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Flame retardant plasticizer for PVC
2017-11-1 11:59:00
Flame retardant plasticizer for PVC
Polyvinyl chloride is a polymer material that uses a chlorine atom to replace one of the hydrogen atoms in polyethylene. A thermoplastic resin polymerized from vinyl chloride in the presence of an initiator, a homopolymer of vinyl chloride.
PVC is one of the largest output of plastic products in the world, the price is cheap, widely used, PVC resin is white or light yellow powder. Polyvinyl chloride (PVC), referred to as PVC, is a thermoplastic resin polymerized from vinyl chloride under the action of initiator. Homopolymer of vinyl chloride. Vinyl chloride homopolymer and vinyl chloride copolymer are collectively referred to as vinyl chloride resin. PVC is amorphous white powder with less degree of branching.
Thermal decomposition mechanism and combustion characteristics of PVC. The thermal decomposition of pure PVC in nitrogen has 2 stages. The first stage is the removal of HCl, which generally releases HCl at 120 degrees Celsius, but decomposes at 230-340 degrees centigrade. At this stage, the quality of HCl removal accounts for about 64% of the total mass of PVC. The second stage is the decomposition of conjugated polyene chains formed after HCl removal, which accounts for about 23% of the total mass of PVC. PVC thermal decomposition will eventually form a small amount of carbon slag, which has a certain char formation capacity.
The limit oxygen index (LOI) of PVC was up to 50%. However, the addition of plasticizers in the processing of PVC reduces its flame retardancy. Therefore, the flame retardant treatment of PVC must be carried out. Compared with the flame retardancy of PVC, the toxicity of PVC during combustion is more concerned. PVC can produce HCl, CO, and a small amount of phosgene and some toxic organic compounds (such as benzene, toluene, etc.). HCl and phosgene can be adsorbed on soot particles in soot, and spread with the development of fire.
For PVC flame retardant, PVC flame retardant plasticizer should be considered first, and PVC flame retardant plasticizer which can not only reduce the flame retardancy but also increase the plasticizing effect should be adopted.
The commonly used phosphate plasticizers are trimethyl phosphate and phosphoric acid three phenyl ester. PVC products with high mechanical properties have good flame retardancy, water resistance and durability. However, its ortho isomer is toxic and its use is limited. Phosphoric acid three phenyl ester has small volatility, good flame retardancy, but easy to crystallize from PVC, the dosage can not be too much.
The molecular weight of PVC in industrial production in 50 thousand ~ 120 thousand range, with larger polydispersity of molecular weight increases with the decrease of the polymerization temperature; no fixed melting point, 80 ~ 8 poly 5 C to 130 C to soften the viscoelastic state, 160 to 180 DEG C began to change into the viscous flow; mechanical the good performance of tensile strength of about 60MPa, the impact strength of 5 ~ 10kJ/m2; have excellent dielectric properties.
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP)
Product Name: Tris (1,3-Dichloro-2-Propyl) Phosphate; Tris (1,3-Dichloroisopropyl) Phosphate; Tris (1,3-Dichloroisopropyl) Phosphate; (1,3-Dichloro-2-Propyl) Phosphate; Tris (1,3-Dichloroisopropyl) Phosphate; Tris (1,3-Dichloroisopropyl) Tris (1,3-Dichloro-2-Propyl) Phosphate (TDCPP); TCPP Tris (2-Chloropropyl) Phosphate, Flame Retardant TDCPP
1,3-Dichloro-2-Propanolphosphate (3: 1); 1,3-Dichloro-2-Propanolophosphate (3: 1) 2-Propanol, 1,3-Dichloro, Phosphate (3: 1); 2-Propanol, 1,3-Dichloro-, Phosphate (3: 1) ); Crp (Fireproofingagent); Emulsion 212
CAS No.:13674-87-8
EINECS Number: 237-159-2
Molecular Formula: C9H15Cl6O4P
Molecular Weight: 430.9
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.
But the stability of light and heat, at 100 DEG C or after long time exposure to sunlight, will decompose and produce hydrogen chloride, and further Autocatalytic Decomposition, causing discoloration, physical and mechanical properties also decreased rapidly, in the practical application must be added in order to improve the stability of heat and light stabilizer of the. PVC is very hard, the solubility is very poor, can only dissolve in cyclohexanone, two chlorine ethane and tetrahydrofuran and a solvent, the organic and inorganic acid, alkali, salt stability, chemical stability decreases with increasing working temperature.
PVC dissolved in acetone or acetone mixed solvent of carbon disulfide benzene, used in dry or wet spinning and fiber, called polyvinyl chloride. It has the advantages of flame retardant, acid and alkali resistance, anti microbial, abrasion resistance and good warmth retention and elasticity.
Poly (vinyl chloride) (PVC) is one of the five general purpose resins, and its yield is only inferior to polyethylene (PE). PVC has excellent flame retardant, insulation, wear resistance and other chemical properties, it has been widely used in building materials, light industry, agriculture and other fields.
In the specific application, in accordance with the main characters of PVC products with hard and soft ware products, the products are mainly used in hard pipes, profiles and other building materials, and products are mainly used in soft film, cable, leather etc.. PVC product market has a very close relationship with the real estate market.
In the real estate construction, PVC materials are widely used, of which the profiles, doors and windows, plastic pipes and other hard products are the most common. Taking the North American market as an example, the amount of PVC used in building housing accounts for more than 75% of the total, while the domestic PVC used in pipes, profiles, doors and windows and other fields account for about 65% of the overall demand.
Polyvinyl chloride is the most characteristic flame retardant, so it is widely used in fire protection applications. But polyvinyl chloride releases hydrogen chloride and other toxic gases, such as dioxin, during combustion. The combustion of PVC is divided into two steps. The hydrogen chloride gas and the diene containing double bond were first decomposed at 240 -340 C, and then carbon combustion occurred at 400-470 C.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Polyvinyl chloride is a polymer material that uses a chlorine atom to replace one of the hydrogen atoms in polyethylene. A thermoplastic resin polymerized from vinyl chloride in the presence of an initiator, a homopolymer of vinyl chloride.
PVC is one of the largest output of plastic products in the world, the price is cheap, widely used, PVC resin is white or light yellow powder. Polyvinyl chloride (PVC), referred to as PVC, is a thermoplastic resin polymerized from vinyl chloride under the action of initiator. Homopolymer of vinyl chloride. Vinyl chloride homopolymer and vinyl chloride copolymer are collectively referred to as vinyl chloride resin. PVC is amorphous white powder with less degree of branching.
Thermal decomposition mechanism and combustion characteristics of PVC. The thermal decomposition of pure PVC in nitrogen has 2 stages. The first stage is the removal of HCl, which generally releases HCl at 120 degrees Celsius, but decomposes at 230-340 degrees centigrade. At this stage, the quality of HCl removal accounts for about 64% of the total mass of PVC. The second stage is the decomposition of conjugated polyene chains formed after HCl removal, which accounts for about 23% of the total mass of PVC. PVC thermal decomposition will eventually form a small amount of carbon slag, which has a certain char formation capacity.
The limit oxygen index (LOI) of PVC was up to 50%. However, the addition of plasticizers in the processing of PVC reduces its flame retardancy. Therefore, the flame retardant treatment of PVC must be carried out. Compared with the flame retardancy of PVC, the toxicity of PVC during combustion is more concerned. PVC can produce HCl, CO, and a small amount of phosgene and some toxic organic compounds (such as benzene, toluene, etc.). HCl and phosgene can be adsorbed on soot particles in soot, and spread with the development of fire.
For PVC flame retardant, PVC flame retardant plasticizer should be considered first, and PVC flame retardant plasticizer which can not only reduce the flame retardancy but also increase the plasticizing effect should be adopted.
The commonly used phosphate plasticizers are trimethyl phosphate and phosphoric acid three phenyl ester. PVC products with high mechanical properties have good flame retardancy, water resistance and durability. However, its ortho isomer is toxic and its use is limited. Phosphoric acid three phenyl ester has small volatility, good flame retardancy, but easy to crystallize from PVC, the dosage can not be too much.
The molecular weight of PVC in industrial production in 50 thousand ~ 120 thousand range, with larger polydispersity of molecular weight increases with the decrease of the polymerization temperature; no fixed melting point, 80 ~ 8 poly 5 C to 130 C to soften the viscoelastic state, 160 to 180 DEG C began to change into the viscous flow; mechanical the good performance of tensile strength of about 60MPa, the impact strength of 5 ~ 10kJ/m2; have excellent dielectric properties.
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP)
Product Name: Tris (1,3-Dichloro-2-Propyl) Phosphate; Tris (1,3-Dichloroisopropyl) Phosphate; Tris (1,3-Dichloroisopropyl) Phosphate; (1,3-Dichloro-2-Propyl) Phosphate; Tris (1,3-Dichloroisopropyl) Phosphate; Tris (1,3-Dichloroisopropyl) Tris (1,3-Dichloro-2-Propyl) Phosphate (TDCPP); TCPP Tris (2-Chloropropyl) Phosphate, Flame Retardant TDCPP
1,3-Dichloro-2-Propanolphosphate (3: 1); 1,3-Dichloro-2-Propanolophosphate (3: 1) 2-Propanol, 1,3-Dichloro, Phosphate (3: 1); 2-Propanol, 1,3-Dichloro-, Phosphate (3: 1) ); Crp (Fireproofingagent); Emulsion 212
CAS No.:13674-87-8
EINECS Number: 237-159-2
Molecular Formula: C9H15Cl6O4P
Molecular Weight: 430.9
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.
But the stability of light and heat, at 100 DEG C or after long time exposure to sunlight, will decompose and produce hydrogen chloride, and further Autocatalytic Decomposition, causing discoloration, physical and mechanical properties also decreased rapidly, in the practical application must be added in order to improve the stability of heat and light stabilizer of the. PVC is very hard, the solubility is very poor, can only dissolve in cyclohexanone, two chlorine ethane and tetrahydrofuran and a solvent, the organic and inorganic acid, alkali, salt stability, chemical stability decreases with increasing working temperature.
PVC dissolved in acetone or acetone mixed solvent of carbon disulfide benzene, used in dry or wet spinning and fiber, called polyvinyl chloride. It has the advantages of flame retardant, acid and alkali resistance, anti microbial, abrasion resistance and good warmth retention and elasticity.
Poly (vinyl chloride) (PVC) is one of the five general purpose resins, and its yield is only inferior to polyethylene (PE). PVC has excellent flame retardant, insulation, wear resistance and other chemical properties, it has been widely used in building materials, light industry, agriculture and other fields.
In the specific application, in accordance with the main characters of PVC products with hard and soft ware products, the products are mainly used in hard pipes, profiles and other building materials, and products are mainly used in soft film, cable, leather etc.. PVC product market has a very close relationship with the real estate market.
In the real estate construction, PVC materials are widely used, of which the profiles, doors and windows, plastic pipes and other hard products are the most common. Taking the North American market as an example, the amount of PVC used in building housing accounts for more than 75% of the total, while the domestic PVC used in pipes, profiles, doors and windows and other fields account for about 65% of the overall demand.
Polyvinyl chloride is the most characteristic flame retardant, so it is widely used in fire protection applications. But polyvinyl chloride releases hydrogen chloride and other toxic gases, such as dioxin, during combustion. The combustion of PVC is divided into two steps. The hydrogen chloride gas and the diene containing double bond were first decomposed at 240 -340 C, and then carbon combustion occurred at 400-470 C.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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