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Development of thermoplastic material as a substitute to road marking paint / S. M Sarin in PAINTINDIA, Vol. LII, N° 9 (09/2002)
[article]
Titre : Development of thermoplastic material as a substitute to road marking paint Type de document : texte imprimé Auteurs : S. M Sarin, Auteur ; A. Singh, Auteur ; Anuradha Shukla, Auteur ; Surinder Mohan, Auteur Année de publication : 2002 Article en page(s) : p. 39-50 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Coût Performance Thermogravimétrie 'Propriété chimique' optique' rhéologique' physique' Thermoplastique Liant Formulation 'Signalisation routière' Peinture 'Matériau revêtement' Index. décimale : 667.9 Revêtements et enduits Résumé : Traffic management measures are required in the wake of increased pressure on the road system in order to move the road traffic with safety and efficiency. Traffic control devices are important and effective tools to achieve the goals of traffic management. Road markings are one of such important traffic control devices, which have widely been used all over the world. The short service life of conventional road marking paints (in use in India) require frequent repainting which lead to disruption of traffic and escalation in the maintenance cost. Thus a need was felt to develop indigenously durable and cost effective substitute to the conventional road marking paint. Out of 100 test formulations of various binders, aggregates, fillers and glass beads 10 formulations were selected for first field trial on Mathura Road, New Delhi. The road surface characteristics were evaluated before application. The formulations of promising marking materials were laid at application temperature range of 200°-220°C at a uniform thickness of 3mm, using screed box developed at Central Road Research Institute. After initial field trials on Mathura Road, New Delhi three successful formulations were subjected to exhaustive field trials at other sites in Delhi, Pune and Bombay. Various physical and chemical properties of successful formulations were evaluated to ascertain useful service life of the markings under different traffic and climatic conditions. The service cost of successful thermoplastic formulations varied from 2. 74 paise to 3.68 paise per day useful service life against 5. 92 paise per day useful service life for conventional road marking paints. The recommended formulation with and without glass beads was respectively found to be 1.7 and 2.2 times cheaper than the conventional road marking paint, with a service life of at least 3 years. Note de contenu : - DEVELOPMENT OF THERMOPLASTIC MATERIAL
- CHARACTERISTICS PF SUCCESSFUL THERMOPLASTIC FORMULATIONS - Physical properties - Chemical characteristics - I-R analysis - Durability performance characteristics
- COST COMPARISON IN TERMS OF USEFUL LIFE - Cost of raw materials - Cost comparisons of thermoplastic material and road marking paints
- RECOMMENDED FORMULATIONPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12409
in PAINTINDIA > Vol. LII, N° 9 (09/2002) . - p. 39-50[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 001285 - Périodique Bibliothèque principale Documentaires Disponible Synthesis and characterisation of benzothiazole-based solid-state fluorescent azo dyes / Ganapati S. Shankarling in COLORATION TECHNOLOGY, Vol. 126, N° 6 (2010)
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Titre : Synthesis and characterisation of benzothiazole-based solid-state fluorescent azo dyes Type de document : texte imprimé Auteurs : Ganapati S. Shankarling, Auteur ; Rajkumar N. Rajule, Auteur ; Yogesh A. Sonawane, Auteur ; Prakhar P. Kasture, Auteur Année de publication : 2010 Article en page(s) : p. 348-352 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Benzothiazoles
Caractérisation
Chimie analytique
Chimie textile
Colorants
Colorants -- Synthèse
Fibres polyesters
Solubilité
Solvants organiques
Teinture -- Fibres textilesTags : 'Teintures azotées fluorescentes à semi-conducteur' 'Solvant organique' Colorant Caractérisation Solubilité 'Coefficient d'extinction molaire' Dichlorométhane Chloroforme Diméthylformamide Tétrahydrofurane 'Sulfoxyde diméthylique' Polyester 'Teinture de dispersion' Thermogravimétrie 'Résonance magnétique proton' 'Spectrométrie masse' Stabilité thermique Index. décimale : 667.3 Teinture et impression des tissus Résumé : Novel solid-state fluorescent azo dyes containing a 2-[4-(dimethylamino)phenyl]benzo[d]thiazol-6-amine as the electron donor group were synthesised. These dyes showed a molar extinction coefficient in the range of 20 000–30 000 l/mol/cm. These compounds were characterised by strong solid-state fluorescence under long ultraviolet light (365 nm). Absorption and fluorescence spectra revealed that electron coupling originating from broad π-electron delocalisation and the keto–enol form is responsible for the large Stokes shift. These dyes were readily soluble in common solvents such as dichloromethane, chloroform, dimethyl formamide, tetrahydrofuran and dimethyl sulphoxide and were characterised by means of elemental analysis, proton nuclear magnetic resonance and mass spectrometry. Thermogravimetric analysis of solid-state fluorescent dyes show thermal stability up to 270 °C and can therefore be used for polymer application. The coloristic properties of these dyes were evaluated on polyester by the disperse dyeing method. DOI : 10.1111/j.1478-4408.2010.00268.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2010.00268.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10246
in COLORATION TECHNOLOGY > Vol. 126, N° 6 (2010) . - p. 348-352[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012590 - Périodique Bibliothèque principale Documentaires Disponible