Introduction Poly vinyl chloride commonly known as PVC or Vinyl is the 3rd largest selling commodity plastic in the world today. Although early accidental discoveries of PVC were found in the 1800’s it wasn’t until the 1920’s when an industrial scientist named Waldo Semon at BFGoodrich commercialized the material for use as a water resistant coating for fabrics. During the 1950’s the refining methods enhanced durability introducing its use in the building and the construction industry. Water pipes
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primarily from petroleum. polystyrene‚ polyesters and acrylics used in the manufacture of varnishes‚ plastics‚ adhesives and rubber. Various Resins Of Plastic Polyethylene terephthalate (PET‚PETE) Density polyethylene(HDPE) Vinyl(Poly vinyl chloride or PVC) Low Density Polyethylene(LDPE) Polypropylene(PP) BASIC PROCESSES Segregation . Cleaning process . Shredding process . Collection process . 2.Wet Process Waste plastics by direct mixing with hot bitumen at 160°C Mechanical
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comprised of the monomer vinyl chloride. The repeat unit in the monomer generally corresponds to the monomer from which the polymer was made. As with any rule‚ there are exceptions. For example‚ polyvinylchloride is formally thought to be made up of vinyl alcohol (CH2CHOH) repeat units; but factually‚ there is no such monomer as vinyl alcohol. The suitable molecular unit exists in the tautomeric form‚ ethanal (CH3CHO). In order to make this polymer‚ it is required that polyvinyl ethanoate is firstly prepared
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Purpose: The purpose of this experiment is to determine the number of moles of water molecules of crystallization of a sample of hydrated Barium Chloride. This can be calculated using Gravimetric Analysis and to indirectly determine the percent composition of a hydrate by taking advantage of its chemical properties. Introduction: Gravimetric procedures are analytical methods in which the results are determined from the masses of starting materials and products. These methods
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developed extensive oil holdings in North Africa and the Middle East‚ as well as significant coal beds in the western United States. In 1979‚ Pacific Oil established the first major contract with the Reliant Corporation for the purchase of vinyl chloride monomer. The Reliant Corporation was a major industrial manufacturer of wood and petrochemical products for the construction industry. Reliant was expanding its manufacturing operations in the production of plastic pipe and pipe fittings‚ particularly
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Name: Bhumiben Shah Date: 31st Jan ‘13 EXPERIMENT # 2 RECRYSTALLIZATION; FILTRATION OBJECTIVES: 1. To perform recrystallization and filtration of given impure organic compound. 2. To purify impure acetanilide using reflux condenser apparatus and Hirsch funnel filtration. 3. To determine percentage recovery of pure material (which is)‚ purified by recrystallization and filtration. SAFETY PRECAUTIONS: 1. Operate the aspirator with the maximum water-flow using a stop cock to
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Project 1: Polymer Ball Vivian Kim General Chemistry 2045L Introduction Our assignment in this project was to create a bouncy ball for a company using polyvinyl alcohol (PVA)‚ polyvinyl acetate solid and sodium borate‚ by varying the ration of ingredients and to determine the best recipe for our bouncy ball. The company chose the materials because of their odorless and nontoxic properties. PVA is a water-soluble synthetic polymer and has adhesive properties
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the environment. In other words‚ we created the perfect eco-friendly bouncy ball. The materials we used to create this eco-friendly ball were polyvinyl alcohol (PVA) and polyvinyl acetate (PVAc) and we reacted them with sodium borate (borax). Polyvinyl acetate (PVA) is a water-soluble synthetic polymer. It has the idealized formula [CH2CH]n. Polyvinyl acetate (PVA) is a synthetic resin polymer. The chemical formula of this component is (C4H6O2)n. The last component is sodium borate (Borax).
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Experiment 1: SLIME (Starting Labs Is Mighty Exciting) Abstract In this experiment we investigate the properties of SLIME. Substitution of polyvinyl alcohol instead of Guar gum makes this experiment quite accessible. The Slime is prepared by mixing a solution of (Na2B4O7*10H2O) sodium tetraborate decahydrate (Borax) and H2O with a solution of polyvinyl alcohol (pva) and H2O. Then stirring for ~10 minutes to obtain the final product‚ SLIME. The product was examined and noted on the “non-Newtonian
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of a salad dressing using xanthan gum solution‚ water and oil. Commonly used as a food thickening agent‚ Xanthan gum is a large molecule composed of several saccharides linked together. The second experiment to be conducted is with the reagents polyvinyl alcohol and sodium borate solutions‚ each solution is to be added DI water to dissolve the solute then mixing both together at a breakthrough point temperature for the formation of a polymer – slime. In the first experiment‚ into two small vials
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