CN105544187A - Super-hydrophobic fabric and preparation method thereof - Google Patents
Super-hydrophobic fabric and preparation method thereof Download PDFInfo
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- CN105544187A CN105544187A CN201610079544.0A CN201610079544A CN105544187A CN 105544187 A CN105544187 A CN 105544187A CN 201610079544 A CN201610079544 A CN 201610079544A CN 105544187 A CN105544187 A CN 105544187A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
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- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention provides a super-hydrophobic fabric and a preparation method thereof. According to the preparation method provided by the invention, trimethyl siloxane is taken as a raw material for preparing silicone gel; and meanwhile, textile is sequentially treated with a prepared silicone gel solution and a polydimethylsiloxane solution, so that the surface of the prepared super-hydrophobic fabric does not easily fall off; and the mechanical property is good. Meanwhile, the obtained super-hydrophobic fabric is good in waterproof property and air permeability.
Description
Technical field
The present invention relates to textile field, particularly relate to a kind of superhydrophobic fabric and preparation method thereof.
Background technology
Since German botanist Barthlott in 1997 finds the super-hydrophobic phenomenon of lotus leaf surface, super hydrophobic surface has caused the extensive concern of scientific research personnel.Research finds, the micro nano structure of these super hydrophobic surfaces plays vital effect to super-hydrophobicity.
Prepare super hydrophobic surface at present mainly through two kinds of approach: 1) modify low-surface energy substance at rough surface, the material of the reduction surface energy of current use is mainly fluorochemical monomer, but fluorochemical monomer has longer perfluoroalkyl chain (C >=8), their easy oxidation Decomposition in natural environment help the organic pollution of the difficult degradation such as fluoric acid or sulfonyl compound, there is serious harm to environmental and human health impacts; 2) coarse structure is built at super hydrophobic surface, as: sol-gel process, induction phase separation method, Electrospinning Method etc.; Wherein, pass method is compared in the research of sol-gel process, but, prepared preparation method's complexity of superhydrophobic fabric at present by sol-gal process, and the silica gel rete obtained easily comes off, bad mechanical property.
Summary of the invention
In view of this, technical problem to be solved by this invention is to provide a kind of superhydrophobic fabric and preparation method thereof, and the preparation method of superhydrophobic fabric provided by the invention is simple, and the hydrophobic surface difficult drop-off of the hydrophobic fabric obtained, good mechanical property.
The invention provides a kind of preparation method of superhydrophobic fabric, comprising:
1) by the MTMS of hydrolysis and ammoniacal liquor hybrid reaction, Silica hydrogel is obtained;
2) Silica hydrogel Ultrasonic Pulverization is become Silica hydrogel solution, add textiles dipping, obtain the textiles flooding Silica hydrogel;
3) flood in the textiles immersion dimethyl silicone polymer solution of dipping Silica hydrogel, obtain superhydrophobic fabric.
Preferably, the MTMS of described hydrolysis prepares in accordance with the following methods:
By methyl trimethoxy oxygen radical siloxane, methyl alcohol and oxalic acid solution mixed hydrolysis, obtain the methyl trimethoxy oxygen radical siloxane be hydrolyzed.
Preferably, the volume ratio of described methyl trimethoxy oxygen radical siloxane and described methyl alcohol is 1:(5 ~ 30).
Preferably, the concentration of described ammoniacal liquor is 5 ~ 14mol/L.
Preferably, described step 2) Ultrasonic Pulverization in, described ultrasonic power is 500 ~ 700W.
Preferably, described dimethyl silicone polymer solution is the tetrahydrofuran solution of dimethyl silicone polymer.
Preferably, in the tetrahydrofuran solution of described dimethyl silicone polymer, the mass fraction of described dimethyl silicone polymer is 1.0 ~ 4.0wt%.
Preferably, also containing curing agent in the tetrahydrofuran solution of described dimethyl silicone polymer, described curing agent is elastomer silicone curing agent.
Preferably, the volume ratio of described curing agent and described dimethyl silicone polymer is (0.8 ~ 1.6): 10.
Present invention also offers the superhydrophobic fabric that a kind of preparation method of the present invention prepares.
Compared with prior art, the invention provides a kind of superhydrophobic fabric and preparation method thereof, preparation method provided by the invention, by first by the MTMS of hydrolysis and ammoniacal liquor hybrid reaction, obtains Silica hydrogel, then Silica hydrogel Ultrasonic Pulverization is become Silica hydrogel solution, add textiles dipping, obtain the textiles flooding Silica hydrogel, and then flood in the textiles immersion dimethyl silicone polymer solution of dipping Silica hydrogel, obtain superhydrophobic fabric, in the present invention, by using methyl trimethoxy radical siloxane as the raw material preparing Silica hydrogel, textiles through successively the Silica hydrogel solution preparing and dimethyl silicone polymer solution simultaneously, make the hydrophobic surface difficult drop-off of the hydrophobic fabric prepared, and good mechanical property, simultaneously, the water resistance of the superhydrophobic fabric that the present invention obtains and permeability are also fine, experimental result shows, after superhydrophobic fabric provided by the invention washes 5 times, the contact angle of its fabric face and water is still more than 145 °, and the bending stiffness on hydrophobic fabric surface is suitable with blank sample.In addition, preparation method provided by the invention, after having flooded, by directly naturally drying and can obtain super hydrophobic surface, does not need heating, drying, and then greatly reduces production cost, also simplify preparation method.
Accompanying drawing explanation
The SEM figure of the textiles after the dipping Silica hydrogel that Fig. 1 provides for the embodiment of the present invention 1;
The SEM figure of the superhydrophobic fabric that Fig. 2 provides for the embodiment of the present invention 1;
The EDS energy spectrogram of the superhydrophobic fabric that Fig. 3 provides for the embodiment of the present invention 1;
What Fig. 4 provided for the embodiment of the present invention 1 prepares superhydrophobic fabric surface each stage XPS spectrum figure;
The contact angle of the superhydrophobic fabric that Fig. 5 provides for the embodiment of the present invention 1 after washing and SEM figure;
The contact angle of the superhydrophobic fabric that Fig. 6 provides for the embodiment of the present invention 1 after friction and SEM figure;
The SEM figure of the textiles of the dipping Silica hydrogel that Fig. 7 provides for the embodiment of the present invention 2;
The SEM figure of the superhydrophobic fabric that Fig. 8 provides for the embodiment of the present invention 2;
The SEM figure of the textiles of the dipping Silica hydrogel that Fig. 9 provides for the embodiment of the present invention 3;
The SEM figure of the superhydrophobic fabric that Figure 10 provides for the embodiment of the present invention 3;
The SEM figure of the textiles of the stain Silica hydrogel that Figure 11 provides for the embodiment of the present invention 4;
The SEM figure of the superhydrophobic fabric that Figure 12 provides for the embodiment of the present invention 4.
Detailed description of the invention
The invention provides a kind of preparation method of superhydrophobic fabric, comprising:
1) by the MTMS of hydrolysis and ammoniacal liquor hybrid reaction, Silica hydrogel is obtained;
2) Silica hydrogel Ultrasonic Pulverization is become Silica hydrogel solution, add textiles dipping, obtain the textiles flooding Silica hydrogel;
3) flood in the textiles immersion dimethyl silicone polymer solution of dipping Silica hydrogel, obtain superhydrophobic fabric.
According to the present invention, the present invention, by the MTMS of hydrolysis and ammoniacal liquor hybrid reaction, obtains Silica hydrogel; The concentration of described ammoniacal liquor is preferably 5 ~ 14mol/L, is more preferably 5.5 ~ 13.5mol/L, most preferably is 8 ~ 11mol/L; The volume ratio of described MTMS and described ammoniacal liquor is preferably 1:(0.3 ~ 1), be more preferably 1:(0.5 ~ 0.8), most preferably be 1:(0.6 ~ 0.7).Wherein, described hybrid reaction is specially and the MTMS of hydrolysis and the mixed solution of ammoniacal liquor is first stirred 20 ~ 40min, then leaves standstill 30 ~ 50 hours, obtains Silica hydrogel.
The source of the present invention to the MTMS of hydrolysis does not have particular/special requirement, the method of hydrolysising silane well known in the art, the present invention is preferably by methyl trimethoxy oxygen radical siloxane, methyl alcohol and oxalic acid solution mixed hydrolysis, obtain the methyl trimethoxy oxygen radical siloxane be hydrolyzed, wherein, the volume ratio of described methyl trimethoxy oxygen radical siloxane and described methyl alcohol is 1:(5 ~ 30), be more preferably 1:(8 ~ 20), most preferably be 1:(10 ~ 15); The concentration of described oxalic acid is preferably 0.005 ~ 0.015mol/L, is more preferably 0.010 ~ 0.012mol/L; The volume ratio of described methyl trimethoxy oxygen radical siloxane and described oxalic acid solution is preferably 1:(0.3 ~ 0.8), be more preferably 1:(0.5 ~ 0.6); And in order to enable hydrolysis complete, the preferred described hydrolysising condition of the present invention is that mixed solution is stirred 20 ~ 40min, then leaves standstill 15 ~ 30 hours, obtains the methyl trimethoxy oxygen radical siloxane be hydrolyzed.
According to the present invention, Silica hydrogel Ultrasonic Pulverization is become Silica hydrogel solution by the present invention, adds textiles dipping, obtains the textiles flooding Silica hydrogel; Wherein, in described Ultrasonic Pulverization, described ultrasonic power is preferably 500 ~ 700W, is more preferably 550 ~ 650W; The ultrasonic time is preferably 3 ~ 8 minutes, is more preferably 5 ~ 6 minutes; The time of described dipping is preferably 3 ~ 8min, is more preferably 5 ~ 6min; In addition, in the present invention, the kind of the present invention to textiles does not have particular/special requirement, textiles well known in the art, but in order to better form superhydrophobic fabric, the present invention preferably carries out preliminary treatment to textiles, described preliminary treatment is washed through deionization washing and EtOH Sonicate successively by textiles, obtains pretreated textiles.
In the present invention, in order to better carry out follow-up preparation, the textiles of dipping Silica hydrogel preferably dries by the present invention, and the present invention does not have particular/special requirement to the mode of drying, and room temperature is dried.
According to the present invention, the textiles of dipping Silica hydrogel immerses in dimethyl silicone polymer solution and floods by the present invention, and obtain superhydrophobic fabric, wherein, described dimethyl silicone polymer solution is preferably the tetrahydrofuran solution of dimethyl silicone polymer; In the tetrahydrofuran solution of described dimethyl silicone polymer, the mass fraction of described dimethyl silicone polymer is 1.0 ~ 4.0wt%, is more preferably 2.0 ~ 3.0wt%; Preferably also containing curing agent in the tetrahydrofuran solution of described dimethyl silicone polymer, described curing agent is elastomer silicone curing agent, the volume ratio of described curing agent and described dimethyl silicone polymer is (0.8 ~ 1.6): 10, is more preferably (1.0 ~ 1.2): 10.The time of described dipping is preferably 3 ~ 8min, is more preferably 5 ~ 6min;
In the present invention, after dipping, the present invention is also preferred dries the superhydrophobic fabric obtained or naturally dries, and the temperature of described oven dry is 30 ~ 60 DEG C.
Preparation method provided by the invention, by first by the MTMS of hydrolysis and ammoniacal liquor hybrid reaction, obtains Silica hydrogel; Then Silica hydrogel Ultrasonic Pulverization is become Silica hydrogel solution, add textiles dipping, obtain the textiles flooding Silica hydrogel; And then flood in the textiles immersion dimethyl silicone polymer solution of dipping Silica hydrogel, obtain superhydrophobic fabric, in the present invention, by using methyl trimethoxy radical siloxane as the raw material preparing Silica hydrogel, textiles through successively the Silica hydrogel solution preparing and dimethyl silicone polymer solution simultaneously, make the hydrophobic surface difficult drop-off of the hydrophobic fabric prepared, and good mechanical property, meanwhile, the water resistance of superhydrophobic fabric that obtains of the present invention and permeability also fine.In addition, preparation method provided by the invention, after having flooded, by directly naturally drying and can obtain super hydrophobic surface, does not need heating, drying, and then greatly reduces production cost, also simplify preparation method.
Present invention also offers superhydrophobic fabric prepared by a kind of preparation method provided by the invention, superhydrophobic fabric provided by the invention is combined with fabric firmly, difficult drop-off, and pliability and gas permeability all relatively good.
In addition, the letter said in the present invention is called for short, and be the fixing abbreviation in this area, wherein subalphbet literary composition is explained as follows: PDMS: dimethyl silicone polymer; SEM schemes: electron scanning video picture figure; EDS schemes: energy spectrogram; XPS spectrum figure: X-ray photoelectron spectroscopic analysis spectrogram.
Technical scheme below in conjunction with the embodiment of the present invention is clearly and completely described, and obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
The hydrolysis of step one, MTMS (MTMS)
The absolute methanol measuring 17.0ml, in centrifuge tube, then slowly instills 2.0mlMTMS, and then drips the oxalic acid solution of 0.001mol/L of 1.0ml, and solution is through magnetic agitation 20min, and standing 20h makes it fully be hydrolyzed.
Step 2: the formation of Silica hydrogel
In the sufficient solution of silane of said hydrolyzed, slowly drip the ammonia spirit 1.22ml of 5.6mol/L, after magnetic agitation 20min, leave standstill 48h.
Step 3: the preparation of the textiles of dipping Silica hydrogel
First by cotton according to 3*3cm specification cutting 5 pieces, and be placed in beaker through deionized water, the ultrasonic 5min of absolute ethyl alcohol, put into baking oven 80 DEG C of dryings after ultrasonic, cool for subsequent use.Silica hydrogel forms silica gel solution under the effect of cell ultrasonic disintegrator, and ultrasonic power is 650W, and ultrasonic time is 5min, then impregnated in wherein by the COTTON FABRIC after cleaning, takes out and dry after 5min, obtains the textiles flooding Silica hydrogel.
The pattern of the textiles of the dipping Silica hydrogel obtained is detected, the results are shown in Figure the SEM figure of the textiles of the dipping Silica hydrogel that 1, Fig. 1 provides for the embodiment of the present invention 1.
Step 4: the preparation of superhydrophobic fabric
By dipping Silica hydrogel textiles immerse mass fraction be PDMS (THF) solution of 3.0wt% (wherein, curing agent is elastomer silicone curing agent, account for 0.47% of overall solution volume) middle 5min, takes out and dries under the condition of 60 DEG C, obtain superhydrophobic fabric.
The superhydrophobic fabric obtained is detected, the results are shown in Figure the SEM figure of the superhydrophobic fabric that 2, Fig. 2 provides for the embodiment of the present invention 1.
The pattern of the textiles of the dipping Silica hydrogel obtained is detected, see Fig. 3 ~ Fig. 4, the EDS energy spectrogram of the superhydrophobic fabric that Fig. 3 provides for embodiment 1, as can be seen from the figure, the peak treating Si element in test sample is obvious especially, illustrates that fabric face is coated with and has micro-nano structure SiO
2particle rete.
What Fig. 4 provided for the embodiment of the present invention 1 prepares superhydrophobic fabric surface each stage XPS spectrum figure, and wherein ,-cotton is the COTTON FABRIC of not flooding Silica hydrogel, and-cotton+MTMS is the COTTON FABRIC of dipping Silica hydrogel, and-cotton+MTMS+PDMS is superhydrophobic fabric; As can be seen from the figure, there is obvious Si peak in the fabric face through Silica hydrogel dipping, then through the dipping of PDMS solution, Si elemental characteristic peak is strengthened, and illustrates that PDMS has been attached to hydrophobic fabric surface.
Detect the performance of the superhydrophobic fabric obtained, the results are shown in Table 1, table 1 is gas permeability and the mechanical performance testing result of the superhydrophobic fabric that the embodiment of the present invention 1 ~ 4 prepares.
The gas permeability of the superhydrophobic fabric that table 1 prepares for the embodiment of the present invention 1 ~ 4 and mechanical performance
Testing result
| Ventilative (mm/s) | Bending stiffness (cm 2/cm) | Whiteness | |
| Blank sample | 256.2 | 0.0752 | 75.66 |
| Embodiment 1 | 145.9 | 0.0669 | 74.93 |
| Embodiment 2 | 181.4 | 0.0781 | 76.38 |
| Embodiment 3 | 120.5 | 0.1020 | 74.47 |
| Embodiment 4 | 152.5 | 0.0781 | 75.31 |
To the superhydrophobic fabric obtained according to GB AATCC2A standard carry out 5 times washing, the results are shown in Figure 5, the contact angle of the superhydrophobic fabric that Fig. 5 provides for the embodiment of the present invention 1 after washing and SEM figure, as can be seen from the figure, after 5 washings, the contact angle of fabric face and water still has more than 145, maintains good hydrophobicity.
The superhydrophobic fabric obtained is carried out frictional experiment on Crockmeter, amount to friction circulate for 50 times and observe its surface topography and contact angle, the results are shown in Figure 6, the contact angle of the superhydrophobic fabric that Fig. 6 provides for the embodiment of the present invention 1 after friction and SEM figure, as can be seen from the figure, after 5 washings, the contact angle of fabric face and water still has more than 145 °, maintains good hydrophobicity.
Embodiment 2
The hydrolysis of step one, MTMS (MTMS)
The absolute methanol measuring 20.0ml, in centrifuge tube, then slowly instills 2.0mlMTMS, and then drips the oxalic acid solution of 0.001mol/L of 1.0ml, and solution is through magnetic agitation 40min, and standing 28h makes it fully be hydrolyzed.
Step 2: the formation of Silica hydrogel
In the sufficient solution of silane of said hydrolyzed, slowly drip the ammonia spirit 1.22ml of 8.4mol/L, after magnetic agitation 30min, leave standstill 60h.
Step 3: the preparation of the textiles of dipping Silica hydrogel
First by cotton according to 3*3cm specification cutting 5 pieces, and be placed in beaker through deionized water, the ultrasonic 5min of absolute ethyl alcohol, put into baking oven 80 DEG C of dryings after ultrasonic, cool for subsequent use.Silica hydrogel forms silica gel solution under the effect of cell ultrasonic disintegrator, and ultrasonic power is 650W, and ultrasonic time is 5min, then impregnated in wherein by the COTTON FABRIC after cleaning, takes out and dry after 5min, obtains the textiles flooding Silica hydrogel.
The pattern of the textiles of the dipping Silica hydrogel obtained is detected, the results are shown in Figure the SEM figure of the textiles after the dipping Silica hydrogel that 7, Fig. 7 provides for the embodiment of the present invention 2.
Step 4: the preparation of superhydrophobic fabric
Solution (wherein super-hydrophobic cotton fabric to be immersed the PDMS (THF) that mass fraction is 1.0wt%, curing agent is elastomer silicone curing agent, account for 0.47% of overall solution volume) middle 5min, takes out and dries under the condition of 60 DEG C, obtain superhydrophobic fabric.
The pattern of the leaching superhydrophobic fabric obtained is detected, the results are shown in Figure the SEM figure of the superhydrophobic fabric that 8, Fig. 8 provides for the embodiment of the present invention 2.
Detect the performance of the superhydrophobic fabric obtained, the results are shown in Table 1, table 1 is gas permeability and the mechanical performance testing result of the superhydrophobic fabric that the embodiment of the present invention 1 ~ 4 prepares.
Embodiment 3
The hydrolysis of step one, MTMS (MTMS)
The absolute methanol measuring 20.0ml, in centrifuge tube, then slowly instills 2.0mlMTMS, and then drips the oxalic acid solution of 0.001mol/L of 1ml, and solution is through magnetic agitation 30min, and standing 24h makes it fully be hydrolyzed.
Step 2: the formation of Silica hydrogel
In the sufficient solution of silane of said hydrolyzed, slowly drip the ammonia spirit 1.22ml of 11.2mol/L, after magnetic agitation 30min, leave standstill 48h.
Step 3: the preparation of the textiles of dipping Silica hydrogel
First by cotton according to 3*3cm specification cutting 5 pieces, and be placed in beaker through deionized water, the ultrasonic 5min of absolute ethyl alcohol, put into baking oven 80 DEG C of dryings after ultrasonic, cool for subsequent use.Silica hydrogel forms silica gel solution under the effect of cell ultrasonic disintegrator, and ultrasonic power is 650W, and ultrasonic time is 5min, then impregnated in wherein by the COTTON FABRIC after cleaning, takes out and dry after 5min, obtains the textiles flooding Silica hydrogel.
The pattern of the textiles of the dipping Silica hydrogel obtained is detected, the results are shown in Figure the SEM figure of the textiles of the stain Silica hydrogel that 9, Fig. 9 provides for the embodiment of the present invention 3.
Step 4: the preparation of superhydrophobic fabric
Solution (wherein super-hydrophobic cotton fabric to be immersed the PDMS (THF) that mass fraction is 4.0wt%, curing agent is elastomer silicone curing agent, account for 0.47% of overall solution volume) middle 5min, takes out and dries under the condition of 60 DEG C, obtain superhydrophobic fabric.
The pattern of the leaching superhydrophobic fabric obtained is detected, the results are shown in Figure 10, the SEM figure of the superhydrophobic fabric that Figure 10 provides for the embodiment of the present invention 3.
Detect the performance of the superhydrophobic fabric obtained, the results are shown in Table 1, table 1 is gas permeability and the mechanical performance testing result of the superhydrophobic fabric that the embodiment of the present invention 1 ~ 4 prepares.
Embodiment 4
The hydrolysis of step one, MTMS (MTMS)
The absolute methanol measuring 23.0ml, in centrifuge tube, then slowly instills 2.0mlMTMS, and then drips the oxalic acid solution of 0.001mol/L of 1.0ml, and solution is through magnetic agitation 30min, and standing 24h makes it fully be hydrolyzed.
Step 2: the formation of Silica hydrogel
In the sufficient solution of silane of said hydrolyzed, slowly drip the ammonia spirit 1.22ml of 11.2mol/L, after magnetic agitation 30min, leave standstill 48h.
Step 3: the preparation of the textiles of dipping Silica hydrogel
First by cotton according to 3*3cm specification cutting 5 pieces, and be placed in beaker through deionized water, the ultrasonic 5min of absolute ethyl alcohol, put into baking oven 80 DEG C of dryings after ultrasonic, cool for subsequent use.Silica hydrogel forms silica gel solution under the effect of cell ultrasonic disintegrator, and ultrasonic power is 650W, and ultrasonic time is 5min, then impregnated in wherein by the COTTON FABRIC after cleaning, takes out and dry after 5min, obtains the textiles flooding Silica hydrogel.
The pattern of the textiles of the dipping Silica hydrogel obtained is detected, the results are shown in Figure 11, the SEM figure of the textiles of the stain Silica hydrogel that Figure 11 provides for the embodiment of the present invention 4.
Step 4: the preparation of superhydrophobic fabric
Solution (wherein super-hydrophobic cotton fabric to be immersed the PDMS (THF) that mass fraction is 2.0wt%, curing agent is elastomer silicone curing agent, account for 0.47% of overall solution volume) middle 5min, takes out and dries under the condition of 60 DEG C, obtain superhydrophobic fabric.
The pattern of the leaching superhydrophobic fabric obtained is detected, the results are shown in Figure 12, the SEM figure of the superhydrophobic fabric that Figure 12 provides for the embodiment of the present invention 4.
Detect the performance of the superhydrophobic fabric obtained, the results are shown in Table 1, table 1 is gas permeability and the mechanical performance testing result of the superhydrophobic fabric that the embodiment of the present invention 1 ~ 4 prepares.
The explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (10)
1. a preparation method for superhydrophobic fabric, comprising:
1) by the MTMS of hydrolysis and ammoniacal liquor hybrid reaction, Silica hydrogel is obtained;
2) Silica hydrogel Ultrasonic Pulverization is become Silica hydrogel solution, add textiles dipping, obtain the textiles flooding Silica hydrogel;
3) flood in the textiles immersion dimethyl silicone polymer solution of dipping Silica hydrogel, obtain superhydrophobic fabric.
2. preparation method according to claim 1, is characterized in that, the MTMS of described hydrolysis prepares in accordance with the following methods:
By methyl trimethoxy oxygen radical siloxane, methyl alcohol and oxalic acid solution mixed hydrolysis, obtain the methyl trimethoxy oxygen radical siloxane be hydrolyzed.
3. preparation method according to claim 2, is characterized in that, the volume ratio of described methyl trimethoxy oxygen radical siloxane and described methyl alcohol is 1:(5 ~ 30).
4. preparation method according to claim 1, is characterized in that, the concentration of described ammoniacal liquor is 5 ~ 14mol/L.
5. preparation method according to claim 1, is characterized in that, described step 2) Ultrasonic Pulverization in, described ultrasonic power is 500 ~ 700W.
6. preparation method according to claim 1, is characterized in that, described dimethyl silicone polymer solution is the tetrahydrofuran solution of dimethyl silicone polymer.
7. preparation method according to claim 6, is characterized in that, in the tetrahydrofuran solution of described dimethyl silicone polymer, the mass fraction of described dimethyl silicone polymer is 1.0 ~ 4.0wt%.
8. preparation method according to claim 6, is characterized in that, also containing curing agent in the tetrahydrofuran solution of described dimethyl silicone polymer, described curing agent is elastomer silicone curing agent.
9. preparation method according to claim 8, is characterized in that, the volume ratio of described curing agent and described dimethyl silicone polymer is (0.8-1.6): 10.
10. the superhydrophobic fabric that the preparation method described in claim 1 ~ 9 any one prepares.
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Cited By (4)
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| CN106930109A (en) * | 2017-03-21 | 2017-07-07 | 天津大学 | A kind of superhydrophobic fibers fabric and preparation method thereof |
| CN107385928A (en) * | 2017-08-04 | 2017-11-24 | 青岛惠陆有机硅有限公司 | A kind of waterproof and breathable new material |
| CN108486895A (en) * | 2018-04-28 | 2018-09-04 | 苏州大学 | A kind of Carlow silk fiber modification process |
| CN109518468A (en) * | 2018-11-13 | 2019-03-26 | 疏博（上海）纳米科技有限公司 | A kind of preparation and application of organosilicon polymer superhydrophobic fabric finishing agent |
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| CN106930109A (en) * | 2017-03-21 | 2017-07-07 | 天津大学 | A kind of superhydrophobic fibers fabric and preparation method thereof |
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| CN108486895B (en) * | 2018-04-28 | 2021-08-03 | 苏州大学 | Carlo silk fiber modification treatment process |
| CN109518468A (en) * | 2018-11-13 | 2019-03-26 | 疏博（上海）纳米科技有限公司 | A kind of preparation and application of organosilicon polymer superhydrophobic fabric finishing agent |
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