Evaluation of Mechanical and Interfacial Properties of Individual Lignin Carbon Fiber and Composites

摘要: Use of lignin as a precursor, instead PAN, for manufacturing carbon fiber shows promise in developing renewable and low-cost composites. The used this research was highly pure form based on the extraction process that implemented. Suitable procedures were developed to melt spun fibers which subsequently stabilized carbonized. resulting characterized determine mechanical interfacial properties single with future scale-up reinforced epoxy composite testing. Using VARTM, initial composites manufactured by authors. Mechanical testing performed using precise nanouniversal machine results interpreted Weibull statistical distribution. tensile resulted shape parameter 3.66 scale 630 MPa respectively. determined Single Fiber Fragmentation Testing custom apparatus. Average shear strength values order 31 obtained an average size 100 μm delamination zone. X-Ray Diffraction (XRD) structural characteristics. structure date had little no crystalline regions minimal alignment. Initial trials associated these lignin-based prepared VARTM considered are development. will integrate digital image correlation (DIC) accurate strain mapping specimen This top-to-bottom approach evaluate at every step realizing dream make bio-epoxy composite.