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Road guardrail coating capable of effectively purifying automobile exhaust gas and preparation method thereof

A technology for automobile exhaust and highway guardrails, which is applied in the direction of coating, etc., can solve the problems of ineffective purification of automobile exhaust and slow air flow on road surfaces

Active Publication Date: 2019-09-27
丁国铭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of paint is usually applied in indoor environment, and the air flow is relatively slow. For the road environment with particularly fast air flow, the negative ions released in the paint are easy to diffuse to other environments with the wind, and there is a problem that it cannot effectively purify the road surface and its environment. Defects in the presence of a large number of vehicle exhausts in the surrounding environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A road guardrail paint for effectively purifying automobile exhaust, comprising: 70 parts of acrylic emulsion, 5 parts of curing agent, 2 parts of leveling agent, 30 parts of luminescent agent, 20 parts of paint additive, 10 parts of film-forming aid, characterized in that The paint additive is nanometer titanium dioxide modified microporous shell powder gel particles.

[0022] The preparation method of nano titanium dioxide-micron porous shell powder gel particle is as follows,

[0023] 1. Preparation of microporous shell powder sol

[0024] (1) Preparation of primary shell powder: Grind and fully grind the shells, pass through a 300-mesh sieve to obtain micron-sized shell powder, and then calcinate at 300°C for 20 minutes in an aerobic environment to remove the shell powder Shell quality, the preparation primary shell powder is standby;

[0025] (2) Wet milling: Wet mill the primary shell powder prepared in step (1), and mill it in a ball mill tank for 1 hour, where...

Embodiment 2

[0034] A road guardrail coating for effectively purifying automobile exhaust, comprising: 60 parts of acrylic emulsion, 4 parts of curing agent, 2 parts of leveling agent, 20 parts of luminescent agent, 15 parts of coating additive, and 5 parts of film-forming aid, characterized in that The paint additive is nanometer titanium dioxide modified microporous shell powder gel particles.

[0035] The preparation method of nano titanium dioxide-micron porous shell powder gel particle is as follows,

[0036] 1. Preparation of microporous shell powder sol

[0037] (1) Preparation of primary shell powder: Grind and fully grind the shells, pass through a 300-mesh sieve to obtain micron-sized shell powder, and then calcinate at 400°C for 10 minutes in an aerobic environment to remove the shell powder Shell quality, the preparation primary shell powder is standby;

[0038] (2) Wet milling: Wet mill the primary shell powder prepared in step (1), and mill it in a ball mill tank for 1 hour...

Embodiment 3

[0047] A road guardrail coating for effectively purifying automobile exhaust, comprising: 50 parts of acrylic emulsion, 3 parts of curing agent, 1 part of leveling agent, 15 parts of luminescent agent, 10 parts of paint additive, and 1 part of film-forming aid, characterized in that The paint additive is nanometer titanium dioxide modified microporous shell powder gel particles.

[0048] The preparation method of nano titanium dioxide-micron porous shell powder gel particle is as follows,

[0049] 1. Preparation of microporous shell powder sol

[0050] (1) Preparation of primary shell powder: Grind and fully grind the shells, pass through a 300-mesh sieve to obtain micron-sized shell powder, and then calcinate at 450°C for 5 minutes in an aerobic environment to remove the shell powder Shell quality, the preparation primary shell powder is standby;

[0051] (2) Wet milling: Wet mill the primary shell powder prepared in step (1), and mill it in a ball mill tank for 1 hour, whe...

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Abstract

The invention belongs to the technical field of road materials, and particularly discloses a road guardrail coating capable of effectively purifying automobile exhaust gas. By using waste shells as raw materials, micron-sized porous shell powder sol is obtained by calcination, micro-etching and dispersion; by combining nanometer titanium dioxide, nanometer titanium dioxide modified micron-sized porous shell powder gel particles are obtained. The surface-adsorbed nanometer titanium dioxide has a photocatalytic effect, and is also commonly used as nanometer negative ion powder in coatings; the internal micron-sized porous shell powder has good adsorption. The road guardrail coating with the nanometer titanium dioxide and the micron-sized porous shell powder gel particles not only has the good photocatalytic effect, but also can degrade organic matter adsorbed on the surface of the coating; at the same time, the surface of the coating has an adsorption effect on the pollutants in the air, so that the air pollutants are concentrated in the radiation range of the nanometer negative ions, and thus the purification effect of the nanometer negative ion powder in the coating on the air is increased.

Description

technical field [0001] The invention belongs to the technical field of road materials, and relates to the field of road guardrail paint, in particular to a road guardrail paint that can assist in purifying automobile exhaust. Background technique [0002] Vehicles driving on the road continue to emit a large amount of exhaust gas. The main components of these vehicle exhaust gases are solid suspended particles, carbon monoxide, hydrocarbons, nitrogen oxides, sulfur dioxide, etc., which are all pollutants and seriously affect the human living environment. air quality in . [0003] In order to purify automobile exhaust, three-way catalytic converters are usually installed on automobiles, which can purify carbon monoxide, hydrocarbons, and nitrogen oxides in automobile exhaust. The three-way catalytic converter is mainly used for its catalytic function. The catalyst usually uses precious metals such as platinum, rhodium, and palladium, and uses alumina asbestos fiber felt as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D7/62C09D7/61
CPCC08K2003/2241C08K2003/265C08K2201/011C09D7/61C09D7/62C09D7/70C09D133/04C08K7/24C08K9/02C08K3/22C08K9/12C08K3/26
Inventor 石庆国刘文江孙大志
Owner 丁国铭
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