| abstract |
The invention discloses a preparation method of a hydrophilic polymer modified polyurethane foam plastic carrier, which comprises the following steps: step 1) cutting polyurethane soft foam into pieces; step 2) preparing starch aqueous solution and carboxymethyl fiber with appropriate concentration Sodium sodium solution, N, N-dimethylformamide solution of polysuccinimide; step 3) immerse polyurethane foam in aqueous starch solution, sodium carboxymethylcellulose solution, N of polysuccinimide , N-dimethylformamide solution, then moved to the cross-linking agent aqueous solution, heated; Step 4) Take out the foam and rinse and dry. The invention has the advantages of simple process and convenient operation, and obtains a cost-effective microbial carrier for sewage treatment after modification. |