CN110904525A - Preparation method of high-strength antibacterial polyurethane fiber - Google Patents
Preparation method of high-strength antibacterial polyurethane fiber Download PDFInfo
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- CN110904525A CN110904525A CN201911241970.XA CN201911241970A CN110904525A CN 110904525 A CN110904525 A CN 110904525A CN 201911241970 A CN201911241970 A CN 201911241970A CN 110904525 A CN110904525 A CN 110904525A
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- polyurethane
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/70—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/006—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers provided for in C08G18/00
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/08—Addition of substances to the spinning solution or to the melt for forming hollow filaments
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Artificial Filaments (AREA)
- Woven Fabrics (AREA)
Abstract
The invention mainly relates to the technical field of fiber processing, and discloses a preparation method of high-strength antibacterial polyurethane fiber, which comprises the following steps: melting treatment, strengthening treatment, antibacterial treatment and spinning forming; according to the preparation method of the high-strength antibacterial polyurethane fiber provided by the invention, the prepared high-strength antibacterial polyurethane fiber has higher strength, soft and comfortable texture, can avoid fluffing and pilling in the use process, improves the strength and wear resistance of the fabric, has a good lasting antibacterial effect and strong washing resistance, and the prepared plant can absorb moisture and ventilate, has the antibacterial and itching relieving effects and is high in wearing comfort level, so that an important material is provided for preparing a new fabric.
Description
Technical Field
The invention mainly relates to the technical field of fiber processing, in particular to a preparation method of high-strength antibacterial polyurethane fiber.
Background
Polyurethane fiber is also called spandex, is a synthetic fiber taking polyurethane as a main component, has high elasticity, can be elongated by 6-7 times, but can be quickly recovered to an initial state along with the disappearance of tension, has better acid and alkali resistance, sweat resistance, seawater resistance, dry washing resistance and wear resistance, is widely used for manufacturing elastic braided fabrics, such as socks, furniture covers, ski coats, sportswear, medical fabrics, belts, military equipment, space suits and the like, has new requirements on the fabrics along with the requirements of people on the fabrics, such as light weight, comfortable and fit wearing, soft texture and the like, has larger and larger proportion of low-titer spandex fabrics in the synthetic fiber fabrics, and also has the advantages of using bare spandex fibers and twisted yarns formed by combining spandex and other fibers, mainly used for various warp-knitted fabrics, weft-knitted fabrics, woven fabrics, elastic fabrics and the like, the sock and the panty hose are made of polyurethane fibers which are indispensable fiber components, but the sock and the panty hose are made of fabrics on feet, so that the antibacterial sock or the panty hose can achieve the effect of relieving itching and resisting bacteria.
The prior patent document CN109402767A discloses a preparation method of antibacterial polyurethane fiber, which specifically discloses that dimethyldiallylammonium chloride and polyurethane are simultaneously dissolved in dimethylformamide, the mixture is uniformly stirred to prepare a spinning solution, and then spinning is carried out, the patent document discloses that dimethyldiallylammonium chloride has good bactericidal performance, so that the polyurethane fiber has lasting bactericidal performance on candida albicans, staphylococcus aureus and escherichia coli, but the common knowledge shows that the conventional use method of dimethyldiallylammonium chloride is used in textile industry, if the dimethyldiallylammonium chloride has good antibacterial effect, the dimethyldiallylammonium chloride is disclosed in textile industry very early, and the added dimethylformamide belongs to 2A class carcinogen and is used for preparing insecticide, and no antidote exists, so that good bactericidal effect can be achieved certainly, but also causes great harm to the human body, so that it is required to prepare high-strength antibacterial polyurethane fiber in consideration of human health and environmental safety.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention aims to provide a preparation method of high-strength antibacterial polyurethane fiber.
A preparation method of high-strength antibacterial polyurethane fiber comprises the following steps:
(1) melting treatment: placing polyurethane in a reaction kettle, heating at the speed of 3-4 ℃/min until the polyurethane is completely molten, and stirring for 35-45 min at a heat preservation speed, so that the post-treatment is facilitated, and the prepared fibers are uniform and consistent in strength, thereby obtaining molten polyurethane;
(2) strengthening treatment: adding isooctyl methacrylate and heptadecafluorodecyltriethoxysilane into molten polyurethane, stirring for 40-50 min at a speed of 80-90 r/min, naturally reducing the temperature to 75-85 ℃, preserving the heat for 20-30 min, heating at a speed of 2-3 ℃/min until the materials are completely molten, grafting the raw materials, improving the strength and anti-pilling effect of the polyurethane, enhancing the wear resistance and tensile property of the fabric, expanding the application range of polyurethane fibers, and obtaining the reinforced polyurethane;
(3) and (3) antibacterial treatment: uniformly mixing nano silver and far infrared ceramic powder, adding monoalkoxy titanate, stirring for 50-60 min at a speed of 110-120 r/min, adding methanol, continuously stirring for 35-45 min, improving the binding capacity of the nano silver and far infrared ceramic powder and polyurethane, filtering, adding the obtained solid powder into reinforced polyurethane, continuously stirring for 70-90 min, enhancing the wear resistance and long-term antibacterial property of polyurethane fiber, avoiding the reduction of the antibacterial property after multiple times of water washing, and simultaneously adding the nano silver and far infrared ceramic powder, which is safe, nontoxic, green and environment-friendly, so as to obtain antibacterial polyurethane;
(4) spinning and forming: the antibacterial polyurethane is placed in a spinning machine, and melt spinning is carried out to obtain hollow fibers, so that the fabric is soft and skin-friendly, absorbs moisture and is breathable, fuzzing and pilling are avoided, the hand feeling of the fabric is improved, the grade of the fabric is improved, and the high-strength antibacterial polyurethane fibers are obtained.
The addition amount of the isooctyl methacrylate in the step (2) is 31-33% of the weight of the polyurethane.
The heptadecafluorodecyltriethoxysilane in the step (2) is added in an amount of 24-26% by weight of the polyurethane.
And (3) adding the nano silver in the step (3) in an amount of 13-15% of the weight of the polyurethane.
And (3) adding the far infrared ceramic powder in the step (3) in an amount of 10-12% of the weight of the polyurethane.
The addition amount of the mono-alkoxy titanate in the step (3) is 17-19% of the weight of the nano silver.
And (3) adding the methanol in the step (3) in an amount which is 3-4 times of the weight of the nano silver.
And (4) spinning, namely obtaining the hollow fiber through special-shaped spinneret holes.
The high-strength antibacterial polyurethane fiber prepared by the preparation method of the high-strength antibacterial polyurethane fiber.
The use method of the high-strength antibacterial polyurethane fiber is used for preparing socks, hats, wristbands, knee pads, woven belts, curtains and swimwear.
The invention has the advantages that: according to the preparation method of the high-strength antibacterial polyurethane fiber, the prepared high-strength antibacterial polyurethane fiber has high strength, soft and comfortable texture, can avoid fluffing and pilling in the use process, improves the strength and wear resistance of fabrics, has a good lasting antibacterial effect and strong washing resistance, and the prepared plant can absorb moisture and ventilate, has the antibacterial and itching relieving effects and is high in wearing comfort level, so that an important material is provided for preparing a new fabric; firstly, polyurethane is fully and slowly melted, so that the post-treatment is convenient, and the prepared fibers are uniform and consistent in strength; adding isooctyl methacrylate and heptadecafluorodecyltriethoxysilane, and fully stirring to graft the raw materials, thereby improving the strength and anti-pilling effect of the polyurethane, enhancing the wear resistance and tensile property of the fabric, and enlarging the application range of the polyurethane fiber; the nano silver and the far infrared ceramic powder are treated, so that the binding capacity of the nano silver and the far infrared ceramic powder and polyurethane is improved, the wear resistance and the long-term antibacterial property of the polyurethane fiber are enhanced, the antibacterial property reduction caused by multiple times of washing is avoided, and meanwhile, the added nano silver and the far infrared ceramic powder are safe, non-toxic, green and environment-friendly; and then, carrying out spinning forming on the antibacterial polyurethane to obtain hollow fibers, so that the fabric is soft and skin-friendly, absorbs moisture and is breathable, fluffing and pilling are avoided, the hand feeling of the fabric is improved, and the grade of the fabric is improved.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a process flow diagram of a preparation method of a high-strength antibacterial polyurethane fiber of the present invention.
Detailed Description
The invention is illustrated by the following specific examples.
Example 1
A preparation method of high-strength antibacterial polyurethane fiber comprises the following steps:
placing polyurethane in a reaction kettle, heating at the speed of 3 ℃/min until the polyurethane is completely molten, preserving heat and stirring for 35min, facilitating post-treatment, and enabling the prepared fibers to have uniform and consistent strength to obtain molten polyurethane; adding isooctyl methacrylate and heptadecafluorodecyltriethoxysilane into the molten polyurethane, wherein the addition amount of isooctyl methacrylate is 31 percent of the weight of the polyurethane, the addition amount of heptadecafluorodecyltriethoxysilane is 24 percent of the weight of the polyurethane, stirring for 40min at 80r/min, naturally reducing the temperature to 75 ℃, preserving the temperature for 20min, heating at the speed of 2 ℃/min until the raw materials are completely molten, grafting the raw materials, improving the strength and anti-pilling effect of the polyurethane, enhancing the wear resistance and tensile property of the fabric, expanding the application range of the polyurethane fiber, and obtaining the reinforced polyurethane; uniformly mixing nano silver and far infrared ceramic powder, wherein the addition amount of the nano silver is 13% of the weight of polyurethane, the addition amount of the far infrared ceramic powder is 10% of the weight of the polyurethane, monoalkoxy titanate is added, the addition amount of the monoalkoxy titanate is 17% of the weight of the nano silver, stirring is carried out for 50min at 110r/min, methanol is added, the addition amount of the monoalkoxy titanate is 3 times of the weight of the nano silver, stirring is continued for 35min, the bonding capability of the nano silver and the far infrared ceramic powder and the polyurethane is improved, filtering is carried out, the obtained solid powder is added into reinforced polyurethane, stirring is continued for 70min, the wear resistance and the long-term antibacterial performance of the polyurethane fiber are enhanced, the antibacterial performance is prevented from being reduced after multiple times of water washing, and meanwhile, the added nano silver and the far infrared; and then placing the antibacterial polyurethane in a spinning machine, carrying out melt spinning, and obtaining hollow fibers through special-shaped spinneret orifices, so that the fabric is soft and skin-friendly, absorbs moisture and is breathable, prevents fluffing and pilling, improves the hand feeling of the fabric, improves the grade of the fabric, and obtains the high-strength antibacterial polyurethane fiber.
The use method of the high-strength antibacterial polyurethane fiber is used for preparing socks, hats, wristbands, knee pads, woven belts, curtains and swimwear.
Example 2
A preparation method of high-strength antibacterial polyurethane fiber comprises the following steps:
putting polyurethane into a reaction kettle, heating at the speed of 3.5 ℃/min until the polyurethane is completely molten, and stirring for 40min at a heat preservation speed, so that the post-treatment is facilitated, and the prepared fibers have uniform and consistent strength to obtain molten polyurethane; adding isooctyl methacrylate and heptadecafluorodecyltriethoxysilane into the molten polyurethane, wherein the addition amount of isooctyl methacrylate is 32 percent of the weight of the polyurethane, the addition amount of heptadecafluorodecyltriethoxysilane is 25 percent of the weight of the polyurethane, stirring for 45min at 85r/min, naturally reducing the temperature to 80 ℃, keeping the temperature for 25min, heating at the speed of 2.5 ℃/min until the materials are completely molten, grafting the raw materials, improving the strength and anti-pilling effect of the polyurethane, enhancing the wear resistance and tensile property of the fabric, expanding the application range of the polyurethane fiber, and obtaining the reinforced polyurethane; uniformly mixing nano silver and far infrared ceramic powder, wherein the addition amount of the nano silver is 14% of the weight of polyurethane, the addition amount of the far infrared ceramic powder is 11% of the weight of the polyurethane, monoalkoxy titanate is added, the addition amount of the monoalkoxy titanate is 18% of the weight of the nano silver, the mixture is stirred for 55min at 115r/min, methanol is added, the addition amount of the monoalkoxy titanate is 3.5 times of the weight of the nano silver, the mixing time is continued for 40min, the bonding capability of the nano silver and the far infrared ceramic powder with the polyurethane is improved, filtering is performed, the obtained solid powder is added into reinforced polyurethane, the mixing time is continued for 80min, the wear resistance and the long-term antibacterial property of the polyurethane fiber are enhanced, the antibacterial property is prevented from being reduced after multiple times of water washing, and the added nano silver and the far; and then placing the antibacterial polyurethane in a spinning machine, carrying out melt spinning, and obtaining hollow fibers through special-shaped spinneret orifices, so that the fabric is soft and skin-friendly, absorbs moisture and is breathable, prevents fluffing and pilling, improves the hand feeling of the fabric, improves the grade of the fabric, and obtains the high-strength antibacterial polyurethane fiber.
The use method of the high-strength antibacterial polyurethane fiber is used for preparing socks, hats, wristbands, knee pads, woven belts, curtains and swimwear.
Example 3
A preparation method of high-strength antibacterial polyurethane fiber comprises the following steps:
putting polyurethane into a reaction kettle, heating at the speed of 4 ℃/min until the polyurethane is completely molten, keeping the temperature and stirring for 45min, facilitating post-treatment, and enabling the prepared fibers to have uniform and consistent strength to obtain molten polyurethane; adding isooctyl methacrylate and heptadecafluorodecyltriethoxysilane into the molten polyurethane, wherein the addition amount of isooctyl methacrylate is 33 percent of the weight of the polyurethane, the addition amount of heptadecafluorodecyltriethoxysilane is 26 percent of the weight of the polyurethane, stirring for 50min at 90r/min, naturally reducing the temperature to 85 ℃, preserving the temperature for 30min, heating to be completely molten at the speed of 3 ℃/min, grafting the raw materials, improving the strength and anti-pilling effect of the polyurethane, enhancing the wear resistance and tensile property of the fabric, expanding the application range of the polyurethane fiber, and obtaining the reinforced polyurethane; uniformly mixing nano silver and far infrared ceramic powder, wherein the addition amount of the nano silver is 15% of the weight of polyurethane, the addition amount of the far infrared ceramic powder is 12% of the weight of the polyurethane, monoalkoxy titanate is added, the addition amount of the monoalkoxy titanate is 19% of the weight of the nano silver, the mixture is stirred for 60min at a speed of 120r/min, methanol is added, the addition amount of the monoalkoxy titanate is 4 times of the weight of the nano silver, the mixing time is continuously 45min, the combining capacity of the nano silver and the far infrared ceramic powder and the polyurethane is improved, filtering is carried out, the obtained solid powder is added into reinforced polyurethane, the mixing time is continuously 90min, the wear resistance and the long-term antibacterial performance of the polyurethane fiber are enhanced, the antibacterial performance is prevented from being reduced after multiple times of water washing, and the added nano silver and; and then placing the antibacterial polyurethane in a spinning machine, carrying out melt spinning, and obtaining hollow fibers through special-shaped spinneret orifices, so that the fabric is soft and skin-friendly, absorbs moisture and is breathable, prevents fluffing and pilling, improves the hand feeling of the fabric, improves the grade of the fabric, and obtains the high-strength antibacterial polyurethane fiber.
The use method of the high-strength antibacterial polyurethane fiber is used for preparing socks, hats, wristbands, knee pads, woven belts, curtains and swimwear.
Control group
A prior patent document CN109402767A discloses a preparation method of antibacterial polyurethane fiber.
The performance parameters of the high-strength antibacterial polyurethane fiber are as follows:
the polyurethane fibers of the examples and the control groups were randomly selected, the performance parameters of the polyurethane fibers of each group were measured according to the method disclosed in patent document CN109402767A, and the bacteriostatic rates of the polyurethane fibers of each group against candida albicans, staphylococcus aureus and escherichia coli were measured according to the method disclosed in patent document CN109402767A after 50 washes, each test was repeated 3 times, the results were averaged, and the performance parameters of the high-strength antibacterial polyurethane fibers are shown in table 1.
Table 1: performance parameters of high strength antimicrobial polyurethane fibers
The results in table 1 show that the high-strength antibacterial polyurethane fibers prepared by the preparation method of the high-strength antibacterial polyurethane fibers in the examples have obviously higher strength than the control group, and the bacteriostasis rate of 3 bacteria after washing for 50 times is obviously higher than that of the control group, so that the high-strength antibacterial polyurethane fibers have stable bacteriostasis, which indicates that the high-strength antibacterial polyurethane fibers provided by the invention have very good strength and bacteriostasis performance.
Claims (10)
1. A preparation method of high-strength antibacterial polyurethane fiber is characterized by comprising the following steps:
(1) melting treatment: putting polyurethane into a reaction kettle, heating at the speed of 3-4 ℃/min until the polyurethane is completely molten, and stirring for 35-45 min under the condition of heat preservation to obtain molten polyurethane;
(2) strengthening treatment: adding isooctyl methacrylate and heptadecafluorodecyltriethoxysilane into molten polyurethane, stirring for 40-50 min at the speed of 80-90 r/min, naturally reducing the temperature to 75-85 ℃, preserving the temperature for 20-30 min, and heating at the speed of 2-3 ℃/min until the polyurethane is completely molten to obtain reinforced polyurethane;
(3) and (3) antibacterial treatment: uniformly mixing nano silver and far infrared ceramic powder, adding monoalkoxy titanate, stirring for 50-60 min at a speed of 110-120 r/min, adding methanol, continuously stirring for 35-45 min, filtering, adding the obtained solid powder into reinforced polyurethane, and continuously stirring for 70-90 min to obtain antibacterial polyurethane;
(4) spinning and forming: and (3) placing the antibacterial polyurethane into a spinning machine, and performing melt spinning to obtain the high-strength antibacterial polyurethane fiber.
2. The method for preparing high-strength antibacterial polyurethane fiber according to claim 1, wherein the isooctyl methacrylate of step (2) is added in an amount of 31-33% by weight of the polyurethane.
3. The method for preparing a high-strength antibacterial polyurethane fiber according to claim 1, wherein the heptadecafluorodecyltriethoxysilane of the step (2) is added in an amount of 24 to 26% by weight based on the weight of the polyurethane.
4. The method for preparing the high-strength antibacterial polyurethane fiber according to claim 1, wherein the nano silver in the step (3) is added in an amount of 13-15% by weight of the polyurethane.
5. The method for preparing the high-strength antibacterial polyurethane fiber according to claim 1, wherein the far infrared ceramic powder in the step (3) is added in an amount of 10-12% by weight of the polyurethane.
6. The preparation method of the high-strength antibacterial polyurethane fiber according to claim 1, wherein the mono-alkoxy titanate in the step (3) is added in an amount of 17-19% by weight of the nano silver.
7. The method for preparing high-strength antibacterial polyurethane fiber according to claim 1, wherein the amount of the methanol added in the step (3) is 3-4 times of the weight of the nano silver.
8. The method of claim 1, wherein the hollow fiber is obtained by spinning in step (4) through a shaped spinneret hole.
9. A high-strength antibacterial polyurethane fiber prepared by the preparation method of the high-strength antibacterial polyurethane fiber according to any one of claims 1 to 8.
10. A method of using the high strength antimicrobial polyurethane fiber of claim 9, which is used for manufacturing socks, hats, wristbands, knee pads, webbings, curtains, swimwear.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911241970.XA CN110904525A (en) | 2019-12-06 | 2019-12-06 | Preparation method of high-strength antibacterial polyurethane fiber |
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| CN201911241970.XA CN110904525A (en) | 2019-12-06 | 2019-12-06 | Preparation method of high-strength antibacterial polyurethane fiber |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111532000A (en) * | 2020-05-12 | 2020-08-14 | 湖南翰坤实业有限公司 | Nano antibacterial heat-dissipation insole material and preparation method thereof |
| CN114892294A (en) * | 2022-05-09 | 2022-08-12 | 西南大学 | Multifunctional polyurethane fiber and preparation method and application thereof |
-
2019
- 2019-12-06 CN CN201911241970.XA patent/CN110904525A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111532000A (en) * | 2020-05-12 | 2020-08-14 | 湖南翰坤实业有限公司 | Nano antibacterial heat-dissipation insole material and preparation method thereof |
| CN114892294A (en) * | 2022-05-09 | 2022-08-12 | 西南大学 | Multifunctional polyurethane fiber and preparation method and application thereof |
| CN114892294B (en) * | 2022-05-09 | 2023-08-29 | 西南大学 | Multifunctional polyurethane fiber and preparation method and application thereof |
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Application publication date: 20200324 |