125I Disk Source Using Charcoal Activated Polyurethane Foam Rubber Mat.
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چکیده
منابع مشابه
Anisotropic polyurethane foam
Anisotropic polymer foams have been prepared, which exhibit a Poisson's ratio exceeding 1, and ratios of longitudinal to transverse stiffness exceeding 50. The foams are as much as 20 times stiffer in the longitudinal direction than the foams from which they were derived. The transformation process involved applying a uniaxial stress sufficient to produce 25% to 45% axial strain to open-cell po...
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In the material handling business original equipment manufacturers, lift truck dealers and distributors find themselves marketing polyurethane and rubber tires simultaneously. To achieve optimum performance one needs to better understand the attributes of each product. In this article, both products will be broadly compared along with their proper application, with an emphasis on polyurethane t...
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Methylene chloride and CFCs are used as auxiliary blowing agents in the manufacture of flexible polyurethanefoams and are promptly emitted during the manufacturing processes.The concentrationof the auxiliary blowing agent are quite low due to the accepted practice of using large volumes of air to lower the ambient concentration of toxic isocyanates (a key chemical in the urethane reaction seque...
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ژورنال
عنوان ژورنال: RADIOISOTOPES
سال: 1992
ISSN: 1884-4111,0033-8303
DOI: 10.3769/radioisotopes.41.23