کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6708057 502942 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Elasticity and long-term behavior of recycled polyethylene terephthalate (rPET)/montmorillonite (MMT) composites
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Elasticity and long-term behavior of recycled polyethylene terephthalate (rPET)/montmorillonite (MMT) composites
چکیده انگلیسی
Recycled polyethylene terephthalate (rPET) nanocomposites with various amounts of montmorillonite clay (MMT) have been manufactured by using twin screw extrusion. By rising MMT weight content Wf up to 1 wt.% it is possible to increase yield strength and ultimate strength of the composite by 17% and 27% respectively in comparison to neat rPET. Introduction of MMT in the rPET leads also to considerable increase of the modulus of elasticity E. Relationship E(Wf), however, is non-linear and is characterized by slow-down in E growth along with increasing MMT content. At low nanofiller content experimental results are sufficiently well described by using the method of Mori-Tanaka and the solution of Eshleby for the case of completely exfoliated chaotically oriented nanoparticles of MMT. Results of the investigation of long-term creep with duration of 5000 h testify that introduction of MMT in the rPET matrix leads to reduced creep of the composites. Equation of power law can be used for sufficiently reliable prediction of long-term creep of the investigated materials by the method of extrapolation to the time period, exceeding length of the short-term experiment by 50 times.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 111, May 2014, Pages 453-458
نویسندگان
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