Modification of the Epoxy Resin Mechanical and Thermal Properties with Silicon Acrylate and Montmorillonite Nanoparticles

Abstract

In this study we have investigated the effect of montmorillonite with alkyl quaternary ammonium salt that had been doped into the silicon acrylate (AC-Si)/ Epoxy Cresol Novolac (ECN)/ montmorillonite nano composites on structural, mechanical and thermal properties of composite samples. Moreover the effect of increase in weight percentages of fillers at 0.01, 0.02, 0.03 and 0.04 wt% on the amount of Impact and flexural strength had been investigated. Also impact and flexural strength were performed on two different systems namely (a) ECN filled nanoclay and (b) AC-Si ECN filled with nano montmorillonite as a function of clay respectively. By increase in the weight percentage of filler in the context of matrix up to the 0.03 wt%, the amount of flexural and impact strength were increased but by adding filler more that 0.03 wt%, the amount of flexural and impact strength will decrease. The resulting nanocomposites have optimal mechanical properties at 0.03 wt% montmorillonite content. Addition of The AC-Si will increase the interlamellar distance due to better dispersion of the clay within the matrix. Cross section of fracture surfaces that had been shown by SEM micrographs, specifies that, increase in viscosity had caused due to aggregation that is the main cause of fluctuation in samples properties.

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

“…Considering this, the composites can have better strength as the elastic deformation region is exceeded by the applied load since the load transfer is improved with the dispersed NPs [26]. ere is an extension in the primary epoxy resin peaks with the increase in CaTiO 3 concentration (see the XRD results, Figure 3), i.e., the d-spacing can be increased with the polymer chains' galleries experiencing NPs diffusion [27,28].…”

Effect of Silica Nanoparticles on Activation Energy of Phenol Novolac Epoxy Resin/Unsaturated Polyester at Various Temperatures

“…These effective materials have been widely used in variety of applications in various fields including surface coating, aerospace and marine industries and reinforcement of composites, etc., due to their perfect mechanical, thermal, chemical and adhesive properties. In this regard, some applicable polymeric-based materials, such as phenol novolac epoxy resin modified with unsaturated polyester (PNE/UPS) [1], linear lowdensity-polyethylene (LLDPE) [2], epoxy resin [3][4][5][6][7][8], cresol novolac epoxy resin modified with unsaturated polyester (CNP/UPS) [9] and polyethylene terephthalate (PET) [10] were widely used. However, these polymeric matrices are suffering from some serious disadvantages, which among them we can refer to poor resistance to crack propagation, brittleness and low wear resistance [11][12][13][14][15].…”

“…However, these polymeric matrices are suffering from some serious disadvantages, which among them we can refer to poor resistance to crack propagation, brittleness and low wear resistance [11][12][13][14][15]. In order to overcome these kinds of problems, various additives were added to the polymeric system, among which silica nanoparticles showed significant improvement in the mechanical and electrical properties of modified nanocomposites [3,4,9].…”

Silica Nanoparticles/Phenol Novalac Epoxy Resin Nanocomposites via Vacuum Shock Technique: Effect of Silica Nanoparticles on Curing Kinetic

“…Reinforced polymeric nanocomposites have attracted considerable attanetion due to their selective applications. Among these reinforced polymeric matrices we can refer to the phenol novolac epoxy resin modified with unsaturated polyester (PNE/UPS) 1 , linear low-density-polyethylene (LLDPE) 2 , epoxy resin [3][4][5][6][7][8] , cresol novolac epoxy resin modified with unsaturated polyester (CNP/UPS) 9 and polyethylene terephthalate (PET) 10 .Phenol based resins which can be classified in thermoset group, have a wide range of applications in production of nanocomposites for different purposes. Despite of that, phenol based resins creation is due to aggregation compaction of phenols and aldehydes like formaldehyde and elimination of water sidelong group branch.…”

“…By usage of this method the overall amount of bubbles can be reduced more than 98% and homogenous composite structure reinforced with desirable fillers can be obtained [6]. Besides, addition of silica nanoparticles to epoxy based resins can either improve their mechanical or thermal properties [2,3] and studying the curing kinetic of epoxy based resins with presence of silica nanoparticles can be a great benefit for scientific research in matter of composites enhancement.In this study, by usage of vacuum shock technique [6] nanoparticles were manufactured and by usage of DSC analysis, required thermal data for simulation of curing kinetic were obtained. Besides, by usage of phenomenological models, effect of silica nanoparticles on the curing kinetic of phenol novalac epoxy resin was obtained.…”