反相悬浮聚合法制备单宁螯合树脂及表征

Abstract

Abstract: Using black wattle tannin and paraformaldehyde in fluid-wax as organic dispersant, a spherical tannin-chelated resin was prepared through inverse-suspension polymerization. The condition of reaction was determined by means of orthognonal experiment.The optimal condition of synthesis was: m(tannins):m(paraformaldehyde) 12:1, reaction temperature 67℃, reaction time 3.5h, fluid-wax volume 65mL. The structure of the product was characterized by Fourier transform IR, XRD, TG, DSC and SEM. The adsorption mechanism of tannin-chelated resin toward Cr⁶⁺ was investigated.

Key words: inverse-suspension polymerization, tannin, chelated resin, adsorption mechanism, characterization

CLC Number:

TQ351.5
TQ94

ZHANG Li-ping;DU Jie. Preparation and Characterization of Tannin-chelated Resin through Inverse-suspension Polymerization[J]. , 2008, 28(2): 91-96.

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Preparation and Characterization of Tannin-chelated Resin through Inverse-suspension Polymerization

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