CN111676696A - Radix isatidis extract modified polyester fiber and preparation method thereof - Google Patents
Radix isatidis extract modified polyester fiber and preparation method thereof Download PDFInfo
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- CN111676696A CN111676696A CN202010626815.6A CN202010626815A CN111676696A CN 111676696 A CN111676696 A CN 111676696A CN 202010626815 A CN202010626815 A CN 202010626815A CN 111676696 A CN111676696 A CN 111676696A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 241000334160 Isatis Species 0.000 claims abstract description 27
- 239000002086 nanomaterial Substances 0.000 claims abstract description 24
- 244000236658 Paeonia lactiflora Species 0.000 claims abstract description 4
- 235000008598 Paeonia lactiflora Nutrition 0.000 claims abstract description 4
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 48
- 239000002131 composite material Substances 0.000 claims description 24
- 239000003607 modifier Substances 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 18
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 17
- 239000000126 substance Substances 0.000 claims description 17
- VYQNWZOUAUKGHI-UHFFFAOYSA-N monobenzone Chemical compound C1=CC(O)=CC=C1OCC1=CC=CC=C1 VYQNWZOUAUKGHI-UHFFFAOYSA-N 0.000 claims description 16
- XFZRQAZGUOTJCS-UHFFFAOYSA-N phosphoric acid;1,3,5-triazine-2,4,6-triamine Chemical compound OP(O)(O)=O.NC1=NC(N)=NC(N)=N1 XFZRQAZGUOTJCS-UHFFFAOYSA-N 0.000 claims description 16
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 16
- 229940045920 sodium pyrrolidone carboxylate Drugs 0.000 claims description 16
- HYRLWUFWDYFEES-UHFFFAOYSA-M sodium;2-oxopyrrolidine-1-carboxylate Chemical compound [Na+].[O-]C(=O)N1CCCC1=O HYRLWUFWDYFEES-UHFFFAOYSA-M 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 15
- 239000002114 nanocomposite Substances 0.000 claims description 15
- 239000004970 Chain extender Substances 0.000 claims description 14
- 150000001335 aliphatic alkanes Chemical group 0.000 claims description 14
- RDHPKYGYEGBMSE-UHFFFAOYSA-N bromoethane Chemical compound CCBr RDHPKYGYEGBMSE-UHFFFAOYSA-N 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
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- 238000012986 modification Methods 0.000 claims description 10
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- 238000009987 spinning Methods 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 6
- 239000004480 active ingredient Substances 0.000 claims description 5
- 229910052681 coesite Inorganic materials 0.000 claims description 5
- 229910052906 cristobalite Inorganic materials 0.000 claims description 5
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052682 stishovite Inorganic materials 0.000 claims description 5
- 229910052905 tridymite Inorganic materials 0.000 claims description 5
- 229910021536 Zeolite Inorganic materials 0.000 claims description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 4
- 239000010457 zeolite Substances 0.000 claims description 4
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- 125000005456 glyceride group Chemical group 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
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- 239000004964 aerogel Substances 0.000 claims description 2
- 238000002715 modification method Methods 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- 229920004934 Dacron® Polymers 0.000 claims 1
- 239000011148 porous material Substances 0.000 abstract description 8
- 230000035699 permeability Effects 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 239000000419 plant extract Substances 0.000 abstract description 5
- 239000007783 nanoporous material Substances 0.000 abstract description 4
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- 230000000052 comparative effect Effects 0.000 description 25
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- 238000002474 experimental method Methods 0.000 description 4
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- 239000011248 coating agent Substances 0.000 description 3
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- 230000008569 process Effects 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 241000193830 Bacillus <bacterium> Species 0.000 description 2
- 241000334154 Isatis tinctoria Species 0.000 description 2
- 241000607142 Salmonella Species 0.000 description 2
- 241000191967 Staphylococcus aureus Species 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
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- 241000207965 Acanthaceae Species 0.000 description 1
- 229920001817 Agar Polymers 0.000 description 1
- 240000002234 Allium sativum Species 0.000 description 1
- 241000205585 Aquilegia canadensis Species 0.000 description 1
- 244000063299 Bacillus subtilis Species 0.000 description 1
- 235000014469 Bacillus subtilis Nutrition 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
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- 241000222122 Candida albicans Species 0.000 description 1
- 241001478240 Coccus Species 0.000 description 1
- 208000004232 Enteritis Diseases 0.000 description 1
- 244000283207 Indigofera tinctoria Species 0.000 description 1
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- 241000589902 Leptospira Species 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 206010068319 Oropharyngeal pain Diseases 0.000 description 1
- 201000007100 Pharyngitis Diseases 0.000 description 1
- 241000293871 Salmonella enterica subsp. enterica serovar Typhi Species 0.000 description 1
- 241000607764 Shigella dysenteriae Species 0.000 description 1
- 241000194017 Streptococcus Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- 230000000840 anti-viral effect Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000003385 bacteriostatic effect Effects 0.000 description 1
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- 238000002485 combustion reaction Methods 0.000 description 1
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- 230000003203 everyday effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000004611 garlic Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000002949 hemolytic effect Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229940097275 indigo Drugs 0.000 description 1
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
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- 238000011056 performance test Methods 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229940007046 shigella dysenteriae Drugs 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
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- 231100000167 toxic agent Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—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 nitrogen
- D06M13/325—Amines
- D06M13/328—Amines the amino group being bound to an acyclic or cycloaliphatic carbon atom
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—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 nitrogen
- D06M13/35—Heterocyclic compounds
- D06M13/352—Heterocyclic compounds having five-membered heterocyclic rings
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—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 nitrogen
- D06M13/35—Heterocyclic compounds
- D06M13/355—Heterocyclic compounds having six-membered heterocyclic rings
- D06M13/358—Triazines
- D06M13/364—Cyanuric acid; Isocyanuric acid; Derivatives thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
-
- 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
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
-
- 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
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/35—Abrasion, pilling or fibrillation resistance
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The invention relates to radix isatidis extract modified polyester fiber and a preparation method thereof. According to the invention, the isatis root extract and the white peony root extract are modified with the porous nano material and the hydrophilic agent, and the nano porous material has a larger specific surface area, so that the plant extract is 'packaged' in a porous material pore channel, and the components of the plant extract cannot be damaged, thereby improving the performance and hydrophilicity of the polyester staple fiber; the preparation method can improve the mechanical property, air permeability, moisture absorption and melt resistance of the polyester staple fiber, and can also effectively prevent the polyester fiber from pilling.
Description
Technical Field
The invention belongs to the technical field of spinning, and particularly relates to radix isatidis extract modified polyester fiber and a preparation method thereof.
Background
The polyester staple fiber is obtained by spinning polyester (polyethylene terephthalate, PET for short, polymerized by PTA and MEG) into a tow and cutting the tow. With the continuous development of society and the continuous improvement of the living standard of people, the concept of health of people is continuously enhanced. As a class of materials which people have more contact in everyday life, textiles also receive more and more attention on their hygiene performance. The wide existence of microorganisms such as bacteria and the like makes the textile extremely easy to become a hotbed for bacterial breeding in the processes of taking, storing, transporting and the like. The polyester fiber molecules are symmetrical in structure and are arranged closely and orderly, so that the polyester fiber has good mechanical properties and chemical properties.
Radix Isatidis (common alias: indigo root, radix Isatidis) is a Chinese medicinal material produced in various places of China, and is divided into north radix Isatidis and south radix Isatidis, the north radix Isatidis is derived from root of Isatis tinctoria and radix Isatidis of Brassicaceae; radix Isatidis is rhizome and root of herba Kalimeridis of Acanthaceae; has effects of clearing away heat and toxic materials, cooling blood, relieving swelling, and relieving sore throat. The water extract has effects in inhibiting Bacillus subtilis, Staphylococcus aureus, Spanish coccus, Escherichia coli, Salmonella typhi, Bacillus paratyphi, Shigella dysenteriae, and enteritis bacillus; the acetone extract has similar effect and is effective for hemolytic streptococcus (all by agar small-hole plate method), and has similar antibacterial effect on A-type meningococcus as that of garlic and honeysuckle flower. The antibacterial and antiviral active ingredients of isatis root and dyers woad leaf are thought to be indigoside. Radix Isatidis also has effects of resisting leptospira, removing toxic substance, improving immunity, and resisting tumor.
The polyester staple fibers disclosed at present cannot meet the requirements of simultaneously having good antibacterial performance, mechanical performance, air permeability, moisture absorption performance and melt resistance, and the polyester staple fibers are easy to pill after long-time friction.
The present invention has been made in view of the above circumstances.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides radix isatidis extract modified polyester fiber and a preparation method thereof.
The first purpose of the invention is to provide radix isatidis extract modified polyester fiber, which comprises radix isatidis extract, radix paeoniae alba extract, sodium pyrrolidone carboxylate, melamine phosphate and triethylamine; preferably, the mass percent of the isatis root extract is 0.1-5%, the mass percent of the white peony root extract is 0.1-1%, the mass percent of the sodium pyrrolidone carboxylate is 0.5-0.9%, the mass percent of the melamine phosphate is 0.05-0.8%, and the mass percent of the triethylamine is 0.2-0.6%.
Further, the isatis root extract and the white paeony root extract are subjected to modification treatment, and the modification method comprises the following steps:
(1) adding the modified substance into water, stirring until the modified substance is completely dissolved, adding the porous nano material, uniformly stirring, and drying to obtain a porous nano material wrap;
(2) adding a long-chain alkane chain extender containing GMA side groups, bromoethane and PVA into the porous nano material wrap, uniformly stirring, and simultaneously heating at a low temperature to obtain a modified nano composite material; wherein the modified substances are radix Isatidis extract and radix Paeoniae alba extract, and are subjected to modification treatment;
the content of active ingredients in the isatis root extract or the white paeony root extract is more than or equal to 98 percent, the water content is less than or equal to 5 percent, and the total number of colonies is less than 99 cfu/g.
According to the invention, the plant extract and the porous nano material are subjected to modification treatment, and the plant extract is encapsulated in the pore canal of the porous material due to the large specific surface area of the nano porous material, so that the components of the plant extract cannot be damaged when modified polyester fiber is prepared later, and the antibacterial property of the modified polyester is improved; the long-chain alkane chain extender containing GMA side groups, bromoethane and PVA are added in the modification process and are uniformly mixed, and low-temperature heating is carried out simultaneously, so that the hydrophilicity of the modified nano composite material can be effectively improved, and the moisture absorption of the subsequently prepared polyester staple fibers is further improved.
Further, in the step (1), the mass ratio of the modifying substance to the water is 1: 5-10; the modified substance is added into water and stirred until the modified substance is completely dissolved, and the modified substance needs to be heated to 60-90 ℃.
Further, in the step (1), the porous nano material is montmorillonite, zeolite powder, aerogel or porous nano TiO2Microsphere, porous nano SiO2One or more of microspheres; the mass ratio of the modified substance to the porous nano material is 1: 5-10; the drying temperature is 50-70 ℃, and the drying time is 30-60 min.
Further, in the step (2), the mass ratio of the total mass of the long-chain alkane chain extender containing the GMA side group, the bromoethane and the PVA to the porous nanomaterial wrap is 1: and (5-7), wherein the mass ratio of the long-chain alkane chain extender containing the GMA side group to the bromoethane to the PVA is (2-4): 1-3): 1.
Further, in the step (2), the low-temperature heating temperature is 50-60 ℃, and the low-temperature heating time is 30-60 min; the stirring speed is 30-60r/min, and the stirring time is 30-120 min.
The second object of the invention is to provide a preparation method of the radix isatidis extract modified polyester fiber, which comprises the following steps:
(S1) preparation of composite modifier: mixing the modified nano composite material, sodium pyrrolidone carboxylate, melamine phosphate and triethylamine, adding a fat-soluble solvent, and grinding to obtain a composite modifier;
(S2) preparing modified polyester fiber: and melting and mixing the PET slices in a double-screw extruder, adding the composite modifier, mixing and spinning to obtain the modified polyester fiber.
Further, in the step (S1), the fat-soluble solvent is wax, higher fatty glyceride or stearic acid.
Further, the grinding particle size in the step (S1) is 8000-10000 mesh.
Further, the mass ratio of the composite modifier to the PET chips in the step (S2) is 1-8: 100.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the isatis root extract and the porous nano material are subjected to modification treatment, and the isatis root extract and the white paeony root extract are 'packaged' in the pore canal of the porous material due to the large specific surface area of the nano porous material, so that the components of the isatis root extract and the white paeony root extract cannot be damaged when modified polyester fiber is prepared later, and the performance of the polyester staple fiber is improved; the long-chain alkane chain extender containing GMA side groups, bromoethane and PVA are added in the modification process and are uniformly mixed, and low-temperature heating is carried out simultaneously, so that the hydrophilicity of the modified nano composite material can be effectively improved, and the moisture absorption of the subsequently prepared polyester staple fibers is further improved; the antibacterial performance of the polyester staple fibers is improved by adding the isatis root extract, the antibacterial performance of the polyester staple fibers is good for staphylococcus aureus, escherichia coli and candida albicans, and the antibacterial rate is still in a compound standard after washing for 50 times; according to the invention, the radix paeoniae alba extract and the sodium pyrrolidone carboxylate are added, so that the alkalinity can be effectively reduced, the fiber is not easy to slide out of the surface of the fabric, and even if the fiber slides out to form small balls, the strength of the polyester fiber is properly reduced due to the addition of the radix paeoniae alba extract and the sodium pyrrolidone carboxylate, the small balls can be easily removed, and the problem of pilling of the polyester fiber is further avoided; according to the invention, the melamine phosphate and the triethylamine are added, and the mutual action of the melamine phosphate and the triethylamine can effectively prevent the polyester fiber from dripping, effectively prevent flame from spreading and spreading, and further effectively improve the melt resistance of the polyester;
(2) according to the invention, the obtained modified nano composite material, the sodium pyrrolidone carboxylate, the melamine phosphate and the triethylamine are added into a fat-soluble solvent for grinding, can be uniformly dispersed, and are mixed with PET slices and spun to obtain the modified polyester fiber, so that the mechanical property, the antibacterial property, the air permeability, the hygroscopicity and the meltresistance of the polyester staple fiber can be improved, and the polyester fiber is not easy to pill.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The isatis root extracts in the following examples and comparative examples are loose powder in appearance, free of agglomeration, brown yellow in color and uniform; the content of active ingredients is more than or equal to 98 percent, the water content is less than or equal to 5 percent, the total number of colonies is less than 99cfu/g, salmonella and escherichia coli can not be detected, and the quality guarantee period is 18 months; the white peony root extract has loose appearance powder, no agglomeration, yellow-white color and uniform and consistent color; the content of active ingredients is more than or equal to 98 percent, the water content is less than or equal to 5 percent, the total number of colonies is less than 99cfu/g, salmonella and escherichia coli can not be detected, and the shelf life is 18 months.
Example 1
In the radix isatidis extract modified polyester fiber of the embodiment, the mass percent of the radix isatidis extract is 0.1%, the mass percent of the radix paeoniae alba extract is 0.1%, the mass percent of the sodium pyrrolidone carboxylate is 0.5%, the mass percent of the melamine phosphate is 0.05%, and the mass percent of the triethylamine is 0.2%;
the isatis root extract and the white paeony root extract are modified as follows:
(1) adding radix Isatidis extract or radix Paeoniae alba extract into water, stirring to dissolve completely, and heating water to 60 deg.C; the mass ratio of the isatis root extract or the white paeony root extract to water is 1:5, adding zeolite powder, the mass ratio of the isatis root extract or the white paeony root extract to the zeolite powder is 1:5, uniformly stirring, and drying at 50 ℃ for 60min to obtain a porous nano-material wrap;
(2) adding a long-chain alkane chain extender containing GMA side groups, bromoethane and PVA in a mass ratio of 2:1:1 into the porous nano material wrap, uniformly stirring, and simultaneously heating at a low temperature of 50 ℃ for 60 min; the mass ratio of the total mass of the long-chain alkane chain extender containing the GMA side group, bromoethane and PVA to the porous nano material coating is 1: 5; the stirring speed is 30r/min, and the stirring time is 120min, so as to obtain the modified nano composite material.
The preparation method of the radix isatidis extract modified polyester fiber comprises the following steps:
(S1) preparation of composite modifier: mixing the modified nano composite material, sodium pyrrolidone carboxylate, melamine phosphate and triethylamine, adding the mixture into a proper amount of wax, and grinding the mixture to obtain a composite modifier, wherein the grinding particle size is 8000 meshes;
(S2) preparing modified polyester fiber: and melting and mixing the PET slices in a double-screw extruder, injecting the composite modifier into the double-screw extruder, mixing the PET slices with the composite modifier melt, wherein the mass ratio of the composite modifier to the PET slices is 1:100, and spinning to obtain the radix isatidis extract modified polyester fiber.
Example 2
In the radix isatidis extract modified polyester fiber of the embodiment, the mass percent of the radix isatidis extract is 2.5%, the mass percent of the radix paeoniae alba extract is 0.5%, the mass percent of the sodium pyrrolidone carboxylate is 0.7%, the mass percent of the melamine phosphate is 0.4%, and the mass percent of the triethylamine is 0.4%;
the isatis root extract and the white paeony root extract are modified as follows:
(1) adding radix Isatidis extract or radix Paeoniae alba extract into water, stirring to dissolve completely, and heating water to 75 deg.C; the mass ratio of the isatis root extract or the white paeony root extract to the water is 1:7.5, and porous nano SiO is added2Microspheres, radix Isatidis extract or radix Paeoniae alba extract and porous nanometer SiO2The mass ratio of the microspheres is 1:7.5, the microspheres are uniformly stirred and dried for 30min at 70 ℃, and a porous nano material wrapping object is obtained;
(2) adding a long-chain alkane chain extender containing GMA side groups, bromoethane and PVA in a mass ratio of 4:3:1 into the porous nano material wrap, uniformly stirring, and simultaneously heating at a low temperature of 60 ℃ for 30 min; the mass ratio of the total mass of the long-chain alkane chain extender containing the GMA side group, bromoethane and PVA to the porous nano material coating is 1: 7; and stirring at the speed of 45r/min for 75min to obtain the modified nano composite material.
The preparation method of the radix isatidis extract modified polyester fiber comprises the following steps:
(S1) preparation of composite modifier: mixing the modified nano composite material, sodium pyrrolidone carboxylate, melamine phosphate and triethylamine, adding into a proper amount of higher fatty glyceride, and grinding to obtain a composite modifier with the particle size of 9000 meshes;
(S2) preparing modified polyester fiber: and melting and mixing the PET slices in a double-screw extruder, injecting the composite modifier into the double-screw extruder, mixing the PET slices with the composite modifier melt, wherein the mass ratio of the composite modifier to the PET slices is 4.5:100, and spinning to obtain the isatis root extract modified polyester fiber.
Example 3
In the radix isatidis extract modified polyester fiber of the embodiment, the radix isatidis extract is 5% by mass, the radix paeoniae alba extract is 1% by mass, the sodium pyrrolidone carboxylate is 0.9% by mass, the melamine phosphate is 0.8% by mass, and the triethylamine is 0.6% by mass;
the isatis root extract and the white paeony root extract are modified as follows:
(1) adding radix Isatidis extract or radix Paeoniae alba extract into water, stirring to dissolve completely, heating water to 90 deg.C, adding montmorillonite and porous nanometer SiO2Microspheres, radix isatidis extract or radix paeoniae alba extract, montmorillonite and porous nano SiO2The total mass ratio of the microspheres is 1:10, and the montmorillonite and the porous nano SiO are2The mass ratio of the microspheres is 1:1, the microspheres are uniformly stirred and dried for 45min at the temperature of 60 ℃ to obtain a porous nano material wrap;
(2) adding a long-chain alkane chain extender containing GMA side groups, bromoethane and PVA in a mass ratio of 3:2:1 into the porous nano material wrap, uniformly stirring, and simultaneously heating at a low temperature of 55 ℃ for 45 min; the mass ratio of the total mass of the long-chain alkane chain extender containing the GMA side group, bromoethane and PVA to the porous nano material coating is 1: 6; the stirring speed is 60r/min, and the stirring time is 30min, so as to obtain the modified nano composite material.
The preparation method of the radix isatidis extract modified polyester fiber comprises the following steps:
(S1) preparation of composite modifier: mixing the modified nano composite material, sodium pyrrolidone carboxylate, melamine phosphate and triethylamine, adding a proper amount of stearic acid, and grinding to obtain a composite modifier, wherein the grinding particle size is 10000 meshes;
(S2) preparing modified polyester fiber: and melting and mixing the PET slices in a double-screw extruder, injecting the composite modifier into the double-screw extruder, mixing the PET slices with the composite modifier melt, wherein the mass ratio of the composite modifier to the PET slices is 8:100, and spinning to obtain the radix isatidis extract modified polyester fiber.
Comparative example 1
The preparation method of the modified radix isatidis fiber prepared by the comparative example is the same as that of example 1, except that the radix isatidis extract is not subjected to modification treatment.
Comparative example 2
The preparation method of the radix isatidis extract modified polyester fiber prepared in the comparative example is the same as that of example 1, except that the modified nano composite material is directly ground without adding a fat-soluble solvent.
Comparative example 3
The preparation method of the isatis root extract modified polyester fiber prepared in the comparative example is the same as that of the example 1, except that the PET chips and the modified nano composite material are directly melted and mixed without preparing a composite modifier.
Comparative example 4
The preparation method of the radix isatidis extract modified polyester fiber prepared in the comparative example is the same as that of example 1, except that the modified polyester fiber does not contain the radix paeoniae alba extract.
Comparative example 5
The preparation method of the isatis root extract modified polyester fiber prepared by the comparative example is the same as that of the example 1, except that the modified polyester fiber does not contain sodium pyrrolidone carboxylate.
Comparative example 6
The preparation method of the isatis root extract modified polyester fiber prepared in the comparative example is the same as that of example 1, except that the modified polyester fiber does not contain melamine phosphate.
Comparative example 7
The preparation method of the isatis root extract modified polyester fiber prepared in the comparative example is the same as that of the example 1, except that the modified polyester fiber does not contain triethylamine.
Test example 1
The bacteriostatic ratios of the polyester staple fibers prepared in examples 1 to 3 and comparative examples 1 to 3 were measured, respectively, and the results are shown in table 1.
TABLE 1
As can be seen from Table 1, the antibacterial activity of the polyester staple fibers prepared by the method is better than that of comparative examples 1-3, because the nano-porous material has a larger specific surface area during modification treatment, and the isatis root extract is encapsulated in the pore channels of the porous material, so that the components of the isatis root extract cannot be damaged during later preparation of the polyester staple fibers, and the antibacterial performance of the polyester staple fibers is improved. The antibacterial performance of the polyester staple fibers prepared without the treatment of a fat-soluble solvent and the preparation of a composite modifier is obviously reduced, so that the performance of the polyester staple fibers prepared by the method is uniform as a result of uneven dispersion of the isatis root extract in the polyester staple fibers, and the antibacterial rate meets the standard requirement after washing for 50 times.
The applicant has also carried out the above experiments on other examples, with substantially identical results, which are not listed any more due to the limited space.
Test example 2
The mechanical properties, moisture absorption properties and air permeability of the modified polyester fibers prepared in examples 1 to 3 and comparative examples 1 to 3 were measured, respectively, and the results are shown in table 2.
TABLE 2
| Group of | Air permeability (m)2·s) | Elongation (%) | Moisture regain (%) |
| Example 1 | 422 | 5.1 | 0.91 |
| Example 2 | 419 | 5.0 | 0.89 |
| Example 3 | 424 | 5.3 | 0.92 |
| Comparative example 1 | 301 | 3.3 | 0.45 |
| Comparative example 2 | 310 | 3.4 | 0.43 |
| Comparative example 3 | 305 | 3.1 | 0.41 |
As can be seen from Table 2, the modified polyester fiber prepared by the method of the present invention has good mechanical properties, air permeability and moisture regain.
The applicant has also carried out the above experiments on other examples, with substantially identical results, which are not listed any more due to the limited space.
Test example 3
The modified polyester fibers prepared in examples 1 to 3 and comparative examples 4 to 5 were measured for unit area (1 m)2) The average number of pilling of (a) is shown in Table 3.
TABLE 3
| Example 1 | Example 2 | Example 3 | Comparative example 4 | Comparative example 5 | |
| Number of plays | 106 | 98 | 93 | 324 | 417 |
As can be seen from Table 3, the modified polyester fiber prepared by the method of the present invention is not easy to pilling.
The applicant has also carried out the above experiments on other examples, with substantially identical results, which are not listed any more due to the limited space.
Test example 4
The melt resistance of the modified polyester fibers prepared in examples 1-3 and comparative examples 6-7 was determined, the melt dripping effect test was performed by GB/T5455-1997 textile Combustion Performance test vertical method, and the melt dripping resistance was evaluated by recording the number of dripping within 1min, the results are shown in Table 4.
TABLE 4
As can be seen from Table 4, the modified polyester fiber prepared by the method of the present invention has good melt resistance.
The applicant has also carried out the above experiments on other examples, with substantially identical results, which are not listed any more due to the limited space.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The radix isatidis extract modified polyester fiber is characterized by comprising an radix isatidis extract, a radix paeoniae alba extract, sodium pyrrolidone carboxylate, melamine phosphate and triethylamine; preferably, the mass percent of the isatis root extract is 0.1-5%, the mass percent of the white peony root extract is 0.1-1%, the mass percent of the sodium pyrrolidone carboxylate is 0.5-0.9%, the mass percent of the melamine phosphate is 0.05-0.8%, and the mass percent of the triethylamine is 0.2-0.6%.
2. The radix isatidis extract modified polyester fiber as claimed in claim 1, wherein the radix isatidis extract and the radix paeoniae alba extract are subjected to modification treatment, and the modification method comprises the following steps:
(1) adding the modified substance into water, stirring until the modified substance is completely dissolved, adding the porous nano material, uniformly stirring, and drying to obtain a porous nano material wrap;
(2) adding a long-chain alkane chain extender containing GMA side groups, bromoethane and PVA into the porous nano material wrap, uniformly stirring, and simultaneously heating at a low temperature to obtain a modified nano composite material; wherein the modified substances are radix Isatidis extract and radix Paeoniae alba extract, and are subjected to modification treatment;
the content of active ingredients in the isatis root extract or the white paeony root extract is more than or equal to 98 percent, the water content is less than or equal to 5 percent, and the total number of colonies is less than 99 cfu/g.
3. The radix isatidis extract modified polyester fiber as claimed in claim 2, wherein in the step (1), the mass ratio of the modified substance to water is 1: 5-10; the modified substance is added into water and stirred until the modified substance is completely dissolved, and the modified substance needs to be heated to 60-90 ℃.
4. The radix isatidis extract modified polyester fiber as claimed in claim 2, wherein in the step (1), the porous nano material is montmorillonite, zeolite powder, aerogel or porous nano TiO2Microsphere, porous nano SiO2One or more of microspheres; the mass ratio of the modified substance to the porous nano material is 1: 5-10; the drying temperature is 50-70 ℃, and the drying time is 30-60 min.
5. The radix isatidis extract modified polyester fiber according to claim 2, wherein in the step (2), the mass ratio of the total mass of the long-chain alkane chain extender containing GMA side groups, bromoethane and PVA to the porous nanomaterial aggregate is 1: and (5-7), wherein the mass ratio of the long-chain alkane chain extender containing the GMA side group to the bromoethane to the PVA is (2-4): 1-3): 1.
6. The radix isatidis extract modified polyester fiber as claimed in claim 2, wherein in the step (2), the low-temperature heating temperature is 50-60 ℃, and the low-temperature heating time is 30-60 min.
7. The radix isatidis extract modified polyester fiber as claimed in claim 2, wherein in the step (2), the stirring speed is 30-60r/min, and the stirring time is 30-120 min.
8. A preparation method of the radix isatidis extract modified polyester fiber as claimed in any one of claims 1 to 7, wherein the method comprises the following steps:
(S1) preparation of composite modifier: mixing the modified nano composite material, sodium pyrrolidone carboxylate, melamine phosphate and triethylamine, and then adding a fat-soluble solvent for grinding to obtain a composite modifier;
(S2) preparing modified polyester fiber: and melting and mixing the PET slices in a double-screw extruder, adding the composite modifier, mixing and spinning to obtain the modified polyester fiber.
9. The method for preparing isatis root extract modified polyester fiber as claimed in claim 8, wherein the fat-soluble solvent in step (S1) is wax, higher fatty glyceride or stearic acid.
10. The method for preparing radix Isatidis extract modified Dacron fiber according to claim 8, wherein the grinding particle size in step (S1) is 8000-10000 mesh.
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| CN112522960A (en) * | 2020-11-18 | 2021-03-19 | 绍兴百荟纺织有限公司 | Compound fabric of radix isatidis |
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Application publication date: 20200918 |