CN103804870A - Method for preparing photocatalytic fibrous composite material - Google Patents
Method for preparing photocatalytic fibrous composite material Download PDFInfo
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- CN103804870A CN103804870A CN201210462150.5A CN201210462150A CN103804870A CN 103804870 A CN103804870 A CN 103804870A CN 201210462150 A CN201210462150 A CN 201210462150A CN 103804870 A CN103804870 A CN 103804870A
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- photocatalytic
- raw material
- fiber
- matrix material
- spinning
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Abstract
The invention relates to a method for preparing a photocatalytic fibrous composite material, belonging to the field of composite materials. The method for preparing the photocatalytic fibrous composite material, disclosed by the invention, comprises the following steps of putting photocatalytic fiber and thermosetting resin into a milling device, wherein the volume ratio of photocatalytic fiber to thermosetting resin is (5-40): 100; mixing uniformly, then, carrying out heat preservation for 1-6 hours at the temperature of 190-250 DEG C, and carrying out compression molding, wherein after the photocatalytic fiber is irradiated for 6 hours in a dry atmosphere under the irradiation of UV (ultraviolet) with the wavelength of 320-365nm, the NOx decomposition ratio is over 24%, the diameter of the fiber is 1-20 microns and the length of the fiber is 100-500mm. The photocatalytic fibrous composite material has the characteristics of good photocatalysis effect, strong degradability, strong corrosion resistance, good flexibility and the like, and can be widely applied to the industries of chemical engineering, petroleum, aerospace, aviation, construction and the like.
Description
Technical field
The preparation method who the present invention relates to a kind of photocatalytic fiber matrix material, belongs to field of compound material.
Background technology
Photocatalyst material is under the irradiation of light, self do not change and but can promote the material of chemical reaction, photocatalyst material is that the transform light energy of utilizing nature to exist becomes the required energy of chemical reaction, produce katalysis, make oxygen and water molecules around be excited into the free negative ion that has oxidizing power.Almost separable solution is all to human body and harmful organic substance and the part inorganic substance of environment, can not only accelerated reaction, also can use the natural Lu of determining, and do not cause the wasting of resources and additional pollution to form.Photocatalyst material has the effect of germ resistance, purifying air, deodorizing, the anti-algae of mildew-resistant, anti-fouling and self-cleaning.Photocatalyst material has high security simultaneously, even can be used as food and medicine additive, through U.S. FDA authentication, uses very safe.Photocatalyst material has good persistence simultaneously, and due to its place that reaction is only provided, itself does not participate in chemical reaction, so its action effect is lasting.
Spinning is a procedure of manufacturing chemistry fiber, after some macromolecular compound is made to colloidal solution or is fused into melt, extrudes by spinning nozzle pore the process that forms man-made fiber, mainly comprises solvent spinning and the large class of melt spinning two.Wherein, melt-spinning is a kind of ripe spinning processes that uses.Melt spinning method is divided into again polymerization, co-blended spinning method, core-sheath spinning method.
Summary of the invention
The object of this invention is to provide a kind of preparation method of photocatalytic fiber matrix material, utilize photocatalytic fiber prepared by the method to have photocatalysis characteristic, snappiness is good simultaneously, tensile strength is high, and corrosion resistance is strong.
A preparation method for photocatalytic fiber matrix material, comprises following technique: photocatalytic fiber and thermoset resin material are placed in to kneading device, and the volume ratio of described photocatalytic fiber and thermosetting resin is 5 ~ 40:100; After mixing, at 190 ℃ ~ 250 ℃, be incubated 1h ~ 6h, and compression moulding;
Wherein, described photocatalytic fiber, under the UV of wavelength 320 ~ 365nm irradiates, in dry atmosphere, irradiates NO after 6 hours
xrate of decomposition is more than 24%, and Fibre diameter is 1 ~ 20 μ m, and staple length is 100 ~ 500mm;
Described thermoset resin material is unsaturated polyester, vinyl ester, epoxy resin, resol or polyimide resin.
The preferred described high strength fibre of preparation method of photocatalytic fiber matrix material of the present invention and the volume ratio of thermosetting resin are 20 ~ 40:100.
After preferably mixing, the preparation method of photocatalytic fiber matrix material of the present invention is incubated 1h ~ 3h at 190 ℃ ~ 220 ℃.
The viscosity of the preferred described thermoset resin material of preparation method of photocatalytic fiber matrix material of the present invention is at least 15PaS.
The preferred described photocatalytic fiber of preparation method of photocatalytic fiber matrix material of the present invention, under the UV of wavelength 320 ~ 365nm irradiates, in dry atmosphere, irradiates NO after 6 hours
xrate of decomposition is more than 35%.
The preferred described photocatalytic fiber of preparation method of photocatalytic fiber matrix material of the present invention, under the UV of wavelength 320 ~ 365nm irradiates, in dry atmosphere, irradiates NO after 6 hours
xrate of decomposition is more than 50%.
Photocatalytic fiber of the present invention is preparation as follows preferably.
A preparation method for photocatalytic fiber, comprises raw material processing, slurrying, spinning and heat treated step, and in the step of described raw material processing, described raw material by mass percentage, is made up of following component:
Described TiO
2, Fe
2o
3, WO
3, Al
2o
3, ZnO, SiO
2and ZrO
2median size all below 200nm.
In the step of the preferred described raw material processing of preparation method of photocatalytic fiber of the present invention, described raw material by mass percentage, is made up of following component:
In the step of the preferred described raw material processing of preparation method of photocatalytic fiber of the present invention, described raw material by mass percentage, is made up of following component:
The preferred TiO of preparation method of photocatalytic fiber of the present invention
2, Fe
2o
3, WO
3, Al
2o
3, ZnO, SiO
2and ZrO
2particle diameter be 100nm ~ 200nm.
The preferred described TiO of preparation method of photocatalytic fiber of the present invention
2, Fe
2o
3, WO
3, Al
2o
3, ZnO, SiO
2and ZrO
2particle diameter be 100nm ~ 150nm.
The preferred described slurrying step of preparation method of photocatalytic fiber of the present invention is: raw material is dissolved in superpolymer solute, and the molecular weight of described polymer matrix material is 200000 ~ 500000.
The preferred described spinning step of preparation method of photocatalytic fiber of the present invention is: the molecular weight of described polymer matrix material is 200000 ~ 400000.
The preferred polymer matrix material of preparation method of photocatalytic fiber of the present invention is polystyrene or polyoxyethylene glycol.
The preferred described preparation method of preparation method of photocatalytic fiber of the present invention comprises following processing step:
1. raw material processing: get the raw materials ready in proportion, by TiO
2, Fe
2o
3, WO
3, Al
2o
3, ZnO, SiO
2and ZrO
2the median size all raw material below 200nm is evenly mixed;
2. slurrying: by step 1. gained raw material be dissolved in polymer matrix material, the molecular weight of described polymer matrix material is 200000 ~ 500000, stirs;
3. spinning: by step 2. gained slurries be placed in melt spinning device, under vacuum, be heated to 100 ℃ ~ 120 ℃, insulation 0.5 ~ 1h, carry out spinning with the speed of 100 ~ 200m/min subsequently, diameter is the precursor of 1 ~ 20 μ m;
4. thermal treatment: by step 3. gained precursor be placed in High Temperature Furnaces Heating Apparatus, under vacuum, with the speed of 20 ~ 100 ℃/min, be warming up to 800 ℃ ~ 1100 ℃, process 6 ~ 48h.
The invention has the beneficial effects as follows: the preparation method of photocatalytic fiber matrix material of the present invention, comprise following technique: photocatalytic fiber and thermoset resin material are placed in to kneading device, and the volume ratio of described photocatalytic fiber and thermosetting resin is 5 ~ 40:100; After mixing, at 190 ℃ ~ 250 ℃, be incubated 1h ~ 6h, and compression moulding, wherein, described photocatalytic fiber, under the UV of wavelength 320 ~ 365nm irradiates, in dry atmosphere, irradiates NO after 6 hours
xrate of decomposition is more than 24%, and Fibre diameter is 1 ~ 20 μ m, and staple length is 100 ~ 500mm.
This fiber is with TiO
2, Fe
2o
3, WO
3, Al
2o
3, ZnO, SiO
2and ZrO
2high strength raw material and photochemical catalysis raw material are matrix, take superpolymer as matrix, adopt melt spinning method to carry out spinning.This preparation method's tool technique is simple, quality product high, the photocatalytic fiber matrix material of preparation has the features such as photocatalysis effect is good, degradation capability is strong, corrosion resistance is strong, snappiness is good, is widely used in the industries such as chemical industry, oil, space flight and aviation, building.
Embodiment
Following non-limiting example can make the present invention of those of ordinary skill in the art's comprehend, but does not limit the present invention in any way.
Embodiment 1
1. raw material processing: get the raw materials ready in proportion, raw material median size is all evenly mixed at the raw material of 150nm
2. slurrying: by step 1. gained raw material be dissolved in polymer matrix material, the molecular weight of described polymer matrix material is 200000, stirs;
3. spinning: by step 2. gained slurries be placed in melt spinning device, under vacuum, be heated to 100 ℃ ~ 120 ℃, insulation 1h, carry out spinning with the speed of 150m/min subsequently, diameter is the precursor of 5 μ m;
4. thermal treatment: by step 3. gained precursor be placed in High Temperature Furnaces Heating Apparatus, under vacuum, with the speed of 25 ℃/min, be warming up to 850 ℃, process 24h.
Photocatalytic fiber of the present invention, under the UV of wavelength 320 ~ 365nm irradiates, in dry atmosphere, irradiates NO after 6 hours
xrate of decomposition is 33%, and Fibre diameter is 5 μ m, and staple length is 100mm.
Matrix material is prepared as follows: the volume ratio of photocatalytic fiber and epoxy resin is 10:100, and the viscosity of epoxy resin is 20PaS, solidifies 2h at 200 ℃.
Embodiment 2
1. raw material processing: get the raw materials ready in proportion, raw material median size is all evenly mixed at the raw material of 200nm
2. slurrying: by step 1. gained raw material be dissolved in polymer matrix material, the molecular weight of described polymer matrix material is 400000, stirs;
3. spinning: by step 2. gained slurries be placed in melt spinning device, under vacuum, be heated to 100 ℃ ~ 120 ℃, insulation 1h, carry out spinning with the speed of 150m/min subsequently, diameter is the precursor of 10 μ m;
4. thermal treatment: by step 3. gained precursor be placed in High Temperature Furnaces Heating Apparatus, under vacuum, with the speed of 50 ℃/min, be warming up to 1100 ℃, process 6h.
Photocatalytic fiber of the present invention, under the UV of wavelength 320 ~ 365nm irradiates, in dry atmosphere, irradiates NO after 6 hours
xrate of decomposition is 51%, and Fibre diameter is 10 μ m, and staple length is 200mm.
Matrix material is prepared as follows: the volume ratio of photocatalytic fiber and epoxy resin is 40:100, and the viscosity of epoxy resin is 15PaS, solidifies 4h at 220 ℃.
Claims (10)
1. a preparation method for photocatalytic fiber matrix material, is characterized in that: comprise following technique: photocatalytic fiber and thermoset resin material are placed in to kneading device, and the volume ratio of described photocatalytic fiber and thermosetting resin is 5 ~ 40:100; After mixing, at 190 ℃ ~ 250 ℃, be incubated 1h ~ 6h, and compression moulding,
Wherein, described photocatalytic fiber, under the UV of wavelength 320 ~ 365nm irradiates, in dry atmosphere, irradiates NO after 6 hours
xrate of decomposition is more than 24%, and Fibre diameter is 1 ~ 20 μ m, and staple length is 100 ~ 500mm;
Described thermoset resin material is unsaturated polyester, vinyl ester, epoxy resin, resol or polyimide resin.
2. method according to claim 1, is characterized in that: the volume ratio of described high strength fibre and thermosetting resin is 20 ~ 40:100.
3. method according to claim 1, is characterized in that: after mixing, at 190 ℃ ~ 220 ℃, be incubated 1h ~ 3h.
4. method according to claim 1, is characterized in that: at least 15PaS of the viscosity of described thermoset resin material.
5. method according to claim 1, it is characterized in that: described fiber is prepared as follows: comprise raw material processing, slurrying, spinning and heat treated step, it is characterized in that: in the step of described raw material processing, described raw material by mass percentage, is made up of following component:
Described TiO
2, Fe
2o
3, WO
3, Al
2o
3, ZnO, SiO
2and ZrO
2median size all below 200nm.
6. method according to claim 4, is characterized in that: described TiO
2, Fe
2o
3, WO
3, Al
2o
3, ZnO, SiO
2and ZrO
2particle diameter be 100nm ~ 200nm.
7. method according to claim 4, is characterized in that: described slurrying step is: raw material is dissolved in superpolymer solute, and the molecular weight of described polymer matrix material is 200000 ~ 500000.
8. method according to claim 7, is characterized in that: described spinning step is: the molecular weight of described polymer matrix material is 200000 ~ 400000.
9. method according to claim 7, is characterized in that: described polymer matrix material is polystyrene or polyoxyethylene glycol.
10. method according to claim 5, is characterized in that: described preparation method comprises following processing step:
1. raw material processing: get the raw materials ready in proportion, by TiO
2, Fe
2o
3, WO
3, Al
2o
3, ZnO, SiO
2and ZrO
2the median size all raw material below 200nm is evenly mixed;
2. slurrying: by step 1. gained raw material be dissolved in polymer matrix material, the molecular weight of described polymer matrix material is 200000 ~ 500000, stirs;
3. spinning: by step 2. gained slurries be placed in melt spinning device, under vacuum, be heated to 100 ℃ ~ 120 ℃, insulation 0.5 ~ 1h, carry out spinning with the speed of 100 ~ 200m/min subsequently, diameter is the precursor of 1 ~ 20 μ m;
4. thermal treatment: by step 3. gained precursor be placed in High Temperature Furnaces Heating Apparatus, under vacuum, with the speed of 20 ~ 100 ℃/min, be warming up to 800 ℃ ~ 1100 ℃, process 6 ~ 48h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210462150.5A CN103804870A (en) | 2012-11-15 | 2012-11-15 | Method for preparing photocatalytic fibrous composite material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210462150.5A CN103804870A (en) | 2012-11-15 | 2012-11-15 | Method for preparing photocatalytic fibrous composite material |
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| Publication Number | Publication Date |
|---|---|
| CN103804870A true CN103804870A (en) | 2014-05-21 |
Family
ID=50702287
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|---|---|---|---|
| CN201210462150.5A Pending CN103804870A (en) | 2012-11-15 | 2012-11-15 | Method for preparing photocatalytic fibrous composite material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818545A (en) * | 2015-04-28 | 2015-08-05 | 中国科学院深圳先进技术研究院 | Core/shell-structured composite fiber and preparation method of same |
| CN107201572A (en) * | 2017-07-06 | 2017-09-26 | 厦门翔鹭化纤股份有限公司 | A kind of preparation method of automatically cleaning polyester and its fiber |
-
2012
- 2012-11-15 CN CN201210462150.5A patent/CN103804870A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818545A (en) * | 2015-04-28 | 2015-08-05 | 中国科学院深圳先进技术研究院 | Core/shell-structured composite fiber and preparation method of same |
| CN107201572A (en) * | 2017-07-06 | 2017-09-26 | 厦门翔鹭化纤股份有限公司 | A kind of preparation method of automatically cleaning polyester and its fiber |
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Application publication date: 20140521 |