A Comparative Study on Structural, Morphological, and Tensile Properties of Binary and Ternary Epoxy Resin‐Based Polymer Nanocomposites

Abstract

In the present work, epoxy resin-based nanocomposites (NCPs) were fabricated with improved mechanical properties. The epoxy resin (EPR) was mixed with differing amounts of calcium titanate (CaTiO3) nanoparticles (NPs) and glass fiber. The results showed that the ternary system contained glass fiber exhibits low mechanical performance compared to binary [EPR:CaTiO3] system. The effect of fiber glass and NPs on the epoxy resin mechanical behavior was determined by conducting a tensile test for various specimen sets. From the mechanical characterizations, it was seen that there is a monotonic relationship between the NPs concentration and Young’s modulus. Additionally, NCPs samples were brittle in nature and the strain rate significantly decreased upon the addition of CaTiO3 concentration; while the tensile strength was increased. From the X-ray diffraction evaluation, it can be concluded that the addition of NPs have a great impact on the epoxy structure. Besides, the morphology appearance was in good agreement with structural and mechanical analysis.

Enhanced Mechanical and Microstructural Properties of Portland Cement Composites Modified with Submicron Metakaolin

“…However, no obvious submicron SiO 2 [27] and submicron aluminosilicate were found in sample NB3 at a curing period of 28 days. erefore, we could infer that, at a curing period of less than 3 days, the SMK adhered to the HCS without an obvious pozzolanic effect [20], while when the CH crystal content of the HCS reached a certain concentration during a curing period of 3-28 days, the pozzolanic effect of the SMK gradually appeared [19]. To sum up, the pozzolanic effect of the SMK became noticeable when the concentration of the CH crystals reached a certain level.…”

“…In the past 20 years, nanomaterials, or rather particles with a diameter of smaller than 100 nm [18,19], have been studied in depth, especially for the improvement to cement and concrete products. Many studies have found that the addition of nanomaterials has a positive effect on the properties of concrete.…”

“…Due to the complex process and the high cost of production of nanomaterials, when they replace cement at a significant proportion, the cost of construction will greatly increase [19,31,32]. erefore, although nanomaterials have the great ability to improve concrete, they cannot be widely used in practical engineering applications.…”

Preparation and non-isothermal cure kinetics study of epoxy resin nanocomposites with amine and epoxy functionalized magnetic nanoparticles

“…Diglycidyl ether of bisphenol-A (DGEBA), (average M n ¼ 377, epoxide equivalent 188.5, clear liquid, viscosity (at 25 � C) 100-150 poise, density 1.16 g/mL (at 25 � C)), was obtained from Sigma-Aldrich Chemical Co. 4…”

“…To overcome this limitation, many researchers have suggested using composite instead of cured epoxy resin. Much research has been devoted to the preparation of epoxy resin nanocomposites to reinforce epoxy matrices using nanomaterials including metal oxide nanoparticles (NPs), 3,4 nano-silica, [5][6][7] nano-clay, 8 carbon nanotube, 9 graphene, 10 graphene oxide (GO), 11 and materials containing three different types of carbon nano-fillers. 12 The incorporation of NPs into polymer matrixes provides materials that could be used in many highperformance engineering applications.…”