Covalent sizing surface modification as a route to improved interfacial adhesion in carbon fibre-epoxy composites

Carbonaceous Materials Coated Carbon Fibre Reinforced Polymer Matrix Composites

“…CF reinforced thermoset composites have been broadly incorporated in numerous advanced technological fields that include wind power, aerospace, and transportation. in current decades [ 141 , 142 , 143 , 144 , 145 , 146 , 147 , 148 , 149 ]. These thermosetting resin matrix composites are categorized by their specific strength and stiffness, stability of the geometry, and designability.…”

Environmental friendly exploration of cinnamon bark ( Cinnamomum verum ) based yellow natural dye for green coloration of bio‐mordanted wool fabric

“…Scientists are using several methods to overcome these limitations 13 . Modern methods such as microwave, 14 ultrasound, 15–17 ultraviolet radiation, 18,19 plasma radiation, 20,21 gamma radiation, 22,23 and so forth are now being employed due to their fast treatment nature.…”

“…11,12 Scientists are using several methods to overcome these limitations. 13 Modern methods such as microwave, 14 ultrasound, [15][16][17] ultraviolet radiation, 18,19 plasma radiation, 20,21 gamma radiation, 22,23 and so forth are now being employed due to their fast treatment nature. Among these methods, the most efficient and effective technique for the extraction of natural dyes used is microwave radiation.…”

Electrografting and Langmuir–Blodgett: Covalently Bound Nanometer-Thick Ordered Films on Graphite

“…All these grafting reactions involve a radical as a key intermediate; this radical reacts with the surface but also with the first grafted layer, leading to surface-bonded oligomers. The possibility to control the thickness of the films permits different interesting applications; for example, thick layers are useful in carbon fiber–epoxy composites where they increase the interfacial shear strength, while monolayers are useful in biosensors and organic microelectronics …”

“…All these grafting reactions involve a radical as a key intermediate; this radical reacts with the surface but also with the first grafted layer, leading to surface-bonded oligomers. The possibility to control the thickness of the films permits different interesting applications; for example, thick layers are useful in carbon fiber−epoxy composites where they increase the interfacial shear strength, 36 while monolayers are useful in biosensors 37 and organic microelectronics. 38 Monolayers can be obtained using electrochemistry by controlling the operational parameters (reaction time, applied potential, and concentration) or by tuning the reactivity of the radical in different ways: (i) using steric effects [starting from sterically hindered diazonium salts with two 3,5 bis-t-butyl groups or a 4-(triisopropylsilyl) 39 group], (ii) using viscous ionic liquids that reduce the diffusion rates to the surface, 40 and (iii) using redox mediators that limit the concentration of radicals in the vicinity of the electrode.…”