News Details
Polypropylene halogen free flame retardant
2017-11-21 11:35:24
Polypropylene halogen free flame retardant
No halogen, environmentally friendly flame retardant low smoke and low toxicity has been one goal in recent years, some of the world's supply of flame retardant and application business of non halogen flame retardant showed high enthusiasm, the development of halogen-free flame retardant and flame retardant of polypropylene also invested a lot of power.
According to the analysis, the main varieties of halogen-free flame retardant polypropylene as flame retardant agent and inorganic hydrate, phosphorus flame retardants mainly include red phosphorus flame retardant.
Red phosphorus flame retardant is a flame retardant with red phosphorus as the representative, is an amorphous powder with purple or brown, organic halogen free flame retardant, has excellent thermal stability, not volatile, no corrosive gas, good flame retardant effect, good electrical insulation characteristics. In the process of using, there is no toxic risk, adding small amount, insoluble, high melting point advantages. It can be widely used in many kinds of resin, unsaturated resin, hot melt adhesive, rubber, coating and other products flame retardant.
Polypropylene halogen free flame retardant agent may red phosphorus flame retardant effect, the best flame retardant efficiency is the highest, because it is full of red phosphorus phosphorus theory, phosphorus content of up to 100%, although the coated phosphorus content decreased, but still far higher than other phosphorus compounds, and the coated red phosphorus absorption after more convenient moisture and heat processing stability and storage and transportation, so the red phosphorus has become the phosphorus series flame retardant thermoplastic material is the most widely used, but its weakness first must be red or black in color matching, this greatly limits its application in many materials.
In addition, although the coated red phosphorus, but because of the limitation of technology and raw materials of all sorts of reasons, in the process of using or may inevitably lead to "fire", more serious is the processing characteristics of red phosphorus is relatively poor, and the compatibility of the resin is not too good, mechanical properties of materials processing is poor, coupled with in the production process of odor taste makes it difficult to be popularized in high-grade materials.
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
Most of the organic flame retardants are toxic, corrosive, smoke and other shortcomings, and the price is more expensive; inorganic flame retardants can just make up for these defects. Generally inorganic flame retardants often have two functions: flame retardant and smoke abatement. Therefore, inorganic flame retardants have been developed rapidly in recent years. In addition to the aforementioned Sb, P inorganic compounds, there are inorganic compounds such as AL, Mg, B.Mo, Zn and so on. These inorganic flame retardants are mostly endothermic dehydration, water vapor cooling and dilution of flammable gas, thereby inhibiting combustion.
Aluminum compounds: the main species is AL (OH) 3, when the external temperature reached 190 degrees, AL (OH) 3 began to dehydrate. But because of its low water loss temperature, it is not suitable for polymers. Because of its rich source, low price, three functions, such as flame retardant, smoke suppressant and filler, it is still a promising flame retardant.
Boron compounds: boron compounds are a variety of flame retardants, such as zinc borate, ammonium borate, boric acid, borax, barium borate, etc.. In addition to AL (OH) 3, the flame retardant mechanism has the same "membrane effect" as that of phosphorus compounds, and produces a layer of solid melt covering the polymer surface, resulting in flame retardant effect. Zinc borate and Sb2O3 are used in equal amount, and the flame retardant effect can be more than that of any one of them, and the amount of cigarette smoke is low and the price is low. The price of zinc borate is only about 1/3 of Sb2O3, which is an ideal Sb2O3 substitute.
Magnesium compounds: magnesium compound flame retardant is mainly Mg (OH) 2, is a newly developed flame retardant. Its flame retardant mechanism is the same as that of AL (OH) 3, but its water loss temperature is between 300 and 350 degrees centigrade, so it is more suitable for polyolefin. Mg (OH) 3 also has the dual functions of flame retardant and smoke elimination. Mg (OH) 2 treated with surface treatment agent has better flame retardant effect. For example, the addition of 47.6% stearic acid treated Mg (OH) 2 and 1.1%NaCl - KCl solid melt in polypropylene can reach the UL - 94 - VO standard.
These inorganic flame retardants have a fatal disadvantage: only when the amount of the additive is large (about 40 - 60%) can the flame retardant be achieved, and so much amount will inevitably lead to the obvious decline of the mechanical properties of the polymer. Therefore, inorganic flame retardants are generally used as additives for organic flame retardants, rarely used alone.
Considering the use of flame retardant plastics for people's lives and property, the relationship between fire, we should compare the flame retardant plastic and non flame retardant plastic. The work was initiated by the (flame retardant chemicals Association), which was presided over by the National Institute of standards and Technology (NIS).
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
No halogen, environmentally friendly flame retardant low smoke and low toxicity has been one goal in recent years, some of the world's supply of flame retardant and application business of non halogen flame retardant showed high enthusiasm, the development of halogen-free flame retardant and flame retardant of polypropylene also invested a lot of power.
According to the analysis, the main varieties of halogen-free flame retardant polypropylene as flame retardant agent and inorganic hydrate, phosphorus flame retardants mainly include red phosphorus flame retardant.
Red phosphorus flame retardant is a flame retardant with red phosphorus as the representative, is an amorphous powder with purple or brown, organic halogen free flame retardant, has excellent thermal stability, not volatile, no corrosive gas, good flame retardant effect, good electrical insulation characteristics. In the process of using, there is no toxic risk, adding small amount, insoluble, high melting point advantages. It can be widely used in many kinds of resin, unsaturated resin, hot melt adhesive, rubber, coating and other products flame retardant.
Polypropylene halogen free flame retardant agent may red phosphorus flame retardant effect, the best flame retardant efficiency is the highest, because it is full of red phosphorus phosphorus theory, phosphorus content of up to 100%, although the coated phosphorus content decreased, but still far higher than other phosphorus compounds, and the coated red phosphorus absorption after more convenient moisture and heat processing stability and storage and transportation, so the red phosphorus has become the phosphorus series flame retardant thermoplastic material is the most widely used, but its weakness first must be red or black in color matching, this greatly limits its application in many materials.
In addition, although the coated red phosphorus, but because of the limitation of technology and raw materials of all sorts of reasons, in the process of using or may inevitably lead to "fire", more serious is the processing characteristics of red phosphorus is relatively poor, and the compatibility of the resin is not too good, mechanical properties of materials processing is poor, coupled with in the production process of odor taste makes it difficult to be popularized in high-grade materials.
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
Most of the organic flame retardants are toxic, corrosive, smoke and other shortcomings, and the price is more expensive; inorganic flame retardants can just make up for these defects. Generally inorganic flame retardants often have two functions: flame retardant and smoke abatement. Therefore, inorganic flame retardants have been developed rapidly in recent years. In addition to the aforementioned Sb, P inorganic compounds, there are inorganic compounds such as AL, Mg, B.Mo, Zn and so on. These inorganic flame retardants are mostly endothermic dehydration, water vapor cooling and dilution of flammable gas, thereby inhibiting combustion.
Aluminum compounds: the main species is AL (OH) 3, when the external temperature reached 190 degrees, AL (OH) 3 began to dehydrate. But because of its low water loss temperature, it is not suitable for polymers. Because of its rich source, low price, three functions, such as flame retardant, smoke suppressant and filler, it is still a promising flame retardant.
Boron compounds: boron compounds are a variety of flame retardants, such as zinc borate, ammonium borate, boric acid, borax, barium borate, etc.. In addition to AL (OH) 3, the flame retardant mechanism has the same "membrane effect" as that of phosphorus compounds, and produces a layer of solid melt covering the polymer surface, resulting in flame retardant effect. Zinc borate and Sb2O3 are used in equal amount, and the flame retardant effect can be more than that of any one of them, and the amount of cigarette smoke is low and the price is low. The price of zinc borate is only about 1/3 of Sb2O3, which is an ideal Sb2O3 substitute.
Magnesium compounds: magnesium compound flame retardant is mainly Mg (OH) 2, is a newly developed flame retardant. Its flame retardant mechanism is the same as that of AL (OH) 3, but its water loss temperature is between 300 and 350 degrees centigrade, so it is more suitable for polyolefin. Mg (OH) 3 also has the dual functions of flame retardant and smoke elimination. Mg (OH) 2 treated with surface treatment agent has better flame retardant effect. For example, the addition of 47.6% stearic acid treated Mg (OH) 2 and 1.1%NaCl - KCl solid melt in polypropylene can reach the UL - 94 - VO standard.
These inorganic flame retardants have a fatal disadvantage: only when the amount of the additive is large (about 40 - 60%) can the flame retardant be achieved, and so much amount will inevitably lead to the obvious decline of the mechanical properties of the polymer. Therefore, inorganic flame retardants are generally used as additives for organic flame retardants, rarely used alone.
Considering the use of flame retardant plastics for people's lives and property, the relationship between fire, we should compare the flame retardant plastic and non flame retardant plastic. The work was initiated by the (flame retardant chemicals Association), which was presided over by the National Institute of standards and Technology (NIS).
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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