کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5439743 | 1509877 | 2017 | 34 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sorting natural fibres: A way to better understand the role of fibre size polydispersity on the mechanical properties of biocomposites
ترجمه فارسی عنوان
مرتب سازی الیاف طبیعی: روش بهتر درک نقش پلییدیزاسیون اندازه فیبر بر خواص مکانیکی بیو کامپوزیت ها
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
Wheat straw fibres (WSF), obtained by successive dry grindings, were sorted by air-classification to produce two fractions, i.e. coarse fibres cleared from fines, allowing to investigate the impact of size polydispersity on their reinforcing effect in polyhydroxy-(butyrate-co-valerate) (PHBV)-based composites. Composite materials filled with up to 30Â wt% of both unsorted and sorted fibres were prepared by extrusion and structurally analysed. SEM pictures evidenced a better fibre/matrix adhesion in the case of fines, whereas crystallisation behaviour was not affected differently by the type of fraction used. The type of fibre did not significantly impact PHBV molecular weight. As regards tensile properties, no significant impact of sorting was noticed. Explaining this effect was difficult to gauge, as sorting affected, at the same time, fibre composition, size and aspect ratio, thus leading to competitive phenomena. The poor interfacial fibre/matrix adhesion was identified as the key phenomenon governing the mechanical properties of PHBV/WSF composites.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 95, April 2017, Pages 12-21
Journal: Composites Part A: Applied Science and Manufacturing - Volume 95, April 2017, Pages 12-21
نویسندگان
Marie-Alix Berthet, Claire Mayer-Laigle, Xavier Rouau, Nathalie Gontard, Hélène Angellier-Coussy,