Effects of various polyolefin copolymers on the interfacial interaction microstructure and physical properties of cyclic olefin copolymer COC graphite composites
   
Yazarlar (6)
Doç. Dr. Alper KAŞGÖZ Yalova Üniversitesi, Türkiye
Dinçer Akın Istanbul Üniversitesi, Türkiye
Ali Durmus Istanbul Üniversitesi, Türkiye
Nevra Ercan Istanbul Üniversitesi, Türkiye
Faruk Öksüzömer Istanbul Üniversitesi, Türkiye
Ahmet Kaşgöz Istanbul Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Journal of Polymer Research
Dergi ISSN 1022-9760 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 07-2013
Cilt / Sayı / Sayfa 20 / 7 / 1–12 DOI 10.1007/s10965-013-0194-5
Özet
In this study, effects of various types of functional polyolefin copolymers (FPOCs), poly(isobutylene-alt-maleic anhydride), poly(maleic anhydride-alt-1-octadecene) and poly(ethylene-graft-maleic anhydride), on the microstructure formation, interfacial interaction and physical properties of cyclic olefin copolymer (COC)/graphite composites were investigated. The COC/graphite composites were prepared in a lab. scale twin screw extruder. Microstructural features of samples were studied in a field emission scanning electron microscopy (FESEM). Viscoelastic properties of samples, obtained from the rheology tests in melt state and the dynamic mechanical analysis in solid state were used to quantify interfacial interactions between the COC and graphite depending on the types of FPOC. The average aspect ratio (A f) values of graphite flakes in the COC phase were determined about 40-65 by SEM observation and image analysis study on the samples prepared with different types of FPOC. Based on the gas permeability measurements, tortuous diffusion model suggested that the A f values of graphite flakes varied between 40 and 80 depending on the amount of graphite. It was shown that the poly(isobutylene-alt-maleic anhydride) copolymer provided relatively higher interfacial interaction between the COC and graphite flakes than the other FPOCs. © 2013 Springer Science+Business Media Dordrecht.
Anahtar Kelimeler
Composite | Cyclic olefin copolymer | Graphite | Interface | Polyolefin copolymer