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Synthesis, properties & applications of polyaniline especially in surface coatings / Dilip Patil in PAINTINDIA, Vol. LXVIII, N° 2 (02/2018)
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Titre : Synthesis, properties & applications of polyaniline especially in surface coatings Type de document : texte imprimé Auteurs : Dilip Patil, Auteur ; Naik Divyeshkumar, Auteur Année de publication : 2018 Article en page(s) : p. 55-82 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anticorrosion
Capteurs (technologie)
Conducteurs organiques
Diodes électroluminescentes
Métathèse (chimie)
Polyaniline
Polymères -- Applications industrielles
Polymères -- Synthèse
Polymérisation
Revêtements antisalissures:Peinture antisalissuresIndex. décimale : 667.9 Revêtements et enduits Résumé : The present paper reviews conducting polymer specially polyaniline, its mechanism, different methods of synthesis, properties and different applications in various fields. Polyaniline polymer has generated interest because of its very good electrical conductivity combined with other beneficial properties such as light weight and low cost. Polyaniline (PANI) can be used in the form of powder as well as thin films. lt is extensively investigated by researchers, because of its wide field of applications like, light emitting diodes, transparent electrodes, electromagnetic radiation shielding, corrosion protection of metals, gas and humidity sensing, battery applications and many more. Note de contenu : - CONDUCTING POLYMER : History of conducting polymer - Types of conducting polymers
- POLYANILINE
- DIFFERENT METHODS FOR THE SYNTHESIS OF POLYANILINE : Electrochemical synthesis of polyaniline - Mechanism of polymerisation - Step 1 : Oxidation of monomer - Step 2 : Radical coupling and re-aromatisation - Step 3 : Chain propagation for electrochemical synthesis - Step 4 : Oxidation and doping of the polymer for electrochemical synthesis - Step 5 : Chain propagation for chemical synthesis - Step 6 : Reduction of the pernigraniline salt to emeraldine of aniline - Suspension > microsuspension > miniemulsion > microemulsion - Seeding polymerization of aniline - Sonochemical synthesis of polyaniline - Template synthesis of polyaniline - Enzymatic synthesis of polyaniline - Photo-induced polymerization of aniline - Plasma polymerization
- PROPERTIES OF POLYANILINE : Conductivity properties of PANI
- APPLICATIONS OF POLYANILINE AND ITS COMPOSITES : As corrosion-prevention agent - PANI/alkyd coating - Corrosion rate of analysis of PANI/alkyd coatings - Salt mist test - Open circuit potential measurements - Mechanism of corrosion protection
- AS MARINE ANTIFOULING AGENT : Synergetic marine antifouling behaviour
- CONDUCTIVE ADHESIVE, INK, PAINT, ANTI-STATIC TEXTILE AND ESD
- ELECTRORHEOLOGICAL FLUIDS (ER) MATERIALS : Sensors
- ACID-BASE INDICATOR
- MEMBRANE FOR GAS SEPARATION, NEUTRAL SOLUTE SEPARATIONS AND PH SWITCH ACTUATOR
- CAPACITOR AND ENERGY STORAGE DEVICE
: Digital memory device
- RECHARGEABLE BATTERY
- PHOTOVOLTAIC CELLS (SOLAR CELLS)
- TABLES : 1. The droplet size of a range of heterophase polymerisation system - 2. Physico-mechanical characteristics of PANI/alkyd coatings - 3. The extra fuel loss under different fouling percent - 4. Antifouling behaviour of various polyaniline coating - 5. Change of electrical conductivity of droped polyanilines in marine environmentEn ligne : https://drive.google.com/file/d/1QoQtEv0f0c_XualWLUT13ROy1jcsN7Pe/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30342
in PAINTINDIA > Vol. LXVIII, N° 2 (02/2018) . - p. 55-82[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19765 - Périodique Bibliothèque principale Documentaires Disponible Usage of heavy metal-free compounds in surface coatings / Dayanand Puthran in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 1 (01/2023)
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Titre : Usage of heavy metal-free compounds in surface coatings Type de document : texte imprimé Auteurs : Dayanand Puthran, Auteur ; Dilip Patil, Auteur Année de publication : 2023 Article en page(s) : p. 87-112 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antimoine
Arsenic
cadmiumLe cadmium est un élément chimique de symbole Cd et de numéro atomique 48.
Le cadmium est un métal blanc argenté ayant des propriétés physiques proches de celle du zinc. Il fond à 320,9 °C et bout à 767 °C. Lors de l'ébullition du cadmium, il se dégage des vapeurs jaunes toxiques.
Sa masse spécifique est de 8 650 kg/m³.
Il est ductile (capacité à l’étirement), malléable (capacité à la mise en forme) et résiste à la corrosion atmosphérique, ce qui en fait un revêtement de protection pour les métaux ferreux.
Les propriétés chimiques du cadmium sont semblables à celles du zinc. L'ion cadmium est déplacé par le zinc métallique en solution : il est moins réactif que le zinc.
Il s'oxyde très peu à température ambiante et brûle dans l'air en donnant l'oxyde anhydre CdO, insoluble dans un excès d'hydroxyde de sodium.
Il réagit avec les acides et les bases. Le cadmium est soluble dans l'acide nitrique dilué et dans les acides chlorhydrique et sulfurique concentrés et chauds.
La masse molaire atomique du Cadmium est de 112,4 g/mol.
Cancérogènes
Chimie analytique
Chromate de plomb
Chrome
Cobalt
Etain
Manganèse
Mélanges (chimie)
mercure
Métaux lourds -- Toxicologie
NickelLe nickel est un élément chimique, de symbole Ni et de numéro atomique 28.
Le nickel est un métal blanc argenté qui possède un éclat poli. Il fait partie du groupe du fer. C'est un métal ductile (malléable). On le trouve sous forme combinée au soufre dans la millérite, à l'arsenic dans la nickéline.
Grâce à sa résistance à l'oxydation et à la corrosion, il est utilisé dans les pièces de monnaie, pour le plaquage du fer, du cuivre, du laiton, dans certaines combinaisons chimiques et dans certains alliages. Il est ferromagnétique, et est fréquemment accompagné de cobalt. Il est particulièrement apprécié pour les alliages qu'il forme.
Peinture -- Toxicologie
Pigments inorganiques
Pigments organiques
Plomb
Produits chimiques -- Détection
Réticulants
Revêtements (produits chimiques):Peinture (produits chimiques)
Risques pour la santé
Spectroscopie des rayons X
Substances dangereusesIndex. décimale : 667.9 Revêtements et enduits Résumé : Coatings have been used since time immemorial for decorative and protective purposes. During the initial periods, when not much information was available regarding the health impact of the raw materials, there was no thought given or restrictions put on use of any ingredients in coatings. Some of the raw materials like white lead (lead carbonate), red lead (lead oxide), hexavalent chromium compounds, and other similar compounds were being used in large quantities to get specific paint film properties. This not only affected human health but also with no effective effluent treatment contaminated soil and water resources. With progress in technology and diagnostics, lead and chromium compounds have been identified as carcinogens. The developed countries (Europe and USA) were the first to ban the use of lead in their products in the 1970s and 1980s, but due to mainly economic reasons, these are still being used in the developing countries. As the long-term health impact is too much to bear, regulations/legislations have been enacted by the governments restricting use of lead/chrome in paints. The Global Alliance to Eliminate Lead Paint (GAELP), a joint association formed under the United Nations Environment programme, and World Health Organization have agreed to phase out manufacture and sale of paints containing lead by 2020. Similar restrictions exist for many other compounds used in coatings. The article attempts to present a synopsis of the history of coatings composition, impact of the heavy metals on health and environment, and the options available for shifting to safer coating composition. As major focus of the world is on lead elimination, it has been covered in more detail, but the article also provides information on other metals, namely cadmium, chromium, mercury, arsenic, antimony, tin, nickel, manganese, cobalt, etc., and their current status. Note de contenu : - LEAD : Introduction - Challenges in lead-free paint development - Approaches for lead-free paint development
- CADMIUM : Introduction - Cadmium uses today - Cadmium in paints - Health impacts of cadmium - Regulations on use of cadmium in paints - Approaches for cadmium-free paint development
- CHROMIUM : Introduction - Chromium uses today - Chromium in paints - Health impacts of chromium - Challenges in chromium-free developments in paints - Approaches for chromium-free paint development
- MERCURY : Introduction - Mercury uses today - Mercury in paints - Health impacts of mercury - Approaches for mercury-free paint development
- ARSENIC : Introduction - Arsenic uses today - Arsenic in paints - Health impacts of arsenic - Approaches for arsenic-free paint development
- ANTIMONY : Introduction - Antimony uses today - Antimony in paints - Health impacts of antimony - Approaches for antimony-free paint development
- TIN : Introduction - Tin uses today - Tin in paints - Health impacts of tin - Regulations on use of tin in paints - Approaches for tin-free paint development
- NICKEL : Introduction - Nickel uses today - Nickel in paints - Health impacts of nickel - Approaches for nickel-free paint development
- MANGANESE : Introduction - Manganese uses today - Manganese in paints - Health impacts of manganese - Approaches for manganese-free paint development
- COBALT : Introduction - Cobalt uses today - Cobalt in paints - Health impacts of cobalt - Approaches for cobalt-free paint development
- OTHER METAL ELEMENTS : ZIRCONIUM (Zr), TITANIUM (Ti) and ZINC (Zn) :
- TESTING METHODS FOR DETECTION OF HEAVY METAL ELEMENTS IN PAINTS : Chemical tests kits - X-ray fluorescence (XRF) analysis - Laboratory-based analytical techniquesDOI : https://doi.org/10.1007/s11998-022-00648-4 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00648-4.pdf?pdf=button% [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38831
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 1 (01/2023) . - p. 87-112[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23928 - Périodique Bibliothèque principale Documentaires Disponible