Biology base polymer aerogel oil absorption material and preparation method thereof

Abstract

The invention discloses a biology base polymer aerogel oil absorption material. The oil absorption material is prepared by the following steps: at first, crosslinking biology base polymers by a crosslinking agent, to obtain a precursor liquid, then freeze-drying the precursor liquid to obtain aerogel, and finally grafting silane onto the aerogel surface to obtain the hydrophobic biology base polymer aerogel oil absorption material. The density of the oil absorption material is 3.8 to 23.1 kg / m3. The water contact angle is at least 117.8 degrees. The adsorption capacities on gasoline, paraffin oil, chloroform, and crude oil are 30.5-109.0 g / g, 33.2-131.2 g / g, 58.2-163.0 g / g, and 24.7-95.8 g / g. After 50 times of gasoline adsorption-extrusion circulation, the retention rate of adsorption capacity is 43 to 99%. The disclosed aerogel oil absorption material has the advantages of large oil absorption capacity and high oil absorption efficiency. Moreover, the oil absorption material can be repeatedly used by simply extruding the oil absorption material, while a high retention rate of adsorption capacity can be maintained. At the same time, the raw material sources are wide, the raw materials are cheap and easily available, the preparation is simple, the technology is matured, the method is environment-friendly, and the requirements of sustainable development can be met.

Description

technical field [0001] The invention belongs to the technical field of polymer airgel oil-absorbing material and its preparation, and in particular relates to a bio-based polymer airgel oil-absorbing material and a preparation method thereof. Background technique [0002] In recent years, with the acceleration of industrialization, the problems of oil pollutants and oil spills in water bodies have become increasingly prominent. According to analysis, 40% of the oil pollution in the water body comes from oil tankers and shipping such as oil tankers, oil tank leakage accidents, etc., and 36% comes from urban sewage and industrial wastewater discharge. Waste oil has become a serious pollution source of seawater and river pollution, aggravating the process of ecological environment deterioration, and because of its huge and persistent damage, it has become a threat to human life. In order to reduce oil pollution, although the most fundamental way is to reduce accidents and stre...

AI Technical Summary

Problems solved by technology

Although the base material used in this oil-absorbing material is cellulose, which has a wide range of renewable sources and is biodegradable, which is in line with sustainable development, but it has a low adsorption capacity for oil quality, and it absorbs oil and water at the same time, so it does not have oil-water selectivity.

Images