author:
malin
Post: 2020年6月19日 85read Comments Off
Overview:Pentamethyldiethylenetriamine is a highly active catalyst for polyurethane reaction. It mainly catalyzes the foaming reaction and is also used to balance the overall foaming and gel reaction. It is widely used in various polyurethane rigid foams, including polyisocyanurate sheet rigid foams. Pentamethyldiethylenetriamine is a chemical substance with the molecular formula C9H23N3. It is a high-efficiency catalyst for polyurethane soft foam. It is used in the formulation of soft foam products and can be used as an auxiliary catalyst for hard foam to improve the fluidity of PU foam in large-capacity refrigerators.Alias: pentamethyldiethylenetriamine, PC-5 hard foam catalyst, PC5 catalyst, PC5Chinese name N,N,N,N,N-pentamethyldiethylenetriamineEnglish name N,N,N',N'',N''-PentamethyldiethylenetriamineAlias 1,1,4,7,7-PentamethyldiethylenetriamineCAS Registry Number 3030-47-5Alias N,N,N′,N″,N″-pentamethyldiethylenetriamine, hard foam catalyst PC-5, PC5 catalyst, catalyst AM-1, PMDETA, hard foam catalyst AM-1Molecular weight C9H23N3Chemical formula C9H23N3Molecular weight 173.3Melting point −20℃Boiling point 198℃Water soluble, soluble in water, ether and alcohol solventsAppearance Colorless or light yellow transparent liquidFlash point 53℃MDL number: MFCD00014876Refractive index: 1.442(lit.)pentamethyldiethylenetriamineBasic Information:Chemical name: N, N, N′, N′, N″-pentamethyldiethylenetriamineAlias: pentamethyldiethyltriamineAbbreviation: PMDETAEnglish name: N, N, N′, N′, N″-pentamethyldiethylenetriamine.Molecular formula: C9H23N3Relative molecular mass 173.3CAS number 3030-47-5Physical and chemical properties:Pentamethyldiethylene triamine is a colorless to pale yellow clear liquid, easily soluble in water, the product purity is generally 98.0%, its typical physical properties are: viscosity (25 ℃) 2mPa.s, relative density (20 ℃) 0.8302- 0.8306, flash point (closed cup) about 72℃, flash point (PMCC) 83.3℃, boiling range 196-201℃ or 70-80℃ (1100Pa), vapor pressure (21℃) 0.29*133Pa, freezing point <-20℃ . Explosion limit: lower limit 1.1%, upper limit 5.6%. Refractive index 1.4435±0.0005, pH=11.0Features and uses:Pentamethyldiethylenetriamine is a highly active catalyst for polyurethane reaction. It mainly catalyzes the foaming reaction and is also used to balance the overall foaming and gel reaction. It is widely used in various polyurethane rigid foams, including polyisocyanurate sheet rigid foams. Because of its strong foaming effect, it can improve the fluidity of the foam, so it improves the production process of the product and increases the production capacity. It is often shared with DMCHA. Pentamethyldiethylenetriamine is used alone as a catalyst for polyurethane foam formulations, and can also be used with other catalysts. When used alone as a hard foam catalyst, the dosage range is 1.0-2.0 parts per 100 parts of polyol.In addition to being used in hard foam formulations, pentamethyldiethylenetriamine can also be used in the production of polyether polyurethane soft foam and molded foam. For example, 70% of pentamethylene diamine is mainly used in the formulation of soft foam products. The catalyst has large activity, fast foaming speed, and the products have high toughness and high load-bearing capacity. 0.1-0.5 parts of the catalyst per 100 parts of polyether in soft foam can get better results. It can also be used as an auxiliary catalyst for hard foam.Pentamethyldiethylene triamine quaternary ammonium salt is a soft foam delay catalyst, used to extend the foaming milk white time, suitable for complex shaped foam products and box foaming process, improve the cell structure and improve the molding quality. The range of its own dosage is quite wide, and the change of dosage has no obvious effect on the milking time; but increasing the dosage can shorten the foam rise time and shorten the curing time.Hazard statementDanger code: TDanger level: 22-24-34Security level: 26-36/37/39-45UN number: UN2734Storage and transportation:Should be sealed and stored in a dry, cool and ventilated warehousepackage:200KG/drum Storage: It is recommended to store in a dry and cool area with proper ventilation. After the original packaging, please fasten the packaging cover as soon as possible to prevent the water and other substances from mixing into the product and affecting its performance. Store in a cool, dry place, keep the container sealed and avoid contact with oxides. Do not breathe dust, avoid skin and mucous membrane contact. Smoking, eating and drinking are prohibited in the workplace. After work, shower and change clothes. Store contaminated clothing separately and wash it before reuse. Maintain good hygiene habits.
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