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Study on the compatibility and crystalline morphology of NBR/PEO binary blends
- Source :
- Journal of Materials Science. 48:6811-6817
- Publication Year :
- 2013
- Publisher :
- Springer Science and Business Media LLC, 2013.
-
Abstract
- Compatibility property, as well as crystalline morphology, of NBR/PEO blends has been investigated by Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), X-ray diffraction (XRD), and polarized optical microscopy (POM) thoroughly. There is no apparent shift of nitrile or ether groups in the FTIR spectra of NBR/PEO blends. Based on the calculations from glass transition temperature, the maximum volume fraction of PEO dissolved in NBR phase is about 6.41 % in blend with 5 wt% PEO content (PEO-5), indicating a weak intermolecular interaction in the NBR/PEO blends. From the characteristic absorption bands in the FTIR spectra, XRD and POM graphs, the crystallinity ratio of NBR/PEO blends decreases as the NBR content increases, which is further proved by DSC measurement that the crystallinity ratio and crystal melting temperature of pure PEO are 82.6 %, 69.9 °C, and that of PEO-5 are 16.9 %, 59.5 °C. This illuminates that the weak intermolecular interaction will affect the crystallinity ratio and crystal melting temperature of the NBR/PEO blends.
- Subjects :
- Materials science
Nitrile
Mechanical Engineering
law.invention
Crystal
Crystallinity
chemistry.chemical_compound
Differential scanning calorimetry
Optical microscope
Chemical engineering
chemistry
Mechanics of Materials
law
Polymer chemistry
Volume fraction
General Materials Science
Fourier transform infrared spectroscopy
Glass transition
Subjects
Details
- ISSN :
- 15734803 and 00222461
- Volume :
- 48
- Database :
- OpenAIRE
- Journal :
- Journal of Materials Science
- Accession number :
- edsair.doi...........2b8801918948bd5a5056cfce51ab1550