Effect of TETA microcapsules on self-healing ability of dual component epoxy system
Department of Mechanical Engineering, National Institute of Technology Silchar, Silchar 788010, Assam, India
Adv. Mater. Lett., 2016, 7 (10), pp 836-843
DOI: 10.5185/amlett.2016.6213
Publication Date (Web): Aug 01, 2016
Copyright © IAAM-VBRI Press
E-mail:shalder@nits.ac.in
To deliver epoxy composites with enhanced self-healing ability, this study investigates healing efficiency of dual component epoxy system consisting of microcapsules containing epoxy (DGEBA) and different variants of hardener (TETA) microcapsules. Morphological investigation under FESEM confirms formation of spherical shaped intact TETA microcapsules at high agitation speed with average size of the ~65.32 µm and reduced wall thickness of ~1.823 µm. Reaction temperature is found to play significant role to tune the roughness of the microcapsule surfaces. The single edge notched bending (SENB) test was performed to evaluate the healing ability. It was found that with incorporation of microcapsules, the fracture toughness decreases but the healing efficiency increases with increase in content of microcapsules. The maximum healing efficiency observed was 65.61%. High concentration of TETA microcapsule (prepared at high agitation speed) in epoxy network gives the essence for their applicability as a potential ingredient to elevate the healing efficiency. To enhance the healing ability further of the composites as well as fibre reinforced composites with unaltered mechanical properties we believe synthesis nanocapsules and their incorporation could have significant impact.
Smart polymers, self-healing composites, solvent evaporation technique, microcapsule, single edge notched bending test.
Advanced Materials Research and Innovation Priorities for Accomplishing the Sustainable Development Goals
Contemporary Advances in Humidity Sensing Materials, Methods, and Performances
Roles of the Debye Length and Skin Depth in the Characterization of Space Charge Interactions in Semiconductor Nanoparticles
Antifungal Activity of Iron-gold and Cobalt-gold co-doped ZnO Nanoparticles
Adsorption and Thermodynamic Parameters of Activated Carbon-Diazepam Systems in Simulated Gastric Fluid
Synthesis, Impedance and Current-Voltage Spectroscopic Characterization of Novel Gadolinium Titanate Nano Structures
Removal of Toxic Dyes from Industrial Waste Water using Chitosan Grafted Itaconic Acid Nanocomposites
Structural, Optical and dielectric properties of Sr doped LaVO4
Design, 3D Development and Finite Element Analysis of Cylindrical Mesh Cage Bioimplants from Biometals
Advancements in Materials Technology for Accomplishing Sustainable Development Goals
A Review for Luminescence Property of Materials, Its Detection and Probabilities for Embedding of Luminescence with MEMS Technology
A Review on Low-Cost Adsorbents for Cadmium Pollutant Removal from Industrial Effluents
Study of Applications of Radial Basis Function Network in Forecasting
Simulation of LPG Pressure Vessel under Fire Engulfment
Strength Analysis of Friction Stir Welding (FSW) Joint Under Minimize Rotation Speed of FSW Tool
Formation of Pure In2O3 pallets for OLED Application
Study of Soil Nitrogen Level and Splitting on Nutrient Uptake around the Industries of Chhattisgarh, India