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Blowing agent physical

PE/PP (25 %), rubbers (including EVA) (20 %) and other thermoplastics (5 %). Physical blowing agents (PBAs) liberate gases as a result of physical processes (evaporation, desorption) at elevated temperatures or reduced pressures. PBAs are mostly volatile liquids, freons, aliphatic hydrocarbons or solid blowing agents. [Pg.776]

Physical blowing agents are low boiling point organic compounds (e.g., dichloromethane or... [Pg.14]

Foaming can be achieved by chemical or physical blowing agents. [Pg.290]

Dallas, Texas, 6th-10th May, 2001, paper 460 DEVELOPMENT OF AN EXTRUSION SYSTEM FOR FINE-CELLED FOAMING OF WOOD-FIBER COMPOSITES USING A PHYSICAL BLOWING AGENT... [Pg.44]

Carbon dioxide gas was used as a physical blowing agent to produce medium density polypropylene foam sheets using a single screw extruder. The mechanical properties of the foam were similar in the machine direction and in the transverse direction. Abetter surface finish and a lower density was produced by using a commercial wrapping film as a cap layer. The process conditions and the die design data are presented and an attempt made to relate them to the product characteristics. 4 refs. [Pg.85]

EFFECT OF PHYSICAL BLOWING AGENTS ON CRYSTALLISATION TEMPERATURE OF POLYMER MELTS... [Pg.98]

INFLUENCE OF THE TYPE OF PHYSICAL BLOWING AGENT ON THE PROCESS OF FOAM FORMATION FROM PE MELT... [Pg.114]

See other pages where Blowing agent physical is mentioned: [Pg.505]    [Pg.505]    [Pg.499]    [Pg.653]    [Pg.689]    [Pg.201]    [Pg.205]    [Pg.206]    [Pg.251]    [Pg.146]    [Pg.766]    [Pg.395]    [Pg.96]    [Pg.96]    [Pg.98]    [Pg.137]    [Pg.497]    [Pg.331]    [Pg.674]    [Pg.165]    [Pg.32]    [Pg.33]    [Pg.34]    [Pg.44]    [Pg.56]    [Pg.61]    [Pg.71]    [Pg.74]    [Pg.74]    [Pg.77]    [Pg.98]    [Pg.241]    [Pg.163]    [Pg.410]    [Pg.145]    [Pg.1687]    [Pg.91]    [Pg.174]    [Pg.165]    [Pg.217]    [Pg.675]    [Pg.233]   
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See also in sourсe #XX -- [ Pg.606 ]

See also in sourсe #XX -- [ Pg.204 ]

See also in sourсe #XX -- [ Pg.47 ]

See also in sourсe #XX -- [ Pg.179 ]

See also in sourсe #XX -- [ Pg.625 , Pg.629 , Pg.649 ]



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