Syntactic foams are lightweight, high specific strength materials used in the aerospace and naval industries. Their utility is limited by their brittleness. The epoxy polymer matrix an epoxy/hollow glass microsphere (GMS) syntactic foam was modified using carboxyl-terminated butadiene-acrylonitrile (CTBN) rubber with aim to increase fracture toughness. microstructure properties were investigate...

Abstract Red brick waste (RBW) powder was used as a reinforcing filler for acrylonitrile butadiene rubber (NBR) preparing eco-friendly composites. The main constituent of this is silica which considered to be one the traditional fillers in industry. So it worthwhile get suitable manner by using NBR. Physicomechanical properties were evaluated, including tensile strength, elongation at break, ha...

The viscoelasticity of several polymers has been determined using dynamic mechanical analysis (DMA). For the same materials the sliding wear in multiple scratching along the same groove has also been determined. The materials studied were polycarbonate (PC), polystyrene (PS), styrene/ acrylonitrile (SAN), Surlyn, polyethersulfone (PES), acrylonitrile/butadiene/styrene (ABS), polypropylene (PP),...

A series of drop weight tests were conducted to evaluate the dynamic flatwise compression strength and flexural strength of sandwich panels with a novel core structure. This sandwich core material, known as Norcore, consists of interconnected cells in a unique configuration of truncated pyramid with sloping cell walls. Core materials made of thermoplastic including virgin Lexan, polycarbonate, ...

The main purpose of this work is to reveal the effects carboxyl-terminated butadiene–acrylonitrile (CTBN) rubber particles on fracture and tensile behavior anhydride-and amine-cured epoxy/CTBN blends. In study, 1 wt.%, 3 5 7 10 wt.% 15 CTBN were added two different epoxy-hardener systems. CTBN/epoxy blends prepared by ultrasonic mixing device curing processes determined DSC analysis. As fractio...