Product Details
Place of Origin: China
Brand Name: EXCEEDCHEM
Certification: ISO9001:2008
Model Number: PTMG-3000
Payment & Shipping Terms
Minimum Order Quantity: 1000KGS
Price: 4.0usd /kg
Packaging Details: 200KG/DRUM
Delivery Time: 7-10 days
Payment Terms: T/T
Supply Ability: 100MT/Month
PTMEG PTMG-3000 Used for Block Polyurethane Rubber such as Thermoplastic Elastomers TPU
1. Introduction
PTMG 3000
EXCHEM-20210620
PTMG 3000 (Polytetramethylene Glycol PTMEG) is nominal 3000 molecular weight diol based on THF
(Tetrahydrofuran) polymerization. It's enhanced reactivity make it well suited to use of polyurethane.
Manufacturing Process:
Monomer: THF
C4H8O + H2O
2. Application
Polymer: PTMG
→
H(OCH2CH2CH2CH2)nOH
PTMG 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.)
3. Specification
| Appearance | Clear liquid |
| Average Molecular Weight | 3000 |
| APHA Color | ≤20 |
| Hydroxyl Number, mg KOH/g | 36.2-38.7 |
| Water Content, % | ≤0.01 |
| Acid Value, mgKOH/g | ≤0.05 |
| BHT, ppm | 200~300 |
4. 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℃) |
5. Storage
PTMG 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.
6. Packing
200kg Steel Drum; ISO Tank Container
7. 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.
