Preparation method of oleophylic and hydrophobic water hyacinth cellulose aerogel

Abstract

The invention discloses a preparation method of oleophylic and hydrophobic water hyacinth cellulose aerogel. Firstly, cellulose extracted from water hyacinth plants is prepared into a 0.50% by weight of cellulose solution, a PAE papermaking wet-strength agent is added, the mixture is frozen at the temperature of -15 DEG C for 24 hours after even mixing, then the frozen and formed sample undergoes freeze-drying at the temperature of -40 DEG C for 48 hours to obtain the cellulose aerogel; the dried cellulose aerogel is put in a drying oven of 105 DEG C for reaction for 3 hours, so that the cellulose and PAE produce crosslinking to enhance the strength of the cellulose aerogel; finally, the cellulose aerogel is subjected to hydrophobic modifation. The cellulose aerogel prepared by utilizing the water hyacinth cellulose as the raw material and utilizing the PAE papermaking wet-strength agent as a crosslinking agent has superior oil absorption capacity and meanwhile has good resilience, the usage number of the cellulose aerogel is increased, so that the cellulose aerogel has a good practical application value in remediation of an oil-polluted water body.

Description

technical field [0001] The invention relates to a preparation method of a three-dimensional network porous structure material, in particular to a preparation method of a cellulose airgel material, which is applied in the fields of adsorption material preparation technology and green recycling of biological resources. Background technique [0002] During the exploitation, refining, storage, transportation and use of petroleum and its products, various accidents have caused the pollution of offshore and coastline water bodies. If the leaked oil is not recovered in time, it will cause great harm to the surrounding environment and human health. At present, organic synthetic materials such as polypropylene fibers, polyurethane foams, and alkylethylene polymers are the most widely used oil-absorbing materials on the market. Although organic synthetic materials have good lipophilic properties, such materials are not easy to biodegrade, thus causing secondary pollution to the envir...

AI Technical Summary

Problems solved by technology

However, at present, the preparation technology of oil-absorbing materials using plants as raw materials is relatively expensive and the preparation method is complicated, which cannot be applied on a large scale and cannot meet the needs of mass production of high-quality oil-absorbing materials.

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