نانو کامپوزیت های اپوکسی تقویت شده با نانو ذرات چارچوب های آلی فلزی: مطالعه و آنالیز مورفولوژی، خواص مکانیکی و تخریب گرمایی
محورهای موضوعی : پليمرها و نانوفناوریمحمدحسین کرمی 1 * , امید معینی جزنی 2 * , علیرضا باقری 3
1 - گروه مهندسی شیمی، دانشکده فنی و مهندسی، دانشگاه اصفهان، صندوق پستی 81746-73441 ، اصفهان، ایران
2 - گروه مهندسی شیمی، دانشکده فنی و مهندسی، دانشگاه اصفهان، صندوق پستی 81746-73441 ، اصفهان، ایران
3 - گروه مهندسی شیمی، دانشکده فنی و مهندسی، دانشگاه اصفهان، صندوق پستی 81746-73441 ، اصفهان، ایران
کلید واژه: رزین اپوکسی, چارچوب های آلی فلزی , مورفولوژی, خواص مکانیکی, تخریب گرمایی,
چکیده مقاله :
رزین اپوکسی به عنوان یکی از پلیمرهای گرماسخت، در صنایع مختلفی از جمله خودروسازی، الکترونیک و ساختمان کاربردهای گسترده‌ای دارد. ساختار شبکه‌ای قوی این رزین، آن را شکننده می‌سازد و به همین دلیل، پژوهشگران به دنبال افزایش چقرمگی آن با استفاده از نانوذرات پلیمری هستند. اپوکسی‌ها و چارچوب‌های آلی فلزی (MOFs) به دلیل خواص چسبندگی بالا و مقاومت شیمیایی، در صنایع مختلف مورد استفاده قرار می‌گیرند. چارچوب‌های آلی فلزی، ترکیباتی متشکل از یون‌های فلزی و لیگاندهای آلی هستند که به دلیل ساختار متخلخل و سطح بالای خود، در زمینه‌های مهندسی کاربرد دارند. این مطالعه نشان می‌دهد که استفاده از چارچوب‌های آلی فلزی اصلاح شده در نانو کامپوزیت‌های اپوکسی، تأثیرات مثبتی بر روی مورفولوژی و پراکنش نانوذرات دارد. حضور گروه‌های آمینی و متاکریلات به بهبود سازگاری و کاهش عیوب سطحی کمک می‌کند. همچنین، افزودن نانوپرکننده‌های اکسید گرافن و ملامین به بهبود پراکنش نانوذرات کمک کرده است. نتایج این پژوهش بر اهمیت بهینه‌سازی خواص سطحی و انتخاب مناسب پرکننده‌ها تأکید دارد و می‌تواند مبنایی برای تحقیقات آینده در این زمینه باشد. در این پژوهش به بررسی اثر چارچوب های آلی فلزی و چارچوب های آلی فلزی اصلاح شده بر مورفولوژی، خواص مکانیکی، پایداری گرمایی و تخریب گرمایی نانو کامپوزیت های اپوکسی پرداخته می شود. همچنین در این پژوهش به بررسی مطالعات و پیشرفت های اخیر در نانو کامپوزیت های اپوکسی حاوی چارچوب های آلی فلزی و نتایج مهم در کاربرد های آن پرداخته است.
Epoxy resin, as one of the thermosetting polymers, has extensive applications in various industries, including automotive, electronics, and construction. Its strong network structure makes it brittle, which is why researchers are seeking to enhance its toughness using polymeric nanoparticles. Epoxies and metal-organic frameworks (MOFs) are utilized in various industries due to their high adhesive properties and chemical resistance. MOFs are compounds composed of metal ions and organic ligands that are utilized in engineering fields due to their porous structure and high surface area. This study demonstrates that the use of modified metal-organic frameworks in epoxy resin and epoxy nanocomposites positively impacts the morphology and dispersion of nanoparticles. The presence of amine and methacrylate groups contributes to improved compatibility and reduced surface defects. Additionally, the incorporation of graphene oxide and melamine nanofillers has aided in enhancing the dispersion of nanoparticles. The results of this research emphasize the importance of optimizing surface properties and the appropriate selection of fillers, which can serve as a foundation for future investigations in this field. This study examines the effects of metal-organic frameworks and modified metal-organic frameworks on the morphology, mechanical properties, thermal stability, and thermal degradation of epoxy resin and epoxy nanocomposites. This study also examines recent research and advancements in epoxy nanocomposites containing metal-organic frameworks and highlights significant results in their applications.
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