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Aromatic Diamine Chain Extenders P-1000 CAS NO.: 54667-43-5

Gklink P-1000、P-650 and P-250 serials are aromatic diamine chain extenders or curatives containing flexible ether segment and ester group.
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Chemical Name: Polytetramethyleneoxide-di-p-aminobenzoate.

CAS No.:54667-43-5


FEATURES & APPLICATIONS

GKlink P-1000、P-650 and P-250 serials are aromatic diamine chain extenders or curatives containing flexible ether segment and ester group. The molecular structures of GKlink P series are similar with the GKlink 740M. 740M was approved to be used in the PU articles that directly contact with food and drug by the FDA. GKlink P series are also low-toxic products. The polyurethane elastomers cured with P series have excellent tensile strength, tear strength, abrasion resistance, heat resistance, heat-aging resistance and adhesion.

As viscous liquids, GKlink P-1000 and P-650 could be mixed with TDI or MDI based prepolymer at room temperature for casting and curing. It is especially suitable for onsite processing due to its easy workability. Their application includes casting elastomers, coatings, adhesives, sealants and sprayings. The room temperature vulcanization with GKlink P-1000 or P-650 not only provides a simple process, but also the finished product has better performance than heat-curing MDI/diol system. Polyurethane elastomer formulated with GKlink P-1000 or P-650 has a low shrinkage ratio.


PACKAGING

20kg or 50kg net weight in galvanized iron drum or plastic drum.


STORAGE

This product should be stored in a ventilated and dry place. Keep it away from sunlight.

Shelf life of this product is 1 year. If stored over shelf life, it can still be used when the main application properties be qualified by inspecting.


Product

P-1000

P-650

P-250

Appearance

Pale yellow liquid or cream

Pale yellow to amber liquid

Waxy solid

Viscosity, mPa·s

3000~4800(30℃)

3600~4800(30℃)

≤300(85℃)

Relative density(20℃)

1.01~1.06

1.04~1.10

1.00~1.05

Total equivalent weight

600~625

395~415

220~250

Freezing point, ℃

18~21

13~17

56~60

Water content, %

≤0.10

≤0.10

≤0.10


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