Integration of biobased functionalized feedstock and plastisol in epoxy resin matrix toward developing structural jute biocomposites with enhanced impact strength and moisture resistance properties

Abstract

Epoxy resin matrix based on diglycidyl ether of bisphenol A (DGEBA) was modified with addition of epoxidized soybean oil (ESBO). Structural jute composites prepared with ESBO modified DGEBA resin showed a decrease in tensile strengths, owing to reduced cross linking density. Percentage elongation of the samples increased with addition of ESBO. An optimized composition was identified, at which the composite showed increase in tensile strength, modulus and elongation. Interestingly, impact strengths increased initially with incorporation of ESBO, but with further increase in ESBO, impact strengths decreased. Structural Jute composites were also prepared by incorporating polyvinyl (chloride) (PVC) plastisol into the modified matrix which showed an increase in both tensile and impact strengths. Fourier transform infrared spectroscopy (FT-IR) analysis indicated the curing state of the composites. The spectrum peaks became increasingly stronger in the OAH band with increasing ESBO quantities. This could be attributed to the hydrophilic nature of ESBO, a result that was well supported by the moisture absorption test. Although, water uptake capacity of ESBO/DGEBA modified matrix composites recorded increasing trend with increased ESBO content, with inclusion of plastisol, the water uptake values dropped. Composite with DGEBA/ESBO/ plastisol modified matrix actually recorded water uptake capacity comparable to composite with neat DGEBA, possibly owing to improved interfacial adhesion and hydrophobic nature of PVC plastisol. POLYM. COMPOS., 37:391-397,

Bio-Based Epoxy Resin from Epoxidized Soybean Oil

“…The curing processes of ESO or the mixture of ESO and commercial epoxy resin have been investigated, and some of these systems have been made into composites through adding fibers [10][11][12]14], clay [16,18] and other reinforcement [19]. Viscoelastic properties, mechanical properties and many other analyses have been studied to evaluate their applicability to be used in industry.…”

Marble waste reinforced composite with tunable physico-mechanical and thermal properties: micromechanical simulation assisted experimental investigation

“…It has been observed that the mechanical and thermal properties of composites are significantly improved with the addition of waste marble dust [20][21][22]. Noticeably, polymers composites, widely used in mechanical [23][24][25][26][27][28][29][30], automobile [31], aerospace [32], electronics [33], marine [34], and biomedical engineering [35][36][37][38][39], have reportedly limited utilisation as building materials in civil engineering. Moreover, there have been limited attempts on using thermosetting polymers as a 'matrix' with waste marble particulates as filler in civil engineering applications, resulting in a limited assessment of such thermosetting polymer matrix reinforced composites in the light of detailed structure-property correlation.…”

Reinforcement of bio‐based network polymer with wine pomace

“…Nowadays lignocellulose nanofibers (LCNFs) gain much attention as reinforcement materials for polymers due to strong and light properties 10‐15 . Preparation of LCNFs has been developed using mechanical and chemical fibrillation methods.…”

“…Nowadays lignocellulose nanofibers (LCNFs) gain much attention as reinforcement materials for polymers due to strong and light properties. [10][11][12][13][14][15] Preparation of LCNFs has been developed using mechanical and chemical fibrillation methods. Mechanical fibrillation is an environment-friendly process while the chemical process produces a large amount of wastewater.…”