SCF supercritical fluid - Sustainable, Clean, Odorless

ETPU supercritical SCF physical foam

SCF supercritical fluid

Sustainable, Clean, Odorless

When the pressure and temperature of the gas above its critical point, the supercritical fluid characteristics will appear, which has properties between those of gas and liquid, and can be used as a good physical foaming agent.

▪️Injection foaming
In injection machine, the SCF blowing agent is added and mixed with polymer, and then it is injected into the mold for foaming.

▪️Autoclave foaming
First shoot TPU is injectied to a unfoamed midsole, then put the unfoamed midsole into a high-pressure autoclave Relieve pressure and foam into a foamed midsole, and then put it into a hot and cold press machine to shape.

▪️TPU products used in the foaming field:

1. 1085AU-BF: It has a good mechanical strength and a relatively high cost performance.

2. 3085AU-BF: It is made of polyether TPU, which has excellent hydrolysis resistance and good resilience (>60%).

3. 7385A-BF: It is made of aliphatic polyether TPU, which has excellent hydrolysis resistance, good resilience (>60%) , and non-yellowing properties.

4.3090AU-BFL: It has excellent cushioning properties and can be used in energy-absorbing products such as protective gear and safety helmets.