| 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 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 2 (03/2019) . - p. 511-520
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Synthesis and characterization of high-temperature-resistant and optically transparent polyimide coatings for potential applications in quartz optical fibers protection in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 2 (03/2019)
