News Details
Polyurethane rigid foam flame retardant
2017-12-1 10:50:18
Polyurethane rigid foam flame retardant
Containing two ammonium hydrogen phosphate and ammonium polyphosphate FPUF at 200 DEG C, here are a few beginning decomposition, the activation energy decreases slightly, that after adding phosphorus nitrogen containing flame retardant polyurethane foam agent and its decomposition temperature is greatly advanced, and the maximum decomposition temperature is larger in advance, that flame retardant polyurethane rigid foam agent the first part of the decomposition of ammonia and water at low temperature, a dilution and cooling effect of the generated partial ammonium phosphate and phosphoric acid as catalyst in high temperature dehydration in soft polyurethane foam into carbon, decreased mass loss rate and combustible materials, and most of the phosphorus in the residual carbon layer, which proved the last remaining rate higher.
The apparent activation energy in the phase of maximum decomposition rate is calculated according to the analysis results of various patterns. The 2.4 method is used to calculate the apparent activation energy at the maximum decomposition rate.
The flame retardants have a great influence on the activation energy of the kinetic parameters, and the decomposition characteristics of the material are changed and the decomposition temperature of the flame retardant polyurethane is decomposed in advance.
The initial decomposition temperature of polyurethane was postponed by the flame retardant polyurethane foam with melamine, and the decomposition activation energy was increased. But because of its self sublimation, the flame retardancy time is shorter and the final residual amount is smaller.
After the addition of flame retardants, the decomposition process of polyurethane foam becomes more complex. From the DTG curve, it is obvious that the initial decomposition temperature is ahead of schedule, and the maximum decomposition rate is basically decreasing.
The maximum decomposition rate of the polyurethane soft foam containing six sodium phosphate was the smallest, only 3.28%/min, and the maximum remaining amount (66.78%), indicating that the flame retardant effect was the best.
The flame retardancy of ammonium borate is better than that of borax.
All kinds of polyurethane rigid foam flame retardants have a significant effect on the thermal decomposition activation energy of soft polyurethane, and the same flame retardants have different effects on the activation energy of flexible polyurethane foam.
Tris(2-chloroethyl)phosphate(TCEP)
Product Name: Trichloroethyl Phosphate Flame Retardant Plasticizer; Tris (β-Chloroethyl) Phosphate; Bis (2-Chloroethyl) Phosphate With 2-Chloroethyl Phosphate; Tris (β-Chloroethyl) Phosphoric Acid Ester; Tris (2-Chloroethyl) Phosphate; TCEP; Trichloroethyl Phosphate
CAS RN: 115-96-8
EINECS Number: 204-118-5
Molecular Formula: C6H12Cl3O4P
Molecular Weight: 285.4898
Tris(2-chloroethyl)phosphate(TCEP)Use:
1. Tris (2-Chloroethyl) Phosphate Has Excellent Flame Retardancy, Excellent Resistance To Low Temperature And UV Resistance, The Steam Can Only Be Used At 225 ℃ Above The Direct Ignition Can Be Fired, But The Fire The Source Is Immediately Self-Extinguishing. This Product Is A Flame Retardant Not Only Can Improve The Material Level Of Flame Retardant Materials, But Also Improve The Flame Resistance Of Water Resistance, Acid Resistance, Cold Resistance And Antistatic Properties. Commonly Used In Flame Retardant Nitrocellulose And Acetate Fiber As The Substrate Of Paint Coatings, Unsaturated Polyester, Polyurethane, Acrylic, Phenolic Resin, Can Also Be Used For Soft PVC Plastic Flame Retardant. This Product Is Used For The Amount Of Unsaturated Polyester 10% To 20%, In The Polyurethane Rigid Foam (Flame Retardant Polyether As Raw Material) Can Be About 10% In The Soft PVC Used As Auxiliary Plastic Flame Retardant When The 5% To 10%. Flame Retardants, Uranium, Thorium, Plutonium, Technetium And Other Rare Metal Separation Solvent Or Extractant.
2. This Product Is Widely Used In Chemical Fiber Fabrics, Cellulose Acetate As A Flame Retardant, In Addition To Self-Extinguishing, But Also Improve Water Resistance, Cold Resistance And Antistatic Properties. The General Amount Of 5 To 10 Copies. This Product Is An Excellent Flame Retardant For Synthetic Materials, And Has A Good Role In The Promotion, Widely Used In Cellulose Acetate, Nitrocellulose Varnish, Ethyl Cellulose, Polyvinyl Chloride, Polyvinyl Acetate, Polyurethane, Phenolic Resin , In Addition To Self-Extinguishing Products, But Also Improve The Physical Properties Of Products, Products Feel Soft, Also Known As Oil Additives And Rare Elements Of The Extractant, And Flame Retardant Rubber Conveyor Belt Is The Main Flame Retardant Materials , The General Amount Of Added 5% To 10%.
3. Used As Additive Type Halogenated Phosphate Flame Retardant And Plasticizer. Molecules In Both Phosphorus And Chlorine, Flame Retardant Effect Is Remarkable, Not Volatile And Hydrolysis, Good Stability To Ultraviolet Light. Applicable To Phenolic Resin, Polyvinyl Chloride, Polyvinyl Acetate, Polyurethane And So On. Also Used As Nitrocellulose Coating Flame Retardant, PVC Flame Retardant Plasticizer, Metal Extractant, Gasoline Additives And Polyimide Processing Aids And So On. Can Improve Water Resistance, Weatherability, Cold Resistance, Antistatic Property. Reference Dosage 5% To 20%.
When the loading rate is less, the mixing effect of magnesium hydroxide flame retardant is poor. When the loading rate is more than 95%, it is easy to cause agglomeration of Mg (OH) 2, and it is difficult to disperse evenly. The unevenness of mixing not only reduces the flame retardancy, but also reduces the tensile strength and elongation at break, and the appearance of the products is poor. In conclusion, the Mg (OH) 2, which is controlled by special surface treatment and particle size and particle size distribution, can be well dispersed by PP with good toughness and modification, and Mg (OH) 2 can be dispersed uniformly in PP by proper mixing machine and two times feeding method. The flame-retardant PP has many mechanical properties and flame retardancy properties, such as smoke suppression, low toxicity, halogen-free, no Sb2O3, environmental friendliness and low formula cost. It has high economic and social benefits.
821 flame retardant chemical name 2- hydroxy -1 3., two (2, 4, three 6- - oxy propane) [2-Hydroxy.1, 3Di (2, 4, propane], 6-tribromophenoxy) is a kind of efficient non-toxic brominated flame retardants. White solid powder. The melting point is 193~195 C, the bromine content is 66.8%, the thermal decomposition temperature is 253. It dissolves in two chloroethane, chloroform, carbon tetrachloride, glacial acetic acid, xylene, insoluble in water, ether, ethanol, acetone, petroleum ether, ethyl acetate, etc. LD50>5000mg / kg. 821 as a addition type flame retardant, suitable for epoxy resin, unsaturated polyester resin and so on.
XPS extrusion equipment is made of masterbatch of XQ-508 heat stable flame retardant with carrier, dispersing agent after the length diameter ratio of twin screw extruder are made of 48:1 particles, the plasticizing effect is good, more close to the proportion of plastic particles, wherein the flame retardant components accounted for 80%, good flame retardant effect, easy extrusion, foaming, selection heat stable HBCD 240 degrees high temperature resistant decomposition, effective solution to the use of traditional flame retardant particles and flame retardant corrosion problem of screw.
Red phosphorus is an effective synergist of metal hydroxide flame retardant, it can add a small amount of red phosphorus flame retardant properties of composite materials without degrading the metal hydroxide flame retardant dosage reduced.
In the use of red phosphorus flame retardant, red phosphorus masterbatch to choose the model, there is one very important point, fluidity of red phosphorus flame retardant system is not good, in the formula should pay attention to the use of dispersant and lubricant.
Three phosphoric acid (TPP) is composed of toluene containing phosphorus compounds and phenols in special catalytic reaction generated polymer, and then distilled from high temperatures, the appearance is colorless to light yellow transparent liquid, has high heat resistance, good flame retardant effect, easy to use etc..
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Containing two ammonium hydrogen phosphate and ammonium polyphosphate FPUF at 200 DEG C, here are a few beginning decomposition, the activation energy decreases slightly, that after adding phosphorus nitrogen containing flame retardant polyurethane foam agent and its decomposition temperature is greatly advanced, and the maximum decomposition temperature is larger in advance, that flame retardant polyurethane rigid foam agent the first part of the decomposition of ammonia and water at low temperature, a dilution and cooling effect of the generated partial ammonium phosphate and phosphoric acid as catalyst in high temperature dehydration in soft polyurethane foam into carbon, decreased mass loss rate and combustible materials, and most of the phosphorus in the residual carbon layer, which proved the last remaining rate higher.
The apparent activation energy in the phase of maximum decomposition rate is calculated according to the analysis results of various patterns. The 2.4 method is used to calculate the apparent activation energy at the maximum decomposition rate.
The flame retardants have a great influence on the activation energy of the kinetic parameters, and the decomposition characteristics of the material are changed and the decomposition temperature of the flame retardant polyurethane is decomposed in advance.
The initial decomposition temperature of polyurethane was postponed by the flame retardant polyurethane foam with melamine, and the decomposition activation energy was increased. But because of its self sublimation, the flame retardancy time is shorter and the final residual amount is smaller.
After the addition of flame retardants, the decomposition process of polyurethane foam becomes more complex. From the DTG curve, it is obvious that the initial decomposition temperature is ahead of schedule, and the maximum decomposition rate is basically decreasing.
The maximum decomposition rate of the polyurethane soft foam containing six sodium phosphate was the smallest, only 3.28%/min, and the maximum remaining amount (66.78%), indicating that the flame retardant effect was the best.
The flame retardancy of ammonium borate is better than that of borax.
All kinds of polyurethane rigid foam flame retardants have a significant effect on the thermal decomposition activation energy of soft polyurethane, and the same flame retardants have different effects on the activation energy of flexible polyurethane foam.
Tris(2-chloroethyl)phosphate(TCEP)
Product Name: Trichloroethyl Phosphate Flame Retardant Plasticizer; Tris (β-Chloroethyl) Phosphate; Bis (2-Chloroethyl) Phosphate With 2-Chloroethyl Phosphate; Tris (β-Chloroethyl) Phosphoric Acid Ester; Tris (2-Chloroethyl) Phosphate; TCEP; Trichloroethyl Phosphate
CAS RN: 115-96-8
EINECS Number: 204-118-5
Molecular Formula: C6H12Cl3O4P
Molecular Weight: 285.4898
Tris(2-chloroethyl)phosphate(TCEP)Use:
1. Tris (2-Chloroethyl) Phosphate Has Excellent Flame Retardancy, Excellent Resistance To Low Temperature And UV Resistance, The Steam Can Only Be Used At 225 ℃ Above The Direct Ignition Can Be Fired, But The Fire The Source Is Immediately Self-Extinguishing. This Product Is A Flame Retardant Not Only Can Improve The Material Level Of Flame Retardant Materials, But Also Improve The Flame Resistance Of Water Resistance, Acid Resistance, Cold Resistance And Antistatic Properties. Commonly Used In Flame Retardant Nitrocellulose And Acetate Fiber As The Substrate Of Paint Coatings, Unsaturated Polyester, Polyurethane, Acrylic, Phenolic Resin, Can Also Be Used For Soft PVC Plastic Flame Retardant. This Product Is Used For The Amount Of Unsaturated Polyester 10% To 20%, In The Polyurethane Rigid Foam (Flame Retardant Polyether As Raw Material) Can Be About 10% In The Soft PVC Used As Auxiliary Plastic Flame Retardant When The 5% To 10%. Flame Retardants, Uranium, Thorium, Plutonium, Technetium And Other Rare Metal Separation Solvent Or Extractant.
2. This Product Is Widely Used In Chemical Fiber Fabrics, Cellulose Acetate As A Flame Retardant, In Addition To Self-Extinguishing, But Also Improve Water Resistance, Cold Resistance And Antistatic Properties. The General Amount Of 5 To 10 Copies. This Product Is An Excellent Flame Retardant For Synthetic Materials, And Has A Good Role In The Promotion, Widely Used In Cellulose Acetate, Nitrocellulose Varnish, Ethyl Cellulose, Polyvinyl Chloride, Polyvinyl Acetate, Polyurethane, Phenolic Resin , In Addition To Self-Extinguishing Products, But Also Improve The Physical Properties Of Products, Products Feel Soft, Also Known As Oil Additives And Rare Elements Of The Extractant, And Flame Retardant Rubber Conveyor Belt Is The Main Flame Retardant Materials , The General Amount Of Added 5% To 10%.
3. Used As Additive Type Halogenated Phosphate Flame Retardant And Plasticizer. Molecules In Both Phosphorus And Chlorine, Flame Retardant Effect Is Remarkable, Not Volatile And Hydrolysis, Good Stability To Ultraviolet Light. Applicable To Phenolic Resin, Polyvinyl Chloride, Polyvinyl Acetate, Polyurethane And So On. Also Used As Nitrocellulose Coating Flame Retardant, PVC Flame Retardant Plasticizer, Metal Extractant, Gasoline Additives And Polyimide Processing Aids And So On. Can Improve Water Resistance, Weatherability, Cold Resistance, Antistatic Property. Reference Dosage 5% To 20%.
When the loading rate is less, the mixing effect of magnesium hydroxide flame retardant is poor. When the loading rate is more than 95%, it is easy to cause agglomeration of Mg (OH) 2, and it is difficult to disperse evenly. The unevenness of mixing not only reduces the flame retardancy, but also reduces the tensile strength and elongation at break, and the appearance of the products is poor. In conclusion, the Mg (OH) 2, which is controlled by special surface treatment and particle size and particle size distribution, can be well dispersed by PP with good toughness and modification, and Mg (OH) 2 can be dispersed uniformly in PP by proper mixing machine and two times feeding method. The flame-retardant PP has many mechanical properties and flame retardancy properties, such as smoke suppression, low toxicity, halogen-free, no Sb2O3, environmental friendliness and low formula cost. It has high economic and social benefits.
821 flame retardant chemical name 2- hydroxy -1 3., two (2, 4, three 6- - oxy propane) [2-Hydroxy.1, 3Di (2, 4, propane], 6-tribromophenoxy) is a kind of efficient non-toxic brominated flame retardants. White solid powder. The melting point is 193~195 C, the bromine content is 66.8%, the thermal decomposition temperature is 253. It dissolves in two chloroethane, chloroform, carbon tetrachloride, glacial acetic acid, xylene, insoluble in water, ether, ethanol, acetone, petroleum ether, ethyl acetate, etc. LD50>5000mg / kg. 821 as a addition type flame retardant, suitable for epoxy resin, unsaturated polyester resin and so on.
XPS extrusion equipment is made of masterbatch of XQ-508 heat stable flame retardant with carrier, dispersing agent after the length diameter ratio of twin screw extruder are made of 48:1 particles, the plasticizing effect is good, more close to the proportion of plastic particles, wherein the flame retardant components accounted for 80%, good flame retardant effect, easy extrusion, foaming, selection heat stable HBCD 240 degrees high temperature resistant decomposition, effective solution to the use of traditional flame retardant particles and flame retardant corrosion problem of screw.
Red phosphorus is an effective synergist of metal hydroxide flame retardant, it can add a small amount of red phosphorus flame retardant properties of composite materials without degrading the metal hydroxide flame retardant dosage reduced.
In the use of red phosphorus flame retardant, red phosphorus masterbatch to choose the model, there is one very important point, fluidity of red phosphorus flame retardant system is not good, in the formula should pay attention to the use of dispersant and lubricant.
Three phosphoric acid (TPP) is composed of toluene containing phosphorus compounds and phenols in special catalytic reaction generated polymer, and then distilled from high temperatures, the appearance is colorless to light yellow transparent liquid, has high heat resistance, good flame retardant effect, easy to use etc..
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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