Dépouillements

Novel chlorinated film formers for high performance coatings / S. Bhandari in PAINTINDIA, Vol. XLV, N° 7 (07/1995)

[article]  inPAINTINDIA > Vol. XLV, N° 7 (07/1995) . - p. 19-35 Titre : Novel chlorinated film formers for high performance coatings Type de document : texte imprimé Auteurs : S. Bhandari, Auteur ; S. Chandra, Auteur Année de publication : 1995 Article en page(s) : p. 19-35 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Peinture  Liant  'Polymère  chlore'  'Résine  alkyde'  Préparation  Chloration  'Huile  soja'  'Corps  gras  végétal'  époxyde'  'Polyacrylate  de  butyle'  'Copolymère  acrylate  méthacrylate  méthyle'  'Propriété  thermique'  mécanique'  chimique'  Feuil  'Article  synthèse' Index. décimale : 667.9 Revêtements et enduits Résumé : Chlorinated alkyds, epoxy esters and butyl acrylate-méthyl methacrylate (BA-MMA) copolymers were synthesised by bubbling dry chlorine gas in carbon tetrachloride solution. The chlorination of DCO alkyd was studied both in the absense as well as in the presence of iodine catalyst. Soybean and nigerseed oil alkyds and linsseed oil epoxy ester were, however, chlorinated without catalyst only. The chlorination of BA-MMA copolymer was performed in the presence of UV light. It was found that the maximum chlorine content of about 50-55 per cent could be achieved in DCO, soybean and nigerseed oil alkyds and linseed oil epoxy ester. Five samples each of chlorinated DCO, soybean and nigerseed oil alkyds and four samples of chlorinated epoxy ester, varying in the chlorine content, were synthesized in order to study the effect of chlorine. In the case of BA-MMA copolymer maximum chlorine content about 26 per cent was obtained. One more sample of chlorinated BA-MMA copolymer, with lesser chlorine content, was synthesized for comparison purposes. It was confirmed through IR spectroscopy that chlorine enters only into the aliphatic portions of all the three alkyds and epoxy ester molecules by addition and substitution reactions and only into the aliphatic main chain of the BA-MMA copolymer molecule by substitution reaction. Thermal stability of all the chlorinated products was determinated by the Bloomfield test and by the weight loss procedure and compared with that of the commercial sample of chlorinated rubber. It was found that the termal stability increases with the chlorine content. In the case of chlorinated BA-MMA copolymers, the thermogravimetric analysis (T.G.A) was also carried out which further confirmed that the thermal stability increases with the chlorine content. All the products were characterized for sulubility, compatibility, colour viscosity, iodine value, epoxide equivalent and molecular weight. The mechanical and chemical film properties were also appraised simultaneously which revealed that, in general, the cholorinated products possessed superior film properties as compared to those of the unchlorinated ones expect in terms of flexibility and adhesion and solvent resistance. All the chlorinated products also passed the standard tests for protection against corrosion and resistance to salt-spray and fire, justifying their application in high performance coatings. Note de contenu : - Important materials - Chlorinated DCO alkyds : Preparation of alkyd - Chlorination - Samples prepared - Chlorinated soybean oil alkyds : Preparation of alkyd - Chlorination - Samples prepared - Chlorinated nigerseed oil alkyds : Preparation of alkyd - Chlorination - Samples prepared - Chlorinated epoxy esters : Preparation of epoxy ester - Chlorination - Samples prepared - Chlorinated acrylics : Preparation of poly (butyl acrylate) - Chlorination - Preparation of chlorinated butyl acrylate-methyl methacrylate (BA-MMA) copolymer - Sample prepared - Characterization : Solubility and compatibility - Colour - Viscosity - Addition/substitution of chlorine - Thermal stability - Evaluation : Drying time - Flexibility and adhesion - Impact resistance - Scratch hardness - Water, acid and alkali resistance - Solvent resistance - Protection against corrosion - Resistance to salt-spray - Fire resistance Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13620 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
006454	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Catalytic curing of industrial OEM coatings - Part - II / H. S. Hardas in PAINTINDIA, Vol. XLV, N° 7 (07/1995)

[article]  inPAINTINDIA > Vol. XLV, N° 7 (07/1995) . - p. 37-41 Titre : Catalytic curing of industrial OEM coatings - Part - II Type de document : texte imprimé Auteurs : H. S. Hardas, Auteur ; K. S. Samuel, Auteur Année de publication : 1995 Article en page(s) : p. 37-41 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Note de contenu : - Examples of catalysis : Free acids - Latent catalysts - Metal salts - Miscellaneous - Formulating principles and selection of catalysts - Performance indicators of catalysis Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13621 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
006454	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Paint stripping composition / V. Hawaldar in PAINTINDIA, Vol. XLV, N° 7 (07/1995)

[article]  inPAINTINDIA > Vol. XLV, N° 7 (07/1995) . - p. 43-45 Titre : Paint stripping composition Type de document : texte imprimé Auteurs : V. Hawaldar, Auteur Année de publication : 1995 Article en page(s) : p. 43-45 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Peinture  Enlèvement  Décollement  Feuil  'Solvant  organique' Index. décimale : 667.9 Revêtements et enduits Résumé : The removal of paint, coatings from various substrates has become a common place industrial operation for a number of reasons, viz. recovery of paint shop rejects, reconditioning items from service or repainting capital equipments. The paint binders play a decisive role in paint dissolution. A good paint remover must act quickly to swell and soften the paint film so that it can be readily removed by soft scraping or flushing with water. Additionally, it must be non-corrosive to the base metal and leave a surface which can be easily recoated. Note de contenu : - Halogenated hydrocarbon - Non halogenated organic solvents - Acid based paint strippers Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13628 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
006454	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Health hazards in coating industry / N. Krishnamurtin in PAINTINDIA, Vol. XLV, N° 7 (07/1995)

[article]  inPAINTINDIA > Vol. XLV, N° 7 (07/1995) . - p. 47-51 Titre : Health hazards in coating industry Type de document : texte imprimé Auteurs : N. Krishnamurtin, Auteur Année de publication : 1995 Article en page(s) : p. 47-51 Langues : Anglais (eng) Tags : 'Industrie  peinture  vernis'  Sécurité  'hygiène  travail'  Liant  Solvant  Toxicité Index. décimale : 667.9 Revêtements et enduits Résumé : The manufacture of paints, varnishes and lacquers is not considered a very dangerous occupation, but health hazards do exist in any plants where liquid and dry materials are handled. The physicalnature of certain pigments and inerts will cause irritation to the repiratory system. Many dusts are potential explosion hazards. Hoods over machinery or respiratory masks should be provided when such conditions exist. Note de contenu : - Toxic effects induced by poisonous pigments and paint materials - Precautions - Injurious and toxic substances (mainly organic) used in paints, varnishes and lacquers - Skin troubles, dermatitis, inflammation etc. caused by solvents, thinners, lacquers etc. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13629 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
006454	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Alkyl phenol ethoxylate-free pigment dispersion for aqueous paints and inks / A. Bouvy in PAINTINDIA, Vol. XLV, N° 7 (07/1995)

[article]  inPAINTINDIA > Vol. XLV, N° 7 (07/1995) . - p. 53-56 Titre : Alkyl phenol ethoxylate-free pigment dispersion for aqueous paints and inks Type de document : texte imprimé Auteurs : A. Bouvy, Auteur Année de publication : 1995 Article en page(s) : p. 53-56 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Peinture  eau'  Encre  Pigment  'Dispersion  aqueuse'  Viscosité Index. décimale : 667.9 Revêtements et enduits Résumé : Pigment dispersion is the technique of incorporating a solid pigment phase within a liquid phase. The efficiency of dispersion is a key factor influencing both the performance and ultimate probability of a paint or printing ink formulation (1). With the increasing costs of pigments and energy, it makes economic sense to ensure both are used efficiently to achieve optimum tinctorial strengh per kilo of pigment with minimun energy consumption. THis publication gives details of the incorporation of some newly-designed surfactants from ICI into several tradional methods for the production of stable pigment dispersions in water The practical benefits that can accrue in the finished paints or printing inks are highlighted. Note de contenu : - Dispersion: Why is it necessary ? - The dispersion process - Viscosity of pigment dispersions Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13630 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
006454	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Anatomy of Paint - Part: XVI / Clive H. Hare in PAINTINDIA, Vol. XLV, N° 7 (07/1995)

[article]  inPAINTINDIA > Vol. XLV, N° 7 (07/1995) . - p. 61-66 Titre : Anatomy of Paint - Part: XVI Type de document : texte imprimé Auteurs : Clive H. Hare, Auteur Année de publication : 1995 Article en page(s) : p. 61-66 Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Note de contenu : - Acrylic resins - Solvent soluble - Acrylic monomers and their effect on polymer properties - Thermoplastic acrylics : - Polymerization - Utility - Thermosetting acrylics - Water-soluble acrylics - Multi-functional acrylic monomers and coating raw materials - Radiation curing systems (Urethane crylics and epoxy acrylics) - vinyl esters Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13641 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
006454	-	Périodique	Bibliothèque principale	Documentaires	Disponible