CN118087124B - Ultrathin fabric capable of breathing, moisture permeation and heat dissipation and application thereof - Google Patents
Ultrathin fabric capable of breathing, moisture permeation and heat dissipation and application thereof Download PDFInfo
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- CN118087124B CN118087124B CN202410481763.6A CN202410481763A CN118087124B CN 118087124 B CN118087124 B CN 118087124B CN 202410481763 A CN202410481763 A CN 202410481763A CN 118087124 B CN118087124 B CN 118087124B
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- 239000004744 fabric Substances 0.000 title claims abstract description 45
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 8
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims description 3
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims abstract description 82
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 54
- 229920000728 polyester Polymers 0.000 claims abstract description 54
- 239000000835 fiber Substances 0.000 claims abstract description 38
- VXTYCJJHHMLIBM-UHFFFAOYSA-N carboxysulfanylformic acid Chemical compound OC(=O)SC(O)=O VXTYCJJHHMLIBM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000009987 spinning Methods 0.000 claims abstract description 13
- 230000035699 permeability Effects 0.000 claims abstract description 7
- 230000032050 esterification Effects 0.000 claims abstract description 6
- 238000005886 esterification reaction Methods 0.000 claims abstract description 6
- 238000006068 polycondensation reaction Methods 0.000 claims abstract description 3
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 238000006243 chemical reaction Methods 0.000 claims description 35
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 30
- 238000003756 stirring Methods 0.000 claims description 21
- 238000001816 cooling Methods 0.000 claims description 20
- ZDZVKPXKLLLOOA-UHFFFAOYSA-N Allylmalonic acid Chemical compound OC(=O)C(C(O)=O)CC=C ZDZVKPXKLLLOOA-UHFFFAOYSA-N 0.000 claims description 19
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 16
- 239000011261 inert gas Substances 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 16
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical group C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 13
- 239000003963 antioxidant agent Substances 0.000 claims description 11
- 230000003078 antioxidant effect Effects 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 11
- 239000003054 catalyst Substances 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 9
- 150000002148 esters Chemical class 0.000 claims description 9
- 239000003504 photosensitizing agent Substances 0.000 claims description 9
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims description 8
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical group [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 8
- 244000028419 Styrax benzoin Species 0.000 claims description 7
- 235000000126 Styrax benzoin Nutrition 0.000 claims description 7
- 235000008411 Sumatra benzointree Nutrition 0.000 claims description 7
- 229960002130 benzoin Drugs 0.000 claims description 7
- 235000019382 gum benzoic Nutrition 0.000 claims description 7
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 6
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 claims description 6
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 6
- 125000005456 glyceride group Chemical group 0.000 claims description 6
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 claims description 6
- 239000004246 zinc acetate Substances 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- VSGNNIFQASZAOI-UHFFFAOYSA-L calcium acetate Chemical compound [Ca+2].CC([O-])=O.CC([O-])=O VSGNNIFQASZAOI-UHFFFAOYSA-L 0.000 claims description 3
- 235000011092 calcium acetate Nutrition 0.000 claims description 3
- 229960005147 calcium acetate Drugs 0.000 claims description 3
- 239000001639 calcium acetate Substances 0.000 claims description 3
- 229940011182 cobalt acetate Drugs 0.000 claims description 3
- QAHREYKOYSIQPH-UHFFFAOYSA-L cobalt(II) acetate Chemical compound [Co+2].CC([O-])=O.CC([O-])=O QAHREYKOYSIQPH-UHFFFAOYSA-L 0.000 claims description 3
- 150000005690 diesters Chemical class 0.000 claims description 3
- 239000004753 textile Substances 0.000 claims description 3
- 150000003568 thioethers Chemical class 0.000 claims description 3
- FIQMHBFVRAXMOP-UHFFFAOYSA-N triphenylphosphane oxide Chemical compound C=1C=CC=CC=1P(C=1C=CC=CC=1)(=O)C1=CC=CC=C1 FIQMHBFVRAXMOP-UHFFFAOYSA-N 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 2
- 229960000314 zinc acetate Drugs 0.000 claims description 2
- 125000004185 ester group Chemical group 0.000 claims 1
- 210000004243 sweat Anatomy 0.000 abstract description 9
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 6
- 230000000844 anti-bacterial effect Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 230000001678 irradiating effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 241000191967 Staphylococcus aureus Species 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 125000000101 thioether group Chemical group 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 201000004624 Dermatitis Diseases 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- DOGJSOZYUGJVKS-UHFFFAOYSA-N glyceryl monothioglycolate Chemical compound OCC(O)COC(=O)CS DOGJSOZYUGJVKS-UHFFFAOYSA-N 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 210000003491 skin Anatomy 0.000 description 1
- 125000003396 thiol group Chemical class [H]S* 0.000 description 1
Abstract
The invention relates to a breathable moisture-permeable heat-dissipating ultrathin fabric and application thereof, wherein the fabric is obtained by spinning modified polyester fibers to form warp yarns and weft yarns and then interweaving the warp yarns and the weft yarns in a one-to-one plain weave mode; wherein, the modified polyester fiber is prepared by taking dicarboxyl thioether product, terephthalic acid and ethylene glycol as raw materials and performing esterification and polycondensation steps. According to the invention, the modified polyester fiber is prepared, and the fiber is spun and then woven into the fabric. Compared with the conventional polyester fabric, the fabric obtained by the invention has the advantages of high strength, good elasticity and good wear resistance, and also has good moisture absorption and air permeability, so that sweat can quickly volatilize through the fabric, and a good refreshing and heat dissipation effect is achieved.
Description
Technical Field
The invention relates to the field of fabrics, in particular to a breathable moisture-permeable heat-dissipating ultrathin fabric and application thereof.
Background
In summer, the human body dissipates heat in a sweat discharging mode when the human body is hot and humid. Sweat is discharged from pores of epidermis of a human body in the form of moisture and spread over the surface of skin of the human body, and the sweat adheres to the surface of the human body, so that the human body feels uncomfortable to some extent. Particularly, after a large amount of exercise, a large amount of sweat is concentrated on the body surface of the sporter, so that the worn clothes are adhered to the body surface of the sporter, thereby not only affecting the comfortable experience of the wearing of the clothes, but also preventing the body from further radiating.
The polyester fabric is very firm and durable, is not easy to deform, is not easy to damage even if repeatedly rubbed, can slow down the scrapping and deforming speed of clothes in summer when the clothes are required to be frequently cleaned, but the moisture permeability of the knitted fabric woven by the polyester fiber is poor, sweat is difficult to evaporate through the polyester fabric in hot and humid summer, meanwhile, the sweat is slow to volatilize on the body surface due to the covering of the polyester fabric, and can cause people to feel stuffy for a long time, so that the skin inflammation can be generated for a long time, and the health of the body is influenced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a breathable moisture-permeable heat-dissipating ultrathin fabric and application thereof.
The aim of the invention is realized by adopting the following technical scheme:
In a first aspect, the invention provides a breathable moisture-permeable heat-dissipating ultrathin fabric, which is obtained by spinning modified polyester fibers to form warp yarns and weft yarns and then interweaving the warp yarns and the weft yarns in a plain weave mode; wherein, the modified polyester fiber is prepared by taking dicarboxyl thioether product, terephthalic acid and ethylene glycol as raw materials and performing esterification and polycondensation steps.
Preferably, the warp yarn has a linear density of 28.2-30.5tex and the weft yarn has a linear density of 33.4-35.6tex.
Preferably, the fabric has a warp density of 88 to 96/inch and a weft density of 74 to 82/inch.
Preferably, the preparation method of the modified polyester fiber comprises the following steps:
s1, adding allyl malonic acid, monothioglycollic glyceride and N, N-dimethylformamide into a reaction bottle, stirring until the mixture is uniform, adding a photosensitizer, carrying out irradiation reaction for 2-4h under an ultraviolet lamp, removing a solvent under reduced pressure after the reaction is finished, washing with hot water for three times, and carrying out vacuum drying to obtain a dicarboxyl thioether product;
s2, mixing a dicarboxyl thioether product, terephthalic acid and ethylene glycol in a reaction kettle, fully mixing, adding a catalyst and an antioxidant, introducing inert gas as a shielding gas, heating to 175-195 ℃, and stirring for reacting for 3-5 hours to obtain an esterification product;
s3, adding an ester exchange agent into the reaction kettle, decompressing to 80-150Pa, heating to 228-240 ℃, stirring and reacting for 5-8h, introducing inert gas to restore to normal pressure, naturally cooling to room temperature, washing the product with ethanol for at least three times, and then drying in vacuum to obtain a modified polyester product;
S4, putting the modified polyester product into a double-screw extruder, performing melt extrusion, spraying through a spray hole of a spinneret plate, and performing spinning, cooling and winding to form the modified polyester fiber.
Preferably, in the step S1, the mass-volume ratio of the allyl malonic acid, the glyceryl monothioglycolate and the N, N-dimethylformamide is (0.7-1.4) g (0.9-1.8) g (10-20) mL.
Preferably, in the step S1, the photosensitizer is benzoin dimethyl ether or benzoin diethyl ether, and the addition amount of the photosensitizer is 2% -8% of the mass of the allylmalonic acid.
Preferably, in the step S1, the power of the ultraviolet lamp is 50-100W, and the wavelength is 365nm.
Preferably, in the step S2, the mass ratio of the dicarboxylic thioether product to the terephthalic acid to the ethylene glycol is 1.14-1.71:2.11-3.17:0.36-0.54.
Preferably, in the step S2, the catalyst is one of zinc acetate, cobalt acetate and calcium acetate, and the addition amount is 3% -7% of the mass of terephthalic acid.
Preferably, in the step S2, the antioxidant is any one or more of 2, 6-di-tert-butyl-4-methylphenol, triphenylphosphine acid diester and triphenylphosphine oxide.
Preferably, in the step S2, the addition amount of the antioxidant is 1.5% -3.5% of the mass of the terephthalic acid.
Preferably, in the step S3, the ester exchanger is tetrabutyl titanate, and the addition amount is 1% -5% of the mass of terephthalic acid in the step S2.
Preferably, in the step S3, the temperature of the melt extrusion is 275-285 ℃; spinning speed is 1200-1600m/min; cooling to 25deg.C by air cooling; the aperture of the spinneret plate is 0.3-0.8mm; the stretching temperature of the winding is 60-80 ℃ and the stretching multiple is 3.5-5.6 times.
In a second aspect, the invention provides application of the breathable moisture-permeable heat-dissipating ultrathin fabric, and the fabric is applied to the fields of sports, medical protection, fire protection, industry and home textile.
The beneficial effects of the invention are as follows:
1. According to the invention, the modified polyester fiber is prepared, and the fiber is spun and then woven into the fabric. Compared with the conventional polyester fabric, the fabric obtained by the invention has the advantages of high strength, good elasticity and good wear resistance, and also has good moisture absorption and air permeability, so that sweat can quickly volatilize through the fabric, and a good refreshing and heat dissipation effect is achieved.
2. The modified polyester fiber prepared by the invention is characterized in that a dicarboxyl thioether product is added in the conventional polyester fiber preparation process to replace part of terephthalic acid to participate in the reaction, so that a large amount of thioether groups and glyceride groups are doped in the prepared fiber. Wherein the glyceride group has stronger hydrophilicity and can quickly absorb sweat; the thioether group has antibacterial property and good stability, and has reinforcing effect on antibacterial property and mechanical strength of the fiber.
3. The dicarboxylic thioether product is prepared through click chemical reaction of double bond in allyl malonic acid and mercapto in monothioglycolate with mercapto-double bond in monothioglycolate with allyl malonic acid and monothioglycolate with monothioglycolate being used as reactants.
Detailed Description
The technical scheme of the invention is described below through specific examples. It is to be understood that the mention of one or more method steps of the present invention does not exclude the presence of other method steps before and after the combination step or that other method steps may be interposed between these explicitly mentioned steps; it should also be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Moreover, unless otherwise indicated, the numbering of the method steps is merely a convenient tool for identifying the method steps and is not intended to limit the order of arrangement of the method steps or to limit the scope of the invention in which the invention may be practiced, as such changes or modifications in their relative relationships may be regarded as within the scope of the invention without substantial modification to the technical matter.
In order to better understand the above technical solution, exemplary embodiments of the present invention are described in more detail below. While exemplary embodiments of the invention are shown, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention is further described with reference to the following examples.
Example 1
A breathe the ultrathin facing material of the moisture-permeable heat dissipation, this facing material adopts modified polyester fiber to spin and forms warp and weft, then interweave according to the plain weave way of going up and down to get; the linear density of the warp yarn is 29.7tex, and the linear density of the weft yarn is 34.6tex; the warp density of the fabric was 92/inch and the weft density was 78/inch.
The preparation method of the modified polyester fiber comprises the following steps:
S1, adding allyl malonic acid, monothioglycolate and N, N-dimethylformamide into a reaction bottle, wherein the mass-volume ratio of the allyl malonic acid to the monothioglycolate to the N, N-dimethylformamide is 1.1g:1.3g:15mL, stirring until the mixture is uniform, adding a photosensitizer benzoin dimethyl ether, wherein the addition amount is 5% of the mass of the allyl malonic acid, irradiating the mixture under an ultraviolet lamp with the power of 100W and the wavelength of 365nm for 3 hours, removing the solvent under reduced pressure after the reaction is finished, washing the mixture with hot water for three times, and drying the mixture in vacuum to obtain a dicarboxyl thioether product;
s2, mixing a dicarboxyl thioether product, terephthalic acid and ethylene glycol in a reaction kettle, wherein the mass ratio of the dicarboxyl thioether product to the terephthalic acid to the ethylene glycol is 1.43:2.64:0.48, adding a catalyst zinc acetate after fully mixing, wherein the addition amount is 5% of the mass of the terephthalic acid, adding an antioxidant 2, 6-di-tert-butyl-4-methylphenol, wherein the addition amount is 2.5% of the mass of the terephthalic acid, introducing inert gas as a shielding gas, heating to 185 ℃, and stirring for reacting for 4 hours to obtain an esterified product;
S3, adding tetrabutyl titanate serving as an ester interchange agent into the reaction kettle, wherein the addition amount is 3% of the mass of terephthalic acid, reducing the pressure to 120Pa, heating to 234 ℃, stirring for reaction for 6 hours, introducing inert gas to return to normal pressure, naturally cooling to room temperature, washing the product with ethanol for at least three times, and drying in vacuum to obtain a modified polyester product;
S4, putting the modified polyester product into a double-screw extruder, carrying out melt extrusion, spraying out at 275-285 ℃ through a spray hole with the aperture of 0.5mm of a spinneret plate, carrying out air cooling at 25 ℃ to form filaments, spinning at 1400m/min, stretching and rolling at 70 ℃, and finally forming the modified polyester fiber, wherein the stretching multiple is 4.6 times.
Example 2
A breathe the ultrathin facing material of the moisture-permeable heat dissipation, this facing material adopts modified polyester fiber to spin and forms warp and weft, then interweave according to the plain weave way of going up and down to get; the linear density of the warp yarn is 30.5tex, and the linear density of the weft yarn is 35.6tex; the warp density of the fabric was 88 pieces/inch and the weft density was 74 pieces/inch.
The preparation method of the modified polyester fiber comprises the following steps:
S1, adding allyl malonic acid, monothioglycollic glyceride and N, N-dimethylformamide into a reaction bottle, wherein the mass volume ratio of the allyl malonic acid to the monothioglycollic glyceride to the N, N-dimethylformamide is 0.7g:0.9g:10mL, stirring until the mixture is uniform, adding a photosensitizer benzoin dimethyl ether, wherein the addition amount is 2% of the mass of the allyl malonic acid, irradiating the mixture under an ultraviolet lamp with the power of 50W and the wavelength of 365nm for 2 hours, removing the solvent under reduced pressure after the reaction is finished, washing the mixture with hot water for three times, and drying the mixture in vacuum to obtain a dicarboxyl thioether product;
S2, mixing a dicarboxyl thioether product, terephthalic acid and ethylene glycol in a reaction kettle, wherein the mass ratio of the dicarboxyl thioether product to the terephthalic acid to the ethylene glycol is 1.14:2.11:0.36, adding a catalyst calcium acetate after fully mixing, wherein the addition amount is 3% of the mass of the terephthalic acid, adding an antioxidant triphenylphosphine oxide, and the addition amount is 1.5% of the mass of the terephthalic acid, introducing inert gas as a shielding gas, heating to 175, and stirring for 3 hours to obtain an esterification product;
S3, adding tetrabutyl titanate serving as an ester interchange agent into the reaction kettle, wherein the addition amount is 1% of the mass of terephthalic acid, reducing the pressure to 80Pa, heating to 228 ℃, stirring and reacting for 5 hours, introducing inert gas to return to normal pressure, naturally cooling to room temperature, washing the product with ethanol for at least three times, and drying in vacuum to obtain a modified polyester product;
S4, putting the modified polyester product into a double-screw extruder, carrying out melt extrusion, spraying out at 275-285 ℃ through a spray hole with the aperture of 0.5mm of a spinneret plate, carrying out air cooling at 25 ℃ to form filaments, spinning at the speed of 1200m/min, stretching and rolling at 60 ℃, and finally forming the modified polyester fiber, wherein the stretching multiple is 3.5 times.
Example 3
A breathe the ultrathin facing material of the moisture-permeable heat dissipation, this facing material adopts modified polyester fiber to spin and forms warp and weft, then interweave according to the plain weave way of going up and down to get; the linear density of the warp yarn is 28.2tex, and the linear density of the weft yarn is 33.4tex; the warp density of the fabric was 96 pieces/inch and the weft density was 82 pieces/inch.
The preparation method of the modified polyester fiber comprises the following steps:
S1, adding allyl malonic acid, monothioglycolate and N, N-dimethylformamide into a reaction bottle, wherein the mass-volume ratio of the allyl malonic acid to the monothioglycolate to the N, N-dimethylformamide is 1.4g:1.8g:20mL, stirring until the mixture is uniform, adding a photosensitizer benzoin diethyl ether, wherein the addition amount is 8% of the mass of the allyl malonic acid, irradiating the mixture under an ultraviolet lamp with the power of 100W and the wavelength of 365nm for reaction for 4 hours, removing the solvent under reduced pressure after the reaction is finished, washing the mixture with hot water for three times, and drying the mixture in vacuum to obtain a dicarboxyl thioether product;
S2, mixing a dicarboxyl thioether product, terephthalic acid and ethylene glycol in a reaction kettle, wherein the mass ratio of the dicarboxyl thioether product to the terephthalic acid to the ethylene glycol is 1.71:3.17:0.54, adding a catalyst cobalt acetate after fully mixing, wherein the addition amount is 7% of the mass of the terephthalic acid, adding an antioxidant triphenylphosphine acid diester, and the addition amount is 3.5% of the mass of the terephthalic acid, introducing inert gas as a shielding gas, heating to 195 ℃, and stirring for reacting for 5 hours to obtain an esterified product;
S3, adding tetrabutyl titanate serving as an ester interchange agent into the reaction kettle, wherein the addition amount is 5% of the mass of terephthalic acid, reducing the pressure to 150Pa, heating to 240 ℃, stirring and reacting for 8 hours, introducing inert gas to return to normal pressure, naturally cooling to room temperature, washing the product with ethanol for at least three times, and drying in vacuum to obtain a modified polyester product;
S4, putting the modified polyester product into a double-screw extruder, carrying out melt extrusion, spraying out at 275-285 ℃ through a spray hole with the aperture of 0.5mm of a spinneret plate, carrying out air cooling at 25 ℃ to form filaments, spinning at the speed of 1600m/min, and stretching and rolling at 80 ℃ with the stretching multiple of 5.6 times to finally form the modified polyester fiber.
Comparative example 1
The ultrathin fabric is different from the ultrathin fabric in the embodiment 1 in that the ultrathin fabric is woven by adopting traditional polyester fibers, wherein the traditional polyester fiber preparation method comprises the following steps:
S1, blending terephthalic acid and ethylene glycol in a reaction kettle, fully mixing the materials, adding a catalyst zinc acetate, wherein the addition amount is 5% of the mass of the terephthalic acid, adding an antioxidant 2, 6-di-tert-butyl-4-methylphenol, wherein the addition amount is 2.5% of the mass of the terephthalic acid, introducing inert gas as a shielding gas, heating to 185 ℃, and stirring for reacting for 4 hours to obtain an esterified product;
S2, adding tetrabutyl titanate serving as an ester interchange agent into the reaction kettle, wherein the addition amount is 3% of the mass of terephthalic acid, reducing the pressure to 120Pa, heating to 234 ℃, stirring for reaction for 6 hours, introducing inert gas to return to normal pressure, naturally cooling to room temperature, washing the product with ethanol for at least three times, and drying in vacuum to obtain a polyester product;
S3, putting the polyester product into a double-screw extruder, carrying out melt extrusion, spraying out at 275-285 ℃ through a spray hole with the aperture of 0.5mm of a spinneret plate, carrying out air cooling at 25 ℃ to form filaments, spinning at 1400m/min, stretching and rolling at 70 ℃, and stretching the filaments by 4.6 times to finally form the traditional polyester fiber.
Comparative example 2
An ultrathin fabric differs from example 1 in that the preparation method of the modified polyester fiber is different, wherein the preparation method of the modified polyester fiber comprises the following steps:
S1, blending allyl malonic acid, terephthalic acid and ethylene glycol in a reaction kettle, fully mixing the allyl malonic acid, the terephthalic acid and the ethylene glycol according to a mass ratio of 1.43:2.64:0.48, adding a catalyst zinc acetate, wherein the addition amount is 5% of the mass of the terephthalic acid, adding an antioxidant 2, 6-di-tert-butyl-4-methylphenol, wherein the addition amount is 2.5% of the mass of the terephthalic acid, introducing inert gas as a shielding gas, heating to 185 ℃, and stirring for reacting for 4 hours to obtain an esterified product;
S2, adding tetrabutyl titanate serving as an ester interchange agent into the reaction kettle, wherein the addition amount is 3% of the mass of terephthalic acid, reducing the pressure to 120Pa, heating to 234 ℃, stirring for reaction for 6 hours, introducing inert gas to return to normal pressure, naturally cooling to room temperature, washing the product with ethanol for at least three times, and drying in vacuum to obtain a polyester product;
S3, putting the polyester product into a double-screw extruder, carrying out melt extrusion, spraying out at 275-285 ℃ through a spray hole with the aperture of 0.5mm of a spinneret plate, carrying out air cooling at 25 ℃ to form filaments, spinning at 1400m/min, stretching and rolling at 70 ℃, and finally forming the modified polyester fiber, wherein the stretching multiple is 4.6 times.
Comparative example 3
An ultrathin fabric differs from example 1 in that the preparation method of the modified polyester fiber is different, wherein the preparation method of the modified polyester fiber comprises the following steps:
S1, mixing gycerine monothioglycolate, terephthalic acid and ethylene glycol in a reaction kettle, fully mixing the gycerine monothioglycolate, the terephthalic acid and the ethylene glycol according to a mass ratio of 1.43:2.64:0.48, adding a catalyst zinc acetate, wherein the addition amount is 5% of the mass of the terephthalic acid, adding an antioxidant 2, 6-di-tert-butyl-4-methylphenol, wherein the addition amount is 2.5% of the mass of the terephthalic acid, introducing inert gas as a shielding gas, heating to 185 ℃, and stirring for reacting for 4 hours to obtain an esterified product;
S2, adding tetrabutyl titanate serving as an ester interchange agent into the reaction kettle, wherein the addition amount is 3% of the mass of terephthalic acid, reducing the pressure to 120Pa, heating to 234 ℃, stirring for reaction for 6 hours, introducing inert gas to return to normal pressure, naturally cooling to room temperature, washing the product with ethanol for at least three times, and drying in vacuum to obtain a polyester product;
S3, putting the polyester product into a double-screw extruder, carrying out melt extrusion, spraying out at 275-285 ℃ through a spray hole with the aperture of 0.5mm of a spinneret plate, carrying out air cooling at 25 ℃ to form filaments, spinning at 1400m/min, stretching and rolling at 70 ℃, and finally forming the modified polyester fiber, wherein the stretching multiple is 4.6 times.
The fabrics prepared in example 1 and comparative examples 1-3 were subjected to performance tests, which included:
Detection of breaking Strength referring to standard GBT 3923.1-2013, under standard atmospheric conditions (20+ -2deg.C, 65+ -5% RH), using an electronic textile strength machine to detect, stretching speed 100mm/min;
The moisture permeability is considered from the two aspects of evaporation rate and moisture permeability, and the detection reference standard GB/T21655.1-2008;
The detection of the ventilation is referred to the standard GB/T5453-1997;
the detection method of the bacteriostasis rate refers to the standard GB/T20944-2007.
The results of the detection are shown in Table 1.
TABLE 1 Performance detection of different fibers
| Example 1 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Warp breaking strength (N) | 286 | 221 | 247 | 210 |
| Weft break strength (N) | 243 | 202 | 215 | 195 |
| Evaporation rate (g/h) | 0.31 | 0.14 | 0.18 | 0.23 |
| Moisture permeability (g/m 2. 24 h) | 3576 | 2527 | 2632 | 2951 |
| Ventilation (mm/s) | 42.5 | 34.1 | 38.8 | 37.3 |
| Coliform bacteria inhibition rate (%) | 93.1 | 72.3 | 74.5 | 84.2 |
| Staphylococcus aureus antibacterial rate (%) | 94.5 | 76.0 | 77.8 | 87.5 |
As can be seen from table 1, the fabric of the embodiment 1 of the invention has higher strength, stronger moisture absorption and ventilation, and better antibacterial rate for escherichia coli and staphylococcus aureus. It can be stated that the fabric prepared in the embodiment 1 of the invention has the advantages of high strength, moisture absorption, ventilation and bacteriostasis.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms should not be understood as necessarily being directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (8)
1. The breathable moisture-permeable heat-dissipating ultrathin fabric is characterized in that modified polyester fibers are adopted for spinning to form warp yarns and weft yarns, and then the warp yarns and the weft yarns are interwoven in a one-to-one plain weave mode to obtain the ultrathin fabric; wherein, the modified polyester fiber is prepared by taking dicarboxyl thioether product, terephthalic acid and ethylene glycol as raw materials through esterification and polycondensation steps;
The preparation method of the modified polyester fiber comprises the following steps:
s1, adding allyl malonic acid, monothioglycollic glyceride and N, N-dimethylformamide into a reaction bottle, stirring until the mixture is uniform, adding a photosensitizer, carrying out irradiation reaction for 2-4h under an ultraviolet lamp, removing a solvent under reduced pressure after the reaction is finished, washing with hot water for three times, and carrying out vacuum drying to obtain a dicarboxyl thioether product;
s2, mixing a dicarboxyl thioether product, terephthalic acid and ethylene glycol in a reaction kettle, fully mixing, adding a catalyst and an antioxidant, introducing inert gas as a shielding gas, heating to 175-195 ℃, and stirring for reacting for 3-5 hours to obtain an esterification product;
s3, adding an ester exchange agent into the reaction kettle, decompressing to 80-150Pa, heating to 228-240 ℃, stirring and reacting for 5-8h, introducing inert gas to restore to normal pressure, naturally cooling to room temperature, washing the product with ethanol for at least three times, and then drying in vacuum to obtain a modified polyester product;
s4, putting the modified polyester product into a double-screw extruder, performing melt extrusion, spraying through a spray hole of a spinneret plate, and performing spinning, cooling and winding to form modified polyester fibers;
In the step S1, the mass volume ratio of the allyl malonic acid, the monothioglycolate and the N, N-dimethylformamide is (0.7-1.4) g (0.9-1.8) g (10-20) mL; in the step S1, the photosensitizer is benzoin dimethyl ether or benzoin diethyl ether, and the addition amount of the photosensitizer is 2% -8% of the mass of the allylmalonic acid.
2. The breathable, moisture permeable and heat dissipating ultrathin fabric according to claim 1, wherein the warp yarn has a linear density of 28.2-30.5tex and the weft yarn has a linear density of 33.4-35.6tex.
3. The breathable, moisture permeable and heat dissipating ultrathin fabric of claim 1, wherein the fabric has a warp density of 88-96/inch and a weft density of 74-82/inch.
4. The breathable, moisture permeable and heat dissipating ultrathin fabric according to claim 1, wherein in the step S2, the mass ratio of dicarboxylic thioether product, terephthalic acid and ethylene glycol is 1.14-1.71:2.11-3.17:0.36-0.54.
5. The ultrathin fabric with the functions of breathing, moisture permeability and heat dissipation according to claim 1, wherein in the step S2, the catalyst is one of zinc acetate, cobalt acetate and calcium acetate; the antioxidant is one or more of 2, 6-di-tert-butyl-4-methylphenol, triphenylphosphine acid diester and triphenylphosphine oxide.
6. The breathable moisture-permeable heat-dissipating ultrathin fabric according to claim 1, wherein in the step S3, the ester exchanger is tetrabutyl titanate, and the addition amount is 1% -5% of the mass of terephthalic acid in the step S2.
7. The ultrathin breathable, moisture permeable and heat dissipating fabric according to claim 1, wherein in step S3, the temperature of melt extrusion is 275-285 ℃; spinning speed is 1200-1600m/min; cooling to 25deg.C by air cooling; the aperture of the spinneret plate is 0.3-0.8mm; the stretching temperature of the winding is 60-80 ℃ and the stretching multiple is 3.5-5.6 times.
8. The application of the breathable moisture-permeable heat-dissipating ultrathin fabric as defined in claim 1, which is characterized in that the fabric is applied to the fields of sports, medical protection, fire protection and home textile.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102431225A (en) * | 2011-09-02 | 2012-05-02 | 福建省百凯经编实业有限公司 | Moisture absorption and radiation protection laminar compound plus material |
| CN111549531A (en) * | 2020-06-24 | 2020-08-18 | 江苏微笑新材料科技有限公司 | Moisture-absorbing antibacterial polyester fabric and preparation method thereof |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431225A (en) * | 2011-09-02 | 2012-05-02 | 福建省百凯经编实业有限公司 | Moisture absorption and radiation protection laminar compound plus material |
| CN111549531A (en) * | 2020-06-24 | 2020-08-18 | 江苏微笑新材料科技有限公司 | Moisture-absorbing antibacterial polyester fabric and preparation method thereof |
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