کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10627660 990072 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cellulose nanofiber-reinforced polycaprolactone/polypropylene hybrid nanocomposite
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Cellulose nanofiber-reinforced polycaprolactone/polypropylene hybrid nanocomposite
چکیده انگلیسی
In this study, cellulose nanofiber (CNF) production was attempted by using a batch-type kneader with six twin-screw elements. Screw elements were twisted with 22.5° to generate a high shearing force. The obtained fibrillated products showed a nanoscale morphology, indicating the effectiveness of using a batch-type kneader. For better CNF dispersion in the polymer matrix, CNFs were first distributed in polycaprolactone (PCL) with a low melting temperature to avoid the vaporization of water in a CNF-water solution and then this composite was further mixed with polypropylene (PP) at 180 °C. The distributions of the PCL domain and CNF in PP were improved by the addition of maleic anhydride-grafted-PP. The elastic modulus of the hybrid composite thus obtained was increased by the addition of only 1% CNF. The crystallization of both polymers in the composites started at a higher temperature than in neat polymers during cooling DSC scanning.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 42, Issue 2, February 2011, Pages 151-156
نویسندگان
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