| 摘要 |
A PVA sponge with vegetal starch and bamboo charcoal includes at least one Polyester fiber substrate having through pores inside thereof, and a PVA foaming material having vegetal starch and bamboo charcoal therein. The substrate is covered by the PVA foaming material and will have acetalization by formaldehyde. The substrate is placed into a container with a predetermined shape and the PVA foaming material mixed with formaldehyde and hydrochloric is poured into the container. The colloid PVA and formaldehyde will have acetalization so that the PVA foaming material will cover among the structure of the substrate. A heating-up forming process is carried out when the PVA foaming material is full of the container. The added hydrochloric is an accelerator to accelerate the reaction.
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