MOCA-HR | Aromatic diamine chain extender
MOCA-HR | Aromatic diamine chain extender
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  • MOCA-HR | Aromatic diamine chain extender
  • MOCA-HR | Aromatic diamine chain extender

MOCA-HR | Aromatic diamine chain extender


Product Description

This high temperature resistant grade of MOCA is mainly suitable for light-colored cast PU elastomer products, such as skateboard wheels, various rubber rollers, mold liners, cyclones, transmission belts, couplings, screens, sealing products, etc.

Product Details


Features and uses 

During the entire melting and standby process, MOCA liquid remains light yellow and transparent. Even if the temperature is as high as 150°C or it is repeatedly melted several times, the liquid color can remain stable. It is most suitable for various PU products cast by a casting machine. It can also be used for manual casting. Compared with ordinary MOCA, the polyurethane products obtained are lighter in color.

MOCA is a cost-effective chain extender or curing agent. Polyurethane elastomers with MOCA as a chain extender/curing agent are widely used in machinery, construction, transportation (cars/ships/aircrafts/railways/bridges, etc.), mining industry, electronic and electrical sealing and insulation (component encapsulation/glue/components/flexible circuit boards, etc.), sports facilities and other fields.

MOCA can also be used as a curing agent for epoxy resin.

 

Specification 

Appearance

Light yellow granules

Initial melting point  °C

≥102.0

Moisture %

≤0.15

Solid density (24℃)/ (g/cm3)

1.43-1.45

Density of molten liquid (107℃)/ (g/cm3)

1.24-1.28

Amine equivalent

131-136

Free amine %

<1.00

Light transmittance

≥97.0

Acetone insoluble matter %

<0.04

Roller

 

Packaging and storage

(1) 25kg, waterproof kraft paper bag lined with black plastic bag.

(2) 50kg, cardboard barrel lined with black plastic bag.

Store in a dry place away from light. Shelf life is 2 years. If stored beyond the shelf life, it can still be used after the main application indicators are tested and qualified.

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