Mechanical properties of low density polyethylene and its composite

Abstract

An experimental investigation of mechanical properties of the Low Density Polyethylene (LDPE) and its jute fiber-reinforced polymeric composite are presented on the basis of the results of the tensile test. Tnthis case hand injection molding machine was used to manufacture the specimens. The long jute rope is twisting form of many long fibers together which is called as ro\ing. At first, long roving jute are Slraighlly set in the longitudinal direction of the mold along the length of the specimen. Then LOPE is supplied in the form of pellets in to the heating chamber. The LDPE is healed to form the liquid within minutes. The hot molten LOPE is forced to inject under pressure into the cold mold through the noz7,1c.The pressure is released after few seconds. Then the mold is setout and the shaped specimen removed from the mold immediately. No Chemical reaction occurs during the molting process. After that the length, \\idth and thickness of each specimen measured with a suitable micrometer at several points. The specimen tested under tensile load by the universal testing machine. According to the results, it is discussed and analyzed that the mechanical properties like, max displacement, max stress, break load, break displacement, break stress, energy absorption capacity and young modulus arc increased in the composite material in comparison with that of the Low Density Polyethylene resin matrix. By analyzing tor present work further research and development, according to the needs in extension of this work.