The active content in these masterbatches is from 50 to 80%. has a full range of flame retardant masterbatches which are marketed under the brand name Areflam. Paraffin is a convenient binder for extrusion and molding applications. Chemtura produces both antimony oxide and organic flame retardants which are sold separately and in ready to use combinations. United States Antimony Corporation manufactures concentrates with up to 90% active component. Concentrates are produced by manufacturers and specialized companies. This is made by the addition of 3-4% plasticizer (DIDP, DOP, DINP, or ethylene glycol). The manufacturers offer a wetted grade of antimony oxide to reduce dust. These concentrations are recommended: PVC: Sb 2O 3 – 2-10 phr PP: Sb 2O 3 – 2-4 phr, brominated organic 4-22 phr ABS: 4:1 organo-Br/Sb 2O 3 HIPS: Sb 2O 3 – 4 phr, aromatic bromine – 12 phr, polyurethanes: 5-15 phr Sb 2O 3 and 5-15 phr halogenated compounds. The orthorhombic form decreases tint strength.ĭifferent formulations are needed for individual polymers (according to the manufacturer Amspec). The tint strength can also be affected by the crystalline form. The high tint strength grades usually have particle sizes in a range of 1.1-1.8 μm and the low tint strength grades have particle sizes in a range of 1.8-3 μm. Above this value, tint strength decreases as the particle size increases. If particle sizes are below 300 nm they fall below visible range. The tinting strength depends on particle size. At these temperatures, antimony halides and oxyhalides are formed and act as flame extinguishing moieties by quenching radicals as they form. For antimony oxide to work, the halogen and antimony oxide must be found in a vapor phase which will occur at temperatures above 315☌. The flame retarding action is thought to take place in the vapor phase above the burning surface. Many theories attempt to explain the mechanism of flame retardancy. MAJOR POLYMER APPLICATIONS: ABS, EPDM, epoxy, EVA, HIPS, PA, PBT, PET, PE, phenolics, polyurethanes, PP, PVAl, PVC, rubberĪntimony oxide is usually produced from stibnite (antimony sulfide) or by oxidizing antimony metal. MAJOR PRODUCT APPLICATIONS: coatings, electronics, paints, paper, plastics, textiles, rubber, UV resistant pigments VF (very fine), MP (micro pure), HT (high tint), LT (low tint) United States Antimony Corporation, Thompson Falls, MT, USA Nyacol 30-107, BurnEx 6220 (translucent, color pigment loading reduced by up to 50%)
Nyacol Nano Technologies, Inc., Ashland, MA, USA Sieve analysis: 325 mesh residue − 0.05-0.5%Īmspec Chemical Corporation, Bear, DE, USAĪmspec KR (excellent whiteness and tinting strength), Select (high purity with low levels of lead meets European requirements of RoHS Directive), LTS (synergist), Select (high purity), SP (the highest purity (99.9))Īmspec FR-21, FR-51, FR-7023BT (water dispersions of decabromodiphenyl oxide and antimony trioxide) Most programming languages forbid identifiers like that for their classes / functions / namespaces / modules.Trace elements: As − 0.02-0.2%, Pb − 0.004-0.3%, Fe − 0.004-0.01%, Se − 0.005%, SO 4 − 0.002-0.05%Ĭhemical resistance: reactive with acids and basesĬrystal structure: cubic or orthorhombic (also senarmontite) would work for that it does fine for MKV videos, which is also a huge pile of structured data with non-trivial performance constraints for producers and especially parsers.Īnother minor thing, it was not the best idea to make name start with a digit.
If I would be designing that format, I would probably made it binary.
XML is fine for kilobytes of data, but not many megabytes. I just don’t like the 3MF implementation too much. Scanners often output point clouds one can convert into triangles, but hard to convert into CAD formats. They both output triangle meshes instead of CAD files. Many people wouldn’t want a Core i7 with gigabytes of RAM in their 3D printers, inflates hardware cost and software complexity.īesides, we now have high-resolution 3D scanners, and CAE software which algorithmically optimizes models by running numerical simulations. Also, they need non-trivial processing power to handle. These IGES/STEP/BREP files require many megabytes of very complicated code to deal with, such as this library These formats may even contain proprietary extensions.
The format includes units, and these optional 4x4 transformation matrices - both are useful.Īs for need of the new formats, for one, modern CAD formats are insanely complex. I like the spec documents winding order of the meshes.
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