Influence of water absorption on glass fibre reinforced IPN composite pipes

Abstract

Glass fibre reinforced composite pipes were fabricated by using an IPN blend of 0%, 10%, 20%, 30%, 40%, 50% PU prepolymer (Polyurethane) with VER(Vinylester) resin. The prepared IPN (Interpenetrating polymer networks) composite pipes were subjected to boiling water immersion tests in order to study the effect of moisture absorption characteristics. The Burst strength and Hoop strength of water immersed specimens were evaluated (3, 6, 9, 12 months) and compared along with dry composite specimens. It was found that, percentage of moisture uptake was significantly reduced with increase in PU loading into the IPN system as well the Burst strength and Hoop strength of the specimens were found to be diminishing with raise in percentage of moisture uptake and raise in temperature; contrarily, the addition of PU significantly reduced the moisture intake, in addition to that the PU added IPN pipe offers better mechanical strength while compared with neat Vinylester pipes.

Synthetic glass and jute fabric reinforced soy-based biocomposites: Development and characterization

“…So, developed glass fabric-soy composites can find both inside and outside of the house applications. 18…”

“…So, developed glass fabric-soy composites can find both inside and outside of the house applications. 18 XRD and TEM analysis XRD of Cloisite 20A, GS3, and JS was carried out and their diffractograms are shown in Figure 8(a). For Cloisite 20A, a characteristic peak was obtained at around 3.72 with 2.46 nm basal spacing numerically equal to that of the reported value.…”

Investigation of TiO2 Nano Filler in Mechanical, Thermal Behaviour of Sisal/Jute Fiber Reinforced Interpenetrating Polymer Network (IPN) Composites

“…To overcome the issues encountered in each matrix, the concept of mixing the two different sets of monomers has been proposed by chemists in the name of interpenetrating polymer networks (IPNs). Numerous research activities are presently happening in these particular IPNs, in order to exactly use the final matrix material to the various industrial applications 20,21 . In addition to that, to further strengthen the laminates to the discrete level, at the present time, particulate fillers have made remarkable contributions.…”

Production and characterization of thin films based on soy protein isolate with kraft lignin and tannins obtained by casting

“…In addition to this raw material, the consequent interest in biomolecules such as lignin and tannins has been increasing, due to their biodegradability properties, renewable origin, industrial waste, market availability and low cost (Zhu et al, 2020;Gupta et al, 2020;Rajha et al, 2019). However, their commercial use is extremely limited, once such materials present mechanical, thermal and physicochemical properties that are not as good as those of products obtained from polymers derived from fossil sources (Cazón et al, 2017;Gopi et al, 2019). Despite their enormous potential, technologies that use lignin and/or tannins have not been completely developed, and the materials based on these biomolecules, especially residual lignin from the kraft process, and tannins from Stryphnodendron adstringens bark, have not been used to create products with high added value at industrial level (Sattler, 2019).…”