CN109112668B - Preparation method of fibroin polylactic acid fiber - Google Patents
Preparation method of fibroin polylactic acid fiber Download PDFInfo
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- CN109112668B CN109112668B CN201810819099.6A CN201810819099A CN109112668B CN 109112668 B CN109112668 B CN 109112668B CN 201810819099 A CN201810819099 A CN 201810819099A CN 109112668 B CN109112668 B CN 109112668B
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- 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
- D01F8/02—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from cellulose, cellulose derivatives, or proteins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
- C08G63/08—Lactones or lactides
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- 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
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Abstract
The invention provides silk fibroin polylactic acid fiber containing silk fibroin modified polylactic acid, which is prepared by adding DL-lactide and polyethylene glycol into a silk fibroin aqueous solution, stirring for reaction to obtain a silk fibroin modified polylactic acid solution, immersing silk polylactic acid composite yarns subjected to irradiation pretreatment into the silk fibroin modified polylactic acid solution, and performing ultrasonic washing and drying. The cross section of the silk fibroin polylactic acid fiber containing the silk fibroin modified polylactic acid prepared by the method is of a skin-core structure, the core layer is silk polylactic acid composite yarn, the skin layer is silk fibroin modified polylactic acid, and the skin layer and the core layer are connected through chemical bonds and hydrogen bonds.
Description
The invention relates to a division application of a patent with the application number of 2016103198121 and the application date of 2016, 05 and 13, namely 'silk fibroin polylactic acid fiber containing silk fibroin modified polylactic acid'.
Technical Field
The invention belongs to the technical field of textile materials, and particularly relates to silk fibroin polylactic acid fiber containing silk fibroin modified polylactic acid.
Background
With the development of science and technology and society, chemical, polymer and nano technologies are rapidly developed, however, chemical fibers produced in a traditional chemical way impose a great burden on the environment and resources, so the protection of the environment and the use of renewable resources are increasingly concerned by people for the sustainable development of society. In the textile field, people not only require the fiber to have good wearability and bright and novel color, but also require green environmental protection and skin-friendly comfort.
Polylactic acid fiber, also called corn fiber and PLA fiber, is made from lactic acid obtained by fermenting and converting starch such as corn and wheat as raw material, and is prepared by cyclizing and dimerizing monomer lactic acid to obtain lactide, and then ring-opening polymerizing the lactide to obtain lactide, or by directly polymerizing lactic acid and melt spinning to obtain the fiber. The polylactic acid fiber does not use petrochemical and other raw materials at all, has less energy consumption and pollution during production and processing, does not generate carbon monoxide toxic gas during biodegradation and combustion, and is one of green fibers with development prospect.
The silk is a natural protein, has excellent mechanical property and skin-friendly property, is called as fiber queen, has good processing property, can be made into various forms such as fiber, powder, gel, solution, film and the like according to different purposes, and can be used as a base material or an additive to improve the functionality of the composite material.
The corn protein fiber in the current market is obtained by extracting protein from animals and plants as a raw material, blending, crosslinking and grafting the protein with polylactic acid fiber to form spinning solution, and finally carrying out processes of spinning, curing, drafting, drying, curling, shaping and the like. The fiber material has weak processability and mechanical strength and poor practicability.
The silk fibroin polylactic acid blended fiber disclosed in Chinese literature ("performance research of silk fibroin polylactic acid blended fiber", Kjew, university of Suzhou, Master thesis 2006, 5/15) is prepared by dissolving silk fibroin into a film and dried polylactic acid particles into an HFIP solvent, performing oscillation dissolution, filtration and vacuum defoaming to obtain a spinning solution, and performing wet spinning, heat setting and shaping to obtain the silk fibroin polylactic acid blended fiber. Compared with regenerated silk fibroin fibers, the silk fibroin-polylactic acid blended fibers prepared by the method have small strength and elongation, and the breaking strength and the breaking elongation of the blended fibers are in a descending trend along with the increase of the specific gravity of polylactic acid. The silk protein/polylactic acid blend material and the melt blending preparation method thereof disclosed in the chinese patent CN 104530670a (published japanese 2015.4.22) are characterized in that silk protein, polylactic acid, silk protein and polylactic acid copolymer are mixed at a high speed, and are heated, melted and mixed to obtain a blend of polylactic acid and silk fibroin, and are extruded and granulated to obtain the silk protein/polylactic acid blend material.
Disclosure of Invention
The invention aims to solve the technical problem of providing silk fibroin polylactic acid fiber containing silk fibroin modified polylactic acid, which is prepared by taking silk fibroin aqueous solution, DL-lactide and polyethylene glycol as raw materials, namely silk fibroin modified polylactic acid solution, and immersing silk polylactic acid composite yarns subjected to irradiation pretreatment into the silk fibroin polylactic acid composite yarns. The silk fibroin polylactic acid fiber containing silk fibroin modified polylactic acid prepared by the method has good mechanical strength, is green and skin-friendly, and has good serviceability.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the silk fibroin-modified polylactic acid-containing silk fibroin polylactic acid fiber is characterized in that the silk fibroin-modified polylactic acid-containing silk fibroin polylactic acid fiber comprises silk fibroin and polylactic acid, the physical form of the silk fibroin is liquid and fiber, the physical form of the polylactic acid is not liquid and fiber, and the mass fraction of the silk fibroin in the silk fibroin polylactic acid fiber is 30-60%.
Preferably as above-mentioned technical scheme, the silk fibroin polylactic acid fiber who contains silk fibroin modified polylactic acid contains cortex and sandwich layer, the sandwich layer is silk polylactic acid composite yarn, the cortex is silk fibroin modified polylactic acid, connect through chemical bond and hydrogen bond between cortex and the sandwich layer.
The invention also provides a preparation method of the silk fibroin polylactic acid fiber containing the silk fibroin modified polylactic acid, which comprises the following steps:
(1) boiling and degumming silk, washing and then airing at room temperature to obtain pretreated silk fiber, dissolving and dialyzing the pretreated silk fiber to form silk fibroin aqueous solution, adding DL-lactide and polyethylene glycol into the silk fibroin aqueous solution, and stirring and reacting to obtain silk fibroin modified polylactic acid solution;
(2) arranging and bundling the pretreated silk fibers prepared in the step (1) and 5-8 polylactic acid fibers in parallel, and twisting to form silk polylactic acid composite yarns;
(3) and (3) after the silk polylactic acid composite yarn prepared in the step (2) is subjected to irradiation pretreatment, immediately entering the silk fibroin modified polylactic acid solution prepared in the step (1) for vibration and impregnation, taking out and drying, and after ultrasonic water washing, drying to obtain the silk fibroin polylactic acid fiber containing the silk fibroin modified polylactic acid.
Preferably, in the step (1), the silk fiber is a continuous fiber, and the fineness of the silk fiber is 20/22D.
Preferably, in the step (1), the relative molecular mass of the silk fibroin in the silk fibroin aqueous solution is 10000-25000, and the mass fraction of the silk fibroin in the silk fibroin aqueous solution is 2-10%.
Preferably, in the step (1), the volume ratio of the silk fibroin aqueous solution, the DL-lactide and the polyethylene glycol is 80-100:3-5: 2-6.
Preferably, in the step (2), the fineness of the polylactic acid fiber is 2 to 5D.
Preferably, in the step (2), the twist degree of the twisting is 400-.
Preferably, in the step (3), the irradiation pretreatment is performed for 3-5min under the intensity of 10-20 kGy.
Preferably, in the step (3), the temperature of the shaking and dipping is 35-40 ℃, and the time of the shaking and dipping is 15-30 min.
Compared with the prior art, the invention has the following beneficial effects:
(1) the polylactic acid fiber is soft, smooth and greasy, is soft, drapable, moisture-absorbing and breathable, is soft and comfortable in silk shape, good in mechanical strength, excellent in heat resistance and ultraviolet resistance, silk is a fiber material with excellent performance, silk fibroin contained in the silk is also a pure natural protein, is similar to collagen, is good in biocompatibility for a human body and good in skin-friendly performance, and the silk fibroin polylactic acid fiber prepared by combining the silk fibroin and the silk fibroin polylactic acid fiber is excellent in performance, green, environment-friendly and comfortable in skin-friendly performance.
(2) The silk fibroin polylactic acid fiber prepared by the invention is of a skin-core structure, the core layer is silk polylactic acid composite yarn, and the core layer uses silk fiber and polylactic acid fiber as raw materials, so that the purity of the raw materials of the silk fibroin polylactic acid fiber is firstly ensured, only silk fibroin and polylactic acid are contained, and the silk fiber and the polylactic acid fiber are compounded to form the composite yarn, so that the mechanical property of the silk fibroin polylactic acid fiber is ensured, and the problem of low mechanical strength of blended fiber is avoided.
(3) The silk fibroin polylactic acid fiber prepared by the invention is of a skin-core structure, the skin layer is silk fibroin modified polylactic acid, the silk fibroin modified polylactic acid contains both silk fibroin and polylactic acid, namely contains both silk fibroin block and polylactic acid block, so that the silk fiber and polylactic acid fiber of the core layer have affinity, chemical bonds and hydrogen bonds can be formed between the skin layer and the core layer, the firmness between the skin-core structures is ensured, and the surface of the silk polylactic acid composite yarn of the core layer is subjected to pre-radiation treatment, so that the surface of the fiber is activated, and the silk fibroin modified polylactic acid of the skin layer can be combined to form stable connection.
(4) The silk fibroin polylactic acid fiber containing the silk fibroin modified polylactic acid prepared by the invention only contains two raw materials of silk fibroin and polylactic acid, and compared with the conventional silk polylactic acid composite yarn and pure silk fibroin polylactic acid fiber, the prepared silk fibroin polylactic acid fiber has the advantages of more uniform material distribution, stable performance, higher mechanical strength, better biocompatibility, wider application range, greenness and environmental protection, and can be used in the fields of textile and medical treatment.
Detailed Description
The present invention will be described in detail with reference to specific embodiments, which are illustrative of the invention and are not to be construed as limiting the invention.
Example 1:
(1) boiling and degumming 20/22D silk continuous fibers, washing, airing at room temperature to obtain pretreated silk fibers, dissolving and dialyzing the pretreated silk fibers to form a silk fibroin aqueous solution with the mass fraction of 2%, wherein the relative molecular mass of silk fibroin is 10000, adding 80 parts by volume of the silk fibroin aqueous solution into 3 parts of DL-lactide and 2 parts of polyethylene glycol, and stirring for reaction to obtain the silk fibroin modified polylactic acid solution.
(2) And (2) arranging and bundling the pretreated silk fibers prepared in the step (1) and 5 2D polylactic acid fibers in parallel, and twisting for 400 twists/10 cm to form the silk polylactic acid composite yarn.
(3) And (3) irradiating the silk polylactic acid composite yarn prepared in the step (2) for 3min under the intensity of 10kGy, immediately putting the silk fibroin polylactic acid composite yarn into the silk fibroin modified polylactic acid solution prepared in the step (1), oscillating and soaking the silk fibroin modified polylactic acid solution for 15min at 35 ℃, taking out the silk fibroin modified polylactic acid composite yarn, drying the silk fibroin modified polylactic acid composite yarn, and performing ultrasonic water washing and drying to obtain the silk fibroin polylactic acid fiber containing the silk fibroin modified polylactic acid.
Example 2:
(1) boiling and degumming 20/22D silk continuous fibers, washing, airing at room temperature to obtain pretreated silk fibers, dissolving and dialyzing the pretreated silk fibers to form a silk fibroin aqueous solution with the mass fraction of 10%, wherein the relative molecular mass of silk fibroin is 25000, adding 5 parts of DL-lactide and 6 parts of polyethylene glycol into 100 parts of the silk fibroin aqueous solution, and stirring for reaction to obtain the silk fibroin modified polylactic acid solution.
(2) And (2) arranging and bundling the pretreated silk fibers prepared in the step (1) and 8 5D polylactic acid fibers in parallel, and twisting 1200 twists/10 cm to form the silk polylactic acid composite yarn.
(3) And (3) irradiating the silk polylactic acid composite yarn prepared in the step (2) for 5min under the intensity of 20kGy, immediately putting the silk fibroin polylactic acid composite yarn into the silk fibroin modified polylactic acid solution prepared in the step (1), oscillating and soaking the silk fibroin modified polylactic acid solution at 40 ℃ for 30min, taking out the silk fibroin polylactic acid composite yarn, drying the silk fibroin modified polylactic acid composite yarn after ultrasonic water washing, and drying the silk fibroin polylactic acid composite yarn to obtain the silk fibroin polylactic acid fiber containing the silk fibroin modified polylactic acid.
Example 3:
(1) boiling and degumming 20/22D silk continuous fibers, washing, airing at room temperature to obtain pretreated silk fibers, dissolving and dialyzing the pretreated silk fibers to form a silk fibroin aqueous solution with the mass fraction of 5%, wherein the relative molecular mass of silk fibroin is 20000, adding 4 parts of DL-lactide and 3 parts of polyethylene glycol into 90 parts of silk fibroin aqueous solution by volume, and stirring for reaction to obtain the silk fibroin modified polylactic acid solution.
(2) And (2) arranging and bundling the pretreated silk fibers prepared in the step (1) and 6 4D polylactic acid fibers in parallel, and twisting for 600 twists/10 cm to form the silk polylactic acid composite yarn.
(3) And (3) irradiating the silk polylactic acid composite yarn prepared in the step (2) for pretreatment for 4min under the intensity of 15kGy, immediately putting the silk fibroin polylactic acid composite yarn into the silk fibroin modified polylactic acid solution prepared in the step (1), oscillating and soaking for 20min at 37 ℃, taking out the silk fibroin modified polylactic acid composite yarn, drying the silk fibroin modified polylactic acid composite yarn, ultrasonically washing the silk fibroin modified polylactic acid composite yarn, and drying the silk fibroin modified polylactic acid composite yarn to obtain the silk fibroin polylactic acid fiber containing the silk fibroin modified polylactic.
Example 4:
(1) boiling and degumming 20/22D silk continuous fibers, washing, airing at room temperature to obtain pretreated silk fibers, dissolving and dialyzing the pretreated silk fibers to form a silk fibroin aqueous solution with the mass fraction of 8%, wherein the relative molecular mass of silk fibroin is 15000, adding 3 parts of DL-lactide and 5 parts of polyethylene glycol into 85 parts of the silk fibroin aqueous solution by volume, and stirring for reaction to obtain the silk fibroin modified polylactic acid solution.
(2) And (2) arranging and bundling the pretreated silk fibers prepared in the step (1) and 7 3D polylactic acid fibers in parallel, and twisting for 800 twists/10 cm to form the silk polylactic acid composite yarn.
(3) And (3) irradiating the silk polylactic acid composite yarn prepared in the step (2) for 5min under the intensity of 10kGy, immediately putting the silk fibroin polylactic acid composite yarn into the silk fibroin modified polylactic acid solution prepared in the step (1), oscillating and soaking the silk fibroin modified polylactic acid solution at 35 ℃ for 25min, taking out the silk fibroin modified polylactic acid composite yarn, drying the silk fibroin modified polylactic acid composite yarn, and washing the silk fibroin modified polylactic acid composite yarn with ultrasonic water and drying the silk fibroin modified polylactic acid composite yarn to obtain the silk fibroin polylactic.
Example 5:
(1) boiling and degumming 20/22D silk continuous fibers, washing, airing at room temperature to obtain pretreated silk fibers, dissolving and dialyzing the pretreated silk fibers to form a silk fibroin aqueous solution with the mass fraction of 6%, wherein the relative molecular mass of silk fibroin is 13000, adding 3 parts of DL-lactide and 5 parts of polyethylene glycol into 100 parts of the silk fibroin aqueous solution, and stirring for reaction to obtain the silk fibroin modified polylactic acid solution.
(2) And (2) arranging and bundling the pretreated silk fibers prepared in the step (1) and 5 polylactic acid fibers in parallel, and twisting for 1000 twists/10 cm to form the silk polylactic acid composite yarn.
(3) And (3) irradiating the silk polylactic acid composite yarn prepared in the step (2) for 5min under the intensity of 10kGy, immediately putting the silk fibroin polylactic acid composite yarn into the silk fibroin modified polylactic acid solution prepared in the step (1), oscillating and soaking the silk fibroin modified polylactic acid solution for 15min at 35 ℃, taking out the silk fibroin modified polylactic acid composite yarn, drying the silk fibroin modified polylactic acid composite yarn, and performing ultrasonic water washing and drying to obtain the silk fibroin polylactic acid fiber containing the silk fibroin modified polylactic acid.
Example 6:
(1) boiling and degumming the 20/22D silk continuous fiber, washing, airing at room temperature to obtain pretreated silk fiber, dissolving and dialyzing the pretreated silk fiber to form a silk fibroin aqueous solution with the mass fraction of 10%, wherein the relative molecular mass of the silk fibroin is 10000, adding 80 parts by volume of the silk fibroin aqueous solution into 5 parts of DL-lactide and 5 parts of polyethylene glycol, and stirring for reaction to obtain the silk fibroin modified polylactic acid solution.
(2) And (2) arranging and bundling the pretreated silk fibers prepared in the step (1) and 6 4D polylactic acid fibers in parallel, and twisting for 1000 twists/10 cm to form the silk polylactic acid composite yarn.
(3) And (3) irradiating the silk polylactic acid composite yarn prepared in the step (2) for 3min under the intensity of 20kGy, immediately putting the silk fibroin polylactic acid composite yarn into the silk fibroin modified polylactic acid solution prepared in the step (1), oscillating and soaking the silk fibroin modified polylactic acid solution at 40 ℃ for 15min, taking out the silk fibroin modified polylactic acid composite yarn, drying the silk fibroin modified polylactic acid composite yarn, and washing the silk fibroin modified polylactic acid composite yarn with ultrasonic water and drying the silk fibroin modified polylactic acid composite yarn to obtain the silk fibroin polylactic.
Through detection, the results of the content, diameter, breaking strength and breaking elongation of the silk fibroin polylactic acid fibers containing the silk fibroin modified polylactic acid prepared in examples 1 to 6 and the silk fibroin of the silk polylactic acid composite yarn and the silk fibroin polylactic acid fibers in the prior art are as follows:
as can be seen from the above table, the mechanical strength of the silk fibroin polylactic acid fiber containing silk fibroin modified polylactic acid prepared by the invention is far superior to that of silk polylactic acid composite yarn and silk fibroin polylactic acid fiber in the prior art, so that the application range is wide.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. A preparation method of fibroin polylactic acid fiber is characterized in that: the method comprises the following steps:
(1) boiling and degumming silk, washing and then airing at room temperature to obtain pretreated silk fiber, dissolving and dialyzing the pretreated silk fiber to form silk fibroin aqueous solution, adding DL-lactide and polyethylene glycol into the silk fibroin aqueous solution, and stirring and reacting to obtain silk fibroin modified polylactic acid solution;
(2) arranging and bundling the pretreated silk fibers prepared in the step (1) and 5-8 polylactic acid fibers in parallel, and twisting to form silk polylactic acid composite yarns;
(3) after the silk polylactic acid composite yarn prepared in the step (2) is subjected to irradiation pretreatment, the silk fibroin composite yarn immediately enters the silk fibroin modified polylactic acid solution prepared in the step (1) for vibration impregnation, is taken out for drying, and is subjected to ultrasonic water washing, so that silk fibroin polylactic acid fibers containing the silk fibroin modified polylactic acid are obtained in a drying manner, the silk fibroin polylactic acid fibers containing the silk fibroin modified polylactic acid contain a skin layer and a core layer, the core layer is the silk polylactic acid composite yarn, the skin layer is the silk fibroin modified polylactic acid, and the skin layer and the core layer are connected through chemical bonds and hydrogen bonds.
2. The method for preparing the silk fibroin-polylactic acid fiber according to claim 1, wherein the silk fibroin-modified polylactic acid-containing silk fibroin-polylactic acid fiber comprises silk fibroin and polylactic acid, and the mass fraction of silk fibroin in the silk fibroin-polylactic acid fiber is 30-60%.
3. The method for preparing silk fibroin-polylactic acid fiber according to claim 1, wherein in the step (1), the pretreated silk fiber is continuous fiber, and the fineness of the silk fiber is 20/22D.
4. The method for preparing the silk fibroin-polylactic acid fiber according to claim 1, wherein in the step (1), the relative molecular mass of the silk fibroin in the silk fibroin aqueous solution is 10000-25000, and the mass fraction of the silk fibroin in the silk fibroin aqueous solution is 2-10%.
5. The method for preparing the silk fibroin-polylactic acid fiber according to claim 1, wherein in the step (1), the volume ratio of the silk fibroin aqueous solution, DL-lactide and polyethylene glycol is 80-100:3-5: 2-6.
6. The method for preparing the silk fibroin-polylactic acid fiber according to claim 1, wherein in the step (2), the titer of the polylactic acid fiber is 2-5D.
7. The method for preparing the silk fibroin polylactic acid fiber according to claim 1, wherein in the step (2), the twist degree of twisting is 400-1200 twist/10 cm.
8. The method for preparing the silk fibroin-polylactic acid fiber according to claim 1, wherein in the step (3), the irradiation pretreatment is performed for 3-5min under the intensity of 10-20 kGy.
9. The method for preparing the silk fibroin polylactic acid fiber according to claim 1, wherein in the step (3), the temperature of the oscillation dipping is 35-40 ℃, and the time of the oscillation dipping is 15-30 min.
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| CN201810819099.6A CN109112668B (en) | 2016-05-13 | 2016-05-13 | Preparation method of fibroin polylactic acid fiber |
| CN201610319812.1A CN105970344B (en) | 2016-05-13 | 2016-05-13 | A kind of fibroin acid fiber by polylactic of the polydactyl acid containing fibroin albumen |
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| CN109750382A (en) * | 2019-01-11 | 2019-05-14 | 石狮市中纺学服装及配饰产业研究院 | A kind of biodegradable composite fiber of polydactyl acid containing milk protein |
| CN112043878B (en) * | 2020-08-06 | 2022-09-06 | 苏州大学 | Anticoagulation blood vessel stent covering film and preparation method thereof |
| CN114426657B (en) * | 2021-10-15 | 2023-07-07 | 佛山市集北龙华海绵制造有限公司 | High-air-permeability antibacterial skin-friendly sponge and preparation method thereof |
| CN115029830B (en) * | 2022-06-21 | 2024-04-09 | 湖南科力嘉纺织股份有限公司 | Method for preparing high-compactness cotton yarn by using compact spinning process |
| CN115852556A (en) * | 2022-12-26 | 2023-03-28 | 安徽欣盛新材料有限公司 | Ultraviolet-proof polyester fabric and manufacturing method thereof |
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| CN102102268A (en) * | 2011-03-04 | 2011-06-22 | 嘉兴学院 | Method for preparing colored fabric containing polylactic acid fiber and silk components |
| CN103341209A (en) * | 2013-07-08 | 2013-10-09 | 苏州大学 | Silk fibroin nanofiber membrane and preparation method thereof |
| CN104530670A (en) * | 2014-12-22 | 2015-04-22 | 南京林业大学 | Fibroin/polylactic acid blend material and melt-blending preparation method thereof |
| CN104831416A (en) * | 2015-03-25 | 2015-08-12 | 苏州威尔德工贸有限公司 | Prolamine-modified polylactic acid regenerated fibre and preparing method thereof |
| CN105133117A (en) * | 2015-07-07 | 2015-12-09 | 宁波武田纺织有限公司 | Method for preparing high-elastic wrap yarn |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105970344A (en) | 2016-09-28 |
| CN109112668A (en) | 2019-01-01 |
| CN105970344B (en) | 2018-07-20 |
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