Aller sur edunet
Accueil
Détail de l'auteur
Auteur S. Chandra
Commentaire :
Department of Mechanical and Industrial Engineering, University of Toronto
|
Documents disponibles écrits par cet auteur
Ajouter le résultat dans votre panier Affiner la rechercheChlorinated butyl acrylate - methyl methacrylate copolymer : A novel film former / S. Bhandari in PAINTINDIA, Vol. XLV, N° 6 (06/1995)
Titre : Chlorinated butyl acrylate - methyl methacrylate copolymer : A novel film former Type de document : texte imprimé Auteurs : S. Bhandari, Auteur ; S. Chandra, Auteur Année de publication : 1995 Article en page(s) : p. 27-32 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Peinture Liant 'Copolymère acrylate de butyle' 'Polymétacrylate méthyle' Chloration chlore' 'Stabilité thermique' 'Propriété mécanique' Feuil chimique' 'Résistance feu' 'Etude expérimentale' Index. décimale : 667.9 Revêtements et enduits Résumé : Maximum 25.6 per cent chlorine content could be achieved during the chlorination of butyl acrylate - methyl methacrylate copolymer. Infrared analysis revealed that chlorine enters only in the main chain by the substitution reaction. The thermal stability was found increasing with the chlorine content. Chlorinated copolymer possessed superior film properties as compared those of the unchlorinated except in terms of flexibility and adhesion. The property of resistance to fire was also introduced in the copolymer on chlorination. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of Poly (butyl acrylate) - Chlorination of Poly (butyl acrylate) - Synthesis and chlorination of butyl acrylate - methyl methacrylate copolymer - Infrared analysis - Determination of thermal stability - Mechanical and chemical film properties - Test for fire resistance
- RESULTS AND DISCUSSION : Viscosity and solubility - Substitution of chlorine - Thermal stability - Flexibility and adhesion - Impact resistance - Scratch hardness - Water, acid and alkali resistance - Fire resistancePermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13643
in PAINTINDIA > Vol. XLV, N° 6 (06/1995) . - p. 27-32[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 006452 - Périodique Bibliothèque principale Documentaires Disponible
Titre : Classification of coatings Type de document : texte imprimé Auteurs : S. Chandra, Auteur Année de publication : 1999 Article en page(s) : p. 69-72 Langues : Anglais (eng) Tags : 'Matériau revêtement' Peinture Classification Index. décimale : 667.9 Revêtements et enduits Résumé : That PAINTINDIA is most popular among all concerned with the paint industry in the country in one way or the other is well known. But not so well known is that it is very popular among students of surface coating technology throughout the country. There is a substantial circulation among the student community which finds PAINTINDIA most educative and helpful in their studies and their endeavour to obtain a thorough grasp of all the technological aspects of paints. To PAINTINDIA this student readership is most valuable since these students are the future managers of paint units as the industry expands. It is in this background, the background of the student readership, that this article assumes significance since nowhere in the literature such a compilation on the topic is auailable. It is for this reason that no list of references accompanies this article. The author of this article has spent a lifetime in teaching paint technology and the article reflects his vast experience. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12922
in PAINTINDIA > Vol. XLIX, N° 1, Su (01/1999) . - p. 69-72[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 006497 - Périodique Bibliothèque principale Documentaires Disponible 
Titre : Coating the inner surfaces of pipes with high-viscosity epoxy in annular flow Type de document : texte imprimé Auteurs : E. Lin, Auteur ; H. B. Parizi, Auteur ; A. Pourmousa, Auteur ; S. Chandra, Auteur ; Javad Mostaghimi, Auteur Année de publication : 2011 Article en page(s) : p. 697-706 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Ecoulement annulaire
Epoxydes
Revêtements:Peinture
Simulation par ordinateurIndex. décimale : 667.9 Revêtements et enduits Résumé : Applying a thin, protective coating of a nontoxic, chemically resistant epoxy to the interior of existing pipes is an alternative method to pipe replacement. In order to find the controlling parameters in this method, in this study, viscous epoxy was propelled by compressed air through clear polyvinyl chloride (PVC) pipes. Epoxy flow was annular, and it hardened to form a thin, uniform coating on the inner pipe surface. A video camera was employed to record fluid motion, and the thickness of the coating was measured using an image analysis program named ImagJ. Tests were done with varying air temperature, airflow rate, piping configuration, and epoxy temperature. A one-dimensional numerical algorithm was developed to model fluid flow, heat transfer, and epoxy curing. Heating the epoxy makes it move faster because liquid viscosity decreases with increasing temperature. The coating was significantly thicker at the bottom of a horizontal pipe than at the top due to sagging of the epoxy coating after it had been applied, resulting in flow from the top to the bottom of the pipe. Sagging could be reduced by maintaining airflow until curing was almost complete and the epoxy had hardened enough to prevent it from moving easily. The combination of the experimental results and numerical modeling showed that the most important parameters controlling the speed of the epoxy and coating thickness were the air flow rate and temperature, since they determine the shear forces on the epoxy layer and the rate at which the epoxy cures. Raising air temperature increases the reaction rate and therefore decreases the time required for the epoxy to cure inside the pipe. The results of the simulation showed a very good agreement with the experimental results in pipes with 1-in diameter or less. DOI : 10.1007/s11998-011-9361-y En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-011-9361-y.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12596
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 8, N° 6 (11/2011) . - p. 697-706[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 13484 - Périodique Bibliothèque principale Documentaires Disponible
Titre : Colour Type de document : texte imprimé Auteurs : Pranjal Pandey, Auteur ; Pramod Kumar, Auteur ; S. Chandra, Auteur Année de publication : 2000 Article en page(s) : p. 47-65 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : The importance of measurement of colour quantitatively and comparison for matching of shades of the paint films is very well recognized in paint industry. Colour matching and colour formulation by sophisticated computer gas, in fact, revolutionised the paint manufacturing and application industries acrros the world. In the present article, various theoretical and practical aspects behind appearance of colour in chemical compounds have been presented. Quantification of colour has been discussed in three dimensions, viz. Hue, value and chroma in different colour systems, such as Munsell, CIE and ostwald. Colour comparison made by spectrophotometric methods has also been analysed. Colour difference measurement, shade matching and colour formulation by using sophisticated computer softwre have been elaborated in this article. Note de contenu : - Light primaries
- Colour mixing
- Colour chemistry
- Colour and physical structure
- Human colour vision
- Light sources
- Three dimensions (attributes) of colour
- Colour quantification
- Colour difference measurement
- Colour computer matching
Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12656
in PAINTINDIA > N° annuel 2000 (2000) . - p. 47-65[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 001247 - Périodique Bibliothèque principale Documentaires Disponible
Titre : Environmental pollution and its abatement by paint industry Type de document : texte imprimé Auteurs : Ashish Ahuja, Auteur ; Pramod Kumar, Auteur ; S. Chandra, Auteur Année de publication : 2001 Article en page(s) : p. 55-66 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Industrie peinture vernis' 'Pollution air' 'Prévention pollution' 'Composé organique volatil' Solvant Peinturage automobile' 'Epuration effluent gazeux' Index. décimale : 667.9 Revêtements et enduits Résumé : It is a paradox of the day that almost every development accompanies degradation of nature. In the quest for wealth and comfort, man has ignored natural laws and thus has disturbed a number of natural cycles, resulting in environmental pollution and health hazards. Environmental degradation is linked with industrialization. Surface coating industries, being a specific case of raw material intensive industries use a large number of ingredients, whose harmful effect on man and environment are not spelt out in unambiguous terms. To maintain the ecological balance, adequate steps are being taken now to reduce the huge amount of emission of volatile organic compounds (VOC), used as solvents/ thinners by paint industries, which, otherwise, can pollute the neighboring environment significantly. In the present paper, control on VOC content using different methods has been discussed. Adoption of new coating technologies such as water borne coatings, high solids coatings, powder coatings, radiation curable coatings and electrodeposition coatings reduces the VOC emission to a great extent. Therefore, these coatings along with their limitations have been discussed precisely. Automotive paintshops apply huge quantities of paint, and hence they have a greater environmental impact. Assessment of the harmful effects of paintshop operations and the ways to overcome these effects has also been discussed specifically in this article. Note de contenu : - What is VOC? : Damages caused by VOC
- VOC determination
- VOCs from coatings and coating industries
- Legislation on solvent emissions
- Methods of controlling environmental pollution : - Incineration – Thermal incineration – Catalytic incineration – Adsorption – Reduction in the amount of painting – Reduction of waste by flocculation or ultrafiltration – Condensation – Use of supercritical fluids – Improving transfer efficiency – Eco-friendly paint removal systems – Adsorption – Membrane gas separation – Biological treatment
- Modern coating technologies to control environmental pollution : Water-borne coatings – High solids coatings – Powder coatings – Radiation curable coatings – UV (Ultraviolet) cured coatings – EB (electron beam) cured coatings – Electrodeposition coatings
- Environmental impact of automobile paintshop operations : Phosphate pretreatment – Electropainting – Top coat application – Paint stoving – Good housekeepingPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12578
in PAINTINDIA > Vol. LI, N° 4 (04/2001) . - p. 55-66[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 001265 - Périodique Bibliothèque principale Documentaires Disponible
Permalink
Permalink
PermalinkPermalinkPermalinkPermalinkPermalink
Permalink
