Fabrication and Characterization of Polypropylene/Natural Inorganic Composite Materials

• Main Authors: Yu-Jun Peng, 彭鈺鈞
• Other Authors: Maw-Cherng Suen
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/14707554744260580695

碩士 === 桃園創新技術學院 === 應用科技研究所 === 103 === In this study, there are two inorganic materials (Oyster shell powder (OS) and Nano-silver carbon black (AgC) ) as additive for polypropylene (PP) and modified polypropylene (MPP). With varies inorganic materials content to prepare four composites: PP/OS, MPP/OS, PP/AgC and MPP/AgC. To discuss the thermo-stability, mechanical property, compatibility of different inorganic content in PP and MPP, energy dispersive spectrometer (EDS), X-ray diffraction (XRD) was used to observe the element and structure of composites. Thermogravimetric analyzer (TGA) was use to analyze weight loss and degradation temperature. Differencial scanning calorimeter (DSC) was used to analyze endothermic melting peak. The results from universal testing machine (UTM), the addition of 0.5% OS could improve the tensile strength of the PP/OS and MPP/OS. Then the tensile strength of the PP/OS and MPP/OS decreased with increasing of OS content from 0.75 to 10%. It is due to the incompatibility when OS content is too much.With AgC mixed in, you can enhance its tensile strength, when AgC content increased from 0% to 1%, its tensile strength increased significantly. From the result of TGA, the degradation temperature of the PP/OS and MPP/OS approach to maximum while the addition of OS is at 0.5%. Moreover, the degradation temperature of the PP/AgC and MPP/AgC increase significantly with increasing of AgC content. DSC indicates the only one endothermic melting peak for PP and MPP, There are two endothermic melting peak after inorganic materials were added to PP and MPP. The intensity of higher endothermic melting peak for PP and MPP gradually disappeared with increasing OS and AgC content, Scanning Electron Microscope (SEM) and Fourier Transform Infrared Spectroscopy (FT-IR) were used to observe and analyze the section morphology and chemical structure of four composites.