Generally, to produce film-type thermoplastic composites with good mechanical properties, high-performance reinforcement films are used. In this case, films used as a matrix are difficult to impregnate into tow due to their high melt viscosity and high molecular weight. To solve the problem, in this paper, three polypropylene (PP) films with different melt viscosities were used separately to pr...

Sol-gel technology is increasingly being used in coatings for corrosion protection and adhesion improvement. So far, the self-healing concept in sol-gel coatings has only been approached from extrinsic healing perspective (i.e. use of nano and micro carriers of corrosion inhibitors) [1]. Despite the benefits of this approach, the damaged area remains open to ambient environment. The implementat...

The addition of less than 1 vol%, 33 nm zinc oxide nanoparticles into a polyurethane matrix resulted in approximately 40% decrease in the Young’s modulus, 80% decrease in strain at fracture, and 50% decrease in the storage modulus, but at the same time resulted in an w11 8C increase in the glass transition temperature of the polymer. These results appear to contradict the general principle obse...

The performance of pretensioned, laminated, unidirectional (UD), carbon fiber reinforced polymer (CFRP) straps, that can potentially be used for example as bridge deck suspender cables or prestressed shear reinforcements concrete slabs and beams, was investigated at elevated temperatures. This paper aims to elucidate the effects temperature specifically on tensile pin-loaded straps. Two types t...

Thermal conductivity is a key property in many applications from electronic to informatics. The interaction of fillers with Sylgard 184 was studied; this study explores new composites and the influence metal particles (copper nickel), carbon-based materials (carbon nanotubes carbon black), ceramic nanoparticles (boron nitride) as enhance thermal properties silicon-based composites. effect on fi...

In current study, the synthesis and characterization of novel thermally stable polyimides (PIs) containing an 1,3,4-oxadiazole moiety based on a diamine, i.e. 2,5-bis(3-amino-4-methyl benzene)-1,3,4-oxadiazole (BAMO), have been reported. The polymers were characterized using FT-IR and elemental analysis (CHN). Thermal and mechanical behaviours of the prepared PIs were studied by thermo-gravimet...

Dual-curing is a processing technology based in the combination of two polymerization processes and proper selection formulation. This methodology allows preparation intermediate materials with tailored characteristics, which can be viscous-liquids or rubbery solids according to their application. Once applied, second stage performed leading high crosslinked network. Usually, different monomers...

This paper aims to investigate the ability of an eco-friendly and cheap treatment based on sodium acetate solutions improve mechanical properties flax fiber-reinforced composites. Flax fibers were treated for 5 days (i.e., 120 h) at 25 °C with mildly alkaline 5%, 10% 20% weight content salt. Quasi-static tensile flexural tests, Charpy impact tests dynamical thermal (DMTA) carried out evaluate r...