Method for preparing rubber powder-supported pavement automobile exhaust degrading composite

A technology for automobile exhaust and composite materials is applied in the field of preparation of rubber powder-loaded road automobile exhaust degrading composite materials, which can solve the problems of low quality of titanium dioxide, unfavorable photocatalytic degradation, and sufficient contact reaction of catalysts, and improve the photocatalytic degradation efficiency. Effect

CN101703889AInactive Publication Date: 2010-05-12FUJIAN XINHAIWAN BUILDING MATERIALS TECH
2 Cites 20 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2010-05-12
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention relates to a method for preparing a rubber powder-supported pavement automobile exhaust degrading composite, which is a method for compounding rubber powder, titanium oxide powder having a photocatalysis function and a coupling agent. Due to a characteristic of huge specific surface area, the rubber powder can be used to absorb and carry the titanium oxide powder to a maximum degree and fully absorb and collect automobile exhaust over pavements. Therefore, the method has the advantages that: the photocatalysis function of the titanium oxide is effectively protected and fully used and the efficiency of the pavement automobile exhaust degradation of the titanium oxide is improved; meanwhile, due to the high elasticity of the rubber powder and the action of the coupling agent, corresponding products have high wheel rolling resistance and rain washing resistance and the service life of the photocatalysis is prolonged. The composite can be used on surfaces of traffic facilities needing automobile exhaust degradation, such as asphalt concrete and cement concrete pavements, tunnels and culverts.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a preparation method of a rubber powder-loaded road vehicle tail gas degradation composite material, which belongs to the field of road traffic environment treatment. Background technique

[0002] Due to the high-rise buildings on both sides of the urban roads and the low horizontal velocity of the air, a large amount of vehicle exhaust gathers in the space above the urban roads, which is difficult to dilute or degrade, posing a threat to the health of pedestrians and surrounding residents. Although the country has promulgated the relevant vehicle exhaust emission standards, at present, with the rapid increase in the number of vehicles, the large amount of vehicle exhaust pollution is further deteriorating the urban air quality.

[0003] The accumulation of automobile exhaust in the urban road environment, on the one hand, seriously endangers the health of citizens, and on the other hand, it also provides the best opportunity f...

Examples

Embodiment Construction

[0018] The road vehicle exhaust gas degradation composite material of the present invention comprises rubber powder, titanium dioxide powder, coupling agent and diluent. The titanium dioxide powder has a photocatalytic function. According to the relationship between the photocatalytic degradation efficiency of the titanium dioxide powder and the particle size, the particle size of the titanium dioxide powder can be selected from 10 nm to 1 μm; according to the roughness of the actual road surface, the particle size of the rubber powder can be selected from 20 to 1 μm. 120 mesh; the coupling agent is one or a mixture of silicon, titanium, aluminum, chromium, zirconium, zinc, and calcium; diluents include water, ethanol, isopropanol, engine oil, One or more of white oil and solvent oil.

[0019] The designed pavement automobile exhaust degradation composite material of the present invention is mainly based on titanium dioxide powder and rubber powder (the consumption on the road...