News Details
Engineering polystyrene flame retardant
2017-11-7 19:12:22
Engineering polystyrene flame retardant
In recent years, all kinds of Engineering polystyrene flame retardants have been applied to polystyrene more and more. At the same time, the engineering polystyrene flame retardant has become the main flame retardant system of this kind of polymer.
"On the restriction of the use of certain hazardous substances in electrical and electronic equipment in the instruction" (RoHS), "chemicals registration, evaluation, authorization and restriction" (REACH) "and" waste electrical and electronic equipment (WEEE) and other regulations to promote the development of engineering of polystyrene flame retardant. The three are European laws, but many other countries today have enacted similar rules.
Another law also plays a role, that is, the pan European rail fire new standard EN 45545, which will be in full effect in March 2016. The new standard defines test methods, limits and requirements for components (R1-R26). For example, R22 and R23 provides the maximum use of the connector materials can be used for series (the first is the internal application, followed by external application), limiting oxygen index (LOI), smoke concentration and any toxic gas produced. The hazard level HL1-HL3 illustrates the severity of the test, with the highest HL3 rating.
At present, there is no flame retardant standards and regulations for automotive components and systems, except for the internal components of the federal motor vehicle safety standards (FMVSS) 302. However, with the improvement of the industry's attention to vehicle safety, it is clear that there will be new requirements (FMVSS 302 is just the fire spread test. Foam, film and textiles need to be added to flame retardant to pass the test, and the injection molding is usually not required.
In the recent ten years, the National Fire Protection Association (NFPA) issued a fire and dangerous Guide (NFPA 556), to extend the passengers in the event of a fire can be used to escape or to accept aid from the vehicle in time, so as to improve passenger vehicle safety. This is still a guiding document, but it affects the government and industry, and is likely to promote the automotive manufacturers to improve and increase the use of flame-retardant plastics in key components.
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP)
Appearance: Colorless Viscous Liquid
Melting Point: -64 ℃
Boiling Point: 315 ℃
Density: 1.512
Flash Point: 249 ℃
Refractive Index: N20 / D 1.503
Specific Gravity 1.490-1.510
Chlorine Content Of 49.5% ± 0.5
Color Value Max 100
Water Content 0.10% Max
Viscosity (25 ° C) 1500-1800 CPS
Acidity (Mg KOH / G 0.10 Max
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP) Use:
The Product Has A High Efficiency Flame Retardant, Low Volatility, High Thermal Stability, Water Resistance, Alkali Stable And Soluble In Most Organic Substances, Processing Performance, With Plastic, Moisture, Anti-Static, Anti-Pull, Anti-Compression Performance. Widely Used In Unsaturated Polyester, Polyurethane Foam, Epoxy Resin, Phenolic Resin, Rubber, Soft Polyvinyl Chloride, Synthetic Fibers And Other Plastics And Coatings At High Temperature Pyrolysis, Can Be Used As Emulsifier And Explosion-Proof Agent
Flame retardant polyamides are mostly used in electronic and electrical engineering, civil engineering and transportation. The car has gradually become the key areas of development, because the battery shell, connectors, sensors and (currently less demand, but in the future there may be demand) fuel cell separator materials such as high on the mechanical and electrical properties and flame retardant requirements etc.. Automotive applications account for about 45% of the total market for injection polyamides, but most of them do not have flame retardancy at present.
Electronic and electrical applications account for more than 25% of the total market for injection polyamide, with the majority of which have strict flame retardant requirements (usually UL 94 V0), and are increasingly inclined to require thickness as low as 0.4mm. General industrial and engineering applications (such as circuit breakers and switches) account for nearly 10% of the total market, and these applications also have some requirements for flame retardancy.
LED lighting, photovoltaic, automotive electronics and other new applications are halogen free flame retardant polyamide development of the greatest opportunities. In particular, LED applications also require materials with UV resistance characteristics. The computer server market of Internet of things and cloud computing is also a great opportunity for development.
Polyamide 6 and 66 are semi crystalline polymers. They are well known for their good mechanical properties and good thermal stability, and are competitive in price. Of course, flame retardancy is not the inherent property of polyamide 6 and 66. Compared with engineering plastics polycarbonate and polyester, the heat release rate of polyamide is higher than that of polycarbonate under fire, but lower than that of polyester. Through the industry test standards, the required dose of fire retardant is also affected.
In many applications, are in need of glass fiber reinforced polyamide, which have a negative impact on the performance of flame retardant (like other polymers), because the glass fiber like a wick. Therefore, although unreinforced polyamides may reach UL94 V2 flame retardant grade, the same polymer reinforced by glass fiber may not qualify for rating.
From the polymer manufacturers to the entire supply chain of OEM, many trends and economic drivers have had an impact on the development of new flame retardants and flame retardant composites. These include: emphasis on the "green" performance, tinting power, laser marking, processing speed and miniaturization. Therefore, the modified plant and molder must have a thorough understanding of the processing of plastics can be used to which a flame retardant, how to use and make good use of its performance and its influence on other important performance and sustainability in the aspects of the performance, this is a very important but very difficult to define the problem.
These different additives not only produce different ways of action, but also have different effects with different dosages, which will have different effects on the properties of polymers. For example, in glass fiber reinforced PA6, the addition of magnesium hydroxide is more than 45% to achieve the V0 performance, while the brominated polystyrene / three oxidation two antimony synergistic system only needs more than 26% to achieve the same effect. Organic phosphonate with nitrogen synergist is better than polyamide 6 and 66, only 20% is needed in semi aromatic polyamide, and only 12-15% is needed in semi aromatic polyamide.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
In recent years, all kinds of Engineering polystyrene flame retardants have been applied to polystyrene more and more. At the same time, the engineering polystyrene flame retardant has become the main flame retardant system of this kind of polymer.
"On the restriction of the use of certain hazardous substances in electrical and electronic equipment in the instruction" (RoHS), "chemicals registration, evaluation, authorization and restriction" (REACH) "and" waste electrical and electronic equipment (WEEE) and other regulations to promote the development of engineering of polystyrene flame retardant. The three are European laws, but many other countries today have enacted similar rules.
Another law also plays a role, that is, the pan European rail fire new standard EN 45545, which will be in full effect in March 2016. The new standard defines test methods, limits and requirements for components (R1-R26). For example, R22 and R23 provides the maximum use of the connector materials can be used for series (the first is the internal application, followed by external application), limiting oxygen index (LOI), smoke concentration and any toxic gas produced. The hazard level HL1-HL3 illustrates the severity of the test, with the highest HL3 rating.
At present, there is no flame retardant standards and regulations for automotive components and systems, except for the internal components of the federal motor vehicle safety standards (FMVSS) 302. However, with the improvement of the industry's attention to vehicle safety, it is clear that there will be new requirements (FMVSS 302 is just the fire spread test. Foam, film and textiles need to be added to flame retardant to pass the test, and the injection molding is usually not required.
In the recent ten years, the National Fire Protection Association (NFPA) issued a fire and dangerous Guide (NFPA 556), to extend the passengers in the event of a fire can be used to escape or to accept aid from the vehicle in time, so as to improve passenger vehicle safety. This is still a guiding document, but it affects the government and industry, and is likely to promote the automotive manufacturers to improve and increase the use of flame-retardant plastics in key components.
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP)
Appearance: Colorless Viscous Liquid
Melting Point: -64 ℃
Boiling Point: 315 ℃
Density: 1.512
Flash Point: 249 ℃
Refractive Index: N20 / D 1.503
Specific Gravity 1.490-1.510
Chlorine Content Of 49.5% ± 0.5
Color Value Max 100
Water Content 0.10% Max
Viscosity (25 ° C) 1500-1800 CPS
Acidity (Mg KOH / G 0.10 Max
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP) Use:
The Product Has A High Efficiency Flame Retardant, Low Volatility, High Thermal Stability, Water Resistance, Alkali Stable And Soluble In Most Organic Substances, Processing Performance, With Plastic, Moisture, Anti-Static, Anti-Pull, Anti-Compression Performance. Widely Used In Unsaturated Polyester, Polyurethane Foam, Epoxy Resin, Phenolic Resin, Rubber, Soft Polyvinyl Chloride, Synthetic Fibers And Other Plastics And Coatings At High Temperature Pyrolysis, Can Be Used As Emulsifier And Explosion-Proof Agent
Flame retardant polyamides are mostly used in electronic and electrical engineering, civil engineering and transportation. The car has gradually become the key areas of development, because the battery shell, connectors, sensors and (currently less demand, but in the future there may be demand) fuel cell separator materials such as high on the mechanical and electrical properties and flame retardant requirements etc.. Automotive applications account for about 45% of the total market for injection polyamides, but most of them do not have flame retardancy at present.
Electronic and electrical applications account for more than 25% of the total market for injection polyamide, with the majority of which have strict flame retardant requirements (usually UL 94 V0), and are increasingly inclined to require thickness as low as 0.4mm. General industrial and engineering applications (such as circuit breakers and switches) account for nearly 10% of the total market, and these applications also have some requirements for flame retardancy.
LED lighting, photovoltaic, automotive electronics and other new applications are halogen free flame retardant polyamide development of the greatest opportunities. In particular, LED applications also require materials with UV resistance characteristics. The computer server market of Internet of things and cloud computing is also a great opportunity for development.
Polyamide 6 and 66 are semi crystalline polymers. They are well known for their good mechanical properties and good thermal stability, and are competitive in price. Of course, flame retardancy is not the inherent property of polyamide 6 and 66. Compared with engineering plastics polycarbonate and polyester, the heat release rate of polyamide is higher than that of polycarbonate under fire, but lower than that of polyester. Through the industry test standards, the required dose of fire retardant is also affected.
In many applications, are in need of glass fiber reinforced polyamide, which have a negative impact on the performance of flame retardant (like other polymers), because the glass fiber like a wick. Therefore, although unreinforced polyamides may reach UL94 V2 flame retardant grade, the same polymer reinforced by glass fiber may not qualify for rating.
From the polymer manufacturers to the entire supply chain of OEM, many trends and economic drivers have had an impact on the development of new flame retardants and flame retardant composites. These include: emphasis on the "green" performance, tinting power, laser marking, processing speed and miniaturization. Therefore, the modified plant and molder must have a thorough understanding of the processing of plastics can be used to which a flame retardant, how to use and make good use of its performance and its influence on other important performance and sustainability in the aspects of the performance, this is a very important but very difficult to define the problem.
These different additives not only produce different ways of action, but also have different effects with different dosages, which will have different effects on the properties of polymers. For example, in glass fiber reinforced PA6, the addition of magnesium hydroxide is more than 45% to achieve the V0 performance, while the brominated polystyrene / three oxidation two antimony synergistic system only needs more than 26% to achieve the same effect. Organic phosphonate with nitrogen synergist is better than polyamide 6 and 66, only 20% is needed in semi aromatic polyamide, and only 12-15% is needed in semi aromatic polyamide.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Spanish
French
Italian
Portuguese
Japanese
Korean
Arabic
Russian