Experimental Investigation of Mechanical Properties of Impact Modified Polyvinyl Chloride-Fly Ash Composites

Abstract

The mechanical properties like tensile, pin bearing and impact properties have been studied for composites containing Fly Ash (FA) and Impact modifier (IM) in Polyvinyl Chloride (PVC) for furniture and pipe applications. Pin-bearing test is an important tool to evaluate the ability of the material to retain fasteners and the ability of the material to sustain load during the service life. The present paper evaluates the effect of variation of FA and IM on the pin bearing strength, tensile strength, modulus elongation at break and impact strength. Scanning electron microtopography indicates that the impact modifier forms a co-continuous phase at 10% of IM in PVC. Increase in void content decreases impact strength and tensile strength. As void content increases moisture absorption also increases. The results of pin bearing tests were analogous to tensile test and correlate well. Results were in accordance with impact modification theory. Moisture absorption was studied keeping in view outdoor applications.

Glass bead effects on tribological and mechanical properties of plasticized polyvinyl chloride cable used in vehicles as a filler

“…They reported that FA fillers with smaller particles result in better interfacial interaction and improved properties. In their other studies, 14,18,19 they observed that mechanical strength, stiffness, viscoelastic, and thermal properties increased with the addition of FA fillers into the PVC polymer matrix. Islam et al 21 studied the electrical and tensile behavior of CB reinforced PVC conductive composites.…”

“…12,13 However, the mechanical properties are actually lower than desired. 14,15 In addition, fillers such as talc, fly ash (FA), carbon black (CB), and titanium dioxide are generally used in PVC polymer applications as well. Many studies have attempted to improve the mechanical properties and toughness of PVC polymers by the addition of calcium carbonate, 2,3,7,12,13 talc, 16,17 FA, 14,[18][19][20] CB, [21][22][23] titanium dioxide, 24 silicone dioxide, 25 and glass beads (GBs) [26][27][28] fillers.…”

“…14,15 In addition, fillers such as talc, fly ash (FA), carbon black (CB), and titanium dioxide are generally used in PVC polymer applications as well. Many studies have attempted to improve the mechanical properties and toughness of PVC polymers by the addition of calcium carbonate, 2,3,7,12,13 talc, 16,17 FA, 14,[18][19][20] CB, [21][22][23] titanium dioxide, 24 silicone dioxide, 25 and glass beads (GBs) [26][27][28] fillers. Gohatre et al 18 studied the effect of silane-treated FA fillers on the physicomechanical, thermal, and morphological properties of recycled PVC composites.…”