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Specialty polyether – medium molecular weight PET polyether

Short Description:

It is liquid at room temperature, which is convenient to use and process. Glass transition temperature of -80 ℃, with excellent low-temperature performance, the mechanical properties of the elastomer are close to those of PTMG.


Product Detail

FAQ

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Properties and Uses

It is liquid at room temperature, which is convenient to use and process. Glass transition temperature of -80 ℃, with excellent low-temperature performance, the mechanical properties of the elastomer are close to those of PTMG.

Mainly used in solid propellant formulations, with excellent low-temperature mechanical properties and a wide range of operating temperatures.

With good molecular flexibility, it can replace PTMG in flexible artificial leather and printing ink; it can be used in low-temperature-resistant adhesives, coatings, polyurethane elastomers and so on.

Technical specifications

Item

Specification

Di-functionality

Tri-functionality

Type I

Type II

Type III

Type IV

Number average molecular weight (Mn)

3500±350

4000±400

4500±450

5000±500

4500~7000

Hydroxyl value, mgKOH/g

23.0~37.6

20.1~32.6

17.9~29.2

16.2~26.4

19.5~45.0

Acid value, mgKOH/g

≤0.10

Water mass fraction, %

≤0.10


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