News Details
Unsaturated polyester resin flame retardant
2017-10-26 18:13:31
Unsaturated polyester resin flame retardant
Add flame retardant UPR is refers to USES in has made UPR, mixed with additive flame retardant unsaturated polyester resin, made UPR with flame retardant, the additive flame retardant unsaturated polyester resin is actually a kind of filler in the UPR.
Unsaturated polyester resin, generally a linear polymer compound with esters and unsaturated double bonds of unsaturated diglycol and unsaturated di-acid unsaturated diglycol. Usually, polyester melt polycondensation reaction was conducted in 190 ~ 220 ℃, until the desired acid value (or viscosity), at the end of the polyester melt condensation reaction, add a certain amount of vinyl monomer, match into sticky liquid, the polymer solution is called unsaturated polyester resin.
Unsaturated poly vinegar resins (UPR) is one of the biggest, the most important varieties of thermosetting resin, is also one of the main raw material for production of glass fiber reinforced plastic products. With its simple production technology, raw material availability, but also has good process performance, performance, corrosion resistance and mechanical properties, etc., are widely used in industry, agriculture, construction, transportation and national defense, etc.
But the flammability of UPR material, to a great extent, restricts the use of UPR composites, therefore, it is particularly important to research on flame retardant of UPR composites. Therefore, many scholars at home and abroad, experts on the flame retardancy of unsaturated poly vinegar resin was studied, add various kinds of flame retardants in UPR improve the flame retardant properties of UPR, and made quite a progress.
Add flame retardant UPR is refers to USES in has made UPR, mixed with additive flame retardant unsaturated polyester resin, made UPR with flame retardant, the additive flame retardant unsaturated polyester resin is actually a kind of filler in the UPR.
Add type flame retardant UPR level is low, and often the performance of the technology of UPR, mechanical properties, corrosion resistance and other adverse impact on performance, but this kind of flame retardant UPR production technology is simple, easy to promote, optional or more varieties of flame retardant unsaturated polyester resin.
Unsaturated polyester resin is a kind of chemical raw material, often used for thickening and solidification of the surface of the object, which is like brushing the paint, and the curing process releases the harmful gases such as styrene.
Unsaturated polyester resin is one of the most commonly used in such thermosetting resin, it is made of saturated dibasic acid, unsaturated dibasic acid and glycol polycondensation of linear polymers, crosslinking monomer or active solvent dilution formation has certain viscosity resin solution, hereinafter referred to as the UP.
Excellent process performance is the greatest advantage of unsaturated polyester resin. It can be cured at room temperature, forming under normal pressure and flexible in process, especially suitable for large scale and site making of glass steel products. The composite properties of cured resin are better than those of phenolic resin. Corrosion resistance, electrical properties and flame retardation can be met by choosing the resin of the appropriate number of the resin. The resin is light and can be made into transparent products.
The relative density of unsaturated polyester resin is about 1.11 ~ 1.20, the volume shrinkage rate of curing time is larger, and some physical properties of cured resin are as follows:
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.
Heat resistance. The vast majority of the thermal deformation temperature of the unsaturated polyester resin in 50 ~ 60 ℃, some good resin heat resistance up to 120 ℃. Red heat expansion coefficient alpha 1 (130 ~ 150) x 10-6 ℃.
Mechanical performance. Unsaturated polyester resin has high tensile, bending and compression strength.
Chemical corrosion resistance. Unsaturated polyester resin water, dilute acid, dilute alkali resistant performance is good, organic solvent resistance is poor, at the same time, chemical corrosion resistance of the resin, depending on its chemical structure and geometry switch can have a big difference.
The performance of the system. The dielectric properties of unsaturated polyacid resin are good.
Unsaturated polyester is a linear polymeric compound with a multi-functional group, which has a polyester chain and an unsaturated double bond on the backbone of its backbone, and has carboxyl and hydroxyl groups at each end of the macromolecular chain.
The double bond on the main chain can interact with the vinyl monomer, and the unsaturated polyester resin can be transformed from soluble and molten state to insoluble and non-melting state.
The ester bond on the main chain can hydrolyze, and acid or base can accelerate the reaction. The hydrolysis reaction can be greatly reduced by copolymerization with styrene.
In acidic media, hydrolysis is reversible and incomplete, so the polyester can resist the erosion of acidic media. In the alkaline medium, the hydrolysis of carboxylic acid root is not reversible because of the formation of resonant stable carboxylate anions.
The carboxyl group at the end of the pet chain can react with alkaline earth metal oxides or hydroxide [such as MgO, CaO, Ca(OH) 2, etc] to make unsaturated polyester molecular chain extension, which may eventually form a complex. The expansion of molecular chain can make the initial viscosity 0.1 ~ 1.0 Pa. S viscous liquid resin, the viscosity jumps to 103Pa in a short time. More than s, until it becomes a non-flowing, non-sticky gelatinous substance. The resin is not cross-linked in this state, and can be dissolved in suitable solvents, with good fluidity in heating.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Add flame retardant UPR is refers to USES in has made UPR, mixed with additive flame retardant unsaturated polyester resin, made UPR with flame retardant, the additive flame retardant unsaturated polyester resin is actually a kind of filler in the UPR.
Unsaturated polyester resin, generally a linear polymer compound with esters and unsaturated double bonds of unsaturated diglycol and unsaturated di-acid unsaturated diglycol. Usually, polyester melt polycondensation reaction was conducted in 190 ~ 220 ℃, until the desired acid value (or viscosity), at the end of the polyester melt condensation reaction, add a certain amount of vinyl monomer, match into sticky liquid, the polymer solution is called unsaturated polyester resin.
Unsaturated poly vinegar resins (UPR) is one of the biggest, the most important varieties of thermosetting resin, is also one of the main raw material for production of glass fiber reinforced plastic products. With its simple production technology, raw material availability, but also has good process performance, performance, corrosion resistance and mechanical properties, etc., are widely used in industry, agriculture, construction, transportation and national defense, etc.
But the flammability of UPR material, to a great extent, restricts the use of UPR composites, therefore, it is particularly important to research on flame retardant of UPR composites. Therefore, many scholars at home and abroad, experts on the flame retardancy of unsaturated poly vinegar resin was studied, add various kinds of flame retardants in UPR improve the flame retardant properties of UPR, and made quite a progress.
Add flame retardant UPR is refers to USES in has made UPR, mixed with additive flame retardant unsaturated polyester resin, made UPR with flame retardant, the additive flame retardant unsaturated polyester resin is actually a kind of filler in the UPR.
Add type flame retardant UPR level is low, and often the performance of the technology of UPR, mechanical properties, corrosion resistance and other adverse impact on performance, but this kind of flame retardant UPR production technology is simple, easy to promote, optional or more varieties of flame retardant unsaturated polyester resin.
Unsaturated polyester resin is a kind of chemical raw material, often used for thickening and solidification of the surface of the object, which is like brushing the paint, and the curing process releases the harmful gases such as styrene.
Unsaturated polyester resin is one of the most commonly used in such thermosetting resin, it is made of saturated dibasic acid, unsaturated dibasic acid and glycol polycondensation of linear polymers, crosslinking monomer or active solvent dilution formation has certain viscosity resin solution, hereinafter referred to as the UP.
Excellent process performance is the greatest advantage of unsaturated polyester resin. It can be cured at room temperature, forming under normal pressure and flexible in process, especially suitable for large scale and site making of glass steel products. The composite properties of cured resin are better than those of phenolic resin. Corrosion resistance, electrical properties and flame retardation can be met by choosing the resin of the appropriate number of the resin. The resin is light and can be made into transparent products.
The relative density of unsaturated polyester resin is about 1.11 ~ 1.20, the volume shrinkage rate of curing time is larger, and some physical properties of cured resin are as follows:
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.
Heat resistance. The vast majority of the thermal deformation temperature of the unsaturated polyester resin in 50 ~ 60 ℃, some good resin heat resistance up to 120 ℃. Red heat expansion coefficient alpha 1 (130 ~ 150) x 10-6 ℃.
Mechanical performance. Unsaturated polyester resin has high tensile, bending and compression strength.
Chemical corrosion resistance. Unsaturated polyester resin water, dilute acid, dilute alkali resistant performance is good, organic solvent resistance is poor, at the same time, chemical corrosion resistance of the resin, depending on its chemical structure and geometry switch can have a big difference.
The performance of the system. The dielectric properties of unsaturated polyacid resin are good.
Unsaturated polyester is a linear polymeric compound with a multi-functional group, which has a polyester chain and an unsaturated double bond on the backbone of its backbone, and has carboxyl and hydroxyl groups at each end of the macromolecular chain.
The double bond on the main chain can interact with the vinyl monomer, and the unsaturated polyester resin can be transformed from soluble and molten state to insoluble and non-melting state.
The ester bond on the main chain can hydrolyze, and acid or base can accelerate the reaction. The hydrolysis reaction can be greatly reduced by copolymerization with styrene.
In acidic media, hydrolysis is reversible and incomplete, so the polyester can resist the erosion of acidic media. In the alkaline medium, the hydrolysis of carboxylic acid root is not reversible because of the formation of resonant stable carboxylate anions.
The carboxyl group at the end of the pet chain can react with alkaline earth metal oxides or hydroxide [such as MgO, CaO, Ca(OH) 2, etc] to make unsaturated polyester molecular chain extension, which may eventually form a complex. The expansion of molecular chain can make the initial viscosity 0.1 ~ 1.0 Pa. S viscous liquid resin, the viscosity jumps to 103Pa in a short time. More than s, until it becomes a non-flowing, non-sticky gelatinous substance. The resin is not cross-linked in this state, and can be dissolved in suitable solvents, with good fluidity in heating.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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