Place of Origin: | CHINA |
Brand Name: | ExceedChem |
Certification: | ISO9001:2008 |
Model Number: | PTMEG 3000 |
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: | 3000 | Application: | 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.) |
PTMEG 3000 Used in the Production of Conventional Polyurethane Elastomer
1. Introduction
PTMEG 3000 is nominal 3000 molecular weight diol based on THF (Tetrahydrofuran) polymerization. It's enhanced reactivity make it well suited to use of polyurethane.
2. Manufacturing Process
Monomer: THF Polymer: PTMG
C4H8O + H2O → H(OCH2CH2CH2CH2)nOH
3. Application
PTMEG is widely used in the production of conventional polyurethane elastomers, including spandex fiber, artificial leather coatings, thermoplastic polyurethane (TPU), thermoplastic polyester elastomer, and various other products like adhesives and foams.
4. Specification
Type | PTMEG 3000 |
Appearance | Clear liquid |
Average Molecular Weight | 3000 |
APHA Color | ≤20 |
Hydroxyl Number, mgKOH/g | 36.2~38.7 |
Water Content, % | ≤0.01 |
Acid Value, mgKOH/g | ≤0.05 |
BHT, ppm | 200~300 |
5. Physical and Chemical Properties
Form | Liquid to waxy |
Odor | Odorless |
Color | Colorless |
PH value | 7 |
Melting point | 30℃ |
Boiling point | ≥250℃ |
Vapor pressure | ≤0.01 mbar (20℃) |
Density | 0.975g/cm3 (40℃) |
Solubility in water | Sparing soluble (20℃) |
6. Package
200kg Steel Drum; ISO Tank Container
7. 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 20 ~ 95 ℃. Opened drums must be reclosed tightly immediately after drawing off material.
8. Handling Precautions
While PTMEG has a low odor and acute toxicity, standard industrial hygiene practices should be followed when handling it. Wear appropriate protective clothing and safety glasses to prevent unnecessary contact and accidental ingestion. In case of skin or eye contact, rinse thoroughly with water. If eye contact occurs, seek medical attention.
9. Fire and Explosion Hazard
PTMEG 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.