office in Port Murray, N.J.) recently unveiled what is believed to the first HDPE for foamed communication cable that is free of azodicarbonamide (ADCA) blowing agent
. New HE4883 is a fully formulated HDPE compound containing a blowing agent
for physically foamed data-cable insulation.
Shojaei-Zadeh and Fechtmann fabricated microporous, open-cell foam of a hierarchical structure from a mixture of a foamable liquid polymer such as silicone rubber, a curing agent, a blowing agent
and a filler.
'UNEP is assisting the Kingdom to adopt new, more energy efficient blowing agent
technology which will help the nation meet its energy targets.'
Solid C[O.sub.2], so called dry ice, is of interest as blowing agent
for polymer foams as the dosage in form of pellets allows introducing the blowing agent
over the material feed.
The rubber layer includes an elastomer composition based on at least an elastomer, e.g., natural rubber or butyl rubber; a reinforcing filler, e.g., silica and/or carbon black; between 10 and 80 phr of a blowing agent
, e.g., an azodicarbonamide compound; and between 10 and 50 phr of a hot-melt compound with a melting point between 70[degrees]C and 150[degrees]C, e.g., urea.
New Jersey USA-based avionics technology and manufacturing firm Honeywell (NYSE: HON) said that its Solstice Liquid Blowing Agent
has been selected as a component in the spray foam roofing system for the Cleveland Airport System including multiple terminal and maintenance buildings at Cleveland-Hopkins International and Burke Lakefront airports.
"Honeywell is committed to building on its strong history of innovation to meet new challenges." The new blowing agent
being developed is a non-flammable liquid that will assist customers in reducing the overall environmental impact of foam.
The Honeywell material, which should be available in sample quantities later this year, is a non-flammable liquid that the company says will offer performance benefits comparable to those of other fluorocarbons, but with a low global-warming potential, in addition, the blowing agent
will have an atmospheric lifetime of just a few days.
Honeywell today said it is developing a new blowing agent
for energy-efficient polyurethane foam insulation with lowered greenhouse gas emissions.
A third substance, often a CFC, is then added as a "blowing agent
." This agent vaporizes at the reaction temperature, releasing gas bubbles into the molten plastic.