Foamed plastics definition

The properties of commercial rigid foamed plastics are presented in Table 2. The properties of commercial flexible foamed plastics are presented in Table 4. The definition of a flexible foamed plastic is that recommended by the ASTM Committee D 11. The data shown demonstrate the broad ranges of properties of commercial products rather than an accurate set of properties on a specific few materials. Specific producers of foamed plastics should be consulted for properties on a particular product (137,138,142). 

This brief summary report describes the state of the art of all types of cellular materials, particularly plastics and elastomers. The report is organized in the form of a handbook and has an Introduction and sections on Types of Foams (Cellular Materials), Methods of Manufacture, Foam Properties, Solvent Cementing and Adhesive Bonding of Foams, Methods of Making Foams Conductive, and Applications. There are two Appendices, one on Standardization Documents (Test Methods, Practices and Specifications) and the other on Definitions. 

Definition Polymer of propylene oxide Formuia H(OCH2CHCH3)nOH, avg. n = 34 Properties Nonionic Toxicoiogy TSCA listed Uses Emollient, antistat, emulsifier for cosmetics, personal care prods. syn. lubricant oil and foam modifier for aerosol formulations in food-pkg. adhesives defoamer in food-contact paper coatings plasticizer in food-contact polymers boiler water additive (food contact)... 

Definition Sodium salt of cocoyl sarcosine Properties Anionic Toxicoiogy TSCA listed Uses Wetting agent, foaming agent, detergent in cosmetics, household and industrial prods., emulsion polymerization, pesticides, textiles, petrol, and lubricant prods. mold release antifog and antistat in plastics Manuf/Distrib. Nihon Surfactant http //www.ns-cosmos. co.Jp/e/... 

It will be necessary to describe the definition and measurement of the parameters used to quantify viscoelastic effects, in the sense that elastic moduli allow one to quantify elastic effects. For example how do you design the size of a torsional shaft when the pofymer creeps for a plastic bolt after it is tightened, how do you conqwte the rate of stress deca or, for the damping of mechankal vibrations what parameters would you require to design the pofyurethane foam used to control and dampen vibrations and resonances in a hi-fi tone arm ... 

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