Investigation of flexural properties of hexagonal boron nitride added thermoplastic composites

Öz

In this study, weight percentages (wps) of 0%, 0.5%, 2% hexagonal boron nitrides (hBN) were added to 30 wt.% short glass fiber reinforced Polyamide (PA) 66 matrix (GF30) to fabricate the thermoplastic composite materials. The hBN additives were applied by coating of granules of 30 wt.% short glass fiber reinforced PA 66 (GF30) materials. The hBN coated thermoplastic materials were produced by plastic injection method. The effect of different wps of hBNs on the flexural properties of thermoplastic composites were examined in the produced samples. The produced samples were subjected to three-point bending tests. When looking at the results of the three-point bending tests, the highest increase of flexural properties was obtained in the sample of PA66/GF30/2% hBN added thermoplastic composite. The samples with 2 wt% hBN showed the best flexural properties with an improvement of 85 and 52% flexural modulus and strength, respectively, compared to the samples without hBN (PA66/GF30). According to the obtained results of this study, as the percentage of the hBN weight contents increased, the flexural strengths and flexural modulus increased significantly. It was concluded that hBN coated thermoplastic composite samples demonstrated high improvements of flexural properties at optimum rates of hBN.

Anahtar Kelimeler

• Hexagonal boron nitride (h-BN)
• short glass fiber reinforced polyamide 66
• flexural test

Altıgen bor nitrür entegreli termoplastik kompozitlerin eğilme özelliklerinin incelenmesi

Öz

Bu çalışmada, termoplastik kompozit malzemeleri üretmek için ağırlık yüzdeleri (wps) %0, %0,5, %2 hegzagonal bor nitrürler (hBN), ağırlıkça %30 kısa cam elyaf takviyeli Poliamid (PA) 66 matrisine (GF30) eklenmiştir. . hBN katkı maddeleri, ağırlıkça %30 kısa cam elyaf takviyeli PA 66 (GF30) malzemelerden oluşan granüllerin kaplanmasıyla uygulandı. hBN kaplı termoplastik malzemeler plastik enjeksiyon yöntemiyle üretildi. Üretilen numunelerde hBN'lerin farklı wps'lerinin termoplastik kompozitlerin bükülme özellikleri üzerindeki etkisi incelenmiştir. Üretilen numuneler üç nokta eğilme testine tabi tutuldu. Üç nokta eğme testi sonuçlarına bakıldığında eğilme özelliklerinde en yüksek artış PA66/GF30/%2 hBN katkılı termoplastik kompozit örneğinde elde edildi. Ağırlıkça %2 hBN'ye sahip numuneler, hBN içermeyen numunelere (PA66/GF30) kıyasla %85 ve %52'lik bir bükülme modülü ve mukavemet artışıyla en iyi bükülme özelliklerini gösterdi. Bu çalışmanın sonucuna göre, hBN ağırlık içeriğinin yüzdesi arttıkça eğilme mukavemetleri ve eğilme modülü önemli ölçüde arttı. hBN kaplı termoplastik kompozit numunelerin optimum hBN oranlarında bükülme özelliklerinde yüksek iyileşmeler gösterdiği sonucuna varıldı.

Anahtar Kelimeler

• Altıgen bor nitrür (h-BN)
• kısa cam elyaf takviyeli poliamid 66
• eğilme testi

Kaynakça

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