ASTM F814-83 PDF
A Withdrawn Specification for Seamless Carbon Steel Boiler Tubes FB Test Method for Specific Optical Density of Smoke Generated by. Test according to ASTM E Standard Test 6, 28, 2 3. Specific optical density. 0, 1, 0, 2, 1, 8, 3, 7, Astm F 83 Pdf 13 DOWNLOAD. washer must be held between two inch ( 13 mm) nuts that are adjusted to tightly. (ASTM) Standard Test Method ASTM.
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Flame retardant FR polycarbonates and polycarbonate blends with UL V0 and 5V A and B Underwriters Laboratories flammability ratings are widely prepared and used, especially in a wide variety of electrical and electronic applications. They pass the OSU flame testing with 2-minute values of less than 65 and the OSU peak testing with values of less than 65 but perform very poorly in the smoke test exceeding the target of less than with f8148-3 ofand This test method uses a photometric scale to measure the density of smoke generated by the material during burning.
These branching agents include polyfunctional organic compounds containing at least three functional groups selected from hydroxyl, carboxyl, carboxylic anhydride, haloformyl, and mixtures of the foregoing functional groups.
In a specific embodiment, X a is a substituted C cycloalkylidene of formula Heat deflection temperature was measured on an annealed 3. Flame retardant polycarbonate compositions, methods of atm, and articles formed therefrom. The t814-83 of additives is thus given in parts by weight per hundred parts by weight of the resins PHR.
In an embodiment, R c and R d taken together is a C cyclic alkylene or a heteroatom-containing C cyclic alkylene comprising carbon atoms and heteroatoms with a valency of two or greater. Title 14 Part 25 Subpart I. The composition can then be foamed, extruded into a sheet or optionally pelletized.
Branched polycarbonate ast can be prepared by adding a branching agent during 8f14-83. These include monocyclic, mono-carboxylic acid chlorides such as benzoyl chloride, C 1 -C f81-83 alkyl-substituted benzoyl chloride, toluoyl chloride, halogen-substituted benzoyl chloride, bromobenzoyl chloride, cinnamoyl chloride, 4-nadimidobenzoyl chloride, and combinations comprising at least one of the foregoing; polycyclic, mono-carboxylic acid chlorides such as trimellitic anhydride chloride, and naphthoyl chloride; and combinations of monocyclic and polycyclic mono-carboxylic acid chlorides.
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The first polycarbonates, optional third polycarbonates, and additional polycarbonates can be manufactured by interfacial polymerization or melt polymerization processes.
In some embodiments a combination of two or more different brominated polymers are used to obtain the desired properties. Similarly, a poly siloxane-carbonate can be used with a poly siloxane-etherimide to improve impact. Alkyl-substituted phenols with branched chain alkyl substituents having 8 to 9 carbon atoms can be specifically asfm.
Such materials should also advantageously maintain excellent physical properties, such as toughness high impact strength and high ductility. Smoke density D s at 4. In still other embodiments, it has been found that limiting the amount of the optional third polymer, together with use of specific first and second polycarbonates can produce compositions with advantageous properties. This result illustrates once again that the presence of siloxane in the blend is necessary to achieve consistent smoke performance pass values.
NBS Smoke Density Chamber, Smoke Toxicity Chamber, ASTM Smoke Density Chamber
Results are in Table 8. Particular requirements include smoke density, flame spread, and heat release values. The data in Table 7 shows the effect of TiO 2 on the smoke density performance of a composition with and without poly siloxane-carbonate present. The results are shown in Table 6.
Govmark Fire & Flammability Test Instruments
In an embodiment, the transparent polycarbonate compositions are used for the manufacture of balcony components, balusters for stairs and balconies, ceiling panels, covers for life vests, covers for storage bins, dust covers for windows, layers of an electrochromic device, lenses for televisions, electronic displays, gauges, or instrument panels, light covers, light diffusers, light tubes and light pipes, mirrors, partitions, railings, refrigerator doors, shower doors, sink bowls, trolley cart containers, trolley cart side panels, windows, or the like, particularly in aircraft, marine transports, or trains.
On the other hand, the presence of aliphatic ester units can diminish the heat release values. In an embodiment, the polysiloxane comprises R groups that have minimum hydrocarbon content.
The reactor was purged with nitrogen then the batch was transferred to the centrifuge feed tank. The siloxane blocks t814-83 an average of 5 to units.
Heteroatoms in the heteroatom-containing cyclic alkylene group include —O—, —S—, and —N Z —, where Z is a substituent selected from hydrogen, hydroxy, C alkyl, C alkoxy, or C acyl. Centrifuge one removed the brine phase. Some illustrative examples of dihydroxy compounds include the axtm Of course, two or more different poly siloxane copolymers can be used with two or more different brominated polymers.
The Mw is about 23, Daltons. A specific heteroatom-containing cyclic alkylene group comprises at least one heteroatom with a valency of 2 or greater, and at least two carbon atoms.
Flame retardant thermoplastic polymer composition, method of manufacture, and articles formed therefrom. Polycarbonate-polysiloxane copolymer compositions for mobile phone housing applications. In an embodiment, two adjacent groups e. The composition of claim 1wherein the polysiloxane bisphenol 2 has the formula:. In some embodiments a combination of two or more different poly siloxane copolymers, in particular two awtm more different poly siloxane-carbonate s are used to obtain the desired properties.
Density is a critical factor in aircraft components, and the polycarbonate compositions can be formulated to have lower aetm, in particular a density of 1. The first, second, and optional third polycarbonate are further selected and used in amounts effective to satisfy the heat release rates described in FAR F The above described and other features are exemplified by the following Detailed Description and Examples.
Branched brominated polycarbonate oligomers can also be used, as can compositions of a linear brominated polycarbonate oligomer and a branched brominated polycarbonate oligomer. The mixture was transferred to the batch reactor. In a further advantageous feature, the combinations can be transparent.
There is considerable overlap among these types of materials, which include phthalic acid esters such as dioctyl-4,5-epoxy-hexahydrophthalate; tris- octoxycarbonylethyl isocyanurate; tristearin; di- or polyfunctional aromatic phosphates such as resorcinol tetraphenyl diphosphate RDPthe astmm diphenyl phosphate of hydroquinone and the bis diphenyl phosphate of bisphenol A; poly-alpha-olefins; epoxidized soybean oil; silicones, including silicone oils; esters, for example, fatty acid esters such as alkyl stearyl esters, e.
Use of a combination of these two poly siloxane-carbonate s can provide a composition having both good colorability and impact properties.
Special Federal Aviation Regulation No.
In an embodiment, the poly siloxane-carbonate comprises units derived from polysiloxane bisphenols 14 as described above, specifically wherein M is methoxy, n is 0 or 1, R 3 is a divalent C aliphatic group, and R is methyl, still more specifically a polysiloxane bisphenol of formula 15 or In an embodiment, D is a C alkylene having a straight ast, branched chain, or cyclic including polycyclic formula. In another embodiment, an effective amount of phase transfer catalyst can be 0.