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| Place of Origin: | CHINA |
| Brand Name: | ExceedChem |
| Certification: | ISO9001:2008 |
| Model Number: | PTMEG 1000 |
| Minimum Order Quantity: | 1000kg |
|---|---|
| Price: | FOB QINGDAO USD3.6/kg |
| Packaging Details: | 200kg/drum, ISO tank |
| Delivery Time: | within two weeks after confirming the order |
| Payment Terms: | T/T, L/C at sight |
| Supply Ability: | 1000tons per year |
| Appearance: | Clear Liquid | CAS NO.: | 25190-06-1 |
|---|---|---|---|
| Molecular Weight: | 1000 | Application: | Used In The Production Of Convention Polyurethane Elastomer, Such As Spandex Fiber, Coating Agent Of Artificial Leather, Thermoplastic Polyurethane (TPU), Thermoplastic Polyester Elastomer And Others (adhesive, Foam Etc.) |
PTMEG 1000 Used in the Production of Convention Polyurethane Elastomer
Introduction
PTMEG 1000 is nominal 1000 molecular weight diol based on THF (Tetrahydrofuran) polymerization. It's enhanced reactivity make it well suited to use of polyurethane.
Manufacturing Process
Monomer: THF Polymer: PTMG
C4H8O + H2O → H(OCH2CH2CH2CH2)nOH
Application
PTMEG is used extensively in the production of convention polyurethane elastomer, such as spandex fiber, coating agent of artificial leather, thermoplastic polyurethane (TPU), thermoplastic polyester elastomer and others (adhesive, foam etc.)
Specification
| Type | PTMEG 1000 |
| Appearance | Clear liquid |
| Average Molecular Weight | 1000 |
| Viscosity, at 40℃ | 195~245 |
| APHA Color | ≤20 |
| Hydroxyl Number, mgKOH/g | 106.9~118.1 |
| Water Content, % | ≤0.01 |
| Acid Value, mgKOH/g | ≤0.05 |
| BHT, ppm | 200~300 |
Physical and Chemical Properties
| Form | Liquid to waxy |
| Odor | Odorless |
| Color | Colorless |
| PH value | 7 |
| Melting point | 24℃ |
| Boiling point | ≥250℃ |
| Vapor pressure | ≤0.01 mbar (20℃) |
| Density | 0.975g/cm3 (40℃) |
| Solubility in water | Sparing soluble (20℃) |
Package
200kg Steel Drum; ISO Tank Container
Storage
PTMEG is hygroscopic and absorption of moisture would affect polyurethane reactivity and physical properties of resulting polymer. The material should be stored in sealed containers and in dry conditions, away fr om direct sources of light. The recommended storage temperature is between 40 ~ 45 ℃. Opened drums must be reclosed tightly immediately after drawing off material.
Handling Precautions
PTMG has very low odor of acute toxicity and does not present a significant health hazard to users. Normal standards of industrial hygiene should however be observed when handling this chemical.
Suitable protective clothing and safety glasses must be worn to avoid unnecessary contacts and accidental ingestion. In case of skin or eye contact, wash promptly with copious amount of clean water. In case of eye contact, seek medical attention.
PTMG polyether glycol will burn under certain condition and can explode if heated to decomposition temperature in a confined area. Polyols fires can be extinguished with water fog, carbon dioxide or dry chemicals.
