[article]
| Titre : |
Pollution control coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Ramkisan S. Tambare, Auteur ; Santosh C. Bhuva, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
p. 53-61 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Dioxyde de titane
Industrie -- Pollution -- Lutte contre
Industries chimiques -- Aspect de l'environnement
Photocatalyse
Pollution
Pollution -- Mesure
Revêtements:Peinture
SiliconesLes silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki).
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| Index. décimale : |
628.5 Pollution et hygiène industrielle |
| Résumé : |
Pollution is harmful term for environment as well as for animals & human beings. A variety of hazardous pollutants are discharged into the environment from several industrial operations, vehicle exhausts and domestic use. Pollutants cause disturbance, instability, disorder, harm or discomfort to the animals, humans or other living organisms. It is difficult to remove waste completely to control pollution. There are various options to control pollution. Pollution is controlled by waste control at source, control on emissions of hazardous pollutants & using protective equipments. Coating the surface with pollutants absorbing paint is another option to control pollutions. Sound proofing materials and coatings absorb exces sound in rooms, chambers or work places. Quiet work place releases the tension of working person & peacefully he/she would work efficiently. Coating containing the lime (calcium hydroxide) cures and hardens naturally by carbonation and without exhalation of toxic, hazardous gases. During the curing process, the lime slowly absorbs the carbon dioxide from the atmosphere and releases its water content. Polysiloxane base of the paint allows the nitrogen oxides to diffuse and convert it to nitric acid with the help of titanium dioxide. Heterogeneous photocatalysis is an advanced oxidation technology for NOx removal from vehicle emissions by using TiO2 as a photocatalyst. Coating of iron nano particles neutralize dense, hydrohobic solvents which polluting the ground water. In photocatalytic reaction organic pollutants oxidizes into CO2 and water to disinfect bacteria in water presence of UV light. |
| Note de contenu : |
- TYPES OF POLLUTIONS & ITS SOURCES
- SOUND POLLUTION
- WATER POLLUTION
- EFFECT OF POLLUTIONS
- METHODS TO POLLUTION CONTROL : Noise pollution control - Noise control at generation - Sound proofing barrier materials & coatings - Use of protective equipment - Water pollution control methods - Deionization - Reverse osmosis - Physical, chemical and biological processes - Pollutant absorbing coating - Air pollution control methods - Control of particulate matters emission - Control of VOCs and gaseous emissions - Mechanism |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=14732 |
in PAINTINDIA > Vol. LXII, N° 3 (03/2012) . - p. 53-61
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Pollution control coatings in PAINTINDIA, Vol. LXII, N° 3 (03/2012)
