Preparation of elastomeric foam having high cell pressure and foaming agent content-independent foam density
- سال انتشار: 1395
- محل انتشار: پنجمین کنفرانس بین المللی کامپوزیت
- کد COI اختصاصی: COMPOSIT05_052
- زبان مقاله: انگلیسی
- تعداد مشاهده: 406
نویسندگان
Department of Chemical Engineering, Isfahan University of Technology,۸۴۱۵۶-۸۳۱۱۱, Isfahan, Iran
Department of Chemical Engineering, Isfahan University of Technology,۸۴۱۵۶-۸۳۱۱۱, Isfahan, Iran
Faculty of process, Iran Polymer and Petrochemical Institute, ۱۴۹۷۷۱۳۱۱۵, Tehran, Iran
Department of Polymer Scienczxce and Engineering, University of Bonab,۵۵۵۱۷۶۱۱۷۶, Bonab, Iran
چکیده
The closed-cell natural rubber (NR) foam including bubbles with high gas pressure was produced by controlexpansion method using one step compression molding. In this study, the simultaneously improvement in the rubber modulus and hardness with rubber resilience is reported for first time. The results showed that the expansion ratio andfoam density became constant independent of foaming agent (Azodi bicarbonamide, ADC) content, while the gas pressure inside the bubbles increased by increasing ADC content. Cells with high gas pressure acted as filler and increased mechanical properties. The increase in the ADC content from 1 to 10 phr yielded in a 94%, 55% and 70%increase of the Hardness, Elastic modulus and resilience, respectively. The scanning electron microscopy (SEM) results demonstrated that all the foams had uniform structure and the maximum and minimum cell size (550 and 330 μm) was occurred in the sample with 3 phr and 10 phr of ADC respectively.کلیدواژه ها
Control expansion, Foaming agent, Natural rubber foam, Resilience propertiesمقالات مرتبط جدید
اطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.