Document Type

Article

Publication Date

4-17-2024

Abstract

The production of ecologically friendly items from renewable feedstock is essential to lessening the demand for non-renewable resources like petroleum-based products. High-performance polymers are formed in large part by plant oils. Still, adjustments are necessary for improved performance. Making polymers from renewable and environmentally friendly materials such as epoxidized plant oils (EPOs) is one way to attain sustainable development in the materials industry. To improve the qualities of EPO-based polymers, crosslinking agents comprising large concentrations of functional groups can be employed in polymers. In this work, highly branching and flexible polyamine was crosslinked with epoxidized soybean oil (ESO) using ring-opening and amidation polymerizations, yielding a unique resin with novel characteristics and a wide range of potential applications. ESO was used in this work to create a matching polymer through a deamination reaction with aliphatic amines like ethylene, butane, and pentane diamine at 195 °C while ammonium chloride was present as a catalyst. Solvent-free procedures that don't need purification or premodifications are among their benefits. This was an easy-to-use and environmentally friendly method. With a steel metal bonding strength of 1996 kPa, MPD-ESO remained the strongest structural adhesive among the synthetic resins even after curing. Steel is always superior, no matter what the temperature. According to strength measurements using MED-ESO resin, steel has a lap shear strength of roughly 300 kPa at 100°C, which is significantly higher than that of copper and aluminium. This figure rises by an additional 750 kPa at 180°C. At 180 °C, the shear strength of MPD-ESO resin is 1996 kPa, whereas that of MBD-ESO resin is only 1220 kPa. The goal of this investigation on increasing chain length was to ascertain how the resin's mechanical and thermal properties changed. TGA verifies that as chain length increases, T5%, T10%, and Tmax temperatures rise as well. As we proceed from ethylene diamines to pentane diamines, steel bonding strength likewise rises.

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