CN114133515A - Super-hydrophobic super-oleophylic polyurethane sponge polymer material and preparation method thereof - Google Patents
Super-hydrophobic super-oleophylic polyurethane sponge polymer material and preparation method thereof Download PDFInfo
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- CN114133515A CN114133515A CN202111571015.XA CN202111571015A CN114133515A CN 114133515 A CN114133515 A CN 114133515A CN 202111571015 A CN202111571015 A CN 202111571015A CN 114133515 A CN114133515 A CN 114133515A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/61—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/2805—Compounds having only one group containing active hydrogen
- C08G18/288—Compounds containing at least one heteroatom other than oxygen or nitrogen
- C08G18/2885—Compounds containing at least one heteroatom other than oxygen or nitrogen containing halogen atoms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/2805—Compounds having only one group containing active hydrogen
- C08G18/288—Compounds containing at least one heteroatom other than oxygen or nitrogen
- C08G18/289—Compounds containing at least one heteroatom other than oxygen or nitrogen containing silicon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2101/00—Manufacture of cellular products
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- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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- Polyurethanes Or Polyureas (AREA)
Abstract
The invention belongs to the technical field of functional polymer materials, and particularly relates to a super-hydrophobic super-oleophylic polyurethane sponge polymer material and a preparation method thereof. The invention aims to provide a polyurethane oil absorption sponge with super-hydrophobicity/super-lipophilicity. The technical scheme of the invention is that the super-hydrophobic super-oleophylic polyurethane sponge high polymer material and the preparation method thereof are composed of the following components by weight: 10-50 parts of polyisocyanate, 20-60 parts of chain extender, 0.05-1.5 parts of catalyst, 1-4 parts of chemical foaming agent, 1.0-8.0 parts of physical foaming agent, 0.5-3 parts of cross-linking agent and 2-20 parts of other auxiliary agents. The invention also provides a super-hydrophobic super-oleophylic polyurethane sponge high polymer material and a preparation method thereof. The oil absorption sponge has the advantages of super-hydrophobic and super-oleophilic property, large specific surface area, porous polymolecular layer, capillary agglutination and super-oil absorption property, environmental inertia and the like, and can be applied to high-efficiency and quick separation materials for emergency treatment of marine oil overflow pollution accidents.
Description
Technical Field
The invention belongs to the field of functional polymer materials, and particularly relates to a super-hydrophobic super-oleophylic polyurethane sponge polymer material applied to oil spill accident treatment and a preparation method thereof.
Background
With the increase of offshore oil exploration and development and oil product transportation, water pollution accidents frequently occur due to a series of accidents such as oil field leakage, oil ship oil leakage, oil pipeline breakage and the like and the discharge of waste water containing oil pollution, and seriously threaten the environment in which human beings live, so that the development of a super oil absorption material with low cost and ultrahigh oil absorption capacity is urgently needed, so that the super oil absorption material can rapidly treat the oil pollution on the water surface in a severe environment.
Due to the special large specific surface, the reticular loose structure and the capillary action of high porosity, gaps and cavities, the sponge has strong oil wicking and retaining capabilities and can fully retain adsorbed oil, and when the viscosity of the oil is higher, the degree of oil retention in the loose gaps is increased, thereby being beneficial to the adsorption and the retention of the oil. Therefore, the oil absorption material, especially the super oil absorption sponge with high oil absorption multiplying power and oil absorption efficiency is the best candidate for rapidly and effectively treating the oil leakage environmental pollution accident.
The traditional artificial sponge has a porous structure and hydrophilic and lipophilic groups inside and on the surface, and is also commonly used as a water-absorbing and oil-absorbing material in the past. For example, CN 102660046 a discloses "a method for preparing super-hydrophobic super-oleophilic sponge", which belongs to the technical field of functional materials, and the method comprises the following steps: the method comprises the steps of sponge pretreatment, chromic acid washing liquor preparation, preparation of a poly perfluoroalkyl siloxane-ethanol mixed solution, sponge immersion in chromic acid washing liquor for corrosion, sponge immersion in a poly perfluoroalkyl siloxane-ethanol mixed solution for modification, taking out and drying. The preparation method leads the surface of the polyurethane sponge to form a super-hydrophobic/super-oleophilic surface through chromic acid corrosion and fluorosilane modification. The method is characterized in that a polyurethane sponge is corroded by chromic acid lotion by means of a chemical reaction, and then the surface energy of the polyurethane sponge is reduced by modification of a poly perfluoroalkyl siloxane-ethanol solution, so that the polyurethane sponge has a super-hydrophobic and super-oleophilic function, the oil-water separation effect is enhanced, the contact angle of gasoline on the surface is 0 degrees, and the contact angle of water on the surface is more than 150 degrees. However, once an oil spill accident occurs, large-area and high-concentration oil stains are accumulated on the water surface, and in addition, the oil stains must be cleaned in the shortest time due to the complexity of migration and transformation of the oil in the water environment. The prior art can not meet the requirements, so that the development of an oil absorption material which is light in weight, high in oil absorption multiplying power, high in oil absorption efficiency and easy to recycle is needed.
Disclosure of Invention
The invention aims to provide a polyurethane oil absorption sponge with super-hydrophobicity/super-lipophilicity, which can be applied to oil overflow and oil pollution accidents.
The technical scheme of the invention is that the super-hydrophobic super-oleophylic polyurethane sponge high polymer material and the preparation method thereof are composed of the following components by weight: 10-50 parts of polyisocyanate, 20-60 parts of chain extender, 0.05-1.5 parts of catalyst, 1-4 parts of chemical foaming agent, 1.0-8.0 parts of physical foaming agent, 0.5-3 parts of cross-linking agent and 2-20 parts of other auxiliary agents.
Preferably, the super-hydrophobic super-oleophylic polyurethane sponge high polymer material and the preparation method thereof comprise the following components in parts by weight: 20-40 parts of polyisocyanate, 30-50 parts of chain extender, 0.1-1 part of catalyst, 2-4 parts of chemical foaming agent, 3.0-6.0 parts of physical foaming agent, 1-2.5 parts of cross-linking agent and 5-15 parts of other auxiliary agents.
Specifically, the polyisocyanate is at least one of toluene diisocyanate, isophorone diisocyanate or diphenylmethane diisocyanate and modified diphenylmethane diisocyanate. In the present invention, the polyisocyanate is a foam base resin.
Specifically, the chain extender comprises a main chain extender and a secondary chain extender; the main chain extender is used for adjusting the soft and hard structure of the sponge, and can be at least one of oleophilic polyether polyol or oleophilic polymer polyol, the oleophilic polyether polyol is at least one of soft foam polyether polyol, combined polyether polyol, polyurethane polyether polyol, hydroxyl silicone oil or hydroxyl polysiloxane, and the oleophilic polymer polyol is at least one of hexanediol polyol, polyethylene glycol or polyhexamethylene glycol; the chain extender is an active organic fluorine-containing long chain which can endow the sponge with super-hydrophobic/super-oleophylic functions, in particular to an organic fluorine-containing long chain which can react with isocyanate and contains amino, hydroxyl or siloxane.
Preferably, the long organic fluorine-containing chain is at least one of heptadecafluorodecyltrimethoxysilane, fluorosilane, perfluorooctanol, N-ethyl-N-hydroxyethyl perfluorooctylsulfonamide, N-propyl-N-hydroxyethyl perfluorooctylsulfonamide, perfluoroalkyl alkoxysilane, perfluoroalkyl amine, perfluorooctylethyl alcohol, 1H,2H, 2H-perfluorodecyltriethoxysilane.
Specifically, the catalyst is at least one of ethylenediamine, N' -dimethylaniline or stannous octoate.
Specifically, the chemical foaming agent is water and simultaneously plays a role of a chain extender.
Preferably, the physical foaming agent is at least one of liquid carbon dioxide, n-pentane, cyclopentane, isopentane, dichloromonofluoroethane, petroleum ether or liquefied petroleum gas.
Preferably, the crosslinking agent is at least one of pentaerythritol monoacrylate, pentaerythritol diacrylate, pentaerythritol, trimethylolpropane methacrylate, neopentyl glycol or neopentyl glycol diacrylate.
Preferably, the other auxiliaries include foam stabilizers, antioxidants and flame retardants.
Wherein the foam stabilizer is at least one of SD-611, T9, T12, A1, A33, A225, CGY-5 silicone oil, CGY-1 silicone oil, organosilicon foam stabilizer PF-802, SILBYK-9230, 6237 and 9231.
Foam stabilizers SD-611 and SD-102 were produced by Siidel, foam stabilizers T9, T12, A1, A33 and A225 were produced by Chengda, CGY-5 silicone oil and CGY-1 silicone oil, silicone foam stabilizer PF-802 was produced by Chenghua, and foam stabilizers SILBYK-9230, 6237 and 9231 were produced by Bike, Germany.
Wherein the flame retardant is at least one of melamine phosphate MELAPUR 200, resorcinol bis (diphenyl phosphate), melamine phosphate MELAPUR MP, phosphorus flame retardant Doher-6202, phosphorus flame retardant Doher-601 and Doher-601R.
Wherein the antioxidant is pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] (antioxidant 1010), N-octadecyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate (antioxidant 1076), tris (2, 4-di-tert-butylphenyl) phosphite (antioxidant 168), 2, 6-di-tert-butyl-4-methylphenol (antioxidant 264), N ' -bis- (3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexanediamine (antioxidant 1098), 2' -methylenebis (4-methyl-6-tert-butylphenol) (antioxidant 2246), 4' -thiobis (6-tert-butyl-3-methylphenol) (antioxidant 300), 1, 2-bis (3, 5-di-tert-butyl-4-hydroxy-phenylpropionic acid) hydrazine (antioxidant B102) and dilauryl thiodipropionate (antioxidant DLTP).
The invention also provides the super-hydrophobic super-oleophylic polyurethane sponge polymer material and a preparation method thereof, and the preparation method comprises the following steps:
a. preparing raw materials: weighing the following substances in parts by weight: 10-50 parts of polyisocyanate, 20-60 parts of chain extender, 0.05-1.5 parts of catalyst, 1-4 parts of chemical foaming agent, 1.0-8.0 parts of physical foaming agent, 0.5-3 parts of cross-linking agent and 2-20 parts of other auxiliary agents;
b. stirring: putting the raw material components into a stirring kettle with a homogenizing stirrer, controlling the temperature in the stirring kettle at 18-26 ℃, and stirring at the speed of 3000-7000 r/min for 20-50 minutes;
c. foaming: b, uniformly spraying the uniformly stirred raw materials in the step b into a foaming chamber through a metering pump, foaming, controlling the foaming time to be 1-7 minutes, and foaming and forming;
d. cutting: and c, sending out the sponge foamed and molded in the step c through a conveying belt, and cutting.
Preferably, in the step a, the following materials are weighed according to the following weight ratio: 20-40 parts of polyisocyanate, 30-50 parts of chain extender, 0.1-1 part of catalyst, 2-4 parts of chemical foaming agent, 3.0-6.0 parts of physical foaming agent, 1-2.5 parts of cross-linking agent and 5-15 parts of other auxiliary agents.
The invention has the beneficial effects that:
according to the invention, organic silicon and fluorine-containing polymer with low surface energy hydrophobic effect are introduced into the traditional polyurethane sponge, and the traditional polyurethane sponge is endowed with the advantages of super-hydrophobic and super-oleophylic property, large specific surface area, porous multi-molecular layer, capillary agglutination and super-oil absorption property, environmental inertia and the like through a chemical bonding mode, so that the high-efficiency rapid separation material which can be applied to emergency treatment of marine oil overflow pollution accidents is formed. The preparation method of the sponge is simple and easy to operate.
Therefore, the sponge is supposed to be endowed with super-hydrophobic/super-oleophilic characteristics, so that the sponge can rapidly, efficiently and greatly absorb oil from water by utilizing the oleophilic-hydrophobic characteristics and large specific surface and capillary action of the surface in the emergency treatment of the environmental pollution accidents. Meanwhile, due to the super-hydrophobic and super-oleophylic characteristics, the sponge selectively absorbs oil to avoid coagulation caused by the fact that the density of the sponge is greatly increased, the sponge is convenient to use due to the integrity of the sponge, the sponge can be repeatedly utilized through extrusion after absorbing liquid, the extruded oil can be recycled, and waste is reduced.
Detailed Description
According to the invention, the hardness and softness of the prepared sponge are adjusted by reacting polyether polyol serving as a chain extender with isocyanic acid, and the hydrophobic oleophylic performance of the sponge is adjusted by reacting active groups (such as hydroxyl or alkoxy) of siloxane and active groups (such as hydroxyl, amino and the like) containing long-chain fluorine with isocyanic acid and chemically bonding a low-surface-energy siloxane chain segment and the long-chain fluorine on the surface of the sponge.
Example 1 preparation of an oil absorbing sponge of the invention
The weight ratio of each component is as follows: 20 parts of diphenylmethane diisocyanate MDI (Basff M20S), 10 parts of polyether polyol soft foam polyether polyol polymer POP-3628, 10 parts of hydroxyl silicone oil, 10 parts of 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 (pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate), 2 parts of foam stabilizer (Germany Bike chemical company, SILBYK 9230).
The raw materials are put into a stirring kettle according to the formula, the temperature in the stirring kettle is controlled to be 18-26 ℃, and the raw materials are stirred at a high speed of 5000r/min for 30 minutes. And uniformly spraying the uniformly stirred raw materials into a foaming chamber through a metering pump for foaming, wherein the foaming time is controlled to be 5 minutes. And (4) delivering the foamed sponge out through a conveyer belt, and cutting according to the required specification.
Testing the oil absorption capacity of the super-hydrophobic/super-oleophilic polyurethane oil absorption sponge: 2g of gasoline and 20g of distilled water are mixed in a beaker, the sponge prepared in the embodiment is clamped by tweezers and is close to gasoline on the water surface, the gasoline is quickly adsorbed by the sponge, the sponge is weighed, the oil absorption capacity of the sponge is calculated, and the sponge is recycled after being cleaned by ethanol and dried after the gasoline is recovered by extrusion.
Oil absorption capacity = (sponge mass after oil absorption-sponge mass before oil absorption)/sponge mass before oil absorption.
Example 2 preparation of an oil absorbing sponge of the invention
The weight ratio of each component is as follows: 50 parts of diphenylmethane diisocyanate (Bayer corporation, 2460M), 40 parts of combined polyether polyol 3050 (3050 is an industrial reference number, polyether polyols are various types according to molecular weight and molecular structure, and this is a specific reference number), 5 parts of hydroxy silicone oil, 15 parts of heptadecafluorodecyltrimethoxysilane, 4 parts of water, 5 parts of petroleum ether, 1.5 parts of ethylenediamine, 3 parts of trimethylolpropane acrylate, 10 parts of resorcinol bis (diphenylphosphate), 5 parts of antioxidant 168 (tris (2, 4-di-tert-butylphenyl) phosphite), and 5 parts of foam stabilizer (Si De, silicone oil SD-102).
The raw materials are put into a stirring kettle according to the formula, the temperature in the stirring kettle is controlled to be 18-26 ℃, and the raw materials are stirred at a high speed of 6000r/min for 30 minutes. And uniformly spraying the uniformly stirred raw materials into a foaming chamber through a metering pump for foaming, wherein the foaming time is controlled to be 4 minutes. And (4) delivering the foamed sponge out through a conveyer belt, and cutting according to the required specification.
Testing the oil absorption capacity of the super-hydrophobic/super-oleophilic polyurethane oil absorption sponge: the same procedure as in example 1 was repeated.
Example 3 preparation of an oil absorbing sponge of the invention
The weight ratio of each component is as follows: 30 parts of diphenylmethane diisocyanate (Hensmei 5005), 25 parts of polyether polyol polyether (LEP-330N), 5 parts of hydroxy silicone oil, 10 parts of 1H,1H,2H, 2H-perfluorodecyl triethoxy silicon, 2.5 parts of water, 4.5 parts of dichloromonofluoroethane, 1 part of stannous octoate, 2.5 parts of trimethylolpropane methacrylate, 8 parts of flame retardant melamine phosphate MELAPUR MP, 1 part of antioxidant (antioxidant 168) and 2 parts of water-soluble polyether siloxane (foam stabilizer SILBYK-9230).
The raw materials are put into a stirring kettle according to the formula, the temperature in the stirring kettle is controlled to be 18-26 ℃, and the raw materials are stirred at a high speed of 5000r/min for 30 minutes. And uniformly spraying the uniformly stirred raw materials into a foaming chamber through a metering pump for foaming, wherein the foaming time is controlled to be 1 minute. And (4) delivering the foamed sponge out through a conveyer belt, and cutting according to the required specification.
Testing the oil absorption capacity of the super-hydrophobic/super-oleophilic polyurethane oil absorption sponge: the gasoline in the example is changed into diesel oil, the rest is the same as the example 1, the oil absorption capacity is 42g/g, and the oil absorption is basically constant after being recycled for many times.
Example 4 preparation of an oil absorbing sponge of the invention
The weight ratio of each component is as follows: 20 parts of toluene diisocyanate, 20 parts of diphenylmethane diisocyanate (Dow polymerization MDI-135C), 30 parts of polyether polyol (Longhua 220), 5 parts of perfluorooctylethyl alcohol, 5 parts of N-ethyl-N-hydroxyethyl perfluorooctylsulfonamide, 5 parts of perfluoroalkyl alkoxysilane, 2 parts of water, 1 part of cyclopentane, 1 part of dichloromonofluoroethane, 0.5 part of stannous octoate tin, 1 part of N, N' -dimethylaniline, 3 parts of neopentyl glycol diacrylate, 5 parts of phosphorus flame retardant Doher-6202, 3 parts of melamine phosphate MELAPUR MP, 1 part of antioxidant 1010 (tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester), 1 part of antioxidant 1076 (beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid N-octadecyl ester), 3 parts of silicone oil polyester type foam stabilizer sulfonated ricinol sodium salt (morning chemical CGY-5).
The raw materials are put into a stirring kettle according to the formula, the temperature in the stirring kettle is controlled to be 18-26 ℃, and the raw materials are stirred at a high speed of 5000r/min for 30 minutes. And uniformly spraying the uniformly stirred raw materials into a foaming chamber through a metering pump for foaming, wherein the foaming time is controlled to be 2 minutes. And (4) delivering the foamed sponge out through a conveyer belt, and cutting according to the required specification.
Testing the oil absorption capacity of the super-hydrophobic/super-oleophilic polyurethane oil absorption sponge: the gasoline in the example is changed into toluene, the rest is the same as the example 1, the oil absorption capacity is 49g/g, and the oil absorption is basically constant after the gasoline is recycled for many times.
Example 5 preparation of an oil absorbing sponge of the invention
The weight ratio of each component is as follows: 10 parts of toluene diisocyanate (Wanhua, modified MDI 50), 20 parts of isophorone diisocyanate, 30 parts of poly (soft-bubble polyether glycol), 10 parts of hydroxy silicone oil, 10 parts of heptadecafluorodecyltrimethoxysilane, 5 parts of perfluoroalkyl alkoxysilane, 2 parts of water, 2 parts of dichloromonofluoroethane, 0.5 part of stannous octoate, 3 parts of neopentyl glycol, 10 parts of phosphorus flame retardant Doher-601R, 2 parts of antioxidant B102 (1, 2-bis (3, 5-di-tert-butyl-4-hydroxy-phenylpropionic acid) hydrazine) and 3 parts of foam stabilizer (Kechengda T9).
The raw materials are put into a stirring kettle according to the formula, the temperature in the stirring kettle is controlled to be 18-26 ℃, and the raw materials are stirred at a high speed of 5000r/min for 30 minutes. And uniformly spraying the uniformly stirred raw materials into a foaming chamber through a metering pump for foaming, wherein the foaming time is controlled to be 4 minutes. And (4) delivering the foamed sponge out through a conveyer belt, and cutting according to the required specification.
Testing the oil absorption capacity of the super-hydrophobic/super-oleophilic polyurethane oil absorption sponge: the gasoline in the example is changed into normal hexane, the rest is the same as the example 1, the oil absorption capacity is 31g/g, and the oil absorption is basically constant after repeated recycling.
Example 6 preparation of an oil absorbing sponge of the invention
The weight ratio of each component is as follows: 20 parts of isophorone diisocyanate, 30 parts of polyethylene glycol 200, 10 parts of hydroxy silicone oil, 10 parts of perfluorooctylethyl alcohol (which is one of perfluorooctanol), 5 parts of perfluoroalkyl amine, 3 parts of water, 2 parts of liquid carbon dioxide, 1 part of stannous octoate, 0.5 part of N, N '-dimethylaniline, 1.5 parts of neopentyl glycol diacrylate, 1.5 parts of trimethylolpropane, 0.5 part of pentaerythritol diacrylate, 8 parts of phosphorus flame retardant Doher-601, 3 parts of melamine phosphate, 2 parts of antioxidant DLTP (dilauryl thiodipropionate), 2 parts of antioxidant 300 (4, 4' -thiobis (6-tert-butyl-3-methylphenol)), 1.5 parts of a foam stabilizer (morning CGY-5 silicone oil), 1.5 parts of a foam stabilizer (Germany Bikk chemical company, SILK-6237 polyether siloxane).
The raw materials are put into a stirring kettle according to the formula, the temperature in the stirring kettle is controlled to be 18-26 ℃, and the raw materials are stirred at a high speed of 3000r/min for 50 minutes. And uniformly spraying the uniformly stirred raw materials into a foaming chamber through a metering pump for foaming, wherein the foaming time is controlled to be 3 minutes. And (4) delivering the foamed sponge out through a conveyer belt, and cutting according to the required specification.
Testing the oil absorption capacity of the super-hydrophobic/super-oleophilic polyurethane oil absorption sponge: the gasoline in the example is changed into dimethylbenzene, the rest is the same as the example 1, the oil absorption capacity is 53g/g, and the oil absorption is basically constant after being recycled for multiple times.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that variations and modifications can be made to the technical solution of the present invention, and these variations and modifications fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The super-hydrophobic super-oleophylic polyurethane sponge high polymer material and the preparation method thereof are characterized in that: the composition comprises the following components in parts by weight: 10-50 parts of polyisocyanate, 20-60 parts of chain extender, 0.05-1.5 parts of catalyst, 1-4 parts of chemical foaming agent, 1.0-8.0 parts of physical foaming agent, 0.5-3 parts of cross-linking agent and 2-20 parts of other auxiliary agents.
2. The super-hydrophobic and super-oleophilic polyurethane sponge polymer material as claimed in claim 1 and the preparation method thereof are characterized in that: the composition comprises the following components in parts by weight: 20-40 parts of polyisocyanate, 30-50 parts of chain extender, 0.1-1 part of catalyst, 2-4 parts of chemical foaming agent, 3.0-6.0 parts of physical foaming agent, 1-2.5 parts of cross-linking agent and 5-15 parts of other auxiliary agents.
3. The super-hydrophobic and super-oleophilic polyurethane sponge polymer material as claimed in claim 1 or 2 and the preparation method thereof, characterized in that: the polyisocyanate is at least one of toluene diisocyanate, isophorone diisocyanate or diphenylmethane diisocyanate and modified diphenylmethane diisocyanate.
4. The super-hydrophobic and super-oleophilic polyurethane sponge polymer material as claimed in any one of claims 1 to 3, and the preparation method thereof, is characterized in that: the chain extender comprises a main chain extender and a secondary chain extender; the main chain extender is at least one of oleophilic polyether polyol or oleophilic polymer polyol, the oleophilic polyether polyol is at least one of soft-foam polyether polyol, combined polyether polyol, polyurethane polyether polyol, hydroxyl silicone oil or hydroxyl polysiloxane, and the oleophilic polymer polyol is at least one of hexanediol polyol, polyethylene glycol or polyhexamethylene glycol; the chain extender is an organic fluorine-containing long chain which can react with isocyanate and contains amino, hydroxyl or siloxane.
5. The super-hydrophobic and super-oleophilic polyurethane sponge polymer material as claimed in claim 4, and the preparation method thereof, is characterized in that: the long organic fluorine-containing chain is at least one of heptadecafluorodecyltrimethoxysilane, fluorosilane, perfluorooctanol, N-ethyl-N-hydroxyethyl perfluorooctylsulfonamide, N-propyl-N-hydroxyethyl perfluorooctylsulfonamide, perfluoroalkyl alkoxysilane, perfluoroalkyl amine, perfluorooctylethyl alcohol and 1H,1H,2H, 2H-perfluorodecyltriethoxysilane.
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| CN202111571015.XA CN114133515A (en) | 2021-12-21 | 2021-12-21 | Super-hydrophobic super-oleophylic polyurethane sponge polymer material and preparation method thereof |
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| CN202111571015.XA CN114133515A (en) | 2021-12-21 | 2021-12-21 | Super-hydrophobic super-oleophylic polyurethane sponge polymer material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114874407A (en) * | 2022-05-31 | 2022-08-09 | 东北石油大学 | Super-hydrophobic-super-oleophylic sponge and preparation method thereof |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114874407A (en) * | 2022-05-31 | 2022-08-09 | 东北石油大学 | Super-hydrophobic-super-oleophylic sponge and preparation method thereof |
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