PVA pore structure an overview of properties:The structure of Polyvinyl Alcohol (PVA) originated in Germany. A compound of water soluble PVA acetalised with a catalyst. During the acetalising process, the pore forming agent is added. After a water soluble porous structure is made, the agent is then extracted. The sponge has a completely three dimensional, interconnected porous structure.
đang được dịch, vui lòng đợi..
