The Use of Plastic Foam in Metal Sailplane Construction

1975 ◽  
Author(s):  
Richard E. Schreder
Keyword(s):  
Plastic Foam

Treatment of Different Wastewaters from Pulp and Paper Industry in Methane Reactors

1985 ◽  
Vol 17 (1) ◽  
pp. 223-230 ◽  
Author(s):  
P K Latola
Keyword(s):  
Power Plant ◽  
Paper Industry ◽  
Granular Sludge ◽  
Paper Mill ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Plastic Foam ◽  
Loading Rates ◽  
Multi Stage ◽  
Removal Efficiencies

A wastewater from an integrated paper mill with a COD of 1200 mg/dm3 was anaerobically treated in a multi-stage reactor. The BOD7 removal efficiencies of 60-75 % were achieved at maximal loading rates of 5-6 kg COD/m3d and HRT of 4-6 hours due to the granular sludge. Industrial sulphite evaporator condensates from Ca- and Na-processes were treated in anaerobic filters containing light gravel, plastic foam and power plant slag as filter media. The BOD7 removals of 78 % on average were achieved at loading rates of 1.8-3.3 kg COD/m3d with Ca-process evaporator condensates and 80 % BOD7 removals were achieved with Na-process condensates at loading rates of 3.5-4.1 kg COD/m3d.

Closure to “Local Failure of Plastic-Foam Core Sandwich Panels”

1970 ◽  
Vol 96 (8) ◽  
pp. 1803-1805
Author(s):  
Billy J. Harris ◽  
Gene M. Nordby
Keyword(s):  
Sandwich Panels ◽  
Local Failure ◽  
Foam Core ◽  
Plastic Foam

Local Failure of Plastic-Foam Core Sandwich Panels

1969 ◽  
Vol 95 (4) ◽  
pp. 585-610
Author(s):  
Billy J. Harris ◽  
Gene M. Nordby
Keyword(s):  
Sandwich Panels ◽  
Local Failure ◽  
Foam Core ◽  
Plastic Foam

The Role of Chlorine in Stratospheric Chemistry

1996 ◽  
Vol 68 (9) ◽  
pp. 1749-1756 ◽  
Author(s):  
M. J. Molina
Keyword(s):  
Laboratory Experiments ◽  
Stratospheric Ozone ◽  
The Sun ◽  
Plastic Foam ◽  
Model Calculations ◽  
Stratospheric Chemistry ◽  
Blowing Agents ◽  
Stratospheric Ozone Layer ◽  
The Earth

The chlorofluorocarbons (CFCs) are industrialchemicals used as solvents, refrigerants, plastic foam blowing agents,etc. These compounds are eventually released to the environment; theyslowly drift into the stratosphere, where they decompose, initiatinga catalytic process involving chlorine free radicals and leading toozone destruction. The stratospheric ozone layer is important for theearth's energy budget, and it shields the surface of the earth fromultraviolet radiation from the sun. Very significant depletion of theozone layer has been observed in the spring months over Antarctica duringthe last 10-15 years. Laboratory experiments, model calculations andfield measurements, which include several aircraft expeditions, haveyielded a wealth of information which clearly points to the CFCs asthe main cause of this depletion.

scholarly journals Advancing Plastic Foam Technology

Seikei-Kakou ◽  
2018 ◽  
Vol 30 (6) ◽  
pp. 223-223
Author(s):  
Masahiro Ohshima
Keyword(s):  
Plastic Foam
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