نوع مقاله : مقاله کامل علمی پژوهشی
نویسندگان
1 عضو هئیت علمی گروه علوم و تکنولوژی چوب و کاغذ دانشگاه آزاد اسلامی واحد ساری
2 کارشناسی ارشد گروه صنایع چوب و کاغذ، دانشگاه آزاد اسلامی واحد آستارا، ایران
3 استادیار گروه صنایع چوب و کاغذ، دانشگاه آزاد اسلامی واحد آستارا، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسنده [English]
In this study, the effect of foaming agent content (0, 2 and 4%) and the amount of nanoclay (0, 2 and 5%) on cell structure and mechanical properties of high density polyethylene (HDPE)/wheat straw nanocomposites foam was investigated. Also maleic anhydride grafted polyethylene (MAPE) was used as coupling agent on fixed level of 3%. Wheat straw flour, HDPE, nanoclay, foaming agent and MAPE compounded in the internal mixer (HAAKE) and then milled granules were manufactured fiber-plastic foam samples by injection molding method at 180°C. Results show that with increasing foaming agent, average cell size and cell density increased and by adding nanoclay cell size decreased. Also by adding 4% foaming agent, foam density of HDPE/wheat straw composite decreased to 21.7%. The mechanical properties of HPDE/Wheat straw composite were reduced by adding the foaming agent, but tensile strength was improved by adding 2% of nanoclay and impact strength decreased. Further evidences of foaming agent and nanoclay effects on the properties of nanocomposite foams were observed by scanning electron microscopy (SEM).
کلیدواژه‌ها [English]
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