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Lipophilic polyurethane sponge and preparation method thereof

A polyurethane sponge, lipophilic technology, applied in chemical instruments and methods, other chemical processes, general water supply saving and other directions, can solve the problems of high cost, human health hazards, threats to the survival of marine organisms, etc., to achieve an increase in oil absorption rate and low price. Effect

Active Publication Date: 2015-06-24
SHANDONG OCEAN PIONEER NEW MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this treatment process are: the oil skimmer can only deal with thicker oil layers, and its use is limited when the oil layer is thinner; on-site incineration is an extensive treatment method, which aggravates the pollution to the environment; Spilled oil is dispersed into seawater, and then removed by natural physical and chemical processes (such as volatilization, dispersion, sedimentation, microbial degradation, ingestion by marine animals, etc.), its treatment efficiency is low and it seriously threatens the survival of marine organisms; microbial degradation relies on microbial metabolism Oily substances, but microbiota have an impact on marine ecology
However, when used in the treatment of offshore oil spills, the low cross-linked polymer has the following disadvantages: (1) The cross-linked network structure limits the oil absorption rate; The absorption capacity is limited; (3) The cost of this type of material is high, and it is easy to be damaged after being squeezed after oil absorption and swelling, and the reuse rate is low
However, chromic acid has strong oxidative corrosion and carcinogenicity, which is very harmful to human health; in addition, the cost of fluorine-containing siloxane is relatively high

Method used

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  • Lipophilic polyurethane sponge and preparation method thereof
  • Lipophilic polyurethane sponge and preparation method thereof
  • Lipophilic polyurethane sponge and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] In this embodiment, a lipophilic polyurethane sponge is used, wherein the sponge substrate is exactly the same as the sponge selected in Comparative Example 1, and is a porous polyurethane sponge with an average pore diameter of 300 μm, and the substrate is grafted with lipophilic Hydrophobic C-C long chain group. The C-C long chain is polyurethane and the acid chloride compound CH containing C-C long chain 3 (CH 2 ) 16 COCl reaction, the amino, hydroxyl and -C(O)Cl functional groups in polyurethane are grafted through chemical bonds.

[0045] The preparation method of above-mentioned lipophilic polyurethane sponge is as follows:

[0046] (1) exactly the same as step (1) in comparative example 1;

[0047] (2) Measure 100ml of anhydrous dioxane into a 250ml beaker, and weigh 150mg of NaHCO 3 into the beaker, and then add 3ml of acid chloride CH 3 (CH 2 ) 16 COCl, after mixing uniformly, an acid chloride solution is obtained;

[0048] (3) Soak the sponge treated ...

Embodiment 2

[0054] The structure of the lipophilic polyurethane sponge used in this example is basically the same as that in Example 1, except that the sponge base is a polyurethane sponge with an average pore diameter of 600 μm.

[0055] The preparation method of the above-mentioned lipophilic polyurethane sponge is basically the same as the preparation method of the lipophilic polyurethane sponge in Example 1, the difference is that the sponge matrix uses a polyurethane sponge with an average pore diameter of 600 μm.

[0056] The above-mentioned lipophilic polyurethane sponge made is carried out the oil-absorbing performance test, and the test method is exactly the same as the method in Comparative Example 1, and the results are as follows:

[0057] After 3 minutes, the polyurethane sponge was completely submerged in crude oil, and the polyurethane sponge was weighed to obtain: the oil absorption of the polyurethane sponge was 45.9g / g, and the polyurethane sponge was centrifuged at a spe...

Embodiment 3

[0060] The structure of the lipophilic polyurethane sponge used in this example is basically the same as that in Example 1, except that the sponge base is a polyurethane sponge with an average pore diameter of 900 μm.

[0061] The preparation method of the above-mentioned lipophilic polyurethane sponge is basically the same as the preparation method of the lipophilic polyurethane sponge in Example 1, the difference is that the sponge matrix uses a polyurethane sponge with an average pore diameter of 900 μm.

[0062] The above-mentioned lipophilic polyurethane sponge made is carried out the oil-absorbing performance test, and the test method is exactly the same as the method in Comparative Example 1, and the results are as follows:

[0063] The above-mentioned lipophilic polyurethane sponge made is carried out the oil-absorbing performance test, and the test method is exactly the same as the method in Comparative Example 1, and the results are as follows:

[0064] After 1 minut...

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Abstract

The invention provides lipophilic polyurethane sponge and a preparation method thereof. The lipophilic polyurethane sponge is based on porous polyurethane sponge as a matrix, and the matrix is grafted with a hydrophilic oleophobic C-C long chain group. As a way for implementation, by reaction of the polyurethane sponge and a C-C long chain-containing acyl chloride compound, so that the polyurethane sponge can be grafted with a C-C long chain by bonding of chemical bonds of amino, hydroxyl and-C (O) Cl functional groups in polyurethane. Experiments confirm that the structure can greatly reduce the surface energy of the polyurethane sponge, greatly improves the oil absorption capacity, and is low in price, non-toxic and non-pollution, so that the lipophilic polyurethane sponge is a good oil adsorption material, and can be used to quickly and efficiently adsorb and recover crude oil and other substances in crude oil leakage and other situations.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and in particular relates to a lipophilic polyurethane sponge and a preparation method thereof. The lipophilic polyurethane sponge can be used as a polymer adsorption material to quickly and efficiently absorb and recover crude oil substances in occasions such as crude oil leakage. Background technique [0002] In recent years, in the process of marine transportation and oil and gas extraction, the frequency of offshore oil spills and other emergencies has increased, which has brought great harm to marine ecology and seriously threatened marine life and human health. [0003] For example, in 1989, the "Exxon Valdez" oil tanker leaked 11 million gallons of crude oil, causing devastating damage to the ecological environment of the Gulf of Alaska: 2,100 kilometers of coastline were polluted, nearly 250,000 seabirds, 4,000 sea otters, 300 One harbor seal, 250 bald eagles and 22 killer wh...

Claims

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Application Information

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IPC IPC(8): C08J9/40C08L75/04B01J20/26E02B15/10
CPCY02A20/204
Inventor 曾志翔王刚乌学东薛群基
Owner SHANDONG OCEAN PIONEER NEW MATERIALS TECH CO LTD
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