INTRODUCTION OF PVA Foam

      Medical/civil grade macroporous/microporous PVA sponge: polyvinyl alcohol medical grade microporous sponge is a kind of polymer material with excellent liquid absorption performance and extremely soft surface when in contact with the human body. Its excellent liquid absorption performance is not only reflected in the faster liquid absorption rate, but also reflected in its superior liquid absorption ratio. In general, one gram of PAV sponges can absorb more than seven times their own body weight. Therefore, this kind of material is used to replace absorbent cotton and nonfat gauze in modern surgery, and is widely used in international clinical surgery.



     Polyvinyl alcohol medical grade macroporous sponge has excellent liquid absorption performance, high opening rate, high strength, and extremely soft surface when in contact with human body, which is widely used in clinical trauma surgery, especially in the field of negative pressure drainage. Waste macroporous sponges can be completely degraded naturally and will not cause pollution problems to the environment. In general, one gram of PAV macroporous sponge without additives can absorb body fluids equivalent to more than nine times its own weight. This kind of material is used to replace absorbent cotton and absorbent gauze in surgery, and can solve the problem that absorbent cotton or absorbent gauze needs to be constantly replaced in clinical surgery.




Physical Properies Spec
01 Foaming rate > 180%
The porosity was > 82.6%
02 Water absorption ratio > 650%
03 Wetting Rate > 0.52g/cm3.s
04 Tensile strength > 650KPa under wetting condition
05 Water absorption expansion rate < 30%
06 Compressive strength > 66KPa under wetting condition
07 Average diameter of the hole (adjustable) > 0.08-0.7mm