FOAM TECHNOLOGY
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PPI is actively involved in the development of high-performance foam products from industrial to pharmaceutical polymers, utilizing both chemical and physical blowing agents, such as CO2, N2, hydrocarbons, HCFCs, HFOs, NaHCO3 etc.
PPI’s foam production capabilities are:
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PPI is capable of production of foam samples with various densities using chemical and physical blowing agents. Samples are loaded into a mold and placed between the plates of a Carver press kept at a specific temperature. The blowing agent is then introduced to the mold for a certain amount of time. The gas pressure is then released rapidly. Due to the sudden pressure release and resulting thermodynamic instability of the polymer-gas system, cells are nucleated and a cellular structure is produced.
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Extrusion Foaming
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Various extrusion systems are available for production of low/medium/high density foams:
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Tandem Line Extrusion (low-medium density foam)
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Twin Screw Extrusion (low-high density foam)
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Expandable Beads and Mixing Technology
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A sintering unit which consists of a steam generator and various molds is used to produce a variety of expanded foam products from expandable beads. Seamless and complex geometries can be produced using this technique where no secondary process, such as thermoforming or welding will be required.
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Polymer Property Measurements For Foam Feasibility
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Off-line solubility measurements
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Extensional Viscosity (Melt Strength)
Foam Characterization
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Mechanical and Thermal Properties
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For more information please contact: ​​
Niloufar Faridi
Faridi@polymers-ppi.org
973-596-5665