News Details
Unsaturated polyester resin intumescent flame retardant
2017-11-27 10:58:23
Unsaturated polyester resin intumescent flame retardant
Unsaturated resin intumescent flame retardant is an acid source, carbon source and gas source and compounds in the same molecular structure, in order to play a synergistic effect, get better performance of intumescent flame retardant varieties. Unsaturated polyester intumescent flame retardant has some industrial products, but most of them are still in the stage of laboratory research and development.
Unsaturated polyester resin intumescent flame retardant uses pentaerythritol and three oxychloride to synthesize 2,4,8,10- four oxo -3,9- two phosphorus spiro eleven alkane -3,9- two chloride as intermediate of intumescent flame retardant. The reaction products were obtained by polycondensation of spiro phosphate two chloride with two ethylene three amine.
Intumescent flame retardants have been widely used in plastics, rubber and synthetic polymers. However, there is no reactive group in TFR, and it is seldom used in fiber and textiles. Therefore, it is a hot topic to improve the application of IFR on fiber, especially to improve the durability.
Crosslinking agent diisocyanate was added to (I) IFR, and covalent crosslinking with bamboo pulp fiber was carried out under the action of potassium sulfide catalyst. The durability of flame retardant fabric is improved. When the flame retardant fabric burns, the flame retardant is firstly heated to dehydrate and carbonized, and the porous carbon layer formed by the flame retardant has the function of heat insulation and oxygen isolation, and prevents further combustion. Good flame retardant effect. LOI% from fabric 29%, increased to 38.6%, 10 times of washing remained at 36.8%; damaged carbon length is reduced from 19.6cm to 12.5; the continued burning and smoldering time was 0. Fiber damage, whiteness, feel slightly decreased.
(II) to IFR of polyester fabrics in flame retardant finishing, flame retardant dosage of 250~300g/L, pre baking (100 DEG C) and baking temperature of 180~190 DEG C, the LOI value from undigested polyester 23.5% to 28.5% carbon, 8.5cm long, continued burning and smoldering time was 0. The flame retardant polyester does not have the phenomenon of dropping when burning, because the formation of an expanded carbon layer prevents the formation of droplets, while reducing the production of combustible gas, while producing non flammable gas, play a role in diluting flammable gas.
In the mixed traditional intumescent flame retardant is mixed with ammonium polyphosphate, melamine and pentaerythritol was between three components prone to alcoholysis, easy to produce "frost" and other issues on the surface of polyester. A synthesis of a flame retardant coating adhesive on polyester fabric with flame retardant coating, and solve the "frost" on.
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 an oxy chloro phosphine chloride from three amyl alcohol and three phosphorus oxychloride and the reaction with melamine was introduced.
The molecular structure of product (III) IFR has both acid source and sufficient carbon source and gas source, but the phosphorus element as acid source is not enough, so the type II polyphosphate is added in the flame retardant, and the waterborne polyacrylate is used as the binder. Flame retardant coating finish of PET fabric by coating glue with certain proportion. In the 180~200g/m2 glue, without flame retardant by long carbon burnout increased to about 8cm, continued burning and smoldering time is zero. Better flame retardant effect.
Others such as 2,2- two methyl -1,3- propylene glycol - two (New glycol) phosphate, also known as three (glycol glycol) phosphate, can also be used as intumescent flame retardant components.
This kind of ring phosphate structure as early as the last century eighty years, for polyester fiber durable flame retardant flame retardant effect is good, LOI up to 35%, no droplet, wash effect is good.
The flame retardant is composed of phosphonate and bicyclic phosphite, and the flame retardant consists of (A) and (B) two structural forms.
The flame retardant was proved to have certain toxicity by animal test and acute oral toxicity of LD50=791mg/kg in rats. Rabbit eye irritation test 2% had no response, and skin irritation was negative.
Caged bicyclic elemental intumescent flame retardant 1- oxo -4- hydroxymethyl -2,6,7- three oxa -1- azabicyclo octane phosphorus (PEPA) as the representative, it is a kind of flame retardant, can also be mixed type intumescent flame retardant components in the compound derived from a series of elemental caged bicyclic intumescent flame retardant agent.
PEPA is a reaction system of pentaerythritol and three phosphorus oxychloride, PEPA system pentaerythritol phosphate, reactive phosphorus series intumescent flame retardant, has double cage like phosphate structure, molecular symmetry, good char, carbon source and acid source, good thermal stability. Other stable phosphate compounds with double cage structure can be synthesized by using PEPA as intermediate.
Some derivatives used as intumescent flame retardant performance, both in the same molecular structure of acid source, carbon source and the gas, play a synergistic effect, obtain better flame retardant properties, respectively one, two and three PEPA derivatives bicyclophosphorothionate structure.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Unsaturated resin intumescent flame retardant is an acid source, carbon source and gas source and compounds in the same molecular structure, in order to play a synergistic effect, get better performance of intumescent flame retardant varieties. Unsaturated polyester intumescent flame retardant has some industrial products, but most of them are still in the stage of laboratory research and development.
Unsaturated polyester resin intumescent flame retardant uses pentaerythritol and three oxychloride to synthesize 2,4,8,10- four oxo -3,9- two phosphorus spiro eleven alkane -3,9- two chloride as intermediate of intumescent flame retardant. The reaction products were obtained by polycondensation of spiro phosphate two chloride with two ethylene three amine.
Intumescent flame retardants have been widely used in plastics, rubber and synthetic polymers. However, there is no reactive group in TFR, and it is seldom used in fiber and textiles. Therefore, it is a hot topic to improve the application of IFR on fiber, especially to improve the durability.
Crosslinking agent diisocyanate was added to (I) IFR, and covalent crosslinking with bamboo pulp fiber was carried out under the action of potassium sulfide catalyst. The durability of flame retardant fabric is improved. When the flame retardant fabric burns, the flame retardant is firstly heated to dehydrate and carbonized, and the porous carbon layer formed by the flame retardant has the function of heat insulation and oxygen isolation, and prevents further combustion. Good flame retardant effect. LOI% from fabric 29%, increased to 38.6%, 10 times of washing remained at 36.8%; damaged carbon length is reduced from 19.6cm to 12.5; the continued burning and smoldering time was 0. Fiber damage, whiteness, feel slightly decreased.
(II) to IFR of polyester fabrics in flame retardant finishing, flame retardant dosage of 250~300g/L, pre baking (100 DEG C) and baking temperature of 180~190 DEG C, the LOI value from undigested polyester 23.5% to 28.5% carbon, 8.5cm long, continued burning and smoldering time was 0. The flame retardant polyester does not have the phenomenon of dropping when burning, because the formation of an expanded carbon layer prevents the formation of droplets, while reducing the production of combustible gas, while producing non flammable gas, play a role in diluting flammable gas.
In the mixed traditional intumescent flame retardant is mixed with ammonium polyphosphate, melamine and pentaerythritol was between three components prone to alcoholysis, easy to produce "frost" and other issues on the surface of polyester. A synthesis of a flame retardant coating adhesive on polyester fabric with flame retardant coating, and solve the "frost" on.
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 an oxy chloro phosphine chloride from three amyl alcohol and three phosphorus oxychloride and the reaction with melamine was introduced.
The molecular structure of product (III) IFR has both acid source and sufficient carbon source and gas source, but the phosphorus element as acid source is not enough, so the type II polyphosphate is added in the flame retardant, and the waterborne polyacrylate is used as the binder. Flame retardant coating finish of PET fabric by coating glue with certain proportion. In the 180~200g/m2 glue, without flame retardant by long carbon burnout increased to about 8cm, continued burning and smoldering time is zero. Better flame retardant effect.
Others such as 2,2- two methyl -1,3- propylene glycol - two (New glycol) phosphate, also known as three (glycol glycol) phosphate, can also be used as intumescent flame retardant components.
This kind of ring phosphate structure as early as the last century eighty years, for polyester fiber durable flame retardant flame retardant effect is good, LOI up to 35%, no droplet, wash effect is good.
The flame retardant is composed of phosphonate and bicyclic phosphite, and the flame retardant consists of (A) and (B) two structural forms.
The flame retardant was proved to have certain toxicity by animal test and acute oral toxicity of LD50=791mg/kg in rats. Rabbit eye irritation test 2% had no response, and skin irritation was negative.
Caged bicyclic elemental intumescent flame retardant 1- oxo -4- hydroxymethyl -2,6,7- three oxa -1- azabicyclo octane phosphorus (PEPA) as the representative, it is a kind of flame retardant, can also be mixed type intumescent flame retardant components in the compound derived from a series of elemental caged bicyclic intumescent flame retardant agent.
PEPA is a reaction system of pentaerythritol and three phosphorus oxychloride, PEPA system pentaerythritol phosphate, reactive phosphorus series intumescent flame retardant, has double cage like phosphate structure, molecular symmetry, good char, carbon source and acid source, good thermal stability. Other stable phosphate compounds with double cage structure can be synthesized by using PEPA as intermediate.
Some derivatives used as intumescent flame retardant performance, both in the same molecular structure of acid source, carbon source and the gas, play a synergistic effect, obtain better flame retardant properties, respectively one, two and three PEPA derivatives bicyclophosphorothionate structure.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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