CN113089130A - Preparation method of biodegradable fiber - Google Patents
Preparation method of biodegradable fiber Download PDFInfo
- Publication number
- CN113089130A CN113089130A CN202110369937.6A CN202110369937A CN113089130A CN 113089130 A CN113089130 A CN 113089130A CN 202110369937 A CN202110369937 A CN 202110369937A CN 113089130 A CN113089130 A CN 113089130A
- Authority
- CN
- China
- Prior art keywords
- fiber
- pla
- pva
- parts
- pet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester 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
- D01D5/0007—Electro-spinning
- D01D5/0015—Electro-spinning characterised by the initial state of the material
-
- 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
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
-
- 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
-
- 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
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/59—Polyamides; Polyimides
-
- 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
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/24—Polymers or copolymers of alkenylalcohols or esters thereof; Polymers or copolymers of alkenylethers, acetals or ketones
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Artificial Filaments (AREA)
Abstract
The invention relates to the technical field of biodegradable fibers, in particular to a preparation method of biodegradable fibers, which comprises the following steps of taking out raw materials, wherein the PLA: 70-80 parts of PET (polyethylene terephthalate), 10-15 parts of PA6, 5-8 parts of PVA: 3-5 parts by weight of the polyvinyl formal fiber, preliminarily preparing, dissolving PLA into molten liquid by taking dichloromethane, trichloromethane and toluene as solvents, heating and dissolving PET and PA6 into molten mass, and acetalizing the polyvinyl alcohol fiber after PVA heat treatment to obtain the polyvinyl formal fiber. The fiber prepared by taking PLA as a raw material as a main body has good degradation performance, then the PVA is mixed, the water solubility of the PVA can increase the biodegradation rate, the PET is added into the PVA and the PLA for mixing, the strength and the toughness of the whole fiber can be improved, the PA6 coating is uniformly sprayed on the surface of the fiber obtained by mixing the PVA and the PLA by a spraying machine, the water sensitivity of the fiber is further improved, and the degradation effect of the fiber is accelerated.
Description
Technical Field
The invention relates to the technical field of biodegradable fibers, in particular to a preparation method of biodegradable fibers.
Background
Biodegradable fibers are fibers spun from biodegradable polymers. Can be completely degraded after being eroded by organisms (such as bacteria, fungi, algae, etc.) in the nature, and is finally metabolized into water and carbon dioxide by enzyme. Mainly cellulose fiber, chitin fiber, polylactic acid fiber and the like, and bi-component degradable fiber consisting of two different polymers.
At present, biodegradable fibers can be degraded after being eroded by natural organisms and finally metabolized into water and carbon dioxide, but after the fibers are woven into a material, the material stability is poor and the material is easy to damage, so that the service life of the material is reduced.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a preparation method of biodegradable fiber.
The invention provides a preparation method of biodegradable fiber, which comprises the following steps:
s1, taking out raw materials, PLA: 70-80 parts of PET (polyethylene terephthalate), 10-15 parts of PA6, 5-8 parts of PVA: 3-5 parts;
s2, preliminary preparation, namely dissolving PLA into molten liquid by taking dichloromethane, trichloromethane and toluene as solvents, then heating and dissolving PET and PA6 into molten mass, and acetalizing polyvinyl alcohol fiber after PVA heat treatment to obtain polyvinyl formal fiber;
s3: the method comprises the following steps of performing primary processing, namely adding polyvinyl formal fibers into PLA molten liquid, mixing and heating to obtain a mixed spinning solution of the polyvinyl formal fibers and the PLA molten liquid, wherein the mixed spinning solution accounts for 12% -15% of the total mass of the spinning solution, introducing the spinning solution into an electrostatic spinning device, and spraying to prepare fibers with the diameter of 300-1500 nm;
s4: secondary processing, introducing the PET melt in the S2 into a melt spinning machine to obtain a fiber with the diameter of 200-1600 nm, introducing the fiber and the fiber obtained in the S3 into a fiber mixer for mixing, then taking dichloromethane, trichloromethane and toluene as solvents to obtain a mixed molten liquid, injecting the mixed molten liquid into an electrostatic spinning device, and spraying to obtain a mixed fiber with the diameter of 400-1600 nm;
and S5, carrying out three times of processing, namely uniformly spraying the PA6 molten mass obtained in the S2 on the mixed fibers through a spraying machine.
Preferably, in the S1, PLA is polylactic acid, PET is aromatic polyester, PA6 is polycaprolactam, and PVA is polyvinyl alcohol.
Preferably, the distance between the spinning nozzle and the receiving plate in the electrostatic spinning device is 18cm, and the electrostatic spinning voltage is 15-25 kV.
Preferably, the mass ratio of the dichloromethane to the trichloromethane to the toluene is 5: 3: 2.
the invention has the beneficial effects that:
1. the fiber prepared by taking PLA as a raw material as a main body has good degradation performance, and is mixed with PVA, so that the water solubility of the fiber can increase the biodegradation rate.
2. The PET is added into the PVA and the PLA for mixing, so that the strength and the toughness of the whole fiber can be improved, and the PA6 coating is uniformly sprayed on the surface of the fiber obtained by mixing the PVA and the PLA by a spraying machine, so that the water sensitivity of the fiber is further improved, and the degradation effect of the fiber is accelerated.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example 1:
a method for preparing biodegradable fiber comprises the following steps:
s1, taking out raw materials, PLA: 70 parts, 10 parts of PET, 5 parts of PA6, PVA: 3 parts, in the S1, PLA is polylactic acid, PET is aromatic polyester, PA6 is polycaprolactam, and PVA is polyvinyl alcohol;
s2, performing primary preparation, wherein dichloromethane, trichloromethane and toluene are used as solvents, and the mass ratio of the dichloromethane to the trichloromethane to the toluene is 5: 3: dissolving PLA into molten liquid, heating and dissolving PET and PA6 into molten mass, and acetalizing PVA fiber after heat treatment to obtain polyvinyl formal fiber;
s3: the preparation method comprises the following steps of (1) carrying out primary processing, namely adding polyvinyl formal fibers into PLA molten liquid, mixing and heating to obtain a spinning solution formed by mixing the polyvinyl formal fibers and the PLA molten liquid, wherein the polyvinyl formal fibers and the PLA molten liquid account for 12% of the total mass of the spinning solution, introducing the spinning solution into an electrostatic spinning device, and spraying to prepare fibers with the diameter of 300nm, wherein the distance between a spinning nozzle and a receiving plate in the electrostatic spinning device is 18cm, and the electrostatic spinning voltage is 15 kV;
s4: secondary processing, namely introducing the PET melt in the S2 into a melt spinning machine to obtain a fiber with the diameter of 200nm, introducing the fiber and the fiber obtained in the S3 into a fiber mixing machine for mixing, then taking dichloromethane, trichloromethane and toluene as solvents to obtain mixed molten liquid, injecting the mixed molten liquid into an electrostatic spinning device, and spraying to obtain a mixed fiber with the diameter of 400 nm;
s5, carrying out three times of processing, namely uniformly spraying the PA6 molten mass obtained in the step S2 on the mixed fibers through a spraying machine;
the conclusion can be that: the fiber degradation rate is 2-3 months, the fiber strength is 15g/d, and the fiber tensile strength is 200 MPa.
Example 2:
a method for preparing biodegradable fiber comprises the following steps:
s1, taking out raw materials, PLA: 75 parts, 12 parts of PET, 7 parts of PA6, PVA: 4 parts, in the S1, PLA is polylactic acid, PET is aromatic polyester, PA6 is polycaprolactam, and PVA is polyvinyl alcohol;
s2, performing primary preparation, wherein dichloromethane, trichloromethane and toluene are used as solvents, and the mass ratio of the dichloromethane to the trichloromethane to the toluene is 5: 3: 2, dissolving PLA into molten liquid, heating and dissolving PET and PA6 into molten mass, and acetalizing the PVA fiber after heat treatment to obtain polyvinyl formal fiber;
s3: the method comprises the following steps of performing primary processing, namely adding polyvinyl formal fibers into PLA molten liquid, mixing and heating to obtain a mixed spinning solution, wherein the polyvinyl formal fibers and the PLA molten liquid account for 13% of the total mass of the spinning solution, introducing the spinning solution into an electrostatic spinning device, and spraying to prepare fibers with the diameter of 900nm, wherein the distance between a spinning nozzle and a receiving plate in the electrostatic spinning device is 18cm, and the electrostatic spinning voltage is 20 kV;
s4: secondary processing, namely introducing the PET melt in the S2 into a melt spinning machine to obtain a fiber with the diameter of 700nm, introducing the fiber and the fiber obtained in the S3 into a fiber mixing machine for mixing, then taking dichloromethane, trichloromethane and toluene as solvents to obtain a mixed molten liquid, injecting the mixed molten liquid into an electrostatic spinning device, and spraying to obtain a mixed fiber with the diameter of 1000 nm;
s5, carrying out three times of processing, namely uniformly spraying the PA6 molten mass obtained in the step S2 on the mixed fibers through a spraying machine;
the conclusion can be that: the fiber degradation rate is 2 and a half months, the fiber strength is 20g/d, and the fiber tensile strength is 300 MPa.
Example 3:
a method for preparing biodegradable fiber comprises the following steps:
s1, taking out raw materials, PLA: 80 parts, 15 parts of PET, 8 parts of PA6, PVA: 5 parts, in the S1, PLA is polylactic acid, PET is aromatic polyester, PA6 is polycaprolactam, and PVA is polyvinyl alcohol;
s2, performing primary preparation, wherein dichloromethane, trichloromethane and toluene are used as solvents, and the mass ratio of the dichloromethane to the trichloromethane to the toluene is 5: 3: 2, dissolving PLA into molten liquid, heating and dissolving PET and PA6 into molten mass, and acetalizing the PVA fiber after heat treatment to obtain polyvinyl formal fiber;
s3: the preparation method comprises the following steps of (1) carrying out primary processing, adding polyvinyl formal fibers into PLA molten liquid, mixing and heating to obtain a spinning solution formed by mixing the polyvinyl formal fibers and the PLA molten liquid, wherein the polyvinyl formal fibers and the PLA molten liquid account for 15% of the total mass of the spinning solution, introducing the spinning solution into an electrostatic spinning device, and spraying to prepare fibers with the diameter of 1500nm, wherein the distance between a spinning nozzle and a receiving plate in the electrostatic spinning device is 18cm, and the electrostatic spinning voltage is 25 kV;
s4: secondary processing, namely introducing the PET melt in the S2 into a melt spinning machine to obtain fibers with the diameter of 1300nm, introducing the fibers and the fibers obtained in the S3 into a fiber mixing machine for mixing, then taking dichloromethane, trichloromethane and toluene as solvents to obtain mixed molten liquid, injecting the mixed molten liquid into an electrostatic spinning device, and spraying to obtain mixed fibers with the diameter of 1600 nm;
s5, carrying out three times of processing, namely uniformly spraying the PA6 molten mass obtained in the step S2 on the mixed fibers through a spraying machine;
the conclusion can be that: the fiber degradation rate is 1-2 months, the fiber strength is 35g/d, and the fiber tensile strength is 450 MPa.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. A method for preparing biodegradable fiber is characterized by comprising the following steps:
s1, taking out raw materials, PLA: 70-80 parts of PET (polyethylene terephthalate), 10-15 parts of PA6, 5-8 parts of PVA: 3-5 parts;
s2, preliminary preparation, namely dissolving PLA into molten liquid by taking dichloromethane, trichloromethane and toluene as solvents, then heating and dissolving PET and PA6 into molten mass, and acetalizing polyvinyl alcohol fiber after PVA heat treatment to obtain polyvinyl formal fiber;
s3: the method comprises the following steps of performing primary processing, namely adding polyvinyl formal fibers into PLA molten liquid, mixing and heating to obtain a mixed spinning solution of the polyvinyl formal fibers and the PLA molten liquid, wherein the mixed spinning solution accounts for 12% -15% of the total mass of the spinning solution, introducing the spinning solution into an electrostatic spinning device, and spraying to prepare fibers with the diameter of 300-1500 nm;
s4: secondary processing, introducing the PET melt in the S2 into a melt spinning machine to obtain a fiber with the diameter of 200-1600 nm, introducing the fiber and the fiber obtained in the S3 into a fiber mixer for mixing, then taking dichloromethane, trichloromethane and toluene as solvents to obtain a mixed molten liquid, injecting the mixed molten liquid into an electrostatic spinning device, and spraying to obtain a mixed fiber with the diameter of 400-1600 nm;
and S5, carrying out three times of processing, namely uniformly spraying the PA6 molten mass obtained in the S2 on the mixed fibers through a spraying machine.
2. The method of claim 1, wherein the PLA in S1 is polylactic acid, the PET is aromatic polyester, the PA6 is polycaprolactam, and the PVA is polyvinyl alcohol.
3. The method for preparing biodegradable fiber according to claim 1, wherein the distance between the spinneret and the receiving plate in the electrospinning device is 18cm, and the electrospinning voltage is 15-25 kV.
4. The method for preparing biodegradable fiber according to claim 1, wherein the mass ratio of dichloromethane, chloroform and toluene is 5: 3: 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110369937.6A CN113089130A (en) | 2021-04-07 | 2021-04-07 | Preparation method of biodegradable fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110369937.6A CN113089130A (en) | 2021-04-07 | 2021-04-07 | Preparation method of biodegradable fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113089130A true CN113089130A (en) | 2021-07-09 |
Family
ID=76674286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110369937.6A Withdrawn CN113089130A (en) | 2021-04-07 | 2021-04-07 | Preparation method of biodegradable fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113089130A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113652067A (en) * | 2021-09-27 | 2021-11-16 | 广东巨圣新材料科技有限公司 | Method for preparing carbon fiber polylactic acid composite material |
| TWI810864B (en) * | 2022-03-25 | 2023-08-01 | 何建樺 | Biocomposite fiber and method for manufacturing the same |
-
2021
- 2021-04-07 CN CN202110369937.6A patent/CN113089130A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113652067A (en) * | 2021-09-27 | 2021-11-16 | 广东巨圣新材料科技有限公司 | Method for preparing carbon fiber polylactic acid composite material |
| TWI810864B (en) * | 2022-03-25 | 2023-08-01 | 何建樺 | Biocomposite fiber and method for manufacturing the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113089130A (en) | Preparation method of biodegradable fiber | |
| EP0436966B1 (en) | Methods for manufacture of porous resin mouldings, ultrafine fibres and ultrafine fibre nonwoven fabrics | |
| US6455156B2 (en) | Hollow fibers and manufacturing method of hollow fibers | |
| CN101230499B (en) | Coloured high-strength polyethylene fibre and method for manufacturing same | |
| KR20080111815A (en) | Manufacturing method of nanofiber using double nozzle | |
| Meireman et al. | Delamination resistant composites by interleaving bio-based long-chain polyamide nanofibers through optimal control of fiber diameter and fiber morphology | |
| CN105887223A (en) | High-speed centrifugal spinning device for producing nanofiber yarn in one-step shaping and production method of nanofiber yarn | |
| CN101476165B (en) | Polyhydroxybutyrate valeric acid copolyester fiber and dry spinning method | |
| JP4128580B2 (en) | Polyvinyl alcohol composite fiber | |
| Jalali et al. | A novel semi-bionanofibers through Introducing tragacanth Gum into PET attaining rapid wetting and degradation | |
| US20130093112A1 (en) | Process for producing a product | |
| Xuetao et al. | Preparation process of PBAT fiber membrane by melt differential electrospinning | |
| CN101215386A (en) | A kind of preparation method of nylon fiber reinforced epoxy resin composite material | |
| JP2011202289A (en) | Polymer alloy fiber and fiber structure | |
| US20200199787A1 (en) | Method for producing polyacetal fiber | |
| CN112725919A (en) | Porous active polyethylene fiber, preparation method and application thereof | |
| CN112267173A (en) | Degradable tow for cigarette filter tip and preparation method thereof | |
| CN112521737B (en) | Preparation process of high-strength polylactic acid composite material | |
| CN102926129A (en) | Preparation method of electrostatic spinning macromolecule anti-adhesion fiber membrane with good flexibility | |
| CN111058103B (en) | A method for preparing cross-linked macromolecular hydrogen bond composite fiber | |
| JP4002036B2 (en) | Easy-dividing polyamide composite fiber | |
| WO2020022532A1 (en) | Method for manufacturing high-strength nanocellulose long fiber through steam treatment and extrusion | |
| JP2004176205A (en) | Recycled polyester fiber for use as industrial material | |
| KR930011319B1 (en) | Method of manufacturing island-in-the-sea composite fiber | |
| KR20100006960A (en) | Process for producing polyketone fibers and polyketone fibers thereby |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210709 |
|
| WW01 | Invention patent application withdrawn after publication |