•  On Aug, 31, 2019
•  admin

PVA Foaming is the important process for making a quality PVA sponge.  In earlier article, we had discussed the parameters which affected the foaming process, furthermore, we also talked about the importance for maintaining a uniform pore size and pore structure.  In this article, we are going to reveal the detrimental effect due to non-uniform […]

•  On Oct, 09, 2011
•  DST

Porous structure is the common structure for sponge product, perhaps porous structure also one of the important characteristic for PVA sponge.  Porosity is the basic properties of any sponge, this include PVA sponge roller. In most of the application, engineer need to understand the porosity ratio for any sponge roller in order to have the […]

•  On Sep, 26, 2011
•  DST

PVA Sponge Roller Pore Foaming Mechanism There are several foaming mechanism for PVA roller sponge, the commonly use technique is the foaming mechanism using starch as foaming agent.  Apart from using starch as foaming agent, there also have non-starch process and using gas injection. PVA Sponge Roller Forming Agents During the reaction stage, the starch […]