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Moisture in Crumb Rubber

From Process Sensors Corp.
 

 
Optimizing moisture levels not only increases yield, but also the efficiency of the drying operation. The first stage of this process involves the polymerization of butadiene and styrene polymers to form a milky white emulsion termed Latex. The reaction is stopped before completion, owing to a fall off in the reaction rate. Quality of product and monomers are recovered from the latex stream prior to it being stored. In the second stage, latex is pumped to coagulation vessels where brine and diluted sulfuric acid are added. This causes the emulsions to break, releasing the styrene-butadiene copolymer. The crumb and brine acid slurry is separated by screens, and the crumb is pressed before being dried on a belt dryer. The dried product is baled and weighed.
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Pressure sensitive adhesives (PSA) and contact adhesives adhere to most surfaces with very slight pressure. They are available in solvent and latex or water-based forms. Search by Specification | Learn more about Pressure Sensitive Adhesives (PSA) and Contact Adhesives
Foams and foam materials are industrial products made from low density elastomers, plastics, and other materials with various structures and porosities. Search by Specification | Learn more about Foams and Foam Materials
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Monomers, intermediates, and base polymers are starting raw materials or binders for the production of compounded resins, plastics and elastomers, paints or organic coatings, adhesives and sealants; Learn more about Monomers, Intermediates and Base Polymers
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Topics of Interest
V. EMULSION POLYMERIZATION A. Mechanism and Kinetics Polymerization in aqueous emulsions, which has been widely developed technologically, represents a special case of free radical chain... (Read More)
4.4 Polymer Emulsion A polymer emulsion is principally a dispersion of organic polymer particles in water [8, 20, 30]. Indeed a latex normally comprises a dispersion of fine particles in an... (Read More)
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