CN115652498A - Biodegradable composite fabric with high moisture permeability - Google Patents
Biodegradable composite fabric with high moisture permeability Download PDFInfo
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- CN115652498A CN115652498A CN202211363840.5A CN202211363840A CN115652498A CN 115652498 A CN115652498 A CN 115652498A CN 202211363840 A CN202211363840 A CN 202211363840A CN 115652498 A CN115652498 A CN 115652498A
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Abstract
The invention discloses a biodegradable composite fabric with high moisture permeability, and relates to the technical field of textiles. The invention firstly prepares porous nano titanium dioxide, modifies the surface of the titanium dioxide to obtain modified titanium dioxide, grafts the modified titanium dioxide on polyurethane moleculeOn the chain, obtaining TiO 2 Modifying polyurethane by adding TiO 2 Modified polyurethane and cotton fabric are blended to obtain TiO 2 Modified polyester fiber, tiO 2 And carrying out double-layer weaving by blending and spinning the modified polyester fiber and the natural fiber to obtain the biodegradable composite fabric with high moisture permeability. The composite fabric prepared by the invention endows the fabric with excellent high moisture permeability and biodegradability.
Description
Technical Field
The invention relates to the technical field of textiles, in particular to a biodegradable composite fabric with high moisture permeability.
Background
With the development of economy and science and technology, the living standard of people is increasingly improved, and the requirements on clothes are higher and higher. At present, the market share of the surface functional fabric for the research of various large textile institutions is getting larger and larger, and the textile fabric is developed towards the direction of comfort and health in the future. The human body can secrete a large amount of sweat during exercise, and the natural fibers (cotton and hemp) have good moisture absorption and air permeability, however, when the human body sweats or contacts liquid in a large amount, the natural fibers absorb moisture and expand, the water transfer speed is reduced, the air permeability of clothes is reduced, the clothes are adhered to the surface of the skin, and the human body feels cold and wet. The synthetic fiber has excellent moisture-conducting and quick-drying properties, but the moisture-absorbing and water-absorbing properties of the synthetic fiber clothes are poor, sweat on the surface of a human body cannot be quickly discharged, and the sweat is condensed into water drops to be adhered to the surface of the skin, so that the human body has moist heat feeling. Therefore, a fabric with high moisture permeability and quick drying is urgently needed in the market.
Disclosure of Invention
The invention aims to provide a biodegradable composite fabric with high moisture permeability, which solves the following technical problems:
the existing natural fiber has the defects of poor quick-drying performance and poor moisture absorption and air permeability of artificial fibers such as polyester fiber and the like.
The purpose of the invention can be realized by the following technical scheme:
a high moisture permeable biodegradable composite fabric comprises the following raw materials in parts by weight: 50-90 parts of high moisture-permeable fiber and 10-50 parts of cotton fiber, wherein the high moisture-permeable fiber is made of TiO 2 And (3) carrying out electrostatic spinning on the modified polyurethane.
As a further scheme of the invention: the TiO is 2 The preparation method of the modified polyurethane comprises the following steps:
(1) Adding titanium isopropoxide and dodecyl dimethyl tertiary amine into a reaction bottle A, mechanically stirring uniformly, adding deionized water, ultrasonically stirring, adding 30-40% hydrochloric acid aqueous solution, mechanically stirring uniformly, heating to 50-60 ℃, keeping the temperature and standing for 24-30h, placing filter residues obtained by filtering into an oven for aging, washing and drying to obtain a component I;
(2) Adding the component I and deionized water into a reaction bottle B, dispersing, adding chloroacetic acid, heating to 80 ℃, keeping the temperature, dispersing for 0.5-1h, centrifuging, washing and drying to obtain a component II;
(3) Adding the component II, mercaptoethylamine and EDC into a reaction bottle C, stirring, adding dimethyl sulfoxide, dispersing, heating to 35-45 ℃, keeping the temperature for 42-48h, standing, centrifuging, taking the lower-layer solid, washing and drying to obtain a component III;
(4) Adding deionized water and the third component into a reaction bottle D, stirring, adding polyurethane, heating to 60-70 ℃, reacting for 6-8h, adding calcium chloride solution, mechanically stirring uniformly, reacting for 2-6h under heat preservation, washing, and drying to obtain TiO 2 Modified polyurethane.
As a further scheme of the invention: in the step (1), the addition ratio of titanium isopropoxide, dodecyl dimethyl tertiary amine, deionized water and 30-40% hydrochloric acid aqueous solution is 10g:20-3g:200-400mL:2-3mL.
As a further scheme of the invention: in the step (1), the temperature of the oven is raised to 110-130 ℃, and the aging is carried out for 36-42h.
As a further scheme of the invention: in the step (2), the addition ratio of the component I to the deionized water to the chloroacetic acid is 10g:50-100mL:5-15g.
As a further scheme of the invention: in the step (3), the addition amounts of the second component, mercaptoethylamine, EDC and dimethyl sulfoxide are 5-10g:1g:0.5g:50mL.
As a further scheme of the invention: the third component in the step (4): the mass ratio of polyurethane 1:40-50.
The invention has the beneficial effects that:
the invention takes titanium isopropoxide and dodecyl dimethyl tertiary amine as raw materials to prepare a component I, and the component I is nano TiO with a porous structure 2 . According to the invention, abundant hydroxyl on the surface of the component I reacts with chloroacetic acid to perform carboxylation on the surface of titanium dioxide to obtain a component II. And reacting the second component with mercaptoethylamine to graft a large amount of sulfydryl on the surface of the titanium dioxide to obtain a third component. Finally, the three surface sulfydryl of the component is utilizedClick reaction with acrylic acid group of polyurethane to obtain TiO 2 Modified polyurethane. TiO in this application 2 The surface is grafted with a large amount of carboxyl, so that the component has excellent hydrophilic property. The invention utilizes the three components to graft and modify polyurethane to obtain TiO 2 Modified polyurethane, tiO 2 The modified polyurethane is subjected to electrostatic spinning to prepare high moisture-permeable fiber, and the obtained high moisture-permeable fiber and natural fiber are blended to obtain the high moisture-permeable biodegradable composite fabric. Grafted TiO in high-moisture-permeability biodegradable composite fabric 2 When the fabric is contacted with sweat and other liquids, the porous structure has a good capillary moisture-conducting effect, sweat on the surface of the skin of a human body is quickly absorbed, and the fabric has the advantages of good moisture absorption and quick drying.
Detailed Description
The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
TiO 2 The preparation method of the modified polyurethane comprises the following steps:
(1) Adding 10g of titanium isopropoxide and 2g of dodecyl dimethyl tertiary amine into a reaction bottle A, mechanically stirring uniformly, adding 200mL of deionized water, ultrasonically stirring, adding 2mL of 30% hydrochloric acid aqueous solution, mechanically stirring uniformly, heating to 50 ℃, keeping the temperature and standing for 24h, placing filter residues obtained by filtering into an oven, heating the oven to 110 ℃, aging for 36h, washing with water, and drying to obtain a component I;
(2) Adding 10g of the first component and 50mL of deionized water into a reaction bottle B, dispersing, adding 5g of chloroacetic acid, heating to 80 ℃, keeping the temperature and dispersing for 0.5h, centrifuging, washing and drying to obtain a second component;
(3) Adding 5g of component II, 1g of mercaptoethylamine and 0.5g of EDC into a reaction bottle C, stirring, adding 50mL of dimethyl sulfoxide, dispersing, heating to 35 ℃, keeping the temperature for 42h, standing, centrifuging, taking the lower layer of solid, washing and drying to obtain component III;
(4) Adding 10g of polycaprolactone into a reaction kettle, heating to 110 ℃, preserving heat for 1 hour, simultaneously vacuumizing, cooling to 80 ℃, adding 2g of lysine diisocyanate and 0.05g of dibutyltin dilaurate, preserving heat for reaction for 4 hours, adding 0.8g of acrylate and acetone, and preserving heat for reaction for 2 hours to obtain acrylic polyurethane resin;
(5) Adding 10mL of deionized water and 1g of component III into a reaction bottle D, stirring, adding 40g of polyurethane, heating to 60 ℃, reacting for 6 hours, adding a calcium chloride solution, mechanically stirring uniformly, reacting for 2-6 hours in a heat preservation manner, washing and drying to obtain TiO 2 Modified polyurethane.
Example 2
TiO 2 The preparation method of the modified polyurethane comprises the following steps:
(1) Adding 10g of titanium isopropoxide and 2.5g of dodecyl dimethyl tertiary amine into a reaction bottle A, mechanically stirring uniformly, adding 300mL of deionized water, ultrasonically stirring, adding 2mL of 30% hydrochloric acid aqueous solution, mechanically stirring uniformly, heating to 54 ℃, keeping the temperature and standing for 24h, placing filter residue obtained by filtering into an oven, heating the oven to 120 ℃, aging for 39h, washing with water, and drying to obtain a component I;
(2) Adding 10g of the first component and 70mL of deionized water into a reaction bottle B, dispersing, adding 10g of chloroacetic acid, heating to 80 ℃, keeping the temperature and dispersing for 1h, centrifuging, washing and drying to obtain a second component;
(3) Adding 8g of component II, 1g of mercaptoethylamine and 0.5g of EDC into a reaction bottle C, stirring, adding 50mL of dimethyl sulfoxide, dispersing, heating to 40 ℃, keeping the temperature for 45 hours, standing, centrifuging, taking the lower-layer solid, washing and drying to obtain component III;
(4) Adding 10g of polycaprolactone into a reaction kettle, heating to 110 ℃, preserving heat for 1 hour, simultaneously vacuumizing, cooling to 80 ℃, adding 3g of lysine diisocyanate and 0.07g of dibutyltin dilaurate, preserving heat for reaction for 4 hours, adding 1g of acrylate and acetone, and preserving heat for reaction for 3 hours to obtain acrylic polyurethane resin;
(5) Adding 15mL of deionized water and 1g of the third component into a reaction bottle D, stirring, adding 45g of polyurethane, heating to 65 ℃, and reactingAdding calcium chloride solution after 7h, mechanically stirring uniformly, reacting for 4h while keeping the temperature, washing and drying to obtain TiO 2 Modified polyurethane.
Example 3
TiO 2 The preparation method of the modified polyurethane comprises the following steps:
(1) Adding 10g of titanium isopropoxide and 3g of dodecyl dimethyl tertiary amine into a reaction bottle A, mechanically stirring uniformly, adding 400mL of deionized water, ultrasonically stirring, adding 3mL of 30% hydrochloric acid aqueous solution, mechanically stirring uniformly, heating to 60 ℃, keeping the temperature and standing for 30 hours, placing filter residues obtained by filtering into a drying oven, heating the drying oven to 130 ℃, aging for 42 hours, washing and drying to obtain a component I;
(2) Adding 10g of the first component and 100mL of deionized water into a reaction bottle B, dispersing, adding 15g of chloroacetic acid, heating to 80 ℃, keeping the temperature and dispersing for 1h, centrifuging, washing and drying to obtain a second component;
(3) Adding 10g of component II, 1g of mercaptoethylamine and 0.5g of EDC into a reaction bottle C, stirring, adding 50mL of dimethyl sulfoxide, dispersing, heating to 45 ℃, keeping the temperature for 48 hours, standing, centrifuging, taking the lower-layer solid, washing and drying to obtain component III;
(4) Adding 10g of polycaprolactone into a reaction kettle, heating to 110 ℃, preserving heat for 1h, simultaneously vacuumizing, cooling to 80 ℃, adding 4g of lysine diisocyanate and 0.1g of dibutyltin dilaurate, preserving heat for reaction for 4h, adding 1.2g of acrylate and acetone, and preserving heat for reaction for 6h to obtain acrylic polyurethane resin;
(5) Adding 20mL of deionized water and 1g of the third component into a reaction bottle D, stirring, adding 50g of polyurethane, heating to 70 ℃, reacting for 8 hours, adding a calcium chloride solution, mechanically stirring uniformly, reacting for 6 hours in a heat preservation manner, washing and drying to obtain TiO 2 Modified polyurethane.
Example 4
The biodegradable composite fabric with high moisture permeability comprises 80 parts by weight of raw materials of high moisture permeability fiber and 20 parts by weight of cotton fiber, wherein the high moisture permeability fiber is prepared from the TiO prepared in example 1 2 And (3) carrying out electrostatic spinning on the modified polyurethane.
Example 5
A high moisture permeable biodegradable composite fabric comprises the following raw materials in parts by weight: 80 parts high moisture permeable fiber made from the TiO prepared in example 2, 20 parts cotton fiber 2 And (3) carrying out electrostatic spinning on the modified polyurethane.
Example 6
A high moisture permeable biodegradable composite fabric comprises the following raw materials in parts by weight: 80 parts high moisture permeable fiber made from the TiO prepared in example 3, 20 parts cotton fiber 2 And (3) carrying out electrostatic spinning on the modified polyurethane.
Comparative example 1
TiO 2 The preparation method of the modified polyurethane comprises the following steps:
(1) Adding 10g of titanium isopropoxide and 2g of dodecyl dimethyl tertiary amine into a reaction bottle A, mechanically stirring uniformly, adding 200mL of deionized water, ultrasonically stirring, adding 2mL of 30% hydrochloric acid aqueous solution, mechanically stirring uniformly, heating to 50 ℃, keeping the temperature and standing for 24h, placing filter residues obtained by filtering into an oven, heating the oven to 110 ℃, aging for 36h, washing with water, and drying to obtain a component I;
(2) Adding 10g of polycaprolactone into a reaction kettle, heating to 110 ℃, preserving heat for 1h, simultaneously vacuumizing, cooling to 80 ℃, adding 2g of lysine diisocyanate and 0.05g of dibutyltin dilaurate, preserving heat for reaction for 4h, adding 0.8g of acrylate and acetone, and preserving heat for reaction for 2h to obtain acrylic polyurethane resin;
(3) Adding 10mL of deionized water and 1g of the first component into a reaction bottle D, stirring, adding 40g of polyurethane, heating to 60 ℃, reacting for 6 hours, adding a calcium chloride solution, mechanically stirring uniformly, reacting for 2-6 hours in a heat preservation manner, washing and drying to obtain TiO 2 Modified polyurethane.
Comparative example 2
(1) Adding 10g of titanium isopropoxide and 2g of dodecyl dimethyl tertiary amine into a reaction bottle A, mechanically stirring uniformly, adding 200mL of deionized water, ultrasonically stirring, adding 2mL of 30% hydrochloric acid aqueous solution, mechanically stirring uniformly, heating to 50 ℃, keeping the temperature and standing for 24h, placing filter residues obtained by filtering into an oven, heating the oven to 110 ℃, aging for 36h, washing with water, and drying to obtain a component I;
(2) Adding 10g of the first component and 50mL of deionized water into a reaction bottle B, dispersing, adding 5g of chloroacetic acid, heating to 80 ℃, keeping the temperature and dispersing for 0.5h, centrifuging, washing and drying to obtain a second component;
(3) Adding 10g of polycaprolactone into a reaction kettle, heating to 110 ℃, preserving heat for 1 hour, simultaneously vacuumizing, cooling to 80 ℃, adding 2g of lysine diisocyanate and 0.05g of dibutyltin dilaurate, preserving heat for reaction for 4 hours, adding 0.8g of acrylate and acetone, and preserving heat for reaction for 2 hours to obtain acrylic polyurethane resin;
(4) Adding 10mL of deionized water and 1g of the component II into a reaction bottle D, stirring, adding 40g of polyurethane, heating to 60 ℃, reacting for 6 hours, adding a calcium chloride solution, mechanically stirring uniformly, reacting for 2-6 hours in a heat preservation manner, washing and drying to obtain TiO 2 Modified polyurethane.
Comparative example 3
The preparation method of the modified polyurethane comprises the following steps:
adding 10g of polycaprolactone into a reaction kettle, heating to 110 ℃, preserving heat for 1h, simultaneously vacuumizing, cooling to 80 ℃, adding 2g of lysine diisocyanate and 0.05g of dibutyltin dilaurate, preserving heat for reaction for 4h, adding 0.8g of acrylate and acetone, and preserving heat for reaction for 2h to obtain acrylic polyurethane resin;
comparative example 4
The high moisture permeable biodegradable composite fabric comprises 80 parts by weight of raw materials of high moisture permeable fiber and 20 parts by weight of cotton fiber, wherein the high moisture permeable fiber is prepared from TiO prepared in comparative example 1 2 And (3) carrying out electrostatic spinning on the modified polyurethane.
Comparative example 5
The high moisture permeable biodegradable composite fabric comprises 80 parts by weight of raw materials of high moisture permeable fiber and 20 parts by weight of cotton fiber, wherein the high moisture permeable fiber is prepared from TiO prepared in comparative example 2 2 And (3) carrying out electrostatic spinning on the modified polyurethane.
Comparative example 6
The high moisture permeable biodegradable composite fabric comprises 80 parts by weight of raw materials of high moisture permeable fiber and 20 parts by weight of cotton fiber, wherein the high moisture permeable fiber is obtained by electrostatic spinning of modified polyurethane prepared in a comparative example 3.
Performance detection
(1) And (3) detecting the water absorption quick-drying performance:
(1) moisture regain:
according to GB/T9995-1997 determination of moisture content and moisture regain of textile materials, an oven drying method is adopted for testing. The oven method is to weigh the sample wet mass, dry the sample (105 ± 2) ° c in an oven, weigh the dry mass, and calculate the moisture regain by the following formula:
moisture regain = [ (M-M) 0 )/M 0 ]×100％
In the formula: m is the wet mass; m 0 Dry mass. The test results are shown in Table 1.
(2) Wicking height
The wicking height is measured according to FZ/T01071-2008 textile capillary effect test method, wherein each group of samples is 215mm multiplied by 30mm, 3 samples are respectively arranged in the transverse direction and the longitudinal direction, the mass of the pre-tension clamp is (3.00 +/-0.15) g, the water temperature is (20 +/-1) DEG C, the test time is 30min, the environmental temperature is (20 +/-2) DEG C, and the relative humidity is (65 +/-2)%. The test results are shown in Table 1.
(3) Drip spreading time
Part 1 according to GB/T21655.1-2008 assessment of quick moisture absorption dryness: the water drop diffusion time is measured by a single combination test method. A drop of 0.105mL of a water bead was placed on the sample and the time required for the bead to completely penetrate the interior of the fabric was recorded. The test results are shown in Table 1.
(4) Rate of evaporation
Part 1 according to GB/T21655.1-2008 assessment of quick moisture absorption dryness: the evaporation rate is measured by a single-item combined test method, a sample which is dripped with 0.2mL of tertiary water and completely diffused is naturally laid flat and vertically hung in standard atmosphere, the sample is weighed every 5min until the change rate of the weight of two continuous weighing samples is less than 1%, the weight difference of two adjacent measuring samples is recorded as the water evaporation capacity, the water evaporation capacity change curve is made according to the water evaporation capacity for multiple times, and the linear regression equation and the equation slope are obtained by Origin software and are used as the water evaporation rate (g/h). The test results are shown in Table 1.
(5) Moisture permeability
According to GB/T12704.1-2009 part 1 of textile fabric moisture permeability test method, namely a moisture absorption method, a moisture permeable cup filled with a drying agent (anhydrous calcium chloride dried at 160 ℃ for 3 h) and sealed with a sample is placed in a sealed environment with the temperature of 38 +/-2 ℃ and the relative humidity of 90 +/-2 percent of certain circulating air flow (0.3-0.5) m/s, the moisture permeability of the sample is calculated according to the change of the mass of the moisture permeable cup in specific time, and the calculation method is shown as the following formula:
in the formula: t is the moisture permeability, g/m 2 24h; Δ m is the mass difference g between two adjacent weighed samples of the same sample; Δ m 0 G, blank sample quality difference; a is the effective test area in the test of the sample, m 2 This test is 0.00283m 2 And t is the test time, s. The test results are shown in Table 1.
(2) Biodegradability: the biodegradation performance test is carried out by adopting a soil burying method, the soil is degraded for 30 days at room temperature at the soil depth of 40cm (soil environment: total nitrogen 0.83g/kg, total phosphorus 0.20g/kg, organic matter 13.34g/kg, pH5.8), and the weight loss rate of a sample is calculated as the following formula:
weight loss ratio (%) = [ (W) 1 -W 2 )/W 1 ]×100％
In the formula: w is a group of 1 -pre-buried mass of fabric, g; w is a group of 2 -fabric buried mass, g. The results are shown in Table 1.
Table 1: data for testing the Performance of examples 4-6 and comparative examples 4-6
As shown in Table 1, the biodegradable composite fabrics with high moisture permeability prepared in examples 4 to 6 have excellent moisture permeability and quick drying performance, can be naturally degraded, and meet the requirements of textile industry on fabrics.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (6)
1. The biodegradable composite fabric with high moisture permeability is characterized by comprising the following raw materials in parts by weight: 50-90 parts of high moisture permeable fiber and 10-50 parts of cotton fiber, wherein the high moisture permeable fiber is made of TiO 2 And (3) carrying out electrostatic spinning on the modified polyurethane.
2. The biodegradable composite fabric with high moisture permeability as claimed in claim 1, wherein the Ti O is Ti O 2 The preparation method of the modified polyurethane comprises the following steps:
(1) Adding titanium isopropoxide and dodecyl dimethyl tertiary amine into a reaction bottle A, mechanically stirring uniformly, adding deionized water, ultrasonically stirring, adding 30-40% hydrochloric acid aqueous solution, mechanically stirring uniformly, heating to 50-60 ℃, keeping the temperature and standing for 24-30h, placing filter residues obtained by filtering into an oven for aging, washing with water, and drying to obtain a component I;
(2) Adding the component I and deionized water into a reaction bottle B, dispersing, adding chloroacetic acid, heating to 80 ℃, keeping the temperature, dispersing for 0.5-1h, centrifuging, washing and drying to obtain a component II;
(3) Adding the second component, mercaptoethylamine and EDC into a reaction bottle C, stirring, adding dimethyl sulfoxide, dispersing, heating to 35-45 ℃, keeping the temperature for 42-48h, standing, centrifuging, taking the lower-layer solid, washing and drying to obtain a third component;
(4) Adding deionized water and the third component into a reaction bottle D, stirring, adding polyurethane, heating to 60-70 ℃, reacting for 6-8h, adding calcium chloride solution, mechanically stirring uniformly, reacting for 2-6h under heat preservation, washing and drying to obtain Ti O 2 Modified polyurethane.
3. The biodegradable composite fabric with high moisture permeability according to claim 2, wherein the addition ratio of titanium isopropoxide, dodecyl dimethyl tertiary amine, deionized water and 30-40% hydrochloric acid aqueous solution in the step (1) is 10g:2-3g:200-400mL:2-3mL.
4. The biodegradable composite fabric with high moisture permeability according to claim 2, wherein the addition ratio of the component I, the deionized water and the chloroacetic acid in the step (2) is 10g:50-100mL:5-15g.
5. The biodegradable composite fabric with high moisture permeability according to claim 2, wherein the addition amount of the components di, mercaptoethylamine, EDC and dimethyl sulfoxide in the step (3) is 5-10g:1g:0.5g:50mL.
6. The biodegradable composite fabric with high moisture permeability according to claim 2, wherein in the step (4), the components are as follows: the mass ratio of polyurethane is 1:40-50.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116898165A (en) * | 2023-07-12 | 2023-10-20 | 山东大学 | Self-cleaning sterilizing mask based on photocatalysis composite fiber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116898165A (en) * | 2023-07-12 | 2023-10-20 | 山东大学 | Self-cleaning sterilizing mask based on photocatalysis composite fiber |
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