News Details
Unsaturated polyester flame retardant
2017-10-30 12:28:17
Unsaturated polyester flame retardant
Unsaturated polyester is a very important thermosetting resin, mainly used in glass fiber reinforced plastic products, chemical special file requirements before all of the glass fiber reinforced plastic equipment must be flame retardant performance, the injunction. The flame retardant treatment of this material usually has two methods:
Flame retardant of unsaturated polyester - reactive flame retardant - using raw materials containing flame retardant elements to synthesize unsaturated polyester. It is usually diacid, anhydride, alcohol and epoxide containing halogen. For example: brominated polyols, tetrabromo-phthalic acid (TBPA), tetrabromobisphenol A (TBBPA), tetrachlorophenol A (TCBPA), epichlorohydrin, etc. Recently, some people have studied the use of phosphorous compounds to enter unsaturated polyester through ester exchange reaction, and the synergistic effect of X P has been used to increase the flame retardant performance.
The flame retardant of unsaturated polyester is added to the flame retardant. It is best to add some synergistic flame retardants and anti-smoking agents to make the flame retardant and smoke suppression better. The flame retardants of unsaturated polyester include: ATH, microcapsule red phosphorus, zinc borate, melamine, halogenated phosphoric acid ester and their synergistic use.
PU foam is widely used in various fields of national economy. Due to its special structure, oxygen is extremely high, so its fire-retardant treatment is especially important. Then, if the modification is the best from its structure, it can be used to introduce the isocyanurate structure in the PU chain to improve the carbonization tendency of the system to reduce its flammability. However, the application of this method is limited, and it is commonly used to add or reactive flame retardants.
Additive flame retardant - usually liquid containing halogen phosphate and phosphonate. The solid flame retardants include melamine, red phosphorus, zinc borate, chlorinated paraffin, ATH, TBC, etc. No matter which type of flame retardant is required to be compatible with the components of PU, it will not produce a "burning core" phenomenon.
Reactive flame retardants - mainly liquid and solid phosphors or halogen polyols. Flame retardant epoxy resin is a large variety of thermosetting resin. It is widely used in coatings, civil buildings, electronics, adhesives and aviation. But its flammability and the continuous spontaneous combustion of the fire make their applications have to be treated with flame retardant. For its combustion characteristics, it is appropriate to choose halogen flame retardant.
Halogenated flame retardants are produced in the combustion process to produce high activity free radical capture agents, which can effectively prevent combustion in the gas phase. At present, the high molecular weight epoxy resin production of flame retardant grade in China will also be a reactive flame retardant with good prospect.
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.
Generally speaking, the preparation of flame retardant epoxy resin is composed of phosphors and brominated flame retardants. The introduction of phosphorus containing elements in the structure of epoxy resin can improve the thermal stability and flame retardancy of the resin. The general raw material has phosphate ester, tetrabromobisphenol A and so on
The preparation method of bromine flame retardant (39568-99-5) : with the reaction of AlCl3, the reaction of xylene and Br2 was obtained, and 2, 3, 5, 6-4 bromine was used to replace the dimethylbenzene, and the product was replaced by alpha-h.
1. The synthesis of tetrabromo to dimethylbenzene: the 1000kg bromide and 3kg of anhydrous AlBr3 are added to the reactor. With ice salt water cooling to 0 ~ 3 ℃, under stirring slowly add 80 kg xylene. When the reaction kettle in block or viscosity is too large, the addition of 450 kg bromine dilution, dilution process can control the temperature in 30 ~ 35 ℃. Lumps disappear after cooling to 10 ~ 15 ℃, continue to join the rest of the xylene, reaction 4 ~ 6 h under 20 ℃. You have an excess of bromine. Put the reaction liquid into the centrifuge filter to dry. With methanol recrystallization, melting point of 253 ~ 254 ℃.
2. The synthesis of hexabromo to xylene: the 80kg tetrachloride was added to the reaction caldron, and the four bromine prepared with the above preparation was added to 42kg of xylene. Under the protection of N2, the tetrachloride solution (32kg bromide dissolved in 50L tetrachloride) is slowly added to the bromine, and the recirculation 15h is heated. And then cooled to about 3 ℃. Centrifugal filtration, dry alpha, alpha, 2, 3, 5, 6-6 bromine versus xylene.
The development of brominated polystyrene is similar to that of bromide epoxy resin, and is also a new type of flame retardant. Brominated polystyrene has a high molecular weight, good thermal stability, good dispersion and mixing capacity in high polymer, easy to process and no frost. It is mainly used in thermoplastic resin such as PA, PBT and PET.
Organic phosphorus flame retardants can be used in all kinds of high polymer material, at present, the main application fields of organic phosphorus flame retardants including of two kinds of polyurethane materials and engineering plastics, with the progress of technology, more and more new phosphorus-containing flame retardants, and will be applied in the field of PVC, PP, general plastic, substituting bromide flame retardants.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Unsaturated polyester is a very important thermosetting resin, mainly used in glass fiber reinforced plastic products, chemical special file requirements before all of the glass fiber reinforced plastic equipment must be flame retardant performance, the injunction. The flame retardant treatment of this material usually has two methods:
Flame retardant of unsaturated polyester - reactive flame retardant - using raw materials containing flame retardant elements to synthesize unsaturated polyester. It is usually diacid, anhydride, alcohol and epoxide containing halogen. For example: brominated polyols, tetrabromo-phthalic acid (TBPA), tetrabromobisphenol A (TBBPA), tetrachlorophenol A (TCBPA), epichlorohydrin, etc. Recently, some people have studied the use of phosphorous compounds to enter unsaturated polyester through ester exchange reaction, and the synergistic effect of X P has been used to increase the flame retardant performance.
The flame retardant of unsaturated polyester is added to the flame retardant. It is best to add some synergistic flame retardants and anti-smoking agents to make the flame retardant and smoke suppression better. The flame retardants of unsaturated polyester include: ATH, microcapsule red phosphorus, zinc borate, melamine, halogenated phosphoric acid ester and their synergistic use.
PU foam is widely used in various fields of national economy. Due to its special structure, oxygen is extremely high, so its fire-retardant treatment is especially important. Then, if the modification is the best from its structure, it can be used to introduce the isocyanurate structure in the PU chain to improve the carbonization tendency of the system to reduce its flammability. However, the application of this method is limited, and it is commonly used to add or reactive flame retardants.
Additive flame retardant - usually liquid containing halogen phosphate and phosphonate. The solid flame retardants include melamine, red phosphorus, zinc borate, chlorinated paraffin, ATH, TBC, etc. No matter which type of flame retardant is required to be compatible with the components of PU, it will not produce a "burning core" phenomenon.
Reactive flame retardants - mainly liquid and solid phosphors or halogen polyols. Flame retardant epoxy resin is a large variety of thermosetting resin. It is widely used in coatings, civil buildings, electronics, adhesives and aviation. But its flammability and the continuous spontaneous combustion of the fire make their applications have to be treated with flame retardant. For its combustion characteristics, it is appropriate to choose halogen flame retardant.
Halogenated flame retardants are produced in the combustion process to produce high activity free radical capture agents, which can effectively prevent combustion in the gas phase. At present, the high molecular weight epoxy resin production of flame retardant grade in China will also be a reactive flame retardant with good prospect.
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.
Generally speaking, the preparation of flame retardant epoxy resin is composed of phosphors and brominated flame retardants. The introduction of phosphorus containing elements in the structure of epoxy resin can improve the thermal stability and flame retardancy of the resin. The general raw material has phosphate ester, tetrabromobisphenol A and so on
The preparation method of bromine flame retardant (39568-99-5) : with the reaction of AlCl3, the reaction of xylene and Br2 was obtained, and 2, 3, 5, 6-4 bromine was used to replace the dimethylbenzene, and the product was replaced by alpha-h.
1. The synthesis of tetrabromo to dimethylbenzene: the 1000kg bromide and 3kg of anhydrous AlBr3 are added to the reactor. With ice salt water cooling to 0 ~ 3 ℃, under stirring slowly add 80 kg xylene. When the reaction kettle in block or viscosity is too large, the addition of 450 kg bromine dilution, dilution process can control the temperature in 30 ~ 35 ℃. Lumps disappear after cooling to 10 ~ 15 ℃, continue to join the rest of the xylene, reaction 4 ~ 6 h under 20 ℃. You have an excess of bromine. Put the reaction liquid into the centrifuge filter to dry. With methanol recrystallization, melting point of 253 ~ 254 ℃.
2. The synthesis of hexabromo to xylene: the 80kg tetrachloride was added to the reaction caldron, and the four bromine prepared with the above preparation was added to 42kg of xylene. Under the protection of N2, the tetrachloride solution (32kg bromide dissolved in 50L tetrachloride) is slowly added to the bromine, and the recirculation 15h is heated. And then cooled to about 3 ℃. Centrifugal filtration, dry alpha, alpha, 2, 3, 5, 6-6 bromine versus xylene.
The development of brominated polystyrene is similar to that of bromide epoxy resin, and is also a new type of flame retardant. Brominated polystyrene has a high molecular weight, good thermal stability, good dispersion and mixing capacity in high polymer, easy to process and no frost. It is mainly used in thermoplastic resin such as PA, PBT and PET.
Organic phosphorus flame retardants can be used in all kinds of high polymer material, at present, the main application fields of organic phosphorus flame retardants including of two kinds of polyurethane materials and engineering plastics, with the progress of technology, more and more new phosphorus-containing flame retardants, and will be applied in the field of PVC, PP, general plastic, substituting bromide flame retardants.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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