Synthesis of biobased epoxy resins effect of modification of castor oil and incorporation of carbon fiber on mechanical thermal viscoelastic properties and morphological behaviour of the composites

Abstract

Nowadays polymers developed from natural resources have newlinebecome progressively important as eco-friendly and sustainable products can newlinereplace the products developed from petro-based products. The main newlineobjective of this current study was to develop biobased epoxy system using newlinemodified castor oil and reinforcing it with carbon fiber. The use of carbon newlinefibers in composites applications lies in its high strength, high modulus, light newlineweight, etc. The biobased epoxy system were synthesized from Diglycidyl newlineEther of Bisphenol A (DGEBA) and modified castor oils such as Epoxidized newlineCastor Oil (ECO), Transesterified Epoxidized Castor Oil (TECO) and newlineAcrylated Epoxidized Castor Oil (AECO). In this study, the partial portion of newlinepetroleum based epoxy was replaced by ECO, TECO and AECO.The main objective of the study is the modification of Castor Oil like ECO, TECO and AECO using different chemical modification newlinetechniques such as epoxidation, transesterification and acrylation, newlinerespectively. The ECO, TECO and AECO were used as a reactive diluents to newlineimprove the toughening properties of the diglycidyl ether of bisphenol A newline(DGEBA) epoxy system. The other objectives of this work are preparation of newlinebiobased epoxy blends and composites from DGEBA with different modified newlinecastor oils (ECO, TECO and AECO) and Carbon Fiber (CF) in presence of newlineTriethylenetetramine (TETA) curing agent. The present work has been newlinegenerally classified into three phases: newline newline