Hydrophobic modification method of melamine sponge and product and application thereof

Abstract

The invention discloses a hydrophobic modification method of melamine sponge and a product and application thereof, and the hydrophobic modification method comprises the following steps: immersing themelamine sponge in a sodium alginate solution, taking out, freeze-drying, and performing zirconium ion crosslinking to obtain modified melamine sponge. The hydrophobic modification method of the melamine sponge is simple, inexpensive, environmentally friendly, and easy to operate and can be mass-produced; the modified melamine sponge has high lipophilic-hydrophobic property and can be used for oil-water separation application. The modified melamine sponge can be used as an oil adsorbent or as an oil-water separation material capable of absorbing water surface (bottom) oil. The modified melamine sponge has good mechanical properties; modified sodium alginate sponge has high plasticity, can be prepared into the modified melamine sponge of different sizes and shapes as needed, can also be coated on other porous carriers such as nylon filter nets, and is suitable for a variety of occasions.

Description

technical field [0001] The invention belongs to the technical field of adsorption and separation materials, and in particular relates to a hydrophobic modification method of melamine sponge and its product and application. Background technique [0002] Straw, activated carbon, zeolite, and cotton fibers are often used as oil-absorbing materials, but their low adsorption capacity and difficult separation make them difficult to apply on a large scale; direct incineration of oil slicks will lead to waste of resources and secondary environmental pollution. Therefore, how to efficiently separate the oil-water mixture is one of the research focuses of scientific researchers. At present, melamine sponge is often used as an oil-absorbing material and has been widely used due to its low price, easy availability, superior mechanical properties, and high porosity. However, melamine sponges are difficult to be used for oil-water separation efficiently because they are hydrophilic and l...

AI Technical Summary

Problems solved by technology

However, melamine sponges are difficult to be used for oil-water separation efficiently because they are hydrophilic and lipophilic. Melamine sponges are often hydrophobically modified by materials such as graphene, polysiloxane, organosiloxane, and metal-organic framework materials.

However, in the prior art, these modifiers are expensive and toxic and the synthesis process is complicated, which is not conducive to large-scale production and application

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