Elastomers smoke suppressants

Smoke flavoring, 12 48 Smoke generation tests, 19 588 Smoke point, of fats and oils, 10 822 Smoke retardants, molybdenum compounds in, 17 39 Smoke suppression, by ethylene-acrylic elastomers, 10 700 Smoking, age-related macular degeneration and, 17 659 Smoky quartz color, 7 337... 

Many other reports have demonstrated the smoke suppressing tendencies of hydrated fillers in various polymers including ethylene-propylene-diene elastomers,43 PP,38 polystyrene,49 modified polyphenylene oxide, polybutylene terephthalate, and ABS.37 In addition to suppressing smoke generation, a delay in the onset of smoke evolution is also achievable.25 Figure 7.5 illustrates smoke reductions obtained in PP. 

Elastomers The zinc borate is an effective synergist of halogen sources and smoke suppressants in elastomers such as styrene butadiene rubber (conveyor belting, flooring), neoprene (wire and cable, dampening compound, conveyor belt), EPDM and PVC-nitrile foam (insulation foam), and so on.55 It has also been used in halogen-free silicone elastomer and EPDM, EP (in conjunction with ATH or MDH). 

Versamag . [Mtxton Int l.] Magnesium hydroxide filler, fire retardant smoke suppressant for plastics, thermosets, elastomers. 

CAS 21645-51-2 EINECS/ELINCS 244-492-7 Uses Smoke suppressant, flame retardant, filler for PVC and XLPE wire/ cable insulation, SBR compds., epoxies, silicones, elastomers, neoprene foam, vinyl sheet flooring, adhesives, coatings, paints, polishes Pn rerties Superfine powd. 3.5 p avg. particle diam. sp.gr. 2.42 surf, area 8 m /g oil absorp. 32 brightness (TAPPI) 95 ref. index 1.57 hardness (Mohs) 2.5-3.5... 

Chem. Descrip. Zinc borate CAS 1332-07-6 EINECS/ELINCS 215-566-6 Uses Flame retardant, smoke suppressant for plastisols, coatings for cellulosics, textiles, and adhesives synergist in PVC and halogenated polyester formulations, and in elastomers, thermoplastic elastomers, polyamides, and polyolefins strong char promoter Properties Wh. free-flowing powd., nonhygroscopic 6 p avg. particle size 99.9% < 30 p sol. 0.5 g/100 ml water sp.gr. 2.50 bulk dens. 18.1 Ib/ff oil absorp. 39 ref. index 1.48 Zb -237 [Great Lakes]... 

Chem. Descrip. Zinc borate CAS 1332-07-6 EINECS/ELINCS 215-566-6 Uses Flame retardant, smoke suppressant for plastisols, coatings for textiles, adhesives synergist in PVC and halogenated polyester formulations, and in elastomers, thermoplastic elastomers, polyamides, and polyolefins strong char promoter... 

Properties Sol. 4 ml in water dens. 3.18 dec. pt. 250 C Uses Flame retardant, smoke suppressant in polymers, esp. PVC and unsat. polyesters, thermoplastic elastomers, wire and cable applies., wall coverings, upholstery ManufJDistrib. Climax Molybdenum Pacific West Trade Names Charmax AOM... 

Hydiar Series, Thermoplastic and elastomer aramid resins, blends, Hyde, A. L., Co. Hydra-Jaws, Quick mold change systems, American Aerostat Cotp./Tech-RX Hydra-Latch, Quick mold change systems, American Aerostat Corp./Tech-RX Hydral, Hydrated aluminas, flame-retardant, smoke suppressant additive, Alcoa Industrial Chemicals... 

Description White crystalline powders using release of water on heating to give high performance flame retardant and smoke suppressant properties to a wide range of plastics and elastomers median particle size 5-80 pm coatings include silanes, stearates, and plasticizers ... 

However, as far as plastics are concerned, commercial interest in the use of tin-based flame retardants has only developed over the past 10 years or so. Although it is estimated that over 600 000 tonnes of chemical additives are used worldwide annually as flame retardants for s)mthetic polymers, recent concerns about the toxic nature of certain additives have led to an intensified search for safer flame retardants. Hence, the generally low toxicity of inorganic tin compounds has been a major factor in their growing acceptance throughout the 1990s as flame retardants and smoke suppressants for plastics, elastomers and other polymeric materials. 

Major applications are vinyl and polyolefln cable jacket, imsaturated polyester resin (sanitary ware, coimter tops), cast artificial stone, elastomers such as conveyer belts, and carpet backing. ATH tends to suppress smoke as well as flame. The mode of action is believed to be attributable mainly to endothermic dehydration at about 230°C with 34.5% weight loss of water by 350°C, consuming... 

Firebrake zb is used as a flame retardant, smoke and afterglow suppressant, and anti-arcing agent in polymer systems such as polyvinyl chloride, nylon, epoxy, polyethylene, polypropylene, polyesters, thermoplastic elastomers and rubbers. 

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