Question: Can we recycle polystyrene in a cost efficient way? If so‚ what impact does this have on the environment? Purpose: The purpose of this experiment is to see if we can recycle polystyrene using acetone. If this is possible‚ this can be used to help improve our environment since polystyrene itself is not biodegradable. Hypothesis: I hypothesis that polystyrene‚ mainly known as styrofoam‚ can be recycled using acetone. This cost efficient and easy method will not only motivate both individuals
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markedbyteachers.com Abstract The tensile test is widely used to provide basic design information on the strength of materials and as an acceptance test for the specification of materials. The teaching and learning of tensile testing was based on laboratory experiments used in the Mechanical Engineering Laboratory (CM180) at the City University. The experiment looked at how the microstructure of a material can affect its properties. It also introduced tensile testing and stress-strain curves
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Strength‚ J/m² | GPPS | 3450.15 | HIPS | 8192.40 | HDPE | 5649.46 | PP | 3436.41 | 8.1 Out of the four plastic materials‚ High Impact Polystyrene (HIPS) exhibits the highest impact strength compared with the other three. This suggests that HIPS withstand impact strength best‚ followed by High density polyethylene (HDPE)‚ General Purpose polystyrene (GPPS) and Polypropylene (PP) in descending order. The reason why HIPS has a higher impact strength than HDPE is because HIPS is made of a larger
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1. Introduction & Background of the study Styrofoam is a trademarked brand of closed-cell extruded polystyrene foam currently made for thermal insulation and craft applications examples of these Styrofoam are disposable coffee cups‚ coolers‚ or cushioning material in packaging. Styrofoam is widely used for insulator and packaging. The disposal of these products creates environmental pollution because of their non-degradable nature. Because of this problem‚ people think a possible way to reduce
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MATERIAL SCIENCE EXPERIMENT-2 NAME OF THE TEST: HARDNESS TEST AIM : OBJECT TO DETERMINE HARDNESS TEST OF A METARIAL INTRODUCTION It become necessary to test engineering materials before they are accepted for processing‚ buying or applying to determine whatever or not they meet the spefications required. One of the tests is hardness test. The Rockwell and brinell machines are those most commonly used for this purpose. PROCUDURE AND LABORATORY REPORT 1. Understad
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Lab Report - Tensile Strength Date : 24-Feb-2013 Experimental Data Cold Work Steel (CWS) – Specimen 1 Width (mm) Thickness (mm) I II III Average I II III Average Before 10.029 10.04 10.02 10.0297 3.06 3.07 3.07 3.0667 After 9.09 9.00 - 9.045 2.60 2.40 - 2.50 Annealed Steel (As) – Specimen 2 Width (mm) Thickness (mm) I II III Average I II III Average Before 10.24 10.13 10.10 10.16 3.07 3.08 3.09 3.08 After 8.11 8.08 - 8.095 2
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Name: Chun Ka Yuen (52180145) Group: C Date of experiment: 30/3/2012 Date of report: 3/4/2012 Experiment 5: Polymers Aim: This experiment is to prepare polymeric materials including polystyrene‚ Nylon6‚ 10‚ and cellulose triacetate. Introduction: A polymer consists of repeating subunits in the form of –A-A-A-A-A- or A-B-A-B-A-B-‚ where A and B are different subunits. These sub-units are typically connected by covalent chemical bonds
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The Tensile Behaviour of Common Engineering Polymers Abstract The mechanical properties of polymers vary significantly from polymer to polymer as a result of atomic structures and bond strength. The tensile properties of representative samples from the common polymer were tested and evaluated in this experiment. This laboratory experiment is also designed to demonstrate the procedure used for obtaining mechanical properties as modulus of elasticity‚ yield strength‚ ultimate tensile strength
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7. Modelling Polyethylene As mentioned previously‚ PE is one of the most important polymers in the world. ADMET has been used to systematically model commercially relevant polymers‚ specifically PE and copolymers of ethylene and another monomer. ADMET is capable of producing PE with specific sequences of monomer units‚ as well as random copolymers via copolymerization with 1‚9-decadiene. The ability to precisely synthesize these polymers has opened the door to exploring the molecular origins of
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Investigating the effect of heat on the tensile strength of human hair Contents page 1. Abstract (summary): Daily care damages human hair and renders cavities‚ or holes in the endocuticle‚ damage such as this to the hair can be from daily use of heat appliances. The aim of this investigation is to find out whether hair that has been damaged due to heat can be strengthened by apply a conditioner. The hair was heated at 200 degrees in an oven and once removed divided into two different
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