Cam Elyaf Takviyeli Poli-amit 6 Kompozitler ile Poliamit-6 Polimerinin %30 Cam Elyaf Takviyeli Poli-amit 6 Kompozitine Karşı Aşınma ve Sürtünme Davranışları

Öz

Bu çalışmada, katkısız poli-amit polimeri ile ağırlık olarak farklı oranlarda (%10-%20-%30) kısa cam elyaf (CE) takviyeli poli-amit kompozitlerin aşınma ve sürtünme davranışları incelenmiştir. Aşınma deneyleri %30 kısa cam elyaf takviyeli poli-amit 6 (PA6+%30CE) kompozit diske karşı kuru ortam şartları altında gerçekleştirilmiştir. Cam elyaf takviyeli PA6 esaslı kompozitler önce ikiz vidalı bir ekstruderde granül formunda üretilmiş ardından enjeksiyon makinasında aşınma test numuneleri basılmıştır. Aşınma testleri 0,5 m/s kayma hızı, 20-30-40 N yükte ve 1500 m kayma mesafesinde yapılmıştır. Deneyler, pim-disk aşınma test cihazı kullanılarak ortam sıcaklığında gerçekleştirilmiştir. Deneyler sonucunda, katkısız PA6 polimerinin sürtünme katsayısı ve aşınma oranı uygulanan yük ile artış göstermiştir. Kısa CE takviyeli PA6 kompozitlerin sürtünme katsayısı da artarken aşınma oranında ise pek artış gözlenmemiştir. En düşük sürtünme katsayısı ve aşınma oranı %30 CE takviyeli PA6 kompozitinde elde edilmiştir. PA6 polimerine %30 oranında CE takviyesi ile kompozitin aşınma direnci katkısız PA6 polimerine göre en az %48 oranında artmıştır.

Anahtar Kelimeler

• Poli-amit
• Cam fiber
• Aşınma
• Sürtünme

Wear and Friction Behaviour of Glass Fiber Reinforced Polyamide 6 Composites and Polyamide-6 Polymer against 30% Glass Fiber Reinforced Polyamide 6 Composite

Öz

In this study, the wear and friction behaviors of unfilled poly-amide polymer and short glass fiber (GF) reinforced polyamide composites with different weight ratios (10%-20%-30%) were investigated. Wear tests were carried out under dry conditions against a 30% short glass fiber reinforced polyamide 6 (PA6+30%GF) composite disc. Glass fiber reinforced PA6 based composites were first produced in granule form in a twin screw extruder and then wear test specimens were molded in an injection molding machine. Wear tests were carried out under 20 N, 30 N and 40 N loads at a sliding speed of 0,5 m/s and sliding distance of 1500 m. The tests were carried out at ambient temperature using a pin-disc wear tester. As a result of the experiments, the friction coefficient and wear rate of the unfilled PA6 polymer increased with the applied load. The coefficient of friction of short GF reinforced PA6 composites also increased, while the wear rate did not increase much. The lowest coefficient of friction and wear rate were obtained in PA6 composite with 30% GF reinforcement. With 30% GF reinforcement of polyamide polymer, the wear resistance of the composite increased by at least 48% compared to the unfilled PA6 polymer.

Anahtar Kelimeler

• Poly-amide
• Glass fiber
• Wear
• Friction

Kaynakça

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