CN113186617A - Anion antibacterial ES composite fiber and preparation method thereof - Google Patents
Anion antibacterial ES composite fiber and preparation method thereof Download PDFInfo
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- CN113186617A CN113186617A CN202110516985.3A CN202110516985A CN113186617A CN 113186617 A CN113186617 A CN 113186617A CN 202110516985 A CN202110516985 A CN 202110516985A CN 113186617 A CN113186617 A CN 113186617A
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- 239000000835 fiber Substances 0.000 title claims abstract description 81
- 239000002131 composite material Substances 0.000 title claims abstract description 71
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 61
- 150000001450 anions Chemical class 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title abstract description 11
- -1 polypropylene Polymers 0.000 claims abstract description 116
- 239000000843 powder Substances 0.000 claims abstract description 78
- 239000004743 Polypropylene Substances 0.000 claims abstract description 49
- 229920001155 polypropylene Polymers 0.000 claims abstract description 49
- 239000004698 Polyethylene Substances 0.000 claims abstract description 48
- 229920000573 polyethylene Polymers 0.000 claims abstract description 48
- 239000010410 layer Substances 0.000 claims abstract description 42
- JBSLOWBPDRZSMB-FPLPWBNLSA-N dibutyl (z)-but-2-enedioate Chemical compound CCCCOC(=O)\C=C/C(=O)OCCCC JBSLOWBPDRZSMB-FPLPWBNLSA-N 0.000 claims abstract description 33
- 239000012792 core layer Substances 0.000 claims abstract description 32
- 239000002994 raw material Substances 0.000 claims abstract description 29
- 239000011032 tourmaline Substances 0.000 claims abstract description 29
- 229940070527 tourmaline Drugs 0.000 claims abstract description 29
- 229910052613 tourmaline Inorganic materials 0.000 claims abstract description 29
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 26
- 229920001911 maleic anhydride grafted polypropylene Polymers 0.000 claims abstract description 25
- 150000002500 ions Chemical class 0.000 claims abstract description 20
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 19
- 229920001577 copolymer Polymers 0.000 claims abstract description 17
- 239000013078 crystal Substances 0.000 claims abstract description 17
- 102000004169 proteins and genes Human genes 0.000 claims abstract description 13
- 108090000623 proteins and genes Proteins 0.000 claims abstract description 13
- 239000000178 monomer Substances 0.000 claims description 13
- 238000002844 melting Methods 0.000 claims description 12
- 230000008018 melting Effects 0.000 claims description 12
- 238000005303 weighing Methods 0.000 claims description 12
- 229920001526 metallocene linear low density polyethylene Polymers 0.000 claims description 8
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 7
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 238000009987 spinning Methods 0.000 claims description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 6
- 239000005977 Ethylene Substances 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000009998 heat setting Methods 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 6
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 230000002421 anti-septic effect Effects 0.000 claims 1
- 239000003242 anti bacterial agent Substances 0.000 abstract description 8
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 8
- 230000003385 bacteriostatic effect Effects 0.000 abstract description 6
- 241000222122 Candida albicans Species 0.000 abstract description 4
- 241000588724 Escherichia coli Species 0.000 abstract description 4
- 241000191967 Staphylococcus aureus Species 0.000 abstract description 4
- 229940095731 candida albicans Drugs 0.000 abstract description 4
- 229910052709 silver Inorganic materials 0.000 abstract description 4
- 239000004332 silver Substances 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 6
- 239000004745 nonwoven fabric Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000003115 biocidal effect Effects 0.000 description 4
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 150000003384 small molecules Chemical class 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011022 opal Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920001410 Microfiber Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000001054 cortical effect Effects 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/34—Core-skin structure; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/10—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained by reactions only involving carbon-to-carbon unsaturated bonds as constituent
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Multicomponent Fibers (AREA)
- Artificial Filaments (AREA)
Abstract
The invention discloses an anion antibacterial ES composite fiber and a preparation method thereof, wherein the anion antibacterial ES composite fiber has a skin-core structure, namely, the anion antibacterial ES composite fiber consists of a core layer and a skin layer; wherein the core layer comprises the following raw materials in parts by weight: 80-90 parts of polypropylene, 8-11 parts of polyethylene and 12-16 parts of maleic anhydride grafted polypropylene; the skin layer comprises the following raw materials in parts by weight: 70-80 parts of polyethylene, 7-10 parts of ethylene-propylene copolymer, 6-8 parts of dibutyl maleate grafted polypropylene, 15-20 parts of ethylene-vinyl acetate copolymer, 5-6.5 parts of crystal tourmaline powder, 2-2.6 parts of protein powder and 1.5-2.0 parts of ivy powder. The anion antibacterial ES composite fiber has good antibacterial and bacteriostatic effects on escherichia coli, candida albicans, staphylococcus aureus and the like, has a broad-spectrum antibacterial and bacteriostatic effect, and does not contain micromolecular antibacterial agents or heavy metal ions such as silver ions; high breaking strength, excellent mechanical property, good durability and good flexibility.
Description
Technical Field
The invention relates to the field of composite fibers, in particular to an anion antibacterial ES composite fiber and a preparation method thereof.
Background
The cross section of the same fiber is simultaneously provided with two or more than two immiscible polymers, namely the composite fiber, and the composite fiber belongs to a physical modified fiber. Nowadays, composite technology and composite fiber are more and more, and modified fiber containing two polymer properties, such as bicomponent fiber and ultrafine fiber, can be obtained by composite fiber manufacturing technology. The ES composite fiber is one of the composite fibers.
ES, an ES fiber, is an abbreviation for "Ethylene-Propylene Side By Side", and is an attractive polyolefin fiber. ES fibers have been highly evaluated worldwide as a novel thermal bondable conjugate fiber. ES fiber belongs to the key development variety of the textile industry in China, the outstanding advantages and quality of ES fiber are gradually known by people, and the application field and market development prospect are immeasurable. After the ES fibers are heat treated, the fibers are bonded to one another to form a non-woven fabric without an adhesive. Different heat treatment modes are selected, and the non-woven fabrics with different effects can be obtained. For example, through-air bonding, bulky nonwovens can be produced, and through-air bonding, high-strength nonwovens can be produced.
However, the ES fibers currently used have the following problems:
1. or has no antibacterial effect; or the antibacterial property is obtained by adding the micromolecular antibacterial agent or not containing the silver ion and other heavy metal ions, and the micromolecular antibacterial agent, the silver ion and other heavy metal ions in the later use process migrate to the surface of the fiber to be harmful to health, and the antibacterial effect is not lasting;
2. the antibacterial property obtained by adding a small-molecule antibacterial agent or not containing heavy metal ions such as silver ions and the like causes the mechanical strength of the fiber to be greatly reduced, and the fiber is not durable, has hard texture and is uncomfortable to wear.
Disclosure of Invention
Based on the above situation, the present invention aims to provide an anion antibacterial ES composite fiber and a preparation method thereof, which can effectively solve the above problems.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
an anion antibacterial ES composite fiber has a skin-core structure, namely, the anion antibacterial ES composite fiber consists of a core layer and a skin layer;
the core layer comprises the following raw materials in parts by weight: 80-90 parts of polypropylene, 8-11 parts of polyethylene and 12-16 parts of maleic anhydride grafted polypropylene;
the skin layer comprises the following raw materials in parts by weight: 70-80 parts of polyethylene, 7-10 parts of ethylene-propylene copolymer, 6-8 parts of dibutyl maleate grafted polypropylene, 15-20 parts of ethylene-vinyl acetate copolymer, 5-6.5 parts of crystal tourmaline powder, 2-2.6 parts of protein powder and 1.5-2.0 parts of ivy powder.
Preferably, the core layer comprises the following raw materials in parts by weight: 85 parts of polypropylene, 9.5 parts of polyethylene and 14 parts of maleic anhydride grafted polypropylene;
the skin layer comprises the following raw materials in parts by weight: 75 parts of polyethylene, 8.5 parts of ethylene-propylene copolymer, 7 parts of dibutyl maleate grafted polypropylene, 17.5 parts of ethylene-vinyl acetate copolymer, 5.7 parts of crystal tourmaline powder, 2.3 parts of protein powder and 1.75 parts of ivy powder.
Preferably, the polyethylene is a metallocene linear low density polyethylene.
Preferably, the maleic anhydride grafting rate of the maleic anhydride grafted polypropylene is 3.8-4.5%.
Preferably, the dibutyl maleate grafting rate of the dibutyl maleate grafted polypropylene is 2.8-3.6%.
Preferably, the molar ratio of monomer units in the ethylene-vinyl acetate copolymer to vinyl acetate is 1: 0.38 to 0.44.
Preferably, the molar ratio of the monomer units ethylene and propylene in the ethylene propylene copolymer is 1: 0.64 to 0.74.
Preferably, the fineness of the crystal tourmaline powder and the fineness of the protein powder are both 0.6-0.8 ten thousand meshes.
Preferably, the volume ratio of the core layer to the skin layer is 1: 0.32 to 0.42.
The invention also provides a preparation method of the anion antibacterial ES composite fiber, which comprises the following steps:
A. respectively weighing polypropylene, polyethylene and maleic anhydride grafted polypropylene according to parts by weight, uniformly mixing, feeding into a single-screw extruder, and melting into a polypropylene mixed melt;
B. respectively weighing polyethylene, ethylene propylene copolymer, dibutyl maleate grafted polypropylene, ethylene-vinyl acetate copolymer, crystalline tourmaline powder, albumen powder and ivy powder in parts by weight, feeding into a double-screw extruder, and melting into polyethylene mixed melt;
C. and (3) feeding the polypropylene mixed melt and the polyethylene mixed melt into a composite spinning machine, distributing the melts, spraying out from a composite spinneret plate to form a strand silk with a skin-core structure, and then performing air blowing cooling, oiling, winding, bundling, stretching, heat setting, curling and cutting to obtain the negative ion antibacterial ES composite fiber.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the anion antibacterial ES composite fiber has a skin-core structure, namely, the anion antibacterial ES composite fiber consists of a core layer and a skin layer, the anion antibacterial ES composite fiber consists of selected raw materials of the core layer and the skin layer, the content of each raw material is optimized, the core layer is made of polypropylene, polyethylene and maleic anhydride grafted polypropylene, the skin layer is made of polyethylene, ethylene propylene copolymer, dibutyl maleate grafted polypropylene, ethylene-vinyl acetate copolymer, crystal tourmaline powder, albumen stone powder and ivy powder, the advantages of the anion antibacterial ES composite fiber and the skin layer are fully exerted, the anion antibacterial ES composite fiber and the skin layer are mutually supplemented and promoted, the prepared anion antibacterial ES composite fiber has good antibacterial and bacteriostatic effects on escherichia coli, candida albicans, staphylococcus aureus and the like, has broad-spectrum antibacterial and bacteriostatic effects, does not contain small-molecule antibacterial agents, effectively avoids the migration of the small-molecule antibacterial agents to the surfaces of the fibers in the later use process to harm health, does not contain heavy metal ions such as silver ions and the like, heavy metal ions such as silver ions and the like in the later use process are effectively prevented from migrating to the surface of the fiber to harm health, so that the antibacterial effect is more durable; high breaking strength, excellent mechanical property, good durability and good flexibility.
According to the anion antibacterial ES composite fiber, polypropylene is selected as a main raw material of a core layer, a proper amount of polyethylene is added, and the polyethylene is metallocene linear low-density polyethylene; the skin layer is made of polyethylene as main material, metallocene linear low density polyethylene and proper amount of ethylene-propylene copolymer. The sandwich layer texture is harder like this, provides good mechanical strength, and the cortex texture is softer, provides good hot rolling bonding strength, and has still guaranteed the bonding strength between sandwich layer and the cortex, has further guaranteed that the good mechanical strength and the pliability of product are good.
Appropriate amount of maleic anhydride grafted polypropylene is added into the core layer and the skin layer, the maleic anhydride grafting rate of the maleic anhydride grafted polypropylene is 3.8-4.5%, the compatibility of raw materials between the core layer and the skin layer is improved, the bonding strength between the core layer and the skin layer is further improved, and the good mechanical strength of the product is further ensured.
And a proper amount of dibutyl maleate grafted polypropylene is added into the skin layer, and the dibutyl maleate grafting rate of the dibutyl maleate grafted polypropylene is 2.8-3.6%. The core-shell type tourmaline powder has good compatibility with other raw materials, is matched with other components, improves the dispersibility of crystal tourmaline powder, opal powder, ivy powder and the like in the raw materials of the skin layer, and further improves the bonding strength between the core layer and the skin layer.
Proper amount of ethylene-vinyl acetate copolymer is added into the cortex, and the molar ratio of monomer units in the ethylene-vinyl acetate copolymer to vinyl acetate is 1: 0.38-0.44, has good compatibility with other raw materials, is matched with other components, greatly improves the dispersibility of the crystal tourmaline powder, the opal powder, the ivy powder and the like in the cortical raw materials, has good toughening effect, greatly improves the breaking strength of the product, and ensures that the product has good mechanical property, good durability and good flexibility.
Proper amounts of crystal tourmaline powder, protein powder and ivy powder are added into the cortex, and the fineness of the crystal tourmaline powder and the fineness of the protein powder are both 0.6-0.8 ten thousand meshes. The dispersibility in the cortex raw materials is good, and the three mutually supports, play good synergistic effect, the antibiotic ES composite fiber of anion has been promoted to the escherichia coli by a wide margin, candida albicans, staphylococcus aureus etc. all have good antibiotic antibacterial effect, broad-spectrum antibiotic antibacterial effect has, and do not contain the micromolecule antibacterial agent, the micromolecule antibacterial agent that has effectively avoided in the later stage use migrates to the fibre surface harm healthy, also do not contain heavy metal ions such as silver ion, heavy metal ions such as effectively avoided in the later stage use migrate to the fibre surface harm healthy, antibiotic effect is more lasting like this.
The preparation method of the anion antibacterial ES composite fiber has simple process and simple and convenient operation, and can adopt a skin-core structure fiber spinning method commonly used in the field, thereby saving manpower and equipment cost.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in connection with specific examples, which should not be construed as limiting the present patent.
The test methods or test methods in the following examples are all conventional methods unless otherwise specified; reagents and materials, unless otherwise specified, are conventionally obtained commercially or prepared by conventional methods.
Example 1:
an anion antibacterial ES composite fiber has a skin-core structure, namely, the anion antibacterial ES composite fiber consists of a core layer and a skin layer;
the core layer comprises the following raw materials in parts by weight: 80-90 parts of polypropylene, 8-11 parts of polyethylene and 12-16 parts of maleic anhydride grafted polypropylene;
the skin layer comprises the following raw materials in parts by weight: 70-80 parts of polyethylene, 7-10 parts of ethylene-propylene copolymer, 6-8 parts of dibutyl maleate grafted polypropylene, 15-20 parts of ethylene-vinyl acetate copolymer, 5-6.5 parts of crystal tourmaline powder, 2-2.6 parts of protein powder and 1.5-2.0 parts of ivy powder.
In this embodiment, the core layer preferably includes the following raw materials in parts by weight: 85 parts of polypropylene, 9.5 parts of polyethylene and 14 parts of maleic anhydride grafted polypropylene;
the skin layer preferably comprises the following raw materials in parts by weight: 75 parts of polyethylene, 8.5 parts of ethylene-propylene copolymer, 7 parts of dibutyl maleate grafted polypropylene, 17.5 parts of ethylene-vinyl acetate copolymer, 5.7 parts of crystal tourmaline powder, 2.3 parts of protein powder and 1.75 parts of ivy powder.
In this embodiment, the polyethylene is preferably a metallocene linear low density polyethylene.
In this embodiment, the maleic anhydride grafting ratio of the maleic anhydride grafted polypropylene is preferably 3.8 to 4.5%.
In this embodiment, the dibutyl maleate grafting ratio of the dibutyl maleate grafted polypropylene is preferably 2.8 to 3.6%.
In this embodiment, the molar ratio of the monomer units of the ethylene-vinyl acetate copolymer to the vinyl acetate is preferably 1: 0.38 to 0.44.
In this embodiment, the molar ratio of the monomer units ethylene and propylene in the ethylene propylene copolymer is preferably 1: 0.64 to 0.74.
In this embodiment, the fineness of the crystal tourmaline powder and the fineness of the albumen powder are both preferably 0.6-0.8 ten thousand meshes.
In this embodiment, the volume ratio of the core layer to the skin layer is preferably 1: 0.32 to 0.42.
The embodiment also provides a preparation method of the negative ion antibacterial ES composite fiber, which comprises the following steps:
A. respectively weighing polypropylene, polyethylene and maleic anhydride grafted polypropylene according to parts by weight, uniformly mixing, feeding into a single-screw extruder, and melting into a polypropylene mixed melt;
B. respectively weighing polyethylene, ethylene propylene copolymer, dibutyl maleate grafted polypropylene, ethylene-vinyl acetate copolymer, crystalline tourmaline powder, albumen powder and ivy powder in parts by weight, feeding into a double-screw extruder, and melting into polyethylene mixed melt;
C. and (3) feeding the polypropylene mixed melt and the polyethylene mixed melt into a composite spinning machine, distributing the melts, spraying out from a composite spinneret plate to form a strand silk with a skin-core structure, and then performing air blowing cooling, oiling, winding, bundling, stretching, heat setting, curling and cutting to obtain the negative ion antibacterial ES composite fiber.
Example 2:
an anion antibacterial ES composite fiber has a skin-core structure, namely, the anion antibacterial ES composite fiber consists of a core layer and a skin layer;
the core layer comprises the following raw materials in parts by weight: 80 parts of polypropylene, 8 parts of polyethylene and 12 parts of maleic anhydride grafted polypropylene;
the skin layer comprises the following raw materials in parts by weight: 70 parts of polyethylene, 7 parts of ethylene-propylene copolymer, 6 parts of dibutyl maleate grafted polypropylene, 15 parts of ethylene-vinyl acetate copolymer, 5 parts of crystal tourmaline powder, 2 parts of protein powder and 1.5 parts of ivy powder.
In this example, the polyethylene is a metallocene linear low density polyethylene.
In this example, the maleic anhydride-grafted polypropylene had a maleic anhydride grafting ratio of 3.8%.
In this example, the dibutyl maleate graft ratio of the dibutyl maleate grafted polypropylene was 2.8%.
In this embodiment, the molar ratio of the monomer units of the ethylene-vinyl acetate copolymer to the vinyl acetate is 1: 0.38.
in this example, the molar ratio of the monomer units ethylene and propylene in the ethylene propylene copolymer was 1: 0.64.
in this embodiment, the fineness of the crystalline tourmaline powder and the fineness of the albumen powder are both 0.6 ten thousand meshes.
In this embodiment, the volume ratio of the core layer to the skin layer is 1: 0.32.
in this embodiment, the preparation method of the negative ion antibacterial ES composite fiber includes the following steps:
A. respectively weighing polypropylene, polyethylene and maleic anhydride grafted polypropylene according to parts by weight, uniformly mixing, feeding into a single-screw extruder, and melting into a polypropylene mixed melt;
B. respectively weighing polyethylene, ethylene propylene copolymer, dibutyl maleate grafted polypropylene, ethylene-vinyl acetate copolymer, crystalline tourmaline powder, albumen powder and ivy powder in parts by weight, feeding into a double-screw extruder, and melting into polyethylene mixed melt;
C. and (3) feeding the polypropylene mixed melt and the polyethylene mixed melt into a composite spinning machine, distributing the melts, spraying out from a composite spinneret plate to form a strand silk with a skin-core structure, and then performing air blowing cooling, oiling, winding, bundling, stretching, heat setting, curling and cutting to obtain the negative ion antibacterial ES composite fiber.
Example 3:
an anion antibacterial ES composite fiber has a skin-core structure, namely, the anion antibacterial ES composite fiber consists of a core layer and a skin layer;
the core layer comprises the following raw materials in parts by weight: 90 parts of polypropylene, 11 parts of polyethylene and 16 parts of maleic anhydride grafted polypropylene;
the skin layer comprises the following raw materials in parts by weight: 80 parts of polyethylene, 10 parts of ethylene-propylene copolymer, 8 parts of dibutyl maleate grafted polypropylene, 20 parts of ethylene-vinyl acetate copolymer, 6.5 parts of crystal tourmaline powder, 2.6 parts of protein powder and 2.0 parts of ivy powder.
In this example, the polyethylene is a metallocene linear low density polyethylene.
In this example, the maleic anhydride-grafted polypropylene had a maleic anhydride grafting ratio of 4.5%.
In this example, the dibutyl maleate graft ratio of the dibutyl maleate grafted polypropylene was 3.6%.
In this embodiment, the molar ratio of the monomer units of the ethylene-vinyl acetate copolymer to the vinyl acetate is 1: 0.44.
in this example, the molar ratio of the monomer units ethylene and propylene in the ethylene propylene copolymer was 1: 0.74.
in this embodiment, the fineness of the crystalline tourmaline powder and the fineness of the albumen powder are both 0.8 ten thousand meshes.
In this embodiment, the volume ratio of the core layer to the skin layer is 1: 0.42.
in this embodiment, the preparation method of the negative ion antibacterial ES composite fiber includes the following steps:
A. respectively weighing polypropylene, polyethylene and maleic anhydride grafted polypropylene according to parts by weight, uniformly mixing, feeding into a single-screw extruder, and melting into a polypropylene mixed melt;
B. respectively weighing polyethylene, ethylene propylene copolymer, dibutyl maleate grafted polypropylene, ethylene-vinyl acetate copolymer, crystalline tourmaline powder, albumen powder and ivy powder in parts by weight, feeding into a double-screw extruder, and melting into polyethylene mixed melt;
C. and (3) feeding the polypropylene mixed melt and the polyethylene mixed melt into a composite spinning machine, distributing the melts, spraying out from a composite spinneret plate to form a strand silk with a skin-core structure, and then performing air blowing cooling, oiling, winding, bundling, stretching, heat setting, curling and cutting to obtain the negative ion antibacterial ES composite fiber.
Example 4:
an anion antibacterial ES composite fiber has a skin-core structure, namely, the anion antibacterial ES composite fiber consists of a core layer and a skin layer;
the core layer comprises the following raw materials in parts by weight: 85 parts of polypropylene, 9.5 parts of polyethylene and 14 parts of maleic anhydride grafted polypropylene;
the skin layer comprises the following raw materials in parts by weight: 75 parts of polyethylene, 8.5 parts of ethylene-propylene copolymer, 7 parts of dibutyl maleate grafted polypropylene, 17.5 parts of ethylene-vinyl acetate copolymer, 5.7 parts of crystal tourmaline powder, 2.3 parts of protein powder and 1.75 parts of ivy powder.
In this example, the polyethylene is a metallocene linear low density polyethylene.
In this example, the maleic anhydride-grafted polypropylene had a maleic anhydride grafting ratio of 4.15%.
In this example, the dibutyl maleate graft ratio of the dibutyl maleate grafted polypropylene was 3.2%.
In this embodiment, the molar ratio of the monomer units of the ethylene-vinyl acetate copolymer to the vinyl acetate is 1: 0.41.
in this example, the molar ratio of the monomer units ethylene and propylene in the ethylene propylene copolymer was 1: 0.69.
in this embodiment, the fineness of the crystalline tourmaline powder and the fineness of the albumen powder are both 0.7 ten thousand meshes.
In this embodiment, the volume ratio of the core layer to the skin layer is 1: 0.37.
in this embodiment, the preparation method of the negative ion antibacterial ES composite fiber includes the following steps:
A. respectively weighing polypropylene, polyethylene and maleic anhydride grafted polypropylene according to parts by weight, uniformly mixing, feeding into a single-screw extruder, and melting into a polypropylene mixed melt;
B. respectively weighing polyethylene, ethylene propylene copolymer, dibutyl maleate grafted polypropylene, ethylene-vinyl acetate copolymer, crystalline tourmaline powder, albumen powder and ivy powder in parts by weight, feeding into a double-screw extruder, and melting into polyethylene mixed melt;
C. and (3) feeding the polypropylene mixed melt and the polyethylene mixed melt into a composite spinning machine, distributing the melts, spraying out from a composite spinneret plate to form a strand silk with a skin-core structure, and then performing air blowing cooling, oiling, winding, bundling, stretching, heat setting, curling and cutting to obtain the negative ion antibacterial ES composite fiber.
Comparative example 1:
the difference from example 4 is that the bark layer is free of ivy powder, and the rest is the same as example 4.
Comparative example 2:
the difference from example 4 is that the skin layer is free of the albumen powder, and the other is the same as example 4.
Comparative example 3:
the difference from example 4 is that the crystalline tourmaline powder is not present in the skin layer, and the other is the same as example 4.
Comparative example 4:
the difference from example 4 is that the ethylene-vinyl acetate copolymer is not present in the skin layer, and the other is the same as example 4.
Comparative example 5:
the difference from example 4 is that there is no dibutyl maleate grafted polypropylene in both the core layer and the skin layer, otherwise the same as example 4.
And (3) performance testing: the anion antibacterial ES composite fibers (the fiber diameters are all 3D) obtained in the embodiments 2 to 4 of the invention and the ES composite fibers (the fiber diameters are all 3D) obtained in the comparative examples 1 to 5 are prepared into hot-air non-woven fabrics (the gram weight is 400 g/m) with the same specification through the same process (hot rolling process)2) And (3) carrying out performance test on the fabric, wherein the test result is shown in table 1.
TABLE 1
As can be seen from the above table, the negative ion antibacterial ES composite fiber of the present invention has the following advantages: the antibacterial and bacteriostatic effects on escherichia coli, candida albicans, staphylococcus aureus and the like are good, and the broad-spectrum antibacterial and bacteriostatic effect is achieved; high breaking strength, excellent mechanical performance and high durability.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (10)
1. The negative ion antibacterial ES composite fiber is characterized by having a skin-core structure, namely consisting of a core layer and a skin layer;
the core layer comprises the following raw materials in parts by weight: 80-90 parts of polypropylene, 8-11 parts of polyethylene and 12-16 parts of maleic anhydride grafted polypropylene;
the skin layer comprises the following raw materials in parts by weight: 70-80 parts of polyethylene, 7-10 parts of ethylene-propylene copolymer, 6-8 parts of dibutyl maleate grafted polypropylene, 15-20 parts of ethylene-vinyl acetate copolymer, 5-6.5 parts of crystal tourmaline powder, 2-2.6 parts of protein powder and 1.5-2.0 parts of ivy powder.
2. The negative-ion antibacterial ES composite fiber according to claim 1, wherein the core layer comprises the following raw materials in parts by weight: 85 parts of polypropylene, 9.5 parts of polyethylene and 14 parts of maleic anhydride grafted polypropylene;
the skin layer comprises the following raw materials in parts by weight: 75 parts of polyethylene, 8.5 parts of ethylene-propylene copolymer, 7 parts of dibutyl maleate grafted polypropylene, 17.5 parts of ethylene-vinyl acetate copolymer, 5.7 parts of crystal tourmaline powder, 2.3 parts of protein powder and 1.75 parts of ivy powder.
3. The anion antiseptic ES composite fiber according to claim 1 or 2, wherein the polyethylene is metallocene linear low density polyethylene.
4. The negative-ion antibacterial ES composite fiber according to claim 1 or 2, wherein the maleic anhydride graft ratio of the maleic anhydride-grafted polypropylene is 3.8-4.5%.
5. The negative-ion antibacterial ES composite fiber according to claim 1 or 2, wherein the dibutyl maleate grafting ratio of the dibutyl maleate grafted polypropylene is 2.8-3.6%.
6. The negative-ion antibacterial ES composite fiber according to claim 1 or 2, wherein the ethylene-vinyl acetate copolymer has a monomer unit ethylene/vinyl acetate molar ratio of 1: 0.38 to 0.44.
7. The anion antibacterial ES composite fiber according to claim 1 or 2, wherein the molar ratio of monomer units of the ethylene-propylene copolymer to propylene is 1: 0.64 to 0.74.
8. The anion antibacterial ES composite fiber according to claim 1 or 2, wherein the fineness of the tourmaline powder and the fineness of the albumen powder are both 0.6-0.8 ten thousand meshes.
9. The negative-ion antibacterial ES composite fiber according to claim 1 or 2, wherein the volume ratio of the core layer to the skin layer is 1: 0.32 to 0.42.
10. A method for preparing the anion antibacterial ES composite fiber according to claim 1 or 2, comprising the steps of:
A. respectively weighing polypropylene, polyethylene and maleic anhydride grafted polypropylene according to parts by weight, uniformly mixing, feeding into a single-screw extruder, and melting into a polypropylene mixed melt;
B. respectively weighing polyethylene, ethylene propylene copolymer, dibutyl maleate grafted polypropylene, ethylene-vinyl acetate copolymer, crystalline tourmaline powder, albumen powder and ivy powder in parts by weight, feeding into a double-screw extruder, and melting into polyethylene mixed melt;
C. and (3) feeding the polypropylene mixed melt and the polyethylene mixed melt into a composite spinning machine, distributing the melts, spraying out from a composite spinneret plate to form a strand silk with a skin-core structure, and then performing air blowing cooling, oiling, winding, bundling, stretching, heat setting, curling and cutting to obtain the negative ion antibacterial ES composite fiber.
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