Trap effect type thermo-sensitive biomass-based functional material as well as preparation method and application thereof

Abstract

The invention discloses a trap effect type thermo-sensitive biomass-based functional material as well as a preparation method and application thereof. The material inner layer takes cellulose as a matrix, poly (N-isopropylacrylamide) as a temperature-sensitive reagent, polyethyleneimine as a functional reagent and epoxy chloropropane as a cross-linking agent; branched polyethyleneimine is used as a functional reagent of an outer layer, epoxypropane is used as an amine functionalization reagent, and an outer layer spinning solution with the ratio of secondary ammonia to tertiary ammonia being (5-7): (93-95) is obtained; and depositing a layer of spinning fibers on the surface of the inner layer through spinning to prepare the trap effect type thermo-sensitive biomass-based functional material. Rich tertiary amino groups on the outer layer of the material, such as a wax layer of a blade, form a trap fence to intercept and capture SO2 in mixed gas; rich primary and secondary amino groups such as chloroplast of leaves in the inner layer form traps to capture CO2. The material has excellent SO2 poisoning resistance, and the adsorption capacity is greater than 6 mmol / g after the material is regenerated 500 times at 60 DEG C.

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