
recovering CFC-11 from polyurethane foam insulation from appliances retired through electric utility-sponsored DSM programs. The author describes the approach that was taken in the selection of the technology, the mechanics of the recovery process, and the results that have been achieved by this program.
CFC alternatives for thermal insulation foams - ScienceDirect
1990年3月1日 · Low density polymeric foam material expanded with chlorofluorocarbon (CFC) blowing agents have found widespread use as highly efficient thermal insulation materials in the construction, refrigeration appliance and transportation industries.
A mechanically robust chitosan-based macroporous foam for …
2025年3月15日 · In this work, we report a novel composite foam (CFC) by incorporating chitosan (CS), cellulose nanofibers (CNF) and iron oxyhydroxide (FeOOH) nanoparticles through a one-pot fabrication process.
Rigid Foam Insulation and the Environment - BuildingGreen
1992年7月1日 · Ozone depletion and global warming are two of our most serious environmental problems—and foam insulation materials containing CFCs (chlorofluorocarbons) contribute significantly to both of these problems. The environmentally concerned builder or designer should make it a highest priority to avoid them.
Chlorofluorocarbon (CFC) technologies review of foamed-board …
1990年3月1日 · CFCs harm the environment by depleting the ozone layer in the stratosphere. Thermal insulations are reviewed to introduce current rigid-foam insulation technology, and alternatives to meet the Montreal Protocol requirements are presented. Analyses of the energy-use impact from alternatives for building envelopes are described.
Carbon capture and storage CO2 foam concrete towards higher …
2025年3月1日 · This study introduces a novel strategy for carbon capture and utilization by incorporating CO 2 into foams to develop CO 2 foam concrete (CFC) with high performance. A conceptual design approach for CFC was first proposed by incorporating tailor-made CO 2 foam into an optimized cement-based paste.
Chlorofluorocarbon (CFC) Free Foam Suppliers - Thomasnet
2023年5月3日 · Manufacturer of packaging, polypropylene and polyethylene foam. Features include mold and mildew resistance, reusable, recyclable and HCFC free. Suitable for protecting finished wood, glass, plastic, ceramic painted or unpainted metals. Distributor of CFC-free polyurethane foams.
Thermal Conductivities of Alternatives to CFC-11 for Foam …
2001年2月7日 · The present work examines the thermal conductivities of several dilute vapors which are potential alternatives to chlorofluorocarbons (CFCs) for cellular-plastic foams.
What can be learned from CFCs and HCFCs? - Springer
This paper reviews the reasons for the likely future use of HFCs as manufacturers phase-out HCFC usage (and CFC usage in Developing Countries). Factors affecting this transition, such as the availability of liquid HFCs, are discussed.
Flame Retardant & Closed Cell Polyurethane Foam - General Plastics
FR-3700 is a CFC-free, rigid, closed-cell, flame-retardant polyurethane foam available in densities ranging from 3 to 40 pounds per cubic foot. It exhibits a high strength-to-weight ratio due to its cellular structure and cross-linked resin.
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