ÇOK DUVARLI KARBON NANOTÜP KATKILI POLİPROPİLEN NANOKOMPOZİTLERİN KURU SÜRTÜNME VE AŞINMA ÖZELLİKLERİ ÜZERİNE YÜK VE KAYMA HIZININ ETKİLERİNİN İNCELENMESİ

• Main Author: Salih Hakan YETGİN
• Format: Article
• Language: English
• Published: Eskişehir Osmangazi University 2020-08-01
• Series: Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi
• Subjects: polypropylene; carbon nanotube; wear; friction
• Online Access: https://dergipark.org.tr/tr/download/article-file/1260165

n this study, tribologicalproperties of 0.1%, 0.2%, 0.3%, 1%and 2% by weight multi walled carbon nanotube (MWCNT) filled polypropylene (PP) nanocomposites without using a compatibilizer were investigated.PP nanocomposites were produced with two-step melting process. In the first step, PP nanocomposite pellets were prepared by using a co-rotating twin-screw extruder. The extrudates were cooled down quickly and pelletized. In the second step, nanocomposite pellets were molded to produce tribological test samples by using an injection molding machine. The wear and friction behaviourof MWCNT filled PP nanocomposites were performed at 0.8, 1.2 and 1.6 m/s sliding speed and 10, 20, 30 and 40N loadunder dry environment conditions by using pin-on-disc system. The lowest coefficient of friction was obtained for2MWCNT composite with a value of 0.393 at 0.80 m/s sliding speed and 10N load. The wear rate of PP polymer decreased with increasing MWCNTamount. The wear strengthof 0.1MWCNT, 0.2MWCNT, 0.3MWCNT, 1MWCNT and 2MWCNT nanocomposites are, respectively, 18%, 31%, 50%, 94% and 233% higher than those of pure PP composites.