Impact resistant hybrid composites reinforced with inorganic nanoparticles and nanotubes of WS2. (1st November 2019)

• Record Type: Journal Article
• Authors: Simić, Danica M.; Stojanović, Dušica B.; Dimić, Mirjana; Mišković, Katarina; Marjanović, Milica; Burzić, Zijah; Uskoković, Petar S.; Zak, Alla; Tenne, Reshef
• Is Part Of: Composites. Number 176(2019)
• Publication Date: 2019-11-01
• Subjects: Aramid fibers -- Inorganic tungsten disulfide -- Thermomechanical properties -- Impact behavior -- Non-destructive testing; Composite materials -- Periodicals; Materials science -- Periodicals; Composite materials; Periodicals; Electronic journals; 620.118
• DOI: 10.1016/j.compositesb.2019.107222
• Languages: English
• ISSNs: 1359-8368

Abstract

Abstract: Impact resistant nanocomposites are recognized as promising in saving lives in the car, skiing and bicycle accidents, preventing the failure of polymer-based prostheses and orthotic devices, as well as for various defense applications. This research reports improved impact and ballistic resistance of composite materials based on p -aramid fabric impregnated with phenolic resin and poly (vinyl butyral) (PVB), reinforced with small amounts of inorganic fullerene-like nanoparticles of tungsten disulfide (IF-WS2 ) and multiwall inorganic nanotubes (INT-WS2 ). The evaluation of the tensile testing resulted in significant improvements in the tensile strength (24.7%) and toughness (64.1%) for the composites with the addition of only 0.3 wt% INT-WS2 nanotubes. The impact toughness increased by 35.8%; the back-face deformation depths after shots were reduced by 12%; the absorbed energy of the knife stab 8.5% higher and the deformation depth 40.4% smaller than for the sample without the nanoreinforcement. The reaction of the composite material to shot impact was recorded by high-speed and infrared camera, to observe heating and cooling rates of the sample caused by dissipation of the kinetic energy of the shots. Graphical abstract: Image 1