Polyurethane prepolymer NDI, PPDI System

  • Brand:

    sinograce
  • Item NO. :

    NP-240、NP-245
  • Payment:

    L/C、D/A、D/P、T/T、MoneyGram、Paypal Other.
  • Product Origin:

    China Anhui
  • Color:

    Waxy solid
  • Shipping Port:

    Shanghai And Other Ports
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Product Detail

 

Description

Polyurethane prepolymer NDI, PPDI system


Key features

The utility model has the advantages of high dynamic mechanical property, especially heat resistance, and can work in the environment of 120 DEG C for a long time.


Typical properties

NDIPPDI system

NP-240

NP-245

Prepolymer

Appearance (25)

Waxy solid

Waxy solid

NCO Content (%)

3.6~4.2

3.6~4.2

Using Mixture Ratio (PHR)

3.7~4.3

3.7~4.3

Life in the Reaction Kettle

3~5

3~5

Physical Properties of Finished Products

Hardness (Shore A)

90±5

90±5

Tensile Strength (MPa)

53.5

57.1

Tearing Strength (kN/m)

129.5

131.7

Elongation at Break (%)

523

551

Akron Abrasion (cm3/1.61km)

0.01

0.01

Application

-The utility model is mainly used for producing products with the characteristics of heat resistance, high abrasion resistance, high bearing capacity, low internal heat generation, etc.


Usage method

-Can be used for manual operation, more suitable for the operation of the casting machine, chain extender is BDO or HQEE, etc.


Attention

The prepolymer should be stored at low temperature and dry place, avoid the moisture and moisture when used

After the opening of the prepolymer should be used up as soon as possible, if not exhausted with nitrogen seal.

The storage period of unopened prepolymer is three months.

If you want to add color paste or other materials, keep the water content below 0.1%, and consider the compatibility of additives.

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      Products :

      Polyurethane prepolymer NDI, PPDI System
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