News Details
Polyurethane elastomer flame retardant
2017-10-27 12:13:26
Polyurethane elastomer flame retardant
Polyurethane abbreviations for PU, is by the bivariate or multivariate isocyanate with dual or multiple hydroxyl compounds and the floorboard of the polymer, polyurethane PU according to the application of different packing, CPU, TPU and MPU, referred to as ". Polyurethane is known as polyurethane and is a general term for large molecular compounds containing repeated carbamate groups in the main chain. The raw materials can be classified into isocyanates (such as MDI and TDI), polyols (such as PO and PTMEG) and auxiliaries (such as DMF).
Polyurethane rubber (UR) is a polymer of polyester (or polyether) and diisocyanate. Its chemical structure is more complex than the general elastic polymer, and in addition to the repeated amino formate groups, the molecular chains often contain groups such as esters, ethers, and aromatic groups. The main chain of UR molecules consists of flexible chain segments and rigid chain segments.
Like most other macromolecular materials, polyurethane is not heat-resistant and can easily be ignited, producing toxic gas and endangering the safety of personal property. Therefore, the polyurethane products have certain flame retardancy. Adding polyurethane elastomer flame retardants is the most commonly used method. Polyurethane elastomers are important auxiliaries of polyurethane materials.
The flexible segment is also called soft chain segment, which consists of low polymer polyols (such as polyester, polyether, polybutadiene, etc.). The rigid chain segment is also known as the hard chain segment, which is composed of the reaction products of diisocyanate (such as TDI, MDI, etc.) and small molecular chain extender (such as duanilamine an-metol). The soft link segment is more than the hard chain segment.
The polarity of the soft and hard chain segment different strength, hard chain segment polarity is stronger, easy to get together, forming many micro cloudyrespectively soft segment phase, called micro phase separation structure, its physical and mechanical properties and micro phase separation degree has much to do. The force of the hydrogen bond between the main chains of UR molecules has high strength and high elasticity.
Polyurethane rubber with high hardness, good strength, high elasticity, high abrasion resistance, tear resistance, ageing resistance, ozone resistance, radiation resistance, good chemical resistance and good electrical conductivity, etc, is the general rubber can't than; The wear-resisting property is the highest in all rubber, and the laboratory test results show that the resistance of UR is 3 ~ 5 times that of natural rubber, and the actual application is often as high as l0 times. High strength and elasticity in the range of the hardness of shael A60 to shael A70;
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.
The cushioning damping is good. At room temperature, UR shock absorber can absorb 10 ~ 20 vibration energy. The higher the vibration frequency, the higher the energy absorption. Good oil resistance and drug resistance, UR and nonpolar smaller affinity of mineral oil, the fuel oil (such as kerosene, gasoline) and machine oil (such as hydraulic oil, engine oil, lubricating oil, etc.) of erosion, hardly better than general rubber, can be comparable to NBR; Low temperature resistance, ozone resistance, radiation resistance, electrical insulation, good adhesion. The disadvantage is that the swelling in alcohols, esters, ketones and aromatic hydrocarbons is larger. The friction coefficient is higher, usually at 0. More than 5.
Polyurethane elastomers are excellent in combination, and any other rubber or plastic is unbeatable. And polyurethane elastomer can be according to the requirements of the processing and molding processing, almost can use high polymer material of any kind of conventional processing technology, such as mixing moulding, liquid casting, melt injection and extrusion, calendering, blow molding, plastic coating, spinning and machining, etc.
The main performance parameters of polyurethane elastomer are as follows:
Hardness: ordinary rubber hardness in the range of Shao Er A2O ~ Shao Er A90, plastic hardness range is about Shao Er A95 ~ lg D100, and polyurethane elastomer hardness range as low as Shao Er A10, high Shao Er D80, and do not need help to packing. Is especially valuable elastomer still has good rubber elasticity under plastic hardness and elongation, and only by adding a large number of ordinary rubber packing, and to reduce the elasticity and elongation expense to obtain high hardness.
Mechanical strength: the mechanical strength of polyurethane elastomer is high, which is expressed in young's modulus, tear strength and bearing capacity. Young's modulus and tensile strength: in elastic limit, the ratio of tensile stress to deformation is called young's modulus (E) or elastic modulus. Polyurethane elastomers are the same as other elastomers, only at low elongation (about 2. 5) just follow hooke's law. But its young's modulus is much higher than other elastomers. And the size of the young's modulus of polyurethane elastomers is widespread in rubber and plastic, and the width of the range is unmatched by other materials.
Tear strength: the tear strength of polyurethane elastomer is very high, especially polyester, about twice as much as natural rubber. Carrying capacity: although under the low hardness of polyurethane elastomer compression strength is not high also, but polyurethane elastomer can in keeping the rubber elasticity under the premise of improving hardness, so as to achieve a high bearing capacity. The hardness of other rubber is very limited, so the carrying capacity cannot be greatly improved.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Polyurethane abbreviations for PU, is by the bivariate or multivariate isocyanate with dual or multiple hydroxyl compounds and the floorboard of the polymer, polyurethane PU according to the application of different packing, CPU, TPU and MPU, referred to as ". Polyurethane is known as polyurethane and is a general term for large molecular compounds containing repeated carbamate groups in the main chain. The raw materials can be classified into isocyanates (such as MDI and TDI), polyols (such as PO and PTMEG) and auxiliaries (such as DMF).
Polyurethane rubber (UR) is a polymer of polyester (or polyether) and diisocyanate. Its chemical structure is more complex than the general elastic polymer, and in addition to the repeated amino formate groups, the molecular chains often contain groups such as esters, ethers, and aromatic groups. The main chain of UR molecules consists of flexible chain segments and rigid chain segments.
Like most other macromolecular materials, polyurethane is not heat-resistant and can easily be ignited, producing toxic gas and endangering the safety of personal property. Therefore, the polyurethane products have certain flame retardancy. Adding polyurethane elastomer flame retardants is the most commonly used method. Polyurethane elastomers are important auxiliaries of polyurethane materials.
The flexible segment is also called soft chain segment, which consists of low polymer polyols (such as polyester, polyether, polybutadiene, etc.). The rigid chain segment is also known as the hard chain segment, which is composed of the reaction products of diisocyanate (such as TDI, MDI, etc.) and small molecular chain extender (such as duanilamine an-metol). The soft link segment is more than the hard chain segment.
The polarity of the soft and hard chain segment different strength, hard chain segment polarity is stronger, easy to get together, forming many micro cloudyrespectively soft segment phase, called micro phase separation structure, its physical and mechanical properties and micro phase separation degree has much to do. The force of the hydrogen bond between the main chains of UR molecules has high strength and high elasticity.
Polyurethane rubber with high hardness, good strength, high elasticity, high abrasion resistance, tear resistance, ageing resistance, ozone resistance, radiation resistance, good chemical resistance and good electrical conductivity, etc, is the general rubber can't than; The wear-resisting property is the highest in all rubber, and the laboratory test results show that the resistance of UR is 3 ~ 5 times that of natural rubber, and the actual application is often as high as l0 times. High strength and elasticity in the range of the hardness of shael A60 to shael A70;
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.
The cushioning damping is good. At room temperature, UR shock absorber can absorb 10 ~ 20 vibration energy. The higher the vibration frequency, the higher the energy absorption. Good oil resistance and drug resistance, UR and nonpolar smaller affinity of mineral oil, the fuel oil (such as kerosene, gasoline) and machine oil (such as hydraulic oil, engine oil, lubricating oil, etc.) of erosion, hardly better than general rubber, can be comparable to NBR; Low temperature resistance, ozone resistance, radiation resistance, electrical insulation, good adhesion. The disadvantage is that the swelling in alcohols, esters, ketones and aromatic hydrocarbons is larger. The friction coefficient is higher, usually at 0. More than 5.
Polyurethane elastomers are excellent in combination, and any other rubber or plastic is unbeatable. And polyurethane elastomer can be according to the requirements of the processing and molding processing, almost can use high polymer material of any kind of conventional processing technology, such as mixing moulding, liquid casting, melt injection and extrusion, calendering, blow molding, plastic coating, spinning and machining, etc.
The main performance parameters of polyurethane elastomer are as follows:
Hardness: ordinary rubber hardness in the range of Shao Er A2O ~ Shao Er A90, plastic hardness range is about Shao Er A95 ~ lg D100, and polyurethane elastomer hardness range as low as Shao Er A10, high Shao Er D80, and do not need help to packing. Is especially valuable elastomer still has good rubber elasticity under plastic hardness and elongation, and only by adding a large number of ordinary rubber packing, and to reduce the elasticity and elongation expense to obtain high hardness.
Mechanical strength: the mechanical strength of polyurethane elastomer is high, which is expressed in young's modulus, tear strength and bearing capacity. Young's modulus and tensile strength: in elastic limit, the ratio of tensile stress to deformation is called young's modulus (E) or elastic modulus. Polyurethane elastomers are the same as other elastomers, only at low elongation (about 2. 5) just follow hooke's law. But its young's modulus is much higher than other elastomers. And the size of the young's modulus of polyurethane elastomers is widespread in rubber and plastic, and the width of the range is unmatched by other materials.
Tear strength: the tear strength of polyurethane elastomer is very high, especially polyester, about twice as much as natural rubber. Carrying capacity: although under the low hardness of polyurethane elastomer compression strength is not high also, but polyurethane elastomer can in keeping the rubber elasticity under the premise of improving hardness, so as to achieve a high bearing capacity. The hardness of other rubber is very limited, so the carrying capacity cannot be greatly improved.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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