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Flame retardant improvement technology
2017-9-5 12:08:09
Flame retardant improvement technology
The flame retardant technology is improving rapidly. This paper introduces some improvement techniques for flame retardants.
Zhang zhiyong and other scholars adopted the chemical method and irradiation method to modify the surface of MDH, and obtained some results. The conclusion was that MDH improved the flame retardant performance of polypropylene (PP). Different surface modification methods have different effects on the mechanical properties of the composite system. With Ao203 surface modification of PP/MDH composite system of elongation at break and tensile strength was the highest, using an electron microscope (SEM) analysis showed that Ao203 obviously improve the interface bonding state of MDH and PP matrix, and make the MDH distributed more evenly in the PP.
The microencapsulation of red phosphorus is used to improve the flame retardant of flame retardant. The flame retardant mechanism of red phosphorus is a good flame retardant coagent of inorganic filler system. Form a thin layer of thin film, tightly cladding on the surface of the polymer, isolating oxygen in the air to stop the combustion. However, the use of red phosphorus alone is not enough. It is the flame retardant of ATH and MDH to improve the flame retardancy greatly. Red phosphorus is very destructive to the mechanical properties of the system, and its color limits the use range, so it needs to be modified with microencapsulation of red phosphorus.
Red phosphorus is in the red phosphorus microcapsules coated on the surface of a layer or layers of protective film formed, the cladding layer not only can prevent the red phosphorus particles with oxygen and phosphine water contact, shock and can avoid the red phosphorus due to heat and ignition. Red phosphorus microcapsules, compared with ordinary red phosphorus flame retardant efficiency is high, the effects on the physical and mechanical properties of the products is small, can improve the flame retardant and the compatibility of resin, and the low smoke, low toxicity, when mixed with resin does not emit PH3, also not easy heated by shock ignition, weatherability and stability is also better.
According to the different materials of red phosphorus coating, red phosphorus coating can be divided into three kinds: inorganic coating method, organic coating method and inorganic 2 organic compound coating method. Currently adopted more inorganic organic coated 2 red phosphorus is first on the red phosphorus coating a layer of Al (OH) 3, zinc (OH) 2 and other inorganic layer, then covered a layer of phenolic resin, melamine formaldehyde resin or epoxy organic layer, the method of surface modification is the red phosphorus ideal process.
The flame retardant technology is improving rapidly. This paper introduces some improvement techniques for flame retardants.
Zhang zhiyong and other scholars adopted the chemical method and irradiation method to modify the surface of MDH, and obtained some results. The conclusion was that MDH improved the flame retardant performance of polypropylene (PP). Different surface modification methods have different effects on the mechanical properties of the composite system. With Ao203 surface modification of PP/MDH composite system of elongation at break and tensile strength was the highest, using an electron microscope (SEM) analysis showed that Ao203 obviously improve the interface bonding state of MDH and PP matrix, and make the MDH distributed more evenly in the PP.
The microencapsulation of red phosphorus is used to improve the flame retardant of flame retardant. The flame retardant mechanism of red phosphorus is a good flame retardant coagent of inorganic filler system. Form a thin layer of thin film, tightly cladding on the surface of the polymer, isolating oxygen in the air to stop the combustion. However, the use of red phosphorus alone is not enough. It is the flame retardant of ATH and MDH to improve the flame retardancy greatly. Red phosphorus is very destructive to the mechanical properties of the system, and its color limits the use range, so it needs to be modified with microencapsulation of red phosphorus.
Red phosphorus is in the red phosphorus microcapsules coated on the surface of a layer or layers of protective film formed, the cladding layer not only can prevent the red phosphorus particles with oxygen and phosphine water contact, shock and can avoid the red phosphorus due to heat and ignition. Red phosphorus microcapsules, compared with ordinary red phosphorus flame retardant efficiency is high, the effects on the physical and mechanical properties of the products is small, can improve the flame retardant and the compatibility of resin, and the low smoke, low toxicity, when mixed with resin does not emit PH3, also not easy heated by shock ignition, weatherability and stability is also better.
According to the different materials of red phosphorus coating, red phosphorus coating can be divided into three kinds: inorganic coating method, organic coating method and inorganic 2 organic compound coating method. Currently adopted more inorganic organic coated 2 red phosphorus is first on the red phosphorus coating a layer of Al (OH) 3, zinc (OH) 2 and other inorganic layer, then covered a layer of phenolic resin, melamine formaldehyde resin or epoxy organic layer, the method of surface modification is the red phosphorus ideal process.
Tris (2-Chloroethyl) Phosphate
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 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%.
Compared with ordinary red phosphorus, the microencapsulated red phosphorus has not only the advantages of the original red phosphorus, but also the practicability. Firstly, its flame retardant efficiency is high, which has little influence on the physical and mechanical properties of the products. It can also improve the compatibility of flame retardants and resins, which can disperse the red phosphorus evenly in the resin. Second, its thermal stability is good, can be used for some need high temperature molding processing of polymer products, and low smoke, low toxicity, do not emit PH3 when mixed with resin, also not be shock ignition, greatly reduced dust explosion danger; Once again, the cladding of red phosphorus is better than normal red phosphorus in weathering, electrical performance, application period and stability in flame retardant substrate.
The expansion type flame retardant consists of three parts, which are carbon source, dewatering agent (acid source) and foaming agent (air source).
(1) carbon. It refers to the substance that can be taken from the water by dehydrating agent in the combustion process, and the carbonized substance is the material basis for forming the carbonized layer. These are mainly polyhydroxy organic compounds with high carbon content. Regular pentaerythritol and nylon 6 (PA6) are highly efficient and widely used.
(2) dehydrating agent. Refers to in the process of combustion capture come carbon agent moisture expansion type flame retardant material, main effect is to promote a polyol dehydration carbonization, it form with a certain thickness of combustion of carbon layer. The dehydrating agent is mainly some inorganic acid salts and inorganic acid esters. The most used are ammonium phosphate, phosphate, borate and silicate.
(3) foaming agent. When heated in a flame retardant system, the decomposition of a large amount of non-toxic and extinguishing gases occurs simultaneously, and the formation of a compound that expands and forms a spongy structure. Commonly used foaming agent is melamine, dicyandiamide, polyphosphate ammonium, borate, dicyandiamide formaldehyde resin and so on.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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 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%.
Compared with ordinary red phosphorus, the microencapsulated red phosphorus has not only the advantages of the original red phosphorus, but also the practicability. Firstly, its flame retardant efficiency is high, which has little influence on the physical and mechanical properties of the products. It can also improve the compatibility of flame retardants and resins, which can disperse the red phosphorus evenly in the resin. Second, its thermal stability is good, can be used for some need high temperature molding processing of polymer products, and low smoke, low toxicity, do not emit PH3 when mixed with resin, also not be shock ignition, greatly reduced dust explosion danger; Once again, the cladding of red phosphorus is better than normal red phosphorus in weathering, electrical performance, application period and stability in flame retardant substrate.
The expansion type flame retardant consists of three parts, which are carbon source, dewatering agent (acid source) and foaming agent (air source).
(1) carbon. It refers to the substance that can be taken from the water by dehydrating agent in the combustion process, and the carbonized substance is the material basis for forming the carbonized layer. These are mainly polyhydroxy organic compounds with high carbon content. Regular pentaerythritol and nylon 6 (PA6) are highly efficient and widely used.
(2) dehydrating agent. Refers to in the process of combustion capture come carbon agent moisture expansion type flame retardant material, main effect is to promote a polyol dehydration carbonization, it form with a certain thickness of combustion of carbon layer. The dehydrating agent is mainly some inorganic acid salts and inorganic acid esters. The most used are ammonium phosphate, phosphate, borate and silicate.
(3) foaming agent. When heated in a flame retardant system, the decomposition of a large amount of non-toxic and extinguishing gases occurs simultaneously, and the formation of a compound that expands and forms a spongy structure. Commonly used foaming agent is melamine, dicyandiamide, polyphosphate ammonium, borate, dicyandiamide formaldehyde resin and so on.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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