Castable Polyurethane elastomer supplier in China
Polyurethane Elastomer, Ipdi Polyurethane Elastomers, Castable Polyurethane Prepolymer manufacturer / supplier in China, offering Castable Polyurethane Prepolymer Ipdi System, Good Weatherability Polyurethane for Textile Coating, Best Non Stick Material for Cookware and so on.Send Inquiry
(1) Excellent wear resistance: wear resistance is the highest in all rubber. Laboratory test results show that the wear resistance of UR is 3~5 times of natural rubber, and the actual application is often up to about 10 times
(2) On the shore of A60 to shore A70 hardness in the range of high strength and good elasticity
(3) Good Buffer. the UR damping element can absorb the vibration energy of 10%~20% under room temperature, higher vibration frequency, greater energy absorption.
(4) Oil resistance and good chemical resistance.UR and non-polar mineral oil, the fuel oil (such as kerosene, gasoline) and machine oil (such as hydraulic oil, lubricating oil, lubricating oil etc) almost not affected by erosion, much better than the general rubber, comparable with nitrile rubber. The shortcoming is in alcohols, esters, ketones and aromatic hydrocarbons in swelling is larger.
(5) Higher friction coefficient, in general more than 0.5
(6) Low temperature resistance, ozone resistance, radiation resistance, electrical insulation, good adhesive properties
|Prepolymer||Appearance (25oC)||Colorless Transparent Liquid||Colorless Transparent Liquid||Colorless Transparent Liquid|
|Using Mixture Ratio (PHR)||100:100||100:100||100:100|
|Life in the Reaction Kettle||180~480||180~480||180~480|
|Physical Properties of Finished Products||Hardness (Shore A)||65±5||85±5||70±5D|
|Tensile Strength (MPa)||15.2||17.0||22.3|
|Tearing Strength (kN/m)||10||19||25|
|Elongation at Break(%)||170||130||110|
-The utility model is mainly used for the production of products which are not required to be changed, such as a lens, an instrument panel, and can also be used for dripping glue, making nameplate, labels, etc.
-The utility model can be used for manual operation, and is more suitable for gluing machine and pouring machine.
-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.
-The prepolymer should be stored at low temperature and dry place, not long time at higher temperatures (more than 75 degrees Celsius) heating.