دورية أكاديمية
Observations of a novel strengthening mechanism in HDPE nanocomposites
| العنوان: | Observations of a novel strengthening mechanism in HDPE nanocomposites |
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| المؤلفون: | Chinyere Okolo, Fawad Inam |
| المصدر: | Nanocomposites, Vol 4, Iss 4, Pp 215-222 (2018) |
| بيانات النشر: | Taylor & Francis Group, 2018. |
| سنة النشر: | 2018 |
| المجموعة: | LCC:Materials of engineering and construction. Mechanics of materials |
| مصطلحات موضوعية: | multi-wall carbon nanotubes (mwcnt), high density polyethylene (hdpe), strengthening mechanism, nanocomposites, orientation, tensile strength, modulus, extrusion, Materials of engineering and construction. Mechanics of materials, TA401-492, Polymers and polymer manufacture, TP1080-1185 |
| الوصف: | Previous strengthening mechanisms described in literature for high density polyethylene (HDPE) carbon nanotubes composites are typical of those observed in fibre reinforced polymeric micro composites. Here, we present a new molecular level strengthening mechanism based on HDPE carbon nanotubes composite, which has not been reported before to the best of authors’ knowledge. The HDPE nanocomposite was produced by melt intercalation technique via twin-screw extrusion. Thereafter, the samples were subjected to mechanical tensile tests and scanning electron microscope (SEM) examination. Carbon nanotubes (CNTs) were found to be disentangled from the polymer molecules after yielding and prior to breaking. SEM and optical microscopic observations revealed visible black agglomerate bands at 45° appeared after yielding and prior to the breaking of the ductile HDPE. It was observed that CNTs were pushed out from the intricate mechanical interlocking with the thermoplastic polymeric chains of HDPE during strain hardening. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2055-0332 20550324 |
| Relation: | https://doaj.org/toc/2055-0332 |
| DOI: | 10.1080/20550324.2018.1558798 |
| URL الوصول: | https://doaj.org/article/4ef41adb260844b58ff50f6d64cc9054 |
| رقم الأكسشن: | edsdoj.4ef41adb260844b58ff50f6d64cc9054 |
| قاعدة البيانات: | Directory of Open Access Journals |
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Full Text Finder | تدمد: | 20550332 20550324 |
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| DOI: | 10.1080/20550324.2018.1558798 |