News Details
Boron flame retardant
2017-10-5 12:01:51
Boron flame retardant
There are many kinds of flame retardants, and their chemical structure and use methods are also different. The most commonly used flame retardant main flame retardant elements in the periodic table the first Ⅲ group of boron and aluminum; The first Ⅴ group of nitrogen, phosphorus, antimony, etc; The sulfur in the first Ⅵ group; The first Ⅶ group of fluorine, chlorine, bromine, etc of the compounds.
In addition, zinc, barium, magnesium, titanium, tin, iron, zirconium, molybdenum and other metal compounds can also be used as flame retardants. However, in practice, the flame retardants are mainly the compounds of halogen and phosphorus as the central flame retardant elements. Halogen flame retardant, although the flame retardant effect is better, but because of the secondary pollution in the use and combustion process, and gradually is replaced by halogen-free flame retardant. In recent years, with the new environmental requirements and regulations, boron flame retardant has attracted more and more attention with its excellent flame retardant, low toxicity and smoke suppression.
As far back as 1735, the British Obavcasghac won the patent, borax, alum, ferric sulfate aqueous solution as a textile flame retardant finishing agent, this method of flame retardant can greatly reduce the combustibility and ignition performance of the fabric. Thus, inorganic boric acid and borate are the two oldest flame retardants, which are mainly used in cellulose fibers such as cotton and paper. As a result of the washing fastness problems, the application of them on the fabric by certain restrictions, but it is reported that if the inorganic boron flame retardants and resin composite flame retardant finishing system, will improve its durability.
The present use of boron flame retardant zinc borate products in boron flame retardant is called Fire Brake ZB, which is called FB flame retardant, and zinc borate can obviously improve the Fire resistance of products. At present, the flammability of materials has become a hot topic in the field of flame retardant, and many countries abroad have developed a series of flammable standard, which has attracted attention in China in recent years.
In recent years, new flame retardant agents have been springing up, and there are more stringent requirements on the environmental protection of flame retardant and its use. The development trend of flame retardant in the 2l century has been developed without halogenation, toxication, compound and smoke-suppression. Boron compound is a common inorganic flame retardant, mainly including ammonium pentaborate, sodium borate, ammonium fluoroborate, barium borate and zinc borate.
Cresyl Diphenyl Phosphate(CDP) Export Essential Information
Chinese Name: Toluene Diphenyl Phosphate, Flame Retardant CDP
English Name: Cresyl Diphenyl Phosphate
Traits: Light Yellow Transparent Liquid
Free Phenol: (0.1% Max)
Moisture% (0.1% Max)
Flash Point (Open Cup): (220Min)
Acid Value (MgKOH / G): (0.1MAX)
Relative Density (25 ℃): (1.195-1.212)
CAS No.:26444-49-5
Hazard Category: 6.1
HS: 29199000
Refund (%): 9%
Status Of Goods: Exports Of Category 6 Dangerous Goods.
Toluene Diphenyl Phosphate Flame Retardant CDP Raw Materials: Cresol, Phenol, Phosphorus Oxychloride.
Net Weight 200KG / Galvanized Iron Drum (A Small Cabinet To Play With 16 Tons), 1000KG / IB Bucket (A Small Cabinet 18 Tons) Or 23 Tons ISOTANK.
Cresyl Diphenyl Phosphate(CDP) Use
This Product Is Flame Retardant Plasticizer, And Resin Compatibility, For Polyvinyl Acetal, Nitrocellulose, Polyvinyl Chloride, Natural Rubber And Synthetic Rubber; Can Also Be Used For Synthetic Lubricants And Hydraulic Oil; Substitutes For Triphenyl Phosphate. Applicable To Polyvinyl Chloride, Vinyl Chloride Copolymer, Polyvinyl Acetal, Nitrocellulose, Ethyl Cellulose, Cellulose Acetate Butyrate And So On.
In boron flame retardant, the most important is zinc borate. The following varieties are: ZnO?B2O3? 2H2O, 3ZnO?2B2O3? 5H2O, 2ZnO?3B2O3?3.5 H2O, 2ZnO?3B2O3? 7H2O, 4ZnO?B2O3? H2O, etc.
The most common type of zinc borate zinc is 2ZnO?3B2O3?3.5 H2O. Its physical and chemical properties are as follows: white crystalline powder, melting point 980 ℃, density 2.8, the refractive index of 1.58, insoluble in water and general organic solvent, can dissolve in ammonia production complex salt, good thermal stability, crystallization water above 300 ℃ losing, fine granularity, the average particle size is 2 to 10 microns, toxic LD50 > 10 g/kg (oral) mice, no inhalation and contact toxicity, do not produce stimulation to the skin, no corrosion, no irritating to eyes, non-toxic, non-polluting inorganic flame retardants.
As a new flame retardant additive, zinc borate has the following advantages:
(1) the flame retardant efficiency, in most systems containing halide epoxy resin and unsaturated polyester, zinc borate and antimony oxide, aluminum hydroxide, such as have a synergistic effect, under the condition of not reduce the material flame retardant grade, can effectively reduce the cost of materials, the amount of smoke.
(2) promote carbon layer formation, zinc borate can help in porous carbon materials generated when burning layer, and the carbon layer can be stable by boron trioxide, zinc borate under polymer combustion temperature and aluminum hydroxide can also generate rigid porous residue, such as glass, ceramics, is advantageous to the heat insulation material and stop the spread of the air entering the interior.
(3) prevent the formation of molten droplets, while the flame retardant resin can be reduced, thus reducing the secondary fire caused by the melting drop.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
There are many kinds of flame retardants, and their chemical structure and use methods are also different. The most commonly used flame retardant main flame retardant elements in the periodic table the first Ⅲ group of boron and aluminum; The first Ⅴ group of nitrogen, phosphorus, antimony, etc; The sulfur in the first Ⅵ group; The first Ⅶ group of fluorine, chlorine, bromine, etc of the compounds.
In addition, zinc, barium, magnesium, titanium, tin, iron, zirconium, molybdenum and other metal compounds can also be used as flame retardants. However, in practice, the flame retardants are mainly the compounds of halogen and phosphorus as the central flame retardant elements. Halogen flame retardant, although the flame retardant effect is better, but because of the secondary pollution in the use and combustion process, and gradually is replaced by halogen-free flame retardant. In recent years, with the new environmental requirements and regulations, boron flame retardant has attracted more and more attention with its excellent flame retardant, low toxicity and smoke suppression.
As far back as 1735, the British Obavcasghac won the patent, borax, alum, ferric sulfate aqueous solution as a textile flame retardant finishing agent, this method of flame retardant can greatly reduce the combustibility and ignition performance of the fabric. Thus, inorganic boric acid and borate are the two oldest flame retardants, which are mainly used in cellulose fibers such as cotton and paper. As a result of the washing fastness problems, the application of them on the fabric by certain restrictions, but it is reported that if the inorganic boron flame retardants and resin composite flame retardant finishing system, will improve its durability.
The present use of boron flame retardant zinc borate products in boron flame retardant is called Fire Brake ZB, which is called FB flame retardant, and zinc borate can obviously improve the Fire resistance of products. At present, the flammability of materials has become a hot topic in the field of flame retardant, and many countries abroad have developed a series of flammable standard, which has attracted attention in China in recent years.
In recent years, new flame retardant agents have been springing up, and there are more stringent requirements on the environmental protection of flame retardant and its use. The development trend of flame retardant in the 2l century has been developed without halogenation, toxication, compound and smoke-suppression. Boron compound is a common inorganic flame retardant, mainly including ammonium pentaborate, sodium borate, ammonium fluoroborate, barium borate and zinc borate.
Cresyl Diphenyl Phosphate(CDP) Export Essential Information
Chinese Name: Toluene Diphenyl Phosphate, Flame Retardant CDP
English Name: Cresyl Diphenyl Phosphate
Traits: Light Yellow Transparent Liquid
Free Phenol: (0.1% Max)
Moisture% (0.1% Max)
Flash Point (Open Cup): (220Min)
Acid Value (MgKOH / G): (0.1MAX)
Relative Density (25 ℃): (1.195-1.212)
CAS No.:26444-49-5
Hazard Category: 6.1
HS: 29199000
Refund (%): 9%
Status Of Goods: Exports Of Category 6 Dangerous Goods.
Toluene Diphenyl Phosphate Flame Retardant CDP Raw Materials: Cresol, Phenol, Phosphorus Oxychloride.
Net Weight 200KG / Galvanized Iron Drum (A Small Cabinet To Play With 16 Tons), 1000KG / IB Bucket (A Small Cabinet 18 Tons) Or 23 Tons ISOTANK.
Cresyl Diphenyl Phosphate(CDP) Use
This Product Is Flame Retardant Plasticizer, And Resin Compatibility, For Polyvinyl Acetal, Nitrocellulose, Polyvinyl Chloride, Natural Rubber And Synthetic Rubber; Can Also Be Used For Synthetic Lubricants And Hydraulic Oil; Substitutes For Triphenyl Phosphate. Applicable To Polyvinyl Chloride, Vinyl Chloride Copolymer, Polyvinyl Acetal, Nitrocellulose, Ethyl Cellulose, Cellulose Acetate Butyrate And So On.
In boron flame retardant, the most important is zinc borate. The following varieties are: ZnO?B2O3? 2H2O, 3ZnO?2B2O3? 5H2O, 2ZnO?3B2O3?3.5 H2O, 2ZnO?3B2O3? 7H2O, 4ZnO?B2O3? H2O, etc.
The most common type of zinc borate zinc is 2ZnO?3B2O3?3.5 H2O. Its physical and chemical properties are as follows: white crystalline powder, melting point 980 ℃, density 2.8, the refractive index of 1.58, insoluble in water and general organic solvent, can dissolve in ammonia production complex salt, good thermal stability, crystallization water above 300 ℃ losing, fine granularity, the average particle size is 2 to 10 microns, toxic LD50 > 10 g/kg (oral) mice, no inhalation and contact toxicity, do not produce stimulation to the skin, no corrosion, no irritating to eyes, non-toxic, non-polluting inorganic flame retardants.
As a new flame retardant additive, zinc borate has the following advantages:
(1) the flame retardant efficiency, in most systems containing halide epoxy resin and unsaturated polyester, zinc borate and antimony oxide, aluminum hydroxide, such as have a synergistic effect, under the condition of not reduce the material flame retardant grade, can effectively reduce the cost of materials, the amount of smoke.
(2) promote carbon layer formation, zinc borate can help in porous carbon materials generated when burning layer, and the carbon layer can be stable by boron trioxide, zinc borate under polymer combustion temperature and aluminum hydroxide can also generate rigid porous residue, such as glass, ceramics, is advantageous to the heat insulation material and stop the spread of the air entering the interior.
(3) prevent the formation of molten droplets, while the flame retardant resin can be reduced, thus reducing the secondary fire caused by the melting drop.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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