CN103114436A - Super-hydrophobic fabric preparation method and super-hydrophobic functional fabric - Google Patents
Super-hydrophobic fabric preparation method and super-hydrophobic functional fabric Download PDFInfo
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- CN103114436A CN103114436A CN2013100745062A CN201310074506A CN103114436A CN 103114436 A CN103114436 A CN 103114436A CN 2013100745062 A CN2013100745062 A CN 2013100745062A CN 201310074506 A CN201310074506 A CN 201310074506A CN 103114436 A CN103114436 A CN 103114436A
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Abstract
The invention relates to a super-hydrophobic fabric preparation method and a super-hydrophobic functional fabric. The method comprises the steps of: step one. preparing stable silicic acid sol; step two. applying the obtained stable silicic acid sol obtained in the step one to the fabric washed by deionized water by steps of soaking, film brushing and drying, and firmly bonding nanoscale silicon dioxide particles on fiber surfaces of the fabric; and step three. modifying organosilane on the surfaces of the silicon dioxide particles obtained in the step two through soaking and drying so as to realize the super-hydrophobic performance, wherein the organosilane at least comprises hexadecyltrimethoxysilane. The invention provides a preparation method of the super-hydrophobic functional fabric with strong adhesive force and environmentally-friendliness; the super-hydrophobic functional fabric prepared by using the method has the function of ultraviolet irradiation resistance and washing resistance; and sodium silicate is used as a raw material in the treatment process of the fabric, and therefore, the production cost is greatly reduced.
Description
Technical field
The present invention relates to preparation method and the corresponding fabric of fabric in a kind of light industry field, particularly relate to a kind of preparation method and super hydrophobic functional fabric of superhydrophobic fabric.
Background technology
The animals and plants of occurring in nature have a lot of peculiar phenomenons, and super hydrophobic surface is wherein a kind of.Vegeto-animal super hydrophobic surface is to be caused by the rough surface structure that wax is wrapped up.Wax can so that the surface have lower surface can, thereby increase contact angle, and coarse surface texture also can further increase this hydrophobic effect.Because super hydrophobic surface has the properties such as waterproof, anti-pollution, automatically cleaning, thereby enjoys people to pay close attention to.
In prior art, the technology of preparation super hydrophobic surface mainly can be divided into following a few class: the etching method on silicon materials surfaces, sol-gal process, chemical vapour deposition technique, the mechanical stretching method, polymerisation becomes embrane method, template, Electrospinning Method, electrochemical deposition method, and the corroding metal method etc.The common characteristics of these methods are that the surface of preparation has lower surface energy, have again larger roughness simultaneously, thereby cause it to have super-hydrophobic characteristic.But the shortcomings such as above-mentioned prior art also exists the equipment complexity, cost is expensive, preparation condition is harsh, unstable properties.
Summary of the invention
The objective of the invention is to propose that a kind of technique is simple, cost is lower, utilize eco-friendly material to prepare the method with ultra-hydrophobicity fabric, make fabric have uvioresistant irradiation and wash durability.
For achieving the above object, the invention provides a kind of preparation method of superhydrophobic fabric, described preparation method comprises the steps: step 1, the stable silica sol of preparation: under continuous stirring condition, dropwise add nitric acid in sodium silicate solution, regulating PH is 7～9, then continues to stir 1～3h; Step 2, with the silica sol of gained in step 1 by soak-step of brush film-oven dry is applied on the fabric of cleaning, nano level silica dioxide granule on the fiber surface strong bonded of fabric; Step 3, by soak-silica particles of step gained in step 2 of oven dry modifies organosilan, realizes ultra-hydrophobicity; Described organosilan comprises the cetyl trimethoxy silane at least.
Preferably, in described step 1, the concentration of described sodium silicate solution is 10～30g/L, and described nitric acid is preferably the red fuming nitric acid (RFNA) of 11～12mL/L, and certainly, described nitric acid also can be replaced by hydrochloric acid or sulfuric acid.
Preferably, in described step 2, first soak 5～30min in the silica sol of fabric gained in step 1 with cleaning, then take out; Dry at 60～100 ° of C temperature; Repeat aforesaid operations at least one times, at last at 60～100 ° of C oven dry 4～6h.
More preferably, in described step 3, it is 6～12h in 2～4% cetyl trimethoxy silane ethanolic solution that the fabric that obtains in step 2 is immersed in volume fraction, dry 6～12h at 60～100 ° of C temperature then, the fabric that obtains having the floride-free super-hydrophobic function.
Another object of the present invention is to provide a kind of super hydrophobic functional fabric, described fabric is to be made by above-mentioned preparation method.
Based on technique scheme, advantage of the present invention is:
The invention provides the preparation method of the stronger and eco-friendly superhydrophobic fabric of a kind of adhesive force, the super hydrophobic functional fabric that namely makes by preparation method of the present invention, be not only a kind of floride-free super-hydrophobic function fabric, and, function and the wash fast function of ultraviolet radiation resisting had; Meanwhile, the present invention selects sodium metasilicate as raw material in the fabric processing procedure, has reduced widely production cost, makes application of the present invention stronger; In addition, the colloidal sol in preparation method of the present invention is aobvious neutral, can the corrosion failure COTTON FABRIC.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the SEM photo of the prepared super hydrophobic functional fabric face of the present invention;
Fig. 2-1st, the droplet morphology on the prepared super hydrophobic functional fabric of the present invention;
Fig. 2-2nd, the top view of Fig. 2-1;
Fig. 2-3rd, the liquid-drop contact angle on the prepared super hydrophobic functional fabric of the present invention;
Fig. 3 is the ultraviolet radiation resisting performance schematic diagram of the prepared super hydrophobic functional fabric of the present invention;
Fig. 4 is the washing durability schematic diagram of the prepared super hydrophobic functional fabric of the present invention.
The specific embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
The preparation method of a kind of superhydrophobic fabric provided by the invention, operation principle of the present invention is: utilize the bionic principle of " lotus leaf effect ", first fabric is carried out surface treatment, make nano particle evenly firmly be combined in fabric face, make its surface roughening; Long chain silane with low-surface-energy is applied on fabric again, prepares floride-free super-hydrophobic uvioresistant irradiation water-wash resistance fabric.
Preparation method of the present invention mainly comprises at least three steps, that is: the preparation silica sol, silica sol be applied to form nano-scale particle on fabric and at the nano-scale particle finishing organosilan of fabric, concrete technical scheme sees also following embodiment.
Embodiment 1:
The 3.76g sodium metasilicate is joined in the 400ml deionized water, even with magnetic stirrer, slowly add the 2.4ml red fuming nitric acid (RFNA), and constantly stir 2h, obtain hydrosol of silicic acid.Record solution PH=7～8, colloidal sol approaches neutral, can the corrosion failure COTTON FABRIC.The red fuming nitric acid (RFNA) that the present invention uses is the red fuming nitric acid (RFNA) of the normal concentration that can buy on market, and preferably, described nitric acid is preferably the red fuming nitric acid (RFNA) of 11～12mL/L, and certainly, described nitric acid also can be replaced by hydrochloric acid or sulfuric acid.
COTTON FABRIC is immersed in 10min in mixing water colloidal sol, and dry 15min in 80 ° of C drying boxes repeats aforesaid operations 2 times, at last at the dry 6h of 80 ° of C.It is 12h in 4% cetyl trimethoxy silane ethanolic solution that the COTTON FABRIC of above-mentioned processing is immersed in volume fraction, dries 12h under 80 ° of C, obtains the floride-free super-hydrophobic function fabric.
Another object of the present invention is to provide a kind of super hydrophobic functional fabric, described fabric is to be made by above-mentioned preparation method.Described fabric can be the various fabrics such as cotton fiber, polyster fibre.In the present embodiment, employing be cotton fiber.
The SEM photo of the super hydrophobic functional fabric face that shown in Fig. 1, said method makes; Liquid in the form of this super hydrophobic functional fabric face and contact angle value as shown in Fig. 2-1, Fig. 2-2 and Fig. 2-3.
By in above-mentioned test accompanying drawing as can be known, cotton fiber surface coverage of the present invention the particle of size at 50-200nm, form certain roughness.Obtain good super-hydrophobic effect after further modifying by organosilan, contact angle reaches 160.5 °, and can hinder and refuse the methylene blue drop.
Fig. 3 and Fig. 4 are ultraviolet radiation resisting performance and the washing durabilitys of prepared super hydrophobic functional fabric.
As seen from the figure, super hydrophobic functional fabric of the present invention still can keep the contact angle of water more than 152 ° at ultraviolet ray irradiation 6h; Clean 10 times in the family expenses washing machine, and after cleaning 30min, still can keep the contact angle of water more than 145 ° at every turn.
To sum up, the super hydrophobic functional fabric that uses preparation method of the present invention to make is compared with other superhydrophobic fabrics of the prior art, mainly has the following advantages:
(1) the super hydrophobic functional fabric of the inventive method preparation has the function of ultraviolet radiation resisting.Its contact angle that still can keep water after ultraviolet ray is shone more than 6h is more than 152 °, and irradiation is 40 days under natural sunshine, still can keep the contact angle of water more than 150 °.
(2) the super hydrophobic functional fabric of the inventive method preparation has wash fast function.Washing machine cleans more than 10 times, cleans 30min at every turn, still can keep the contact angle of water more than 145 °.
(3) after the fabric that makes of super hydrophobic functional fabric of the present invention has ultraviolet radiation resisting and wash fast function, can adapt to the long-time irradiation of strong sunshine, also can resist washing away for a long time of rainwater, more can adapt to abominable natural environment.And can waterproof and dustproof, automatically cleaning, saved a large amount of cleanings and repaired expense, manpower and the time of cost, also reduced the pollution of washing agent to environment.
(4) sodium metasilicate selected of the present invention as raw material, has reduced production cost, and application is stronger.
(5) the present invention has selected without silicon fluoride and has carried out surface treatment, and this organosilan good biocompatibility can not cause the allergic reaction of skin, and can welding (as Ozone in Atmosphere layer etc.).
(6) the floride-free super-hydrophobic function fabric of the present invention's preparation, can be widely used in high-grade fabric, home decoration, outdoor tent and various waterproof cloth, have the opposing adverse circumstances, permanent durable, super-hydrophobic effect keeps permanent effect, has wide market application foreground.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment, the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can modify or the part technical characterictic is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (4)
1. the preparation method of a superhydrophobic fabric, it is characterized in that: described preparation method comprises the steps:
Step 1, the stable silica sol of preparation: under continuous stirring condition, dropwise add nitric acid in sodium silicate solution, regulating PH is 7～9, then continues to stir 1～3h;
Step 2, with the silica sol of gained in step 1 by soak-step of brush film-oven dry is applied on the fabric of cleaning, nano level silica dioxide granule on the fiber surface strong bonded of fabric;
Step 3, by soak-silica particles of step gained in step 2 of oven dry modifies organosilan, realizes ultra-hydrophobicity; Described organosilan comprises the cetyl trimethoxy silane at least.
2. the preparation method of superhydrophobic fabric according to claim 1 is characterized in that: in described step 2, first soak 5～30min in the silica sol with fabric gained in step 1 of cleaning, then take out; Dry at 60～100 ° of C temperature; Repeat aforesaid operations at least one times, at last at 60～100 ° of C oven dry 4～6h.
3. the preparation method of superhydrophobic fabric according to claim 1 and 2, it is characterized in that: in described step 3, it is 6～12h in 2～4% cetyl trimethoxy silane ethanolic solution that the fabric that obtains in step 2 is immersed in volume fraction, then dry 6～12h at 60～100 ° of C temperature, the fabric that obtains having the floride-free super-hydrophobic function.
4. super hydrophobic functional fabric, it is characterized in that: described fabric is to be made by the described preparation method of above-mentioned any one claim.
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Cited By (11)
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|---|---|---|---|---|
| CN103451918A (en) * | 2013-09-03 | 2013-12-18 | 南通大学 | Method for processing fabric of surgical gown with permeability-resisting protection function |
| CN103938432A (en) * | 2014-03-28 | 2014-07-23 | 中国林业科学研究院林产化学工业研究所 | Preparation method of super-hydrophobic cellulose material with micro-nano structure |
| CN104141226A (en) * | 2014-07-30 | 2014-11-12 | 陕西科技大学 | Method for forming super-hydrophobic coating on surface of leather in layer-by-layer assembling mode |
| CN105316932A (en) * | 2015-11-30 | 2016-02-10 | 无锡新德印染制品有限公司 | Preparation method of fabric with super-hydrophobic function |
| WO2016074113A1 (en) * | 2014-11-12 | 2016-05-19 | 江南大学 | Method for preparing super-hydrophobic fabric by sol-gel electrochemical deposition |
| CN105664534A (en) * | 2016-01-19 | 2016-06-15 | 南昌航空大学 | Method or preparing super-hydrophobic cigarette butts applicable to separating oil and water |
| CN108330558A (en) * | 2018-03-08 | 2018-07-27 | 唐卫兵 | A kind of preparation method of the hydrophobic fibre element chitosan nano fiber spinning solution of antibacterial functions |
| CN108797103A (en) * | 2018-06-27 | 2018-11-13 | 南通赛晖科技发展股份有限公司 | A kind of preparation method of the strong anti-pollution fabric based on nanogel processing |
| CN110004711A (en) * | 2019-04-25 | 2019-07-12 | 五邑大学 | The preparation method and bubble agitation device of super-hydrophobic dacron |
| CN114134723A (en) * | 2021-12-08 | 2022-03-04 | 宜兴市伟业印染有限公司 | Dyed fabric with anti-fouling and self-cleaning functions and preparation process thereof |
| CN114514331A (en) * | 2019-10-04 | 2022-05-17 | 皮革加责任有限公司 | Method for the functional treatment of hides |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451918A (en) * | 2013-09-03 | 2013-12-18 | 南通大学 | Method for processing fabric of surgical gown with permeability-resisting protection function |
| CN103451918B (en) * | 2013-09-03 | 2015-02-25 | 南通大学 | Method for processing fabric of surgical gown with permeability-resisting protection function |
| CN103938432A (en) * | 2014-03-28 | 2014-07-23 | 中国林业科学研究院林产化学工业研究所 | Preparation method of super-hydrophobic cellulose material with micro-nano structure |
| CN104141226A (en) * | 2014-07-30 | 2014-11-12 | 陕西科技大学 | Method for forming super-hydrophobic coating on surface of leather in layer-by-layer assembling mode |
| WO2016074113A1 (en) * | 2014-11-12 | 2016-05-19 | 江南大学 | Method for preparing super-hydrophobic fabric by sol-gel electrochemical deposition |
| CN105316932A (en) * | 2015-11-30 | 2016-02-10 | 无锡新德印染制品有限公司 | Preparation method of fabric with super-hydrophobic function |
| CN105664534A (en) * | 2016-01-19 | 2016-06-15 | 南昌航空大学 | Method or preparing super-hydrophobic cigarette butts applicable to separating oil and water |
| CN108330558A (en) * | 2018-03-08 | 2018-07-27 | 唐卫兵 | A kind of preparation method of the hydrophobic fibre element chitosan nano fiber spinning solution of antibacterial functions |
| CN108797103A (en) * | 2018-06-27 | 2018-11-13 | 南通赛晖科技发展股份有限公司 | A kind of preparation method of the strong anti-pollution fabric based on nanogel processing |
| CN110004711A (en) * | 2019-04-25 | 2019-07-12 | 五邑大学 | The preparation method and bubble agitation device of super-hydrophobic dacron |
| CN114514331A (en) * | 2019-10-04 | 2022-05-17 | 皮革加责任有限公司 | Method for the functional treatment of hides |
| CN114134723A (en) * | 2021-12-08 | 2022-03-04 | 宜兴市伟业印染有限公司 | Dyed fabric with anti-fouling and self-cleaning functions and preparation process thereof |
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