韩国PTG ptemg650/1000/2000/3000聚四氢***醚

SALES SPECIFICATI*** 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&plu***n;20

650&plu***n;25

1000&plu***n;50

1400&plu***n;50

1800&plu***n;50

2000&plu***n;50

3000&plu***n;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&plu***n;50

220&plu***n;50

220&plu***n;50

220&plu***n;50

220&plu***n;50

220&plu***n;50

220&plu***n;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 Gr***ity
(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,aromatic and chlorinated hydrocarb***.
Insoluble in aliphatic hydrocarb*** and water. Has a tendency to decrease its solubility as
molecular weight increase.

Hygroscopicity

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