News Details
Flame retardant for polyethylene
2017-9-24 10:48:58
Flame retardant for polyethylene
Polyethylene resin has many advantages: it is light, non-toxic, anti-impact performance is excellent, and the price is low, the forming process is easy, so it is widely used in the national production of various departments. However, due to its flammability (the oxygen index is only 1714), and the combustion is accompanied by the melting drop phenomenon, it is necessary to improve its flame retardant performance to be safe to use.
It is necessary to undergo several processes such as melting, decomposing, burning, burning, etc. The combustion reaction mechanism was conducted according to the mechanism of free radical reaction, which is one of the most important process decomposition, decomposition of polyethylene in the process to produce small molecule hydrocarbons, these small molecular hydrocarbons under the action of heat and oxygen can produce active high H? , HO? , and O? It can then be combined with the external molecules without gaining energy from the outside, and generate new free radicals to keep the combustion going.
Polyethylene has two types: reactive and additive. Reactive flame retardants are mainly composed of monomers with flame retardant elements to make the polymerized owner chain or side chain with flame retardant elements. Additive flame retardant is the flame retardant which is used to mix and play the flame retardant with the physical dispersion.
Polyethylene with flame retardant reactive due to its by polymerization with flame retardant function unit through chemical bond connection on the polymer structure, so the flame retardant effect lasting, and small impact on the physical and mechanical properties of polyethylene, but because of the technology and price, make its promotion and application is limited. Compared with reactive flame retardants, polyethylene is easy to use with flame retardant and relatively low price, so it is a common method for polyethylene flame-retardant.
Halogenated flame retardants have been developed in the 1970s and 1980s, with few additions and the most common flame retardant effects. Although its dosage is decreasing gradually, its yield and dosage are still the world's larger flame retardant varieties. Halogen flame retardants mainly have the chlorine and bromine series. Chlorinated paraffin, chlorinated polyethylene, tetrachloro-phthalic anhydride, tetrachlorophenol A, hexachlorocyclopentadiene and their derivatives are commonly used in chlorinated flame retardants.
Diphenyl Isooctyl Phosphate(DPOP)
English Name: Diphenyl Isooctyl Phosphate (S141,362, DPOP),Equivalent To The United States Fulu Froro Santicizer 141.
CAS NO: 1241-94-7
Molecular Weight: 362
Molecular Formula: C20H27O4P
Diphenyl Isooctyl Phosphate(DPOP)Product Usage
Mainly Used In PC ﹑ PVC ﹑ PVA ﹑ EPOXY ﹑ Phenolic Resin ﹑ Acrylic Resin ﹑ Nitrile Resin Can Be Used As Plasticizers And Rubber Additives. Can Improve The ABS Resin Heat Resistance And Transparency, But Also Can Be Used As Heat Stabilizer.
Packing: 200 Kg / Iron, 1000Kg / IBC Barrel, 20 Tons / ISOTANK.
Diphenyl Isooctyl Phosphate (S141,362, DPOP) Product Overview
Chemical Classification: Diphenyl Isooctyl Phosphate, Diphenyl 2-Ethylhexyl Phosphate
Diphenyl Isooctyl Phosphate (S141,362, DPOP) Is An Excellent Flame Retardant Plasticizer That Can Be Used In Most Industrial Polymers Including PVC And Its Copolymers, Nitrocellulose, Ethylcellulose, Poly Methyl Cellulose Methyl Ester, Polystyrene And The Like. Diphenyl Isooctyl Phosphate (S141,362, DPOP) Are Generally Used In The Manufacture Of Vinyl Sheets, Coated Fabrics, Inks, Plastics, Rubber And Plastic Foamed Organic Sol, Adhesives, Vinyl And Conveyor Belts. Due To Excellent Solubility, Improve The Performance Of Many Formulations. In Addition, It Can Be The Final Product It Offers The Following Range Of Interesting Properties Such As Flame Retardancy, Low Temperature Flexibility, Abrasion Resistance, Grease Resistance, Excellent Light Stability And Outdoor Weather Resistance And Excellent High Screen Welding Performance. Due To Its Excellent Solubility, Diphenyl Isooctyl Phosphate (S141, 362, DPOP), And Then 3 Phr Of Bismuth Oxide And 10-20 Phr Of Aluminum Hydroxide Were Added.
Diphenyl Isooctyl Phosphate (S141,362, DPOP) Can Be Used As An Excellent Flame Retardant Material For Transparent Films. In Some Fire-Resistant Harsh Colored Films, It Is Recommended To Add Diphenyl Isooctyl Phosphate (S141,362, DPOP) To Significantly Improve The Light Stability And Outdoor Weather Resistance Of The Film.
(S141,362, DPOP) With Diphenyl Phosphate And Tricresyl Phosphate In The Presence Of 10-15% Of Phthalate Plasticizer Such As DOP, Phosphoric Acid Diphenyl Isooctyl Ester (S141, 362, DPOP) Allows The Resulting Plastic To Have A Low Initial Viscosity And A Good Good False Plasticity And Storage Stability. Due To Its Good Pseudoplasticity And Film-Forming Properties It Is Recommended To Add Diphenyl Isooctyl Phosphate (S141,362, DPOP) To PMMA-Based Plastics And Nitrocellulose Coatings And Inks.
Bromide flame retardants in compound structure can be divided into bromine generation of diphenyl ether, tetrabromobisphenol A, bromine and polyol, bromine generation of phthalic anhydride, and other various kinds of new type of bromine flame retardants. The flame retardant of chlorinated flame retardant is less than that of bromine flame retardant, which is more powerful than C2Br bond bond, which is not easy to produce chlorine free radical.
After treatment of halogen flame retardant, the polyethylene material has high flame retardant properties, but also has many shortcomings, mainly manifested in:
(1) when burning, a large amount of toxic gases (HCl, HBr, etc.) are released.
(2) produce a large amount of corrosive substances;
(3) it is easy to cause environmental pollution. Brominated flame retardants, for example, have high flame retardancy, good thermal stability and little addition, which has been the most important and effective of halogen flame retardants.
However, since the issue of Dioxin in 1986, bromine flame retardants have been under great environmental pressure, and the debate on halogen flame retardants has not been stopped. Although the existing evidence is not sufficient to eliminate such an effective flame retardant, the world's leading producer of flame retardants is developing alternatives to the controversial bromine flame retardants in some specific fields.
All in all, phosphorus-containing flame retardants although has many advantages, however, due to its large amount of smoke when burning, produce a large number of toxic and corrosive gas, not only easy to cause secondary pollution, and bring great difficulties to escape and fire extinguishing. Therefore, its dosage has the tendency of decreasing gradually.
Hydrated hydroxide is currently used mainly in Mg(OH)2 and Al(OH) 3. Hydration hydroxide because it does not produce secondary pollution, good thermal stability, good with other flame retardants association effect, non-toxic, non-corrosive, non-volatile, does not produce poisonous gas, low price and wide source, has been hailed as a pollution-free flame retardant, flame retardant, smoke suppression and fill the three big functions as one of the flame retardant.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Polyethylene resin has many advantages: it is light, non-toxic, anti-impact performance is excellent, and the price is low, the forming process is easy, so it is widely used in the national production of various departments. However, due to its flammability (the oxygen index is only 1714), and the combustion is accompanied by the melting drop phenomenon, it is necessary to improve its flame retardant performance to be safe to use.
It is necessary to undergo several processes such as melting, decomposing, burning, burning, etc. The combustion reaction mechanism was conducted according to the mechanism of free radical reaction, which is one of the most important process decomposition, decomposition of polyethylene in the process to produce small molecule hydrocarbons, these small molecular hydrocarbons under the action of heat and oxygen can produce active high H? , HO? , and O? It can then be combined with the external molecules without gaining energy from the outside, and generate new free radicals to keep the combustion going.
Polyethylene has two types: reactive and additive. Reactive flame retardants are mainly composed of monomers with flame retardant elements to make the polymerized owner chain or side chain with flame retardant elements. Additive flame retardant is the flame retardant which is used to mix and play the flame retardant with the physical dispersion.
Polyethylene with flame retardant reactive due to its by polymerization with flame retardant function unit through chemical bond connection on the polymer structure, so the flame retardant effect lasting, and small impact on the physical and mechanical properties of polyethylene, but because of the technology and price, make its promotion and application is limited. Compared with reactive flame retardants, polyethylene is easy to use with flame retardant and relatively low price, so it is a common method for polyethylene flame-retardant.
Halogenated flame retardants have been developed in the 1970s and 1980s, with few additions and the most common flame retardant effects. Although its dosage is decreasing gradually, its yield and dosage are still the world's larger flame retardant varieties. Halogen flame retardants mainly have the chlorine and bromine series. Chlorinated paraffin, chlorinated polyethylene, tetrachloro-phthalic anhydride, tetrachlorophenol A, hexachlorocyclopentadiene and their derivatives are commonly used in chlorinated flame retardants.
Diphenyl Isooctyl Phosphate(DPOP)
English Name: Diphenyl Isooctyl Phosphate (S141,362, DPOP),Equivalent To The United States Fulu Froro Santicizer 141.
CAS NO: 1241-94-7
Molecular Weight: 362
Molecular Formula: C20H27O4P
Diphenyl Isooctyl Phosphate(DPOP)Product Usage
Mainly Used In PC ﹑ PVC ﹑ PVA ﹑ EPOXY ﹑ Phenolic Resin ﹑ Acrylic Resin ﹑ Nitrile Resin Can Be Used As Plasticizers And Rubber Additives. Can Improve The ABS Resin Heat Resistance And Transparency, But Also Can Be Used As Heat Stabilizer.
Packing: 200 Kg / Iron, 1000Kg / IBC Barrel, 20 Tons / ISOTANK.
Diphenyl Isooctyl Phosphate (S141,362, DPOP) Product Overview
Chemical Classification: Diphenyl Isooctyl Phosphate, Diphenyl 2-Ethylhexyl Phosphate
Diphenyl Isooctyl Phosphate (S141,362, DPOP) Is An Excellent Flame Retardant Plasticizer That Can Be Used In Most Industrial Polymers Including PVC And Its Copolymers, Nitrocellulose, Ethylcellulose, Poly Methyl Cellulose Methyl Ester, Polystyrene And The Like. Diphenyl Isooctyl Phosphate (S141,362, DPOP) Are Generally Used In The Manufacture Of Vinyl Sheets, Coated Fabrics, Inks, Plastics, Rubber And Plastic Foamed Organic Sol, Adhesives, Vinyl And Conveyor Belts. Due To Excellent Solubility, Improve The Performance Of Many Formulations. In Addition, It Can Be The Final Product It Offers The Following Range Of Interesting Properties Such As Flame Retardancy, Low Temperature Flexibility, Abrasion Resistance, Grease Resistance, Excellent Light Stability And Outdoor Weather Resistance And Excellent High Screen Welding Performance. Due To Its Excellent Solubility, Diphenyl Isooctyl Phosphate (S141, 362, DPOP), And Then 3 Phr Of Bismuth Oxide And 10-20 Phr Of Aluminum Hydroxide Were Added.
Diphenyl Isooctyl Phosphate (S141,362, DPOP) Can Be Used As An Excellent Flame Retardant Material For Transparent Films. In Some Fire-Resistant Harsh Colored Films, It Is Recommended To Add Diphenyl Isooctyl Phosphate (S141,362, DPOP) To Significantly Improve The Light Stability And Outdoor Weather Resistance Of The Film.
(S141,362, DPOP) With Diphenyl Phosphate And Tricresyl Phosphate In The Presence Of 10-15% Of Phthalate Plasticizer Such As DOP, Phosphoric Acid Diphenyl Isooctyl Ester (S141, 362, DPOP) Allows The Resulting Plastic To Have A Low Initial Viscosity And A Good Good False Plasticity And Storage Stability. Due To Its Good Pseudoplasticity And Film-Forming Properties It Is Recommended To Add Diphenyl Isooctyl Phosphate (S141,362, DPOP) To PMMA-Based Plastics And Nitrocellulose Coatings And Inks.
Bromide flame retardants in compound structure can be divided into bromine generation of diphenyl ether, tetrabromobisphenol A, bromine and polyol, bromine generation of phthalic anhydride, and other various kinds of new type of bromine flame retardants. The flame retardant of chlorinated flame retardant is less than that of bromine flame retardant, which is more powerful than C2Br bond bond, which is not easy to produce chlorine free radical.
After treatment of halogen flame retardant, the polyethylene material has high flame retardant properties, but also has many shortcomings, mainly manifested in:
(1) when burning, a large amount of toxic gases (HCl, HBr, etc.) are released.
(2) produce a large amount of corrosive substances;
(3) it is easy to cause environmental pollution. Brominated flame retardants, for example, have high flame retardancy, good thermal stability and little addition, which has been the most important and effective of halogen flame retardants.
However, since the issue of Dioxin in 1986, bromine flame retardants have been under great environmental pressure, and the debate on halogen flame retardants has not been stopped. Although the existing evidence is not sufficient to eliminate such an effective flame retardant, the world's leading producer of flame retardants is developing alternatives to the controversial bromine flame retardants in some specific fields.
All in all, phosphorus-containing flame retardants although has many advantages, however, due to its large amount of smoke when burning, produce a large number of toxic and corrosive gas, not only easy to cause secondary pollution, and bring great difficulties to escape and fire extinguishing. Therefore, its dosage has the tendency of decreasing gradually.
Hydrated hydroxide is currently used mainly in Mg(OH)2 and Al(OH) 3. Hydration hydroxide because it does not produce secondary pollution, good thermal stability, good with other flame retardants association effect, non-toxic, non-corrosive, non-volatile, does not produce poisonous gas, low price and wide source, has been hailed as a pollution-free flame retardant, flame retardant, smoke suppression and fill the three big functions as one of the flame retardant.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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