An integral type non-local continuum model for epoxy, used as the matrix material in aerospace structural composites, is developed from phonon dispersion data. Non-local continuum models can be used to regularize the stress fields at crack tips and molecular defect cores (e.g. disclinations in epoxies) where local (classical) elasticity theories fail to give bounded solutions. Integral type non...

Ballistic performance, at effective strain rates of (10–10 s ), for polymeric dicyclopentadiene (pDCPD) was compared with two epoxy resin/diamine systems with comparable glass transition temperatures. The high rate response was characterized in terms of a projectile penetration kinetic energy, KE50, which describes the projectile kinetic energy at a velocity with a 50% probability of sample pen...

During their synthesis, multi-walled carbon nanotubes can be aligned and impregnated in a polymer matrix to form an electrically conductive and flexible nanocomposite with high backing density. The material exhibits the highest reported electrical conductivity of CNT-epoxy composites (350 S/m). Here, we show how conductive atomic force microscopy can be used to study the electrical transport me...

The stress-optical coefficient C σ of copolymers based on cured epoxy resins has been calculated. Calculations were made for bisphenol A and aliphatic aromatic diamines. values are in the range 91.6÷103 weight percent. All calculations carried out using Cascade computer program (developed by INEOS RAS). investigated structures obtained from industrial components. High make it possible to confid...

This study demonstrated a method for toughening a highly crosslinked anhydride cured DGEBA epoxy using rubbery block copolymer grafted SiO2 nanoparticles. The particles were synthesized by a sequential reversible addition-fragmentation chain transfer (RAFT) polymerization. The inner rubbery block poly(n-hexyl methacrylate) (PHMA) had a glass transition temperature below room temperature. The ou...

Cationic photopolymerization is amongst the greenest processes used to obtain polymers since light abundant, inexpensive and allows for rapid waste-less curing at room temperature. Moreover, in current search reduction of environmental impacts polymers, use biobased monomers one most crucial stakes. At crossroads these domains, offers best both. Hence, this review aims underlying increasing imp...

• T g of the epoxy adhesive increased when was cured or post-cured at 50 °C. The increase in testing temperature produced a decrease mechanical properties. Compressive strength differently affected if curing below beyond . Tensile non-monotonic way for temperatures 20 Structural cold-curing adhesives are widely used to strengthen Reinforced Concrete (RC) structures with Fibre Polymers (FRPs). p...