+82)2-417-0413
Foaming Technologies from CPST
How CPST products modify EVA foam
• CPST has core technologies to modify various EVA foam systems to provide performance of polymer matrix or surface polarity and morphology
• Patented technologies
• Introducing nano-fillers to maximize activity of functional groups through reactive extrusion
• Homogeneous nucleation & excellent compatibility
• Maintain good physical properties at higher expansion foams
• Many commercialized products for EVA foam in footwear applications
Core Technology of CPST modifiers
• Organic-inorganic hybrid between nano inorganic particle and polar functional resins thru reactive extrusion to attain ultimate physical properties & stable foam structure
• Finer cell via homogenous nucleation and higher melting strength with hydroxy groups from both nano particle and functional specialty polymers
Chemistry of CPST Modifiers
Homogenous Nucleation
Better homogenous nucleation (miscibility of additives) provides a higher number of nucleation sites, thus a finer cell structure with higher melt strength at high expansion ratios
Water + Oil
Water + Oil After shaking⇒ Separation
Water + Oil + Soap
(Ecomax function)
After shaking ⇒ Homogenous
Melt strength
• Melt strength is one of the key properties for making high performance
foam with a closed cell structure at desired expansion ratios
• Similar concept : Bubble structure of soap solution
CPST products can provide:
Cost Savings
- EVA replacement
- 10 ~ 35% saving
Environmental
friendliness
- Reduction of oil-based synthetic materials including EVA
- Bio-degradable foam
Performance improvement
- Light weight(Lower density)
- Split tear
- Abrasion
- Compression set
Contact Us
Phone:
+82)2-417-0413
Fax:
+82)2-417-0418