خواص وکاربردهای نانو کریستال های سلولز

نوع مقاله: مقاله پژوهشی

نویسندگان

1 استادیار چندسازه چوب،‌ گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی، دانشگاه تهران

2 دانشجوی دکتری فرآورده‌های چندسازه چوب،‌ گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی، دانشگاه تهران

3 دانش‌آموخته دکتری، گروه علوم و صنایع غذایی، دانشکده کشاورزی، دانشگاه صنعتی اصفهان

چکیده

در این مقاله، مروری بر تحقیقات اخیر صورت گرفته در زمینه تولید نانوذرات سلولز از منابع مختلف انجام شده است. این امر بر اساس فراوانی، تجدید‌پذیری، سختی و مقاومت بالا، سازگاری با محیط زیست و وزن پایین مواد مذکور صورت پذیرفته، بر مطالعات متعدد انجام شده در زمینه جداسازی نانوسلولز از منابع سلولزی مختلف استناد شده و استفاده از نانو ذرات سلولز در تولید مواد جدید با کاربردهای فراوان نیز مورد توجه قرار گرفته است. در این تحقیق علاوه بر ارائه مقدمهای از خواص نانوسلولز، به بررسی روش‌های متفاوت جداسازی نانوکریستالها (از مشتقات نانو سلولز) از انواع مواد اولیه نیز پرداخته شده است. نانوکریستال‌های سلولزی میله مانند (NC) را می‌توان با استفاده از فرایند هیدرولیز اسیدی از موادی همانند چوب، گیاهان فیبری حاصل از پسماندهای صنعتی و کشاورزی و سلولز باکتریایی استخراج کرد. در کل می‌توان گفت که تمرکز این تحقیق بر روی روشهای مختلف مشخصهیابی، شناخت خواص و ساختار مواد و ویژگیهای جامع نانوکریستال‌های بدست آمده از منابع مختلف بر اساس استناد به تحقیقات انجام گرفته در این زمینه می‌باشد. این مطالعه بحث جامعی در خصوص استخراج نانو سلولز از منابع اولیه مختلف و پتانسیل نانوذرات سلولزی برای استفاده در طیف گسترده‌ای از برنامه‌های کاربردی با تکنولوژی متفاوت ارائه می دهد.

کلیدواژه‌ها

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