Natural rubber is obtained from native trees in South America called Hevea. These trees grow up to a height of about 24 meters, to provide the carbon dioxide needed for the growth of these trees and also an essential component for tires. There are other trees, shrubs and bushes from which natural rubber is produced, …
Accelerators are among the materials that are used during the polymerization process of a polymer. The main task of accelerators is to help synthesize rubber during the curing process, which is also called sulfur curing. Polymer accelerators are used to produce various types of rubber such as isoprene, styrene, butadiene and NBR. Types of accelerators: …
Considering the existence of internal (within the company) and external (macro environment) issues and problems in the material supply chain and especially in critical situations, in this article, a conceptual method has been tried by (Singh & Verma, 2018) for the problem related to management. The inventory of the proposed chain should be described. In …
Ethylene-propylene rubber was first made available in small amounts in the United States in 1962. Small quantities were made in Italian and American labs between 1954 and 1960. Although commercial manufacturing of ethylene-propylene rubber only started in 1963, it currently has the highest growth rate. History of EPDM: The history of this rubber is intertwined …
The history of acrylic rubber goes back to the synthesis of acrylic acid and methacrylate acid in the middle of the 19th century. But the manufacturing potential associated with acrylics was revealed around 1901 when the German chemist Otto Rohm (1876-1939) published his research on acrylic esters. Later, around 1930, the synthesis of compounds related …
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