News Details
Soft PVC resin flame retardant
2017-11-11 12:15:38
Soft PVC resin flame retardant
Sb2O3 and halogen containing organic compounds have excellent synergistic flame retardancy, which is a widely used flame retardant synergistic effect system at present. The combustion process of this system in chlorine antimony oxide (SbO2Cl) chloride and antimony oxide (Sb4O5Cl2) generation, SbOCl and Sb4O5Cl2 are important intermediates of the system flame retardant effect. Therefore, it is theoretically speculated that SbOCl and Sb4O5Cl2 should have strong synergistic effect of flame retardancy.
Yang Weijun et al. Studied the effects of soft PVC resin flame retardants SbOCl and Sb4O5Cl2 in soft PVC and in combination with compounds containing Cl and Br. The synergistic flame retardancy of soft PVC resin flame retardant SbOCl and Sb4O5Cl2 is better than that of ultra-fine Sb2O3, and the flame retardancy of SbOCl is the best.
When adding soft PVC resin flame retardant SbOCl and Sb4O5Cl2, the smoke amount of the material is less than that of superfine Sb2O3 resin.
ATH and MDH are flame retardant filler, they all have the following characteristics: 1 and flame retardant and filler; the non halogen, non halogen flame retardant; the combustion does not produce toxic gases and corrosive gases, and smoke suppression, itself is non-toxic; the volatile, not by the influence of water; cheap. The disadvantage is that the required amount is high, so seriously affect the mechanical properties and processing properties of flame retardant materials; the initial decomposition temperature of ATH is lower (about 205 degrees), it is difficult to apply to the processing of high temperature polymer. MDH has an advantage in this respect, and the initial decomposition temperature can reach 320.
In view of the above shortcomings, the literature in the following ways: treatment with zinc stannate (ZS) or zinc Hydroxystannate (ZHS) coated with ATH and MDH, so ATH and MDH can significantly improve the flame retardance and smoke suppression, and to achieve the same flame retardant and smoke suppression of ATH and MDH dosage can be reduced, so as to improve the processing properties and mechanical properties of flame retardant materials.
Taking the formula in the literature as an example (mass fraction): PVC100, DOP35, stabilizer 2, flame retardant 0~50 parts. Whether it is ATH or MDH, with ZHS coated, for they are the oxygen index of flame retardant PVC contribution is greatly improved, 20 by ZHS coated ATH is equivalent or slightly more than 50 copies of uncoated ATH. In addition, the ZHS coated ATH is more effective than the ZHS coated MDH in providing the oxygen index of PVC when the amount is the same. With 50 copies by ZHS coated ATH and MDH on the oxygen index of soft PVC were 45.8 and 41.7, and as for coating ATH and MDH, the corresponding values were only 33.5 and 30.3.
Tris(2-chloroisopropyl)Phosphate(TCPP)
Packing: NW 250KG / galvanized iron (a small cabinet to play prop 20 tons), 1000KG/IB barrels (a small cabinet loaded 18 tons), or 23 tons ISOTANK.
The product output: 100 tons / month
Shipping Port: China Shang Hai
Price offer is valid: 15 days
Jincang time: 15 days (commodity inspection)
Export rights: the right to import and export company.
The product is used for the soft / hard polyurethane foam, with thermal and hydrolytic stability good, especially suitable for ASTME84 (Level 11) foam, with low viscosity unsaturated polyester resin in low temperature application and phenolic plastics at. This product is also used to grab the foam sealant and sheet production. For polyvinyl chloride, polystyrene, phenolic resin, acrylic resin and rubber, coating, flame retardant, also used for soft and hard polyurethane foam, epoxy resin, polystyrene, cellulose acetate, ethyl cellulose tree and phenolic plastics, polyvinyl acetate and gun type foam sealant production. Particularly recommended for rigid polyurethane foam has excellent thermal and hydrolytic stability is particularly suitable for ASTM84 (II), compound for polyurethane foam and unsaturated resin and phenolic plastics.
In improving the fire performance index (FPI) of soft PVC, ATH is better than MDH, especially when the dosage is high. ZHS coated MDH can increase the FPI value of soft PVC more significantly than uncoated MDH; however, the contribution of ZHS coated with ATH to FPI is less than that of MDH with the same amount. No matter using ATH or ZHS coated ATH flame retardant soft PVC, as long as the dosage reached 40~50 copies, the FPI value of the material can reach 8~10 times of the non flame soft PVC. To reduce the amount of smoke and flame retardant soft PVC (SP) (the smaller the value, the combustion smoke hazard is low), inorganic flame retardant with low dosage, which ranged from 20 to 30 phr, MDH is better than ATH; when the amount is higher, which is 40 ~ 50 phr, ATH is better than that of MDH. For MDH, ATH, regardless of the dosage, ZHS can significantly improve the smoke suppression of soft PVC.
However, in general, the amount of flame retarded soft PVC with ZHS coated ATH or MDH is 20~50, and when the content of flame retardant is the same, the SP value of the material is similar. Under the optimum conditions, the smoke yield of flame retardant soft PVC decreased by 90% compared with that without flame retardant. Another point is that: in the same amount of cases, using ZHS coated MDH mixture system for flame retardant effect is better than ZHS and MDH, which may be due to the ZHS coated MDH was well dispersed in the soft PVC's sake.
Because only the red phosphorus containing flame retardant phosphorus, so other than phosphorus flame retardant efficiency is high, and even in very low dosage of flame retardant. In some cases, red phosphorus flame retardant efficiency than brominated flame retardant is better. However, the pure red phosphorus as flame retardant has many defects, the red phosphorus microencapsulation to make it stable, can overcome the shortcomings in the very great degree. Microcapsule flame retardant is one of the main flame retardant synergistic agents. It has synergistic effect on the flame retardant systems such as ATH, MDH and nitrogen.
Red phosphorus microcapsule flame retardant compared with ordinary red phosphorus, not only maintains the advantages of the original red phosphorus, and more practical. First of all, it has high flame retardant efficiency, little impact on the physical and mechanical properties of the product, and can give better impact properties of the flame retardant material. To improve compatibility with flame retardant resin, can be uniformly dispersed in the resin of red phosphorus.
Secondly, the thermal stability of red phosphorus microcapsule flame retardant, can be used for some need high temperature processing of polymer products, and low smoke, low toxicity, mixed with resins without elimination of phosphine, impact is not easy to be ignited, powder fly explosion hazard is greatly reduced. Again, the coated red phosphorus in weather resistance, electrical properties, and flame retardant substrate in the applicable period of stability is better than that of ordinary red phosphorus.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Sb2O3 and halogen containing organic compounds have excellent synergistic flame retardancy, which is a widely used flame retardant synergistic effect system at present. The combustion process of this system in chlorine antimony oxide (SbO2Cl) chloride and antimony oxide (Sb4O5Cl2) generation, SbOCl and Sb4O5Cl2 are important intermediates of the system flame retardant effect. Therefore, it is theoretically speculated that SbOCl and Sb4O5Cl2 should have strong synergistic effect of flame retardancy.
Yang Weijun et al. Studied the effects of soft PVC resin flame retardants SbOCl and Sb4O5Cl2 in soft PVC and in combination with compounds containing Cl and Br. The synergistic flame retardancy of soft PVC resin flame retardant SbOCl and Sb4O5Cl2 is better than that of ultra-fine Sb2O3, and the flame retardancy of SbOCl is the best.
When adding soft PVC resin flame retardant SbOCl and Sb4O5Cl2, the smoke amount of the material is less than that of superfine Sb2O3 resin.
ATH and MDH are flame retardant filler, they all have the following characteristics: 1 and flame retardant and filler; the non halogen, non halogen flame retardant; the combustion does not produce toxic gases and corrosive gases, and smoke suppression, itself is non-toxic; the volatile, not by the influence of water; cheap. The disadvantage is that the required amount is high, so seriously affect the mechanical properties and processing properties of flame retardant materials; the initial decomposition temperature of ATH is lower (about 205 degrees), it is difficult to apply to the processing of high temperature polymer. MDH has an advantage in this respect, and the initial decomposition temperature can reach 320.
In view of the above shortcomings, the literature in the following ways: treatment with zinc stannate (ZS) or zinc Hydroxystannate (ZHS) coated with ATH and MDH, so ATH and MDH can significantly improve the flame retardance and smoke suppression, and to achieve the same flame retardant and smoke suppression of ATH and MDH dosage can be reduced, so as to improve the processing properties and mechanical properties of flame retardant materials.
Taking the formula in the literature as an example (mass fraction): PVC100, DOP35, stabilizer 2, flame retardant 0~50 parts. Whether it is ATH or MDH, with ZHS coated, for they are the oxygen index of flame retardant PVC contribution is greatly improved, 20 by ZHS coated ATH is equivalent or slightly more than 50 copies of uncoated ATH. In addition, the ZHS coated ATH is more effective than the ZHS coated MDH in providing the oxygen index of PVC when the amount is the same. With 50 copies by ZHS coated ATH and MDH on the oxygen index of soft PVC were 45.8 and 41.7, and as for coating ATH and MDH, the corresponding values were only 33.5 and 30.3.
Tris(2-chloroisopropyl)Phosphate(TCPP)
Packing: NW 250KG / galvanized iron (a small cabinet to play prop 20 tons), 1000KG/IB barrels (a small cabinet loaded 18 tons), or 23 tons ISOTANK.
The product output: 100 tons / month
Shipping Port: China Shang Hai
Price offer is valid: 15 days
Jincang time: 15 days (commodity inspection)
Export rights: the right to import and export company.
The product is used for the soft / hard polyurethane foam, with thermal and hydrolytic stability good, especially suitable for ASTME84 (Level 11) foam, with low viscosity unsaturated polyester resin in low temperature application and phenolic plastics at. This product is also used to grab the foam sealant and sheet production. For polyvinyl chloride, polystyrene, phenolic resin, acrylic resin and rubber, coating, flame retardant, also used for soft and hard polyurethane foam, epoxy resin, polystyrene, cellulose acetate, ethyl cellulose tree and phenolic plastics, polyvinyl acetate and gun type foam sealant production. Particularly recommended for rigid polyurethane foam has excellent thermal and hydrolytic stability is particularly suitable for ASTM84 (II), compound for polyurethane foam and unsaturated resin and phenolic plastics.
In improving the fire performance index (FPI) of soft PVC, ATH is better than MDH, especially when the dosage is high. ZHS coated MDH can increase the FPI value of soft PVC more significantly than uncoated MDH; however, the contribution of ZHS coated with ATH to FPI is less than that of MDH with the same amount. No matter using ATH or ZHS coated ATH flame retardant soft PVC, as long as the dosage reached 40~50 copies, the FPI value of the material can reach 8~10 times of the non flame soft PVC. To reduce the amount of smoke and flame retardant soft PVC (SP) (the smaller the value, the combustion smoke hazard is low), inorganic flame retardant with low dosage, which ranged from 20 to 30 phr, MDH is better than ATH; when the amount is higher, which is 40 ~ 50 phr, ATH is better than that of MDH. For MDH, ATH, regardless of the dosage, ZHS can significantly improve the smoke suppression of soft PVC.
However, in general, the amount of flame retarded soft PVC with ZHS coated ATH or MDH is 20~50, and when the content of flame retardant is the same, the SP value of the material is similar. Under the optimum conditions, the smoke yield of flame retardant soft PVC decreased by 90% compared with that without flame retardant. Another point is that: in the same amount of cases, using ZHS coated MDH mixture system for flame retardant effect is better than ZHS and MDH, which may be due to the ZHS coated MDH was well dispersed in the soft PVC's sake.
Because only the red phosphorus containing flame retardant phosphorus, so other than phosphorus flame retardant efficiency is high, and even in very low dosage of flame retardant. In some cases, red phosphorus flame retardant efficiency than brominated flame retardant is better. However, the pure red phosphorus as flame retardant has many defects, the red phosphorus microencapsulation to make it stable, can overcome the shortcomings in the very great degree. Microcapsule flame retardant is one of the main flame retardant synergistic agents. It has synergistic effect on the flame retardant systems such as ATH, MDH and nitrogen.
Red phosphorus microcapsule flame retardant compared with ordinary red phosphorus, not only maintains the advantages of the original red phosphorus, and more practical. First of all, it has high flame retardant efficiency, little impact on the physical and mechanical properties of the product, and can give better impact properties of the flame retardant material. To improve compatibility with flame retardant resin, can be uniformly dispersed in the resin of red phosphorus.
Secondly, the thermal stability of red phosphorus microcapsule flame retardant, can be used for some need high temperature processing of polymer products, and low smoke, low toxicity, mixed with resins without elimination of phosphine, impact is not easy to be ignited, powder fly explosion hazard is greatly reduced. Again, the coated red phosphorus in weather resistance, electrical properties, and flame retardant substrate in the applicable period of stability is better than that of ordinary red phosphorus.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Spanish
French
Italian
Portuguese
Japanese
Korean
Arabic
Russian