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Reactive phosphor dilatant flame retardant
2017-10-25 12:00:38
Reactive phosphor dilatant flame retardant
Reactive phosphate expansion type flame retardant (1) 1-4 - melamine carboxyl oxygen generation - - 2, 6 - three oxygen mixed - 1 - phosphorus mixed double loop,2,2 [2] octane PEAP as raw material, after hydroxymethyl oxidized to acid, acyl into chloride, reacts with melamine and, reaction is as follows:
PEPA in nitric acid as oxidant, in the presence of ammonium vanadate 60 ℃, reaction 7 hours, get the corresponding carboxylic acid intermediates. In chlorobenzene solvent by acylating agent dichloro dimethyl sulfoxide and catalyst formamide, the formation of active high dimethyl chlorinated first formamide, then overcome due to the steric hindrance effect of double cage rings which changes the carboxylic acid to chloride. Reaction at 80 ℃, 2 hours to complete. Finally with the industrial chemical melamine in 100 ℃ when backflow 1.5 hours to get the final product. Theoretical phosphorus content is 11.31%, (below PEPA's 17.12%), theoretical carbon content 30.66%, theoretical nitrogen content 30.66%.
Reactive phosphate-dilatated flame retardants (2) 2 (2, 6, 7, 7, 3 oxygen-1 - oxygen-1, octane, octane -4- methylene)
Of the compounds containing two bicyclic cage phosphate ester derivatives, it is formed by reaction with phosphorus oxychloride mole ratio of 2:1 PEPA, get lively phosphoryl chloride compound, reacts with melamine, get the unit contains two PEPA molecule expansion type flame retardant. The theoretical content is 18.83% and the theoretical carbon content is 24.29%, and the theoretical nitrogen content is 17.00%. The steps are as follows:
PEPA under the action of phosphorus oxychloride and acetonitrile hydrogen chloride off get double PEPA phosphorus oxychloride product, because the steric hindrance effect of double cage three-dimensional structure is large, the reaction time is longer, about 20 hours to complete reaction at 80 ℃. Reaction with melamine because the lively phosphorus oxychloride, return 1.5 hours to complete reaction at 100 ℃.
Reactive phosphorous dilatant flame retardants (3) 3 (1 - oxygen generation -2,6, 7, 3 oxygen-1 - phosphorus heterocyclic [2, 2, 2] octane - 4) phosphatates
When PEPA and triclosan were 3-1 mole ratio, they were able to obtain compounds containing 3 PEPA double cage structures
In the presence of acetonitrile, PEPA and triclosan were returned to 12 hours, with a theoretical phosphorus content of 21.83% and the theoretical carbon content of 31.69 percent. Because there's no nitrogen, there's no gas. Therefore, it must be mixed with melamine (MEL) and polyphosphate (APP) to have the flame retardant properties of the expansion flame retardant.
Tris(2-chloroisopropyl)Phosphate(TCPP)
Cas No:13674 -84-5
HS Code HS: 29199000
The most important indicator of product:
colorless transparent liquid, moisture ≤ 0.1, Acid value ≤ 0.1, Chroma ≤ 50, the phosphorus content: 9.4 ± 0.5
Raw materials: phosphorus oxychloride and epichlorohydrin.
Belong to several categories of dangerous goods:
Currently Tris(2-chloroisopropyl)Phosphate TCPP general cargo exports are not dangerous.
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.
Reactive phosphate expansion type flame retardant (4) in addition to the above PEPA double cage containing phosphorus carbon compounds, someone with pentaerythritol ester exchange reaction with phosphite benzene ester to 4 - hydroxy methyl 2, and 6, 7 - three oxygen mixed - 1 - phosphorus mixed double loop,2,2 octane.
The molecular weight of the compound was 164 and the theoretical phosphorus content was 18.9%, and the theoretical carbon content was 36.6%. Because of the hydroxyl in the molecular structure, the covalent bond can be formed by crosslinking agent and cellulose fiber, thus obtaining better washable property.
But the compound contains no nitrogen, for called expansion type flame retardant, the lack of gas source, it is difficult to form carbon foam layer, therefore with toluene 2, 4 - diisocyanate (TDI) as crosslinking agent, and cotton fiber covalent cross-linking and gas source, flame retardant finishing with acetone as solvent, two lauric acid tin as catalyst at room temperature.
After the flame retardant finishing of cotton fabric, the LOI value reached 32.1. After 12 times of water washing, it remained in 27.9, the carbon length was 12cm, the smoldering and afterburning time were zero, the flame retardant effect was good and the washing resistance was good. However, after the flame retardant finishing, the strength decreased from 325N to 214N, down 34.2%. The bending stiffness was increased to 2.0 x 10-1cn.cm by 6.2 x 10-2cn.cm. The air permeability decreased from 82.3mm/s to 66.7 mm/s, and the performance loss was greater. Moreover, the cross-linking agent TDI was suspected to be carcinogenic 2, 4-diamino-toluene, and the organic tin was suspected to be harmful. Acetone is a flammable solvent, which should not be used in printing and dyeing enterprises.
The expansion type flame retardant is a kind of flame retardant that develops rapidly in the modern era, with phosphorus and nitrogen as the main components, including acid source (dehydrating agent), carbon source (carbon) and gas source (foaming agent). Through this kind of flame retardant added in the plastic or by flame retardant finishing exists in textile, burning can generate a layer of foamy carbon in surface layer, can heat insulation, lie between oxygen and smoke suppression, and can prevent synthetic material drop and termination of the function of the chain reaction has good flame retardant properties of ceramic materials.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Reactive phosphate expansion type flame retardant (1) 1-4 - melamine carboxyl oxygen generation - - 2, 6 - three oxygen mixed - 1 - phosphorus mixed double loop,2,2 [2] octane PEAP as raw material, after hydroxymethyl oxidized to acid, acyl into chloride, reacts with melamine and, reaction is as follows:
PEPA in nitric acid as oxidant, in the presence of ammonium vanadate 60 ℃, reaction 7 hours, get the corresponding carboxylic acid intermediates. In chlorobenzene solvent by acylating agent dichloro dimethyl sulfoxide and catalyst formamide, the formation of active high dimethyl chlorinated first formamide, then overcome due to the steric hindrance effect of double cage rings which changes the carboxylic acid to chloride. Reaction at 80 ℃, 2 hours to complete. Finally with the industrial chemical melamine in 100 ℃ when backflow 1.5 hours to get the final product. Theoretical phosphorus content is 11.31%, (below PEPA's 17.12%), theoretical carbon content 30.66%, theoretical nitrogen content 30.66%.
Reactive phosphate-dilatated flame retardants (2) 2 (2, 6, 7, 7, 3 oxygen-1 - oxygen-1, octane, octane -4- methylene)
Of the compounds containing two bicyclic cage phosphate ester derivatives, it is formed by reaction with phosphorus oxychloride mole ratio of 2:1 PEPA, get lively phosphoryl chloride compound, reacts with melamine, get the unit contains two PEPA molecule expansion type flame retardant. The theoretical content is 18.83% and the theoretical carbon content is 24.29%, and the theoretical nitrogen content is 17.00%. The steps are as follows:
PEPA under the action of phosphorus oxychloride and acetonitrile hydrogen chloride off get double PEPA phosphorus oxychloride product, because the steric hindrance effect of double cage three-dimensional structure is large, the reaction time is longer, about 20 hours to complete reaction at 80 ℃. Reaction with melamine because the lively phosphorus oxychloride, return 1.5 hours to complete reaction at 100 ℃.
Reactive phosphorous dilatant flame retardants (3) 3 (1 - oxygen generation -2,6, 7, 3 oxygen-1 - phosphorus heterocyclic [2, 2, 2] octane - 4) phosphatates
When PEPA and triclosan were 3-1 mole ratio, they were able to obtain compounds containing 3 PEPA double cage structures
In the presence of acetonitrile, PEPA and triclosan were returned to 12 hours, with a theoretical phosphorus content of 21.83% and the theoretical carbon content of 31.69 percent. Because there's no nitrogen, there's no gas. Therefore, it must be mixed with melamine (MEL) and polyphosphate (APP) to have the flame retardant properties of the expansion flame retardant.
Tris(2-chloroisopropyl)Phosphate(TCPP)
Cas No:13674 -84-5
HS Code HS: 29199000
The most important indicator of product:
colorless transparent liquid, moisture ≤ 0.1, Acid value ≤ 0.1, Chroma ≤ 50, the phosphorus content: 9.4 ± 0.5
Raw materials: phosphorus oxychloride and epichlorohydrin.
Belong to several categories of dangerous goods:
Currently Tris(2-chloroisopropyl)Phosphate TCPP general cargo exports are not dangerous.
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.
Reactive phosphate expansion type flame retardant (4) in addition to the above PEPA double cage containing phosphorus carbon compounds, someone with pentaerythritol ester exchange reaction with phosphite benzene ester to 4 - hydroxy methyl 2, and 6, 7 - three oxygen mixed - 1 - phosphorus mixed double loop,2,2 octane.
The molecular weight of the compound was 164 and the theoretical phosphorus content was 18.9%, and the theoretical carbon content was 36.6%. Because of the hydroxyl in the molecular structure, the covalent bond can be formed by crosslinking agent and cellulose fiber, thus obtaining better washable property.
But the compound contains no nitrogen, for called expansion type flame retardant, the lack of gas source, it is difficult to form carbon foam layer, therefore with toluene 2, 4 - diisocyanate (TDI) as crosslinking agent, and cotton fiber covalent cross-linking and gas source, flame retardant finishing with acetone as solvent, two lauric acid tin as catalyst at room temperature.
After the flame retardant finishing of cotton fabric, the LOI value reached 32.1. After 12 times of water washing, it remained in 27.9, the carbon length was 12cm, the smoldering and afterburning time were zero, the flame retardant effect was good and the washing resistance was good. However, after the flame retardant finishing, the strength decreased from 325N to 214N, down 34.2%. The bending stiffness was increased to 2.0 x 10-1cn.cm by 6.2 x 10-2cn.cm. The air permeability decreased from 82.3mm/s to 66.7 mm/s, and the performance loss was greater. Moreover, the cross-linking agent TDI was suspected to be carcinogenic 2, 4-diamino-toluene, and the organic tin was suspected to be harmful. Acetone is a flammable solvent, which should not be used in printing and dyeing enterprises.
The expansion type flame retardant is a kind of flame retardant that develops rapidly in the modern era, with phosphorus and nitrogen as the main components, including acid source (dehydrating agent), carbon source (carbon) and gas source (foaming agent). Through this kind of flame retardant added in the plastic or by flame retardant finishing exists in textile, burning can generate a layer of foamy carbon in surface layer, can heat insulation, lie between oxygen and smoke suppression, and can prevent synthetic material drop and termination of the function of the chain reaction has good flame retardant properties of ceramic materials.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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