Reclaimed rubber powder (RRP) was treated by the addition of glycidyl methacrylate (GMA) to impart desired properties suitable for oil resistance applications. The produced GMA-RRP mixed with nitrile–butadiene (NBR) in various compositions. blends were irradiated gamma radiation doses 50–250 kGy. compounding blend factors has been elaborated using Fourier transform infra-red spectroscopy and scanning electron microscopy (SEM). Different synthesized unirradiated such as tensile strength,...

Abstract Reclaimed rubber powder (RRP) was treated by the addition of maleic anhydride (MA) to impart desired properties suitable for self‐adhesive sheets and concrete lining applications. The produced MA‐RRP mixed with natural (NR) various compositions. A fixed 1 : blend ratio NR RRP reinforced contents glass fiber (GF) in an open two‐roll mixing mill. composites were irradiated using a 1.5 MeV electron beam accelerator at 30 50 kGy irradiation doses. Different composite such as tensile...

This investigation focused on the opportunity of devulcanizing waste Rubber (WR) by ultrasonication to study possibility utilized as an added substance replace with styrene‐butadiene rubber (SBR) in preparation process final aim new composites. The present work expects compare ultrasonic technique and previous devulcanization mechano‐chemical method. influence treatment WR was explored Fourier transform infrared, thermogravimetric analysis, scanning electron microscopy analysis revealed that...

In this study, waste newsprint paper fiber was treated by polystyrene emulsion and included as a filler in styrene butadiene rubber. Then, the composites were subjected to electron beam irradiation at different doses, follow-up done on effect of dose concentration mechanical physical properties prepared composites. The results indicated that like tensile strength, elongation break, stiffness, toughness enhanced increase radiation content. Also, soluble fraction, swelling ratio, volume...

Abstract Polymeric materials with improved properties can be obtained through polymer blends. As a mixture is generally immiscible and incompatible, it necessary to use compatibilizers improve the interfacial adhesion. Polyamide 6 (PA‐6) an attractive engineering applications; however, reveals processing instability relatively low‐notched impact strength. This behavior modified by blending acrylonitrile–butadiene–styrene (ABS) copolymer. In this study, blends of PA‐6 ABS were prepared using...

Abstract In the present study, effect of gamma and electron beam (EB) irradiation on thermal mechanical properties high crystalline polypropylene (HPP) was studied. To study structural modifications HPP polymer which could occur following these treatments at different doses (20, 40, 60, 80, 100, 120 kGy) were applied to all samples. Nonirradiated used as control samples, differential scanning calorimetry analysis, thermogravimetric Mechanical tests carried out evaluate both (EB irradiation)...

Abstract In this study, the synergistic effect of talc content % and gamma irradiation on some mechanical, thermal, electrical resistance, microstructural properties molded waste polyethylene/recycled rubber powder (WPE/RWRP) 60/40 was investigated. The ternary composites concentrations, 5, 10, 15, 20 wt %, were irradiated with doses 50, 75, 100, 150 kGy. mechanical properties: tensile strength, elongation at break, elasticity modulus, thermal melting temperature ( T m ) (Δ H predicted....

ABSTRACT Mechanical and thermal properties of devulcanized rubber (DR)/polypropylene (PP)/ethylene propylene diene monomer blends (EPDM) were studied at various concentrations dicumyl peroxide (DCP) gamma radiation doses. The showed improved mechanical for vulcanized sample. coupling DR/PP/EPDM with different proportions DCP was investigated by X‐ray diffraction scanning electron microscopy techniques. Evaluation the developed blends, unirradiated irradiated, carried out using elastic...

Abstract The engagement of waste tires rubber as source raw materials for different applications can be a partial solution to the great environmental problems caused by these products. In this study, tire was devulcanized using both mechano–chemical and microwave methods. This process achieved concentrations 2-mercapto benzothiazole disulfide (MBTS) tetramethylthiuram (TMTD) devulcanizing agent times. optimum content MBTS, TMTD suitable treatment time make continuous film were noted. then...

Abstract In the present study, effect of electron beam irradiation on morphological, thermal, and mechanical properties waste polyamide copolymer (WPA‐66/6) blended with different contents acrylonitrile butadiene rubber (NBR) were studied. The prepared blends subjected to doses up 150 kGy structural modifications discussed; non‐irradiated used as control. Mechanical properties, namely, tensile strength (TS), yield strength, elongation at break, hardness, followed functions dose degree...

Abstract The physicomechanical behavior and flammability properties of waste polyethylene recycled rubber powder blend (WPE/RWRP/MA) filled with antimony trioxide (Sb 2 O 3 ), at different contents 5, 10, 15, 20 wt %, irradiated gamma radiation doses, namely 50, 75, 100, 150 kGy, were investigated by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) limiting oxygen index (LOI) measurements. Tensile strength, elongation break, elastic modulus, hardness, swelling...

Abstract Blends of waste low‐density polyethylene with butyl rubber equal quantities containing reactive compatibilizing agents, namely: maliec anhydride; glycidyle methacrylate, divinyl benzene, tetraethyleneglycoldimethacrylate and diethyleneglycoldimethacrylate were preparedand exposed to different γ‐irradiation doses up 400 kGy. The swelling behavior in organic solvent the gel soluble fractions degree crosslinking investigated. mechanical properties, namely tensile strength elongation at...

Abstract Flame‐retardant polyvinylchloride (FRPVC),typically used in cable insulation and jacketing construction for multi‐purpose reactor (MPR) at Atomic Energy Authority of Egypt, as well carbon‐black FRPVC (CB‐FRPVC) nonflame‐retardant PVC CB‐PVC materials produced by Egyptian Electrical Cable Company (EECC), have been irradiated up to 160 KGy, room temperature with a 60 Co gamma source. Free‐volumes thermal stability nonirradiated samples examined using positron annihilation Lifetime...

Abstract The curing characterizations of natural rubber (NR) and styrene butadiene (SBR) lattices their blends with without NR‐ g ‐MA SBR‐ were studied by using oscillating disc rheometer methods. minimum value for torque decreases increasing NR in the incorporation ofNR‐ ‐MA. maximum increases SBR blend presence (NR‐ ‐MA) is decreased. mechanical properties samples studied. tensile strengths increased steadily an increase content blend. Thermal characteristics these latex thermogravimetric...

Abstract In this article, we discuss the radiation effects and ethylene‐vinyl acetate (EVA) as compatibilizing agent on waste polyethylene (WPE)/virgin (VPE), 80/20 wt%, reinforced by Kevlar fiber (Aramid). Hence, melt mixing compatibility between WPE VPE will be performed adding 10 phr fixed weight of EVA. After that various weights at 1.5, 2.5, 3.5 were into prepared polymer blend. The composites mechanical properties thermal stability predicted. Furthermore, infrared X‐ray diffraction...

Abstract Compressed molded waste poly(propylene) was reinforced with short carbon and/or glass fibers for investigation. The prepared composites were γ‐irradiated to estimate the role of ionizing radiation as a compatibilizing agent. TGA and DSC used investigate influence exposure dose incorporation on thermal parameters composites. mechanical properties different also studied. It observed that highly affected by kind incorporated γ‐irradiation. structural morphological studies made means...

Abstract Waste newsprint fibers were used as reinforcing fillers in composite materials based on a styrene‐butadiene rubber matrix. Surface modification of the was carried out by polystyrene emulsion treatment, and copolymerization with matrix done radiation technique. Characterization modified surfaces adhesion between treated paper involved variety techniques, including X‐ray diffraction, FTIR spectroscopy differential scanning calorimetry, which revealed that surface did occur it affected...