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69 products
69 products
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Organophosphorus Flame Retardant for Viscose Fiber (Solid)
Halogen-free organophosphorus flame retardant engineered specifically for viscose fiber (rayon) manufacturing. Supplied as a white crystalline solid with a melting point of 228–229°C, it integrates directly into the viscose spinning dope without requiring process adjustment. The product delivers durable flame retardancy that survives repeated laundering and stringent dry-cleaning conditions, making it the preferred choice for FR viscose yarns, nonwovens, and technical textiles. The modified thiophosphate ester chemistry is APEO-free and halogen-free, meeting EU REACH and OEKO-TEX Standard 100 requirements. Low pyridine content (<30 ppm) ensures minimal odor and minimal impact on the whiteness and light stability of finished fabrics. Compatible with standard viscose wet-spinning and downstream dyeing processes.
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Pentaerythritol (PER) Flame Retardant Grade
Pentaerythritol (PER) flame retardant grade is a high-purity polyol specifically used as the carbonific (carbon-forming) component of intumescent flame retardant systems for coatings, polyolefins, and thermoplastic composites. It reacts with the acid source (typically ammonium polyphosphate) upon decomposition to produce a cross-linked, thermally insulating char. High-purity FR grade PER with minimized mono-PE content is preferred for consistent char formation and coating film integrity in demanding fireproofing applications.
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Pentaerythritol Intumescent Char-Forming Additive
Pentaerythritol used as the carbon source component in intumescent coating (IFR) systems, working synergistically with ammonium polyphosphate (acid source) and melamine (gas source) to form a dense, insulating char on steel and wood surfaces when exposed to heat. As the carbonific component, pentaerythritol provides the polyhydroxy substrate that reacts with phosphoric acid to create the stable intumescent char network. It is the standard carbon source in the classic APP/PER/MEL ternary intumescent system used in structural steel fireproofing coatings.
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Phosphoric Acid Flame Retardant Grade
Flame retardant grade phosphoric acid is a high-purity orthophosphoric acid used as an acid catalyst and carbon-source activator in intumescent coating systems, wood fire retardant treatments, and cotton textile finishing. It reacts with polyols and nitrogenous compounds at elevated temperatures to form a dense phosphate char that insulates the substrate from heat. Industrial 75–85% concentrations are commonly used for direct treatment of cellulosic materials or as a feedstock for manufacturing ammonium phosphate salts.
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Phosphorylated Pentaerythritol Reactive FR Polyol
Phosphorylated pentaerythritol is a reactive multifunctional phosphorus-containing polyol that combines the carbon source and acid source functionalities into a single molecule, simplifying intumescent system formulation and improving IFR efficiency. It is produced by reacting pentaerythritol with phosphoric acid or phosphorus oxychloride, yielding a product with both residual hydroxyl groups and covalently bound phosphorus. This dual-function molecule is used in reactive polyurethane foam systems, intumescent coatings, and halogen-free polyolefin FR applications.
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Poly(piperazine phosphonate) Flame Retardant
Poly(piperazine phosphonate) is a polymeric nitrogen-phosphorus flame retardant that combines the char-promoting condensed-phase action of phosphorus with the gas-diluting effect of nitrogen in a single macromolecular structure. Its polymeric nature results in low volatility, non-migration, and excellent thermal stability, making it suitable for high-temperature polymer processing. It provides effective flame retardancy in polyamides, polyesters, and halogen-free cable compounds.
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Resorcinol Bis(diphenyl phosphate) (RDP)
Resorcinol bis(diphenyl phosphate) (RDP) is a non-halogen, oligomeric aryl phosphate ester flame retardant widely used in PC/ABS and PC/PBT engineering plastic blends. Its higher molecular weight and oligomeric structure compared to monomeric phosphate esters result in significantly reduced volatility, migration, and hydrolytic sensitivity. RDP effectively achieves UL94 V-0 at 10–15% loading in PC/ABS while maintaining the good impact performance and dimensional stability demanded by electronics applications.
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Silicone Flame Retardant Additive
Silicone flame retardant additive is a polysiloxane-based compound that functions in the condensed phase by promoting formation of a cohesive, ceramic-like silica char layer during combustion. Unlike halogen or phosphorus-based FRs, silicone additives reduce heat release rate and smoke production while maintaining excellent electrical insulation and mechanical properties. They are particularly valued in high-performance engineering plastics and wire and cable applications.
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Synergistic Intumescent Polyol Charring Agent Blend
Synergistic intumescent polyol charring agent blend is a pre-optimized mixture of pentaerythritol, dipentaerythritol, and/or sorbitol co-carbonific agents formulated to deliver superior char yield, cohesion, and thermal stability versus single-component carbon sources. The blend ratio is engineered to provide a broad decomposition temperature window that matches the acid source release profile, ensuring synchronized IFR activation. These blends reduce formulation complexity for coating and polymer compound manufacturers and are offered in grades optimized for waterborne, solvent-borne, and polymer compounding applications.
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Tetrabromobisphenol A (TBBPA)
Tetrabromobisphenol A (TBBPA) is the world's highest-volume brominated flame retardant, used primarily as a reactive comonomer in epoxy resins for printed circuit board (PCB) FR-4 laminates and as an additive FR in ABS and HIPS. In epoxy systems, TBBPA is covalently incorporated into the polymer backbone via its phenolic OH groups, providing durable flame retardancy that does not leach or migrate. With 58.8% bromine content, it efficiently achieves UL94 V-0 in PCB and E&E applications when used with antimony trioxide synergist.
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Tetrabromophthalic Anhydride (TBPA)
Tetrabromophthalic anhydride (TBPA) is a reactive halogenated flame retardant that can be chemically incorporated into polyester, polyurethane, and epoxy resin systems. With approximately 68% bromine content, TBPA reacts through its anhydride group to become part of the polymer backbone, delivering permanent, non-migratory flame retardancy. It is widely used in the production of flame-retardant polyols and alkyd resins.
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Tetrakis(hydroxymethyl)phosphonium Sulfate (THPS)
Tetrakis(hydroxymethyl)phosphonium sulfate (THPS) is a reactive organophosphorus flame retardant and biocide widely used for durable flame retardant finishing of cotton and cotton-blend textiles. It forms a cross-linked three-dimensional phosphorus network within cellulose fiber upon curing, providing wash-durable flame retardancy that withstands 50+ industrial launderings. THPS-treated fabrics meet EN ISO 15025, EN 11611, and NFPA 701 standards required for protective workwear.
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Tricalcium Phosphate (Flame Retardant Grade)
Tricalcium phosphate flame retardant grade is an inorganic mineral filler that functions as a halogen-free, phosphorus-based flame retardant and smoke suppressant in polymer applications. It acts in the condensed phase by catalyzing char formation and releasing phosphate species that cross-link the char layer, improving its integrity and heat shielding efficiency. When combined with intumescent systems or metal hydroxides, it provides synergistic smoke suppression and enhanced flame retardancy.
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Tricresyl Phosphate (TCP) Flame Retardant Grade
Tricresyl phosphate (TCP) flame retardant grade is an aryl phosphate ester plasticizer and flame retardant for PVC, rubber, and vinyl compounds where simultaneous plasticization and fire retardancy are required. Its aromatic structure imparts superior thermal stability and low volatility compared to aliphatic phosphate plasticizers, making it suitable for high-temperature processing applications. TCP acts in both gas-phase and condensed-phase modes, reducing heat release and forming a stable char layer on combustion.
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Triethyl Phosphate (TEP) Flame Retardant Plasticizer
Triethyl phosphate (TEP) is a low-viscosity organophosphorus ester that functions as both a flame retardant and a plasticizer for cellulose acetate, polyurethane foams, and unsaturated polyesters. Its high phosphorus content (18.9%) provides efficient flame retardancy at relatively low loading levels. TEP is also widely used as a reactive diluent in fire-suppression fluid formulations and as a catalyst in polyurethane synthesis. Its water miscibility makes it suitable for waterborne intumescent coating systems.
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Tris(1,3-dichloro-2-propyl) Phosphate (TDCPP / TDCIPP)
Tris(1,3-dichloro-2-propyl) phosphate (TDCPP, also known as TDCIPP) is a highly effective halogen-phosphorus flame retardant and plasticizer for flexible polyurethane foam, achieving excellent FR ratings at moderate loadings through the synergistic action of chlorine and phosphorus. It exhibits lower volatility and migration compared to TCEP, making it more suitable for open-cell foam furniture and mattress applications. Note: TDCPP has been added to California's Proposition 65 list and is under evaluation in multiple jurisdictions; buyers should verify applicable regulations.
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Tris(1-chloro-2-propyl) Phosphate (TCPP)
Tris(1-chloro-2-propyl) phosphate (TCPP) is the world's highest-volume chlorinated organophosphate flame retardant, primarily used in flexible and rigid polyurethane foam. It achieves effective flame retardancy through dual halogen-phosphorus action and is accepted in many markets as a preferable alternative to TCEP and TDCPP due to its better regulatory profile. TCPP is a liquid that is fully miscible with polyols and easily incorporated at the standard 5–10 phr addition level in foam systems to pass FMVSS 302, Cal TB 117, and BS 5852 fire test requirements.
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Tris(2-chloroethyl) Phosphate (TCEP)
Tris(2-chloroethyl) phosphate (TCEP) is a halogen-phosphorus synergistic flame retardant and plasticizer for flexible polyurethane foam, PVC, and resin systems. It provides high flame retardant efficiency through dual chlorine and phosphorus mechanisms at relatively low loading levels. TCEP is a clear liquid with good compatibility across a wide range of flexible foam and vinyl systems. Note: TCEP is classified as an SVHC under EU REACH due to reproductive toxicity concerns; users in regulated markets should evaluate alternative chlorinated or halogen-free FR options.
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Zinc Borate (Firebrake ZB) Flame Retardant
Zinc borate (2ZnO·3B2O3·3.5H2O, Firebrake ZB) is a multifunctional inorganic flame retardant, smoke suppressant, and afterglow suppressant used in halogenated and halogen-free polymer systems. It functions through endothermic dehydration, boron oxide glass-forming char promotion, and zinc ion Lewis acid catalysis. Zinc borate is widely used as a partial replacement for antimony trioxide in halogen systems, and as a synergist with ATH or MDH in halogen-free cable compounds, providing additional smoke suppression benefits.
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Zinc Diethylphosphinate (ZnDEP)
Zinc diethylphosphinate (ZnDEP) is a halogen-free organophosphorus flame retardant synergist used in combination with aluminum diethylphosphinate (AlDEP) or melamine polyphosphate (MPP) to enhance flame retardant performance in polyamide and polyester systems. The zinc cation acts as a Lewis acid catalyst that promotes char formation and viscosity increase in the condensed phase, preventing dripping and improving LOI. ZnDEP is also used as a sole FR agent in specific polyester and PP applications requiring moderate flame retardancy.
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Zinc Stannate (ZnSnO3) Smoke Suppressant
Zinc stannate (ZnSnO3) is an inorganic smoke suppressant and char promoter used primarily in flexible and rigid PVC, rubber, and halogen-containing polymer systems. It suppresses smoke generation by catalyzing dehydrochlorination and cross-linking reactions that reduce volatile hydrocarbon emissions. Zinc stannate can partially replace antimony trioxide as a halogen synergist while simultaneously providing significant smoke reduction, making it valuable in applications requiring low smoke toxicity ratings such as mass transit vehicles and building wiring.
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