OICC Press International Journal of Nano Dimension 2228-5059 10 2 2024 02 07 The mechanical and thermal properties of PE/CNC nanocomposite EN Jalal Heidarbeigi Department of Agricultural machinery, Science and Research branch, Islamic Azad University, Tehran, Iran. Ali Mohammad Borghei Department of Agricultural machinery, Science and Research branch, Islamic Azad University, Tehran, Iran. Hamed Afshari Department of Agricultural Machinery, Roudehen Branch, Islamic Azad University, Roudehen, Iran. Journal Article 2024 02 07 Polyethylene (PE) nanocomposites containing Cellulose Nano Crystal (CNC) were prepared via melt blending in a twin screw extruder. The evaluation of PE/CNC nanocomposites was studied for food packaging applications. The nanocomposites were investigated by thermal, mechanical analyses. Addition of CNC particle while having no effect on melting and crystallization temperature had intensive effect on the degree of crystallinity of the polyethylene. It is shown that due to the weak interfacial bonding between CNC and PE matrix, a decrease in yield stress and modulus of elasticity was observed for PE/CNC nanocomposites. According to the x-ray diffraction analyses, incorporation of the CNC into PE matrix induced a preferred crystalline orientation for PE crystallites.