One kind being based on TiO2The preparation method of the bionic super-hydrophobic cotton fabric of nanotube
Technical field
The present invention relates to functional fabric technical fields, and in particular to one kind is based on TiO2The bionic super-hydrophobic cotton of nanotube is knitted
The preparation method of object.
Background technique
Super-hydrophobicity refers to that the contact angle of water droplet and the surface of solids is more than a kind of wetting of 150o and roll angle less than 10o
Property.Typical Representative in nature has: lotus leaf, Rice Leaf etc..Super hydrophobic surface due to resist wet, it is anti-stick, automatically cleaning,
The good characteristics such as anticorrosion, ice-covering-proof, antifouling and antibiosis, fluid drag-reduction have wide answer in fields such as weaving, aviation, buildings
Use potentiality.In order to which in the micro-nano rough interfaces of textile fabric surface construction low-surface-energy, main method is by micro-nano at present
Grain arranges to fiber surface the concaveconvex structure for forming similar lotus leaf " mastoid process ".And in fact, other than dot matrix concaveconvex structure, line
The micro-nano array such as rice of property, the micro-nano coarse structure of sheet such as butterfly, network-like coarse structure such as nano fiber non-woven fabric, together
Sample can be the super-drainage structure for realizing the excellent even unidirectional water guide function of ultra-hydrophobicity.However, textile fabric is mainly by having
Machine fiber composition, to strong acid, highly basic poor resistance, soft fabric and surface are rough porous structure, to mechanical property and clothes
Comfort requires height, can not utilize etching, the processing of the methods of plated film.Therefore, the nano superhydrophobic textile fabric of non-dairy lug structure
It is free on always and studies except this visual field.
It is many about the related patents of superhydrophobic fabric at present, if Chinese invention patent is " a kind of super-hydrophobic antibiotic fabric
In preparation method " (CN 108385375A), a kind of preparation method of super-hydrophobic antibiotic fabric is disclosed, this method is at room temperature
Fabric is handled using the Tris buffer solution of dopamine, then fabric is impregnated in silver nitrate, ammonium citrate and boric acid
Mixed solution in, obtain the fabric harsh surface that is constructed by nano silver after taking out drying;Again with floride-free water repellent to nano silver
The fabric harsh surface of construction is post-processed, and fabric low-surface-energy is assigned;As Chinese invention patent is " a kind of graphene-based super thin
In water fabric and preparation method thereof " (CN 107858825A), a kind of preparation method of graphene-based superhydrophobic fabric is disclosed,
This method first carries out surface to graphene oxide with the silane coupling agent of the base containing S-H and is modified, and obtains the modification oxygen of surface base containing S-H
Graphite alkene;Then, at room temperature, modified graphene oxide and end-vinyl dimethyl silicone polymer are dispersed in a solvent simultaneously
Uniform stirring adds crosslinking agent and photoinitiator, continues stirring and forms uniform solution;Finally, using dip coating by fabric
It is immersed in the mixed solution of preparation, by ultraviolet light after taking-up, makes to adhere on modified graphene oxide on the fabric
S-H base and end-vinyl dimethyl silicone polymer on C=C double bond occur mercapto alkene reaction, be finally made graphene-based super thin
Water fabric.But these methods for preparing superhydrophobic fabric have complex steps, the caducous problem of modified layer at present
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of based on TiO2The bionic super-hydrophobic cotton fabric of nanotube
Preparation method, by with silane-modified TiO2Nano material, it is obtained to be based on TiO2The bionic super-hydrophobic cotton fabric of nanotube is not
Only have many advantages, such as good ultra-hydrophobicity, also there is good ventilative, automatically cleaning, uvioresistant, and the company for passing through chemical bond
Meet the TiO that can effectively promote silicon fluoride modification2Fastness between nanotube and cotton fabric improves wearability.
The present invention provides a kind of based on TiO2The preparation method of the bionic super-hydrophobic cotton fabric of nanotube includes following step
It is rapid:
(1) TiO is taken2Nano particle is dissolved in NaOH solution, and ultrasound is at the first time, incites somebody to action after being protected from light the second time of mechanical stirring
Above-mentioned solution, which is placed in hydrothermal reaction kettle, to react;Reaction product distilled water flushing is to pH for 7 later with pickling to supernatant
PH is 1, then is neutral, dry, obtained TiO with distilled water flushing to pH2Nanotube is kept in dark place;
(2) TiO is taken2Nanotube is added in the ethanol solution of silane, the ultrasonic vibration third time;Distilled water, warp is added
Hydrophobization TiO can be obtained in the 4th time of hydrolysis2Nanotube finishing fluid;
(3) cotton fabric is impregnated in hydrophobization TiO under room temperature2In nanotube finishing fluid, taken out simultaneously after impregnating for the 5th time
60 DEG C of drying, obtain super-hydrophobic cotton fabric.
As further improvement of the invention, silane includes perfluoro capryl triethoxysilane, and the ethyl alcohol of the silane is molten
Liquid is volume between 2-10mL, and the mass concentration of the perfluoro capryl triethoxysilane is between 1%-5%.
As further improvement of the invention, the TiO2Nano particle and the mass ratio of the NaOH solution are 1:(80-
100), the TiO2The mass ratio of nanotube and the perfluoro capryl triethoxysilane is (3-6): 1, the distilled water and institute
It states perfluoro capryl triethoxysilane (25-50): 1, the cotton fabric and hydrophobization TiO2The mass ratio of nanotube finishing fluid is
1:(35-45)。
As further improvement of the invention, the cotton fabric and hydrophobization TiO2The bath raio of nanotube finishing fluid is 1:
(35-45), dip time 3-5h.
Improved as of the invention further, in step (1) in the hydrothermal reaction kettle 100-150 DEG C of reaction 24-
48h。
As further improvement of the invention, the ultrasonic power is 500-700W.
As further improvement of the invention, the speed of agitator is 300-500r/min.
As further improvement of the invention, the TiO2The quality of nano particle is between 0.6g~2g.
As further improvement of the invention, the volume of the NaOH solution is between 60mL~180mL, the NaOH
The concentration of solution is between 8-12mol/L.
It is clear to upper layer using 0.1-0.5mol/L HCl pickling in the step (1) as further improvement of the invention
Night pH is 1.
Improved as of the invention further, the first time between 0.5-1h, second time between 12-15h,
The third time, the 4th time, the 5th time was between 3-5h between 1-3h between 1-2h.
The invention has the following beneficial effects: the method for the present invention simple process, prepared cotton fabric not only has well
Ultra-hydrophobicity, also have many advantages, such as good ventilative, automatically cleaning, uvioresistant, and can effectively mention by the connection of chemical bond
Rise the TiO of silicon fluoride modification2Fastness between nanotube and cotton fabric improves wearability, in various bedding, sanitary material
The fields such as material, ornament materials have extremely significant application prospect.
Detailed description of the invention
Fig. 1 is the contact angle figure of dipping front and back cotton fabric.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, the embodiment described is the embodiment of part of representative of the invention, rather than whole embodiments, this field are general
Other all embodiments obtained belong to protection of the invention to logical technical staff without making creative work
Range.
A kind of silane-modified TiO2The preparation method of nanotube super hydrophobic material comprising the steps of:
(1) (0.6-2) gTiO is taken2Nano particle is dissolved in the NaOH solution of (60-180) mL (8-12) mol/L, (500-
Above-mentioned solution is placed in hydrothermal reaction kettle by 700W) ultrasound 0.5-1h after being protected from light mechanical stirring (300-500r/min) 12-15h,
100-150 DEG C of reaction 24-48h;Reaction product distilled water flushing uses (0.1-0.5) mol/LHCl pickling extremely after being 7 to pH
Supernatant pH is 1, then is neutral, dry, obtained TiO with distilled water flushing to pH2Nanotube is kept in dark place;
(2) TiO is taken2It is molten between the ethyl alcohol of 1%-5% that nanotube is added to perfluoro capryl triethoxysilane mass concentration
In liquid (2-10) mL, (500-700W) ultrasonic vibration 1-2h;Distilled water is added, hydrophobization can be obtained through hydrolysis 1-3h
TiO2Nanotube finishing fluid;
(3) 1g cotton fabric is impregnated in (35-45) mL hydrophobization TiO under room temperature2In nanotube finishing fluid, impregnate (3-5h)
It takes out afterwards and 60 DEG C dries, obtain super-hydrophobic cotton fabric.
Embodiment 1 is based on TiO2The preparation of the bionic super-hydrophobic cotton fabric of nanotube
(1) 0.6g TiO is taken2In nano particle and 60mL 12mol/LNaOH solution, 500W ultrasound 1h is protected from light machinery and stirs
Above-mentioned solution is placed in hydrothermal reaction kettle after mixing (300r/min) 15h, hydro-thermal reaction is for 24 hours at 100 DEG C;Reaction product distillation
It is after 7 with 0.5mol/LHCL pickling to supernatant pH is 1 that water, which is flushed to pH, then with distilled water flushing to pH is neutrality,
TiO is made in 150 DEG C of dryings2Nanotube is kept in dark place;
(2) 0.3gTiO is taken2Nanotube is added to 10mL 10g/L perfluoro capryl triethoxysilane and is dissolved in 10mL ethyl alcohol
In, 500W ultrasonic vibration 2h;5g distilled water is added, hydrophobization TiO can be obtained through hydrolysis 3h2Nanotube finishing fluid;
(3) 1g cotton fabric is impregnated in 35mL hydrophobization TiO under room temperature2In nanotube finishing fluid, taken out simultaneously after impregnating 3h
60 DEG C of drying, obtain super-hydrophobic cotton fabric.
Embodiment 2 is based on TiO2The preparation of the bionic super-hydrophobic cotton fabric of nanotube
(1) 1g TiO is weighed2Nano particle is dissolved in 80mL 8mol/L NaOH solution, and 700W ultrasound 30min is protected from light machine
Above-mentioned solution is placed in hydrothermal reaction kettle after tool stirring (500r/min) 12h, hydro-thermal reaction 48h at 150 DEG C;Reaction product is used
Distilled water flushing to pH be 7 after with 0.1mol/LHCL pickling to supernatant PH be 1, then with distilled water flushing to pH be it is neutral,
TiO is made in the 150 DEG C of dryings of above-mentioned product2Nanotube is kept in dark place;
(2) 0.6gTiO is taken2Nanotube is added to 10mL 10g/L perfluoro capryl triethoxysilane and is dissolved in 2mL ethyl alcohol,
700W ultrasonic vibration 1h;2.5g distilled water is added, hydrophobization TiO can be obtained through hydrolysis 1h2Nanotube finishing fluid;
(3) 1g cotton fabric is impregnated in 45mL hydrophobization TiO under room temperature2In nanotube finishing fluid, 60 are taken out after impregnating 5h
DEG C drying, obtain super-hydrophobic cotton fabric.
Embodiment 3 is based on TiO2The preparation of the bionic super-hydrophobic cotton fabric of nanotube
(1) 2g TiO is taken2In nano particle and 180mL 10mol/L NaOH solution, 600W ultrasound 45min is protected from light machinery
Above-mentioned solution is placed in hydrothermal reaction kettle after stirring (400r/min) 13h, 120 DEG C of reaction 36h;Reaction product is rushed with distilled water
It with 0.3mol/LHCL pickling to supernatant pH is 1 that wash pH, which be after 7, then with distilled water flushing to pH is neutrality, 150 DEG C
It is dry, TiO is made2Nanotube is kept in dark place;
(2) 0.45g TiO is taken2Nanotube is added to 10mL 10g/L perfluoro capryl triethoxysilane and is dissolved in 4mL ethyl alcohol
In, 600W ultrasonic vibration 1.5h;4g distilled water is added, hydrophobization TiO can be obtained through hydrolysis 2h2Nanotube finishing fluid;
(3) 1g cotton fabric is impregnated in 40mL hydrophobization TiO under room temperature2In nanotube finishing fluid, taken out simultaneously after impregnating 4h
60 DEG C of drying, obtain super-hydrophobic cotton fabric.
Embodiment 4 is based on TiO2The preparation of the bionic super-hydrophobic cotton fabric of nanotube
(1) 1.5g TiO is taken2In nano particle and 150mL 10mol/L NaOH solution, 600W ultrasound 50min is protected from light machine
Above-mentioned solution is placed in hydrothermal reaction kettle after tool stirring (400r/min) 14h, 130 DEG C of reaction 40h;Reaction product distilled water
It with 0.4mol/LHCL pickling to supernatant pH is 1 that be flushed to pH, which be after 7, then with distilled water flushing to pH is neutrality, 150
TiO is made in DEG C drying2Nanotube is kept in dark place;
(2) 0.45g TiO is taken2Nanotube is added to 10mL 10g/L perfluoro capryl triethoxysilane and is dissolved in 6mL ethyl alcohol
In, 600W ultrasonic vibration 2h;4g distilled water is added, hydrophobization TiO can be obtained through hydrolysis 3h2Nanotube finishing fluid;
(3) 1g cotton fabric is impregnated in 40mL hydrophobization TiO under room temperature2In nanotube finishing fluid, taken out simultaneously after impregnating 4h
60 DEG C of drying, obtain super-hydrophobic cotton fabric.
Those skilled in the art is not under conditions of departing from the spirit and scope of the present invention that claims determine, also
Various modifications can be carried out to the above content.Therefore the scope of the present invention is not limited in above explanation, but by
The range of claims determines.