fluorocarbons


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fluorocarbons

Various organic compounds in which fluorine replaces hydrogen. The fluorocarbons are widely used as aerosol propellants, refrigerants and solvents and their release into the atmosphere is believed to offer a grave threat to the ecology of the planet because of their catalytic effect on the ozone layer. See also CHLOROFLUOROCARBONS.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
References in periodicals archive ?
Fluorocarbons have a global warming potential of up to ten thousand times that of carbon dioxide, and the amount of fluorocarbon emissions worldwide is approximately 900 million tons per year when converted to carbon dioxide.
- Hence, fluorocarbons segment is likely to account for the highest market share during the forecast period.
Recycling of these materials are appropriately, smoothly, and efficiently conducted by consigning the treatment to Japan Auto Recycling Partnership as for airbags and fluorocarbons, and to Automobile Shredder Residue Recycling Promotion Team*2 as for ASR.
Gamma Edge has a lot more sensitivity than most fluorocarbons. It's a little denser and I can feel light tics deep in the water column.
Representing Pakistan at 11th Conference of Parties to the Vienna Convention for the protection of the Ozone layer and the 29th meeting of the parties to the Montreal Protocol on Substances that deplete the Ozone layer being held in Montreal, Canada, the minister said 'in the first phase of the hydro fluorocarbons phase out management plan, we have phased out hydro fluorocarbons from all major foam industry.'
It is on average up to 50% cheaper than alternative fluorocarbon formulations being proposed as alternatives and much more cost effective than water based processes.
"The fluorocarbons market remains the most dynamic sector of the fluorochemical industry for two reasons: first, the evolving regulations aimed at protecting the ozone layer and reducing global warming, and, second, a sharp contrast in the outlook between developed and developing countries," said analyst Ryan Sullivan.
developed moisturecurable silicone fluorocarbons by reacting oxamido ester-terminated silicones and fluorocarbon amines with moisture-curable groups.
Until now, says fluoride consultant Ebnesajjad, the only sources of information about fluoropolymers and fluorocarbons have been snippets here and there in studies of other matters, and brochures from commercial manufacturers.
Besides the actual coating or finishing, additional fluorocarbons are used in almost each of the mentioned applications.
Flashless molding is said to be extremely valuable when working with high performance elastomers such as fluorosilicones and fluorocarbons. All machines purchased have been equipped with dual material feed systems, eliminating downtime for material changes and increasing flexibility in production.