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Croda’s Ionphase U2 uses a co - continuous ionic phase for POM and PS static management. Anti - static Principle Builds a 3D ionic network in substrates, rapidly reducing resistivity for static control
Long-lasting, permanent anti-static performance; excellent humidity resistance
Easy processing; outstanding thermal stability (resistant to high-temperature manufacturing)
Recyclable formulation; maintains optimal substrate mechanical properties
No surface defects (no fogging/migration); corrosion-resistant
Uniform conductive dispersion; consistent static dissipation across the material
Ideal for POM (Polyoxymethylene) and PS (Polystyrene) substrates
Suitable for injection-molded parts, extruded profiles, and electronic components requiring permanent anti-static protection
Model | Ionphase U2 |
Volume Resistivity | 1E5 |
Density | 1.14 kg/m³ |
Melting Point | 146 - 167℃ |
Q1: What types of polymers is Croda Ionphase U2 compatible with?
A: Ionphase U2 is designed for use in a broad range of thermoplastics, including polyolefins (e.g., PP and PE), engineering plastics such as polyesters and polycarbonates, and certain styrenic systems. Compatibility should be confirmed via preliminary compatibility and performance testing in the target formulation.
Q2: How does Ionphase U2 deliver antistatic performance in finished parts?
A: Ionphase U2 functions through a migratory mechanism—its active components gradually migrate to the polymer surface during processing and subsequent aging, forming a thin, conductive layer that dissipates static charge. Performance develops over time and is influenced by humidity, temperature, and polymer morphology.
Q3: Is Ionphase U2 suitable for applications requiring low extractables or high purity?
A: Yes—Ionphase U2 is formulated to minimize volatile content and exhibits low extractability in non-polar media. It is widely selected for applications where surface integrity, clarity, and minimal blooming are critical, such as in packaging films and technical components.
Q4: Can Ionphase U2 be used in combination with other additives like stabilizers or fillers?
A: Ionphase U2 is generally compatible with common polymer additives including antioxidants, UV stabilizers, and mineral fillers. However, interactions with highly polar additives or acid-scavenging systems (e.g., certain calcium-based stabilizers) may affect migration kinetics and should be evaluated empirically in the final formulation.
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