Silicone rubbers flame retardancy

Flame-retardant silicone rubber, 22 584 Flame spray coatings, 5 665 Flame temperature, 12 322 Flame temperature, 7 443 Flame throwers, 5 824 Flame working, of vitreous silica, 22 415-416... [Pg.363]

The chemicals used for coating and laminating are polymeric materials, either naturally occurring or produced synthetically. These include natural and synthetic rubbers, polyvinyl chloride, polyvinyl alcohol, acrylic, phenohc resins, polyurethanes, silicones, fluorochemicals, epoxy resins and polyesters." Coating formulations typically include auxiliaries such as plasticizers, adhesion promoters, viscosity regulators, pigments, fillers, flame retardants, catalysts and the like. ... [Pg.24]

Elastomers. Many applications of rubbers such as tires, gaskets, and washers normally do not require flame resistance. When improvement in flammability is required, it can be achieved by the addition of halogen-containing materials, phosphorus compounds, oxides of antimony, and combinations of these materials. Rubbers containing chlorine and silicon atoms, for example. Neoprene and Silicone, have self-extinguishing properties. Rogers and Fruzzetti (10) described the flame retardance of elastomers. [Pg.317]

CAS 21645-51-2 EINECS/ELINCS 244-492-7 Uses Flame retardant, smoke suppressanL processing aid, water resist, aid, antistat for wire/cable, elec, insulators, printed circuit boards, potting resins, molded and extruded polyolefins, flooring compds., conveyor belting, fabric coatings, polyester and aciylic pultrusion compds., thermosetting resins (BMC, SMC), PVC, EVA, EPDM, XLPE, EEA, thermoplastic elastomers, silicone rubber, NR, SR, acrylic resins, unsat. polyesters... [Pg.489]

Chem. Descrip. Decabromodiphenyl oxide CAS 1163-19-5 EINECS/ELINCS 214-604-9 Uses Flame retardant for PS in TV and VCR cabinets, thermoplastic and thermoset polyesters, epoxies, nylon, PC, PP, PE, TPE, thermoplastic PU, silicone, PVC, EPDM, syn. rubber, phenolics, textiles, paints, hot-melt adhesives, wire and cable applies. [Pg.724]

It has been demonstrated that the combination of zinc borate and ATH can be used as an effective flame retardant and smoke suppressant in halogen-free polymers such as EVA, polyethylene, EPDM, ethylene-ethyl acrylate copolymer (EEA), epoxy, and acrylics. In some pol5miers such as silicone rubbers, zinc borate used alone is very effective as a fire retardant. [Pg.23]

Kong et al. [115] synthesized hy melt-intercalation silicone rubber (SR)/clay nanocomposites using synthetic Fe-montmoriUonite (Fe-MMT) and natural Na-MMT which were modified by cetyltrimethylammoniumbromide, surfactant. They obtained exfoliated and intercalated nanocomposites. With TGA and mechanical performance found that with the presence of iron significantiy increased the onset temperarnre of thermal degradation in SR/Fe-MMT nanocomposites. In addition, the thermal stability, gel fraction and mechanical property of SR/Fe-MMT were different from the SR/Na-MMT nanocomposites, so the iron not only in thermal degradation but also in the vulcanization process acted as an antioxidant and radicals trap. A new flame-retardant system, SR/Fe-OMT based on an EVA matrix, was examined Fang et al. [ 116]. The experimental analyses showed that the exfoliated Fe-OMT had better dispersion in the EVA matrix than Na-OMT, and it was more effective in improving... [Pg.177]

Yang, L. Hu, Y. Lu, H. Song, L., Morphology, Thermal, and Mechancal Properties of Flame-Retardant/Silicone Rubber/Montmorillonite Nanocomposites. [Pg.31]

Borax and boric acid have been used as flame retardants for many years in wood, paper and polyurethane foams. Zinc borate has been adopted by the plastics industry as an alternative to antimony trioxide as a synergist over the last 25 years. (It is effective by itself in silicone rubbers, but its main application in plastics is in combination with other flame retardants.) When combined with ATH it has beneficial results in polyethylene, EVA, EPDM, the acrylics and epoxy polymers. Reduced smoke emission can be achieved by using zinc borate to replace... [Pg.57]

Silicone rubber bums with a high char 5ueld, and the residual material is nonconducting silicon dioxide. The limiting oxygen index for a typical mbber formulation is about 20. Flame-retardant versions are available with oxygen index... [Pg.7609]

Some specific recent applications of the chromatography-mass spectrometry technique to various types of polymers include the following PE [130, 131], poly(l-octene), poly(l-decene), poly(l-dodecene) and 1-octene-l-decene-l-dodecene terpolymer [132], chlorinated polyethylene [133], polyolefins [134,135], acrylic acid, methacrylic acid copolymers [136, 137], polyacrylate [138], styrene-butadiene and other rubbers [139-141], nitrile rubber [142], natural rubbers [143,144], chlorinated natural rubber [145,146], polychloroprene [147], PVC [148-150], silicones [151,152], polycarbonates (PC) [153], styrene-isoprene copolymers [154], substituted PS [155], polypropylene carbonate [156], ethylene-vinyl acetate copolymer [157], Nylon 6,6 [158], polyisopropenyl cyclohexane-a-methylstyrene copolymers [195], cresol-novolac epoxy resins [160], polymeric flame retardants [161], poly(4-N-alkylstyrenes) [162], pol)winyl pyrrolidone [31,163], vinyl pyrrolidone-methacryloxysilicone copolymers [164], polybutylcyanoacrylate [165], polysulfide copolymers [1669], poly(diethyl-2-methacryloxy) ethyl phosphate [167, 168], ethane-carbon monoxide copolymers [169], polyetherimide [170], and bisphenol-A [171]. [Pg.125]

L. Yang, Y. Hu, H. D. Lu, and L. Song, Morphology, thermal, and mechanical properties of flame-retardant silicone rubber/montmorillonite nanocomposites. Journal of Applied Polymer Science, 99 (2006), 3275-80. [Pg.236]

Blowing agents, color pastes, phosphate flame retardants, color pastes (silicone rubber)... [Pg.989]

Zinc oxide is a crystalline, odorless, and white or yellowish white powder. It absorbs carbon dioxide from the air, has high UV absorption, and is used as an antiseptic additive. It is insoluble in water and alcohol but soluble in acid, ammonium carbonate and alkali hydroxide solutions. Zinc oxide is used as a filler and accelerator-activator in rubber and plastics. It improves resistance to weathering when used with polypropylene, promotes hardness, flame retardant, and electrical conductivity to polymers, and has been used in silicones, polyesters, and polyolefins. [Pg.29]

A very high proportion of the usage of silicone rubbers is associated with electrical applications, particularly wire and cable for the electrodomestic appliance and automotive industries. The inherent properties of silicone rubber make it a natural choice in areas such as safety (flame retardant) cables and food contact applications. Examples of the latter uses are given. In addition reference is made to automotive hose, electrically conductive applications, dynamic seals and medical implants. [Pg.203]

Although silicone rubber because of its basic inorganic nature burns less readily than most halogen-free organic rubbers, its burning characteristics are readily modified. The traditional halogen-containing flame retardant... [Pg.209]

Silicone rubber insulated cables have been developed which meet the stringent requirements of the lEC 331 specification, including the all important 3 h flame test. In this test the cable is required to function for 3 h at working voltage in a gas flame of 750 °C. In addition, silicone cable is available which meets BS4066 and IEC332 requirements for flame retardant cables. Silicone rubber also has a low calorific value (3 8 kcal/g) which when combined with the other features described above makes it a natural choice for cable insulation in many other applications. [Pg.228]

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