Acrylic polyols and their applications / P. Kabra Ashwini in PAINTINDIA, Vol. LVIII, N° 5 (05/2008)

[article]  inPAINTINDIA > Vol. LVIII, N° 5 (05/2008) . - p. 85-96 Titre : Acrylic polyols and their applications Type de document : texte imprimé Auteurs : P. Kabra Ashwini, Auteur ; Prakash A. Mahanwar, Auteur Année de publication : 2008 Article en page(s) : p. 85-96 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Polyols Résines acryliques Index. décimale : 667.9 Revêtements et enduits Résumé : High performance coatings and 2K coatings are one of the major applications where acrylic polyols are used. This paper focuses on basic chemistry of mnomers, synthesis, properties applications of acrylyc polyols. The different areas where acrylic polyols are used are acrylic-urethane hybrid systems, wood coatings preparation of bio-acrylic polyols. Acrylic polyols offer excellent aesthetics, hardness, gloss retention, excellent solvent resistance with low VOC. Acrylic polyols are the materials of choice in many applications and hence is potential area of research. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7201 [article]

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Biodegradable nanacomposites and their applications / N. Singh in SURFACE COATINGS INTERNATIONAL, Vol. 90, 7 (10/2007)  

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 90, 7 (10/2007) . - p. 308-319 Titre : Biodegradable nanacomposites and their applications Type de document : texte imprimé Auteurs : N. Singh, Auteur ; Prakash A. Mahanwar, Auteur ; V. C. Malshe, Auteur Année de publication : 2007 Article en page(s) : p. 308-319 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : Synthetic polymers - generally referrred to as plastics - have become technologically very significant because they have replace glass, wood, masonry and other construction materials and even metals in many industrial, domestic, commercial and environmental applications. They have gained ground because of their favourable mechanical and thermal properties, easy processability, stability and durability. Note de contenu : - PLASTICS POSE A GROWING WASTE PROBLEM - BIOLOGICAL DEGRADATION PROCESSES : Defining biodegrability - BIODEGRADABLE POLYMERS - MICROBIAL DEGRADATION : Anaerobic degradation - DETERMINATION OF BIODEGRADABILITY - COMPOSITES - NANOCOMPOSITES - BENEFITS AND DRAWBACKS - PREPARATION OF NANACOMPOSITES - BIODEGRADABLE NANOCOMPOSITE TYPES - POLYESTER-BASED NANOCOMPOSITE : Polylactic acid/polylactide (PLA) - Poly(butylène succinate) nanocomposites - Poly(béta-hydroxyalkanoate) nanocomposites - Poly(béta-hydroxybutyrate) nanocomposites - Poly(epsilon-caprolactone) nanocomposites - Other aliphatic polyester nanocomposites - POLYESTER AMIDE-BASED NANOCOMPOSITES - STARCH-BASED POLYMERS - CELLULOSE BASED NANOCOMPOSITES - APPLICATIONS OF BIODEGRADABLE NANOCOMPOSITES : Biodegradability and biocompatibility - Mechanical properties and bioactivity - Gas barrier properties - Flammability reduction - Mechanical properties - Reduced solvent permeability En ligne : https://drive.google.com/file/d/1gibjPVFmarpN53xO2P-sMBYuNxgIU1Ee/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16204 [article]

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Biodegradable nanocomposites and their applications / N. Singh in PAINTINDIA, Vol. LVI, N° 7 (07/2006)

[article]  inPAINTINDIA > Vol. LVI, N° 7 (07/2006) . - p. 71-96 Titre : Biodegradable nanocomposites and their applications Type de document : texte imprimé Auteurs : N. Singh, Auteur ; Prakash A. Mahanwar, Auteur ; V. C. Malshe, Auteur Année de publication : 2006 Article en page(s) : p. 71-96 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Note de contenu : - The biological degradation - Defining biodegradability - Biodegradable polymers - Microbial degradation - The anerobic degradation - Biodegradability determination - Composites - Nanocomposites - Advantages of nanocomposites - Disadvantages of nanocomposites - Preparation of nanocomposites - Biodegradable nanocomposites - Polyesters based nanocomposites - Poly (β-hydroxyalkanoate) nanocomposites - Starch based polymers - Cellulose based nanocomposites - Applications of biodegradable nanocomposites Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11567 [article]

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Card phenol based benzoxazine resin and its blends with epoxy and saturated polyester for coating application / P. Katkar in SURFACE COATINGS INTERNATIONAL, Vol. 103.6 (11-12/2020)  

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 103.6 (11-12/2020) . - p. 342-349 Titre : Card phenol based benzoxazine resin and its blends with epoxy and saturated polyester for coating application Type de document : texte imprimé Auteurs : P. Katkar, Auteur ; I. Sancheti, Auteur ; D. S. Bhutada, Auteur ; A. Rajput, Auteur ; S. Thorat, Auteur ; S. Radhakrishnan, Auteur ; A. Sabnis, Auteur ; Prakash A. Mahanwar, Auteur ; M. B. Kulkarni, Auteur Année de publication : 2020 Article en page(s) : p. 342-349 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Benzoxazine Caractérisation Cardanol Epoxydes Essais de brouillard salin Ethanolamine L'éthanolamine, également appelée 2-aminoéthanol ou monoéthanolamine, est un composé chimique organique qui est à la fois une amine primaire (par son groupe amine) et un alcool primaire (par son groupe hydroxyle). À l'instar des autres amines, la monoéthanolamine se comporte en base faible. L'éthanolamine est un liquide toxique, inflammable, corrosif, incolore et visqueux ; son odeur est similaire à celle de l'ammoniac. Paraformaldéhyde Phénols Polybenzoxazine Polyesters Résistance à l'abrasion Résistance au chocs Résistance chimique Réticulation (polymérisation) Revêtements -- Propriétés mécaniques Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : A free hydroxyl-containing benzoxazine monomer was synthesised using bio-based card phenol, paraformaldehyde and ethanolamine by a Mannich condensation reaction. The hydroxyl-containing benzoxazine monomer synthesised was characterised by FT-IR spectroscopy. Curing of the benzoxazine was monitored by using Differential Scanning Calorimetry (DSC). The free hydroxyl group in the benzoxazine monomer helps to enhance the adhesion of polybenzoxazine coating with the metal substrate. The synthesised benzoxazine was copolymerised with an epoxy resin and a saturated polyester resin for potential coating applications and their curing was monitored using DSC and FT-IR spectroscopy. The benzoxazine-epoxy copolymerised system demonstrated enhanced mechanical, chemical and thermal properties compared to the benzoxazine-saturated polyester system as well as compared with neat polybenzoxazine. Note de contenu : - EXPERIMENTAL : Raw materials - Synthesis of card phenol-based benzoxazine - Blend preparation - Characterization - RESULTS AND DISCUSSION : FT-IR analysis - DSC analysis - TGA analysis - Mechanical properties - Chemical resistance - Solvent scrub resistance - Stalt-spray test - Water absorption - Scheme 1 : Synthesis of card phenol-based benzoxazine monomer and thermal polymerisation - Scheme 2 : Curing reaction of hydroxyl-functional benzoxazine and epoxy resin - Scheme 3 : Curing reaction of hydroxyl-functional benzoxazine and saturated polyester resin - Scheme 4 : Chemical structure of unsaturated card phenol - Table 1 : Sample compositions of BZ-EP and BZ-SPE coatings - Table 2 : Char yield, temperature at 5% weight loss (T5%) and temperature at 10% weight loss (T10%) for polybenzoxazine and all BZ-EP and BZ-SPE compositions - Table 3 : Mechanical properties of polybenzoxazine, BZ-EP and BZ-SPE coatings - Table 4 : Acid and alkali resistance of polybenzoxazine, BZ-SPE coatings - Fig. 1 : a) Polybenzoxazine, b) BZ-EP BZ 30/EP 70, c) BZ-SPE BZ 40/SPE 60 coating on mild steel panels - Fig. 2 : FT-IR analysis of a) benzoxazine, b) saturated polyester and c) BZ-SPE BZ 40/SPE 60 - Fig. 3 : DSC thermogram of a) BZ-SPE and b) BZ-E° in temperature range of 30 to 550°C - Fig. 4 : TGA thermograms of a) polybenzoxazine, b) saturated polyester, c) 30BZ/70EP and d) 40BZ/60SPE - Fig. 5 : Scratch hardness and impact resistance of a) BZ-EP and b) BZ-SPE coatings - Fig. 6 : Coating surface before and after the salt spray test in 3.5% NaCI solution for 120 hr (a) Polybenzoxazine, (b) BZ-EP and (c) BZ-SPE coatings En ligne : https://drive.google.com/file/d/1O2NT4Z_NqEeo0vFz5t-6Bq2E9luEEgAB/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34921 [article]

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Cool coatings / Priyanka K. Sahu in PAINTINDIA, Vol. LXI, N° 4 (04/2011)

[article]  inPAINTINDIA > Vol. LXI, N° 4 (04/2011) . - p. 61-67 Titre : Cool coatings Type de document : texte imprimé Auteurs : Priyanka K. Sahu, Auteur ; V. A. Bambole, Auteur ; Prakash A. Mahanwar, Auteur Année de publication : 2011 Article en page(s) : p. 61-67 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Isolation thermique Protection thermique Rayonnement infrarouge Réflectivité thermique Revêtements Index. décimale : 667.9 Revêtements et enduits Résumé : The exponential growth of urban areas has produced what is called the "Urban Heat Island" effect with heat-absorbing roofs being among the chief culprits. Houses with concrete slabs which are directly exposed to sun become very hot during summer and very cold during winter. The phenomenon of urban island is becoming increasingly more intense in urban areas modifying the microclimate of these areas and aggravating the climate. The desirable reduction in this can be achieved by using cool coatings which may be heat reflective or heat insulative in nature and has found applications in various sectors. A brief overview of cool coatings has been described in this paper and it is one of the ways to conserve the energy and reduce the energy consumption. Note de contenu : - NEED OF COOL COATINGS - HEAT ISLAND EFFECT - ALBEDO - SOLAR SPECTRUM - ULTRAVIOLET REGION (295-400nm) - VISIBLE REGION (400-700nm) - INFRA RED REGION (700-2500nm) - TYPE OF COOL COATINGS - HEAT (INFRARED) REFLECTIVE COATINGS - HEAT (INFRARED) RELECTIVE PIGMENT - COMPLEX INORGANIC COLORED PIGMENTS (CICP) : General benefits - Roofing benefits - Thermal insulation coatings - Microspheres - Types of microspheres - Polymeric microspheres - Inorganic microsphere - Glass microspheres - Dispersion of microspheres. - BINDER SYSTEMS : Acrylic emulsion - SILICONE - POLYURETHANE : Hybrid polyurethane thick-film coatings - APPLICATION AREAS : Roofs coatings - Automotive coatings - Heat-reflective paint for the decks of navy vessels - Thermal insulation coatings for pipes - Thermal insulation coating for rockets and spacecrafts. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11664 [article]

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Electron beam curable coatings and th use of vegetable oils in them : A review / Prakash A. Mahanwar in PAINTINDIA, Vol. LIX, N° 5 (05/2009)

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Electron beam curable nano-coatings / Prakash A. Mahanwar in PAINTINDIA, Vol. LIX, N° 6 (06/2009)

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Electron beam (EB) curable coatings : an overview / Mhatre Roshni in PAINTINDIA, Vol. LVIII, N° 6 (06/2008)

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Epoxy resin and their hybrid for coating application : a review / Rakesh N. Patil in PAINTINDIA, Vol. LX, N° 3 (03/2010)

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Nano-silica-containing acrylic polyurethane and acrylic-polyester hybrid polyurethane coatings for direct-to-metal (DTM) coating applications – a comparative study / Sukanya Gangopadhyay in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 6 (11/2022)  

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Polypyrrole : synthesis, modifications and applications / A. G. Badgujar in PAINTINDIA, Vol. LXI, N° 8 (08/2011)

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Polyvinyl butyral - Excellent material for glass adhesive / Prakash A. Mahanwar in PAINTINDIA, PAINTINDIA (03/1999)

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Recent developments in the volatile corrosion inhibitor (VCI) coatings for metal : a review / Sukanya Gangopadhyay in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 4 (07/2018)  

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Redispersible acrylic emulsion for coating application / Akshay S. Gawankar in PAINTINDIA, Vol. LXXI, N° 3 (03/2021)  

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Redispersible acrylic emulsions for coating applications : An overview / Shruti M. Thaker in PAINTINDIA, Vol. LIX, N° 1 (01/2009)

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