Medium and high-density PU Resin for shoe sole with the upper
Characteristic: Medium and low hardness, medium density and feel good
Application: Applicable to the production of soles with the upper of children shoes and sandals
Typical properties of PU Resin
|Name of products||Appearance||Viscosity（Pa·s/50℃）||Density（g/cm3/40℃）||Package（kg）|
|ZG-P-5050||White or pale yellow, liquid, no foreign material||0.50-0.80||1.16-1.20||18|
|ZG-I-5002||Transparent liquid, no foreign material||0.20-0.40||1.18-1.20||20|
Reference shipments ratio: A/B=30/25 (barrel)
Catalysts and auxiliary agents:
Note: corresponding adjustment should be made to the addition of auxiliary agent at different areas, different environment and different production conditions.
Molding conditions & physical properties:
|Reactivity||Technical index||Test item||Reference physical properties|
|比Reference ratioP+C/I||100/73-77||Molded density of sole（g/cm3）||0.45~0.50|
|Using temperature（℃）||material: 45-50; B material:38-42||Hardness (type A)||38~46|
|Cream time（s）||7~9||Tensile strength（MPa）||6.0~8.0|
|Metal mold temperature（℃）||45~55||NBS abrasion resistance（％）||≥10%|
|Demould time（min）||3.0~5.0||Free foam density（g/cm3）||0.23~0.28|
|mm)Folding endurance (room temperature)(40,000 gap length mm)||＜8|
Matching ratio is based on the optimal matching value which will vary with the category and additive amount of paint additives added.
Free foam density will vary with the seasons (temperature, humidity).
Stripping time will be extended with the increase of the thickness of moldings.
Folding endurance conditions: bending angle is 90 degrees and the frequency is 80 times / min * 40 thousand times
Data listed above is just for reference. The specific data is subjected to the practical operation. If other physical properties are required, please contact us.