EVA/TPU Shoe Material Foam Thick Plate Production Line

Description

Board production line layout diagram

Production process

Raw Material                    Extrusion             Solid Sheet               Foam Machines        Foamed Sheet

Application

                                                                         Shoe material midsole

 Foaming process

Foam type	Types of foaming agents	blowing agent	Product Application
Physically Foaming	Supercritical foaming of inert gas	CO2、N2	EVA、TPU、PET、PP
	Low boiling point liquid	C₄H₁₀、C₅H₁₂、HFCs	EPE、EPS，XPS , PU
Chemical Foaming	Organic azo compounds	AC	XPE、IXPE、PVC
	Inorganic carbonates	NaHCO₃	Rubber、PVC

Physically Foaming

It is the process of using physical methods to generate bubbles in the material with foaming agents, thereby achieving the foaming of the material. In this process, the foaming agent itself does not undergo chemical changes, but mainly generates gas through changes in its physical state, such as gas dissolution and precipitation, liquid vaporization, and phase transition of supercritical fluids.

Chemical Foaming

It relies on the foaming agent to undergo a chemical reaction at acertaintemperature or other conditions, producing gas and forming bubbles inside the material, thereby causing the material to foam. It is common for foaming agents to decompose upon heating, producing gases such as carbon dioxide and nitrogen.