Extrusion foaming for the production of medium- and low-density thermoplastic foams has been carried out successfully for some time with physical blowing agents (PBAs).

To be specific, it determines the amount of gas that dissolves in the plastic sample and influences the pressure drop rate inside the chamber when gas is released to the surroundings to initiate foaming.

The Teledyne Isco syringe pumps pro- vide precise and accurate flow rates at a precision of 0.5% or better of setpoint over the reaction pressures of 50 to 2000 psi or higher.

Teledyne Isco high precision syringe pumps have been invaluable to this work in demonstrating organic chem- istries in the Spinning Tube-In-Tube (STT®) reactor.

Since the measure of gas dissolved in the polymer melt governs the cell morphology, accurate control of the amount of gas injected into the barrel is the most critical element in the process.

Exploring New Energy Concepts Using Teledyne Isco Syringe Pumps
Teledyne Isco Syringe Pumps are an excellent tool for development of alterna- tive fuels, from bench scale to pilot plant.

Injection of CO₂ into Plastic Extruders Using Teledyne Isco Syringe Pumps
Teledyne Isco Syringe Pumps are excellent for use as CO₂ injection pumps into plastic extruders.

Methane Hydrate Studies Using Teledyne Isco Syringe Pumps
Current research into the extraction of methane hydrates requires laboratory modeling of site condi- tions.

Current research concerns the amount of CO₂ move- ment in the geologic formation into which it is injected, and how CO₂ injection and storage impact the integrity of the formation.

Oil Sands, sometimes referred to as Tar Sands, are considered a source of unconventional oil, consisting of a molasses-like oil called bitumen, mixed with sand, which is much more difficult to recover and process than conventional oil.