News Details
Microcapsule flame retardant
2017-9-6 17:22:26
Microcapsule flame retardant
Red phosphorus contains only flame retardant phosphorus, so it is more effective than other phosphorus flame retardants, and even when the flame retardants are low. In some cases, the flame-retardant efficiency of red phosphorus is even better than that of bromine flame retardants. However, the simple red phosphorus as a flame retardant also has various defects, the red phosphorus microencapsulation to make it stable, can overcome its shortcomings to a great extent. Microcapsule flame retardant is one of the main flame retardant coagent, and it has synergistic effect on flame retardant systems such as ATH, MDH and nitrogen.
Compared with common red phosphorus, red phosphorus microcapsules have not only maintained the advantages of red phosphorus, but also have more practicability. First of all, it has high flame retardant efficiency, which has little influence on the physical and mechanical properties of the products, which can give good impact performance to the flame retardant material. It can improve the compatibility of flame retardant and resin, which can disperse the red phosphorus evenly in the resin. Secondly, the thermal stability of red phosphorus microcapsules flame retardant agent, can be used to some need molding processing of polymer products at high temperature, and low smoke, low toxicity, don't release phosphine mixed with resin, also not be shock ignition, greatly reduced powder fly explosion hazard. Once again, the cladding of red phosphorus is better than normal red phosphorus in weathering, electrical performance, application period and stability in flame retardant substrate.
Antimony oxychloride flame retardant. Sb2O3 and halogen-containing organic compounds are used in combination with excellent synergistic flame retardation, and are widely used in flame retardant synergistic effect system. In the combustion process of this system, there is the formation of chlorine oxide antimony (SbO2Cl) and antimony chloride (Sb4O5Cl2), and SbOCl and Sb4O5Cl2 are important intermediate substances that make the system flame retardant. Therefore, theoretically, SbOCl and Sb4O5Cl2 should have a strong flame retardant synergistic effect.
It is based on the above statement that the yangwei army et al. studied the effects of SbOCl and Sb4O5Cl2 in soft PVC, with the compounds containing Cl and Br. SbOCl and Sb4O5Cl2 synergistic flame retardant properties are superior to ultra-fine Sb2O3, and SbOCl has the best flame retardant performance. When SbOCl and Sb4O5Cl2 were added, the smoke content of the material was less than that of superfine Sb2O3.
Red phosphorus contains only flame retardant phosphorus, so it is more effective than other phosphorus flame retardants, and even when the flame retardants are low. In some cases, the flame-retardant efficiency of red phosphorus is even better than that of bromine flame retardants. However, the simple red phosphorus as a flame retardant also has various defects, the red phosphorus microencapsulation to make it stable, can overcome its shortcomings to a great extent. Microcapsule flame retardant is one of the main flame retardant coagent, and it has synergistic effect on flame retardant systems such as ATH, MDH and nitrogen.
Compared with common red phosphorus, red phosphorus microcapsules have not only maintained the advantages of red phosphorus, but also have more practicability. First of all, it has high flame retardant efficiency, which has little influence on the physical and mechanical properties of the products, which can give good impact performance to the flame retardant material. It can improve the compatibility of flame retardant and resin, which can disperse the red phosphorus evenly in the resin. Secondly, the thermal stability of red phosphorus microcapsules flame retardant agent, can be used to some need molding processing of polymer products at high temperature, and low smoke, low toxicity, don't release phosphine mixed with resin, also not be shock ignition, greatly reduced powder fly explosion hazard. Once again, the cladding of red phosphorus is better than normal red phosphorus in weathering, electrical performance, application period and stability in flame retardant substrate.
Antimony oxychloride flame retardant. Sb2O3 and halogen-containing organic compounds are used in combination with excellent synergistic flame retardation, and are widely used in flame retardant synergistic effect system. In the combustion process of this system, there is the formation of chlorine oxide antimony (SbO2Cl) and antimony chloride (Sb4O5Cl2), and SbOCl and Sb4O5Cl2 are important intermediate substances that make the system flame retardant. Therefore, theoretically, SbOCl and Sb4O5Cl2 should have a strong flame retardant synergistic effect.
It is based on the above statement that the yangwei army et al. studied the effects of SbOCl and Sb4O5Cl2 in soft PVC, with the compounds containing Cl and Br. SbOCl and Sb4O5Cl2 synergistic flame retardant properties are superior to ultra-fine Sb2O3, and SbOCl has the best flame retardant performance. When SbOCl and Sb4O5Cl2 were added, the smoke content of the material was less than that of superfine Sb2O3.
Tris (2-Chloroethyl) Phosphate
Product Name: Trichloroethyl Phosphate Flame Retardant Plasticizer; Tris (β-Chloroethyl) Phosphate; Bis (2-Chloroethyl) Phosphate With 2-Chloroethyl Phosphate; Tris (β-Chloroethyl) Phosphoric Acid Ester; Tris (2-Chloroethyl) Phosphate; TCEP; Trichloroethyl Phosphate
CAS RN: 115-96-8
EINECS Number: 204-118-5
Molecular Formula: C6H12Cl3O4P
Molecular Weight: 285.4898
Tris (2-Chloroethyl) Phosphate use
1. Tris (2-Chloroethyl) Phosphate Has Excellent Flame Retardancy, Excellent Resistance To Low Temperature And UV Resistance, The Steam Can Only Be Used At 225 ℃ Above The Direct Ignition Can Be Fired, But The Fire The Source Is Immediately Self-Extinguishing. This Product Is A Flame Retardant Not Only Can Improve The Material Level Of Flame Retardant Materials, But Also Improve The Flame Resistance Of Water Resistance, Acid Resistance, Cold Resistance And Antistatic Properties. Commonly Used In Flame Retardant Nitrocellulose And Acetate Fiber As The Substrate Of Paint Coatings, Unsaturated Polyester, Polyurethane, Acrylic, Phenolic Resin, Can Also Be Used For Soft PVC Plastic Flame Retardant. This Product Is Used For The Amount Of Unsaturated Polyester 10% To 20%, In The Polyurethane Rigid Foam (Flame Retardant Polyether As Raw Material) Can Be About 10% In The Soft PVC Used As Auxiliary Plastic Flame Retardant When The 5% To 10%. Flame Retardants, Uranium, Thorium, Plutonium, Technetium And Other Rare Metal Separation Solvent Or Extractant.
2. This Product Is Widely Used In Chemical Fiber Fabrics, Cellulose Acetate As A Flame Retardant, In Addition To Self-Extinguishing, But Also Improve Water Resistance, Cold Resistance And Antistatic Properties. The General Amount Of 5 To 10 Copies. This Product Is An Excellent Flame Retardant For Synthetic Materials, And Has A Good Role In The Promotion, Widely Used In Cellulose Acetate, Nitrocellulose Varnish, Ethyl Cellulose, Polyvinyl Chloride, Polyvinyl Acetate, Polyurethane, Phenolic Resin , In Addition To Self-Extinguishing Products, But Also Improve The Physical Properties Of Products, Products Feel Soft, Also Known As Oil Additives And Rare Elements Of The Extractant, And Flame Retardant Rubber Conveyor Belt Is The Main Flame Retardant Materials , The General Amount Of Added 5% To 10%.
3. Used As Additive Type Halogenated Phosphate Flame Retardant And Plasticizer. Molecules In Both Phosphorus And Chlorine, Flame Retardant Effect Is Remarkable, Not Volatile And Hydrolysis, Good Stability To Ultraviolet Light. Applicable To Phenolic Resin, Polyvinyl Chloride, Polyvinyl Acetate, Polyurethane And So On. Also Used As Nitrocellulose Coating Flame Retardant, PVC Flame Retardant Plasticizer, Metal Extractant, Gasoline Additives And Polyimide Processing Aids And So On. Can Improve Water Resistance, Weatherability, Cold Resistance, Antistatic Property. Reference Dosage 5% To 20%.
Both ATH and MDH are flame retardant fillers, which have the following characteristics: flame retardant and packing action at the same time; No halogen, for non-halogen flame retardant; The combustion without producing toxic gases and corrosive gases, and the suppression of smoke, itself is not toxic; It is not volatile, it is not affected by water; 5. Low price. The disadvantage is that the amount of added quantity is high, so the mechanical properties and processing properties of the flame retardant materials are seriously affected. (2) of ATH lower initial decomposition temperature (205 ℃), therefore, difficult to apply to the processing temperature of the high polymer. MDH is to have an advantage in this respect, the initial decomposition temperature is 320 ℃.
According to the above shortcomings, a document USES the following methods: use zinc stannate (ZS) or hydroxy stannate zinc (ZHS) coated ATH and MDH, this can significantly improve the flame retardancy and smoke suppression of ATH and MDH sex, and to achieve the same flame retardancy and smoke suppression of ATH and MDH dosage can reduce, so as to improve the flame retardant materials processing performance and mechanical performance.
Take the formula in the literature as an example (quality score) : PVC100, DOP35, stabilizer 2, flame retardant 0 ~ 50. In the case of ATH or MDH, the contribution of ZHS to the oxygen index of flame retarded PVC was greatly improved, and 20 cases of ATH with ZHS coated were equivalent to even slightly more than 50 uncoated ATH. In addition, the MDH covered by ZHS is more effective in providing the oxygen index of PVC when the dosage phase is at the same time. ATH and MDH with 50 copies of ZHS were respectively 45.8 and 41.7 respectively for soft PVC, whereas the corresponding values were 33.5 and 30.3 respectively for uncoated ATH and MDH.
In improving the fire performance index (FPI) of soft PVC, ATH is superior to MDH, especially when the dosage is high. The MDH covered by ZHS can improve the FPI value of soft PVC more significantly than the uncoated MDH. However, the contribution of ZHS to the FPI is less than the same amount of MDH. The FPI value of the material can reach 8 ~ 10 times of the non-flame retardant soft PVC as long as the dosage reaches 40 ~ 50. In order to reduce the smoke volume (SP) (the smaller the value, the lower the harmfulness of smoke), the amount of inorganic flame retardants is lower, which is 20 ~ 30, and the MDH is superior to ATH. When the dosage is high, which is 40 ~ 50, ATH is better than MDH. For MDH and ATH, ZHS can significantly improve the suppression of soft PVC.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Product Name: Trichloroethyl Phosphate Flame Retardant Plasticizer; Tris (β-Chloroethyl) Phosphate; Bis (2-Chloroethyl) Phosphate With 2-Chloroethyl Phosphate; Tris (β-Chloroethyl) Phosphoric Acid Ester; Tris (2-Chloroethyl) Phosphate; TCEP; Trichloroethyl Phosphate
CAS RN: 115-96-8
EINECS Number: 204-118-5
Molecular Formula: C6H12Cl3O4P
Molecular Weight: 285.4898
Tris (2-Chloroethyl) Phosphate use
1. Tris (2-Chloroethyl) Phosphate Has Excellent Flame Retardancy, Excellent Resistance To Low Temperature And UV Resistance, The Steam Can Only Be Used At 225 ℃ Above The Direct Ignition Can Be Fired, But The Fire The Source Is Immediately Self-Extinguishing. This Product Is A Flame Retardant Not Only Can Improve The Material Level Of Flame Retardant Materials, But Also Improve The Flame Resistance Of Water Resistance, Acid Resistance, Cold Resistance And Antistatic Properties. Commonly Used In Flame Retardant Nitrocellulose And Acetate Fiber As The Substrate Of Paint Coatings, Unsaturated Polyester, Polyurethane, Acrylic, Phenolic Resin, Can Also Be Used For Soft PVC Plastic Flame Retardant. This Product Is Used For The Amount Of Unsaturated Polyester 10% To 20%, In The Polyurethane Rigid Foam (Flame Retardant Polyether As Raw Material) Can Be About 10% In The Soft PVC Used As Auxiliary Plastic Flame Retardant When The 5% To 10%. Flame Retardants, Uranium, Thorium, Plutonium, Technetium And Other Rare Metal Separation Solvent Or Extractant.
2. This Product Is Widely Used In Chemical Fiber Fabrics, Cellulose Acetate As A Flame Retardant, In Addition To Self-Extinguishing, But Also Improve Water Resistance, Cold Resistance And Antistatic Properties. The General Amount Of 5 To 10 Copies. This Product Is An Excellent Flame Retardant For Synthetic Materials, And Has A Good Role In The Promotion, Widely Used In Cellulose Acetate, Nitrocellulose Varnish, Ethyl Cellulose, Polyvinyl Chloride, Polyvinyl Acetate, Polyurethane, Phenolic Resin , In Addition To Self-Extinguishing Products, But Also Improve The Physical Properties Of Products, Products Feel Soft, Also Known As Oil Additives And Rare Elements Of The Extractant, And Flame Retardant Rubber Conveyor Belt Is The Main Flame Retardant Materials , The General Amount Of Added 5% To 10%.
3. Used As Additive Type Halogenated Phosphate Flame Retardant And Plasticizer. Molecules In Both Phosphorus And Chlorine, Flame Retardant Effect Is Remarkable, Not Volatile And Hydrolysis, Good Stability To Ultraviolet Light. Applicable To Phenolic Resin, Polyvinyl Chloride, Polyvinyl Acetate, Polyurethane And So On. Also Used As Nitrocellulose Coating Flame Retardant, PVC Flame Retardant Plasticizer, Metal Extractant, Gasoline Additives And Polyimide Processing Aids And So On. Can Improve Water Resistance, Weatherability, Cold Resistance, Antistatic Property. Reference Dosage 5% To 20%.
Both ATH and MDH are flame retardant fillers, which have the following characteristics: flame retardant and packing action at the same time; No halogen, for non-halogen flame retardant; The combustion without producing toxic gases and corrosive gases, and the suppression of smoke, itself is not toxic; It is not volatile, it is not affected by water; 5. Low price. The disadvantage is that the amount of added quantity is high, so the mechanical properties and processing properties of the flame retardant materials are seriously affected. (2) of ATH lower initial decomposition temperature (205 ℃), therefore, difficult to apply to the processing temperature of the high polymer. MDH is to have an advantage in this respect, the initial decomposition temperature is 320 ℃.
According to the above shortcomings, a document USES the following methods: use zinc stannate (ZS) or hydroxy stannate zinc (ZHS) coated ATH and MDH, this can significantly improve the flame retardancy and smoke suppression of ATH and MDH sex, and to achieve the same flame retardancy and smoke suppression of ATH and MDH dosage can reduce, so as to improve the flame retardant materials processing performance and mechanical performance.
Take the formula in the literature as an example (quality score) : PVC100, DOP35, stabilizer 2, flame retardant 0 ~ 50. In the case of ATH or MDH, the contribution of ZHS to the oxygen index of flame retarded PVC was greatly improved, and 20 cases of ATH with ZHS coated were equivalent to even slightly more than 50 uncoated ATH. In addition, the MDH covered by ZHS is more effective in providing the oxygen index of PVC when the dosage phase is at the same time. ATH and MDH with 50 copies of ZHS were respectively 45.8 and 41.7 respectively for soft PVC, whereas the corresponding values were 33.5 and 30.3 respectively for uncoated ATH and MDH.
In improving the fire performance index (FPI) of soft PVC, ATH is superior to MDH, especially when the dosage is high. The MDH covered by ZHS can improve the FPI value of soft PVC more significantly than the uncoated MDH. However, the contribution of ZHS to the FPI is less than the same amount of MDH. The FPI value of the material can reach 8 ~ 10 times of the non-flame retardant soft PVC as long as the dosage reaches 40 ~ 50. In order to reduce the smoke volume (SP) (the smaller the value, the lower the harmfulness of smoke), the amount of inorganic flame retardants is lower, which is 20 ~ 30, and the MDH is superior to ATH. When the dosage is high, which is 40 ~ 50, ATH is better than MDH. For MDH and ATH, ZHS can significantly improve the suppression of soft PVC.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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