عنوان المقالة:Improving the mechanical and thermal properties of chlorinated poly(vinyl chloride) by incorporating modified CaCO3 nanoparticles as a filler Improving the mechanical and thermal properties of chlorinated poly(vinyl chloride) by incorporating modified CaCO3 nanoparticles as a filler
ABOU ELFETTOUH ABD EL MONEIM ABD EL-HAKIM, AHMED ABD ALLAH HAROUN, ABDEL-GAWAD MOHAMED RABIE, GOMAA ABDELGAWAD MOHAMMED ALI, MOHAMED YAHIA MAREI ABDELRAHIM
English Authors
ABOU ELFETTOUH ABD EL MONEIM ABD EL-HAKIM, AHMED ABD ALLAH HAROUN, ABDEL-GAWAD MOHAMED RABIE, GOMAA ABDELGAWAD MOHAMMED ALI, MOHAMED YAHIA MAREI ABDELRAHIM
Abstract
Chlorinated poly(vinyl chloride) (CPVC)/calcium carbonate nanocomposites were successfully prepared by
the incorporation of calcium carbonate (CaCO3) nanoparticles into the CPVC matrix. The compatibility between the
two phases was obtained by surface modification of the CaCO3 nanoparticles with stearic acid, leading to improved
material performance. The effects of the addition of different amounts of CaCO3 nanoparticles to the CPVC on the
thermal, mechanical, and morphological characteristics of the CPVC/CaCO3 nanocomposites were investigated. The
thermal stability of the CPVC/CaCO3 nanocomposites was evaluated by thermogravimetric analysis and differential
scanning calorimetry. In addition, the surface texture of the CPVC and the dispersion of the CaCO3 were evaluated
using scanning electron microscopy. Important enhancements in the thermal and mechanical properties of the modified
CPVC/CaCO3 nanocomposites were obtained by incorporating different amounts (2.00%, 3.75%, and 5.75%) of surfacemodified CaCO3 nanoparticles within the CPVC polymer matrix. The results reveal that 3.75% of CaCO3 was the
optimum amount, where the CPVC/CaCO3 nanocomposite shows the highest impact strength, the highest tensile
strength, the highest thermal stability, and the lowest elongation percentage.Replacement of the commercial impact
modifier used in industry with the prepared surface-modified CaCO3 nanoparticles for the development of CPVC was
successfully achieved.
Abstract
Chlorinated poly(vinyl chloride) (CPVC)/calcium carbonate nanocomposites were successfully prepared by
the incorporation of calcium carbonate (CaCO3) nanoparticles into the CPVC matrix. The compatibility between the
two phases was obtained by surface modification of the CaCO3 nanoparticles with stearic acid, leading to improved
material performance. The effects of the addition of different amounts of CaCO3 nanoparticles to the CPVC on the
thermal, mechanical, and morphological characteristics of the CPVC/CaCO3 nanocomposites were investigated. The
thermal stability of the CPVC/CaCO3 nanocomposites was evaluated by thermogravimetric analysis and differential
scanning calorimetry. In addition, the surface texture of the CPVC and the dispersion of the CaCO3 were evaluated
using scanning electron microscopy. Important enhancements in the thermal and mechanical properties of the modified
CPVC/CaCO3 nanocomposites were obtained by incorporating different amounts (2.00%, 3.75%, and 5.75%) of surfacemodified CaCO3 nanoparticles within the CPVC polymer matrix. The results reveal that 3.75% of CaCO3 was the
optimum amount, where the CPVC/CaCO3 nanocomposite shows the highest impact strength, the highest tensile
strength, the highest thermal stability, and the lowest elongation percentage.Replacement of the commercial impact
modifier used in industry with the prepared surface-modified CaCO3 nanoparticles for the development of CPVC was
successfully achieved.
جمعه عبدالجواد محمد على | Gomaa A. M. Ali | 20598