Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Physical foaming

The production of foamed films and sheets from polypropylene and polystyrene is discussed, with particular reference to packaging applications. Advantages of foamed materials for this application are examined, and the chemical and physical foaming processes are described. Extrusion technology for film and sheet by chemical and physical foaming processes is discussed, and recent developments in the coextrusion of multilayer packaging trays for the food industry are considered. [Pg.45]

Mainz, Germany, 4th-5th Nov.1997, p.181-208. 6124 PROCESSING INNOVATIONS FOR NEW POLYMERS IN THE PHYSICAL FOAMING PROCESS Reimker M... [Pg.76]

On the other hand, syntactic materials may also be thought of as reinforced or filled plastics, with the gas-containing particles being the reinforcing component. This classification is also justifiable in view of the manufacturing technology. The matrix is not foamed chemically, but is filled mechanically with the hollow spheres. Syntactic foamed plastics are thus called physical foams 6,7). [Pg.67]

ABS with ASA and two SAN copolymers were foamed with a physical foaming agent easy formability, excellent physical properties and Freon resistance Kim and Choi, 1998... [Pg.29]

Introduction of a chemical or physical foaming agent into the polymer melt. [Pg.140]

Gendron, R. and M.F. Champagne, Effect of physical foaming agents on the viscosity of various polyolefin resins. Journal of Cellular Plastics, 2004. 40(2) p. 131 143. [Pg.337]

One physical foaming process involving glassy poly(ether imide)s and poly(ether sulfone)s using CO2 has been investigated. Two types of porosities were observed, closed microcellular and bicontinuous. In this work, the foaming behaviors of thin (-TSftM) extruded poly(ether Itnide) (PEI) and poly(ether sulfone) (PES) films were studied (Table I). [Pg.228]

See other pages where Physical foaming is mentioned: [Pg.1009]    [Pg.296]    [Pg.1278]    [Pg.158]    [Pg.33]    [Pg.34]    [Pg.37]    [Pg.76]    [Pg.103]    [Pg.897]    [Pg.164]    [Pg.9]    [Pg.59]    [Pg.175]    [Pg.2897]    [Pg.379]    [Pg.29]    [Pg.52]    [Pg.396]    [Pg.457]    [Pg.198]    [Pg.99]    [Pg.140]    [Pg.151]    [Pg.185]    [Pg.93]    [Pg.326]    [Pg.476]    [Pg.354]    [Pg.43]    [Pg.44]    [Pg.71]    [Pg.222]    [Pg.263]    [Pg.263]    [Pg.69]    [Pg.73]    [Pg.240]    [Pg.240]    [Pg.240]    [Pg.246]    [Pg.436]    [Pg.636]   
See also in sourсe #XX -- [ Pg.164 ]

See also in sourсe #XX -- [ Pg.318 ]



SEARCH



Foamed cell size, physical properties

Foaming agents physical

Foaming continuous physical

Foams physical chemistry

Foams physical properties

Physical Properties of Foams

Physical properties Flexible slabstock foam

Physical separations, foams

Plastic Foams Expanded with Physical Foaming Agents

Polystyrene foams physical properties

© 2024 chempedia.info