Special properties polyurethane prepolymer High hardness type

  • Brand:

    sinograce
  • Item NO. :

    HHN-810,HHN-811,HHN-
  • Payment:

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

    China Anhui
  • Color:

    viscous liquid
  • Shipping Port:

    Shanghai And Other Ports
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Product Detail

Description

Special properties polyurethane prepolymer High hardness type


Key features

Material prepolymer viscosity is low, easy to operate.

After the molding material has high hardness and elasticity, toughness is good, not easy to crack.

In special occasions can be replaced by casting nylon and other high hardness materials.


Typical properties

High hardness

HHN-810

HHN-811

HHN-812

 

 

 

 

Prepolymer

Appearance (25℃)

viscous liquid

viscous liquid

viscous liquid

NCO Content(%)

8.0~9.0

8.0~9.0

9.0~10.0

Using Mixture Ratio(PHR)

23.0~26.0

23.0~26.0

26.0~29.0

Life in the Reaction Kettle (75~78℃/min)

1~2

2~3

3~5

 

 

Physical Properties of Finished Products

Hardness (Shore D)

75±5

60±5

75±5

Tensile Strength (MPa)

37.7

57.5

63.4

Tearing Strength (kN/m)

87.9

187.1

197.2

Elongation at Break (%)

402

331

210

Akron Abrasion (cm3/1.61km)

0.1

0.05

0.05


Application

-Mainly used in the production of high hardness polyurethane elastomer products, such as a variety of wheels, mechanical parts, etc.


Usage method

-Can be used for manual, more suitable for the operation of the casting machine, chain extender is MOCA.


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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      Special properties polyurethane prepolymer High hardness type
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