韩国PTG PTMEG1000 聚醚多元醇

SALES SPECIFICATIONS AND PHYSICAL PROPERTIES 

PTMEG

250

650

1000

1400

1800

2000

3000

Appearance

A White waxy solid,and may become transparent liquid over a room temperature

Molecular
Weight(g/mol)

250±20

650±25

1000±50

1400±50

1800±50

2000±50

3000±50

Hydroxyl
Number
(mgKOH/g)

416～488

166～180

107～118

77.4～83.1

60.7～64.1

54.7～57.5

36.8～38.0

Color
(AHPA,MAX)

40

40

40

30

30

30

40

Water
(wt ppm,max)

200

150

150

150

150

150

150

Acid Number
(mgKOH/g,max)

0.05

0.05

0.05

0.05

0.05

0.05

0.05

Peroxide
(wt ppm,max)

5

5

5

5

5

5

5

Stabilizer
(BHT,wt.ppm)

220±50

220±50

220±50

220±50

220±50

220±50

220±50

lron
(wt ppm,max)

1

1

1

1

1

1

1

TYPICAL PHYSICAL PROPERTIES

Viscosity
(Cps,40℃）

46

203

270

660

1215

1300

1340

Specific Gravity
(40/4℃)

0.991

0.984

0.981

0.978

0.976

0.974

0.970

Melting Point
(℃)

-8～-4

23～25

25～26

27～29

29～31

30～32

31～33

Flash Point
(Open cup ,℃)

Over 280

Over 280

Over 280

Over 280

Over 280

Over 280

Over 280

Solubility

Readily soluble in alcohols,esters and ketones,aromaticandchlorinatedhydrocarbons.
Insoluble in aliphatic hydrocarbons and water. Has a tendency to decrease its solubility as
molecular weight increase.

Hygroscopicity

These PTMEG are all hygroscopic.At room temperature,PTMEG can absorb up to 2wt%
water depending on the molecular weight