Polytetramethylene ether glycol PTMEG

Korea PTG PTMEG 250 Polytetrahydrofuran ether/polytetramethyl ether glycol PTMEG250 molecular weight

SPECIFICATION

ITEM	UNIT	SPECIFICATION
APPEARANCE	—	Liquid
MOLECULAR WEIGHT	G/MOL	210 +/- 25
HYDROXYL NO	MG KOH/G	477.4 ~ 606.5
ACID NO	MG KOH/G	MAX 0.05
MOISTURE CONTENT	WT PPM	MAX 300
COLOR	APHA	MAX 40
INHIBITOR (AS BHT)	WT PPM	220 +/- 50
Viscosity (Cps,40℃）	cps.40℃	46
Specific Gravity	40/4℃	0.991
Melting Point	℃	-8~-4
Flash Point	℃	>280

Solubility

Main raw material for synthetic polyurethane; used for synthesizing 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
Soluble 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
N 200 KG STEEL DRUM / 16 MT 20’ FCL

Manufacturer
KOREA PTG CO., LTD. Korea PTG