MUZ VE PİRİNÇ KABUĞU TOZLARININ POLİPROPİLENİN FİZİKSEL, TERMAL VE TRİBOLOJİK ÖZELLİKLERİNE ETKİSİ

Öz

Son yıllarda, geleneksel seramik, metal ve polimerlerin yerini alabilecek üstün özelliklere sahip ve ekonomik açıdan avantajlı malzemelere yönelik ilgi önemli ölçüde artmıştır. Bu durum, malzeme bilimi ve mühendisliği alanındaki araştırmacıların dikkatlerini kompozit malzemelere yönlendirmesine neden olmuştur. Özellikle çevre dostu ve sürdürülebilir özelliklere sahip biyo-bazlı kompozitler, bu alandaki çalışmaların odak noktası haline gelmiştir. Bu araştırma çalışmasında, toz formda kullanılan muz kabuğu (MK) ve pirinç kabuğu (PK) oranlarının polimer kompozitler üzerindeki fiziksel, termal ve tribolojik etkileri incelenmiştir. Polimer kompozit üretiminde, atık kazanımına katkıda bulunması amacıyla geri dönüştürülmüş polipropilen (R-PP) tercih edilmiştir. Çalışma kapsamında yapılan deney sonuçları, organik atıkların R-PP’nin termal direncini artırdığını ortaya koymuştur. Ağırlıkça %30 konsantrasyonunda takviye ilavesiyle, ısıl çarpılma sıcaklığı (HDT) ve vicat yumuşama sıcaklığı sırasıyla %5 ve %4 oranında artış göstermiştir. MK/PK oranının artması yoğunluğu artırırken, aşınma oranının da artmasına neden olmuştur. Organik katkı maddelerinin yapısındaki hidrofilik bölgelerin nem çekme özelliği nedeniyle, maksimum takviye oranıyla polimer kompozitlerin nem emme oranı %36 artmıştır.

Anahtar Kelimeler

• Polipropilen
• Polimer Kompozit
• Muz Kabuğu
• Pirinç Kabuğu
• Organik Atık

THE EFFECT OF BANANA AND RICE HUSK POWDERS ON THE PHYSICAL, THERMAL, AND TRIBOLOGICAL PROPERTIES OF POLYPROPYLENE

Öz

In recent years, there has been a significant increase in interest in materials with superior properties and economic advantages that can replace traditional ceramics, metals, and polymers. This shift has led researchers in the field of materials science and engineering to focus on composite materials. Particularly, bio-based composites with environmentally friendly and sustainable attributes have become the focal point of studies in this domain. This research study investigated the effects of banana peel (BP) and rice husk (RH) powders, used in particulate form, on the physical, thermal, and tribological properties of polymer composites. Recycled polypropylene (R-PP) was chosen for the production of polymer composites due to its contribution to waste recovery. Experimental results indicated that organic waste materials enhance the thermal resistance of R-PP. With the addition of 30 wt% reinforcement, the heat deflection temperature (HDT) and Vicat softening temperature increased by 5% and 4%, respectively. An increase in the BP/RH ratio led to a higher density and an increase in wear rate. Due to the moisture-absorbing nature of the hydrophilic regions within the organic additives, the moisture absorption rate of the polymer composites increased by 36% at the maximum reinforcement level.

Anahtar Kelimeler

• Polypropylene
• Polymer Composite
• Banana Peel
• Rice Husk
• Natural Waste

Kaynakça

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