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Composite polyurethane foam emulsion separation material, and preparation method and application thereof

A composite polyurethane and polyurethane foam technology, which is applied in separation methods, liquid separation, chemical instruments and methods, and can solve problems such as secondary pollution, easy deactivation, and cumbersome preparation processes

Active Publication Date: 2021-07-06
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the post-modification has cumbersome preparation process, unstable performance, easy inactivation, easy to cause secondary pollution, and cannot meet the requirements of large-scale preparation, which has been greatly restricted in practical application.

Method used

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  • Composite polyurethane foam emulsion separation material, and preparation method and application thereof
  • Composite polyurethane foam emulsion separation material, and preparation method and application thereof
  • Composite polyurethane foam emulsion separation material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] This embodiment provides a composite polyurethane foam emulsion separation material, which is prepared by the following method:

[0049] Step 1: Stir and mix 50mL of polytetrahydrofuran diol, 220uL of A33, 160uL of T-9, 1500uL of L-580, 2855uL of ultrapure water, 3552uL of dichloromethane, and 1g of polyaluminum chloride. The stirring speed is 1500r / min, the stirring time is 8min.

[0050] Step 2: Add 34.85 mL of toluene diisocyanate to the mixture prepared in step 1, and increase the stirring speed at the same time, the stirring speed is 4500 r / min, and the stirring time is 15 s.

[0051] Step 3, transfer the reactant in step 2 to a foaming mold, and allow it to foam freely for 3 minutes.

[0052] Step 4: After the reactants in step 3 are foamed, transfer them together with the foaming mold to an open place, allowing them to mature and stabilize under natural conditions for 24 hours.

Embodiment 2

[0054] This embodiment provides a composite polyurethane foam emulsion separation material, which is prepared by the following method:

[0055] Step 1, 50mL of polypropylene oxide triol, A1 is 210uL, T-22 is 145uL, L-618 is 1200uL, ultrapure water 2950uL, dichloromethane 3258uL, polyaluminum chloride 2g are stirred and mixed, and the stirring speed is 1800r / min, stirring time is 8min.

[0056] Step 2: Add 35.45 mL of toluene diisocyanate to the mixture prepared in step 1, and increase the stirring speed at the same time, the stirring speed is 4800 r / min, and the stirring time is 15 s.

[0057] Step 3, transfer the reactant in step 2 to a foaming mold, and allow it to foam freely for 4 minutes.

[0058] Step 4: After the reactants in step 3 are foamed, transfer them together with the foaming mold to an open place, allowing them to mature and stabilize under natural conditions for 24 hours.

Embodiment 3

[0060] This embodiment provides a composite polyurethane foam emulsion separation material, which is prepared by the following method:

[0061] Step 1, 50mL of polytetrahydrofuran diol, A107 is 180uL, T-9 is 140uL, SC154 is 1150uL, ultrapure water 2625uL, dichloromethane 3872uL, polyaluminum chloride 3g are stirred and mixed, the stirring speed is 2000r / min, Stirring time is 10min.

[0062] Step 2: Add 33.34 mL of toluene diisocyanate to the mixture prepared in step 1, and increase the stirring speed at the same time, the stirring speed is 5000 r / min, and the stirring time is 15 s.

[0063] Step 3, transfer the reactant in step 2 to a foaming mold, and allow it to foam freely for 5 minutes.

[0064] Step 4: After the reactants in step 3 are foamed, transfer them together with the foaming mold to an open place, allowing them to mature and stabilize under natural conditions for 24 hours.

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Abstract

The invention discloses a composite polyurethane foam emulsion separation material. The separation material is polyaluminum chloride in-situ composite polyurethane foam. The separation material is prepared from polyether polyol, a catalyst, a foaming agent, a foam stabilizer, isocyanate and polyaluminum chloride. The preparation method of the separation material adopts a quick foaming method, and comprises the following steps: adding commercial polyaluminum chloride into a polyurethane foam synthesis raw material, and uniformly dispersing the polyaluminum chloride into the foam synthesis raw material by stirring; and foaming and naturally curing to obtain the emulsion separation material. The preparation method is simple in process, short in period, mild in condition, green and environment-friendly, and easy for large-scale production and application. The emulsion separation material of the polyaluminum chloride in-situ composite polyurethane foam has excellent hydrophobicity and stable physical and chemical properties; and the efficient separation efficiency on oil-in-water type emulsification is realized, and the wide application prospect is realized in the field of oily sewage treatment.

Description

technical field [0001] The invention relates to the technical field of environmental functional materials, in particular to a composite polyurethane foam emulsion separation material, a preparation method and its application, in particular to a polyaluminum chloride in-situ composite polyurethane foam material, a preparation method and its application. Background technique [0002] With the rapid development of society, a large amount of oily sewage will be produced in oil exploitation, industrial production and human life. The oily sewage has caused serious harm to health, economy, environment and resources, so it is particularly important to separate oily sewage. Oily sewage can be divided into immiscible layered oil-water mixture and miscible milky oil-water mixture (emulsion), and the separation of emulsion is more difficult. This is mainly due to the smaller particle size of the oil droplets in the emulsion (<20um), and the small-sized oil droplets have better therm...

Claims

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Application Information

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IPC IPC(8): C08G18/48C08K3/16C08J9/14C08J9/08B01D17/022
CPCC08G18/4854C08G18/4829C08G18/4825C08J9/0066C08J9/08C08J9/145B01D17/0202C08J2203/02C08J2203/142C08J2375/08C08K2003/164
Inventor 周莹范雷倚张骞张瑞阳王锐何睿杰伍凡
Owner SOUTHWEST PETROLEUM UNIV
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