Bazalt partikül takviyesinin üç boyutlu stereolitografi yöntemiyle üretilen polimerin mekanik özelliklerine etkisinin incelenmesi

Abstract

Bu çalışmada, bazalt fiber partikül (BFP) takviyesinin üç boyutlu Stereolitografi (SLA) ile üretilmiş polimerin (Formlabs gri standart reçinesi) mekanik özelliklerine etkisi araştırılmıştır. Çalışmada, takviyesiz ve farklı oranlarda beşer adet (%0.5, %1 ve %2) BFP takviyeli numuneler üretilmiş ve her numuneye uygulanan çekme testleri, tokluk ölçümleri ve sertlik testleri ile mekanik özellikleri değerlendirilmiştir. Çekme testi sonuçları, %1 BFP ile takviyelendirilmiş numunelerin %45.8 artışla en yüksek çekme mukavemetini sergilediğini ortaya koymuştur. Buna karşılık, %0.5 takviye oranlı numunelerde ise çekme dayanımı referans (takviyelendirilmemiş) numunelere göre hafif bir artış (%4.3) göstermiştir. %2 BFP takviyeli numuneler ise en düşük çekme dayanımını göstermiştir. Tokluk testleri, %0.5 ve %1 BFP takviyesinde parçacıkların matriste nispeten iyi dağılmış olduğunu ve bu sebeple enerji absorplama kapasitesini olumlu yönde etkilediğini göstermiştir. Ancak %2 BFP takviyesinde parçacıkların aglomerasyonu ve homojen olmayan dağılımı, tokluğun azalmasına neden olmuştur. Sertlik testi sonuçları, takviye miktarının artmasıyla birlikte genel olarak numunelerin sertliğinin arttığını göstermiştir. Fakat %2 BFP takviyeli numuneler takviyesiz numunelere göre daha yüksek bir sertlik değerine sahip olmasına rağmen, %1 takviyeli numunelere göre daha düşük bir sertlik değeri göstermiştir. Arşimet yoğunluk testleri sonuçları, doluluk oranının %99 seviyesinde olduğunu ve doluluk miktarının mekanik özellikler üzerinde belirgin bir etkiye sahip olmadığını göstermiştir. Sonuç olarak, BFP takviyesi SLA ile üretilmiş polimerin mekanik özelliklerini önemli ölçüde iyileştirmiş olup özellikle, çekme dayanımını ve sertliğini belirgin bir şekilde arttırmıştır. Fakat, parçacıkların homojen dağılımı mekanik özelliklerin iyileştirilmesi için kritik önem taşımaktadır. Doluluk oranının yüksek olması ve iç boşlukların minimal düzeyde olması, SLA ile üretilen parçaların mekanik performansının güvenilir ve tutarlı olduğunu göstermektedir.

Keywords

• Stereolitografi (SLA)
• Bazalt
• Mekanik özellikler

Investigation of the effect of basalt particle reinforcement on the mechanical properties of polymer manufactured by three-dimensional stereolithography

Abstract

In this study, the effect of basalt fiber particle (BFP) reinforcement on the mechanical properties of polymers produced by three-dimensional Stereolithography (SLA) was investigated. Five samples for unreinforced and reinforced different ratios of BFP (0.5%, 1%, and 2%) were manufactured, and their mechanical properties were evaluated through tensile tests, toughness calculations, and hardness tests. The tensile test results revealed that the samples reinforced with 1% BFP exhibited the highest tensile strength, with an increase of 45.8%. In contrast, samples with 0.5% reinforcement showed a slight increase in tensile strength (4.3%) compared to the reference (unreinforced) samples. Samples with 2% BFP reinforcement demonstrated the lowest tensile strength. Toughness tests indicated that at 0.5% and 1% BFP reinforcement, the particles were relatively well-dispersed in the matrix and therefore positively affected the energy absorption capacity. However, at 2% BFP reinforcement, particle agglomeration and inhomogeneous distribution led to a reduction in toughness. Hardness test results showed that the hardness of the samples generally increased with the reinforcement amount. Interestingly, although samples with 2% BFP reinforcement had higher hardness values than unreinforced samples, they exhibited lower hardness compared to samples with 1% reinforcement. The results of Archimedes density tests showed a fill rate of 99%, suggesting that the fill amount did not have a significant impact on mechanical properties. In conclusion, BFP reinforcement significantly improved the mechanical properties of polymers produced by SLA, particularly enhancing tensile strength and hardness. However, the homogeneous distribution of particles is critical for improving mechanical properties. The high fill rate and minimal internal voids demonstrate the reliability and consistency of the mechanical performance of SLA-produced parts.

Keywords

• Stereolithography (SLA)
• Basalt
• Mechanical properties

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