CN113584725A - Preparation process of PHBV and PLA biodegradable antibacterial deodorizing spunbonded nonwoven fabric - Google Patents
Preparation process of PHBV and PLA biodegradable antibacterial deodorizing spunbonded nonwoven fabric Download PDFInfo
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- CN113584725A CN113584725A CN202110816350.5A CN202110816350A CN113584725A CN 113584725 A CN113584725 A CN 113584725A CN 202110816350 A CN202110816350 A CN 202110816350A CN 113584725 A CN113584725 A CN 113584725A
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- phbv
- pla
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
- D04H3/147—Composite yarns or filaments
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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
- 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
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
- D04H3/009—Condensation or reaction polymers
- D04H3/011—Polyesters
Abstract
The invention discloses a preparation process of a biodegradable antibacterial deodorant spunbonded non-woven fabric of PHBV (polyhydroxybutyrate valerate) and PLA (poly lactic acid), which comprises 1-20% of PHBV material and 80-99% of PLA material by weight ratio, and the spun-bonded non-woven fabric is prepared by the spun-bonding process of blending the PHBV material and the PLA material, spinning, drafting, forming a net and heat-sealing. The spun-bonded non-woven fabric prepared by the invention has physical non-dissolution type low-polymerization-degree PHB, can destroy a biological membrane and a cell wall of bacteria to play the functions of antibiosis, bacteriostasis and deodorization, and the addition of the PHBV can effectively accelerate the overall degradation, and simultaneously, the prepared materials PHBV and PLA not only utilize biomass raw materials, but also the prepared products have biodegradability, belong to ecological environment-friendly materials with wide development prospect, and can bring positive effects to environment protection. Meanwhile, the fabric can be widely used as a disposable product for producing masks, paper diapers, sanitary towel surface layer base cloth and the like.
Description
Technical Field
The invention relates to the technical field of antibacterial and bacteriostatic fabrics, in particular to a preparation process of a biodegradable antibacterial and deodorant spun-bonded non-woven fabric made of PHBV and PLA.
Background
PLA is an abbreviation for polylactic acid, a thermoplastic aliphatic polyester. The lactic acid and lactide required for producing polylactic acid can be obtained by fermentation, dehydration and purification of renewable resources. PHBV is a novel biopolymer copolymer of 3-hydroxybutyrate and 3-hydroxyvalerate, which is a biomaterial produced by using starch as a raw material and applying a fermentation engineering technology. Is a biopolyester which is produced by bacteria, is digested by the bacteria, and is completely decomposed into carbon dioxide, water and biomass under soil or composting conditions. The existing non-woven fabric can not be completely degraded basically.
In order to solve the problems, the scheme is developed accordingly.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a preparation process of a biodegradable antibacterial deodorant spunbonded non-woven fabric made of PHBV and PLA, and solves the problems in the background technology.
(II) technical scheme
4. In order to achieve the purpose, the invention is realized by the following technical scheme: a preparation process of a PHBV and PLA biodegradable antibacterial deodorizing spunbonded non-woven fabric comprises 1-20% of PHBV material and 80-99% of PLA material by weight ratio, wherein the spunbonded non-woven fabric is prepared from PHBV bio-based completely degradable antibacterial master batch and PLA bio-based completely degradable master batch by the following spunbonded process:
s1, feeding the bio-based green environment-friendly antibacterial master batch into a screw extruder, heating, melting and extruding a spinning melt; simultaneously adding a certain proportion of bio-based PLA master batch, and fully stirring and uniformly mixing through a mixing hopper to obtain a molten material;
s2, filtering the molten material through a filter screen, metering and distributing the molten material, and extruding the molten material from small holes of a spinneret plate of a spinning device through a metering pump to form a plurality of filament flows;
s3, cooling the melt fine flow into filaments after the cross air blow cooling in a quench chamber, then laying the filaments on a web forming curtain after the high-speed air flow drafting in a drafting zone, and laying the fibers into a web on a web laying machine;
and S4, conveying the non-woven fabric to a hot rolling mill through a conveying net curtain, and self-bonding or hot rolling to obtain the non-woven fabric.
Preferably, the temperature of the hopper of the screw extruder in the step S1 is 180-250 ℃, and the temperature of the extrusion spinning is 150-200 ℃;
preferably, in step S3, the hot rolling temperature of the hot rolling mill is 160-180 ℃, the pressure is 0.5-0.7 MPa, the drafting speed is 1500 m/min-5000 m/min, and the drafting is performed by slit air flow.
Preferably, the PHBV and PLA fiber formation process is as follows: adding a basic culture medium, sterile air, glucose (fed-batch) and a strain into a fermentation tank, fermenting, continuously reacting in a reaction tank, performing solid-liquid separation, extracting wet materials, drying to obtain finished PHBV powder, granulating the PHBV powder by a granulator to obtain PHBV granules, blending with PLA, and spinning by spinning-grade resin slices to obtain the PHBV granules.
The antibacterial deodorizing spunbonded non-woven fabric belongs to a complete bio-based degradable product, and the bio-based degradable master batch is added into the fiber, so that the surface of the fiber has low polymerization degree PHBV with certain concentration through process control, and the cereal fiber achieves stable antibacterial and antiviral effects. It belongs to organic physical non-dissolved antibacterial antiviral cellulose, and its low-polymerization-degree PHBV can destroy the biological membrane and cell wall of bacteria, so that the substance in the bacterial cell can be leaked out to kill bacteria. PHB with low degree of polymerization can also destroy lipids and proteins of virus-encapsulated RNA, causing the virus to die.
The Hehe fiber is a novel antibacterial and deodorant synthetic fiber which is prepared by adding a specific proportion of novel bio-based green environment-friendly antibacterial master batch (PHBV polyhydroxybutyrate valerate) into a synthetic fiber spinning solution (polyester fiber, nylon and the like) for blending spinning, and endows the fiber with excellent performances such as antibacterial, deodorant and skin-friendly functions while continuing various excellent textile wearing performances of the synthetic fiber.
The PHBV is obtained through the technological process including adding basic culture medium, sterile air, glucose and bacteria into fermentation tank, fermentation, reaction in reaction tank, solid-liquid separation, wet material extraction and stoving to obtain PHBV powder product, pelletizing to obtain PHBV pellet, mixing with PLA, slicing with spinning resin and spinning to obtain cellulose fiber.
(III) advantageous effects
After adopting the technical scheme, compared with the prior art, the invention has the following advantages: the invention relates to a preparation process of a PHBV and PLA biodegradable antibacterial deodorizing spunbonded nonwoven, wherein PHBV and PLA organisms are completely degradable bio-based master batches, and the produced product can be completely degraded, has a strong environment-friendly function, and can be widely applied to producing masks, hair bath towels, paper diapers, sanitary towel surface layer base fabrics and the like as a disposable material.
Detailed Description
The present invention is further illustrated by the following examples.
A preparation process of a PHBV and PLA biodegradable antibacterial deodorizing spunbonded nonwoven fabric is characterized in that the PHBV and PLA biodegradable antibacterial deodorizing spunbonded nonwoven fabric is obtained by the following method:
s1, feeding the polyester fiber slices into a screw extruder, heating, melting and extruding a spinning melt; simultaneously adding the novel bio-based green environment-friendly antibacterial master batch and the bio-based PLA master batch which are processed according to a certain proportion, and fully stirring and uniformly mixing through a mixing hopper;
s2, filtering the melt through a filter screen, and extruding the melt from small holes of a spinneret plate of a spinning device through a metering pump to form a plurality of filament flows;
s3, cooling the melt fine flow into filaments after the cross air blowing cooling in the quenching chamber, then laying the filaments on a web forming curtain after the high-speed air flow drawing in the drawing zone, laying the fibers on a web laying machine into a web, and conveying the web to a hot rolling machine through a conveying net curtain to be reinforced into cloth.
In the step S1, the temperature of a hopper of the screw extruder is 180-250 ℃, and the temperature of extruded spinning is 150-200 ℃; in step S3, the hot rolling bonding temperature of the hot rolling mill is 160-180 ℃, the pressure is 0.5-0.7 MPa, and the production speed is 22-25 m/r.
The PHBV material and the PLA material are composed of 1-20 percent, 80-99 percent.
The cellulose fiber is formed by blending a bio-based degradable antibacterial master batch and PLA, slicing the blend by using spinning-grade resin and spinning, and the bio-based degradable antibacterial master batch is obtained by melting and chain extending PHBV granules.
Since the molecular weight of PHBV powder is significantly reduced after melt extrusion, it is less thermally stable due to severe degradation under processing conditions of about 159 ℃. Compared with the PHBV directly extruded by melting, the reactive extruded sample added with the prepolymer in the scheme has effectively improved number average molecular weight and weight average molecular weight, thereby realizing the improvement of the thermal stability.
Compared with the silk with similar texture, the price of the cereal synthetic fiber of the product is less than 1/3, and compared with the alginate fiber or the chitin fiber with natural antibacterial function, the cereal synthetic fiber has the lowest price, the cost performance can completely replace the listed fiber, and the market prospect is better.
In the test result after 50 times of washing by the test standard AATCC100-2012 standard (absorption method), the inhibition rate of staphylococcus aureus (the inhibition rate is more than 99%), fringel and tinea (the inhibition rate is more than 99%), klebsiella pneumoniae (the inhibition rate is more than 99%), and candida albicans (the inhibition rate is more than 92.86%).
In the test standard GB/T20944.2-2007 absorption method, methicillin-resistant staphylococcus aureus (superbacteria) (the bacteriostasis rate is more than or equal to 99 percent).
In the test standard ISO18184:2014(E), the inhibition rate of the influenza A virus (H1N1) is 99.68%, and the inhibition rate of the influenza A virus (H3N2) is 99.57%.
The detection proves that the product of the 'prochloraz' has long-acting inhibition effect on escherichia coli (with 99 percent of inhibition rate), staphylococcus aureus (with 99 percent of inhibition rate), candida albicans (with 92 percent of inhibition rate) and the like.
The performance of the cereal fiber material of the product in other aspects is described as follows:
dyeing property: almost all colors can be dyed, and the dye-uptake rate is over 90 percent at the dyeing temperature of 100 ℃.
The thickness of the dyed cloth is small, about 0.298 mm, so that the dyed cloth can be regarded as light and thin fabric. The pilling resistance reaches level 5. Meanwhile, the heat conductivity coefficient is 0.042W/m × k, and the maximum heat flux is 0.12W/cm2And heat dissipation can be effectively performed. Second, it has an air permeability value of 0.0132kPa s/m, is able to shed moisture, remains breathable and dry, and a drape value of 27.9% indicates that such fabrics are soft and comfortable to wear.
The properties of the dyed fabric of dispersion 74 are given in the following table,
in light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and the protection scope must be determined by the scope of the claims.
Claims (4)
1. A preparation process of a PHBV and PLA biodegradable antibacterial deodorizing spunbonded nonwoven fabric is characterized by comprising the following steps: the spun-bonded non-woven fabric is prepared from 1-20% of PHBV material and 80-99% of PLA material by weight, wherein the spun-bonded non-woven fabric is prepared from PHBV bio-based completely degradable antibacterial master batch and PLA bio-based completely degradable master batch by the following spun-bonded process:
s1, feeding the bio-based green environment-friendly antibacterial master batch into a screw extruder, heating, melting and extruding a spinning melt; simultaneously adding a certain proportion of bio-based PLA master batch, and fully stirring and uniformly mixing through a mixing hopper to obtain a molten material;
s2, filtering the molten material through a filter screen, metering and distributing the molten material, and extruding the molten material from small holes of a spinneret plate of a spinning device through a metering pump to form a plurality of filament flows;
s3, cooling the melt fine flow into filaments after the cross air blow cooling in a quench chamber, then laying the filaments on a web forming curtain after the high-speed air flow drafting in a drafting zone, and laying the fibers into a web on a web laying machine;
and S4, conveying the non-woven fabric to a hot rolling mill through a conveying net curtain, and self-bonding or hot rolling to obtain the non-woven fabric.
2. The preparation process of the PHBV and PLA biodegradable antibacterial deodorizing spunbonded nonwoven fabric according to claim 1 is characterized in that: in the step S1, the temperature of the hopper of the screw extruder is 180-250 ℃, and the temperature of the extruded spinning is 150-200 ℃.
3. The preparation process of the PHBV and PLA biodegradable antibacterial deodorizing spunbonded nonwoven fabric according to claim 1 is characterized in that: in step S3, the hot rolling bonding temperature of the hot rolling mill is 160-180 ℃, the pressure is 0.5-0.7 MPa, the drafting speed is 1500 m/min-5000 m/min, and the drafting adopts slit type air flow drafting.
4. The preparation process of the PHBV and PLA biodegradable antibacterial deodorizing spunbonded nonwoven fabric according to claim 1 is characterized in that: the PHBV and PLA fiber formation process is as follows: adding a basic culture medium, sterile air, glucose (fed-batch) and a strain into a fermentation tank, fermenting, continuously reacting in a reaction tank, performing solid-liquid separation, extracting wet materials, drying to obtain finished PHBV powder, granulating the PHBV powder by a granulator to obtain PHBV granules, blending with PLA, and spinning by spinning-grade resin slices to obtain the PHBV granules.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110816350.5A CN113584725A (en) | 2021-07-20 | 2021-07-20 | Preparation process of PHBV and PLA biodegradable antibacterial deodorizing spunbonded nonwoven fabric |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110816350.5A CN113584725A (en) | 2021-07-20 | 2021-07-20 | Preparation process of PHBV and PLA biodegradable antibacterial deodorizing spunbonded nonwoven fabric |
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| CN113584725A true CN113584725A (en) | 2021-11-02 |
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| CN202110816350.5A Pending CN113584725A (en) | 2021-07-20 | 2021-07-20 | Preparation process of PHBV and PLA biodegradable antibacterial deodorizing spunbonded nonwoven fabric |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115012050A (en) * | 2022-06-24 | 2022-09-06 | 宁波禾素纤维有限公司 | Production process of PHBV and PLA blended bio-based fiber |
| CN115110316A (en) * | 2022-04-24 | 2022-09-27 | 山东恒鹏卫生用品有限公司 | Degradable non-woven fabric and preparation process thereof |
| CN116043363A (en) * | 2022-12-19 | 2023-05-02 | 龙帛生物科技有限公司 | Bio-based slow-release washing fiber and dish washing towel containing same |
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| US6191196B1 (en) * | 1999-04-12 | 2001-02-20 | The United States Of America As Represented By The Secretary Of Agriculture | Biodegradable polymer compositions, methods for making same and articles therefrom |
| CN102181960A (en) * | 2011-04-22 | 2011-09-14 | 中国科学院宁波材料技术与工程研究所 | Biobased degradable fibers containing PHBV (poly<3-hydroxybutyrate-co-3-hydroxyvalerate>) and preparation method thereof |
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| CN112095174A (en) * | 2020-09-04 | 2020-12-18 | 南京禾素时代抗菌材料科技有限公司 | PHBV material blended antibacterial and antiviral ES fiber |
| CN113123016A (en) * | 2021-03-05 | 2021-07-16 | 南京禾素时代抗菌材料科技有限公司 | Preparation method of PHES (polyhydroxybutyrate-hydroxyvalerate) hot-air non-woven fabric containing PHBV (polyhydroxybutyrate-hydroxyvalerate) material and having antibacterial and antiviral effects |
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2021
- 2021-07-20 CN CN202110816350.5A patent/CN113584725A/en active Pending
Patent Citations (6)
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| US6191196B1 (en) * | 1999-04-12 | 2001-02-20 | The United States Of America As Represented By The Secretary Of Agriculture | Biodegradable polymer compositions, methods for making same and articles therefrom |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110316A (en) * | 2022-04-24 | 2022-09-27 | 山东恒鹏卫生用品有限公司 | Degradable non-woven fabric and preparation process thereof |
| CN115012050A (en) * | 2022-06-24 | 2022-09-06 | 宁波禾素纤维有限公司 | Production process of PHBV and PLA blended bio-based fiber |
| CN116043363A (en) * | 2022-12-19 | 2023-05-02 | 龙帛生物科技有限公司 | Bio-based slow-release washing fiber and dish washing towel containing same |
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