Surface Modification and Its Effect on Interfacial Properties

Effect of nanoclay‐cellulose adhesive bonding and hybrid glass and flax fiber face sheets on flax fiber honeycomb panels

“…During alkaline treatment, hydrogen bonds in the fiber were broken down and wax, lignin and oils were removed from the fiber surface. [ 4 ] The fibers were then ground up, and the final mass measured 10.8 g. Sodium hypochlorite (NaOCl) was used at a 3.5% ratio to form a bleaching solution. Approximately 17.5 mL of NaOCl was added to 500 mL of water forming the bleach solution.…”

“…[ 1 ] Studies have explored utilizing natural fibers in the fabrication of honeycomb structures, which mainly focused on short fibers and basic shapes. [ 2,3 ] Natural fiber composites hereditably perform poorly in the presence of moisture, [ 4 ] affecting the morphology of the natural fiber, [ 5 ] crack propagation, [ 6 ] and sliding surface reaction. [ 6 ] Developing green composites from natural fibers reduces dependence on petroleum and creates potential income for farmers.…”

Development of epoxy-based sandwich composite panel with hollow glass microspheres/clay hybrid core and banana fiber facesheet for structural applications

“…Studies have confirmed that using flax fibers as a facesheet of sandwich structures can enhance their flexural properties, the results reported contribute to the sustainability of sandwich composites with the usage of natural fibers [ 20 ]. Also, Wagas et al hybridized kenaf and flax fiber as facesheet of sandwich composite structures and studied their impact behavior and it was discovered from their findings that the hybridized facesheet enhanced better energy absorption rate than the glass fiber facesheet [ 21 ].Benjamin et al [ 22 ]also studied the flexural behavior of sandwich structures made with hemp fiber facesheet to bending stress and it was reported from their findings that facesheet made with hemp fibers can enhance the bending strength of sandwich panel [ 22 ].Natural fiber composites hereditably perform poorly in the presence of moisture [ 23 ], affecting the morphology of the natural fiber [ 24 ], crack propagation [ 25 ], and sliding surface reaction [ 25 ].Even with these natural fiber benefits, manufacturing polymer composites with natural fibers is significantly hampered by the incompatibility of the polymer matrix and fiber surface [ 26 ]. However, natural fibers can undergo chemical treatment to change the network structure by breaking hydrogen bonds and roughening the surface.…”