Abstract A dynamic mechanical thermal analyser (DMTA) was used to develop insight into the properties of bioinspired asymmetric helicoidal carbon fibre reinforced plastic (CFRP) composites as a function architecture using inter-ply stacking angles 0° (UD), 0/90° (cross-ply), 5°, 15°, 10°, 20°, 25° and 30°. Here, we show that CFRP are linearly correlated their oriented ply fractions between 45° ...

In this study, application relevant toughened epoxy-amine formulations were investigated regarding their mechanical behavior at low temperatures and compared to a non-toughened reference. The application-oriented resins are based on reactive diluent-modified diglycidylether of bisphenol A (DGEBA) which tested 22 °C ?50 in regard fracture toughness (KIC) fatigue crack propagation (da/dN) behavio...

The wheat straw as abundant lignocellulosic resource was successfully undergone in a benzylation reaction and plasticized with different contents (2.5, 3, 5 and 7 wt. %) of glycerol and stearic acid.The effect of type and concentration of plasticizers on the mechanical, thermomechanical, morphological and water absorption properties of Benzylated Wheat Straw (BWS) was investigated ...

The aim of this work is synthesis a novel nanocomposite containing Polylactide (PLA) and polyamide 6 (PA6) reinforced with graphene oxide (GO) poly ethylene-butyl acrylate-glycidyl methacrylate) (PTW) compatibilizer during solvent-based method. For purpose, GO was added to the 0.1, 0.3, 0.5, 0.7 1 phr. Morphology, rheology mechanical properties nanocomposites were studied scanning electron micr...

The La Quina 5 Neandertal individual, dated to late Marine Isotope Stage (MIS) 4 or early MIS 3, lived during a particularly cold and arid Ice Age interval, hunting mostly reindeer in open steppe habitats. Stable isotopes indicate the importance of hunted resources for Neandertals, although evidence plant use also has been discovered. To address food signature diet 5, we marshal multiple method...

Mixtures of poly(butylene-adipate-co-terephthalate) (PBAT) with thermoplastic starch (TPS) in a broad concentration range from 70:30 to 30:70 wt.% were prepared twin-screw extruder. Mechanical properties tested, showing that the addition TPS leads substantial decrease tensile strength as well elongation at break, while Young’s modulus is rising substantially. Additional data collected by dynami...

Supramolecular polymers can substantially influence the dynamic mechanical properties in slightly crosslinked polymer networks. One prominent example of supramolecular building blocks is 2-ureido-4[1H]-pyrimidinones (UPy). Combining UPy-terminated segments with classical covalent-reactive monomers implements behavior photopolymerizable systems. In this work, a UPy-based methacrylic monomer (up ...