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2. Injection-foaming processes
Injection-foaming processes for producing microcellular polymeric materials have been extensively analyzed over the last thirty years . The microcellular structure is formed by the nucleation, growth and sometimes coalescence of bubbles in the polymer matrix. Gas is introduced into the polymer matrix either chemically or physically. In the physical route, inert gases, carbon dioxide (CO 2 ) or nitrogen (N 2 ), are introduced directly into the polymer. In the chemical route, the gas is obtained from the decomposition reaction of chemical blowing agents that are mixed with the polymer. Both elaboration...
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...Standards and norms
- AFNOR Plastics – Determination of tensile strength - NF EN ISO 8256-1 AFNOR - 2005
- AFNOR Plastics – Determination of compression properties - NF EN ISO 604 AFNOR - 2004
- AFNOR Plastics – Determination of Izod shock resistance - NF EN ISO 180 AFNOR - 2001
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Nabeth, B.et al, Polypropylene resin formulation, FR 2, 978, 444.
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