Time：2025-08-18
RTPO-E supercritical insole materials arecellular foam materials made by forming numerous microcellular within through supercritical fluid foamingtechnology. They are suitable for cold mold insoles,diecutting insoles,and insole fillers.
RTPO-E03 elastomeric foam material is made using olefin block copolymer (OBC), ethylene-octene copolymer (POE), and ethylene-vinyl acetate (EVA) as the base materials. By employing pure supercritical fluid technology, a polymer with internal pores is cleverly created to produce a high-performance, environmentally friendly supercritical foam material.
| Ingredients | Content | CAS Number |
|---|---|---|
| EVA | 50-80% | 9010-79-1 |
| OBC | 20-60% | 24937-78-8 |
| POE | 5-50% | 63148-62-9 |
Good resilience and mechanical properties
High bonding ability and easy processing
Sulfur-free, amine-free, no chemical crosslinker, no chemical foaming agent
| Property/Name | Unit | Original | Post - cold | Testing standards |
|---|---|---|---|---|
| Density | (g/cm³) | 0.059±0.02 | 0.13±0.02 | GB/T 6343 |
| Hardness | Shore C | 25±3 | 33±3 | HG/T 2489 |
| Tensile strength | MPa | ≥1.0 | ≥1.3 | GB/T 6344 - 2008 |
| Elongation at bleak | % | ≥150 | ≥200 | GB/T 6344 - 2008 |
| Tear strength | kN/m | ≥1.0 | ≥1.5 | GB/T 10808 - 2006 |
| Rebound resilience | % | ≥60 | ≥65 | GB/T 6670(A) |
| Compression Set | % | ≤30 | ≤25 | 50%, 24h, 0.5h@45℃ GB/T 6669 Ct = (T0 - Tf)/T0 * 50% |
| Shrinkage test | % | ≤7.0 | ≤5.0 | GB/T 8811 70℃, 1h (10mm) |
