Abstract
A novel polypropylene strong acid cationic exchange fiber (SACEF) was prepared by sulphonation reaction of polypropylene graft styrene (PP-g-St) fiber, using 1,2-dichloroethane as swelling agent. Factors effected the adsorption capacity of SACEF synthesized from PP-g-St fiber, such as swelling time, grafting degree of PP-g-St, liquor ratio (mass of fiber vs. volume of the reaction reagent), reaction temperature, and sulfuric acid concentration were investigated. The results showed that the average adsorption capacity of SACEF was 4.42 mmol·g-1.
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