Abstract
Damage is a key problem that limits the application of polymer membranes. In this paper, conductive carbon black (CB) and silicon dioxide (SiO2)-reinforced polyvinylidene fluoride (PVDF) composites were prepared using a solution mixing method. Through a uniaxial tensile test, the fracture and damage characteristics of the material were analyzed. When the structure had inevitable notch damage, changing the notch angle was very helpful for the material to bear more load. In addition, when there were two kinds of fillers in the PVDF matrix at the same time, there was an interaction between particles. The microstructure of the composite was characterized by scanning electron microscopy (SEM), energy-dispersive spectrometry (EDS), and thermogravimetric (TG) analysis. The experimental results indicate that, when the ratio of CB:SiO2:PVDF was 1:4:95, the general mechanical properties of the composite were the best.
Highlights
Compared with ordinary materials, composite materials have many characteristics which can improve or overcome the weakness of a single material, giving full play to the advantages of each material
The fracture damage characteristics of the materials were systematically studied by means of scanning electron microscopy (SEM), X-ray diffraction (XRD), and energy-dispersive spectrometry (EDS)
The materials used in the experiment were polyvinylidene fluoride (PVDF), SiO2, carbon black (CB), N,N-dimethylformamide (DMF, AR), The materials used in the experiment were PVDF, SiO2, CB, N,N-dimethylformamide (DMF, and a silane coupling agent (KH550, AR)
Summary
Composite materials have many characteristics which can improve or overcome the weakness of a single material, giving full play to the advantages of each material. Polyvinylidene fluoride (PVDF) is a typical polymer material widely used in various fields of engineering applications due to its excellent physical properties. It has good thermal and mechanical properties. The mechanical properties of composite materials were widely and deeply studied by scholars. Haddadi et al [19] studied the effect of different nano-SiO2 content on the mechanical and thermodynamic properties of PVDF. Different kinds of single-edge notched tensile tests were carried out to investigate the damage mechanism of PVDF matrix composites prepared in the laboratory. The fracture damage characteristics of the materials were systematically studied by means of scanning electron microscopy (SEM), X-ray diffraction (XRD), and energy-dispersive spectrometry (EDS)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
