News Details
The filler type of thermoplastic plastic adds flame retardant
2017-10-15 14:40:12
The filler type of thermoplastic plastic adds flame retardant
Flame retardant is a kind of auxiliary agent which can prevent the flame propagation of polymer materials such as plastic. In the early 1950 s, bacterium acid chloride with reactive monomer developed flame retardant unsaturated polyester, the research opens a new way in the field of flame retardant, then a new reactive flame retardant monomer containing bromine and phosphorus appear constantly.
In the 1960s, a variety of filler types suitable for thermoplastic plastics were developed, most of which were bromine. From the early 1970s to the mid-1980s, the production and application of thermoplastic fillers with flame retardants were prospering.
Carried out since 1986, the flame retardant field polybrominated diphenyl ether flame retardant toxicity and environmental problems of controversy, promoted the ten pbdes class new alternatives (including expansion type flame retardant and halogen free flame retardant) research and development.
But with the increase of requirements for flame retardant and the environmental protection consciousness enhancement, no halogenated flame retardant and smoke suppression and attenuated has become the current and future packing type to add flame retardant thermoplastic frontier in the field of research. How to develop a new flame retardant with better performance, better effect and more environmental protection? A great deal of research has been carried out in this field. The new flame retardant of the 21st century will be a compound flame retardant without halogen, high efficiency, low smoke, low toxicity and multi-function.
At present, the most representative non-halogen inorganic metal compound flame retardant mainly has hydroxide (ATH) and magnesium hydroxide (MDH). ATH with flame retardant, smoke abatement, filling the three functions, coupled with its non-volatile, non-toxic, but also with a variety of material to produce synergistic flame retardant effect, therefore its dosage has maintained a high growth rate, in the flame retardant has remained at more than 40% of the proportion in the total amount. However, ATH usually needs to add more than 50% to show a good flame retardant effect.
Isopropylphenyl Phosphate(IPPP65)
Traits: Colorless Or Light Yellow Transparent Liquid
Color: ≤50
Phosphorus Content: BY8.1%
Moisture: 0.1% MAX
Flash Point: 220 ℃ MIN
Density: (D20) 1.16
Free Phenol: ≤0.05%
Viscosity: (25 ° C, CP) 64-7
Acid Value: (MgKOH / G0.1 MAX
Refractive Index: R (N23) 1.546-1.555
Isopropylphenyl Phosphate(IPPP65) Uses:
Isopropylphenyl Phosphate, Flame Retardant IPPP65 Halogen-Free Phosphate Flame Retardant Plasticizer, Will Not Twice Pollute The Environment; In The Phosphate Ester Species Is A Viscosity, Phosphorus Content Is More Moderate A Model. This Product Is Colorless And Transparent, Good Compatibility, The Use Of Both Flame Retardant And Plasticizer, In The Flame Retardant And Plasticizer To Play A Balance Between The Role, But Also To Make The Processing Of The Same Material And Its Physical Properties.
In order to overcome this shortcoming, on the one hand, it can be used to improve the granulation technology and develop in the direction of ultrafine, so as to narrow the particle size distribution. , on the other hand, for the particle surface treatment, using silane coupling agent, paraffin wax, titanate and stearic acid salt and organic silicon class to improve the mechanical strength, moreover also can be used to improve coating technologies and methods with macromolecular bonding methods to improve its performance.
The flame retardant mechanism of ATH is: (1) adding ATH to the polymer, lowering the concentration of combustible polymer; (2) to begin at about 250 ℃ dehydration, heat, inhibit polymer temperature; (3) the decomposition of the generated water vapor dilutes the concentration of combustible gas and oxygen to prevent combustion; (4) generate Al2O3 on the surface of combustible to prevent combustion. MDH is a rapid development of an additive inorganic metal flame retardant, low smoke, non-toxic, neutralizing and corrosive gases.
The flame retardant mechanism is similar to ATH. Compared with ATH, MDH high decomposition temperature of 100 ~ 150 ℃, can be used for processing temperature higher than 250 ℃ flame retardant engineering plastics, and also promote the polymer into the role of carbon, but to achieve a certain amount of flame retardant effect, content need to be more than 50%, had a great influence on the performance of the material. In order to reduce the amount of MDH in the polymer, one way is to modify MDH particles and the other is to modify the MDH surface by coating technology to improve its compatibility with the polymer.
Expandable graphite is a new type of halogen-free flame retardant, it is made of natural graphite by concentrated sulfuric acid acidification treatment, and then after washing, filtering, drying, and then expanded made under 900 ~ 1000 ℃.
The flame retardant mechanism of expandable graphite is: it is above 200 ℃ high temperature in an instant, because in absorption layer type compound decomposition of matrix, graphite will be along the axis of the structure presented several one hundred times of inflation, and at the age of 1100 ℃ maximum volume, arbitrary expansion after the final volume can reach 280 times that of the original, this feature can make expandable graphite when the fire broke out the moment the flame is extinguished by volume. At present, expandable graphite has been used in various fields, such as polyurethane foam, etc., and it is also used in structural integration, cable segmentation and fire prevention of division pipeline.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Flame retardant is a kind of auxiliary agent which can prevent the flame propagation of polymer materials such as plastic. In the early 1950 s, bacterium acid chloride with reactive monomer developed flame retardant unsaturated polyester, the research opens a new way in the field of flame retardant, then a new reactive flame retardant monomer containing bromine and phosphorus appear constantly.
In the 1960s, a variety of filler types suitable for thermoplastic plastics were developed, most of which were bromine. From the early 1970s to the mid-1980s, the production and application of thermoplastic fillers with flame retardants were prospering.
Carried out since 1986, the flame retardant field polybrominated diphenyl ether flame retardant toxicity and environmental problems of controversy, promoted the ten pbdes class new alternatives (including expansion type flame retardant and halogen free flame retardant) research and development.
But with the increase of requirements for flame retardant and the environmental protection consciousness enhancement, no halogenated flame retardant and smoke suppression and attenuated has become the current and future packing type to add flame retardant thermoplastic frontier in the field of research. How to develop a new flame retardant with better performance, better effect and more environmental protection? A great deal of research has been carried out in this field. The new flame retardant of the 21st century will be a compound flame retardant without halogen, high efficiency, low smoke, low toxicity and multi-function.
At present, the most representative non-halogen inorganic metal compound flame retardant mainly has hydroxide (ATH) and magnesium hydroxide (MDH). ATH with flame retardant, smoke abatement, filling the three functions, coupled with its non-volatile, non-toxic, but also with a variety of material to produce synergistic flame retardant effect, therefore its dosage has maintained a high growth rate, in the flame retardant has remained at more than 40% of the proportion in the total amount. However, ATH usually needs to add more than 50% to show a good flame retardant effect.
Isopropylphenyl Phosphate(IPPP65)
Traits: Colorless Or Light Yellow Transparent Liquid
Color: ≤50
Phosphorus Content: BY8.1%
Moisture: 0.1% MAX
Flash Point: 220 ℃ MIN
Density: (D20) 1.16
Free Phenol: ≤0.05%
Viscosity: (25 ° C, CP) 64-7
Acid Value: (MgKOH / G0.1 MAX
Refractive Index: R (N23) 1.546-1.555
Isopropylphenyl Phosphate(IPPP65) Uses:
Isopropylphenyl Phosphate, Flame Retardant IPPP65 Halogen-Free Phosphate Flame Retardant Plasticizer, Will Not Twice Pollute The Environment; In The Phosphate Ester Species Is A Viscosity, Phosphorus Content Is More Moderate A Model. This Product Is Colorless And Transparent, Good Compatibility, The Use Of Both Flame Retardant And Plasticizer, In The Flame Retardant And Plasticizer To Play A Balance Between The Role, But Also To Make The Processing Of The Same Material And Its Physical Properties.
In order to overcome this shortcoming, on the one hand, it can be used to improve the granulation technology and develop in the direction of ultrafine, so as to narrow the particle size distribution. , on the other hand, for the particle surface treatment, using silane coupling agent, paraffin wax, titanate and stearic acid salt and organic silicon class to improve the mechanical strength, moreover also can be used to improve coating technologies and methods with macromolecular bonding methods to improve its performance.
The flame retardant mechanism of ATH is: (1) adding ATH to the polymer, lowering the concentration of combustible polymer; (2) to begin at about 250 ℃ dehydration, heat, inhibit polymer temperature; (3) the decomposition of the generated water vapor dilutes the concentration of combustible gas and oxygen to prevent combustion; (4) generate Al2O3 on the surface of combustible to prevent combustion. MDH is a rapid development of an additive inorganic metal flame retardant, low smoke, non-toxic, neutralizing and corrosive gases.
The flame retardant mechanism is similar to ATH. Compared with ATH, MDH high decomposition temperature of 100 ~ 150 ℃, can be used for processing temperature higher than 250 ℃ flame retardant engineering plastics, and also promote the polymer into the role of carbon, but to achieve a certain amount of flame retardant effect, content need to be more than 50%, had a great influence on the performance of the material. In order to reduce the amount of MDH in the polymer, one way is to modify MDH particles and the other is to modify the MDH surface by coating technology to improve its compatibility with the polymer.
Expandable graphite is a new type of halogen-free flame retardant, it is made of natural graphite by concentrated sulfuric acid acidification treatment, and then after washing, filtering, drying, and then expanded made under 900 ~ 1000 ℃.
The flame retardant mechanism of expandable graphite is: it is above 200 ℃ high temperature in an instant, because in absorption layer type compound decomposition of matrix, graphite will be along the axis of the structure presented several one hundred times of inflation, and at the age of 1100 ℃ maximum volume, arbitrary expansion after the final volume can reach 280 times that of the original, this feature can make expandable graphite when the fire broke out the moment the flame is extinguished by volume. At present, expandable graphite has been used in various fields, such as polyurethane foam, etc., and it is also used in structural integration, cable segmentation and fire prevention of division pipeline.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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