the movement of molecular chains on the surface is restricted, the surface of rubber powder is inert, and the compatibility with asphalt is poor, so it is difficult to achieve satisfactory technical improvement effect
"Performance of Low-temperature Plasma Activation of Rubber Powder Modified Asphalt" published in "Journal of Environmental Engineering" 2017, Volume 11, Issue 2, used low-temperature plasm

Method used

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Embodiment Construction

[0014] An activated waste rubber powder modified asphalt material, the modified asphalt material is extracted from 100 parts of petroleum asphalt, 5 parts of activated waste rubber powder, 2 parts of activated palygorskite, 0.1 part of benzaldehyde and 1 part of furfural.

[0015] The activated waste rubber powder is prepared by the following method: put 50 mesh waste rubber powder and treatment solution 1 into the reaction container according to the volume ratio of 1:1, stir evenly, and then stir and process at 40°C for 2 hours, and filter after the reaction , washed twice with water, drained, and then mixed with treatment solution 2 at a volume ratio of 1:0.001, stirred for 20 minutes, and sent to an oven after the treatment, and dried until the water content was ≤5%.

[0016] Wherein the treatment solution 1 is prepared by the concentration of 30% hydrogen peroxide, potassium ferrate, and water according to the weight of 0.1:0.1:1; the treatment solution 2 is prepared by sil...

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Abstract

The invention discloses an activated waste rubber powder modified asphalt material. Firstly, a hydrogen peroxide/potassium ferrate complex oxidizing system is used for performing oxidation treatment on waste rubber powder, so that a large number of active groups are exposed at the surface thereof; then, silane coupling agent hydrolysate is used for performing modification treatment on the waste rubber powder; an efficient activity effect is achieved, so that the compatibility of the obtained waste rubber powder and the substrate asphalt is better; the performance of the composite asphalt material is improved; in addition, activated palygorskite can improve the temperature resistant performance and the anti-aging performance of the composite asphalt material; waste gas in the production process can also be adsorbed; the dirt is reduced; under the crosslinking catalysis effect of benzaldehyde, the ductility of the composite material is effectively improved; the waste gas release quantity is further controlled; the prepared modified asphalt material has excellent performance and environment-friendly effect; the economic values are high.

Description

technical field [0001] The invention relates to the technical field of asphalt materials, in particular to an activated waste rubber powder modified asphalt material. Background technique [0002] my country is a big country in tire production and automobiles. With the rapid increase of family car ownership, a large number of waste tires are produced every year. How to effectively recycle these waste tires and prevent environmental pollution has very important practical significance and huge economic value. . At present, the more common waste tire recycling methods mainly include direct utilization of prototypes, incineration to generate heat, retreading of old tires, production of recycled rubber, and production of vulcanized rubber powder. Among them, the production of rubber powder from waste tires is a combination of environmental protection and resource recycling. A promising recycling method is also the best form of utilization that we advocate for the development of a...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L21/00C08K9/02C08K3/34
Inventor 王新志张凯郑海迪
Owner 安徽圣源橡塑科技有限公司
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