Plastics And Polymers Papers

  • Statement Of Purpose

    1014 words, 5 pages

    I have always been fascinated by the intriguing world of chemistry right from my adolescent days. My father a chemical technologist himself has been instrumental Names like Dupont, Dow Corning, Degussa have been integral part of my growing years. Being raised in a family with this background my most natural choice of career was in the field of Polymer Sciences. At junior college my good grades permitted me to choose a curriculum focused on physics, chemistry, mathematics and electronics. Right from my adolescent days, I have always been fascinated by the intriguing world of Organic

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    Forensics World Of Fibers

    1656 words, 7 pages

    Wide World of Fibers Abstract The whole aim of this experiment was to identify and analyzes fibers in a forensic laboratory, and to see their reactions in different conductions. The main purpose is to try to find what the unknown fiber was among different fibers. The fibers which were used in this lab were acetate, cotton, nylon 6.6, silk viscose and wool. Many of these fibers are from natural fibers. Natural fibers are from living things like the cotton plant, silk worm, goats, and sheep, these animals contribute in producing cotton, linen, and nylon 6.6 and silk. Many others fi

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    Case Study Of A Trading Company

    2655 words, 11 pages

    Case Study: Creser Hong Kong Limited INTRODUCTION Creser Hong Kong Limited (Creser), established in 1998, specializes in sourcing and supplying waste plastics for recycling. Headquartered in Hong Kong, Creser operates in a global market via her well-established network. In the past ten years, Creser has been handling all kinds of plastic scraps business, including waste collection, processing and recycling. She collects plastic scraps all-over the world, and sells it to Mainland China. Creser has business operations established not only in the Far East Asia but

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    Amino Acids

    1006 words, 5 pages

    Amino Acids Introduction: Amino acids are monomers of the macromolecule protein. Amino acids are composed of: a Carboxyl group (COOH), Amine group (NH2) and a variable “R” group all of which connect to a central carbon (which is also bonded to hydrogen). There are twenty standard amino acids. The variable “R” group dictates what the amino acid will be; hence changing the R group changes the amino acid and its chemical properties. Amino acids bond via peptide bond. Peptide bonds are formed from the dehydration synthesis of amino acids to form a covalent bond between the Carboxyl carbon

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    Origins Of Life

    1754 words, 8 pages

    The Origins of Life Before any inquiry can be made into biological evolution, the question of the origins of life must have an answer. For without first having an answer, evolution is deprived of its starting point. (Mader 2006) thus the origins of life have become one of the most significant questions in modern day biology, signifying an extensive hole in human’s knowledge of life and the development of life. Throughout history there have been many attempts in explaining the origins of life, it has now been segregated into 4 stages of chemical evolution and there are hypothesis on how each

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    Gamt Argument Analysis Sample 1

    1401 words, 6 pages

    3. The following appeared in a memorandum issued by a large city’s council on the arts. “In a recent citywide poll, fifteen percent more residents said that they watch television programs about the visual arts than was the case in a poll conducted five years ago. During these past five years, the number of people visiting our city’s art museums has increased by a similar percentage. Since the corporate funding that supports public television, where most of the visual arts programs appear, is now being threatened with severe cuts, we can expect that attendance at our ci

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    Fiberglass Materials

    1154 words, 5 pages

    Fiberglass and Composite Material Design Guide The purpose of this design guide is to provide some general information on fiberglass and composite materials and how to design products with these materials. If you have more specific questions, please contact our engineers at Performance Composites and they will gladly assist you. Composite Materials Composites materials are made by combining two materials where one of the materials is a reinforcement (fiber) and the other material is a matrix (resin). The combination of the fiber and matrix provide characteristics s

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    Carbon: The Roots Of Life

    983 words, 4 pages

    Carbon is known unto man as one of the greatest elements due to the vast varieties of its uses and responsibilities. It is known to be the sixth most abundant element in the entire universe. Here on Earth, carbon gives the framework of all the tissues of plants and animals. Everything that you would see on a normal day-to-day basis is built up on the roots of carbon. All proteins that are in the world such as hair, meat, and silk contain carbon. People even in the ancient times knew about carbon. So carbon is not just some new element that we ahs humans have just recently learned about.

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    M 3 01 Problem Solving

    1461 words, 6 pages

    Work based assignment.M3.01 Problem solving. Background Jonesco was established in 1967 to manufacture steel mudguards for commercial vehicles. In the mid-1970s the Company began to manufacture plastic mudguards to complement those made from steel. Whilst continuing to manufacture mudguards from steel, the plastic mudguard has rapidly gained prominence in most markets and now accounts for 97% of mudguard sales. The Company has grown continually and in December 1989 moved to a purpose-built 4-acre (16.200m2) site with space for further development and production. In

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    Riordan Manufacturing China Worksheet

    1052 words, 5 pages

    Business Sustainability Assessment Worksheet: China Use this worksheet to conduct a sustainability audit of Riordan Manufacturing, a virtual plastic injection molding company. Fill in all necessary information. Production stages that do not occur at this plant are marked as N/A. Section 1: General Information Company: Riordan Manufacturing, Hangzhou, China Products: Plastic fan blades and housings Section 2: Production For each production stage, list input materials such as raw materials or output from previous stages, and output materials such as produ

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    Gel Electrphoresis

    996 words, 4 pages

    Biochemistry lab In this experiment we used gel electrophoresis to analyze the different molecular weights of a protein sample. The gel used was a mini-protean PGX precast gel 7.5% with tris/glycine buffers. The gel was packed inside a bag; it contained a comb, which was placed in the wells of the gel. The 7.5% gel means that the pores are larger than the 12% that some other students had. The 7.5% gel has 10 wells. It has numbered, marked well outlines on the cassette to ease the loading and the identification of the sample. It is an inexpensive buffer system, which means low running costs.

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    Health And Social Care Level 3 Unit 13 P 2

    1257 words, 6 pages

    Unit 13 – Physiology of Fluid Balance for Health and Social Care Movement of Materials Introduction For this assignment, I will have to talk about the movement of materials in the body, e.g. the states of matter; solid, liquid and gas. Materials; particulate, ionic, in solution, relevant colloidal forms e.g. emulsion (oil in water, etc.) Movement of materials: diffusion, facilitated diffusion, osmosis, active transport, endocytosis, and exocytosis. The States of Matter; The states of matter are solid, liquid and gas. All types of matter are made of atoms and molecules. Atoms are the sma

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    Biological Molecules

    1261 words, 6 pages

    Cells mainly consist of water molecules but there are a number of other important biological molecules vital to allow life to exist. Macromolecules are among the most important as they can offer structural support to the cell, hold energy like a battery, act as a catalyst for biochemical reactions and store genetic information as well as having many other important functions. Macromolecules are formed of monomers - simple molecules that can bond together with others to form larger more complicated molecules. When two monomers react, they create a separate water molecul

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    Standards

    1502 words, 7 pages

    1. STANDARDS FOR BIODEGRADABILITY AND COMPOSTABILITY ASTM and other organizations have developed specific tests that can help with disposal guidance by establishing whether bioplastics will biodegrade in certain environments. The ASTM certification method entails first setting standard test methods that detail how a test should be performed on a particular product. Then the ASTM sets a standard benchmark as a pass/fail point to be met using the related test method. A laboratory must follow ASTM test methods to determine if a product meets the ASTM Standard. There ar

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    Determining Mechanical Properties By Using Tensile And Hardness Test

    1265 words, 6 pages

    This is an experiment to determine the mechanical properties by using tensile and hardness test. In this case we have to know the atomic bonding and structure affect the mechanical property of material. We need to know different crystal structure and different coordination and different bonding type will affect the properties of material. We need to the main five properties of the material, toughness, Young’s modulus, yield strength, ductility, and ultimate tensile strength. We need to know the relationship between the properties of material. We also need to know how hardness relate to those p

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    Molecular Weight

    1756 words, 8 pages

    ABSTRACT The effect of molecular weight and time on the rate of diffusion was resolved using the agar-water gel test. A petri dish containing three wells was used in the the agar-water gel set up. One drop of each of the three substances, potassium permanganate (KMnO4), potassium dichromate (K2Cr2O7) and methylene blue, was placed to each well at the same time. The potassium permanganate, having the smaller molecular weight of 158 g/mole, resulted the larger diameter (1.44mm) and the fastest rate of diffusion (0.029 mm/min) while the methylene blue, having the larges

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    Biomemetic Composite

    1767 words, 8 pages

    Overview of Biomimetic Composites North Carolina State University, Department of Materials Science and Engineering, MSE 556; Composite Materials July 9, 2012 INTRODUCTION Composite materials play a critical role in current technological innovations and applications. A composite material is a combination of two or more chemically different materials with a specific interface between them. The combined materials maintain their material properties microscopically in the composite, but their combination produces properties and characteristics that are different from

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    Enzyme Structure

    1770 words, 8 pages

    ENZYME STRUCTURE Enzymes are very important molecules. They are globular proteins that help speed up chemical reactions in the body without being changed structurally. Enzymes can be reused continually to form new products. To understand enzymes, we’ll first look at the general structure of proteins and the importance of enzyme functions in our bodies. Protein Structure Proteins are a major class of macromolecules found in all living organisms. Proteins are vital for growth and are found in the major tissues of the body such as muscle, cartilage and bones.

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    Polyvinyl Chloride (Pvc) Paper

    1777 words, 8 pages

    Fire retarding properties PVC has inherently superior fire retarding properties due to its chlorine content, even in the absence of fire retardants. For example, the ignition temperature of PVC is as high as 455°C, and is a material with less risk for fire incidents since it is not ignited easily.Furthermore, the heat released in burning is considerably lower with PVC, when compared with those for PE and PP. PVC therefore contributes much less to spreading fire to nearby materials even while burning.Therefore, PVC is very suitable for safety reasons in products close to people’s daily lives.

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    Bamboo As A Building Material

    2513 words, 11 pages

    This article from Discover Magazine discusses the advantages of bamboo as a building material and introduces the engineer who has dedicated several decades to researching and promoting its use. Bamboo expert Jules Janssen is admiring a stalk of Bambusa vulgaris. A popular ornamental, the plant can be seen in Chinese brush paintings and along the quiet pathways of Buddhist monasteries. But the beauty of this particular piece, in Janssen's eyes, has nothing to do with its graceful proportions or its polished yellow hull. It has to do with the 78 newtons per square millimeter of compression fo

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    Polyethylene

    2961 words, 12 pages

    2. LITERATURE REVIEW 2.1 Types of Polyethylene The most common polyolefin is polyethylene. Polyethylene has the basic structure of -[CH2CH2]- (shown in Figure 2.1) which consists of a long chain of repeated ethylene units. Even though polyethylene has this simple structure, there are several families of polyethylene with different branching structures. Since polyethylene is a partially crystalline solid, different branching structures affect the crystallinity and density. Figure 2.1: Molecular structure of Polyethylene Commercially, polyethylene is generally

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    Gold (Au) Chemistry Assignment

    2480 words, 10 pages

    1. Abstract 1.1 - Gold Gold was one of the earliest metals to have ever been discovered and to attract human attention (‘Gold’, The New Encyclopaedia Britannica). It is considered a transition metal and is believed by scientists that gold may possibly be found on Mars, Mercury and Venus, although initial findings have not yet been made. Many different chemical and physical properties help characterize what gold is like, such as its high melting and boiling points and its high density. Gold is also highly malleable and ductile which means it is able to be hammered int

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