News Details
Flame retardant magnesium hydroxide
2017-9-8 16:43:39
Flame retardant magnesium hydroxide
Magnesium hydroxide and aluminum hydroxide are basically similar in principle, and also have the effect of flame retarding and smoke suppression. Its advantage mainly displays in: has the very good smoke suppression effect, the smoke elimination ability is better than that of aluminum hydroxide, experiments show that the magnesium hydroxide adding amount of 9% has obvious smoke abatement effect, when the maximum relative smoke density decreased from 2556 to 2556; It does not produce harmful gases, it does not affect the electrical insulation of the resin, it belongs to the green products, and its non-toxic performance is in the preparation, use process and waste disposal.
Preparation process without emissions of harmful substances and the main raw material can make use of mother liquid, driving the comprehensive utilization of Marine resources, solve baysalt bittern zero emissions, completely solve the pollution problem, the breakdown products of magnesium oxide, magnesium hydroxide flame retardant can neutralize the acidic and corrosive gas in the combustion process (sulfur dioxide, carbon dioxide and nitrogen dioxide).
Thermal decomposition temperature is 340 ℃ 100 ℃ higher than aluminum hydroxide, make add magnesium hydroxide flame retardant plastic can withstand higher processing temperature, extrusion speed, shorten the molding time, at the same time its decomposition can (1.37 kJ/g) is larger than that of aluminum hydroxide can decompose high (1.17 kJ/g), and also has a high heat capacity by 17%, greatly improving the flame retardant efficiency.
Flame retardant type magnesium hydroxide flame retardant effect when used alone, adding quantity is big, therefore, and similar mentioned aluminum hydroxide, people often surface modification for magnesium hydroxide, in order to improve its flame retardant effect. Silane coupling agent and stearic acid, oleic acid, calcium magnesium mixture, the surface modification for magnesium hydroxide treatment, both reach the purpose of improving properties of magnesium hydroxide, and forms a good carbide in polymer material is burned, further improve the mechanical properties of flame retardant and mechanical material .
Using chemical coprecipitation preparation of aluminum hydroxide and magnesium hydroxide flame retardant, it can play the two flame retardant effect, at the same time improve flame temperature, increase the heat absorption, reduce the filling quantity, greatly improve the physical properties of the polymer.
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%.
The inorganic phosphorus of flame retardant was introduced. Research and use of inorganic phosphorus flame retardant has a long history, in 1820, cover. Aluminum Isaac to the problem of the flame retardant of textiles was studied systematically, he took advantage of ammonium phosphate, ammonium chloride and boric acid, inorganic compounds configured to suitable for flame retardant fiber, and successfully in Paris theatre curtain on flame retardant effect. The inorganic phosphor flame retardants mainly include red phosphorus and various phosphate, phosphoramide and phospho-nitrogenous compounds.
The flame retardant mechanism of flame retardant and flame retardant of flame retardant is the main mechanism of flame retardant. Flame retardant is condensed phases of phosphorus flame retardant thermal decomposition generated oxygen acid, can this kind of acid catalytic dehydration hydrocarbon compounds into charcoal, slows the mass loss of material and fuel production, and most of the phosphorus residue in coal layer. Studies have shown that phospho-containing polymer combustion is much higher than the corresponding polymer, and it can have a good flame retardant effect when the phosphorus content is low. The flame retardant combustion is the combustion generation of volatile phosphorus compounds in the gas phase to inhibit combustion chain reaction.
Red phosphorus of flame retardant is introduced. The red phosphorus can be used as an effective flame retardant, but the red phosphorus can be used in the process of easy to absorb moisture, easy to oxidize, release highly toxic gas, dust explosion and other shortcomings. By physical or chemical method in the red phosphorus coated on the surface of a layer or layers of continuous and dense inorganic, organic protective film, the red phosphorus particles "packaging" rise, form red phosphorus microcapsules flame retardant, thus greatly improving the red phosphorus flame retardant effect. In addition, the synergistic effect of red phosphorus and nitrogen, silicon and other elements can be applied to flame retardant of polymer materials.
To pass through the wet grinding pretreatment, red phosphorus under certain pH and dosage of surface active agent, using melamine resin coated pre polymers in situ method, the microcapsule can be obtained from red phosphorus flame retardant of ultrafine powder, so that red phosphorus flame retardants achieved the effect of high efficiency, low toxicity and low smoke.
The reactive flame retardants and epoxy resins were used to introduce the flame retardant phosphorus into the molecular structure of epoxy resin. The use of urea-formaldehyde resin prepolymer to cover red phosphorus can also achieve good results. In situ polymerization of red phosphorus microcapsule flame retardants, the stability of the flame retardants of red phosphorus microcapsules, the physical properties of the water absorption rate were significantly improved compared with that of uncoated red phosphorus. The properties of flame retardant materials of red phosphorus microcapsules are significantly better than that of uncoated materials. The compound system of red phosphorus and borate zinc in microcapsules has good smoke suppression performance.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Magnesium hydroxide and aluminum hydroxide are basically similar in principle, and also have the effect of flame retarding and smoke suppression. Its advantage mainly displays in: has the very good smoke suppression effect, the smoke elimination ability is better than that of aluminum hydroxide, experiments show that the magnesium hydroxide adding amount of 9% has obvious smoke abatement effect, when the maximum relative smoke density decreased from 2556 to 2556; It does not produce harmful gases, it does not affect the electrical insulation of the resin, it belongs to the green products, and its non-toxic performance is in the preparation, use process and waste disposal.
Preparation process without emissions of harmful substances and the main raw material can make use of mother liquid, driving the comprehensive utilization of Marine resources, solve baysalt bittern zero emissions, completely solve the pollution problem, the breakdown products of magnesium oxide, magnesium hydroxide flame retardant can neutralize the acidic and corrosive gas in the combustion process (sulfur dioxide, carbon dioxide and nitrogen dioxide).
Thermal decomposition temperature is 340 ℃ 100 ℃ higher than aluminum hydroxide, make add magnesium hydroxide flame retardant plastic can withstand higher processing temperature, extrusion speed, shorten the molding time, at the same time its decomposition can (1.37 kJ/g) is larger than that of aluminum hydroxide can decompose high (1.17 kJ/g), and also has a high heat capacity by 17%, greatly improving the flame retardant efficiency.
Flame retardant type magnesium hydroxide flame retardant effect when used alone, adding quantity is big, therefore, and similar mentioned aluminum hydroxide, people often surface modification for magnesium hydroxide, in order to improve its flame retardant effect. Silane coupling agent and stearic acid, oleic acid, calcium magnesium mixture, the surface modification for magnesium hydroxide treatment, both reach the purpose of improving properties of magnesium hydroxide, and forms a good carbide in polymer material is burned, further improve the mechanical properties of flame retardant and mechanical material .
Using chemical coprecipitation preparation of aluminum hydroxide and magnesium hydroxide flame retardant, it can play the two flame retardant effect, at the same time improve flame temperature, increase the heat absorption, reduce the filling quantity, greatly improve the physical properties of the polymer.
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%.
The inorganic phosphorus of flame retardant was introduced. Research and use of inorganic phosphorus flame retardant has a long history, in 1820, cover. Aluminum Isaac to the problem of the flame retardant of textiles was studied systematically, he took advantage of ammonium phosphate, ammonium chloride and boric acid, inorganic compounds configured to suitable for flame retardant fiber, and successfully in Paris theatre curtain on flame retardant effect. The inorganic phosphor flame retardants mainly include red phosphorus and various phosphate, phosphoramide and phospho-nitrogenous compounds.
The flame retardant mechanism of flame retardant and flame retardant of flame retardant is the main mechanism of flame retardant. Flame retardant is condensed phases of phosphorus flame retardant thermal decomposition generated oxygen acid, can this kind of acid catalytic dehydration hydrocarbon compounds into charcoal, slows the mass loss of material and fuel production, and most of the phosphorus residue in coal layer. Studies have shown that phospho-containing polymer combustion is much higher than the corresponding polymer, and it can have a good flame retardant effect when the phosphorus content is low. The flame retardant combustion is the combustion generation of volatile phosphorus compounds in the gas phase to inhibit combustion chain reaction.
Red phosphorus of flame retardant is introduced. The red phosphorus can be used as an effective flame retardant, but the red phosphorus can be used in the process of easy to absorb moisture, easy to oxidize, release highly toxic gas, dust explosion and other shortcomings. By physical or chemical method in the red phosphorus coated on the surface of a layer or layers of continuous and dense inorganic, organic protective film, the red phosphorus particles "packaging" rise, form red phosphorus microcapsules flame retardant, thus greatly improving the red phosphorus flame retardant effect. In addition, the synergistic effect of red phosphorus and nitrogen, silicon and other elements can be applied to flame retardant of polymer materials.
To pass through the wet grinding pretreatment, red phosphorus under certain pH and dosage of surface active agent, using melamine resin coated pre polymers in situ method, the microcapsule can be obtained from red phosphorus flame retardant of ultrafine powder, so that red phosphorus flame retardants achieved the effect of high efficiency, low toxicity and low smoke.
The reactive flame retardants and epoxy resins were used to introduce the flame retardant phosphorus into the molecular structure of epoxy resin. The use of urea-formaldehyde resin prepolymer to cover red phosphorus can also achieve good results. In situ polymerization of red phosphorus microcapsule flame retardants, the stability of the flame retardants of red phosphorus microcapsules, the physical properties of the water absorption rate were significantly improved compared with that of uncoated red phosphorus. The properties of flame retardant materials of red phosphorus microcapsules are significantly better than that of uncoated materials. The compound system of red phosphorus and borate zinc in microcapsules has good smoke suppression performance.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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