Long term accelerated influence on thermo-mechanical properties of glass/carbon fiber reinforced interpenetrating polymer network hybrid composites

Abstract

The prime importance of this work is that to compare the influence of hygrothermal analysis on the physical properties of different variant of interpenetrating polymer network (IPN) blend reinforced with E-Glass/Carbon and combination of both (hybrid) fibers. In this study, combinations of epoxy (EP)/polyurethane (PU), vinyl ester (VER)/polyurethane (PU), and epoxy (EP)/vinyl ester (VER) have been taken as the matrix material (IPN) to reinforce the glass, carbon, and combination of both fibers. Moreover, prepared specimens are subjected with boiling water immersion test by maintaining the temperature of 45°C, 55°C, and 65°C in order to thoroughly understand the influence of moisture absorption and temperature in their physical attribution as per ASTM standards. Besides, to better understand the thermal stability and compatibility, thermal-gravimetric (TGA) analysis and burn-off test were conducted as well. During this study, it was found that, combination of VER/PU possesses the high moisture absorption resistance amongst all variants (0.725% for 45°C, 0.854% for 55°C, 1.234 for 65°C). Similarly, epoxy/vinyl ester reinforced glass fiber IPN laminate (EVG) has shown notable TGA value as 418.6°C, as well burn-off test also shown that hybrid IPN composites have better wettability (less void presence) than all other laminates (EPGC-0.9%, VPGC-0.89%, EVGC-0.92%). Further, losses of physical strengths have been noticed on all specimens upon subjection on hygrothermal environment irrespective of IPN blend and fiber constituents.

Understanding the role of ZnO as activator in SBR vulcanizates: Performance evaluation with active, nano, and functionalized ZnO

“…Thermogravimetric analysis is performed to determine a composite thermal behavior, and it monitors the weight loss of the substance with temperature variation. 55 Analysis of each batch's mechanical, physical, and cure characteristics revealed that A2SBR, N1.5SBR, and F2SBR produced results comparable to or even better than those of the C5SBR batch while exhibiting lower phr. These batches were chosen for additional characterizations.…”

Effect of hygrothermal aging on novel hybrid composites: Transforming textile waste into a valuable product

“…Micrographic images clearly illustrated that dry specimens had shown better interaction between the fiber, particulate, and matrix as well as various proportionate of particulate loading of graphene oxide significantly increases bonding between the fiber and matrix, in turn, increases the strength of the laminate in predominant level, this was observed in all the physical property analysis. 46 Further, graphene oxide enhances the better interaction between the fiber and matrix which was observed in all the micrographic images (A, D, G, J, M). Whereas the higher amount of addition of graphene oxide like 9% GO loosens its strength due to the agglomeration effect, this was very clearly seen in the images of P, Q, R, irrespective of the hygrothermic environment.…”

“…Apart from that, fiber pull‐out was commonly noticed in all the specimens. Micrographic images clearly illustrated that dry specimens had shown better interaction between the fiber, particulate, and matrix as well as various proportionate of particulate loading of graphene oxide significantly increases bonding between the fiber and matrix, in turn, increases the strength of the laminate in predominant level, this was observed in all the physical property analysis 46 . Further, graphene oxide enhances the better interaction between the fiber and matrix which was observed in all the micrographic images (A, D, G, J, M).…”

Analyzing the Tribological Behavior of Titanium Dioxide (TiO2) Particulate Filled Jute Fiber Reinforced Interpenetrating Polymer Network (IPNs) Composite by using Taguchi Optimization Technique

“…However, impact of design parameters and their interactions like SWR and CoF of the IPN composites are also found by using the analysis of variance (ANOVA). Apart from that, to wear surface evaluation was also done with help of the scanning electron microscope to better understand the micro mechanism between the constituents [17].…”