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The effect of flame retardants on material properties
2017-10-10 10:40:25
The effect of flame retardants on material properties
Red phosphorus is elemental phosphorus flame retardant mechanism is relatively simple and direct, red phosphorus P2O5 and P2O3 generated during burning, is a strong water imbibition anhydride, not only water absorption on the state of nature, and has strong dehydration properties of red phosphorus flame retardant effect on the properties of materials in red phosphorus can extract the H and O elements inside the polymer, promote into carbon, and at the same time generate phosphate adhere to the surface of materials, isolation material contact with the outside world, to achieve flame retardant.
BDP, RDP structure similar, as a liquid form, work way should be condensed phases in the field of combustion, into carbon PPO polymer by endothermic rearrangement for methylene crosslinking of polyphenols, which can be phosphate accelerated dehydration and endothermic dehydrogenation into carbon, and this kind of volatile flame retardant effect on the properties of materials in coacervate phase has the inhibitory effect of free radicals, can remove polymer on the surface of the alkyl oxygen free radicals.
Red phosphorus flame retardant effect is best, add four can meet the requirements of flame retardant, cyclic phosphate add 8, the TPP is added to the October, BDP, RDP addition amount of 12, when the MPP for 16 material can reach the standard level UL94V0.
Unlike BDP and RDP, the TPP is volatile phosphatate and volatile phosphorus compounds are effective flame inhibitors. TPP can be broken into small molecules or free radicals, which can reduce the concentration of hydrogen free radicals in the flame zone and extinguish the flame. The equation is as follows: nH3PO4HPO2+PO? other PO +H? HPOHPO + H2 +PO? PO +OH? HPO +O
In the PPO/HIPS alloy, the PPO forms a protective layer and the TPP works in the flame zone, which can inhibit the combustion of the combustible products generated by PS cracking in the gas phase.
MPP is a convergent phosphorus - nitrogen expansion type flame retardant, usually suitable for flame retardant nylon material, through the provision of acid source and gas source can achieve good flame retardant effect, according to the mechanism of flame retardant, should use effect also can in the PPO material is good, but the actual experimental results show that only when adding a large number of cases to achieve a level where V0 flame retardant effect. Furthermore, the influence of MPP flame retardants on material properties is reflected in the material toughness and is not suitable for use as a PPO/HIPS alloy flame retardant.
In the case of flame retardant mechanism and molecular structure, the higher the phosphorus content, the better the flame retardant effect, and the experiment confirmed this. All kinds of flame retardants of phosphorus content of size: red phosphorus > cyclic phosphate ester (20.8%) > MPP (15%) > RDP (10.7%) > TPP (9.4%) > BDP (8.9%).
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.
Through the above experiment, we can see that red phosphorus is the best flame retardant. It is necessary to add more than 10 flame retardants to the V0 flame retardant effect using TPP, BDP and RDP, and the thermal deformation temperature of the materials is very influential, which can not achieve the experimental purpose. The new type of ring phosphate flame retardant has the characteristics of high phosphorus content, low addition of flame retardant, high flame retardant efficiency and little influence on material performance.
Using red phosphorus flame retardant materials of the flame retardant efficiency is highest, best comprehensive mechanical properties, cyclic phosphate second, but because of the limitation of red phosphorus color is hard to free color, so the actual application by certain restrictions.
In the case of flame retardant mechanism and molecular structure, the higher the phosphorus content, the better the flame retardant.
The molecular weight of the flame retardant is better than that of the PPO, and the lower the molecular weight of the flame retardant, the greater the influence on the mechanical properties of the material.
It is effective to reduce the effect of flame retardants on the thermal deformation temperature of PPO/HIPS alloy by using the molecular weight and the molecular rigid phosphatate retardant.
Although there has been no pause in the debate on the toxic and non-toxic of brominated flame retardants at home and abroad, the bromine flame retardant is still a major force in the field of flame retardant worldwide. Of bromine series flame retardant advantage is that most of decomposition temperature at 200 ℃ ~ 300 ℃, match with all kinds of high polymer decomposition temperature, therefore in the best moment, in the gas phase and the condensed phase and flame retardant effect. Meanwhile, the flame retardant effect is good. At present, the performance and price of bromine flame retardant still have great advantage.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Red phosphorus is elemental phosphorus flame retardant mechanism is relatively simple and direct, red phosphorus P2O5 and P2O3 generated during burning, is a strong water imbibition anhydride, not only water absorption on the state of nature, and has strong dehydration properties of red phosphorus flame retardant effect on the properties of materials in red phosphorus can extract the H and O elements inside the polymer, promote into carbon, and at the same time generate phosphate adhere to the surface of materials, isolation material contact with the outside world, to achieve flame retardant.
BDP, RDP structure similar, as a liquid form, work way should be condensed phases in the field of combustion, into carbon PPO polymer by endothermic rearrangement for methylene crosslinking of polyphenols, which can be phosphate accelerated dehydration and endothermic dehydrogenation into carbon, and this kind of volatile flame retardant effect on the properties of materials in coacervate phase has the inhibitory effect of free radicals, can remove polymer on the surface of the alkyl oxygen free radicals.
Red phosphorus flame retardant effect is best, add four can meet the requirements of flame retardant, cyclic phosphate add 8, the TPP is added to the October, BDP, RDP addition amount of 12, when the MPP for 16 material can reach the standard level UL94V0.
Unlike BDP and RDP, the TPP is volatile phosphatate and volatile phosphorus compounds are effective flame inhibitors. TPP can be broken into small molecules or free radicals, which can reduce the concentration of hydrogen free radicals in the flame zone and extinguish the flame. The equation is as follows: nH3PO4HPO2+PO? other PO +H? HPOHPO + H2 +PO? PO +OH? HPO +O
In the PPO/HIPS alloy, the PPO forms a protective layer and the TPP works in the flame zone, which can inhibit the combustion of the combustible products generated by PS cracking in the gas phase.
MPP is a convergent phosphorus - nitrogen expansion type flame retardant, usually suitable for flame retardant nylon material, through the provision of acid source and gas source can achieve good flame retardant effect, according to the mechanism of flame retardant, should use effect also can in the PPO material is good, but the actual experimental results show that only when adding a large number of cases to achieve a level where V0 flame retardant effect. Furthermore, the influence of MPP flame retardants on material properties is reflected in the material toughness and is not suitable for use as a PPO/HIPS alloy flame retardant.
In the case of flame retardant mechanism and molecular structure, the higher the phosphorus content, the better the flame retardant effect, and the experiment confirmed this. All kinds of flame retardants of phosphorus content of size: red phosphorus > cyclic phosphate ester (20.8%) > MPP (15%) > RDP (10.7%) > TPP (9.4%) > BDP (8.9%).
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.
Through the above experiment, we can see that red phosphorus is the best flame retardant. It is necessary to add more than 10 flame retardants to the V0 flame retardant effect using TPP, BDP and RDP, and the thermal deformation temperature of the materials is very influential, which can not achieve the experimental purpose. The new type of ring phosphate flame retardant has the characteristics of high phosphorus content, low addition of flame retardant, high flame retardant efficiency and little influence on material performance.
Using red phosphorus flame retardant materials of the flame retardant efficiency is highest, best comprehensive mechanical properties, cyclic phosphate second, but because of the limitation of red phosphorus color is hard to free color, so the actual application by certain restrictions.
In the case of flame retardant mechanism and molecular structure, the higher the phosphorus content, the better the flame retardant.
The molecular weight of the flame retardant is better than that of the PPO, and the lower the molecular weight of the flame retardant, the greater the influence on the mechanical properties of the material.
It is effective to reduce the effect of flame retardants on the thermal deformation temperature of PPO/HIPS alloy by using the molecular weight and the molecular rigid phosphatate retardant.
Although there has been no pause in the debate on the toxic and non-toxic of brominated flame retardants at home and abroad, the bromine flame retardant is still a major force in the field of flame retardant worldwide. Of bromine series flame retardant advantage is that most of decomposition temperature at 200 ℃ ~ 300 ℃, match with all kinds of high polymer decomposition temperature, therefore in the best moment, in the gas phase and the condensed phase and flame retardant effect. Meanwhile, the flame retardant effect is good. At present, the performance and price of bromine flame retardant still have great advantage.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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