| abstract |
The present invention discloses a polyvinyl alcohol composition, as well as a preparation method and use thereof, wherein raw materials include the following components: 60-90 parts of polyvinyl alcohol; 0.1-3 parts of glutaraldehyde; and the polyvinyl alcohol composition is made by mixing the polyvinyl alcohol in a molten state with the glutaraldehyde in an acidic environment. The present invention has the following advantages and effects: the polyvinyl alcohol composition includes the polyvinyl alcohol, the glutaraldehyde, acid, urea, etc., the glutaraldehyde undergoes cross-linking reaction with the polyvinyl alcohol, and a decomposition temperature of the polyvinyl alcohol composition is increased, while a melting point of the polyethylene alcohol composition is decreased, and the processibility of the polyvinyl alcohol composition is enhanced; a polyvinyl alcohol medical catheter made from the polyvinyl alcohol composition has very good biocompatibility, and is convenient for clinical applications by doctors; furthermore, the polyvinyl alcohol composition can also be used to make various items such as sealing gaskets, degradable flowerpots, and carrying bags, and achieves the effects of the polyvinyl alcohol composition such as low melting temperature, convenience in melting and processing, very good biocompatibility, and broad application range. |