News Details
Epoxy resin superfine flame retardant
2017-11-9 12:42:07
Epoxy resin superfine flame retardant
Nanometer flame retardant is an important branch of nanophase materials, from 1976 the first published article about nano flame retardant epoxy resin patent, superfine fire retardant is booming, especially since the beginning of 1990s, ultrafine flame retardant epoxy resin has become an important research hotspot in the field of flame retardant.
Flame retardant epoxy resin superfine is a flame retardant technology emerging, nanoparticles due to high activity, prone to physical or chemical action with some epoxy groups, and then improve the mechanical properties of resin composite materials 2223, 24 thermal properties and flame retardant properties. At present, the nano materials used in polymer flame retardant are silicate materials, carbon nanotubes, carbon 6025, graphene oxide and so on.
The flame retardancy of epoxy resin / graphene oxide composites was studied by Zhou, Wang and other 26. The results show that the addition of 1% graphene oxide can reduce the peak value of heat release rate (PHRR) from 900kw/m2 to 800kw/m2, and broaden the heat release rate curve. The ignition time rises from 66S to 76s, which is attributed to the formation of CO2 during combustion and the decrease of CO production.
Han Huan 15 to three phosphorus oxychloride, resorcinol or benzene two amine or bisphenol A as the main raw material of three hyperbranched flame retardant was synthesized (3- hydroxy phenyl) phosphate (HBPE), (3- amino phenyl) phosphate amide (ABPA) and [4- (4-hydroxylphenyl isopropyl) phenyl] phosphate (HBPPE).
Experiments show that three kinds of flame retardant of hyperbranched epoxy resin has good flame resistance, the ABPA flame retardant efficiency and flame retardant properties of the best, when the adding amount was 23.8wt%, the limiting oxygen index of flame retardant epoxy resin reached 30%, flame retardant performance for UL94 V-0. Infrared spectrum analysis showed that hyperbranched phosphorus flame retardant did not affect the curing reaction of epoxy resin with two amine of benzene.
Yang Mingshan et al., three, was used to prepare six phenoxy ring flame retardant, and halogen free flame retardant epoxy resin molding compound (EMC) for large scale integrated circuit was prepared by this method. The study found: three flame retardant phosphazene ring six phenoxy has good effect on flame retardant epoxy resin, the preparation of EMC can reach UL94 class V-0 flame retardant performance, its oxygen index reached 33.1%, the flame retardant performance is much better than the traditional brominated flame retardant system, can be used for the preparation of large scale integrated circuit package with EMC.
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.
The characteristics of epoxy resin prepared by the method of structure flame retardant epoxy resin is flame retardant elements contained in the molecular structure is not easy to move, easy leakage, flame retardance, good dimensional stability, excellent and permanent thermal stability, oxidation stability, hydrolytic stability and high char yield.
The structure of flame retardant epoxy resin mainly through the following two aspects: one is the preparation for curing agent containing flame retardant elements to curing epoxy resin; two is through the epoxy functional group containing flame retardant compound and resin react into flame retardant elements. In essence, both of the two elements introduce flame retardant elements by reacting with epoxy groups.
The interrupt mechanism of flame retardant heat exchange refers to will take most heat generated during the combustion of flame retardant materials, lead materials can not maintain the temperature of thermal decomposition, and therefore can not continue to produce combustible gas, the combustion flame retardant effect of self extinguishing.
For example, when the flame retardant materials by strong heat and combustion can melt easily melt dripping molten material, most of the heat is taken away, reducing the feedback to the material body heat, resulting in combustion delay, finally may suspend the combustion process. So, flammable materials are usually very low in flammability. But the disadvantage is that the drop of hot droplets may ignite other substances, increase the risk of fire.
If you can not use ordinary equipment processing thick curtain, carpet and other commodities, can be done in the last process manual spray flame retardant finishing. For the bulk of the surface patterns, tufted pile, pilling fabric, if using padding method will make the pattern surface villi damage, so generally used for spray method.
The flame retardant is dissolved by organic compounds and then flame retardant finishing is carried out. It can shorten the finishing time, and the toxicity and combustibility of the solvent must be paid attention to during the operation.
Nitrogen based flame retardants and traditional flame retardants have the advantages of low tightness, less toxicity, less corrosive to equipment, good flame retardancy, and synergistic use with other flame retardants. Nitrogen based flame retardants belong to the mechanism of gaseous phase, which can be decomposed into CO2, NH3, N2 and other refractory gases by heating, diluting the concentration of flammable gases due to thermal decomposition and release so as to achieve the purpose of flame retardant. Among them, intumescent flame retardant technology originated in 1990s intumescent fire retardant coatings, and in the middle of 1990s developed into a new flame retardant technology, but also a rapid development of a new type of flame retardant.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Nanometer flame retardant is an important branch of nanophase materials, from 1976 the first published article about nano flame retardant epoxy resin patent, superfine fire retardant is booming, especially since the beginning of 1990s, ultrafine flame retardant epoxy resin has become an important research hotspot in the field of flame retardant.
Flame retardant epoxy resin superfine is a flame retardant technology emerging, nanoparticles due to high activity, prone to physical or chemical action with some epoxy groups, and then improve the mechanical properties of resin composite materials 2223, 24 thermal properties and flame retardant properties. At present, the nano materials used in polymer flame retardant are silicate materials, carbon nanotubes, carbon 6025, graphene oxide and so on.
The flame retardancy of epoxy resin / graphene oxide composites was studied by Zhou, Wang and other 26. The results show that the addition of 1% graphene oxide can reduce the peak value of heat release rate (PHRR) from 900kw/m2 to 800kw/m2, and broaden the heat release rate curve. The ignition time rises from 66S to 76s, which is attributed to the formation of CO2 during combustion and the decrease of CO production.
Han Huan 15 to three phosphorus oxychloride, resorcinol or benzene two amine or bisphenol A as the main raw material of three hyperbranched flame retardant was synthesized (3- hydroxy phenyl) phosphate (HBPE), (3- amino phenyl) phosphate amide (ABPA) and [4- (4-hydroxylphenyl isopropyl) phenyl] phosphate (HBPPE).
Experiments show that three kinds of flame retardant of hyperbranched epoxy resin has good flame resistance, the ABPA flame retardant efficiency and flame retardant properties of the best, when the adding amount was 23.8wt%, the limiting oxygen index of flame retardant epoxy resin reached 30%, flame retardant performance for UL94 V-0. Infrared spectrum analysis showed that hyperbranched phosphorus flame retardant did not affect the curing reaction of epoxy resin with two amine of benzene.
Yang Mingshan et al., three, was used to prepare six phenoxy ring flame retardant, and halogen free flame retardant epoxy resin molding compound (EMC) for large scale integrated circuit was prepared by this method. The study found: three flame retardant phosphazene ring six phenoxy has good effect on flame retardant epoxy resin, the preparation of EMC can reach UL94 class V-0 flame retardant performance, its oxygen index reached 33.1%, the flame retardant performance is much better than the traditional brominated flame retardant system, can be used for the preparation of large scale integrated circuit package with EMC.
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.
The characteristics of epoxy resin prepared by the method of structure flame retardant epoxy resin is flame retardant elements contained in the molecular structure is not easy to move, easy leakage, flame retardance, good dimensional stability, excellent and permanent thermal stability, oxidation stability, hydrolytic stability and high char yield.
The structure of flame retardant epoxy resin mainly through the following two aspects: one is the preparation for curing agent containing flame retardant elements to curing epoxy resin; two is through the epoxy functional group containing flame retardant compound and resin react into flame retardant elements. In essence, both of the two elements introduce flame retardant elements by reacting with epoxy groups.
The interrupt mechanism of flame retardant heat exchange refers to will take most heat generated during the combustion of flame retardant materials, lead materials can not maintain the temperature of thermal decomposition, and therefore can not continue to produce combustible gas, the combustion flame retardant effect of self extinguishing.
For example, when the flame retardant materials by strong heat and combustion can melt easily melt dripping molten material, most of the heat is taken away, reducing the feedback to the material body heat, resulting in combustion delay, finally may suspend the combustion process. So, flammable materials are usually very low in flammability. But the disadvantage is that the drop of hot droplets may ignite other substances, increase the risk of fire.
If you can not use ordinary equipment processing thick curtain, carpet and other commodities, can be done in the last process manual spray flame retardant finishing. For the bulk of the surface patterns, tufted pile, pilling fabric, if using padding method will make the pattern surface villi damage, so generally used for spray method.
The flame retardant is dissolved by organic compounds and then flame retardant finishing is carried out. It can shorten the finishing time, and the toxicity and combustibility of the solvent must be paid attention to during the operation.
Nitrogen based flame retardants and traditional flame retardants have the advantages of low tightness, less toxicity, less corrosive to equipment, good flame retardancy, and synergistic use with other flame retardants. Nitrogen based flame retardants belong to the mechanism of gaseous phase, which can be decomposed into CO2, NH3, N2 and other refractory gases by heating, diluting the concentration of flammable gases due to thermal decomposition and release so as to achieve the purpose of flame retardant. Among them, intumescent flame retardant technology originated in 1990s intumescent fire retardant coatings, and in the middle of 1990s developed into a new flame retardant technology, but also a rapid development of a new type of flame retardant.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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