News Details
Mixed expansion flame retardant
2017-10-9 10:52:42
Mixed expansion flame retardant
The compound expansion type flame retardant is mainly phosphorous and nitrogen, without halogen and antimony oxide. Contain this kind of flame retardant polymer when heated, surface is able to generate a uniform layer of the carbon foam layer, insulation, oxygen and smoke suppression effect, and prevent the phenomenon of molten drops, has a good flame retardant performance.
It is considered as one of the promising ways to realize the non-halogenation of flame retardants. Expansion type flame retardant mixture expansion type and single component expansion type.
The mixed expansion flame retardant is a mixture of individual acid sources such as phosphate or phosphate, carbon sources such as polyols, and gas sources such as nitrogen compounds.
With phosphorus and nitrogen as active component, do not contain halogen and antimony oxide, mainly in the condensed phase during burning, can generate coke layer, to protect the lower substrate not continue to burn and produce drop, also inhibits smoke, does not produce toxic or corrosive gas, thermal stability and excellent processing performance. Suitable for flame retardant PE and PP, when the dosage is 25% ~ 30%, flame retardant material oxygen index can reach 30, flame retardant level reaches UL94V 0.
The expansion type flame retardant based on polyphosphate is a hot research hotspot. After the melamine modification APP, the melamine secondary amine salt (MPPA) was obtained with pentaerythritol and the flame retardant effect of polypropylene was studied. If polycaprolactam (PA6) is added to MPPA, it can significantly improve its flame retardation. PA6 is mainly used as a carbon agent. In addition, if the poly (2, 4 toluene 2 adipic urea) (PHU), poly (2, 4 toluene 2 ethyl 2 urea) (PEU) and benzoyl hexamethylenediamine (DBH), benzoyl ethylenediamine (DBE) as the association effect, respectively with pickled vegetable MPPA expansion type flame retardant (IFR), they all have significant to improve the flame retardant properties of polypropylene, the overall effect is PHU > DBE > PEU > DBH.
At present, there are few commercial varieties of single-component expansion flame retardants at home and abroad. Phosphorus cyanide oligomer as one-component type expansion type flame retardant research make people caused great interest, it has good stability, less smoke when burning, the limit oxygen index is high, in the aviation, aerospace, shipbuilding, oil and petrochemical industry play an important role.
Tris(2-chloroethyl)phosphate(TCEP)
Appearance: Pure Tris (2-Chloroethyl) Phosphate Is A Colorless Or Pale Yellow Oily Transparent Liquid With A Light Creamy Taste.
Refractive Index (N20D) 1.4731
Boiling Point Of 194 ° C, Flash Point Of 225 ° C
Freezing Point -64 ℃
Decomposition Temperature 240-280 ℃
Viscosity 38-47 Centipoise (20 ° C)
Phosphorus Content Of 10.8%
Chlorine Content Of 37.3%, With The General Organic Solvents (Such As Alcohol, Ketones, Aromatics, Chloroform, Etc.) Compatible, Insoluble In Aliphatic Hydrocarbons, Almost Insoluble In Water, And Hydrolytic Stability Is Good, In Alkaline Solution In A Small Amount Of Decomposition, The No Obvious Corrosion Of The Product.
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%.
The addition of single-component expansive flame retardant CN329 is made from pentaerythritol, trichlorohydrin and melamine. CN 329 is suitable for PP (polypropylene), stable at PP processing temperature, no migration, and low density of flame retardant PP, and good electrical performance.
Qiao-ling li synthesis between the two neopentyl glycol phenylene diamine double phosphonic acid ester, is a one-component expansion type flame retardant, halogen free atoms exist, good heat resistance, not easy to hydrolysis, high melting point, low moisture absorption, can be used for the flame retardant polymers. Other single-component expansion flame retardants were also three (TNGPA), new pentadiol phosphate melamine.
The flame retardant effect of three phosphor retardants (pentaerythritol condensation, ammonium salt of pentaerythritol and diammonium phosphate) was compared.
Found that when the dosage of the three phase at the same time, the flame retardancy of boxes of cardboard and heat resistance of size: diammonium phosphate > season e four alcohol condensation product of ammonium phosphate > phosphate condensation compound e four season; The effect size of water resistance is: pentaerythritol condensate > phosphate pentaerythritol condensate of > phosphate diammonium phosphate.
Magnesium hydroxide, chemical Mg(OH) 2, type 58.32. White amorphous powder. Alias caustic Magnesium stone, light burned magnesia, Magnesium hydroxide in water suspension called Magnesium hydroxide emulsion, referred to as "magnesia, English name for the Magnesium hydroxide. Magnesium hydroxide is a colorless, six-square column crystal or white powder, which is difficult to dissolve in water and alcohol, soluble in dilute acid and ammonium salt solution, and water solution is weak and alkaline. The solubility in the water is very small, but the part of the water dissolves completely.
Saturated aqueous solution of the concentration of 1.9 mg/l (18 ℃). Generate magnesium oxide lose water heated to 350 ℃. Natural mineral hydromicite in magnesium hydroxide.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
The compound expansion type flame retardant is mainly phosphorous and nitrogen, without halogen and antimony oxide. Contain this kind of flame retardant polymer when heated, surface is able to generate a uniform layer of the carbon foam layer, insulation, oxygen and smoke suppression effect, and prevent the phenomenon of molten drops, has a good flame retardant performance.
It is considered as one of the promising ways to realize the non-halogenation of flame retardants. Expansion type flame retardant mixture expansion type and single component expansion type.
The mixed expansion flame retardant is a mixture of individual acid sources such as phosphate or phosphate, carbon sources such as polyols, and gas sources such as nitrogen compounds.
With phosphorus and nitrogen as active component, do not contain halogen and antimony oxide, mainly in the condensed phase during burning, can generate coke layer, to protect the lower substrate not continue to burn and produce drop, also inhibits smoke, does not produce toxic or corrosive gas, thermal stability and excellent processing performance. Suitable for flame retardant PE and PP, when the dosage is 25% ~ 30%, flame retardant material oxygen index can reach 30, flame retardant level reaches UL94V 0.
The expansion type flame retardant based on polyphosphate is a hot research hotspot. After the melamine modification APP, the melamine secondary amine salt (MPPA) was obtained with pentaerythritol and the flame retardant effect of polypropylene was studied. If polycaprolactam (PA6) is added to MPPA, it can significantly improve its flame retardation. PA6 is mainly used as a carbon agent. In addition, if the poly (2, 4 toluene 2 adipic urea) (PHU), poly (2, 4 toluene 2 ethyl 2 urea) (PEU) and benzoyl hexamethylenediamine (DBH), benzoyl ethylenediamine (DBE) as the association effect, respectively with pickled vegetable MPPA expansion type flame retardant (IFR), they all have significant to improve the flame retardant properties of polypropylene, the overall effect is PHU > DBE > PEU > DBH.
At present, there are few commercial varieties of single-component expansion flame retardants at home and abroad. Phosphorus cyanide oligomer as one-component type expansion type flame retardant research make people caused great interest, it has good stability, less smoke when burning, the limit oxygen index is high, in the aviation, aerospace, shipbuilding, oil and petrochemical industry play an important role.
Tris(2-chloroethyl)phosphate(TCEP)
Appearance: Pure Tris (2-Chloroethyl) Phosphate Is A Colorless Or Pale Yellow Oily Transparent Liquid With A Light Creamy Taste.
Refractive Index (N20D) 1.4731
Boiling Point Of 194 ° C, Flash Point Of 225 ° C
Freezing Point -64 ℃
Decomposition Temperature 240-280 ℃
Viscosity 38-47 Centipoise (20 ° C)
Phosphorus Content Of 10.8%
Chlorine Content Of 37.3%, With The General Organic Solvents (Such As Alcohol, Ketones, Aromatics, Chloroform, Etc.) Compatible, Insoluble In Aliphatic Hydrocarbons, Almost Insoluble In Water, And Hydrolytic Stability Is Good, In Alkaline Solution In A Small Amount Of Decomposition, The No Obvious Corrosion Of The Product.
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%.
The addition of single-component expansive flame retardant CN329 is made from pentaerythritol, trichlorohydrin and melamine. CN 329 is suitable for PP (polypropylene), stable at PP processing temperature, no migration, and low density of flame retardant PP, and good electrical performance.
Qiao-ling li synthesis between the two neopentyl glycol phenylene diamine double phosphonic acid ester, is a one-component expansion type flame retardant, halogen free atoms exist, good heat resistance, not easy to hydrolysis, high melting point, low moisture absorption, can be used for the flame retardant polymers. Other single-component expansion flame retardants were also three (TNGPA), new pentadiol phosphate melamine.
The flame retardant effect of three phosphor retardants (pentaerythritol condensation, ammonium salt of pentaerythritol and diammonium phosphate) was compared.
Found that when the dosage of the three phase at the same time, the flame retardancy of boxes of cardboard and heat resistance of size: diammonium phosphate > season e four alcohol condensation product of ammonium phosphate > phosphate condensation compound e four season; The effect size of water resistance is: pentaerythritol condensate > phosphate pentaerythritol condensate of > phosphate diammonium phosphate.
Magnesium hydroxide, chemical Mg(OH) 2, type 58.32. White amorphous powder. Alias caustic Magnesium stone, light burned magnesia, Magnesium hydroxide in water suspension called Magnesium hydroxide emulsion, referred to as "magnesia, English name for the Magnesium hydroxide. Magnesium hydroxide is a colorless, six-square column crystal or white powder, which is difficult to dissolve in water and alcohol, soluble in dilute acid and ammonium salt solution, and water solution is weak and alkaline. The solubility in the water is very small, but the part of the water dissolves completely.
Saturated aqueous solution of the concentration of 1.9 mg/l (18 ℃). Generate magnesium oxide lose water heated to 350 ℃. Natural mineral hydromicite in magnesium hydroxide.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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