Korea PTG PTMEG 650 polytetrahydrofuran ether/polytetramethyl ether glycol PTMEG650 molecular weight 25190-06-1
SPECIFICATION Specifications
|
ITEMProject |
UNITUNIT |
SPECIFICATIONParameters |
|
APPEARANCE Appearance |
— |
transparent liquid or White waxy solid at low temperature Room temperature 23Transparent liquid (white waxy solid) |
|
MOLECULAR WEIGHT Molecular weight |
G /MOL |
650 +/- 25 |
|
HYDROXYL NO hydroxyl value |
MG KOH/G |
166.2 ~ 179.5 |
|
ACID NO ℃ |
0.984 |
|
|
Melting Point Melting point (℃) |
℃ |
23 – 25 |
|
Flash Point Flash Point (open cup, ℃) |
℃ |
> 280 |
Solubility Application
The main raw material for synthetic polyurethane; used to synthesize spandex, PU resin, water-based PUD, CPU, TPU, etc., with good hydrolysis resistance Excellent physical and chemical properties such as high elasticity, wear resistance and low temperature resistance.
Hygroscopicity Solubility
Can be dissolved in alcohol, esters, ketones, aromatic hydrocarbons and chlorinated hydrocarbons. Insoluble in aliphatic hydrocarbons and water. As the molecular weight increases, the solubility will decrease.
PTMEG is hygroscopic. At room temperature, PTMEG can absorb up to 2wt% of water according to different molecular weights.
Packing
IN 200 KG STEEL DRUM / 16 MT 20′ FCL
Manufacturer
KOREA PTG CO., LTD. Korea PTG
M / 16 MT 20’ FCL
Manufacturer
KOREA PTG CO., LTD. Korea PTG