News Details
Polyurethane foam flame retardant
2017-10-27 12:13:29
Polyurethane foam flame retardant
The application of polyurethane elastomer. Polyurethane rubber is widely used in automotive industry, mechanical industry, electrical and meter industry, leather and shoe industry, medical and sports. Can be used as various parts, sole and heel, solid tire, conveyor, pipeline, sieve plate and mesh, brass and collar, pump and impeller cladding layer, rubber roller, gasket, oil seal, sports shoes, outdoor cable sheath and sponge foam products such as raw materials.
The synthetic leather materials made from PU are the closest to the natural leather, with good feeling, high permeability, soft and moderate, and widely used in clothing, leather shoes, furniture, bags and car seats. It can be manufactured by pouring PU elastomer, which can be used in high load bearing and high wear-resisting steel and paper industry. PU elastomers can also be used for high - wear and high - strength structural materials in oil fields, mining and metallurgical industries.
Halogenated phosphate ester compounds are widely used and effective. Most halogenated phosphates are liquid at normal temperature and easy to use, with good compatibility with polyols and moderate price. There are many varieties of polyurethane foam flame retardant.
The abrasion resistance of polyurethane elastomer is very prominent and the test results are generally 0. 03 ~ 0. Within the range of 20mm/m, about 3 ~ 5 times of natural rubber. In actual use, due to the influence of factors such as lubricants, the effect is often better. Wear resistance and material tear strength and surface condition are very important.
The tensile strength of polyurethane elastomer is much higher than that of other rubber, but its friction coefficient is not low, usually at 0. More than 5, which requires attention in be used actually add oil lubricant, or add a small amount of molybdenum disulfide or graphite, silicone oil, tetrafluoroethylene powder, etc., to reduce the coefficient of friction, reduce friction heat. The friction coefficient is also related to the material hardness and surface temperature. In all cases, with the decrease of hardness and friction coefficient increase, along with the rise of the surface temperature rise, about 60 ℃ maximum.
The water resistance of polyurethane elastomers at normal temperature is good, and no obvious hydrolysis can occur in one or two years, especially polybutadiene, polyether and polycarbonate. Heat resistance and oxidation resistance: the heat resistance of polyurethane elastomers in inert gases is good, and the resistance to oxygen and ozone in normal temperature is good, especially polyester. But the combination of high temperature and oxygen can accelerate the aging process of polyurethane.
General of polyurethane elastomer in the air for long time continuous use of the maximum temperature is 80 ~ 90 ℃, use short time can reach 120 ℃, the thermal oxidation significantly influence the temperature is about l30 ℃. According to the variety, the polyester type is better than the polyether type. The hardness, tensile strength, tear strength and torsion stiffness of polyurethane elastomer were significantly increased with the decrease of temperature, and the rebound and elongation decreased.
The effect of polyurethane elastomer on alternating stress shows obvious hysteresis. In this process, some of the energy dissipation of energy is consumed by internal friction of the elastomers, transforming into heat energy. This property is called the absorbability of the material, also known as energy absorption or damping properties.
The damping performance is usually expressed by the attenuation coefficient. The attenuation coefficient indicates that the deformation of the material can absorb the percentage of energy applied to it. In addition to the properties of materials, it is also related to ambient temperature and vibration frequency. The higher the temperature, the lower the attenuation coefficient, the higher the vibration frequency, the higher the absorption energy.
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP)
Appearance: Colorless Viscous Liquid
Melting Point: -64 ℃
Boiling Point: 315 ℃
Density: 1.512
Flash Point: 249 ℃
Refractive Index: N20 / D 1.503
Specific Gravity 1.490-1.510
Chlorine Content Of 49.5% ± 0.5
Color Value Max 100
Water Content 0.10% Max
Viscosity (25 ° C) 1500-1800 CPS
Acidity (Mg KOH / G 0.10 Max
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
In addition to the above performance, the electrical insulating properties of polyurethane elastomer are relatively good at the general working temperature, which is approximately the level of chloroprene rubber and phenolic resin. Since it can be molded and hot plastic forming, it is often used as an electrical component for sealing and cable sheath. Polyurethane elastomers are of molecular polarity
It is relatively large and has an affinity for water, so its electrical performance is relatively large with the temperature of the environment, and it is not suitable for the use of high frequency electrical materials. In addition, the electrical performance of polyurethane elastomer decreases with temperature, and increases with the hardness of the material.
In synthetic polymer materials, the performance of high energy rays of polyurethane elastomer is very good. However, for light or transparent elastomers, the discoloration occurs under the action of the rays. Polyurethane material has excellent biocompatibility, acute or chronic toxicity studies and animal experiments have confirmed that medical polyurethane material non-toxic, no to distortion effect, no allergic reaction, there was no local excitation, ignorance of heat resistance, is one of the most valuable synthetic medical polymer materials.
In recent years, countries have strengthened their application development research in accordance with market demand conditions. The key points of development are as follows:
The automotive thermoplastic elastomer is mainly polyester, commonly used in RIMPUR, and the glass fiber or glass microspheres are added. Specific products include: bumper, fender, steering wheel, baffle board, trunk cover, door handle, armrest, dashboard and anti-slip chain.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
The application of polyurethane elastomer. Polyurethane rubber is widely used in automotive industry, mechanical industry, electrical and meter industry, leather and shoe industry, medical and sports. Can be used as various parts, sole and heel, solid tire, conveyor, pipeline, sieve plate and mesh, brass and collar, pump and impeller cladding layer, rubber roller, gasket, oil seal, sports shoes, outdoor cable sheath and sponge foam products such as raw materials.
The synthetic leather materials made from PU are the closest to the natural leather, with good feeling, high permeability, soft and moderate, and widely used in clothing, leather shoes, furniture, bags and car seats. It can be manufactured by pouring PU elastomer, which can be used in high load bearing and high wear-resisting steel and paper industry. PU elastomers can also be used for high - wear and high - strength structural materials in oil fields, mining and metallurgical industries.
Halogenated phosphate ester compounds are widely used and effective. Most halogenated phosphates are liquid at normal temperature and easy to use, with good compatibility with polyols and moderate price. There are many varieties of polyurethane foam flame retardant.
The abrasion resistance of polyurethane elastomer is very prominent and the test results are generally 0. 03 ~ 0. Within the range of 20mm/m, about 3 ~ 5 times of natural rubber. In actual use, due to the influence of factors such as lubricants, the effect is often better. Wear resistance and material tear strength and surface condition are very important.
The tensile strength of polyurethane elastomer is much higher than that of other rubber, but its friction coefficient is not low, usually at 0. More than 5, which requires attention in be used actually add oil lubricant, or add a small amount of molybdenum disulfide or graphite, silicone oil, tetrafluoroethylene powder, etc., to reduce the coefficient of friction, reduce friction heat. The friction coefficient is also related to the material hardness and surface temperature. In all cases, with the decrease of hardness and friction coefficient increase, along with the rise of the surface temperature rise, about 60 ℃ maximum.
The water resistance of polyurethane elastomers at normal temperature is good, and no obvious hydrolysis can occur in one or two years, especially polybutadiene, polyether and polycarbonate. Heat resistance and oxidation resistance: the heat resistance of polyurethane elastomers in inert gases is good, and the resistance to oxygen and ozone in normal temperature is good, especially polyester. But the combination of high temperature and oxygen can accelerate the aging process of polyurethane.
General of polyurethane elastomer in the air for long time continuous use of the maximum temperature is 80 ~ 90 ℃, use short time can reach 120 ℃, the thermal oxidation significantly influence the temperature is about l30 ℃. According to the variety, the polyester type is better than the polyether type. The hardness, tensile strength, tear strength and torsion stiffness of polyurethane elastomer were significantly increased with the decrease of temperature, and the rebound and elongation decreased.
The effect of polyurethane elastomer on alternating stress shows obvious hysteresis. In this process, some of the energy dissipation of energy is consumed by internal friction of the elastomers, transforming into heat energy. This property is called the absorbability of the material, also known as energy absorption or damping properties.
The damping performance is usually expressed by the attenuation coefficient. The attenuation coefficient indicates that the deformation of the material can absorb the percentage of energy applied to it. In addition to the properties of materials, it is also related to ambient temperature and vibration frequency. The higher the temperature, the lower the attenuation coefficient, the higher the vibration frequency, the higher the absorption energy.
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP)
Appearance: Colorless Viscous Liquid
Melting Point: -64 ℃
Boiling Point: 315 ℃
Density: 1.512
Flash Point: 249 ℃
Refractive Index: N20 / D 1.503
Specific Gravity 1.490-1.510
Chlorine Content Of 49.5% ± 0.5
Color Value Max 100
Water Content 0.10% Max
Viscosity (25 ° C) 1500-1800 CPS
Acidity (Mg KOH / G 0.10 Max
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
In addition to the above performance, the electrical insulating properties of polyurethane elastomer are relatively good at the general working temperature, which is approximately the level of chloroprene rubber and phenolic resin. Since it can be molded and hot plastic forming, it is often used as an electrical component for sealing and cable sheath. Polyurethane elastomers are of molecular polarity
It is relatively large and has an affinity for water, so its electrical performance is relatively large with the temperature of the environment, and it is not suitable for the use of high frequency electrical materials. In addition, the electrical performance of polyurethane elastomer decreases with temperature, and increases with the hardness of the material.
In synthetic polymer materials, the performance of high energy rays of polyurethane elastomer is very good. However, for light or transparent elastomers, the discoloration occurs under the action of the rays. Polyurethane material has excellent biocompatibility, acute or chronic toxicity studies and animal experiments have confirmed that medical polyurethane material non-toxic, no to distortion effect, no allergic reaction, there was no local excitation, ignorance of heat resistance, is one of the most valuable synthetic medical polymer materials.
In recent years, countries have strengthened their application development research in accordance with market demand conditions. The key points of development are as follows:
The automotive thermoplastic elastomer is mainly polyester, commonly used in RIMPUR, and the glass fiber or glass microspheres are added. Specific products include: bumper, fender, steering wheel, baffle board, trunk cover, door handle, armrest, dashboard and anti-slip chain.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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