News Details
Flame retardant for cotton wool
2017-9-11 17:38:24
Flame retardant for cotton wool
As cotton flame retardant finishing agent, organic phosphorus flame retardants for liquid commonly, because of its low molecular weight, low vapor pressure, high decomposition temperature, thermal stability is poor, so in the application process easy volatile, decomposition, damaged the flame retardant performance, flame retardant both poor durability, and cotton fabric finishing the pollution of environment, and low molecular weight also make textiles in the process of taking the washing resistance affected by large.
In addition, the current application more cotton with phosphorus-containing flame retardant four hydroxymethyl phosphorus chloride (THPC) based flame retardant Proban and N - methylol - 3 - (dimethoxy phosphate ester) propyl ester amine (PyrovatexCP) will be released in the process of the cotton fabric finishing and taking formaldehyde. Formaldehyde is a colorless irritating gas that can be absorbed through the respiratory tract and is identified by the world health organization as suspected carcinogenic and deformities.
Therefore, there are strict rules on the amount of formaldehyde in textiles. All of these problems hinder the application of phosphor flame retardant as a durable flame retardant in cotton fabric.
This experiment using dimethyl methyl phosphate, phosphorus pentoxide, ethylene glycol and glycerol as the main raw material, through two steps reaction by molecular weight above 600, flame retardancy and thermal stability good yuan formaldehyde phosphorus-containing flame retardants, synthetic reaction conditions are studied, and the flame retardant finishing experiments on the fabric.
Cotton is synthesized with phosphorous flame retardant. Drugs: dimethyl phosphate and phosphorus pentaoxin are chemically pure. Ethylene glycol, propanediol is pure. In a blender, thermometer, straight dropper, nitrogen gas entrance of four flask adding dimethyl methyl phosphate (DMMP), heating up to 50 ℃ by decrement method batch adding P2O5, up to 90 ℃ after 6 h. Ice bath to cool down to 5 ℃ to join o polyol compounds (a mixture of ethylene glycol, glycerin), insulation at 80 ℃ 2 h. The product is a light yellow transparent liquid with high viscosity and can be dissolved with water and various organic solvents.
Tris (2-Chloroethyl) Phosphate
There Are Three Industrial Methods: Phosphorus Oxychloride And Chloroethanol Reaction; Phosphorus Trichloride And Chloroethanol Reaction Reoxidation; Phosphorus Oxychloride And Ethylene Oxide Reaction (Industrial Commonly Used Method).
1, Phosphorus Oxychloride And Ethylene Oxide To Sodium Metavanadate As A Catalyst, At 50 ° C Reaction, The Reaction By Neutralization, Washing, Vacuum Dehydration Off The Low Boiling, That Is, The Finished Product. Chlorohydrin Can Also Be Used As Raw Materials, And Phosphorus Oxychloride Or Phosphorus Trichloride Reaction To Produce Tris (2-Chloro Ethyl) Phosphate.
2, 326 Kg Of Phosphorus Oxychloride And 1.0 Kg Of Sodium Metavanadate Into The Reactor. The Nitrogen In The Autoclave Was Driven By Nitrogen, And 650 Kg Of Ethylene Oxide Was Introduced Under Vacuum And Stirred At 45 To 50 ° C For 2 To 3 Hours. Evaporation Of Excess Ethylene Oxide After Alkali Neutralization To Neutral, Washed, Vacuum Dehydrated. Finished Product.
3. Put Phosphorus Oxychloride And Sodium Metaphosphate Into The Reactor. Nitrogen To Drive The Air, In The Vacuum Under The Access To Ethylene Oxide, At 45 ~ 50 ℃ Stirring 2 ~ 3h. Evaporation Of Excess Ethylene Oxide After Alkali Neutralization To Neutral, Washed, Vacuum Dehydrated Finished.
Tris (2-Chloroethyl) Phosphate 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%.
Infrared analysis of flame retardant frc-f. Fourier infrared spectroscopy (ftir) is an effective method for characterization of polymer chemical structure. It is characterized by high characteristic, low sample size, short analysis time and convenient measurement. All infrared spectra of this paper are measured by nicolet5lopfi-ir infrared spectrometer.
The instrument specification: 400-400ocm-1, resolution 0.3 ocm-1, KBr beam splitter (7400-35ocm-1), the optical table can be dynamically adjusted continuously, DTGS detector (7600-35ocm-1), EVER-GLOIR light source.
Performance index test of flame retardant frc-f. With acetone as the solvent, bromophenol blue is the indicator and the ethanol solution of KOH is titrated to the solution from yellow to blue. Determination of solid content. Accurate weighing a certain amount of flame retardants in weighing in the beaker to clean, put in the oven at 105 ℃ drying to constant weight after weighing.
Phosphorus content determination. The phosphorus content of frc-f flame retardants was measured by phosphoric acid salivary method. The determination of viscosity. The viscosity of flame retardant frc-f was measured by NDJ-l rotary viscometer.
Fire retardant finishing process. Process: the pad (more than two dip two rolling, rolling rate 75%), dry (1 oo ℃, 3 min) - > curing (175 ℃, 2 min) - and washed (Na2CO350g/L at room temperature, 3 min) and soaping (Na2CO3, 2 g/L, soap flakes of 3 g/L, 60 + 2 ℃, 3 min) and drying. Process prescription: 300g/L of flame retardant, 50g/L for crosslinking agent, 30g/L for catalyst, 3g/L for softener, and 3-4 pH value.
Determination of flame retardant finishing fabric. Fracture strength: fracture strength adopts GB/T3923·1-1997 "determination of tensile strength and fracture elongation of fabric"; Combustion performance test: adopt GB/t545-1997 standard of vertical method of combustion performance test; Feel step grading method is used, mainly for basic features feel treated fabrics (smoothness, softness, fullness) overall score and step, the fabric feel at the end of the positioning of 5, each five parallel sample test and the final average for sample feel value, add softener finishing liquid finishing fabric also is in line with this evaluation method.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
As cotton flame retardant finishing agent, organic phosphorus flame retardants for liquid commonly, because of its low molecular weight, low vapor pressure, high decomposition temperature, thermal stability is poor, so in the application process easy volatile, decomposition, damaged the flame retardant performance, flame retardant both poor durability, and cotton fabric finishing the pollution of environment, and low molecular weight also make textiles in the process of taking the washing resistance affected by large.
In addition, the current application more cotton with phosphorus-containing flame retardant four hydroxymethyl phosphorus chloride (THPC) based flame retardant Proban and N - methylol - 3 - (dimethoxy phosphate ester) propyl ester amine (PyrovatexCP) will be released in the process of the cotton fabric finishing and taking formaldehyde. Formaldehyde is a colorless irritating gas that can be absorbed through the respiratory tract and is identified by the world health organization as suspected carcinogenic and deformities.
Therefore, there are strict rules on the amount of formaldehyde in textiles. All of these problems hinder the application of phosphor flame retardant as a durable flame retardant in cotton fabric.
This experiment using dimethyl methyl phosphate, phosphorus pentoxide, ethylene glycol and glycerol as the main raw material, through two steps reaction by molecular weight above 600, flame retardancy and thermal stability good yuan formaldehyde phosphorus-containing flame retardants, synthetic reaction conditions are studied, and the flame retardant finishing experiments on the fabric.
Cotton is synthesized with phosphorous flame retardant. Drugs: dimethyl phosphate and phosphorus pentaoxin are chemically pure. Ethylene glycol, propanediol is pure. In a blender, thermometer, straight dropper, nitrogen gas entrance of four flask adding dimethyl methyl phosphate (DMMP), heating up to 50 ℃ by decrement method batch adding P2O5, up to 90 ℃ after 6 h. Ice bath to cool down to 5 ℃ to join o polyol compounds (a mixture of ethylene glycol, glycerin), insulation at 80 ℃ 2 h. The product is a light yellow transparent liquid with high viscosity and can be dissolved with water and various organic solvents.
Tris (2-Chloroethyl) Phosphate
There Are Three Industrial Methods: Phosphorus Oxychloride And Chloroethanol Reaction; Phosphorus Trichloride And Chloroethanol Reaction Reoxidation; Phosphorus Oxychloride And Ethylene Oxide Reaction (Industrial Commonly Used Method).
1, Phosphorus Oxychloride And Ethylene Oxide To Sodium Metavanadate As A Catalyst, At 50 ° C Reaction, The Reaction By Neutralization, Washing, Vacuum Dehydration Off The Low Boiling, That Is, The Finished Product. Chlorohydrin Can Also Be Used As Raw Materials, And Phosphorus Oxychloride Or Phosphorus Trichloride Reaction To Produce Tris (2-Chloro Ethyl) Phosphate.
2, 326 Kg Of Phosphorus Oxychloride And 1.0 Kg Of Sodium Metavanadate Into The Reactor. The Nitrogen In The Autoclave Was Driven By Nitrogen, And 650 Kg Of Ethylene Oxide Was Introduced Under Vacuum And Stirred At 45 To 50 ° C For 2 To 3 Hours. Evaporation Of Excess Ethylene Oxide After Alkali Neutralization To Neutral, Washed, Vacuum Dehydrated. Finished Product.
3. Put Phosphorus Oxychloride And Sodium Metaphosphate Into The Reactor. Nitrogen To Drive The Air, In The Vacuum Under The Access To Ethylene Oxide, At 45 ~ 50 ℃ Stirring 2 ~ 3h. Evaporation Of Excess Ethylene Oxide After Alkali Neutralization To Neutral, Washed, Vacuum Dehydrated Finished.
Tris (2-Chloroethyl) Phosphate 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%.
Infrared analysis of flame retardant frc-f. Fourier infrared spectroscopy (ftir) is an effective method for characterization of polymer chemical structure. It is characterized by high characteristic, low sample size, short analysis time and convenient measurement. All infrared spectra of this paper are measured by nicolet5lopfi-ir infrared spectrometer.
The instrument specification: 400-400ocm-1, resolution 0.3 ocm-1, KBr beam splitter (7400-35ocm-1), the optical table can be dynamically adjusted continuously, DTGS detector (7600-35ocm-1), EVER-GLOIR light source.
Performance index test of flame retardant frc-f. With acetone as the solvent, bromophenol blue is the indicator and the ethanol solution of KOH is titrated to the solution from yellow to blue. Determination of solid content. Accurate weighing a certain amount of flame retardants in weighing in the beaker to clean, put in the oven at 105 ℃ drying to constant weight after weighing.
Phosphorus content determination. The phosphorus content of frc-f flame retardants was measured by phosphoric acid salivary method. The determination of viscosity. The viscosity of flame retardant frc-f was measured by NDJ-l rotary viscometer.
Fire retardant finishing process. Process: the pad (more than two dip two rolling, rolling rate 75%), dry (1 oo ℃, 3 min) - > curing (175 ℃, 2 min) - and washed (Na2CO350g/L at room temperature, 3 min) and soaping (Na2CO3, 2 g/L, soap flakes of 3 g/L, 60 + 2 ℃, 3 min) and drying. Process prescription: 300g/L of flame retardant, 50g/L for crosslinking agent, 30g/L for catalyst, 3g/L for softener, and 3-4 pH value.
Determination of flame retardant finishing fabric. Fracture strength: fracture strength adopts GB/T3923·1-1997 "determination of tensile strength and fracture elongation of fabric"; Combustion performance test: adopt GB/t545-1997 standard of vertical method of combustion performance test; Feel step grading method is used, mainly for basic features feel treated fabrics (smoothness, softness, fullness) overall score and step, the fabric feel at the end of the positioning of 5, each five parallel sample test and the final average for sample feel value, add softener finishing liquid finishing fabric also is in line with this evaluation method.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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