تاثیرذرات نانورس و سازگارکننده MAPP بر خواص فیزیکی و مکانیکی چندسازه ساخته شده از کاغذ باطله / پلی‌پروپیلن

نوع مقاله: مقاله پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی، دانشگاه زابل

2 استادیار گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی، دانشگاه زابل

3 مربی گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی، دانشگاه زابل

4 استاد گروه شیمی، دانشکده مستقل شیمی، دانشگاه امیرکبیر

چکیده

در این پژوهش، اثر مقدار ذرات نانورس و سازگارکننده بر ویژگی‌های فیزیکی و مکانیکی چندسازه چوب‌پلاستیک حاصل از پلی‌پروپیلن و الیاف کاغذ باطله تحریر مورد بررسی قرار گرفت. برای این منظور، الیاف کاغذ باطله و پلی‌پروپیلن با نسبت‌ وزنی 50 درصد، به‌همراه ذرات نانورس (در سه سطح 0، 2 و 4 درصد) و سازگارکننده (در دو سطح 0 و 3 درصد) در دستگاه مخلوط‌کن داخلی در دمای 155 درجه سانتی‌گراد و سرعت ۶۰ دور در دقیقه مخلوط و نمونه‌ها به‌روش ترزیقی تهیه گردید. نتایج نشان داد که مقاومت‌های فیزیکی و مکانیکی چندسازه در حضور سازگارکننده بهبود یافته است. همچنین با افزودن مقدار ذرات نانورس و افزایش سطوح آن خواص جذب آب، واکشیدگی ضخامت، مقاومت‌های خمشی و کششی و مدول الاستیسیته خمشی وکششی چندسازه بهبود یافته است در صورتی‌که مقاومت به ضربه نمونه‌ها، دستخوش کاهش شده است. همچنین مطالعات ساختاری چندسازه به‌روش پراش اشعه ایکس نشان داد که توزیع ذرات نانورس در زمینه پلیمری از نوع بین لایه‌ای بوده، و با افزایش مقدار ذرات نانورس فاصله بین لایه‌ها افزایش یافته است.

کلیدواژه‌ها


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