epoxy resin has undergone a long period of time. As early as 1891‚ the German Lindmann hydroquinone and epichlorohydrin with the reaction of condensation into the resin and make use of anhydride curing. But its value has not been revealed. Epoxy plastic has its roots far back in history‚ to be specific‚ in 1936‚ when Dr. Pierre Castan in Switzerland succeeded in synthesizing an epoxy resin that he hardened with pthalic acid anhydride. Dr. Castan’s work was licensed by Ciba‚ Ltd. of Switzerland‚
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Bisphenol A (BPA) is an industrial chemical that has been present in many hard plastic bottles and metal-based food and beverage cans since the 1960s. Bisphenol A-based polycarbonate is used as a plastic coating for children’s teeth to prevent cavities‚ as a coating in metal cans to prevent the metal from contact with food contents‚ as the plastic in food containers‚ refrigerator shelving‚ baby bottles‚ water bottles‚ returnable containers for juice‚ milk and water‚ micro-wave ovenware and eating
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OF NON METAL • CERAMIC A ceramic is an inorganic‚ non-metallic solid prepared by the action of heat and subsequent cooling. Example ceramics are used in the manufacture of knives‚ clay pot‚ and plate. [pic] • PLASTIC A plastic material is any of a wide range of synthetic or semi-synthetic organic solids used in the manufacture of
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Riordan Manufacturing is a global plastics manufacturer that employs 550 people. It is a wholly owned subsidiary of Riordan Manufacturing Industries which has earnings of more than $1 billion. The company is headquartered in San Jose‚ California‚ and has facilities worldwide. The mission of Riordan Manufacturing is to ensure that it remains an industry leader in the plastic manufacturing business and provides solutions to the existing customer base while expanding. The company will achieve this
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| Materials in Practice CP4088/CP8011 | By Clinton Chang | Synopsis This experiment is to find out the tensile strength of different plastic materials. The four plastic materials used are General Purpose Polystyrene (GPPS)‚ High Impact Polystyrene (HIPS)‚ High Density Polyethylene (HDPE) and Polypropylene (PP). By using three samples from each plastic material type‚ we are able to obtain the mean tensile strength‚ mean tensile modulus and mean yield strength of each material. With this‚ the
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After sensing the commercial application of several of his patented Polymer processes‚ Dr. Riordan started Riordan Plastics‚ Inc.‚ which initially focused on research and development. In 1992‚ Dr. Riordan acquired venture capital and purchased a manufacturing facility. Riordan Manufacturing Inc. has since grown into a global organization that specializes in the manufacturing of molded plastic products. With revenues in excess of $1 billion‚ Riordan employs 550 people and has projected annual earnings
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Case study teaching notes Trans -European Plastics TEP makes a range of more than 500 plastic household items using batch injection moulding.The case highlights increasing problems with inventory shortages and declining service levels‚at the same time that total inventory levels were at a high level. The company was evenconsidering investing in a warehouse extension. This case allows students to explore theunderlying reasons for this situation‚ and there is considerable numerical data that can
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allowing it to be made into reusable containers. It has minor chain stiffening which contributes to its moderate rigidity which makes it suitable for plastic cutlery. It is non-polar and will not dissolve in polar substances such as water and is relatively resistant to hydrolytic degradation. This differentiates PHB from other biodegradable plastics which are either water soluble or moisture sensitive. This property also allows PHB to be made into packaging material. PHB is biocompatible and hence
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relative to processing polymers into high tensile strength plastic substrates. Sensing the commercial applications for his patents‚ Dr. Riordan started Riordan Plastics‚ Inc. in 1991. Initially‚ the company’s focus was on research and development and the licensing of its existing patents. (Apollo Group‚ 2006) However‚ in early 1992‚ Dr. Riordan‚ faced with high demand and short supply for the patented
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friendliness. Being dry‚ the powder overspray can be reclaimed for very high application efficiency. It uses heat to convert its state from a powder to a continuous film. The powder coating materials are basically plastics that have been ground into a fine powder. The coating powder is formulated with plastic resins‚ pigments‚ flow agents and other special ingredients to provide the desired characteristics of the coating film. There are two basic classifications of powder coating materials. They are "thermoplastic"
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