Monday, September 22, 2014
   
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PTMEG

 

PTMEG

The product is commercially available as polymers of low average molecular weights, between 250 and 3000 daltons. In this form it is a white waxy solid that melts between 20 and 30 °C. The commercial product can be processed further into polymers with molecular weights of 40,000 and higher.

 

The main use of polytetrahydrofuran is to make elastic fibers such as spandex (elastan) for stretchable fabrics and for waterborne PU resins, or polyurethane resins. The latter are polyurethane prepolymers dissolved in solvent. They are used in the manufacture of artificial leather.

 

The polymer is also a starting material for thermoplastic polyurethane, thermoplastic polyesters, polyetheramide and cast polyurethane elastomers, used for instance in the wheels of roller skates and skateboards.

 

 

Product

Unit

PTMG-1000

PTMG-1800

PTMG-2000

Appearance

White waxy solid (or Colorless liquid)

Molecular Weigth

g/mol

9501050

17001900

19002100

Hydroxyl Value

mg KOH/g

106.9118.1

59.166

53.459.1

Color(APHA)

40

40

40

Acid Value

mg KOH/g

0.1

0.1

0.1

Water Content

%

0.025

0.025

0.025