Obtaining and Characterization of Polyolefin-Filled Calcium Carbonate Composites Modified with Stearic Acid

International Conference on Innovative Research - ICIR Euroinvent 2017

Croitoru, C.^1 ; Pascu, A.^1 ; Roata, I.C.^1 ; Stanciu, E.M.^1

Materials Engineering and Welding Department, Transilvania University of Brasov, Eroilor 29 Str., Brasov

500039, Romania^1

关键词: Amorphous calcium carbonate;    Calcium carbonate composites;    Dispersibilities;    FTIR spectroscopy;    Hydrophobic polymers;    Intermediate layers;    Structural information;    Surface coatings;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/209/1/012041/pdf
DOI  :  10.1088/1757-899X/209/1/012041

来源: IOP

【 摘 要 】

In order to obtain high performance calcium carbonate-reinforced HDPE and PP composites, the dispersibility and compatibility of the inorganic phase in the polymer has been achieved through surface treatment of the amorphous calcium carbonate filler with stearic acid. The surface coating of the inorganic phase has been proved by XRD and FTIR spectroscopy, through forming of an intermediate layer of calcium stearate which acts as a surfactant, efficient in providing an optimum compatibility with the dominatingly hydrophobic polymer matrix, as determined from the structural information obtained through samples cross-sections analysing.