In this research, the presence of microplastics was detected through a differential scanning calorimetry (DSC) analysis three wastewater treatment plants. One these plants applied only preliminary stage while others up to secondary evaluate their effectiveness. The results showed polyethylene (PE), polystyrene (PS), polypropylene (PP) and terephthalate (PET), which were classified as fragments,...

Living muscle fibers at rest have high extensibility, similar to that of rubber. However, no final conclusions can be drawn from this observation because supporting structures may determine the mechanical properties of muscle when examined with static methods. In the glycerol-extracted muscle fibers introduced by Szent-Gy~rgyi (1) mechanical prope-ties can be studied under a great variety of co...

Irradiation of polymers is one of the most effective and economical methods for modifying their properties and for changing their applications. In this study, an extrusion grade polypropylene (PP) was treated by electron beam irradiation to produce a PP suitable for injection molding. Irradiation was carried out at different doses (0-80 kGy) under atmosphere air and at ambient temperature. Melt...

Chemical coupling on the thennomechanical pulp (TMF') fiber improved tensile shrength of the TMP fiber handsheet and isotactic polypropylene film laminates (TPL). For the maleic anhydride W) with benzoyl peroxide (%PO) as an initiator, tensile strength i n d 52% with the TMP fiber treatment over untreated laminates. The optimum strength jmperties were obtaiaed with an MA and BPO ratio of 21. Sc...

Little is known about the impact behavior of composite fixation plate used in fracture healing long bones diaphysis. Hence, this study examined polypropylene plates using different glass fibers and measured their biomechanical responses under axial loading experimentally numerically. Short randomly oriented, unidirectional prepregs fiber yarn were considered as reinforcements, fabricated throug...