پیوندهای مفید
اخبار و اعلانات
آمار
| تعداد نشریات | 31 |
| تعداد شمارهها | 864 |
| تعداد مقالات | 8,349 |
| تعداد مشاهده مقاله | 16,827,184 |
| تعداد دریافت فایل اصل مقاله | 11,258,118 |
Enhancing Mechanical, Thermal, and Rheological Properties of Recycled Polyethylene via Nano-Calcium Carbonate Reinforcement | ||
| Challenges in Nano and Micro Scale Science and Technology | ||
| مقاله 2، دوره 13، شماره 2، آذر 2025، صفحه 61-66 اصل مقاله (505.85 K) | ||
| نوع مقاله: Original Research Paper | ||
| شناسه دیجیتال (DOI): 10.22111/cnmst.2026.54409.1276 | ||
| نویسندگان | ||
| Hassan Fathinejad* ؛ Royasadat Heydari | ||
| Department of Chemistry, Far.C., Islamic Azad University, Farahan, Iran. | ||
| چکیده | ||
| The increasing demand for polyethylene has also led to a large amount of waste generated from this polymer, posing numerous environmental and economic challenges. Due to its high chemical stability, polyethylene waste is difficult to decompose and can remain in the environment for decades, leading to soil and water pollution.This study investigates the effect of incorporating nano-CaCO₃ into recycled polyethylene (rPE) composites. Due to extensive industrial use, polyethylene constitutes a significant portion of plastic waste, and its recycling often leads to reduced mechanical and thermal performance. The aim of this work was to improve the quality and durability of rPE by nanoparticle reinforcement, enabling efficient reuse in multiple recycling cycles.rPE samples containing 0–10 wt% CaCO₃ nanoparticles were prepared via melt blending and twin-screw extrusion. Mechanical (tensile strength, Young’s modulus, hardness), thermal (oxidation induction time, thermal expansion, DSC, TGA), and rheological (melt flow rate) tests were performed, complemented by microscopic analysis. Statistical analyses were conducted using one-way ANOVA and Duncan’s test.Results showed that 5 wt% CaCO₃ yielded optimal performance, increasing tensile strength and hardness, improving thermal stability, reducing thermal expansion, and maintaining favorable melt flow properties. Post-recycling tests indicated that nanoparticle-filled samples retained ~90% of their original mechanical properties after three recycling cycles, whereas neat rPE retained only 75%. Microscopy confirmed uniform nanoparticle dispersion at optimal loading, while higher concentrations led to agglomeration and reduced performance.These findings demonstrate that nano-CaCO₃ reinforcement is a cost-effective and environmentally beneficial approach to enhance recycled polyethylene properties, supporting sustainable polymer recycling and circular economy initiatives. | ||
| کلیدواژهها | ||
| Recycled polyethylene؛ Nano-calcium carbonate؛ Mechanical properties؛ Thermal stability؛ Melt flow rate | ||
| مراجع | ||
|
[1] Wang Y, Lu L, Hao Y, Wu Y, Li Y. Mechanical and processing enhancement of a recycled HDPE/POE-gMAH/CaCO₃ polymer composite. ACS Omega. 2021;6:20731–20739. doi:10.1021/acsomega.1c02354
[2] Merkneh C, Mengesha GA, Lemma S, Bekele G. Characterization of the interfacial interaction of precipitated and coated CaCO₃ nanoparticles in HDPE nanocomposites. Results in Materials. 2025;26:100690. doi:10.1016/j.rinma.2025.100690 [3] Ahmed YM, Ahmad MK. Influence of calcium carbonate reinforcement on mechanical properties and sustainability of HDPE-recycled plastic composites for industrial applications. Engineering and Technology Journal. 2025;43:677–592. doi:10.30684/etj.2025.160580.1967 [4] Kherici S, Benouali D, Nouredine C. The effects of calcium carbonate filler on HDPE pipe. Advances in Science and Technology Research Journal. 2022;16:213–218. doi:10.12913/22998624/149606 [5] Hapuwatte B, et al. Recovery pathway assessment of recycled HDPE for circular economy: shorter-life vs longer-life products. Procedia CIRP. 2024;122:366–371. doi:10.1016/j.procir.2024.02.011 [6] Dastjerdi J, Garmabi H. Influence of nano-sized calcium carbonate on adhesion of HDPE/cross-linked high density polyethylene multilayer structures. Advanced Polymer Technology. 2018;37:21733–21745. doi:10.1002/adv.21733 [7] Podara C, et al. Recent trends of recycling and upcycling of polymers: influence of fillers such as calcium carbonate. Recycling. 2024;9:37. doi:10.3390/recycling9030037 [8] Sahebian S, Zebarjad SM, Vahdati Khaki J, Sajjadi SA. The effect of nano-sized calcium carbonate on thermodynamic parameters of HDPE. Journal of Materials Processing Technology. 2009;209:1310–1317. doi:10.1016/j.jmatprotec.2008.03.066
[9] Tahari A, et al. Effects of polypropylene on the mechanical and physical properties of recycled HDPE composites with 20% CaCO₃. Journal of Pipeline Systems Engineering and Practice. 2025;17. doi:10.1061/JPSEA2.PSENG1948 [10]Alzerreca M, Paris M, Boyron O, Guillermin S, Choqueuse D. Recycling of HDPE pressure pipes: effect of multiple processing cycles. Polymer Degradation and Stability. 2018;152:30–38. [11]Xanthos M. Functional fillers for plastics. 2nd ed. Weinheim: Wiley-VCH; 2010. [12]Wang K, Wu J, Ye L, Zeng H. Mechanical properties and fracture behavior of polypropylene composites containing nano-CaCO₃. Composites Part A.2003;34:119–127. [13]Zhang QX, Yu ZZ, Mai YW. Crystallization and impact energy of polypropylene/CaC | ||
|
آمار تعداد مشاهده مقاله: 166 تعداد دریافت فایل اصل مقاله: 158 |
||