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

foaming_chemistry.png

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

melt_strength1a.png

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

The following CPST products use this foaming technology:

Contact Us

Phone:

+82)2-417-0413

Fax:

+82)2-417-0418

Creative Polymer Solutions Technology

+82)2-417-0413

South Korea, Seoul, Sincheon-dong, 10 Olympic-ro35ga-gil, A 511 Jamsil The-Sharp-Starpark 05510

©2017 by CPST