News Details
Polyurethane resin coating flame retardant
2017-11-3 10:59:39
Polyurethane resin coating flame retardant
Waterborne polyurethane coating is made of polyurethane resin as base material and a coating with water as dispersing media. Water borne polyurethane coatings have good storage stability, mechanical properties, water resistance, solvent resistance and aging resistance, and are similar to those of traditional solvent based polyurethane coatings.
Flame retardant polyurethane resin coating, is an important research topic of waterborne polyurethane coatings. The characteristics of phosphate ester flame retardant polyurethane resin coating is a flame retardant and plasticizer dual function. It can realize non halogenated flame retardant polyurethane resin coating agent. Plasticizing function can make the plastic molding processing flow becomes good, can inhibit the residue after combustion. Toxic gas and corrosive gas produced than halogen flame retardant less.
Polyurethane can increase its solvent resistance and hydrolytic stability. The system composed of polyurethane aqueous dispersion and a small amount of external curing agent is called thermosetting waterborne polyurethane coating, also called external Curing Waterborne Polyurethane coating. The curing agent used are mainly polyfunctional aziridine, amino resin) or special epoxy resin etc.. By aziridine, general dosage is polyurethane quality 3%-5%, there is a good generation of cured film;
According to the material and structure, polyurethane emulsion, vinyl polyurethane emulsion, multi ester emulsion and closed emulsion can be divided into polyurethane emulsion. Polyurethane emulsion is a kind of emulsion which is dispersed in water by the usual method, which is composed of oligomer polyol, chain extender, two different raw materials, polyurethane curing agent.
Vinyl polyurethane emulsion generally refers to the emulsion formed in the vinyl resin aqueous solution or emulsion, which is a two-component system. Many different emulsion containing hydrophilic groups refers more emulsified in water or organic solution dispersed in water containing emulsifier and the formation of the emulsion is a two-component system with the use of that, the production of polyurethane curing agent for a shorter period of time.
The closed emulsion refers to the polyurethane emulsion containing blocked isocyanate groups in the molecule, and it is a stable one component system. In the preparation of emulsion, the sealing agent is introduced into the emulsion, and the emulsion with high content of the closed group is also prepared, which is used for curing with other emulsion systems, curing, and heating and curing after water volatilization.
Select the appropriate solvent type and dosage, not only good quality, but also can greatly reduce the cost; in coil coating of a substrate with polyester resin, solvent selection of some esters (n-butyl acetate) and alcohols (butanol) and some ketones (butanone); as the solvent type acrylic resin with plastic coating alcohol (alcohol, isopropanol, n-propanol) and some ethers (ethylene glycol butyl ether, propylene glycol monomethyl ether), also due to toxicity and other reasons, the ethylene glycol butyl ether is part of the two acetone alcohol substitute.
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP)
Product Name: Tris (1,3-Dichloro-2-Propyl) Phosphate; Tris (1,3-Dichloroisopropyl) Phosphate; Tris (1,3-Dichloroisopropyl) Phosphate; (1,3-Dichloro-2-Propyl) Phosphate; Tris (1,3-Dichloroisopropyl) Phosphate; Tris (1,3-Dichloroisopropyl) Tris (1,3-Dichloro-2-Propyl) Phosphate (TDCPP); TCPP Tris (2-Chloropropyl) Phosphate, Flame Retardant TDCPP
1,3-Dichloro-2-Propanolphosphate (3: 1); 1,3-Dichloro-2-Propanolophosphate (3: 1) 2-Propanol, 1,3-Dichloro, Phosphate (3: 1); 2-Propanol, 1,3-Dichloro-, Phosphate (3: 1) ); Crp (Fireproofingagent); Emulsion 212
CAS No.:13674-87-8
EINECS Number: 237-159-2
Molecular Formula: C9H15Cl6O4P
Molecular Weight: 430.9
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP) Use:
The Product Has A High Efficiency Flame Retardant, Low Volatility, High Thermal Stability, Water Resistance, Alkali Stable And Soluble In Most Organic Substances, Processing Performance, With Plastic, Moisture, Anti-Static, Anti-Pull, Anti-Compression Performance. Widely Used In Unsaturated Polyester, Polyurethane Foam, Epoxy Resin, Phenolic Resin, Rubber, Soft Polyvinyl Chloride, Synthetic Fibers And Other Plastics And Coatings At High Temperature Pyrolysis, Can Be Used As Emulsifier And Explosion-Proof Agent.
Only active solvent will cause the cost is too high, and because of "too full" dissolved resin and make the oil viscosity is too low; but the filling is mixed with solvent, in addition to the proper choice of varieties, but also control the dosage, to ensure that the mixed solvent solvent is.
Dilution ratio - a reactive solvent can tolerate the highest number of solvent filling. Beyond this value, the dissolution force will be completely lost. In the formulation of the formulation, it is necessary to take full account of the influence of the construction ambient temperature, the fillers, pigments and additives in the system on the solubility of the solvent, and retain the excess active solvent to ensure the solubility. As the temperature increases, the dilution ratio also decreases. This is to use a nitro coating causes active solvent in hot weather.
For example: in the nitro coating filled with solvent, aromatic oil solvent dilution ratio analogy is much higher.
If the corresponding ethyl acetate: dilution ratio respectively: toluene 3.4 ---1.0 solvent oil.
When acetone is used as active solvent, it is particularly obvious that the ratio of acetone to toluene is: toluene to 4.5; petroleum solvent ---0.7.
So in the nitro coating, toluene or xylene and other aromatic hydrocarbon as filling solvent, and rarely use aliphatic hydrocarbon as filling solvent. Of course, adding a small amount of n-butanol can significantly increase the amount of solvent with nitro coating.
The key is "re formulation" concept: to maintain the actual performance of the effective mixed solvent formula (solubility and volatility) unchanged, and the market price is low, the supply of solvent replacement - to reduce costs.
The content of solid is high, the pigment containing titanium dioxide is more important than the pigment, so it is easy to be deposited on the bottom. Therefore, the problem of pigment sedimentation must be solved. The commonly used anti settling agent of organic bentonite, fumed silica, polyamide polyethylene wax, wax etc.. It is difficult to disperse fumed silica in this system. Polyethylene wax and polyamide wax have a negative effect on the gelation time of polyurea coatings. The agent also solve the paint in the facade when Tu thick sagging problem.
The selection of pigment both oil absorption and weather resistance, low oil absorption of the pigment can ensure the developed color paints with high solid content and low viscosity, good weatherability paint can ensure adequate durability, selection of rutile titanium dioxide and FW200 high carbon black pigment in this prescription. Made of grey topcoat. Titanium dioxide was added to 40% to ensure that there is enough film covering power.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Waterborne polyurethane coating is made of polyurethane resin as base material and a coating with water as dispersing media. Water borne polyurethane coatings have good storage stability, mechanical properties, water resistance, solvent resistance and aging resistance, and are similar to those of traditional solvent based polyurethane coatings.
Flame retardant polyurethane resin coating, is an important research topic of waterborne polyurethane coatings. The characteristics of phosphate ester flame retardant polyurethane resin coating is a flame retardant and plasticizer dual function. It can realize non halogenated flame retardant polyurethane resin coating agent. Plasticizing function can make the plastic molding processing flow becomes good, can inhibit the residue after combustion. Toxic gas and corrosive gas produced than halogen flame retardant less.
Polyurethane can increase its solvent resistance and hydrolytic stability. The system composed of polyurethane aqueous dispersion and a small amount of external curing agent is called thermosetting waterborne polyurethane coating, also called external Curing Waterborne Polyurethane coating. The curing agent used are mainly polyfunctional aziridine, amino resin) or special epoxy resin etc.. By aziridine, general dosage is polyurethane quality 3%-5%, there is a good generation of cured film;
According to the material and structure, polyurethane emulsion, vinyl polyurethane emulsion, multi ester emulsion and closed emulsion can be divided into polyurethane emulsion. Polyurethane emulsion is a kind of emulsion which is dispersed in water by the usual method, which is composed of oligomer polyol, chain extender, two different raw materials, polyurethane curing agent.
Vinyl polyurethane emulsion generally refers to the emulsion formed in the vinyl resin aqueous solution or emulsion, which is a two-component system. Many different emulsion containing hydrophilic groups refers more emulsified in water or organic solution dispersed in water containing emulsifier and the formation of the emulsion is a two-component system with the use of that, the production of polyurethane curing agent for a shorter period of time.
The closed emulsion refers to the polyurethane emulsion containing blocked isocyanate groups in the molecule, and it is a stable one component system. In the preparation of emulsion, the sealing agent is introduced into the emulsion, and the emulsion with high content of the closed group is also prepared, which is used for curing with other emulsion systems, curing, and heating and curing after water volatilization.
Select the appropriate solvent type and dosage, not only good quality, but also can greatly reduce the cost; in coil coating of a substrate with polyester resin, solvent selection of some esters (n-butyl acetate) and alcohols (butanol) and some ketones (butanone); as the solvent type acrylic resin with plastic coating alcohol (alcohol, isopropanol, n-propanol) and some ethers (ethylene glycol butyl ether, propylene glycol monomethyl ether), also due to toxicity and other reasons, the ethylene glycol butyl ether is part of the two acetone alcohol substitute.
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP)
Product Name: Tris (1,3-Dichloro-2-Propyl) Phosphate; Tris (1,3-Dichloroisopropyl) Phosphate; Tris (1,3-Dichloroisopropyl) Phosphate; (1,3-Dichloro-2-Propyl) Phosphate; Tris (1,3-Dichloroisopropyl) Phosphate; Tris (1,3-Dichloroisopropyl) Tris (1,3-Dichloro-2-Propyl) Phosphate (TDCPP); TCPP Tris (2-Chloropropyl) Phosphate, Flame Retardant TDCPP
1,3-Dichloro-2-Propanolphosphate (3: 1); 1,3-Dichloro-2-Propanolophosphate (3: 1) 2-Propanol, 1,3-Dichloro, Phosphate (3: 1); 2-Propanol, 1,3-Dichloro-, Phosphate (3: 1) ); Crp (Fireproofingagent); Emulsion 212
CAS No.:13674-87-8
EINECS Number: 237-159-2
Molecular Formula: C9H15Cl6O4P
Molecular Weight: 430.9
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP) Use:
The Product Has A High Efficiency Flame Retardant, Low Volatility, High Thermal Stability, Water Resistance, Alkali Stable And Soluble In Most Organic Substances, Processing Performance, With Plastic, Moisture, Anti-Static, Anti-Pull, Anti-Compression Performance. Widely Used In Unsaturated Polyester, Polyurethane Foam, Epoxy Resin, Phenolic Resin, Rubber, Soft Polyvinyl Chloride, Synthetic Fibers And Other Plastics And Coatings At High Temperature Pyrolysis, Can Be Used As Emulsifier And Explosion-Proof Agent.
Only active solvent will cause the cost is too high, and because of "too full" dissolved resin and make the oil viscosity is too low; but the filling is mixed with solvent, in addition to the proper choice of varieties, but also control the dosage, to ensure that the mixed solvent solvent is.
Dilution ratio - a reactive solvent can tolerate the highest number of solvent filling. Beyond this value, the dissolution force will be completely lost. In the formulation of the formulation, it is necessary to take full account of the influence of the construction ambient temperature, the fillers, pigments and additives in the system on the solubility of the solvent, and retain the excess active solvent to ensure the solubility. As the temperature increases, the dilution ratio also decreases. This is to use a nitro coating causes active solvent in hot weather.
For example: in the nitro coating filled with solvent, aromatic oil solvent dilution ratio analogy is much higher.
If the corresponding ethyl acetate: dilution ratio respectively: toluene 3.4 ---1.0 solvent oil.
When acetone is used as active solvent, it is particularly obvious that the ratio of acetone to toluene is: toluene to 4.5; petroleum solvent ---0.7.
So in the nitro coating, toluene or xylene and other aromatic hydrocarbon as filling solvent, and rarely use aliphatic hydrocarbon as filling solvent. Of course, adding a small amount of n-butanol can significantly increase the amount of solvent with nitro coating.
The key is "re formulation" concept: to maintain the actual performance of the effective mixed solvent formula (solubility and volatility) unchanged, and the market price is low, the supply of solvent replacement - to reduce costs.
The content of solid is high, the pigment containing titanium dioxide is more important than the pigment, so it is easy to be deposited on the bottom. Therefore, the problem of pigment sedimentation must be solved. The commonly used anti settling agent of organic bentonite, fumed silica, polyamide polyethylene wax, wax etc.. It is difficult to disperse fumed silica in this system. Polyethylene wax and polyamide wax have a negative effect on the gelation time of polyurea coatings. The agent also solve the paint in the facade when Tu thick sagging problem.
The selection of pigment both oil absorption and weather resistance, low oil absorption of the pigment can ensure the developed color paints with high solid content and low viscosity, good weatherability paint can ensure adequate durability, selection of rutile titanium dioxide and FW200 high carbon black pigment in this prescription. Made of grey topcoat. Titanium dioxide was added to 40% to ensure that there is enough film covering power.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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