Dispersion of nanoclays with poly(ethylene terephthalate) by melt blending and solid state polymerization

التفاصيل البيبلوغرافية
العنوان: Dispersion of nanoclays with poly(ethylene terephthalate) by melt blending and solid state polymerization
المؤلفون: Sung-Gi Kim, Saleh A. Jabarin, Elizabeth A. Lofgren
المصدر: Journal of Applied Polymer Science. 127:2201-2212
بيانات النشر: Wiley, 2012.
سنة النشر: 2012
مصطلحات موضوعية: Nanocomposite, Materials science, Polymers and Plastics, Intercalation (chemistry), General Chemistry, Surfaces, Coatings and Films, law.invention, chemistry.chemical_compound, Montmorillonite, chemistry, Polymerization, law, Materials Chemistry, Extrusion, Thermal stability, Composite material, Crystallization, Dispersion (chemistry)
الوصف: Melt intercalation of clay with poly(ethylene terephthalate; PET) was investigated in terms of PET chain mobilities, natures of clay modifiers, their affinities with PET, and nanocomposite solid state polymerization (SSP). Twin screw extrusion was used to melt blend PET resins with intrinsic viscosities of 0.48, 0.63, and 0.74 dL/g with organically modified Cloisite 10A, 15A, and 30B montmorillonite clays. Clay addition caused significant molecular weight reductions in the extruded PET nanocomposites. Rates of SSP decreased and crystallization rates increased in the presence of clay particles. Cloisite 15A blends showed no basal spacing changes, whereas the basal spacings of Cloisite 10A and Cloisite 30B nanocomposites increased after melt extrusion, indicating the presence of intercalated nanostructures. After SSP these nanocomposites also exhibited new lower angle X-ray diffraction peaks, indicating further expansion of their basal spacings. Greatest changes were seen for nanocomposites prepared from the lowest molecular weight PET and Cloisite 30B, indicating its greater affinity with PET and that shorter more mobile PET chains were better able to enter its galleries and increase basal spacing. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
تدمد: 0021-8995
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::1ed00d6c59494ea3ecc94fff6051a64c
https://doi.org/10.1002/app.37796
حقوق: CLOSED
رقم الأكسشن: edsair.doi...........1ed00d6c59494ea3ecc94fff6051a64c
قاعدة البيانات: OpenAIRE