تهیه و بررسی ویژگی های نانوکامپوزیت پلی وینیل پیرولیدون ـ نانولوله کربن چند دیواره دارای گروه کربوکسیل

نوع مقاله: علمی-پژوهشی

نویسندگان

1 گروه مهندسی شیمی، واحد شاهرود، دانشگاه آزاد اسلامی، شاهرود، ایران

2 گروه شیمی، واحد رشت، دانشگاه آزاد اسلامی، رشت، ایران

چکیده

نانوکامپوزیت پلی وینیل پیرولیدون (PVP)/ نانولوله کربن دارای گروه عاملی کربوکسیل (MWCNT-COOH)، در محیط آبی تهیه شد. ساختار، ریخت شناسی، ویژگی­های گرمایی نانوکامپوزیت PVP/MWCNT-COOH به وسیله فناوری­هایFT-IR، SEM، TGA و DSC بررسی شد. براساس آنالیز DSC، دمای انتقال شیشه ایC˚159 برای نمونه (w/w5%) PVP/MWCNT-COOH به­ دست آمد. افزودن (w/w5%) MWCNT-COOH به PVP پایداری گرمایی پلیمر را تا دمای  C˚400  که در دمانگاشت TGA دیده شده است، افزایش داد. طیف FT-IR تشکیل پیوند هیدروژنی را بین MWCNT-COOH و PVP در نانوکامپوزیت (w/w5%) PVP/MWCNT-COOH تأیید کرده است.تصویرهای SEM  نانوکامپوزیت  (w/w5%)PVP/MWCNT-COOH به طور روشن توزیع MWCNT-COOH را در ماتریس پلیمر نشان داد.

کلیدواژه‌ها

موضوعات


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