Road guardrail plastic masterbatch for purifying automobile exhaust and preparation method thereof

A technology of automobile exhaust and plastic masterbatch, applied in the field of plastic masterbatch, can solve the problems of unsatisfactory efficiency, affecting purification efficiency, insufficient adsorption, etc., achieve good photocatalytic activity and visible light utilization rate, excellent purification effect, and significant purification effect Effect

Inactive Publication Date: 2019-09-03
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen that when using photocatalytic technology to purify automobile exhaust in the prior art, there are shortcomings such as photocatalytic activity, insufficient adsorption, and unsatisfactory efficiency. In addition, graphi

Method used

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  • Road guardrail plastic masterbatch for purifying automobile exhaust and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1

[0024] Mix 97kg of monocyanoamine with 3kg of nano-calcium carbonate, grind for 34min at a speed of 260r / min, then move it into a tube furnace, heat it to 500°C under argon, and keep it for 2h, then continue grinding the product After 48 minutes, first wash with 13% hydrochloric acid by mass concentration for 3 times, then wash with distilled water 3 times, and dry to obtain nano-scale porous graphite phase carbon nitride; then 17kg porous graphite phase carbon nitride and 8kg titanium Add tetrabutyl ester to 34g absolute ethanol, stir vigorously at 500~600r / min for 30~40min to obtain solution A; then immerse 27kg graphene aerogel in solution A, and add 11kg nitric acid / absolute ethanol Mixed solution, nitric acid / anhydrous ethanol mixed solution, the volume ratio of nitric acid with a mass concentration of 15% to anhydrous ethanol is 7:93, continue stirring at 360r / min until a sol is formed; then slowly add 3kg to the sol Sodium borohydride, continue to stir ...

Example Embodiment

[0028] Example 2

[0029] Mix 96kg of dicyanoamine and 4kg of nano calcium carbonate, grind at 220r / min for 38min, then move it into a tube furnace, heat to 400℃ in an argon atmosphere, keep it for 3h, then continue grinding the product After 45min, first wash 4 times with hydrochloric acid with a mass concentration of 12%, then wash 2 times with distilled water, and dry to obtain nano-scale porous graphite phase carbon nitride; then 16kg porous graphite phase carbon nitride and 7kg titanium Add tetrabutyl ester to 38kg of absolute ethanol and stir vigorously at 520r / min for 38min to obtain solution A; then, 27kg of graphene aerogel is immersed in solution A, and 9kg of nitric acid / absolute ethanol mixed solution is added. In the mixed solution of absolute ethanol, the volume ratio of nitric acid with a mass concentration of 10% to absolute ethanol is 6:94. Continue stirring at 320r / min until a sol is formed; then slowly add 3kg sodium borohydride to the sol, Continue to stir un...

Example Embodiment

[0031] Example 3

[0032] Mix 98kg of melamine with 2kg of nano calcium carbonate, grind at 280r / min for 32min, then move it into a tube furnace, heat it to 500℃ for 2h in an argon atmosphere, and continue to grind the product for 55min. Then, first wash 4 times with 14% hydrochloric acid by mass concentration, then wash 3 times with distilled water, and dry to obtain nano-scale porous graphite phase carbon nitride; then 17kg porous graphite phase carbon nitride and 9kg tetrabutyl titanate The ester was added to 31kg of absolute ethanol and stirred vigorously at 580r / min for 32min to obtain solution A; then 28kg of graphene aerogel was immersed in solution A, and 11kg of nitric acid / anhydrous ethanol mixed solution, nitric acid / anhydrous In the ethanol mixed solution, the volume ratio of nitric acid with a mass concentration of 20% to anhydrous ethanol is 9:91, continue to stir at a speed of 380r / min until a sol is formed; then slowly add 4kg of sodium borohydride to the sol and ...

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Abstract

The invention belongs to the technical field of plastic masterbatches, and provides a road guardrail plastic masterbatch for purifying automobile exhaust and a preparation method thereof. According tothe method, a nitrogen-rich raw material is used to prepare nano-grade porous graphite phase carbon nitride, the nano-grade porous graphite phase carbon nitride, tetrabutyl titanate, graphene aerogel, a nitric acid/absolute ethyl alcohol mixed solution, sodium borohydride and absolute ethyl alcohol as raw materials are used to prepare graphene aerogel/titanium dioxide/graphite phase carbon nitride solid powder, and after being treated by a coupling agent, the graphene aerogel/titanium dioxide/graphite phase carbon nitride solid powder is mixed with linear low density polyethylene, polypropylene, polyvinyl chloride and an auxiliary agent for extrusion granulation to prepare the road guardrail plastic masterbatch for purifying the automobile exhaust. Compared with the traditional method, the prepared plastic masterbatch not only has good adsorption performance, but also has good photocatalytic activity and visible light utilization rate, and a road guardrail prepared by using the masterbatch has remarkable purification effect on the automobile exhaust.

Description

technical field [0001] The invention belongs to the technical field of plastic masterbatch, and provides a plastic masterbatch used for road guardrails to purify automobile exhaust and a preparation method thereof. Background technique [0002] With the rapid and high-speed development of our country's economy, the living standards of our people continue to improve, and the number of cars in our country has increased rapidly. Today's social cars have become an indispensable means of transportation. However, with the increase in the number of cars, car exhaust emissions have caused environmental pollution pollution is also becoming more and more serious. The main components of automobile exhaust are CO and NO x , SO 2 etc., which seriously endanger people's health and environmental quality. According to statistics, 60% of CO and 50% of NO in large cities in China x , 30% of hydrocarbons are caused by vehicle exhaust. At present, the main control methods for automobile ex...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/08C08L27/06C08L51/04C08L53/02C08L9/06C08K13/06C08K9/06C08K9/04C08K9/02C08K9/00C08K7/24C08K3/04C08K3/22C08K5/134
CPCC08K2003/2224C08K2003/2227C08K2003/265C08K2201/001C08K2201/011C08L23/0815C08L23/12C08L2205/035C08L27/06C08L51/04C08L53/02C08L9/06C08K13/06C08K9/06C08K9/04C08K9/02C08K9/00C08K7/24C08K3/042C08K5/1345C08K3/22
Inventor 陈庆昝航
Owner CHENDU NEW KELI CHEM SCI CO LTD
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