CaCO3 Nanokatkılı Takviye ile FDM Yoluyla Üretilen Sandviç Panellerin Mekanik Performans Optimizasyonu

Abstract

Bu çalışma, değişen CaCO3 nanopartikül konsantrasyonlarına sahip ABS (Akrilonitril Bütadien Stiren) filamentleri kullanılarak üretilen çekirdek-kabuk sandviç panellerinin mekanik performansını araştırmaktadır (%1, 2, 3 ve %5 ağırlık). ABS filamentleri bir ekstrüder kullanılarak üretildi ve bal peteği çekirdek yapıları basmak için Erimiş Biriktirme Modelleme (FDM) işlemi yoluyla çift ekstrüderli bir 3B yazıcıda kullanıldı. Paneller, mukavemet ve deformasyon özelliklerini değerlendirmek için üç noktalı eğme ve sıkıştırma testlerine tabi tutuldu. Sonuçlar, %3 ağırlıkta CaCO3 içeren ABS kompozitlerinin en yüksek ortalama arıza yüklerini sergilediğini ve saf ABS'ye kıyasla mekanik özellikleri önemli ölçüde iyileştirdiğini gösterdi. Ancak, daha yüksek CaCO3 konsantrasyonları (%5 ağırlıkta), nanopartikül aglomerasyonu ve zayıf dispersiyon nedeniyle mukavemetin azalmasına neden oldu ve bu da gerilim yoğunlaştırıcıları ve artan kırılganlığı ortaya çıkardı. Sonlu Elemanlar Analizi (FEA) gerçekleştirildi ve sonuçları deneysel bulgularla yakından uyumluydu ve modelin doğruluğu tespit edildi.

Keywords

• Sandviç panel
• Kompozit
• Nanopartikül
• Mekanik performans
• 3D yazıcı.

Mechanical Performance Optimization of ABS Core-Shell Sandwich Panels Fabricated via FDM with CaCO3 Nanoadditive Reinforcement

Abstract

This study explores the mechanical performance of core-shell sandwich panels fabricated using ABS (Acrylonitrile Butadiene Styrene) filaments with varying concentrations of CaCO3 nanoparticles (1, 2, 3, and 5wt%). The ABS filaments were produced using an extruder and utilized in a dual extruder 3D printer via the Fused Deposition Modeling (FDM) process to print honeycomb core structures. The panels were subjected to three-point bending and compression tests to assess their strength and deformation characteristics. The results indicated that the panels with 3 wt% CaCO3 nanoparticles achieved the highest average failure loads, enhancing the mechanical properties significantly over pure ABS. Specifically, the maximum bending stress for the 3 wt% added nanoparticle sample was recorded at 33.23 MPa. Conversely, increasing the CaCO3 concentration to 5 wt% diminished the strength, as nanoparticle agglomeration and poor dispersion acted as stress concentrators and enhanced brittleness. However, higher CaCO3 concentrations (5wt%) led to reduced strength due to nanoparticle agglomeration and poor dispersion, which introduced stress concentrators and increased brittleness. Finite Element Analysis (FEA) was performed, and its results closely aligned with the experimental findings, validating the accuracy of the model.

Keywords

• Sandwich panel
• Composite
• Nanoparticle
• Mechanical performance
• 3D printer

Supporting Institution

Adana Alparslan Turkes Science and Technology University

Ethical Statement

The study is complied with research and publication ethics.

Thanks

This work was supported by Scientific Research Coordination Unit of Adana Alparslan Turkes Science and Technology University with project number of 20332003.

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