CN1664187A - Regenerable reclaiming type polyvinyl alcohol nano fabric and method for making same - Google Patents
Regenerable reclaiming type polyvinyl alcohol nano fabric and method for making same Download PDFInfo
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- CN1664187A CN1664187A CN 200510038319 CN200510038319A CN1664187A CN 1664187 A CN1664187 A CN 1664187A CN 200510038319 CN200510038319 CN 200510038319 CN 200510038319 A CN200510038319 A CN 200510038319A CN 1664187 A CN1664187 A CN 1664187A
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Abstract
The invention publishs a recycled polyethylene pure nanometre fiber fabric that is composed of nanometre level polyethylene pure fiber. Fiber diameter is 50-400 nanometre and fiber crystal degree is 20-50%. The preparation is that dissolve the polyethylene pure grain in 70-800C water and churn up to solve and get the colorless lucid polyethylene pure water liquor of which consistence is 6-12%. Adopt static filature method to get the liquor; the voltage is 6-20 thousands. The distance from spew silk jaws to receive screen is 10-20 cm and temperature is 20-300C that can get polyethylene pure nanometre fiber fabric. In the invention, fabric have excellent adsorption, bar and cleanliness ability and possess the mechanism capability of meet the need of adsorption, defend or cleanliness material. And it is easy to reclaim and use so that it is zoology circumstance material of repeat rebirth circular use.
Description
Technical field
The present invention relates to a kind of bondedfibre fabric and preparation method thereof, being specifically related to a kind of is the nano fabrics of feedstock production with the polyvinyl alcohol, and this process for making such fabric, and the fabric that is obtained can regeneration cycle use.
Background technology
Polyvinyl alcohol (PVA) is a kind of water miscible synthetic high polymer, is dissolvable in water in the water of uniform temperature.Because but PVA has good physical and chemical performance and film forming, can spin and biocompatibility, therefore the blend film of blended fiber, PVA film, PVA and other high polymers of PVA fiber, PVA and other polymer has a wide range of applications at weaving, biomedicine and other field.In weaving processing, generally adopt melt spinning process spinning water-solubility PVA fiber or PVA is carried out preparing polyvinyl alcohol fibre after acetalation is handled.The polyvinyl alcohol fibre of high-strength and high-modulus is used for fabrics for industrial use, and general polyvinyl alcohol fibre can be woven into the fabric with COTTON FABRIC style, water soluble vinylon can with other fiber blends after be woven into all kinds of products with loose structure feature.The PVA that is used for biomedical sector mainly is the form with film or blend film.
Method of electrostatic spinning is a polymeric spray static stretch spinning method, is a kind of important method for preparing superfine fibre.The fiber that utilizes the method for electrostatic spinning to obtain is much thinner than traditional spinning process, can prepare diameter and be tens or the fibrous bondedfibre fabric of hundreds of nanometer, because fiber specific surface area is big, so its physical and mechanical properties and chemical property etc. will be different from general polyvinyl alcohol fibre.Method of electrostatic spinning generally is used to spin superfine fibre and the superfine fibre felt of PEO, PAN, PBI etc., and in recent years, along with the development of electrostatic spinning technique, as a kind of high polymer with good spinning property, PVA also has been subjected to paying close attention to widely.Present research mainly concentrates on PVA and other material constitutes crosslinked or blended fiber aspect, for example, Korea S Hak Yong Kim professor's seminar has studied static and has spun the PVA fiber in the crosslinked back of the glyoxal of using different proportion thermal property, water imbibition, degree of crystallinity and changes of mechanical properties; And the method that adopts static to spin has spinned PVA and H
3PW
12O
40, material such as cobalt acetate, silicon and zinc oxide blended fiber.These products have specific function because of the material that is mixed is different, for example relevant for utilizing crosslinked PVA to prepare the report of high absorbency material and phase transformation fabric.
Yet, do not see that for research of 100% polyvinyl alcohol (PVA) preparation nanofiber and uses thereof relevant report is arranged, and be very to merit attention as a kind of application of high polymer material after being prepared into the nano-scale fiber product cheap, that physical and mechanical properties is good.On the other hand; as a kind of synthetic high polymer; the biological degradability of PVA is not as natural fabrics such as cotton, silks; from point of view of environment protection; the regeneration of product recovery property is very important; in above-mentioned cross filament or the blended fiber, all contain a certain amount of other composition, caused the difficulty of recycling.
Summary of the invention
The object of the invention provides a kind of polyvinyl alcohol nano fabric, and when possessing nano-meter characteristic, it should possess good renewable recovery.
Another object of the present invention provides the preparation method of this polyvinyl alcohol nano fabric.
For achieving the above object, the technical solution used in the present invention is: a kind of regenerable reclaiming type polyvinyl alcohol nano fabric, it is the bondedfibre fabric that is made of the nanoscale vinal, fibre diameter is the 50-400 nanometer, fibre crystallinity is 20%-50%, and the fracture strength of fabric is 300-1000cN/mm
2, elongation at break 20-50%.
The preparation method of above-mentioned polyvinyl alcohol nano fabric is, earlier the polyvinyl alcohol particulate is dissolved in 70-80 ℃ the water, stirs and makes it dissolving, and obtaining concentration is the water white transparency polyvinyl alcohol water solution of 6%-12%; Adopt method of electrostatic spinning to spin described solution, voltage 6-20 kilovolt, spinning nozzle is 10-20 centimetre to the distance of receiving screen, temperature is 20-30 ℃, obtains the polyvinyl alcohol nano bondedfibre fabric.
In the technique scheme, the time of described polyvinyl alcohol particulate stirring and dissolving is between 1 hour-2 hours.
In the technique scheme, the degree of polymerization of described polyvinyl alcohol particulate is that 2300-2400, alcoholysis degree are 98%-99%.
Polyvinyl alcohol nano fabric of the present invention has excellent fast rapid regeneration recyclability, and its regeneration recovery method is, described polyvinyl alcohol nano fabric is put into 80 ℃ water, stirs 5-10 minute, makes its dissolving, the acquisition polyvinyl alcohol water solution; Adopt method of electrostatic spinning to spin described solution, can regenerated polythene alcohol nano fabrics.
Because the technique scheme utilization, the present invention compared with prior art has following advantage:
1. the present invention has spinned the 100%PVA nanofiber nonwoven fabric, studies show that, this product has the needed mechanical property of actual use, thickness is about 0.3mm, the external force that the sample of length 10mm, width 1mm can bear is 100-200cN, percentage elongation is 20-50%, and the external force that can bear along with this fabric of increase of sample thickness and width increases.Therefore this product has fully as the needed mechanical performance of absorption, protection or cleaning material.
2. the nano fabrics of the present invention's acquisition is because inner fine pore structure makes product have good adsorption, stop and cleaning capacity small materials such as particulate and dust.
Nano level fiber is randomly arranged interlacing and is formed many fine holes in fabric, the distribution of hole, size and shape are along with spinning process condition and fabric thickness and change, therefore by controlling the sample of spinning condition and time acquisition by the different-thickness that fiber constituted that is different interlacing states, they will have different saturating logical abilities, thus to the absorption of particulate, dust, stop also different with cleaning capacity.Under the standard pressure reduction of the 127Pa that general fabrics is used, air can not pass through this product.Under the pressure reduction of 250Pa, the sample of thickness 0.1-0.3mm (s) in the unit interval passes through unit are (m
2) air capacity of sample also has only 300-750L, as seen its interior porosity is low, and pore-size is little, can stop passing through of particulate and dust effectively, and can not make the people feel sulks simultaneously, can be used as protection (as the interlayer of mouth mask) and cleaning supplies (as glasses or lens cleaning cloth).
3. nano fabrics of the present invention is easy to be reproduced recycling, the ecological environment material nd that recycles for iterative regenerable.
The drawing explanation
Accompanying drawing 1 is the electrostatic spinning apparatus schematic diagram that the embodiment of the invention one is adopted.
Wherein: [1], high voltage source; [2], polyvinyl alcohol water solution; [3], glass tube; [4], metal electrode; [5], spray fiber tube; [6], taylor cone; [7], sprayed solution; [8], bundles of nanofibers; [9], receiving screen.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described:
Embodiment one: a kind of preparation of polyvinyl alcohol nano fabric, earlier be with the degree of polymerization 2300 polyvinyl alcohol (PVA) particle dissolution in 80 ℃ water, stir and make it dissolving, obtain concentration after 1 hour and be 6% water white spinning solution; Adopt method of electrostatic spinning to spin described solution, at voltage is 15.6Kv, spinning nozzle to the distance of receiving screen (metal reception net) be spin under the condition of 10cm the diameter of fiber be 125 ± 20nm, degree of crystallinity is 49.96%, 0.3mm the ultimate strength of the sample thick, that 1mm is wide, 10mm is long is that 116cN, percentage elongation are 25%, air penetrability is 302.5L/m
2.s.
Accompanying drawing 1 is depicted as the electrostatic spinning apparatus that present embodiment adopts, wherein the high pressure of high voltage source 1 generation is added between metal electrode 4 and the receiving screen 9, polyvinyl alcohol water solution 2 in the glass tube 3 enters spray fiber tube 5, under the effect of high-pressure electrostatic, be accelerated formation sprayed solution 7 by taylor cone 6, form bundles of nanofibers 8, and random being distributed on the receiving screen 9, required nanofiber nonwoven fabric obtained.
Embodiment two: with the degree of polymerization be 2300 PVA particle dissolution in 80 ℃ water, obtain concentration behind the 1h and be 10% water white spinning solution.At voltage is 8.9Kv, spinning nozzle to the distance of receiving screen be spin under the condition of 15cm the diameter of fiber be 259 ± 42nm, degree of crystallinity is 35.87%, and the ultimate strength of the sample that 0.3mm is thick, 1mm is wide, 10mm is long is that 182cN, percentage elongation are 41%, and air penetrability is 415L/m
2.s.
Claims (5)
1. regenerable reclaiming type polyvinyl alcohol nano fabric, it is characterized in that: it is the bondedfibre fabric that is made of the nanoscale vinal, fibre diameter is the 50-400 nanometer, and fibre crystallinity is 20%-50%, and the fracture strength of fabric is 300-1000cN/mm
2, elongation at break 20-50%.
2. prepare the method for the described polyvinyl alcohol nano fabric of claim 1, it is characterized in that: earlier the polyvinyl alcohol particulate is dissolved in 70-80 ℃ the water, stirs and make it dissolving, obtaining concentration is the water white transparency polyvinyl alcohol water solution of 6%-12%; Adopt method of electrostatic spinning to spin described solution, voltage 6-20 kilovolt, spinning nozzle is 10-20 centimetre to the distance of receiving screen, temperature is 20-30 ℃, obtains the polyvinyl alcohol nano bondedfibre fabric.
3. the preparation method of polyvinyl alcohol nano fabric according to claim 2, it is characterized in that: the time of described polyvinyl alcohol particulate stirring and dissolving is between 1 hour-2 hours.
4. the preparation method of polyvinyl alcohol nano fabric according to claim 2, it is characterized in that: the degree of polymerization of described polyvinyl alcohol particulate is that 2300-2400, alcoholysis degree are 98%-99%.
5. the regeneration recovery method of the described polyvinyl alcohol nano fabric of claim 1 is characterized in that: described polyvinyl alcohol nano fabric is put into 80 ℃ water, stirred 5-10 minute, make its dissolving, obtain polyvinyl alcohol water solution; Adopt method of electrostatic spinning to spin described solution, can regenerated polythene alcohol nano fabrics.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200510038319 CN1276135C (en) | 2005-02-06 | 2005-02-06 | Regenerable reclaiming type polyvinyl alcohol nano fabric and method for making same |
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| CN 200510038319 CN1276135C (en) | 2005-02-06 | 2005-02-06 | Regenerable reclaiming type polyvinyl alcohol nano fabric and method for making same |
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| CN1664187A true CN1664187A (en) | 2005-09-07 |
| CN1276135C CN1276135C (en) | 2006-09-20 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100363542C (en) * | 2006-05-16 | 2008-01-23 | 苏州大学 | Polyvinyl alcohol electrostatic spinning solution |
| CN100448920C (en) * | 2006-11-20 | 2009-01-07 | 吉林大学 | Method for preparing low dielectric constant high polymer nanometer fiber membrane using electric spinning method |
| CN100460575C (en) * | 2006-10-20 | 2009-02-11 | 北京服装学院 | Method for preparing ion exchange fiber by solution electrostatic spinning |
| CN101688335B (en) * | 2007-05-29 | 2011-10-26 | 松下电器产业株式会社 | Nanofiber spinning method and device |
| CN102418161A (en) * | 2011-09-19 | 2012-04-18 | 北京化工大学常州先进材料研究院 | Method for preparing synthetic polymer nano-fiber membrane by freeze-drying |
| CN102966415A (en) * | 2012-12-17 | 2013-03-13 | 苏州大学 | Motor vehicle exhaust purifying device |
| CN103280250A (en) * | 2013-05-20 | 2013-09-04 | 世源科技(嘉兴)医疗电子有限公司 | Disposable protective garment for nuclear industry and processing method after disposable protective garment is used |
| CN103649786A (en) * | 2011-09-02 | 2014-03-19 | 英派尔科技开发有限公司 | Method for producing fibers having optical effect-producing nanostructures |
| CN106637492A (en) * | 2016-09-23 | 2017-05-10 | 江西师范大学 | Electrospinning nylon 56/PVA/boric acid composite nanofiber and preparation method thereof |
| CN111648034A (en) * | 2020-06-03 | 2020-09-11 | 中国人民武装警察部队后勤学院 | Preparation method of nanofiber-based convenient wiping cloth for nuclear pollution equipment |
| CN113174653A (en) * | 2021-05-26 | 2021-07-27 | 南京塞僧传感技术有限公司 | PVA/HCD nano composite fiber, preparation method and application |
| CN113944010A (en) * | 2021-11-23 | 2022-01-18 | 厦门当盛科技有限公司 | Method for preparing regenerated polyethylene non-woven fabric and regenerated polyethylene non-woven fabric |
| CN114045609A (en) * | 2021-11-02 | 2022-02-15 | 南方科技大学 | Temperature-adjustable mask and preparation method thereof |
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2005
- 2005-02-06 CN CN 200510038319 patent/CN1276135C/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100363542C (en) * | 2006-05-16 | 2008-01-23 | 苏州大学 | Polyvinyl alcohol electrostatic spinning solution |
| CN100460575C (en) * | 2006-10-20 | 2009-02-11 | 北京服装学院 | Method for preparing ion exchange fiber by solution electrostatic spinning |
| CN100448920C (en) * | 2006-11-20 | 2009-01-07 | 吉林大学 | Method for preparing low dielectric constant high polymer nanometer fiber membrane using electric spinning method |
| CN101688335B (en) * | 2007-05-29 | 2011-10-26 | 松下电器产业株式会社 | Nanofiber spinning method and device |
| CN103649786A (en) * | 2011-09-02 | 2014-03-19 | 英派尔科技开发有限公司 | Method for producing fibers having optical effect-producing nanostructures |
| US9739934B2 (en) | 2011-09-02 | 2017-08-22 | Empire Technology Development Llc | Method for producing fibers having optical effect-producing nanostructures |
| CN103649786B (en) * | 2011-09-02 | 2016-08-17 | 英派尔科技开发有限公司 | There is the manufacture method of the fiber of the nanostructure producing optical effect |
| CN102418161A (en) * | 2011-09-19 | 2012-04-18 | 北京化工大学常州先进材料研究院 | Method for preparing synthetic polymer nano-fiber membrane by freeze-drying |
| CN102966415A (en) * | 2012-12-17 | 2013-03-13 | 苏州大学 | Motor vehicle exhaust purifying device |
| CN103280250A (en) * | 2013-05-20 | 2013-09-04 | 世源科技(嘉兴)医疗电子有限公司 | Disposable protective garment for nuclear industry and processing method after disposable protective garment is used |
| CN106637492A (en) * | 2016-09-23 | 2017-05-10 | 江西师范大学 | Electrospinning nylon 56/PVA/boric acid composite nanofiber and preparation method thereof |
| CN106637492B (en) * | 2016-09-23 | 2019-04-16 | 江西师范大学 | Electrospinning nylon 56/PVA/ boric acid composite nano fiber and preparation method thereof |
| CN111648034A (en) * | 2020-06-03 | 2020-09-11 | 中国人民武装警察部队后勤学院 | Preparation method of nanofiber-based convenient wiping cloth for nuclear pollution equipment |
| CN113174653A (en) * | 2021-05-26 | 2021-07-27 | 南京塞僧传感技术有限公司 | PVA/HCD nano composite fiber, preparation method and application |
| CN114045609A (en) * | 2021-11-02 | 2022-02-15 | 南方科技大学 | Temperature-adjustable mask and preparation method thereof |
| CN113944010A (en) * | 2021-11-23 | 2022-01-18 | 厦门当盛科技有限公司 | Method for preparing regenerated polyethylene non-woven fabric and regenerated polyethylene non-woven fabric |
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