Special Properties Polyurethane Prepolymer High Hardness Type
|FOB Price:||US $1.1-99.9 / kg|
|Min. Order:||1 kg|
|Min. Order||FOB Price|
|1 kg||US $1.1-99.9/ kg|
|Payment Terms:||L/C, T/T, D/P, Western Union, Paypal, Money Gram, D/A|
- Model NO.: HHN-810 & HHN-811 & HHN-812
- Molecular Principal Chain: Heterochain Polymer
- Trademark: sinograce
- Origin: China Anhui
- Synthetic Resin: Unsaturated Polyester Resin
- Color: Viscous Liquid
- Transport Package: According to The Customer Demand
- HS Code: 3921199000
Special properties polyurethane prepolymer High hardness type
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.
|Appearance (25ºC)||viscous liquid||viscous liquid||viscous liquid|
|Using Mixture Ratio(PHR)||23.0~26.0||23.0~26.0||26.0~29.0|
|Life in the Reaction Kettle (75~78ºC/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|
-Mainly used in the production of high hardness polyurethane elastomer products, such as a variety of wheels, mechanical parts, etc.
-Can be used for manual, more suitable for the operation of the casting machine, chain extender is MOCA.
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.