Molecular Principal Chain: Heterochain Polymer
Appearance: Waxy Solid
Using Mixture Ratio (Phr): 3.7~4.3
Hardness (Shore a): 85-95
Tearing Strength (Kn/M): 129.5/131.7
Akron Abrasion(Cm3/1.61km): 0.01
Transport Package: According to The Customer Demand
HS Code: 3921199000
Synthetic Resin: Unsaturated Polyester Resin
Nco Content(%): 3.6~4.2
Life in The Reaction Kettle: 3~5
Tensile Strength (MPa): 53.5/57.1
Elongation at Break(%): 523/551
-Polyurethane prepolymer NDI, PPDI system
-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.
|Prepolymer||Appearance (25oC)||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|
-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.
-Can be used for manual operation, more suitable for the operation of the casting machine, chain extender is BDO or HQEE, etc.
-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.