Synthesis and characterization of high-temperature-resistant and optically transparent polyimide coatings for potential applications in quartz optical fibers protection / Yaojia Zhang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 2 (03/2019)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 2 (03/2019) . - p. 511-520 Titre : Synthesis and characterization of high-temperature-resistant and optically transparent polyimide coatings for potential applications in quartz optical fibers protection Type de document : texte imprimé Auteurs : Yaojia Zhang, Auteur ; Lingqiao Qu, Auteur ; Jingang Lu, Auteur ; Xiao Wu, Auteur ; Yan Zhang, Auteur ; Renlong Zhang, Auteur ; Haoran Qi, Auteur ; Xiumin Zhang, Auteur Année de publication : 2019 Article en page(s) : p. 511-520 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Fibres optiques Hautes températures Polyimides Quartz Résistance thermique Revêtements -- Propriétés optiques Revêtements organiques Revêtements protecteurs Transparence (optique) Index. décimale : 667.9 Revêtements et enduits Résumé : A series of optically transparent and colorless polyimide (CPI) coatings for quartz optical fibers (QOFs) protection were prepared by the copolymerization of two aromatic dianhydrides, 3,3′,4,4′-biphenyltetracarboxylic acid dianhydride (BPDA) and 2,2′-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride (6FDA), and 2,2′-bis(trifluoromethyl)benzidine (TFMB) by a two-step polymerization procedure via the soluble poly(amic acid) (PAA) precursors followed by thermal imidization at elevated temperatures. Various QOFs with the flexible and tough CPI coatings were successfully fabricated. Scanning electron microscopy measurements revealed that the CPI coatings tightly adhered to the quartz optical fibers without adding any adhesion promoters. The CPI coatings exhibited good optical transparency with the transmittance higher than 83% at 450 nm at a thickness of 10 μm, high lightness (L* > 93), low yellow indices (b* as low as 2.66), and low turbidity (haze as low as 0.57%). In addition, the CPI coatings exhibited good thermal and dimensional stability with glass transition temperatures (Tg) higher than 349°C and coefficients of linear thermal expansion (CTE) as low as 6.8 × 10−6/K in the range of 50–300°C. Note de contenu : - EXPERIMENTAL METHODS AND MATERIALS : Materials - Characterization methods - Polyimide coating preparation and QOF fabrication - RESULTS AND DISCUSSION : Polyimide coatings preparation and QOF micromorphology - Optical properties - Thermal properties DOI : 10.1007/s11998-018-0129-5 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-018-0129-5 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32421 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
20894	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 1 / 1)