Fire retardants | additives feature
stable foam barrier when exposed to fire. This acts as a barrier and reduces heat release rates and prevents the propagation of fire. Perstorp says that Charmor PP100 allows the
production of FR formulations that have a lower density than those based on minerals. The additive has a low melting point and excellent polymer compatibility. “Being a polymer, Charmor PP100 becomes part or
the polymeric system,” explains Perstorp’s market development manager, David James. “This fact improves flow during thermoplastic processing and gives more robust, reproducible and reliable mechani- cal and fire properties.” NASA Kennedy Space Center scientists Martha Williams and Trent Smith have discovered that inher- ently flame-retardant thermoplastic polymers polyhy- droxyamide (PHA) and polymethoxyamide (PMeOA) can be useful as an additive to impart flame retardant properties to other compatible thermoplastics such as nylons, polyesters, styrenics, acrylics and some elastomers. Compared to traditional FR additives, PHA and PMeOA have minimal impact on the mechanical properties of the matrix polymer, and have been shown
to actually enhance them in some cases. Also, they do not decompose into corrosive or toxic compounds during combustion and they can be processed at elevated temperatures. The physical and chemical mechanisms which impart flame retardancy of these additives include their inhibition of free radical oxidation in the vapour phase,
Great Lakes is targeting
Emerald 3000
at EPS and XPS applications
such as building insulation
Conductive Carbon Blacks
r
ENSACO® conductive carbon blacks will bring electrical conductivity to polymers in fields like electronic packaging, fuel hoses, flooring, power cables and accessories, conveying and transmission belts.
TIMCAL Ltd. Headquarters Strada industriale, CH-6743 Bodio, Switzerland
Graphites Expanded Graphites
r r
TIMREX® graphites will bring thermal conductivity, electrical conductivity, lubrication and anti-wear to polymers in fields like seals,water-meters, heat-exchangers, protective coatings, primers for electrostatic painting.
Tel. +41 91 873 2010 Fax +41 91 873 2009
info@ch.timcal.com
www.timcal.com
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