| abstract |
The invention discloses a preparation method of a novel pressure-resistant, antibacterial and superabsorbent resin, which comprises the following steps: neutralizing acrylic acid, distilled water and lye in an ice-water bath, adding bentonite modified by quaternary ammonium salt to make it evenly dispersed , to obtain a reaction solution; the reaction solution is heated to 80-98° C., then two kinds of cross-linking agents and initiators with different activities are added, rapidly stirred, and polymerized for 30-90 s to obtain a superabsorbent resin colloid; the obtained colloid is stirred Crushing, drying, pulverizing and sieving to obtain the semi-finished product of super absorbent resin, and the semi-finished product is subjected to surface cross-linking and adding antibacterial agent with the new surface cross-linking liquid to obtain the finished product of super absorbent resin. By modifying bentonite with quaternary ammonium salt and adding different cross-linking agents, novel surface cross-linking liquid and antibacterial agent, the prepared anti-pressure antibacterial SAP has high pressure absorption rate and excellent antibacterial performance. |