News Details
Flame retardant for polyurethane foam
2017-10-28 11:44:19
Flame retardant for polyurethane foam
Because of the excellent performance and wide use of polyurethane elastomers, the research on polyurethane elastomer is in the ascendant at home and abroad, and the processing and application of polyurethane elastomers are improved by means of technology. In recent years, a variety of new types of polyurethane elastomers have been developed at home and abroad, among which the most promising ones are:
Hydrolysis of polyurethane elastomer high temperature resistant performance and ease of shortcomings, such as by improving the elastomer crosslinking density, increase the degree of micro phase separation and selection of isocyanate and raw materials such as chain extender to improve the performance of polyurethane elastomer, and also by adding antioxidants, heat stabilizers and some packing to improve the thermal stability of polyurethane elastomer. Many applications, especially some newly developed electronics, medical, automobile, packaging and other industries have high anti-static demand, so the development of antistatic polyurethane elastomer is an important development direction. Several research institutions to add cationic antistatic agent, filled with carbon black, metal materials, metal fiber, and hydrophilic polymer or intrinsic conductive polymer blend method such as the preparation of antistatic polyurethane elastomer.
3 (2- chloropropyl) phosphate ester (TCPP) is the flame retardant of polyurethane foam plastic and has a good plasticizing effect. Because the molecule contains both phosphorus and chlorine, the flame retardant performance is remarkable, and it also has the effect of plasticizing, moisture-proof and anti-static. Because the content of phosphorus chloride is lower than TCEP, its flame retardant effect is relatively weak.
TCPP is mainly used as flame retardant for polyurethane foam. Generally used for polyurethane hard foam and PIR hard foaming, also used in polyurethane soft foam. Used for polyurethane soft foam with poor persistence, but not to cause the foam to burn.
The development potential of polyurethane elastomers is huge
In recent years, the study of liquid crystal polyurethane elastomers has been more active, mainly focusing on the selection of raw materials, optimization of technological routes and improving physical properties. The liquid crystal polyurethane is a kind of polyurethane elastomer with liquid crystal properties under the state of melt. The material has good machinery,
Thermal stability, high elasticity, high elongation and machining properties. The synthesis of liquid crystal polyurethane elastomer can be taken one step or two step polymerization process, and the processing molding process is diverse, extruding, injection, molding and coating are all available. Synthetic material blending modification in polymer research and development of one of the key, polyurethane elastomer with PVC, PV, PE, ABS and so on the many kinds of synthetic resin in blending modification, to reduce production cost and improve the physical and processing performance. It also develops the polyurethane elastomer of different raw materials. It has outstanding dynamic mechanical properties, good resilience, and has very good flexure, application and market prospect.
Tris(2-chloroisopropyl)Phosphate(TCPP)
Tris(2-chloroisopropyl)Phosphate(Flame retardant TCPP) is a colorless or yellowish oily liquid. It is soluble in benzene, alcohol, carbon tetrachloride and other organic solvents, but insoluble in water and aliphatic hydrocarbons. Its relative density is 1.27-1.31, refractive index is 1.4916 ( 21.5 ), viscosity is 58mm2 / S, chlorine content is 32.8%, and phosphorus content is 9.5%. As the molecule contains phosphorus and chlorine element simultaneously, its flame retardant properties is significant, as well as the plasticization, damp-proof, antistatic effects and so on. Tris(2-chloropropyl) phosphate (TCPP) is an additive flame retardant.
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.
Polyurethane is a new kind of organic polymer material, which has been widely used in many fields of national economy due to its excellent performance.
The product application field involves light industry, chemical industry, electronics, textile, medical, construction, building materials, automobile, defense, aerospace, aviation and so on. This article starts from the structure of polyurethane micro analysis, it is concluded that the main performance of polyurethane, and then based on these properties, lists the four specific practical application of polyurethane materials: sharkskin swimsuit, pu sole., polyurethane coating and polyurethane adhesives
Polyurethane is a class of polymer that contains many repetitive carbamate groups in the molecular structure, known as polyurethane, or PU. Polyurethane based on its composition can be made into thermoplastic polyurethane of linear molecules, which can also be used as thermosetting polyurethane of body type molecules. The former is mainly used for elastomer, coating, adhesive, synthetic leather, etc., which are mainly used to make various soft, semi-rigid and hard foamed plastics.
Polyurethane was first developed by German scientists in 1937 and began to industrialize in 1939. Its manufacturing methods are isocyanate and compounds containing active hydrogen (such as alcohol, amine, carboxylic acid, water, etc.) to produce compounds with carbamate groups.
Among them, the reaction of isocyanate and polyol was the basic reaction of making PU, and the reaction was gradually adding polymerization, and no small molecule by-product was produced during the reaction. If the isocyanate or polyols have more than three functional groups, then the three-dimensional network structure is generated.
Polyurethane elastomers are used for rollers, conveyor belts, hoses, auto parts, soles, synthetic leather, wire and cable and medical artificial organs. Soft foam padding for vehicles, bedroom, clothing, rigid foam is used as heat insulation, sound-absorbing, packaging, insulation and low foaming composite wood, paint used for advanced vehicles, furniture, wood and metal protection, pool dam and construction leakage material, as well as the fabric coating, etc. Adhesive has good adhesion to metal, glass, ceramics, leather, fiber and so on. In addition, polyurethane can also be made into emulsion, magnetic material and so on.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Because of the excellent performance and wide use of polyurethane elastomers, the research on polyurethane elastomer is in the ascendant at home and abroad, and the processing and application of polyurethane elastomers are improved by means of technology. In recent years, a variety of new types of polyurethane elastomers have been developed at home and abroad, among which the most promising ones are:
Hydrolysis of polyurethane elastomer high temperature resistant performance and ease of shortcomings, such as by improving the elastomer crosslinking density, increase the degree of micro phase separation and selection of isocyanate and raw materials such as chain extender to improve the performance of polyurethane elastomer, and also by adding antioxidants, heat stabilizers and some packing to improve the thermal stability of polyurethane elastomer. Many applications, especially some newly developed electronics, medical, automobile, packaging and other industries have high anti-static demand, so the development of antistatic polyurethane elastomer is an important development direction. Several research institutions to add cationic antistatic agent, filled with carbon black, metal materials, metal fiber, and hydrophilic polymer or intrinsic conductive polymer blend method such as the preparation of antistatic polyurethane elastomer.
3 (2- chloropropyl) phosphate ester (TCPP) is the flame retardant of polyurethane foam plastic and has a good plasticizing effect. Because the molecule contains both phosphorus and chlorine, the flame retardant performance is remarkable, and it also has the effect of plasticizing, moisture-proof and anti-static. Because the content of phosphorus chloride is lower than TCEP, its flame retardant effect is relatively weak.
TCPP is mainly used as flame retardant for polyurethane foam. Generally used for polyurethane hard foam and PIR hard foaming, also used in polyurethane soft foam. Used for polyurethane soft foam with poor persistence, but not to cause the foam to burn.
The development potential of polyurethane elastomers is huge
In recent years, the study of liquid crystal polyurethane elastomers has been more active, mainly focusing on the selection of raw materials, optimization of technological routes and improving physical properties. The liquid crystal polyurethane is a kind of polyurethane elastomer with liquid crystal properties under the state of melt. The material has good machinery,
Thermal stability, high elasticity, high elongation and machining properties. The synthesis of liquid crystal polyurethane elastomer can be taken one step or two step polymerization process, and the processing molding process is diverse, extruding, injection, molding and coating are all available. Synthetic material blending modification in polymer research and development of one of the key, polyurethane elastomer with PVC, PV, PE, ABS and so on the many kinds of synthetic resin in blending modification, to reduce production cost and improve the physical and processing performance. It also develops the polyurethane elastomer of different raw materials. It has outstanding dynamic mechanical properties, good resilience, and has very good flexure, application and market prospect.
Tris(2-chloroisopropyl)Phosphate(TCPP)
Tris(2-chloroisopropyl)Phosphate(Flame retardant TCPP) is a colorless or yellowish oily liquid. It is soluble in benzene, alcohol, carbon tetrachloride and other organic solvents, but insoluble in water and aliphatic hydrocarbons. Its relative density is 1.27-1.31, refractive index is 1.4916 ( 21.5 ), viscosity is 58mm2 / S, chlorine content is 32.8%, and phosphorus content is 9.5%. As the molecule contains phosphorus and chlorine element simultaneously, its flame retardant properties is significant, as well as the plasticization, damp-proof, antistatic effects and so on. Tris(2-chloropropyl) phosphate (TCPP) is an additive flame retardant.
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.
Polyurethane is a new kind of organic polymer material, which has been widely used in many fields of national economy due to its excellent performance.
The product application field involves light industry, chemical industry, electronics, textile, medical, construction, building materials, automobile, defense, aerospace, aviation and so on. This article starts from the structure of polyurethane micro analysis, it is concluded that the main performance of polyurethane, and then based on these properties, lists the four specific practical application of polyurethane materials: sharkskin swimsuit, pu sole., polyurethane coating and polyurethane adhesives
Polyurethane is a class of polymer that contains many repetitive carbamate groups in the molecular structure, known as polyurethane, or PU. Polyurethane based on its composition can be made into thermoplastic polyurethane of linear molecules, which can also be used as thermosetting polyurethane of body type molecules. The former is mainly used for elastomer, coating, adhesive, synthetic leather, etc., which are mainly used to make various soft, semi-rigid and hard foamed plastics.
Polyurethane was first developed by German scientists in 1937 and began to industrialize in 1939. Its manufacturing methods are isocyanate and compounds containing active hydrogen (such as alcohol, amine, carboxylic acid, water, etc.) to produce compounds with carbamate groups.
Among them, the reaction of isocyanate and polyol was the basic reaction of making PU, and the reaction was gradually adding polymerization, and no small molecule by-product was produced during the reaction. If the isocyanate or polyols have more than three functional groups, then the three-dimensional network structure is generated.
Polyurethane elastomers are used for rollers, conveyor belts, hoses, auto parts, soles, synthetic leather, wire and cable and medical artificial organs. Soft foam padding for vehicles, bedroom, clothing, rigid foam is used as heat insulation, sound-absorbing, packaging, insulation and low foaming composite wood, paint used for advanced vehicles, furniture, wood and metal protection, pool dam and construction leakage material, as well as the fabric coating, etc. Adhesive has good adhesion to metal, glass, ceramics, leather, fiber and so on. In addition, polyurethane can also be made into emulsion, magnetic material and so on.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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