CN104327243A - Polyurethane foam loaded titanium dioxide and montmorillonite composite material and preparation method of composite material - Google Patents
Polyurethane foam loaded titanium dioxide and montmorillonite composite material and preparation method of composite material Download PDFInfo
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- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
- B01J20/265—Synthetic macromolecular compounds modified or post-treated polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28026—Particles within, immobilised, dispersed, entrapped in or on a matrix, e.g. a resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
- B01J20/3206—Organic carriers, supports or substrates
- B01J20/3208—Polymeric carriers, supports or substrates
- B01J20/3212—Polymeric carriers, supports or substrates consisting of a polymer obtained by reactions otherwise than involving only carbon to carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
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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
- C08G18/48—Polyethers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
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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
- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
- C08G2110/0066—≥ 150kg/m3
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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
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
Abstract
The invention discloses a polyurethane foam loaded titanium dioxide and montmorillonite composite material and a preparation method of the composite material. The composite material is capable of adsorbing, catalyzing and degrading oil pollutants on the surface of water under the illumination of sunlight. The preparation method of the composite material comprises the following steps: preparing titanium dioxide from tetrabutyl titanate, glacial acetic acid, absolute ethyl alcohol and the like, adding montmorillonite modified by a surfactant into a mixed solution to obtain a montmorillonite/titanium dioxide composite material, and finally mixing a mixed solution of titanium dioxide montmorillonite powder and diphenyl methane diisocyanate with a mixed solution of dibutyltin dilaurate and polyether polyol to prepare the polyurethane foam loaded titanium dioxide and montmorillonite composite material. According to the composite material, diesel oil is used as reference, the total oil pollutant residue in 8 hours is just 8%; the positive effect of improving the quality of the water is achieved; the composite material can be reused, is show in processing time and free of toxic byproduct, and has a great application potential of degrading the pollutants.
Description
Technical field
The present invention relates to a kind of polyurethane foam carried titanium dioxide and montmorillonite composite material and preparation method thereof, can to water surface pollution by oil in-situ immobilization.
Background technology
Petroleum industry comprises oil recovery, the refinement of oil and transportation and the pollution by oil caused by the discharge of various productive life obtains increasing concern.Petroleum pollution has put on schedule to the huge ecological damage that the destruction of environment and they are caused after being exhausted into water body how solving this difficult problem.Smooth oil pollution floats on water surface, hinders the photosynthesis of algae, decreases the gaseous interchange of air and water body, and hinder and pass oxygen function, make aquatic animals and plants mortality, concentration less harmful is high.Traditional pollution by oil treatment process comprises Physical, chemical method, biological treatment, and its combination treatment method, poor processing effect, and cost secondary pollution problem that is high and that cause limits the extensive use of these pollution treatment methods.Therefore, the process material of new pollution by oil and the proposition for the treatment of process and development seem in the urgent need to.
The TiO of anatase octahedrite
2as a kind of material of outstanding catalysis, there is high catalytic efficiency, the catalysis high stability under acid or alkali environment, be applicable to envrionment temperature and the advantage such as environmentally friendly.These features of titanium dioxide make its can with water surface Pollution is combined, titanium dioxide is used for the carcinogenic polycyclic aromatic hydrocarbons of degraded and various petroleum hydrocarbon by many investigators, obtains good result of study.But the titanium dioxide nanoparticle of pulverulence has very strong cluster energy and is suspended state and Petroleum concentration floats on water surface due to light weight in water body in water body, be unfavorable for titanium dioxide keying action direct with it, weaken its light-catalysed actual treatment ability.
Summary of the invention
For solving the deficiencies in the prior art, the object of the invention is to, a kind of polyurethane foam carried titanium dioxide and montmorillonite composite material and preparation method thereof are provided, cost of manufacture is low, flow process is simple, the material prepared can reuse, there are good absorption property and photocatalytic pollutant degradation ability, particularly suitable with the original position of the pollution by oil of rivers water body is administered, treatment time is short, the harmful by-products of difficult degradation can not be produced, degraded thoroughly, the concentration swimming in the pollution by oil of water surface is significantly reduced under solar light irradiation, and after repeatedly using, oil removing ability does not obviously decline.
Technical scheme of the present invention is: polyurethane foam carried titanium dioxide and montmorillonite composite material, it is characterized in that, comprise the raw material of following quality proportioning: polyether glycol 20 ~ 25 parts, diphenylmethanediisocyanate 25 ~ 30 parts, 5 ~ 10 parts, tap water, titanium dioxide 5 ~ 8 parts, cetyl trimethylammonium bromide 1 ~ 3 part, dibutyl tin dilaurate 1 ~ 5 part, polynite 5 ~ 10 parts.
Prepare the method for polyurethane foam carried titanium dioxide and montmorillonite composite material, it is characterized in that, comprise the following steps:
(1) polynite is dissolved in ethanolic soln, after magnetic agitation is dissolved, mixed solution is centrifugal, put into thermostatic drying chamber drying after centrifugal;
(2) mixed with dried polynite by cetyl trimethylammonium bromide, be dissolved in water, magnetic agitation 2h, filtration drying is stand-by;
(3) titanium dioxide is prepared: tetrabutyl titanate and dehydrated alcohol are mixed into a liquid, Glacial acetic acid, tap water and dehydrated alcohol are mixed into b liquid, dropwise instilled by b liquid in a liquid constantly stirred, stirring velocity is 500 r/min, dropwises rear Keep agitation 30 min;
(4) in step (3) prepared product, the modified polynite of step (2) is added, continue to stir 30min, obtain mixed solution, air-dry in left at room temperature, obtain xerogel, then xerogel is milled into Powdered after be positioned in retort furnace calcine 5 h at 450 DEG C, obtain pulverous titanium dioxide polynite product, choosing wherein particle diameter is that the titanium dioxide polynite powder of 6 ~ 18 nm is stand-by;
(5) by the titanium dioxide polynite powder in step (4) and diphenylmethanediisocyanate mix and blend, at 40 DEG C, heating in water bath is A liquid, dibutyl tin dilaurate is mixed with polyether glycol, 60 DEG C of heating in water bath also constantly stir as B liquid, mould preheating at 50 DEG C, mixes in a mold by A liquid and B liquid, constantly stirs and keeps component evenly and add water management foaming process, process lasts 5min, the air-dry 1d of left at room temperature.
The aforesaid method preparing polyurethane foam carried titanium dioxide and montmorillonite composite material, is characterized in that, in above-mentioned steps (1), to described polynite second alcohol and water in 1:1 ratio mixed dissolution.
The aforesaid method preparing polyurethane foam carried titanium dioxide and montmorillonite composite material, is characterized in that, in above-mentioned steps (1), magnetic agitation 30min dissolves, and mixed solution is centrifugal 6min under 4000r/min condition.
The aforesaid method preparing polyurethane foam carried titanium dioxide and montmorillonite composite material, is characterized in that, in above-mentioned steps (2), the mass ratio of described polynite and cetyl trimethylammonium bromide is 10:1.
The aforesaid method preparing polyurethane foam carried titanium dioxide and montmorillonite composite material, it is characterized in that, in above-mentioned steps (3), the equal-volume mixing of tetrabutyl titanate and dehydrated alcohol in described a liquid, in described b liquid, Glacial acetic acid, tap water and dehydrated alcohol mix according to the ratio of volume ratio 2:2:5.
The aforesaid method preparing polyurethane foam carried titanium dioxide and montmorillonite composite material, is characterized in that, in above-mentioned steps (4), in described titania gel, the quality polynite mixed calcining such as to drop into, calcining temperature controls at 450 DEG C, and calcination time is 5h.
The aforesaid method preparing polyurethane foam carried titanium dioxide and montmorillonite composite material, is characterized in that, in above-mentioned steps (5), described diphenylmethanediisocyanate is 150ml, and described titanium dioxide polynite mixture is 50g.
The aforesaid method preparing polyurethane foam carried titanium dioxide and montmorillonite composite material, is characterized in that, in above-mentioned steps (5), the volume ratio of described dibutyl tin dilaurate and polyether glycol is 3:10.
Principle is stated: matrix material set forth in the present invention, by being combined with titanium dioxide through the polynite of tensio-active agent (cetyl trimethylammonium bromide) modification, expand the interlamellar spacing of polynite, enhance the adsorptive power of polynite to organic pollutant; Thus the strong reducing property electronics making titanium dioxide produce under light illumination and the hole of high oxidative and the Degradation of organic pollutant strengthen greatly; Organic affinity, the low density of cooperation polyurethane foam better can carry out in-situ immobilization to the pollution by oil of rivers and lakes water surface.
The beneficial effect that the present invention reaches:
(1) utilize the surface and oil contaminant of visible light catalytic technology in-situ immobilization water body, in use procedure, do not consume the external energy, the cost of in-situ immobilization pollution by oil is declined greatly.
(2) compound polyurethane material light weight, floats on water surface, has good pore structure.Both be beneficial to and utilized sunlight to degrade, and be beneficial to again the pollution by oil of contact water surface, enhance the absorption to pollution by oil and degraded.
(3) organically-modified to polynite of tensio-active agent (cetyl trimethylammonium bromide) is utilized, adding it to the affinity of organic contamination increases interlamellar spacing, the effect of strengthening absorption, be conducive to being coupled of titanium dioxide and polynite, greatly strengthen the ability of the photocatalytic pollutant degradation of matrix material.
(4) nanoparticle of polynite and titanium dioxide can enhance stability and the intensity of polyurethane material, and experiment shows, this kind of matrix material recirculation uses after three times, and the ability of photocatalysis to degrade organic matter does not obviously decline, and can repeatedly recycle.
Accompanying drawing explanation
Fig. 1 is in the composite titania material preparation process of gained polyurethane foam load, the XRD diffractogram of the polynite before modified.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
Polyurethane foam carried titanium dioxide and montmorillonite composite material, comprise the raw material of following quality proportioning: polyether glycol 20 ~ 25 parts, diphenylmethanediisocyanate 25 ~ 30 parts, 5 ~ 10 parts, tap water, titanium dioxide 5 ~ 8 parts, cetyl trimethylammonium bromide 1 ~ 3 part, dibutyl tin dilaurate 1 ~ 5 part, polynite 5 ~ 10 parts.
Prepare the method for polyurethane foam carried titanium dioxide and montmorillonite composite material, comprise the following steps:
(1) get the ratio wiring solution-forming of 100ml ethanol and water 1:1, dissolved in the solution by the montmorillonite of 25g, 30min under magnetic agitation, after dissolving, mixed solution, at the centrifugal 6min of 4000r/min, puts into thermostatic drying chamber drying after centrifugal.
(2) get 2.5g cetyl trimethylammonium bromide, mix with dried polynite, be dissolved in 100ml water, magnetic agitation 2h, filtration drying is stand-by.
(3) titanium dioxide is prepared: the tetrabutyl titanate of 25 mL and 25 mL dehydrated alcohols are mixed into a liquid, 8 mL Glacial acetic acid, 8 mL tap water and 20 mL dehydrated alcohols are mixed into b liquid, b liquid is dropwise instilled in a liquid constantly stirred, stirring velocity is 500 r/min, dropwises rear Keep agitation 30 min.
(4) in step (3) prepared product, the modified polynite of step (2) is added, continue to stir 30min, obtain mixed solution, then air-dry in left at room temperature, obtain xerogel, then xerogel is milled into Powdered after be positioned in retort furnace calcine 5 h at 450 DEG C, obtain pulverous titanium dioxide polynite product, then choosing wherein particle diameter is that the titanium dioxide polynite powder of 6 ~ 18 nm is stand-by.
(5) by the 50g titanium dioxide polynite powder in step (4) and 150ml diphenylmethanediisocyanate mix and blend, at 40 DEG C, heating in water bath is A liquid, 30ml dibutyl tin dilaurate is constantly stirred with 60 DEG C of heating in 100ml polyether glycol mixing water-bath, for B liquid, mould preheating at 50 DEG C, mixes in a mold by A liquid and B liquid, constantly stirs and keeps component evenly and add suitable quantity of water controlling foaming process, process lasts 5min, the air-dry 1d of left at room temperature.
Fig. 1 is in the composite titania material preparation process of gained polyurethane foam load, the XRD diffractogram of the polynite before modified.As seen from the figure, the montmorillonite particle diameter through modification becomes large, and the favourable Intercalation with titanium dioxide, make it more stable, and the adsorptive power of the expansion of interlamellar spacing to polynite has raising effect.
Prepared polyurethane foam density is 330Kg/m
3, naturally can float on water surface, be convenient to the pollution by oil of the photocatalytic degradation water surface of matrix material.
For simulating actual conditions, photocatalytic experiment is carried out under sunlight, and experiment place is Nanjing, and weather condition is fine day, when time is the morning 9 to afternoon 5 time, tap water 500ml in beaker, adds 20g diesel oil, compound catalyze material 3cm × 2cm × 2cm, measure the relation of light application time and crude oil residual quantity under the same conditions, have employed in environmental monitoring measure petroleum substance ultraviolet spectrophotometry to measure total Residual oil value, and contrast experiment under being provided with single illumination condition, result is as follows:
Known from result, although pollution by oil can about natural light issues third contact of a total solar or lunar eclipse solution, speed is very slow, under 8h photodissociation total amount altogether 15%, in water bodies of rivers and lakes particularly in flow velocity slowly water body, be very easily gathered into oil film, affect water_air exchange, produce ecological damage.During the titanium dioxide of urethane load produced in the present invention and the absorption of montmorillonite composite material and the photocatalytic degradation simultaneously produced react, the total amount remnants of greasy dirt after 8h only 8%.In reality, used composite catalyst remained on surface has the greasy dirt that a small amount of absorption is not degraded in time, and after recycling three times, the most degradation amount reached after same time is 71% of degradation amount first, and matrix material has good repeat performance.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (9)
1. polyurethane foam carried titanium dioxide and montmorillonite composite material, it is characterized in that, comprise the raw material of following quality proportioning: polyether glycol 20 ~ 25 parts, diphenylmethanediisocyanate 25 ~ 30 parts, 5 ~ 10 parts, tap water, titanium dioxide 5 ~ 8 parts, cetyl trimethylammonium bromide 1 ~ 3 part, dibutyl tin dilaurate 1 ~ 5 part, polynite 5 ~ 10 parts.
2. prepare the method for polyurethane foam carried titanium dioxide according to claim 1 and montmorillonite composite material, it is characterized in that, comprise the following steps:
(1) polynite is dissolved in ethanolic soln, after magnetic agitation is dissolved, mixed solution is centrifugal, put into thermostatic drying chamber drying after centrifugal;
(2) mixed with dried polynite by cetyl trimethylammonium bromide, be dissolved in water, magnetic agitation 2h, filtration drying is stand-by;
(3) titanium dioxide is prepared: tetrabutyl titanate and dehydrated alcohol are mixed into a liquid, Glacial acetic acid, tap water and dehydrated alcohol are mixed into b liquid, dropwise instilled by b liquid in a liquid constantly stirred, stirring velocity is 500 r/min, dropwises rear Keep agitation 30 min;
(4) in step (3) prepared product, the modified polynite of step (2) is added, continue to stir 30min, obtain mixed solution, air-dry in left at room temperature, obtain xerogel, then xerogel is milled into Powdered after be positioned in retort furnace calcine 5 h at 450 DEG C, obtain pulverous titanium dioxide polynite product, choosing wherein particle diameter is that the titanium dioxide polynite powder of 6 ~ 18 nm is stand-by;
(5) by the titanium dioxide polynite powder in step (4) and diphenylmethanediisocyanate mix and blend, at 40 DEG C, heating in water bath is A liquid, dibutyl tin dilaurate is mixed with polyether glycol, 60 DEG C of heating in water bath also constantly stir as B liquid, mould preheating at 50 DEG C, mixes in a mold by A liquid and B liquid, constantly stirs and keeps component evenly and add water management foaming process, process lasts 5min, the air-dry 1d of left at room temperature.
3. the method preparing polyurethane foam carried titanium dioxide and montmorillonite composite material according to claim 2, is characterized in that, in above-mentioned steps (1), to described polynite second alcohol and water in 1:1 ratio mixed dissolution.
4. the method preparing polyurethane foam carried titanium dioxide and montmorillonite composite material according to claim 2, is characterized in that, in above-mentioned steps (1), magnetic agitation 30min dissolves, and mixed solution is centrifugal 6min under 4000r/min condition.
5. the method preparing polyurethane foam carried titanium dioxide and montmorillonite composite material according to claim 2, is characterized in that, in above-mentioned steps (2), the mass ratio of described polynite and cetyl trimethylammonium bromide is 10:1.
6. the method preparing polyurethane foam carried titanium dioxide and montmorillonite composite material according to claim 2, it is characterized in that, in above-mentioned steps (3), the equal-volume mixing of tetrabutyl titanate and dehydrated alcohol in described a liquid, in described b liquid, Glacial acetic acid, tap water and dehydrated alcohol mix according to the ratio of volume ratio 2:2:5.
7. the method preparing polyurethane foam carried titanium dioxide and montmorillonite composite material according to claim 2, it is characterized in that, in above-mentioned steps (4), in described titania gel, the quality polynite mixed calcining such as to drop into, calcining temperature controls at 450 DEG C, and calcination time is 5h.
8. the method preparing polyurethane foam carried titanium dioxide and montmorillonite composite material according to claim 2, is characterized in that, in above-mentioned steps (5), described diphenylmethanediisocyanate is 150ml, and described titanium dioxide polynite mixture is 50g.
9. the method preparing polyurethane foam carried titanium dioxide and montmorillonite composite material according to claim 2, is characterized in that, in above-mentioned steps (5), the volume ratio of described dibutyl tin dilaurate and polyether glycol is 3:10.
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Cited By (8)
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|---|---|---|---|---|
| CN105170132A (en) * | 2015-07-24 | 2015-12-23 | 河海大学 | Polyurethane foam supported liver/graphene/ titanium dioxide nano particle composite material, preparation method thereof and application thereof |
| CN105293709A (en) * | 2015-11-18 | 2016-02-03 | 河海大学 | Ecological floating bed for oil-polluted water remediation |
| CN105561955A (en) * | 2016-03-03 | 2016-05-11 | 梅庆波 | Method for preparing hydrophobic cellulosic organic nano clay composite heavy-metal ion adsorbing ceramsites |
| CN105797694A (en) * | 2016-05-28 | 2016-07-27 | 湖南细心信息科技有限公司 | Recyclable water purifying agent preparation method |
| CN106633299A (en) * | 2016-12-19 | 2017-05-10 | 花园新材料股份有限公司 | Polyethylene/montmorillonoid-supported titanium dioxide composite material and preparation method thereof |
| CN111961184A (en) * | 2019-05-20 | 2020-11-20 | 万华化学集团股份有限公司 | Low-density ultraviolet radiation-resistant polyurethane sponge and preparation method thereof |
| CN113856756A (en) * | 2021-10-15 | 2021-12-31 | 暨南大学 | Ag/TiO2Preparation method and application of composite modified sponge |
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| CN111961184B (en) * | 2019-05-20 | 2022-04-22 | 万华化学集团股份有限公司 | Low-density ultraviolet radiation-resistant polyurethane sponge and preparation method thereof |
| CN113856756A (en) * | 2021-10-15 | 2021-12-31 | 暨南大学 | Ag/TiO2Preparation method and application of composite modified sponge |
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| CN114160089A (en) * | 2021-11-05 | 2022-03-11 | 上海船舶工艺研究所(中国船舶工业集团公司第十一研究所) | VOCs adsorbing material of titanium tricarboxide composite titanium dioxide and preparation method thereof |
| CN114160089B (en) * | 2021-11-05 | 2024-04-05 | 上海船舶工艺研究所(中国船舶集团有限公司第十一研究所) | VOCs adsorption material of titanium carbide composite titanium dioxide and preparation method thereof |
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