News Details
Simple expansion flame retardant
2017-10-25 12:00:40
Simple expansion flame retardant
The single - quality expansive flame retardant is a compound of the source, carbon source and gas source and the same molecular structure in order to play synergistic synergistic effect and obtain a better performance of the expansion type flame retardant. There are some industrial products in the single expansion flame retardant, but most of them are still in the research and development stage of the laboratory.
The helical single expansion flame retardant was synthesized from pentaerythritol and trichlorohydrin synthesis of 2,4,8, 10, 4 oxygen-3, 9- diphospho-3, 9-2, and 9-2, 2, 9-2. The result of condensation polymerization of spiral ring phosphate and diethylchloride is obtained.
Expansive flame retardant is widely used in plastics, rubber and synthetic polymers. However, there are few reactive groups in TFR, and there are few applications on fiber and textiles. Therefore, the application of IFR on fiber, especially the improvement of durability, is a hot topic of current research.
Crosslinking agent is added to (Ⅰ) IFR diisocyanate, and under the effect of catalyst potassium thiocyanate and bamboo pulp fiber covalent cross-linking.
Improved water wash durability of flame retardant fabrics. When flame retardant fabric is burnt, the flame retardant is first heated and dehydrated, and the porous carbon layer formed by the formation of the carbon layer ACTS as an insulating and oxygen barrier, preventing further combustion. The flame retardant effect is good. LOI% was increased from 29.0% of unfinished fabric to 38.6%, while water was still at 36.8%. The damaged carbon was reduced from 19.6cm to 12.5. Both continued combustion and smoldering time are 0. Fiber damage, whiteness, slightly lower feel.
To (Ⅱ) IFR flame retardant finishing of polyester fabric, the dosage of flame retardants for 250 ~ 300 g/L, the preliminary drying (100 ℃) and baking temperature of 180 ~ 190 ℃, the LOI value increased from 23.5% to 28.5% by the undigested polyester, charcoal 8.5 cm long, burning and smoldering time are all zero. Flame retardant polyester no drip phenomenon when burnt, on forming a carbon layer to prevent inflation of the drop, at the same time reduced the incidence of combustible gas, non combustible gas is at the same time, have the effect of dilute combustible gas.
In the traditional mixed type expansion flame retardant, it is a mixture of ammonium polyphosphate, pentaerythritol and melamine, which can be easily produced in three groups, which can produce "white frost" on the surface of polyester. A flame retardant coating for polyester fabric was synthesized and the "white frost" was solved.
Tris(2-chloroisopropyl)Phosphate(TCPP)
Packing: NW 250KG / galvanized iron (a small cabinet to play prop 20 tons), 1000KG/IB barrels (a small cabinet loaded 18 tons), or 23 tons ISOTANK.
The product output: 100 tons / month
Shipping Port: China Shang Hai
Price offer is valid: 15 days
Jincang time: 15 days (commodity inspection)
Export rights: the right to import and export company.
The product is used for the soft / hard polyurethane foam, with thermal and hydrolytic stability good, especially suitable for ASTME84 (Level 11) foam, with low viscosity unsaturated polyester resin in low temperature application and phenolic plastics at. This product is also used to grab the foam sealant and sheet production. For polyvinyl chloride, polystyrene, phenolic resin, acrylic resin and rubber, coating, flame retardant, also used for soft and hard polyurethane foam, epoxy resin, polystyrene, cellulose acetate, ethyl cellulose tree and phenolic plastics, polyvinyl acetate and gun type foam sealant production. Particularly recommended for rigid polyurethane foam has excellent thermal and hydrolytic stability is particularly suitable for ASTM84 (II), compound for polyurethane foam and unsaturated resin and phenolic plastics.
The synthesis of a kind of oxygen - phosphorus heterocyclic chloride compound with triclosan and trichlorohydrin was the result of the reaction of melamine.
Product (Ⅲ) molecular structural formula of IFR both acid source, and have sufficient carbon source and air, but it is not enough as a source of phosphorus acid, so Ⅱ type is added in the flame retardant poly phosphate, and for waterborne polyacrylate adhesives. The polyester coating is prepared by a certain ratio. When the amount of glue is increased from 180~ 200g/m2, the carbon length is increased to about 8cm from the flame retardant, and the duration of the continuous combustion and the smoldering time is zero. The flame retardant effect is better.
Other such as 2, 2-dimethyl-1, 3-propylene glycol diphosphate, also known as three (new pentadiol) diphosphate, can also be used as an expansive flame retardant. The molecular structure is as follows:
This type of cyclophosphate structure was developed in the last 80 years, and the flame retardant frc-1 is a durable flame retardant for dacron fibers. The flame retardant effect is good, the LOI can reach up to 35%, no molten drop, the washing effect is good.
The flame retardant is synthesized from phosphonate and dicyclophosphate, and the flame retardants are composed of (A) and (B).
The flame retardant was proved to be toxic by animal test, and the acute oral toxicity LD50= 791mg/kg. Rabbit eye stimulation test 2% no response, skin irritation negative.
Bicyclic cage elemental expansion type flame retardant with 1 - oxygen generation - 4 - hydroxy methyl - 2, 6 - three oxygen mixed - 1 - phosphorus mixed double loop octane (PEPA) as the representative, itself is a kind of flame retardant, can also be for hybrid expansion flame retardant components, with the compounds derived a series of elemental bicyclic cage intumescent flame retardants.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
The single - quality expansive flame retardant is a compound of the source, carbon source and gas source and the same molecular structure in order to play synergistic synergistic effect and obtain a better performance of the expansion type flame retardant. There are some industrial products in the single expansion flame retardant, but most of them are still in the research and development stage of the laboratory.
The helical single expansion flame retardant was synthesized from pentaerythritol and trichlorohydrin synthesis of 2,4,8, 10, 4 oxygen-3, 9- diphospho-3, 9-2, and 9-2, 2, 9-2. The result of condensation polymerization of spiral ring phosphate and diethylchloride is obtained.
Expansive flame retardant is widely used in plastics, rubber and synthetic polymers. However, there are few reactive groups in TFR, and there are few applications on fiber and textiles. Therefore, the application of IFR on fiber, especially the improvement of durability, is a hot topic of current research.
Crosslinking agent is added to (Ⅰ) IFR diisocyanate, and under the effect of catalyst potassium thiocyanate and bamboo pulp fiber covalent cross-linking.
Improved water wash durability of flame retardant fabrics. When flame retardant fabric is burnt, the flame retardant is first heated and dehydrated, and the porous carbon layer formed by the formation of the carbon layer ACTS as an insulating and oxygen barrier, preventing further combustion. The flame retardant effect is good. LOI% was increased from 29.0% of unfinished fabric to 38.6%, while water was still at 36.8%. The damaged carbon was reduced from 19.6cm to 12.5. Both continued combustion and smoldering time are 0. Fiber damage, whiteness, slightly lower feel.
To (Ⅱ) IFR flame retardant finishing of polyester fabric, the dosage of flame retardants for 250 ~ 300 g/L, the preliminary drying (100 ℃) and baking temperature of 180 ~ 190 ℃, the LOI value increased from 23.5% to 28.5% by the undigested polyester, charcoal 8.5 cm long, burning and smoldering time are all zero. Flame retardant polyester no drip phenomenon when burnt, on forming a carbon layer to prevent inflation of the drop, at the same time reduced the incidence of combustible gas, non combustible gas is at the same time, have the effect of dilute combustible gas.
In the traditional mixed type expansion flame retardant, it is a mixture of ammonium polyphosphate, pentaerythritol and melamine, which can be easily produced in three groups, which can produce "white frost" on the surface of polyester. A flame retardant coating for polyester fabric was synthesized and the "white frost" was solved.
Tris(2-chloroisopropyl)Phosphate(TCPP)
Packing: NW 250KG / galvanized iron (a small cabinet to play prop 20 tons), 1000KG/IB barrels (a small cabinet loaded 18 tons), or 23 tons ISOTANK.
The product output: 100 tons / month
Shipping Port: China Shang Hai
Price offer is valid: 15 days
Jincang time: 15 days (commodity inspection)
Export rights: the right to import and export company.
The product is used for the soft / hard polyurethane foam, with thermal and hydrolytic stability good, especially suitable for ASTME84 (Level 11) foam, with low viscosity unsaturated polyester resin in low temperature application and phenolic plastics at. This product is also used to grab the foam sealant and sheet production. For polyvinyl chloride, polystyrene, phenolic resin, acrylic resin and rubber, coating, flame retardant, also used for soft and hard polyurethane foam, epoxy resin, polystyrene, cellulose acetate, ethyl cellulose tree and phenolic plastics, polyvinyl acetate and gun type foam sealant production. Particularly recommended for rigid polyurethane foam has excellent thermal and hydrolytic stability is particularly suitable for ASTM84 (II), compound for polyurethane foam and unsaturated resin and phenolic plastics.
The synthesis of a kind of oxygen - phosphorus heterocyclic chloride compound with triclosan and trichlorohydrin was the result of the reaction of melamine.
Product (Ⅲ) molecular structural formula of IFR both acid source, and have sufficient carbon source and air, but it is not enough as a source of phosphorus acid, so Ⅱ type is added in the flame retardant poly phosphate, and for waterborne polyacrylate adhesives. The polyester coating is prepared by a certain ratio. When the amount of glue is increased from 180~ 200g/m2, the carbon length is increased to about 8cm from the flame retardant, and the duration of the continuous combustion and the smoldering time is zero. The flame retardant effect is better.
Other such as 2, 2-dimethyl-1, 3-propylene glycol diphosphate, also known as three (new pentadiol) diphosphate, can also be used as an expansive flame retardant. The molecular structure is as follows:
This type of cyclophosphate structure was developed in the last 80 years, and the flame retardant frc-1 is a durable flame retardant for dacron fibers. The flame retardant effect is good, the LOI can reach up to 35%, no molten drop, the washing effect is good.
The flame retardant is synthesized from phosphonate and dicyclophosphate, and the flame retardants are composed of (A) and (B).
The flame retardant was proved to be toxic by animal test, and the acute oral toxicity LD50= 791mg/kg. Rabbit eye stimulation test 2% no response, skin irritation negative.
Bicyclic cage elemental expansion type flame retardant with 1 - oxygen generation - 4 - hydroxy methyl - 2, 6 - three oxygen mixed - 1 - phosphorus mixed double loop octane (PEPA) as the representative, itself is a kind of flame retardant, can also be for hybrid expansion flame retardant components, with the compounds derived a series of elemental bicyclic cage intumescent flame retardants.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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