علوم و فناوری کامپوزیت

تحلیل تجربی خواص مکانیکی نانوکامپوزیت‌های بر پایه پلی‌آمید 6/ EPDM/ نانولوله‌های کربنی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد، مهندسی مکانیک، دانشگاه تربیت دبیر شهید رجایی، تهران.

2 استادیار، مهندسی مکانیک، دانشگاه تربیت دبیر شهید رجایی، تهرا ن.

چکیده

در این مقاله، خواص مکانیکی نانوکامپوزیت‌هایی بر پایه ماتریسی از دو فاز پلیمری پلی‌آمید 6و اتیلن پروپیلن دی ان مونومر (EPDM) تقویت شده با نانولوله‌های کربنی بررسی شده است. ترکیبات شامل 0% ، 1% ، 2 % و 3% وزنی نانولوله کربنی و نیز 5 % و 10% وزنی EPDM-G-MA به‌عنوان سازگار کننده و 10% و20 % وزنی EPDM هستند که توسط یک مخلوط‌کن داخلی تهیه شدند. نمونه‌ها برای انجام آزمون‌های مکانیکی توسط یک دستگاه پرس داغ تهیه شدند. آزمون‌های مکانیکی برای تعیین استحکام‌های ضربه و کشش، مدول الاستیسیته و ازدیاد طول در شکست انجام شدند. مشاهده شد که افزودن 1% وزنی نانولوله کربنی، استحکام ضربه را 12%، استحکام کششی را 25% و مدول الاستیک را 43% افزایش می‌دهد ولی ازدیاد طول در شکست را 13% کاهش می‌دهد. همچنین با حضور10 % وزنیEPDM ، استحکام ضربه 27% و ازدیاد طول در شکست 34% افزایش یافته ولی استحکام کششی پلی‌آمید 5% و مدول الاستیک آن 19% کاهش می‌یابد. برای بهبود موارد ذکر شده با افزودن 5% EPDM-G-MA استحکام ضربه 14% ، استحکام کششی 5% ، مدول الاستیک 20% و ازدیاد طول در شکست 13% افزایش پیدا کرد. نهایتاً با افزودن نانولوله‌های کربنی و ترکیب EPDM و EPDM-G-MA، همه خواص مکانیکی مذکور در پلی‌آمید6، بهبود داده شد.

کلیدواژه‌ها

عنوان مقاله [English]

Experimental Analysis of Mechanical Properties of Nanocomposites Based on Poly amide 6/ EPDM /Carbon Nanotubes

نویسندگان [English]

  • Ehsan Hamidi 1
  • valiollah Panahizadeh 2

1 Department of Mechanical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran.

2 Department of Mechanical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran.

چکیده [English]

In this paper, the mechanical properties of nanocomposites based on a matrix of two phases of polyamide 6 polymer and ethylene propylene diene monomer (EPDM) reinforced with carbon nanotubes are investigated. The compounds include 0%, 1%, 2% and 3% by weight of carbon nanotubes as well as 5 and 10% by weight of EPDM-G-MA as compatible and 10 and 20% by weight of EPDM prepared by an internal mixer. Samples were prepared for mechanical tests by a hot press machine. Mechanical tests were performed to determine the impact and tensile strengths, modulus of elasticity and elongation at failure. It was observed that adding 1% by weight of carbon nanotubes increases the impact strength by 12%, tensile strength by 25% and elastic modulus by 43%, but decreases the failure length by 13%. Also, with the presence of 10% EPDM, impact strength increased by 27% and elongation at fracture by 34%, but the tensile strength of polyamide decreased by 5% and its elastic modulus by 19%. To improve the mentioned cases, by adding 5% EPDM-G-MA, the impact strength increased by 14%, the tensile strength by 5%, the elastic modulus by 20% and the elongation at break by 13%. Finally, by adding carbon nanotubes and combining EPDM and EPDM-G-MA, all the mechanical properties mentioned in polyamide 6 were improved

کلیدواژه‌ها [English]

  • Nanocomposites
  • Mechanical properties
  • Polyamide
  • EPDM
  • Carbon Nanotubes
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علوم و فناوری کامپوزیت
دوره 8، شماره 1 - شماره پیاپی 1
خرداد 1400
صفحه 1453-1460
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