Abstract
In this research, investigating the possibility of producing, processing and also characterization of polypropylene fiber and recycling polypropylene has been presented. For this purpose, PP powder and inorganic filler were mixed using a twin screw extruder and modified granule was produced. After producing as-spun filament yarns by spinning machine at the take-up speed of 2000 m/min, samples were drawn, textured and finally weft knitted. Physical and structural properties of as-spun and drawn yarns with constant and variable draw ratios were investigated. The experimental results revealed that the straight run PP yarn impact tolerance is higher than the recycled PP yarn. And both type of yarns could be compared by drawing process. The straight run and recycled polypropylene filament woven laminates performed better in terms of both tensile load and broken elongation, with slight decrease in broken elongation results.
Highlights
Polypropylene (PP) is a linear hydrocarbon polymer, expressed as CnH2n
Fiber reinforced composite materials are widely used in aerospace, automotive, military, wind energy, marine and civil engineering applications
Their susceptibility to low and high velocity impacts still of major concern since induced damage can significantly reduce the residual strength of the composite laminates [3] [4]
Summary
Polypropylene (PP) is a linear hydrocarbon polymer, expressed as CnH2n. PP, like polyethylene (High Density Poly Ethylene or Low Density Poly Ethylene) and polybutene (PB), is a polyolefin or saturated polymer. Fiber reinforced composite materials are widely used in aerospace, automotive, military, wind energy, marine and civil engineering applications Their susceptibility to low and high velocity impacts still of major concern since induced damage can significantly reduce the residual strength of the composite laminates [3] [4]. Propylene is used for important parts (Barrel) of Syringes or granules practically insoluble in water, soluble in hot aromatic hydro carbons, practically insoluble in ethanol, in hexane and in methanol It softness at temperature above about 120C [1].the study was aimed to distinguish between PP filaments yarn and the recycle PP filament yarns in terms of mechanical prosperities and compare the quality of the both different types of PP filaments yarn according to Reference standards are ASTM D618 and ASTM D2256
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