CN112981932A - High-grade pajama fabric and preparation method thereof - Google Patents
High-grade pajama fabric and preparation method thereof Download PDFInfo
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- CN112981932A CN112981932A CN202110222016.7A CN202110222016A CN112981932A CN 112981932 A CN112981932 A CN 112981932A CN 202110222016 A CN202110222016 A CN 202110222016A CN 112981932 A CN112981932 A CN 112981932A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/04—Physical treatment combined with treatment with chemical compounds or elements
- D06M10/06—Inorganic compounds or elements
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D10/00—Pyjamas; Nightdresses
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/06—Thermally protective, e.g. insulating
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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
- C08F259/00—Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group C08F14/00
- C08F259/02—Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group C08F14/00 on to polymers containing chlorine
- C08F259/04—Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group C08F14/00 on to polymers containing chlorine on to polymers of vinyl chloride
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- D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
- D06M11/74—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
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- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/11—Compounds containing epoxy groups or precursors thereof
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Abstract
The invention discloses a high-grade pajama fabric and a preparation method thereof, wherein palm fibers are subjected to heat treatment, and a polylactic acid composite material is added after the heat treatment, so that the quality of the fabric is reduced; the polylactic acid has poor hydrophilicity, is slowly degraded by means of absorbing moisture by sericin, and degradation products can permeate into a human body to participate in metabolism, so that the far infrared light wave wavelength emitted by graphene can slow down the water absorption of sericin and slowly release the absorption effect of skin; the fabric is soaked in the NMMO solution of viscose fibers, a diepoxy cross-linking agent is added, a first layer of film is formed on the surface of the fabric, the moisture absorption and heat conduction performance of the fabric is enhanced at the same time by slowly releasing polylactic acid decomposition products, a second layer of film is formed during post-treatment, the polylactic acid decomposition products can slowly contact human skin, the slow release effect is achieved, after twice alkali-ultrasonic treatment, the contact area of the fiber composite material is increased, and the fabric is softer.
Description
Technical Field
The invention relates to the field of fabrics, in particular to a high-grade pajama fabric and a preparation method thereof.
Background
Nowadays, the definition of fashion clothes is not simple outline and pattern, but the functional clothes meeting the daily wearing of people are taught, so that the functional clothes meeting the wearing comfort and endowing the functional clothes with the function are produced. The importance of pajamas is self-evident when people spend about one third of their time in bed each day.
The research on the heat preservation and health care of the existing pajama fabric is still to be improved, so that the research on preparing the pajama fabric with the heat preservation and health care functions has great development prospect. Therefore, the preparation of the high-grade pajama fabric with excellent heat preservation and health care capabilities is very necessary.
Disclosure of Invention
The invention aims to provide a high-grade pajama fabric to solve the problems in the background technology.
In order to solve the above technical problem, a first aspect of the present invention provides the following technical solutions: the high-grade pajama fabric is characterized by comprising the following raw materials in parts by weight:
50-100 parts of palm fiber, 20-40 parts of viscose fiber, 10-20 parts of polylactic acid, 10-20 parts of sericin powder, 10-20 parts of graphene, 15-30 parts of polylactic acid composite material, 5-10 parts of self-made finishing agent, 5-10 parts of polyvinyl chloride, 5-10 parts of butyl methyl propionate, 8-16 parts of epoxy cross-linking agent and 20-40 parts of NMMO solution.
Preferably, the polylactic acid composite material is a composite material formed by chlorinating polylactic acid by phosphorus pentachloride, reacting with sericin to generate an amide bond, and compounding with reduced graphene oxide.
Preferably, the self-made finishing agent is modified polyvinyl chloride prepared by grafting butyl methyl propionate on polyvinyl chloride molecules.
The second aspect of the present invention provides: a preparation method of high-grade pajama fabric is characterized by comprising the following steps:
the process flow is as follows:
after the first alkali-ultrasonic treatment of the palm fiber, the palm fiber is subjected to heat treatment to prepare the polylactic acid composite material, the first layer of the film of the fabric is prepared, the fabric is subjected to post-treatment, and the second alkali-ultrasonic treatment is carried out.
Preferably, the method comprises the following specific steps:
(1) soaking palm fibers in a 10% sodium hydroxide solution, placing the palm fibers in an ultrasonic cell crusher for ultrasonic treatment, and performing primary alkali-ultrasonic treatment at 360w for 6 hours;
(2) preparing a polylactic acid composite material;
(3) carrying out heat treatment on the palm fibers subjected to the primary alkali-ultrasonic treatment, soaking the palm fibers in an absolute ethyl alcohol solution of a polylactic acid composite material after the heat treatment, fishing out and drying after 5-7 h, and weaving into a fabric;
(4) soaking the fabric in a viscose NMMO solution, adding a diepoxy cross-linking agent, stirring to react fully, and fishing out and drying;
(5) dissolving polyvinyl chloride in cyclohexanone, adding butyl methacrylate, immediately bubbling and filling nitrogen for 5-10 min, and removing supernatant to obtain a self-made finishing agent;
(6) soaking the fabric in a self-made finishing agent, adding a diepoxy cross-linking agent, wherein the volume ratio of the self-made finishing agent to the diepoxy cross-linking agent is 1: 5, stirring and reacting fully, and fishing out and drying;
(7) soaking the fabric in 10% sodium hydroxide solution, performing ultrasonic treatment in an ultrasonic cell crusher, and performing secondary alkali-ultrasonic treatment at 360w for 6h to obtain the final product.
Preferably, in the step (1): in the step (2): the preparation method of the polylactic acid composite material comprises the following steps:
(a) putting polylactic acid into a single-mouth bottle, fully dissolving the polylactic acid under magnetic stirring, quickly adding phosphorus pentachloride in a nitrogen atmosphere to perform condensation reflux for 1h, adding sericin powder into a viscous substance after atmospheric distillation, and reacting for 6-9 h in ice bath to obtain modified polylactic acid;
(b) placing graphite into a reaction container, slowly adding fuming nitric acid, then slowly adding sodium fluosilicate to react for 24 hours, washing 5 times with 5% hydrochloric acid after the reaction is finished, then washing with distilled water until the solution is neutral, stripping the graphene oxide dispersion liquid for 1 hour by ultrasonic equipment, then adding sodium hydroxide as a reducing agent and polyvinylpyrrolidone as a dispersing agent, and reacting for 12 hours under the water bath heating condition of 95 ℃ to obtain the graphene dispersion liquid;
(c) adjusting the pH value of the graphene dispersion liquid to 9 by using ammonia water, adding hydrazine hydrate as a reducing agent, carrying out 150w ultrasonic dispersion for 5min, then carrying out reaction for 1h at 80 ℃, carrying out centrifugation after the reaction to obtain a precipitate, washing the precipitate by using distilled water, carrying out vacuum drying on a solid substance for 48h at 40 ℃, and grinding to obtain reduced graphene oxide;
(d) mixing the modified polylactic acid and the reduced graphene oxide, and carrying out ultrasonic treatment for 1h in an ultrasonic cell crusher under the condition of 200w to obtain the uniformly dispersed polylactic acid composite material.
Preferably, in the step (a): the mass ratio of polylactic acid to phosphorus pentachloride is 10: 1; the mass ratio of the polylactic acid to the sericin powder is 6: 1.
preferably, in the step (b): the volume ratio of the graphite to the nitric acid to the sodium fluoride is 3: 7: 10.
preferably, in the step (4): the mass ratio of the viscose fibers to the NMMO solution is 1: 1; the mass ratio of the viscose fibers to the diepoxy cross-linking agent is 1: 5.
preferably, in the step (5): the mass ratio of the polyvinyl chloride to the cyclohexanone is 1: 3.
compared with the prior art, the invention has the following beneficial effects:
carrying out heat treatment on the palm fiber, and adding the polylactic acid composite material after the heat treatment; the free water and the bound water in the fibers are removed through heat treatment, so that a plurality of air holes are generated inside the fibers, the polylactic acid composite material with adsorption capacity is added before the air holes are closed, the hydroxyl on the polylactic acid and the carboxyl on the fibers are subjected to esterification reaction, the composite material is connected to the palm fibers, and the adsorption capacity and the air holes of the composite material form a closed air bag to reduce the quality of the fabric; the polylactic acid composite material is prepared by chlorinating polylactic acid by phosphorus pentachloride to generate-COCl, wherein a molecular chain contains-COCl groups, the-COCl groups react with amino groups in sericin to generate amido bonds, and then the amido bonds are compounded with reduced graphene oxide to form the composite material.
After the fabric is woven, the fabric is immersed in the NMMO solution of the viscose, and a diepoxy cross-linking agent is added, so that the sericin and the viscose generate a cross-linked structure, a first layer of film is formed on the surface of the fabric, and the moisture absorption and heat conduction performance of the fabric is enhanced while polylactic acid decomposition products are slowly released; during post-treatment, the prepared self-made finishing agent is used for wrapping the modified polyvinyl chloride outside the fabric to form a second layer of film, so that the surface of the fabric is smooth and comfortable; butyl methyl propionate is grafted on polyvinyl chloride molecules, so that the glass transition temperature of the polyvinyl chloride molecules is reduced, the thermal stability of the polyvinyl chloride is improved, the epoxy cross-linking agent is added again, the polyvinyl chloride can be cross-linked with polylactic acid after forming a film on the surface of the fabric, the decomposition speed of the polyvinyl chloride is reduced, the decomposition products of the polyvinyl chloride can slowly contact the skin of a human body, and the slow-release effect is achieved.
Firstly, carrying out primary alkali-ultrasonic treatment on palm fibers, and then carrying out heat treatment to increase the contact area of the fiber composite material; and after the post-treatment is finished, the second alkali-ultrasonic treatment is carried out, and the small amount of HCl decomposed in the preparation of the polyvinyl chloride is neutralized, so that the surface of the fabric is softer and more comfortable.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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 of the 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.
The high-grade pajama fabric is characterized by comprising the following raw materials in parts by weight:
50-100 parts of palm fiber, 20-40 parts of viscose fiber, 10-20 parts of polylactic acid, 10-20 parts of sericin powder, 10-20 parts of graphene, 15-30 parts of polylactic acid composite material, 5-10 parts of self-made finishing agent, 5-10 parts of polyvinyl chloride, 5-10 parts of butyl methyl propionate, 8-16 parts of epoxy cross-linking agent and 20-40 parts of NMMO solution.
Preferably, the polylactic acid composite material is a composite material formed by chlorinating polylactic acid by phosphorus pentachloride, reacting with sericin to generate an amide bond, and compounding with reduced graphene oxide.
Preferably, the self-made finishing agent is modified polyvinyl chloride prepared by grafting butyl methyl propionate on polyvinyl chloride molecules.
The second aspect of the present invention provides: a preparation method of high-grade pajama fabric is characterized by comprising the following steps:
the process flow is as follows:
after the first alkali-ultrasonic treatment of the palm fiber, the palm fiber is subjected to heat treatment to prepare the polylactic acid composite material, the first layer of the film of the fabric is prepared, the fabric is subjected to post-treatment, and the second alkali-ultrasonic treatment is carried out.
Preferably, the method comprises the following specific steps:
(1) soaking palm fibers in a 10% sodium hydroxide solution, placing the palm fibers in an ultrasonic cell crusher for ultrasonic treatment, and performing primary alkali-ultrasonic treatment at 360w for 6 hours;
(2) preparing a polylactic acid composite material;
(3) carrying out heat treatment on the palm fibers subjected to the primary alkali-ultrasonic treatment, soaking the palm fibers in an absolute ethyl alcohol solution of a polylactic acid composite material after the heat treatment, fishing out and drying after 5-7 h, and weaving into a fabric;
(4) soaking the fabric in a viscose NMMO solution, adding a diepoxy cross-linking agent, stirring to react fully, and fishing out and drying;
(5) dissolving polyvinyl chloride in cyclohexanone, adding butyl methacrylate, immediately bubbling and filling nitrogen for 5-10 min, and removing supernatant to obtain a self-made finishing agent;
(6) soaking the fabric in a self-made finishing agent, adding a diepoxy cross-linking agent, wherein the volume ratio of the self-made finishing agent to the diepoxy cross-linking agent is 1: 5, stirring and reacting fully, and fishing out and drying;
(7) soaking the fabric in 10% sodium hydroxide solution, performing ultrasonic treatment in an ultrasonic cell crusher, and performing secondary alkali-ultrasonic treatment at 360w for 6h to obtain the final product.
Preferably, in the step (1): in the step (2): the preparation method of the polylactic acid composite material comprises the following steps:
(a) putting polylactic acid into a single-mouth bottle, fully dissolving the polylactic acid under magnetic stirring, quickly adding phosphorus pentachloride in a nitrogen atmosphere to perform condensation reflux for 1h, adding sericin powder into a viscous substance after atmospheric distillation, and reacting for 6-9 h in ice bath to obtain modified polylactic acid;
(b) placing graphite into a reaction container, slowly adding fuming nitric acid, then slowly adding sodium fluosilicate to react for 24 hours, washing 5 times with 5% hydrochloric acid after the reaction is finished, then washing with distilled water until the solution is neutral, stripping the graphene oxide dispersion liquid for 1 hour by ultrasonic equipment, then adding sodium hydroxide as a reducing agent and polyvinylpyrrolidone as a dispersing agent, and reacting for 12 hours under the water bath heating condition of 95 ℃ to obtain the graphene dispersion liquid;
(c) adjusting the pH value of the graphene dispersion liquid to 9 by using ammonia water, adding hydrazine hydrate as a reducing agent, carrying out 150w ultrasonic dispersion for 5min, then carrying out reaction for 1h at 80 ℃, carrying out centrifugation after the reaction to obtain a precipitate, washing the precipitate by using distilled water, carrying out vacuum drying on a solid substance for 48h at 40 ℃, and grinding to obtain reduced graphene oxide;
(d) mixing the modified polylactic acid and the reduced graphene oxide, and carrying out ultrasonic treatment for 1h in an ultrasonic cell crusher under the condition of 200w to obtain the uniformly dispersed polylactic acid composite material.
Preferably, in the step (a): the mass ratio of polylactic acid to phosphorus pentachloride is 10: 1; the mass ratio of the polylactic acid to the sericin powder is 6: 1.
preferably, in the step (b): the volume ratio of the graphite to the nitric acid to the sodium fluoride is 3: 7: 10.
preferably, in the step (4): the mass ratio of the viscose fibers to the NMMO solution is 1: 1; the mass ratio of the viscose fibers to the diepoxy cross-linking agent is 1: 5.
preferably, in the step (5): the mass ratio of the polyvinyl chloride to the cyclohexanone is 1: 3.
example 1: the first high-grade pajama fabric comprises the following materials:
the high-grade pajama fabric comprises the following components in parts by weight:
the composite material comprises, by weight, 50 parts of palm fibers, 20 parts of viscose fibers, 10 parts of polylactic acid, 10 parts of sericin powder, 10 parts of graphene, 15 parts of polylactic acid composite materials, 5 parts of self-made finishing agents, 5 parts of polyvinyl chloride, 5 parts of butyl methyl propionate, 8 parts of diepoxy cross-linking agents and 20 parts of NMMO solution.
The preparation method of the fabric comprises the following steps:
(1) soaking palm fibers in a 10% sodium hydroxide solution, placing the palm fibers in an ultrasonic cell crusher for ultrasonic treatment, and performing primary alkali-ultrasonic treatment at 360w for 6 hours;
(2) preparing a polylactic acid composite material:
(a) putting polylactic acid into a single-mouth bottle, fully dissolving under magnetic stirring, quickly adding phosphorus pentachloride under nitrogen atmosphere for condensation and reflux for 1h, wherein the mass ratio of the polylactic acid to the phosphorus pentachloride is 10: 1; adding sericin powder into the viscous substance after atmospheric distillation, wherein the mass ratio of polylactic acid to sericin powder is 6: 1, reacting for 6 hours in ice bath to obtain modified polylactic acid;
(b) putting graphite into a reaction container, slowly adding fuming nitric acid, then slowly adding sodium fluosilicate to react for 24 hours, wherein the volume ratio of the graphite to the nitric acid to the sodium fluosilicate is 3: 7: 10; washing with 5% hydrochloric acid for 5 times after the reaction is finished, then washing with distilled water until the solution is neutral, stripping the graphene oxide dispersion liquid for 1h by ultrasonic equipment, adding sodium hydroxide as a reducing agent and polyvinylpyrrolidone as a dispersing agent, and reacting for 12h under the water bath heating condition at 95 ℃ to obtain the graphene dispersion liquid;
(c) adjusting the pH value of the graphene dispersion liquid to 9 by using ammonia water, adding hydrazine hydrate as a reducing agent, carrying out 150w ultrasonic dispersion for 5min, then carrying out reaction for 1h at 80 ℃, carrying out centrifugation after the reaction to obtain a precipitate, washing the precipitate by using distilled water, carrying out vacuum drying on a solid substance for 48h at 40 ℃, and grinding to obtain reduced graphene oxide;
(d) mixing modified polylactic acid and reduced graphene oxide, and carrying out ultrasonic treatment for 1h in an ultrasonic cell crusher under the condition of 200w to obtain a uniformly dispersed polylactic acid composite material;
(3) carrying out heat treatment on the palm fibers subjected to the primary alkali-ultrasonic treatment, soaking the palm fibers in an absolute ethyl alcohol solution of a polylactic acid composite material after the heat treatment, fishing out and drying after 5h, and weaving into fabric;
(4) soaking the fabric in a viscose NMMO solution, wherein the mass ratio of the viscose to the NMMO solution is 1: 1, adding a diepoxy cross-linking agent, stirring and reacting fully, and fishing out and drying;
(5) dissolving polyvinyl chloride in cyclohexanone, wherein the mass ratio of the polyvinyl chloride to the cyclohexanone is 1: 3, immediately bubbling and filling nitrogen for 5min after adding butyl methacrylate, and removing supernatant liquid to obtain a self-made finishing agent;
(6) soaking the fabric in a self-made finishing agent, adding a diepoxy cross-linking agent, wherein the volume ratio of the self-made finishing agent to the diepoxy cross-linking agent is 1: 5, stirring and reacting fully, and fishing out and drying;
(7) soaking the fabric in 10% sodium hydroxide solution, performing ultrasonic treatment in an ultrasonic cell crusher, and performing secondary alkali-ultrasonic treatment at 360w for 6h to obtain the final product.
Example 2: and (3) high-grade pajama fabric II:
the high-grade pajama fabric comprises the following components in parts by weight:
the composite material comprises, by weight, 100 parts of palm fiber, 40 parts of viscose fiber, 20 parts of polylactic acid, 20 parts of sericin powder, 20 parts of graphene, 30 parts of polylactic acid composite material, 10 parts of self-made finishing agent, 10 parts of polyvinyl chloride, 10 parts of butyl methyl propionate, 16 parts of diepoxy cross-linking agent and 40 parts of NMMO solution.
The preparation method of the fabric comprises the following steps:
(1) soaking palm fibers in a 10% sodium hydroxide solution, placing the palm fibers in an ultrasonic cell crusher for ultrasonic treatment, and performing primary alkali-ultrasonic treatment at 360w for 6 hours;
(2) preparing a polylactic acid composite material:
(a) putting polylactic acid into a single-mouth bottle, fully dissolving under magnetic stirring, quickly adding phosphorus pentachloride under nitrogen atmosphere for condensation and reflux for 1h, wherein the mass ratio of the polylactic acid to the phosphorus pentachloride is 10: 1; adding sericin powder into the viscous substance after atmospheric distillation, wherein the mass ratio of polylactic acid to sericin powder is 6: 1, reacting for 8 hours in ice bath to obtain modified polylactic acid;
(b) putting graphite into a reaction container, slowly adding fuming nitric acid, then slowly adding sodium fluosilicate to react for 24 hours, wherein the volume ratio of the graphite to the nitric acid to the sodium fluosilicate is 3: 7: 10; washing with 5% hydrochloric acid for 5 times after the reaction is finished, then washing with distilled water until the solution is neutral, stripping the graphene oxide dispersion liquid for 1h by ultrasonic equipment, adding sodium hydroxide as a reducing agent and polyvinylpyrrolidone as a dispersing agent, and reacting for 12h under the water bath heating condition at 95 ℃ to obtain the graphene dispersion liquid;
(c) adjusting the pH value of the graphene dispersion liquid to 9 by using ammonia water, adding hydrazine hydrate as a reducing agent, carrying out 150w ultrasonic dispersion for 5min, then carrying out reaction for 1h at 80 ℃, carrying out centrifugation after the reaction to obtain a precipitate, washing the precipitate by using distilled water, carrying out vacuum drying on a solid substance for 48h at 40 ℃, and grinding to obtain reduced graphene oxide;
(d) mixing modified polylactic acid and reduced graphene oxide, and carrying out ultrasonic treatment for 1h in an ultrasonic cell crusher under the condition of 200w to obtain a uniformly dispersed polylactic acid composite material;
(3) carrying out heat treatment on the palm fibers subjected to the primary alkali-ultrasonic treatment, soaking the palm fibers in an absolute ethyl alcohol solution of a polylactic acid composite material after the heat treatment, fishing out and drying after 5h, and weaving into fabric;
(4) soaking the fabric in a viscose NMMO solution, wherein the mass ratio of the viscose to the NMMO solution is 1: 1, adding a diepoxy cross-linking agent, stirring and reacting fully, and fishing out and drying;
(5) dissolving polyvinyl chloride in cyclohexanone, wherein the mass ratio of the polyvinyl chloride to the cyclohexanone is 1: 3, immediately bubbling and filling nitrogen for 8min after adding butyl methacrylate, and removing supernatant to obtain a self-made finishing agent;
(6) soaking the fabric in a self-made finishing agent, adding a diepoxy cross-linking agent, wherein the volume ratio of the self-made finishing agent to the diepoxy cross-linking agent is 1: 5, stirring and reacting fully, and fishing out and drying;
(7) soaking the fabric in 10% sodium hydroxide solution, performing ultrasonic treatment in an ultrasonic cell crusher, and performing secondary alkali-ultrasonic treatment at 360w for 6h to obtain the final product.
Comparative example 1
The formulation of comparative example 1 was the same as example 1. The preparation method of the skin-care and moisture-retention fabric is different from that in the embodiment 1 only in that the step (2) is not carried out, and in the step (3), the palm fibers are soaked in the absolute ethyl alcohol solution which is sequentially added with polylactic acid, sericin powder and graphene. The rest of the preparation steps are the same as example 1.
Comparative example 2
Comparative example 2 was formulated as in example 1. The preparation method of the skin-care moisturizing fabric is different from that of example 1 only in that the step (1) is not carried out, and the step (3) is directly prepared by using palm fibers. The rest of the preparation steps are the same as example 1.
Test example 1
1. Test method
Example 1 and comparative examples 1 and 2 are comparative tests, and the fabric is cut into the same size and subjected to heat retention and far infrared performance after being washed for 10 times.
2. Test results
The warm keeping performance of the example 1 and the comparative examples 1 and 2 is compared with the far infrared performance.
TABLE 1 Warm keeping Properties and far infrared Properties
Compared with the comparative examples 1 and 2, the thermal insulation performance and the far infrared performance of the high-grade pajama fabric prepared in the embodiment 1 are obviously found to be excellent and stable in thermal insulation and far infrared performance before and after washing, and the comparative examples 1 and 2 are obviously changed in different degrees, which indicates that the high-grade pajama fabric prepared in the invention has excellent thermal insulation and health care performance.
Test example 2
1. Test method
Example 1 and comparative examples 1 and 2 are control tests, the fabric is cut to the same size, weighed respectively, placed in the same environment, weighed again after 8h and compared.
2. Test results
Comparison of weight before and after moisture absorption between example 1 and comparative examples 1 and 2
TABLE 2 weight before and after moisture absorption (g)
| Weight before moisture absorption | Weight after moisture absorption | |
| Example 1 | 4.36 | 4.81 |
| Comparative example 1 | 4.99 | 5.21 |
| Comparative example 2 | 5.02 | 5.38 |
Compared with the weight before and after moisture absorption of the fabric of the comparative examples 1 and 2, the fabric of the same size has the advantages that the fabric of the example 1 is lighter, the weight after moisture absorption is not changed greatly, and the moisture absorption capacity is stronger, while the fabric of the comparative examples 1 and 2 is heavier before moisture absorption and weaker in moisture absorption capacity, so that the high-grade pajama fabric prepared by the invention is indicated to have excellent moisture absorption and heat insulation performance.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The high-grade pajama fabric is characterized by comprising the following raw materials in parts by weight: 50-100 parts of palm fiber, 20-40 parts of viscose fiber, 10-20 parts of polylactic acid, 10-20 parts of sericin powder, 10-20 parts of graphene, 15-30 parts of polylactic acid composite material, 5-10 parts of self-made finishing agent, 5-10 parts of polyvinyl chloride, 5-10 parts of butyl methyl propionate, 8-16 parts of epoxy cross-linking agent and 20-40 parts of NMMO solution.
2. The high-grade pajamas fabric according to claim 1, which is characterized in that: the polylactic acid composite material is formed by chlorinating polylactic acid by phosphorus pentachloride, reacting with sericin to generate an amido bond, and compounding with reduced graphene oxide.
3. The high-grade pajamas fabric according to claim 1, which is characterized in that: the self-made finishing agent is modified polyvinyl chloride prepared by grafting butyl methyl propionate on polyvinyl chloride molecules.
4. The preparation method of the high-grade pajama fabric is characterized in that the process flow for preparing the skin-care moisturizing fabric is as follows: after the first alkali-ultrasonic treatment of the palm fiber, the palm fiber is subjected to heat treatment to prepare the polylactic acid composite material, the first layer of the film of the fabric is prepared, the fabric is subjected to post-treatment, and the second alkali-ultrasonic treatment is carried out.
5. The preparation method of the high-grade pajamas fabric according to claim 4, which is characterized by comprising the following specific steps of:
(1) soaking palm fibers in a 10% sodium hydroxide solution, placing the palm fibers in an ultrasonic cell crusher for ultrasonic treatment, and performing primary alkali-ultrasonic treatment at 360W for 6 hours;
(2) preparing a polylactic acid composite material;
(3) carrying out heat treatment on the palm fibers subjected to the primary alkali-ultrasonic treatment, soaking the palm fibers in an absolute ethyl alcohol solution of a polylactic acid composite material after the heat treatment, fishing out and drying after 5-7 h, and weaving into a fabric;
(4) soaking the fabric in a viscose NMMO solution, adding a diepoxy cross-linking agent, stirring to react fully, and fishing out and drying;
(5) dissolving polyvinyl chloride in cyclohexanone, adding butyl methacrylate, immediately bubbling and filling nitrogen for 5-10 min, and removing supernatant to obtain a self-made finishing agent;
(6) soaking the fabric in a self-made finishing agent, adding a diepoxy cross-linking agent, wherein the volume ratio of the self-made finishing agent to the diepoxy cross-linking agent is 1: 5, stirring and reacting fully, and fishing out and drying;
(7) soaking the fabric in 10% sodium hydroxide solution, performing ultrasonic treatment in an ultrasonic cell crusher, and performing secondary alkali-ultrasonic treatment at 360W for 6h to obtain the final product.
6. The preparation method of the high-grade pajamas fabric according to claim 5, which is characterized by comprising the following steps of: in the step (2): the preparation method of the polylactic acid composite material comprises the following steps:
(a) putting polylactic acid into a single-mouth bottle, fully dissolving the polylactic acid under magnetic stirring, quickly adding phosphorus pentachloride in a nitrogen atmosphere to perform condensation reflux for 1h, adding sericin powder into a viscous substance after atmospheric distillation, and reacting for 6-9 h in ice bath to obtain modified polylactic acid;
(b) placing graphite into a reaction container, slowly adding fuming nitric acid, then slowly adding sodium fluosilicate to react for 24 hours, washing 5 times with 5% hydrochloric acid after the reaction is finished, then washing with distilled water until the solution is neutral, stripping the graphene oxide dispersion liquid for 1 hour by ultrasonic equipment, then adding sodium hydroxide as a reducing agent and polyvinylpyrrolidone as a dispersing agent, and reacting for 12 hours under the water bath heating condition of 95 ℃ to obtain the graphene dispersion liquid;
(c) adjusting the pH value of the graphene dispersion liquid to 9 by using ammonia water, adding hydrazine hydrate as a reducing agent, carrying out 150w ultrasonic dispersion for 5min, then carrying out reaction for 1h at 80 ℃, carrying out centrifugation after the reaction to obtain a precipitate, washing the precipitate by using distilled water, carrying out vacuum drying on a solid substance for 48h at 40 ℃, and grinding to obtain reduced graphene oxide;
(d) mixing the modified polylactic acid and the reduced graphene oxide, and carrying out ultrasonic treatment for 1h in an ultrasonic cell crusher under the condition of 200w to obtain the uniformly dispersed polylactic acid composite material.
7. The method for preparing high-grade pajamas fabric according to claim 6, wherein the step (a) comprises the following steps: the mass ratio of polylactic acid to phosphorus pentachloride is 10: 1; the mass ratio of the polylactic acid to the sericin powder is 6: 1.
8. the method for preparing high-grade pajamas fabric according to claim 5, wherein in the step (b): the volume ratio of the graphite to the nitric acid to the sodium fluoride is 3: 7: 10.
9. the method for preparing high-grade pajamas fabric according to claim 5, wherein the step (4) comprises the following steps: the mass ratio of the viscose fibers to the NMMO solution is 1: 1; the mass ratio of the viscose fibers to the diepoxy cross-linking agent is 1: 5.
10. the method for preparing high-grade pajamas fabric according to claim 5, wherein the step (5) comprises the following steps: the mass ratio of the polyvinyl chloride to the cyclohexanone is 1: 3.
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| US20170107650A1 (en) * | 2015-10-20 | 2017-04-20 | Acelon Chemicals and Fiber Corporation | Method of Preparing of Natural Graphene Cellulose Blended Meltblown Nonwoven Fabric |
| CN109864374A (en) * | 2019-03-20 | 2019-06-11 | 新昌县高纤纺织有限公司 | High-grade pajama fabric and preparation method thereof |
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