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Preparation method of porous hydrophobic oleophylic sponge

A hydrophobic and lipophilic sponge technology, which is applied in the field of preparation of porous hydrophobic and lipophilic sponges, can solve the problems of difficult large-scale application, complicated processes, etc., and achieves the effects of good repeatability, simple and easy operation process, and easy industrialized implementation.

Inactive Publication Date: 2014-11-26
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process is quite complicated and requires the use of various expensive reagents, so it is difficult to apply to actual industry and life on a large scale

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Take a piece of melamine foam in a porcelain boat and place it in a heating furnace. 2 Carry out calcination under the conditions of 3℃ / min, raise the temperature to 300℃, keep it for 0.5 h, and collect the product after natural cooling to get the porous sponge sample.

[0025] The porous hydrophobic and lipophilic sponge prepared according to Example 1 was tested by scanning electron microscopy ( figure 2 ), the skeleton structure of the sample can be seen, indicating its porous structure.

[0026] Photograph of the porous hydrophobic and lipophilic sponge prepared according to Example 1 adsorbing the water surface and the underwater organic layer ( image 3 a and b):

[0027] The bottle in picture a is a mixed phase of water and oil, the upper layer is yellow oil layer, and the lower layer is colorless and transparent water. Put the porous hydrophobic and lipophilic sponge into the bottle, you can see that the sponge can selectively and completely adsorb the upper layer o...

Embodiment 2

[0031] Take a piece of polyurethane foam in a porcelain boat, place it in a heating furnace, and calcine under the condition of introducing Ar gas, raise it to 150°C at a heating rate of 30°C / min, keep it for 10 hours, and collect the product after natural cooling. A porous sponge-like sample can be obtained.

Embodiment 3

[0033] Take a piece of melamine foam in a porcelain boat and place it in a heating furnace. 2 Carry out calcination under the conditions of 10℃ / min, raise the temperature to 400℃, keep it for 5 hours, and collect the product after natural cooling, then the porous sponge sample can be obtained.

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PUM

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Abstract

The invention provides a preparation method of a porous hydrophobic oleophylic sponge. The method comprises the steps: taking polymer foams, placing in a heating furnace, under the protection of inert gas, heating up to 150-1000 DEG C, calcining for 0.2-10 h, and thus obtaining the porous hydrophobic oleophylic sponge. The porous hydrophobic oleophylic sponge obtained by the method adsorbs oil, does not adsorb water, can adsorb the oil or organic matters which are hundreds of times heavier than the sponge, and has good toughness; and after the oil or organic matters are adsorbed, the adsorbed oil or organic matters can be removed through extrusion, distillation, burning and other methods, and thus the porous hydrophobic oleophylic sponge can be used repeatedly. The preparation method is simple, needs no complicated chemical reactions or material preparation processes, and has the advantages of convenient operation, good repeatability and easily industrialized implementation. The porous oil-adsorption sponge has the characteristics of large specific surface area, low density, good flexibility, hydrophobic oleophylic performance and the like, can be used for oil-water separation, and has good application prospects in the fields of wastewater treatment, adsorption of leaking crude oil or organic matters and the like.

Description

Technical field [0001] The invention belongs to the technical field of preparation of functional adsorption materials, in particular to a preparation method of a porous hydrophobic and lipophilic sponge. Background technique [0002] With the rapid development of social economy, the transportation of oil and organic reagents has also increased rapidly, which has led to frequent leakage of oil and organic chemicals. These leakage events often cause serious environmental pollution and ecological disasters, as well as huge economic losses. An effective way to deal with such accidents is to use various adsorption materials to transfer or recover the leaked oil and organic chemicals. Commonly used adsorption materials are natural inorganic minerals such as zeolite, perlite, sepiolite, etc. However, such minerals have few sources and are not easy to recycle and reuse. Another commonly used absorbent material is the use of plant fibers, cotton wool products, etc., but their adsorption...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/36C08L61/28C08L75/04
Inventor 朱国兴奚春燕沈小平
Owner JIANGSU UNIV
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