Improving the mechanical and thermal properties of chlorinated poly(vinyl chloride) by incorporating modified CaCO$_{3}$ nanoparticles as a filler

Authors : Abou Elfettouh Abd El Moneim Abd ELHAKIM, Ahmed Abd Allah HAROUN, Abdelgawad Mohamed RABIE, Gomaa Abdelgawad Mohammed ALI, Mohamed Yahia Marei ABDELRAHIM

Pages : 750-759

View : 14 | Download : 7

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Chlorinated polyinsert ignore into journalissuearticles values(vinyl chloride); insert ignore into journalissuearticles values(CPVC);/calcium carbonate nanocomposites were successfully prepared by the incorporation of calcium carbonate insert ignore into journalissuearticles values(CaCO$_{3});$ nanoparticles into the CPVC matrix. The compatibility between the two phases was obtained by surface modification of the CaCO$_{3}$ nanoparticles with stearic acid, leading to improved material performance. The effects of the addition of different amounts of CaCO$_{3}$ nanoparticles to the CPVC on the thermal, mechanical, and morphological characteristics of the CPVC/CaCO$_{3}$ nanocomposites were investigated. The thermal stability of the CPVC/CaCO$_{3}$ nanocomposites was evaluated by thermogravimetric analysis~and differential scanning calorimetry. In addition, the surface texture of the CPVC and the dispersion of the CaCO$_{3}$ were evaluated using scanning electron microscopy. Important enhancements in the thermal and mechanical properties of the modified CPVC/CaCO$_{3}$ nanocomposites were obtained by incorporating different amounts insert ignore into journalissuearticles values(2.00%, 3.75%, and 5.75%); of surface-modified CaCO$_{3}$ nanoparticles within the CPVC polymer matrix. The results reveal that 3.75% of CaCO$_{3}$ was the optimum amount, where the CPVC/CaCO$_{3}$ nanocomposite shows the highest impact strength, the highest tensile strength, the highest thermal stability, and the lowest elongation percentage$. $Replacement of the commercial impact modifier used in industry with the prepared surface-modified CaCO$_{3}$ nanoparticles for the development of CPVC was successfully achieved.
Keywords : Chlorinated poly vinyl chloride, CaCO 3 nanoparticles, nanocomposites, mechanical properties, thermal properties