3B baskılı PLA malzemelerin silika takviyeli epoksi kompozit ile daldırmalı kaplanmasının mekanik özelliklere etkisinin incelenmesi

Öz

Bir malzemenin yüzeyine, mekanik özelliklerini iyileştirmek amacıyla kompozit bir kaplama uygulanması işlemi özellikle düşük mekanik dayanımlı parçalar için önemlidir. Kaplama için kullanılan kompozitlerden birisi de seramik katkılı polimer kompozitlerdir. Birçok endüstride yaygın olarak kullanılan bu kompozitlerin, endüstriyel kaplama yönteminde kullanımıyla daha dayanımlı malzeme üretimi sağlanabilmektedir. Bu çalışmada, eklemeli imalat ve malzeme kaplama yöntemleri kullanarak 3B yazıcı ile %10, %15 ve %20 iç dolgu oranlarında üretilen PLA parçaların dış kısmı ağırlıkça %15 silisyum dioksit olan seramik takviyeli epoksi malzemeler ile kaplanarak kompozit malzemeler üretilmiştir. Üretim parametrelerinin çekme dayanımına ve sertliğine etkisi araştırılarak SEM analizleri gerçekleştirilmiştir. Çalışma sonucunda iç dolgu oranı %20 olan kaplamalı numunenin 22,34 MPa ile maksimum çekme dayanımına ve 74,7 Shore D ile maksimum sertlik değerine sahip olduğu bulunmuştur. SEM sonuçları ile kaplamaların parça yüzeyine homojen bir şekilde sağlandığı desteklenmiştir. Elde edilen sonuçlar, 3B üretilen malzemelerin kaplanması ile yüksek performanslı malzemeler üretme konusunda önemli bir potansiyele sahip olduğunu kanıtlamaktadır.

Anahtar Kelimeler

• Kompozit malzemeler
• Daldırmalı kaplama
• Mekanik özellikler
• Silika

Investigation of the effect of dip coating with silica reinforced epoxy composite on the mechanical properties of 3D printed PLA materials

Abstract

Coating parts with a composite improves mechanical strength, especially for low-strength materials. Ceramic reinforced polymer composites are one such coating, used in many industries to produce durable materials. In the study, composite materials were produced by coating the outer part of PLA parts produced with 10%, 15% and 20% fill densities with a 3D printer using additive manufacturing and material coating methods, with ceramic reinforced epoxy materials containing 15% silicon dioxide by weight. The impacts of the manufacturing parameters on tensile strength and hardness were investigated and SEM analyses were performed. The study concluded that the coated sample with an filler density of 20% demonstrated a maximum tensile strength of 22.34 MPa and a maximum hardness value of 74.7 Shore D. The SEM results showed the coatings were evenly deposited on the part's surface. The findings indicate that the coating of 3D-manufactured materials possesses considerable potential to produce high-performance materials.

Keywords

• Composite materials
• Dip coating
• Mechanical properties
• Silica

Kaynakça

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