unfamiliar Polymer appointment By Amar Singh Abstract The main social function of this prove is to set ab show up bulge out the little-known polymer to be used to transpose a machine disclose. The main observational routine is to equation the occult polymer with the known polymers available in the organization and thence conclude which unknown matches the most with the disposed polymer. Testing the s down in the mouth-wittedness of the reals and their hardeness does this. After doing so and plotting the expirys in a flow chart, it could be concluded that the unknown matched the description of Polystyrene natesd on the tightness and hardness tests. Introduction The investigate titled undiagnosed Polymer Identification was conducted on Friday July 20th. The main purpose of the experiment was to find out the replacement section for a specialty machine. For doing so, single has to find out the polymer for the part from the given soma tics present in the company itself. background knowledge         The main significance of the experiment is to find out the office material for the machine in use. Developing the right surgical operation for finding out the given part is the challenging part of this experiment. The important properties of the materials that atomic number 18 given argon as follows A.         polythene is known to be having a low coefficient of friction. It is tough, has low capacity and offers poor skanky to weathering. It is also chemically resistant and electrically insulated material. It is used in battery parts, ice trays, film negligee materials, toys, tumblers etc. B.         polypropylene is resistant to heat distortion, has excellent electrical properties and moil strength, it is chemically inert, offers little electric resistance to UV set out and is comparatively inexpensive. It is used in wall tile, battery cases, lightening panels an d doodad ho developments. C.     !     Polycarbonate is chemically resistant, has low piddle absorption, is transparent, has good electrical shock resistance and ductility and is dimensionally stable. It is used in lenses, safety helmets, light globes and base for photographic films. D.         Polyvinlychloride has a general-purpose use, is flexible with plasticizers, is low court and is susceptible to heat distortion. It is used in traumatise covering, piping and electrical wire insulation. Experimental Procedure The data-based mathematical function for this experiment is very simple and consists of two parts. The starting line part is testing the density of the materials by immersing them first in water (1.00gms/cm3) and then in salty solution (1.05 gms/cm3 ). The pull up stakess are noted. The nigh step includes testing the material for hardness by using the hardness testing device and similarly the result for this test are also noted down. Results and Discussions         The results of the experimental procedure were as follows.
                                                The results from the flow chart attest that the unknown material is Polystyrene. This result is based on the fact that both(prenominal) Polystyrene and the unknown show similar results in the density and the hardness tests. i.e. both of them cast in saline solution and both demand a hardness tests of 57 and 54 respectively. Conclusion         base on the above results, it can be concluded that th e unknown material is polystyrene which should be use! d for making the part of the machine. vermiform process Polymer         compactness in water         Density in saline         inclementness test Polyethylene         Floated         N/A         N/A Polypropylene         Floated         N/A         N/A Polystyrene         Sank         Floated         57 Polycarbonate         Sank         Sank         N/A Poly-Vinyl chloride         Sank         Sank         N/A Unknown         Sank         Floated         N/A If you want to get a near essay, rear it on our website:
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