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PREPARATION METHOD OF SUPER-HYDROPHOBIC LIGNIN SPONGE WITH OIL-WATER SEPARATION FUNCTION
PREPARATION METHOD OF SUPER-HYDROPHOBIC LIGNIN SPONGE WITH OIL-WATER SEPARATION FUNCTION
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机译：具有油水分离功能的超疏水木质素海绵的制备方法
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#$%^&*AU2020101036A420200723.pdf#####ABSTRACT The present invention discloses a preparation method of a super-hydrophobic lignin sponge with an oil-water separation function, and relates to the technical field of chemical engineering 5 and polymeric functional materials; dissolving alkali lignin in a polar solvent, slowly adding an initiator to an obtained alkali lignin solution, heating to 90-180°C under protection of nitrogen, slowly adding long-chain alkane methoxysilane to react to obtain a modified alkali lignin solution, settling the modified alkali lignin solution to separate out an alkali lignin modifier, drying for later use, dissolving the alkali lignin modifier in the polar solvent again to obtain a 0 solution, soaking a sponge in the solution, taking out the sponge and drying, to obtain super-hydrophobic lignin sponge; a modified lignin-processed sponge is utilized to form a super-hydrophobic sponge, and the super-hydrophobic sponge has strong selectivity, and strong oil absorption capacity, adopts raw materials which are cheap and rich in source, belongs to cyclic comprehensive application of biomass raw materials, and thus has good application 5 prospect and economical benefit. 12
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