کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5200841 1502875 2017 21 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Consolidation process boundaries of the degradation of mechanical properties in compression moulding of natural-fibre bio-polymer composites
ترجمه فارسی عنوان
محدوده فرایند تثبیت تخریب خواص مکانیکی در قالب بندی فشرده سازی کامپوزیت های بیو پلیمر طبیعی فیبر
کلمات کلیدی
کامپوزیت های بیو پلیمر، تخریب شیمیایی، الیاف طبیعی، ویژگی های مکانیکی، تضعیف پردازش حرارتی،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
In spite of the volume of literature on natural fibres, bio-matrix materials and their composites, the choices of optimum process parameters such as moulding temperature, pressure and compression time are still largely based on experience, rules of thumb and general knowledge of the chemical and physical processes occurring in the melt during consolidation. The moulding process itself is a complex balance between processes that must occur for the composite to successfully consolidate and the onset of thermal degradation of the natural fibre and/or matrix materials. This paper brings together models of thermal penetration, melt infusion, thermal degradation and chemical degradation of natural polymers to construct an ideal processing window for a bio-composite. All processes are mapped in terms of normalized consolidation progress parameters making it easier to identify critical processes and process boundaries. Validation of the concept is achieved by measuring changes in the mechanical properties of a flax/PLA bio-composite formed over a range of processing conditions within and outside of the optimized window.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Degradation and Stability - Volume 138, April 2017, Pages 115-125
نویسندگان
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