CN110656501A - Hydrophobic modification method of fiber - Google Patents
Hydrophobic modification method of fiber Download PDFInfo
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- CN110656501A CN110656501A CN201910871468.0A CN201910871468A CN110656501A CN 110656501 A CN110656501 A CN 110656501A CN 201910871468 A CN201910871468 A CN 201910871468A CN 110656501 A CN110656501 A CN 110656501A
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- hydrophobic
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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
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
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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
- D06M11/01—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 hydrogen, water or heavy water; with hydrides of metals or complexes thereof; with boranes, diboranes, silanes, disilanes, phosphines, diphosphines, stibines, distibines, arsines, or diarsines or complexes thereof
- D06M11/05—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 hydrogen, water or heavy water; with hydrides of metals or complexes thereof; with boranes, diboranes, silanes, disilanes, phosphines, diphosphines, stibines, distibines, arsines, or diarsines or complexes thereof with water, e.g. steam; with heavy water
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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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/188—Monocarboxylic acids; Anhydrides, halides or salts thereof
-
- 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
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a hydrophobic modification method of fiber, which comprises the steps of firstly spraying a hydrophobic auxiliary agent, fumigating the fiber by saturated steam of a hydrophobic agent, then spraying the hydrophobic auxiliary agent, finally carrying out sealing reaction to carry out hydrophobic modification on the fiber, wherein the two times of spraying of the hydrophobic auxiliary agent are beneficial to improving the modification uniformity of the hydrophobic agent, and simultaneously, the saturated steam is adopted to fumigate the fiber, so that the method is beneficial to stretching and absorption of the fiber, is beneficial to improving the modification uniformity and improving the lasting performance of the fiber modification.
Description
Technical Field
The invention relates to the technical field of fiber hydrophobic modification, in particular to a fiber hydrophobic modification method.
Background
With the increasing demand for versatility of textiles, the functionalization of fibers for textile manufacturing is increasing. The textile fabrics woven by the hydrophobic fibers have great interest and attention due to the characteristics of water resistance, self-cleaning and the like, and are widely applied to various fields of self-cleaning materials, medical materials, oil-water separation and the like.
The prior art methods for hydrophobically modifying fibers are primarily by physical and chemical means. There are two types of preparation methods commonly used: (1) preparing the super-hydrophobic fiber by adopting spinning processes such as polymerization, blending or blending; (2) the hydrophobic coating is constructed on the surface of the fiber by a sol-gel method, an impregnation method, a surface grafting method, a surface deposition method, an electrostatic spinning method, a layer-by-layer self-assembly method and other after-finishing methods.
The applicant finds that the existing chemical methods for hydrophobic modification of fibers are complex, use more chemical reagents, are difficult to recycle, cause new pollution, and are not beneficial to application of the fibers due to poor modification effect of a physical method.
Disclosure of Invention
In view of the above, the present invention is to provide a method for hydrophobic modification of fiber, so as to solve some or all of the disadvantages in the prior art.
The invention provides a hydrophobic modification method of fiber based on the above purpose, which comprises the following steps:
cleaning the fibers, spraying a hydrophobic auxiliary agent on the surfaces of the fibers, irradiating the fibers for 5-20 min by using ultraviolet light, fumigating the fibers in saturated steam of a hydrophobic agent for 10-30 min, taking out the fumigated fibers, spraying the hydrophobic auxiliary agent for the second time, sealing the fibers, carrying out ultrasonic reaction at 80-140 ℃ for 2-3.5 h, taking out the fibers, and air-drying the fibers.
Optionally, the hydrophobic auxiliary agent is a polyurethane emulsion with a concentration of 0.2-1.5% and an acetic acid solution, and the volume ratio of the polyurethane emulsion to the acetic acid solution is 0-5: 1.
Optionally, the ratio of the spraying amount of the hydrophobic auxiliary agent to the liquid-material ratio of the fibers is 0.1-0.8: 1.
Optionally, the hydrophobic agent is a non-siloxane fluorine-containing polymer hydrophobic agent.
Optionally, the relative humidity of the fumigated fibers is 45-60%.
Optionally, the ratio of the spraying amount of the secondary spraying hydrophobic auxiliary agent to the liquid-material ratio of the fibers is 0.5-2.5: 1.
From the above, it can be seen that the hydrophobic modification method for the fiber provided by the invention adopts the steps of firstly spraying the hydrophobic auxiliary agent, fumigating the fiber by saturated steam of the hydrophobic agent, then spraying the hydrophobic auxiliary agent, and finally carrying out a sealing reaction to carry out hydrophobic modification on the fiber, wherein the two times of spraying of the hydrophobic auxiliary agent is beneficial to improving the modification uniformity of the hydrophobic agent, and meanwhile, the saturated steam is adopted to fumigate the fiber, so that on one hand, the fiber is beneficial to unfolding and absorption, on the other hand, the modification uniformity is improved, and the fiber modification durability is improved.
Meanwhile, the measurement of the contact angle of the fiber surface shows that the contact angle of the two times of spraying of the hydrophobic auxiliary agent and the treatment of saturated steam of the hydrophobic agent is smaller than that of the fiber treated by the one time of spraying of the hydrophobic auxiliary agent and the treatment of the saturated steam of the hydrophobic agent, and the fiber has better durability.
Drawings
FIG. 1 is a comparison of fiber hydrophobicity after treatment according to an embodiment of the present invention and that of the prior art;
FIG. 2 is a comparison of the durability of the hydrophobicity of fibers treated according to the examples of the present invention and the prior art.
Detailed Description
In the following description of the embodiments, the detailed description of the present invention, such as the manufacturing processes and the operation and use methods, will be further described in detail to help those skilled in the art to more fully, accurately and deeply understand the inventive concept and technical solutions of the present invention.
It can be known that the chemical method for treating fiber hydrophobicity in the prior art mainly adopts a method of spraying a hydrophobic auxiliary agent once, then directly spraying a hydrophobic agent after ultraviolet irradiation, and then performing a sealing reaction, the treatment method has poor durability of hydrophobic property, the used hydrophobic agent cannot be recycled, new environmental pollution is caused, and the operation is complex, and after a great amount of experimental researches are carried out by an applicant and combined with the performance researches of the fiber, in order to solve all or part of the defects in the prior art, the method for modifying fiber hydrophobicity provided by the invention comprises the following steps:
cleaning the fibers, spraying a hydrophobic auxiliary agent on the surfaces of the fibers, irradiating the fibers for 5-20 min by using ultraviolet light, fumigating the fibers in saturated steam of a hydrophobic agent for 10-30 min, taking out the fumigated fibers, spraying the hydrophobic auxiliary agent for the second time, sealing the fibers, carrying out ultrasonic reaction at 80-140 ℃ for 2-3.5 h, taking out the fibers, and air-drying the fibers.
The method comprises the steps of firstly spraying the hydrophobic auxiliary agent, fumigating the fibers by saturated steam of the hydrophobic agent, then spraying the hydrophobic auxiliary agent, carrying out sealing reaction, carrying out hydrophobic modification on the fibers, wherein the spraying of the hydrophobic auxiliary agent twice is favorable for improving the modification uniformity of the hydrophobic agent, and simultaneously fumigating the fibers by the saturated steam, so that on one hand, the stretching and absorption of the fibers are favorable, on the other hand, the modification uniformity is improved, the improvement on the lasting performance of the fiber modification is favorable, the preparation method in the whole process is simple, meanwhile, the saturated steam of the hydrophobic agent can be continuously used after being cooled, the environmental pollution caused in the use process of a chemical reagent is reduced, and the green environmental protection performance of the fiber modification is improved.
Specifically, the method for hydrophobically modifying a fiber provided in embodiment 1 of the present invention includes the following steps:
sequentially putting detergent, absolute ethyl alcohol and water into an ultrasonic cleaning machine to clean the polyester fiber for 10min, and naturally drying for later use. Then spraying a hydrophobic auxiliary agent mixed by polyurethane emulsion with the volume ratio of 3-1 and the concentration of 0.6% and acetic acid solution on the surface of the fiber, wherein the spraying amount of the hydrophobic auxiliary agent is 0.45:1, the liquid-material ratio of the fiber is 0.45:1, irradiating the sprayed fiber with ultraviolet light for 15min, then putting the fiber irradiated with the ultraviolet light into saturated steam of a non-siloxane fluorine-containing high-molecular hydrophobic agent for fumigation for 20min, the relative humidity of the fumigated fiber is 55%, taking out the fumigated fiber, secondarily spraying the hydrophobic auxiliary agent with the same ratio as the above for the time, wherein the spraying amount of the secondarily sprayed hydrophobic auxiliary agent is 1.25:1 to the liquid-material ratio of the fiber, the ultraviolet light irradiation is not needed, the secondary spraying aims at catalyzing the subsequent sealing reaction rate of the hydrophobic agent, the whole hydrophobic membrane is of a structure of the hydrophobic auxiliary agent, the hydrophobic agent and the hydrophobic auxiliary agent, and fully surrounds the hydrophobic agent, improving the reaction efficiency of the hydrophobing agent, finally sealing the fiber, performing ultrasonic reaction for 3 hours at 120 ℃, taking out, and naturally drying.
Example 2 of the present invention a method for hydrophobically modifying a fiber, which is the same as example 1, except that the hydrophobic additive is an acetic acid solution.
Example 3 of the present invention is the same as example 1 except that the hydrophobic auxiliary agent is 0.2% polyurethane emulsion and acetic acid solution, and the volume ratio of the two is 5: 1.
Example 4 of the present invention is the same as example 1 except that the hydrophobic auxiliary agent is a 1.5% polyurethane emulsion and an acetic acid solution, and the volume ratio of the two is 5: 1.
Example 5 of the present invention is the same as example 1 in the hydrophobic modification method of the fiber, except that the hydrophobic auxiliary agent is the liquid-material ratio of the spraying amount of the hydrophobic auxiliary agent to the fiber is 0.1: 1.
The method for hydrophobic modification of the fiber in embodiment 6 of the invention is the same as in embodiment 1, except that the hydrophobic auxiliary agent is the ratio of the spraying amount of the hydrophobic auxiliary agent to the liquid material of the fiber is 0.8: 1.
Example 7 of the present invention a method of hydrophobically modifying a fiber, similar to example 1, except that the hydrophobic additive was not sprayed twice.
The hydrophobic modification method of the fiber in the embodiment 8 of the invention is the same as the embodiment 1, except that the hydrophobic agent is directly sprayed for treatment.
The embodiment 9 of the invention is the same as the embodiment 1 in the hydrophobic modification method of the fiber, except that the hydrophobic auxiliary agent is not sprayed for the second time, and the hydrophobic agent is directly sprayed for treatment, namely the prior art.
The contact angles of the samples after the above treatments were measured, and the measurement results are shown in table 1, and fig. 1 shows the contact angle of the fibers after the treatment of example 1 and the fibers after the treatment of example 9 as a graph, wherein a is the treatment of example 9, and B is the treatment of example 1.
TABLE 1 measurement results of sample contact
As can be seen from the data in table 1 in conjunction with fig. 1, the fibers treated in the examples of the present invention have a larger contact angle, indicating better hydrophobicity. The two-time spraying of the hydrophobic auxiliary agent is beneficial to the quick reaction of the hydrophobic agent, the reaction is uniform, the formed hydrophobic membrane completely protects the fibers, meanwhile, the fumigation of the saturated hydrophobic agent is beneficial to the absorption of the fibers to the hydrophobic agent, meanwhile, the fumigation is beneficial to the fiber stretching, the coverage uniformity of the hydrophobic membrane is improved, and therefore the hydrophobicity is improved.
The fibers treated in example 1 and example 9 were subjected to a test for the change of contact angle with time, and the test results are shown in table 2, and the change of contact angle is shown in fig. 2.
Table 2 hydrophobic durability measurements
As can be seen from table 1 and fig. 2, the durability of the hydrophobic property of the fiber treated by the embodiment of the present invention is better, and the method provided by the embodiment of the present invention is beneficial to the improvement of the uniformity of the hydrophobic property and the improvement of the durability of the hydrophobic property.
The method of the embodiments of the present invention may also be used for the treatment of polylactic acid fibers.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
The embodiments of the invention are intended to embrace all such alternatives, modifications and variances that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (6)
1. A method for hydrophobically modifying a fiber, comprising the steps of:
cleaning the fibers, spraying a hydrophobic auxiliary agent on the surfaces of the fibers, irradiating the fibers for 5-20 min by using ultraviolet light, fumigating the fibers in saturated steam of a hydrophobic agent for 10-30 min, taking out the fumigated fibers, spraying the hydrophobic auxiliary agent for the second time, sealing the fibers, carrying out ultrasonic reaction at 80-140 ℃ for 2-3.5 h, taking out the fibers, and air-drying the fibers.
2. The method for hydrophobically modifying a fiber according to claim 1, wherein the hydrophobic auxiliary agent is a polyurethane emulsion and an acetic acid solution at a concentration of 0.2-1.5%, and the volume ratio of the polyurethane emulsion to the acetic acid solution is 0-5: 1.
3. The method for hydrophobically modifying fibers according to claim 1 or 2, wherein the liquid-to-material ratio of the spraying amount of the hydrophobic auxiliary agent to the fibers is 0.1-0.8: 1.
4. The method of claim 1, wherein the hydrophobic agent is a non-silicone fluoropolymer hydrophobic agent.
5. The method of claim 1, wherein the relative humidity of the fumigated fiber is 45-60%.
6. The method for hydrophobically modifying a fiber according to claim 1, wherein the ratio of the spraying amount of the secondary spraying hydrophobic auxiliary agent to the liquid-material ratio of the fiber is 0.5-2.5: 1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910871468.0A CN110656501A (en) | 2019-09-16 | 2019-09-16 | Hydrophobic modification method of fiber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910871468.0A CN110656501A (en) | 2019-09-16 | 2019-09-16 | Hydrophobic modification method of fiber |
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| CN110656501A true CN110656501A (en) | 2020-01-07 |
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| CN201910871468.0A Pending CN110656501A (en) | 2019-09-16 | 2019-09-16 | Hydrophobic modification method of fiber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113105821A (en) * | 2020-01-13 | 2021-07-13 | 浙江诚迅新材料有限公司 | High-waterproofness nubuck treating agent and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1367721A (en) * | 1999-09-07 | 2002-09-04 | 宝洁公司 | Process for hydrophobic treatment of water vapour permeable substrates |
| US20100267303A1 (en) * | 2007-11-08 | 2010-10-21 | Aike Wypke Wijpkema | Hydrophobic surface finish and method of application |
| 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 |
| CN106318184A (en) * | 2016-09-21 | 2017-01-11 | 陕西科技大学 | Preparation method of environmental-friendly conductive super-hydrophobic coating |
| CN106377948A (en) * | 2016-08-30 | 2017-02-08 | 康俊平 | Nano fiber coating layer super-hydrophobic self-cleaning air filter core and manufacturing method thereof |
-
2019
- 2019-09-16 CN CN201910871468.0A patent/CN110656501A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1367721A (en) * | 1999-09-07 | 2002-09-04 | 宝洁公司 | Process for hydrophobic treatment of water vapour permeable substrates |
| US20100267303A1 (en) * | 2007-11-08 | 2010-10-21 | Aike Wypke Wijpkema | Hydrophobic surface finish and method of application |
| 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 |
| CN106377948A (en) * | 2016-08-30 | 2017-02-08 | 康俊平 | Nano fiber coating layer super-hydrophobic self-cleaning air filter core and manufacturing method thereof |
| CN106318184A (en) * | 2016-09-21 | 2017-01-11 | 陕西科技大学 | Preparation method of environmental-friendly conductive super-hydrophobic coating |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113105821A (en) * | 2020-01-13 | 2021-07-13 | 浙江诚迅新材料有限公司 | High-waterproofness nubuck treating agent and preparation method thereof |
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Application publication date: 20200107 |