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Effects of surface fluorination on the dyeing of polycarbonate (PC) resin / Jae-Ho Kim in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 2 (03/2022)
[article]
Titre : Effects of surface fluorination on the dyeing of polycarbonate (PC) resin Type de document : texte imprimé Auteurs : Jae-Ho Kim, Auteur ; Toshihiro Mishina, Auteur ; Masanari Namie, Auteur ; Fumihiro Nishimura, Auteur ; Susumu Yonezawa, Auteur Année de publication : 2022 Article en page(s) : p. 617-624 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation
Fluoration
Polycarbonates
Polymères -- Coloration
Polymères -- Surfaces
Rugosité
Traîtements de surfaceIndex. décimale : 667.9 Revêtements et enduits Résumé : The surface of polycarbonate (PC) was fluorinated with a mixed gas of F2 and O2 at 25 °C for 1 h. The surface roughness (Ra) of the fluorinated PC samples was about double that of the untreated sample (0.685 nm), while the water contact angle of the fluorinated PC samples decreased from 80° to 12°. The dyeing properties of the PC surface were enhanced after surface fluorination due to the increased roughness and hydrophilicity. Fluorination using a mixed gas with a higher F2 proportion led to the formation of a thicker dyeable fluoride layer, thereby giving a deeper color after staining of the PC surface. Note de contenu : - EXPERIMENTAL DETAILS : Surface fluorination of polycarbonate - Material characterization - Dye staining of polycarbonate
- RESULTS AND DISCUSSION : Dyeing of surface-modified PC plates
- Table 1 : Untreated and fluorinated PC samples and the various F2 and O2 gas mixing ratios
- Table 2 : Elemental composition contents of PC samples evaluated from XPS resultsDOI : https://doi.org/10.1007/s11998-021-00551-4 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00551-4.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37292
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 2 (03/2022) . - p. 617-624[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23408 - Périodique Bibliothèque principale Documentaires Disponible Improving resin colors / Dieter Guhl in PAINTINDIA, Vol. LXII, N° 9 (09/2012)
[article]
Titre : Improving resin colors Type de document : texte imprimé Auteurs : Dieter Guhl, Auteur Année de publication : 2012 Article en page(s) : p. 65-67 Langues : Anglais (eng) Catégories : Polyalkydes
Polycondensation
Polyesters
Polymères -- ColorationIndex. décimale : 667.9 Revêtements et enduits Résumé : Polycondensation resins, like alkyd- and polyester resins require high reaction temperatures during the manufacturing process. Temperatures usually significantly above 200°C are necessary for well known reasons : they help to drive out the reaction water, to achieve the desired molecular weight and to lower the overall reaction time. Further on in the case of alkyd resins high temperatures induces some polymerization reactions, which influence the viscosity of the resin positively.
But there are not only positive effects for the application of high reaction temperatures. Besides the energy costs the color of the resin is influenced. Not very surprisingly resin manufacturers note, that with high temperatures and long reaction times the color values of the resins increase. Resin customers prefer binders as lightly colored as possible to achieve full flexibility for the coloristic options in the finished paint.
The thermally induced color development of the condensation resins is dependent on several factors :
- quality of the raw material, especially of the nature-based oils and fatty acids,
- proper control of the cooking process
- the catalyst
- use of antioxidants
The color formation is chemically caused by different reactions as for example :
- dehydration reaction
- oxidation reaction
- formation of olefins, aldehyds or ethers,
- elimination reactions with formation of conjugated double bonds
- polymerization reactionsNote de contenu : - Quality of the raw materials
- Proper control of the cooking process
- Catalyst influence
- Use of antioxidants
- Table 1 : Color development of different oleic acid types after esterification at 200°C
- Table 2 : Catalysts for resins
- Table 3 : Color development in dependency of oil length
- Table 4 : Catalyst/antioxidant combinations and their effect on reaction time and color
- Table 5 : Resin composition for TIB AOA study
- Table 6 : Results for antioxicantsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16261
in PAINTINDIA > Vol. LXII, N° 9 (09/2012) . - p. 65-67[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14239 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Sealing the deal : Polymer expands versatility of sealants and adhesives while enhancing marketability Type de document : texte imprimé Auteurs : Hisao Furukawa, Auteur ; Takashi Hasegawa, Auteur Année de publication : 2002 Article en page(s) : p. 22-26 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion
Colles:Adhésifs
Métaux
Polymères
Polymères -- Coloration
Produits d'étanchéité
Transition vitreuse
ViscositéIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : The stabilities of MS sealants and adhesives can be attributed to MS Polymer's unique structure, purity, and wide formulation latitude. We would like to conclude this report with these two statements. These fundamental features, we believe, give customers wider formulation latitude to formulate sealants with "more stable properties", resulting in excellent paintability, non-staining sealants and adhesives with excellent metal bonding. It is Kaneka's commitment to develop a variety of reactive polymers and provide our customers with the opportunity to develop unique sealants and adhesives to meet ever-changing market needs. Finally, we would like to thank Professor Brockmann for allowing us to include his work in this article. Note de contenu : - Viscosity of MS polymer
- Tg of MS polymer
- Paintability
- Stone staining
- Conclusions for metal adhesionEn ligne : https://drive.google.com/file/d/1O7XXUX-vlpeo3xE7vPbw6S9NY8thbeWs/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20022
in ADHESIVES AGE > Vol. 45, N° 8 (08/2002) . - p. 22-26[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 001474 - Périodique Bibliothèque principale Documentaires Disponible