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A kind of superhydrophobic/superoleophilic polyurethane oil-absorbing sponge and preparation method thereof

A super-hydrophobic, polyurethane technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of complex migration and transformation, and achieve the effect of simple preparation method and easy operation

Inactive Publication Date: 2017-01-11
重庆市环境科学研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, once an oil spill accident occurs, a large area of ​​high-concentration oil pollution often accumulates in the water surface, and the complexity of the migration and transformation of oil in the environmental factors of the water body makes it necessary to clean up the oil pollution as much as possible in the shortest possible time
The existing technology cannot meet the above requirements. Therefore, it is necessary to develop oil-absorbing materials that are light in weight, high in oil absorption ratio, high in oil absorption efficiency, and easy to recycle and recycle.

Method used

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  • A kind of superhydrophobic/superoleophilic polyurethane oil-absorbing sponge and preparation method thereof
  • A kind of superhydrophobic/superoleophilic polyurethane oil-absorbing sponge and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1 Preparation of oil-absorbing sponge of the present invention

[0033] The weight ratio of each component: 20 parts of diphenylmethane diisocyanate MDI (BASF M20S), 10 parts of polyether polyol soft foam polyether polyol polymer polyether polyol POP-3628, 10 parts of hydroxyl silicone oil, 10 parts Perfluorooctyl ethyl alcohol, 1 part of water, 2 parts of liquefied petroleum gas, 0.1 part of stannous octoate, 0.5 part of pentaerythritol, 2 parts of melamine phosphate MELAPUR 200, 2 parts of antioxidant 1010 (tetra[β-(3,5 -di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester), 2 parts of foam stabilizer (BK, SILBYK9230).

[0034]Put the raw materials into the stirring tank according to the above formula, control the temperature in the stirring tank at 18-26°C, and stir at a high speed of 5000r / min for 30 minutes. The uniformly stirred raw materials are evenly sprayed into the foaming chamber through the metering pump for foaming, and the foaming ...

Embodiment 2

[0037] Embodiment 2 Preparation of oil-absorbing sponge of the present invention

[0038] The weight ratio of each component: 50 parts of diphenylmethane diisocyanate (Bayer, 2460M), 40 parts of combined polyether polyol 3050 (3050 is the industrial label, polyether polyol has many types according to molecular weight and molecular structure difference) , this is a specific label), 5 parts of hydroxyl silicone oil, 15 parts of heptadecylfluorodecyltrimethoxysilane, 4 parts of water, 5 parts of petroleum ether, 1.5 parts of ethyldiamine, 3 parts of trimethylolpropane acrylate , 10 parts of resorcinol bis(diphenyl phosphate), 5 parts of antioxidant 168 (tris(2,4-di-tert-butylphenyl) phosphite), 5 parts of foam stabilizer (Side, silicone oil SD -102).

[0039] Put the raw materials into the stirring tank according to the above formula, control the temperature in the stirring tank at 18-26°C, and stir at a high speed of 6000r / min for 30 minutes. The uniformly stirred raw material...

Embodiment 3

[0041] Embodiment 3 Preparation of oil-absorbing sponge of the present invention

[0042] The weight ratio of each component: 30 parts of diphenylmethane diisocyanate (Huntsman 5005), 25 parts of polyether polyol polyether (LEP-330N), 5 parts of hydroxyl silicone oil, 10 parts of 1H, 1H, 2H, 2H -Perfluorodecyltriethoxysilane, 2.5 parts water, 4.5 parts dichlorofluoroethane, 1 part stannous octoate, 2.5 parts trimethylolpropane methacrylate, 8 parts flame retardant melamine phosphate MELAPUR MP, 1 part antioxidant (antioxidant 168), 2 parts water-soluble polyether siloxane (foam stabilizer SILBYK-9230).

[0043] Put the raw materials into the stirring tank according to the above formula, control the temperature in the stirring tank at 18-26°C, and stir at a high speed of 5000r / min for 30 minutes. The uniformly stirred raw materials are evenly sprayed into the foaming chamber by a metering pump for foaming, and the foaming time is controlled at 1 minute. The foamed sponge is s...

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Abstract

The invention belongs to the technical field of functional polymer materials, and in particular relates to a super-hydrophobic / super-oleophylic polyurethane oil-absorption sponge and a preparation method thereof. According to the technical scheme, the super-hydrophobic / super-oleophylic polyurethane oil-absorption sponge is prepared from the following components in parts by weight: 10-50 parts of polyisocyanates, 20-60 parts of a chain extender, 0.05-1.5 parts of a catalyst, 1-4 parts of a chemical foaming agent, 1.0-8.0 parts of a physical foaming agent, 0.5-3 parts of a cross-linking agent and 2-20 parts of other additives. The invention further provides the preparation method of the super-hydrophobic / super-oleophylic polyurethane oil-absorption sponge. The oil-absorption sponge provided by the invention has the advantages of super-hydrophobicity, super-oleophylicity, large specific surface area, porous polymolecular layers, capillary agglutination super oil-absorption property, environment inertia and the like, and is a high-efficiency rapid separation material which can be applied to emergency treatment on ocean oil overflowing pollution accidents.

Description

technical field [0001] The invention belongs to the field of functional polymer materials, and in particular relates to a hydrophobic / lipophilic polyurethane oil-absorbing sponge used in the treatment of oil spill accidents and a preparation method thereof. Background technique [0002] With the growth of offshore oil exploration and development and oil transportation, a series of accidents such as oil spills, oil spills from oil tankers, rupture of oil pipelines and the discharge of oily waste water have caused frequent water pollution accidents, which seriously threaten the survival of human beings. Therefore, there is an urgent need to develop low-cost, ultra-high oil-absorbing super-oil-absorbing materials, so that they can quickly treat oil pollution on water surfaces in harsh environments. [0003] Sponge, because of its unique large specific surface, reticular loose structure, high porosity, gap and capillary action of the cavity, makes it have strong core oil absorpt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/61C08J9/08C08J9/14C08J9/12C09K3/32
CPCC08G18/3802C08G18/4009C08G18/48C08G18/61C08G18/6666C08J9/08C08J9/141C08J2375/08C09K3/32
Inventor 陈刚才周贤杰肖定书杨清玲龚宇刘健
Owner 重庆市环境科学研究院
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