CN109750417A - Electrospinning treatment process in situ for paper relics protection - Google Patents
Electrospinning treatment process in situ for paper relics protection Download PDFInfo
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- CN109750417A CN109750417A CN201910097769.2A CN201910097769A CN109750417A CN 109750417 A CN109750417 A CN 109750417A CN 201910097769 A CN201910097769 A CN 201910097769A CN 109750417 A CN109750417 A CN 109750417A
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- spinning
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Abstract
The invention discloses a kind of electrospinning treatment process in situ for paper relics protection, which comprises the following steps: (1) configures spinning solution: hydrophobic polymer material being dissolved in high volatile solvent and obtains spinning solution；(2) electrospinning protective film: spinning solution is added in the liquid storage mechanism of electrostatic spinning apparatus; adjust spinning parameter; wherein spinning humidity is set as 50-60%, opens electrostatic spinning apparatus, electrospinning, which deposits, in body surface original position to be protected to form electro spinning nano fiber protective film.This method is easy to operate; quickly, directly, uniformly paper relics can be handled; it can guarantee word read clarity in the protective film transparency height that paper surface is formed, and hydrophobicity, paper strength and the anti-uv-ray of paper relics can be effectively improved.
Description
Technical field
The present invention relates to Techniques of Relics Protection fields, and in particular to the electrospinning in situ for paper relics protection handles work
Skill.
Background technique
Papermaking is one of four inventions of ancient Chinese, and the invention of paper promotes the progress of China or even world civilization.
Paper relics carry important cultural and historical data and record, therefore it is not only the important component of cultural heritage, more
It is the important witness of social history.However due to various reasons, the constantly aging of the paper relics of many preciousnesses, damage,
It disappears, in addition to the chemistry of paper relics itself, the deterioration and variation of the properties such as physics are outer, and the influence of external factor, such as dust are micro-
Biological pollution, oxidation, water logging, it is seen that light and ultraviolet radiation etc. are also the main reason for causing its damage.
Common paper relics safeguard measure includes surface dry-cleaning, depickling, reduction, support mounting, silk net reinforcing, surface closure
Deng.In terms of depickling reinforcing, Chinese invention patent CN201610222180.7 discloses the processing of a kind of water and polyethyleneimine
Liquid can play the effect that fixation antibacterial is reinforced in depickling.Chinese invention patent CN107313295A discloses one kind with pH standard
Buffer solution (pH=9.01~9.33) is used as deacidification agent, acidification and brittle paper fibre of the water-soluble cellulose as strengthening agent
Guard method.In terms of the closure of surface, Chinese invention patent CN105713155A disclose a kind of modified cellulose (MCC) and
Modified TiO2 is core, and styrene-acrylic copolymer is the closure polymer emulsion of shell, has excellent Water-proof and oil-proof, resistance to
Water, acid and alkali-resistance, antibacterial, the performances such as reversible.Chinese invention patent CN108440736A discloses a kind of transparent polyurethane reinforcing liquid,
It can be improved paper strength, ageing-resistant performance transparency with higher again.Chinese invention patent CN105524222A is disclosed
A kind of preparation method of uvioresistant polymer material, can be improved the uvioresistant performance of paper relics.However above-mentioned guard method
The various polymer mentioned are solution or lotion, and solvent is water or organic solvent, need to add these in use
Solid-liquid, protective liquid etc. are applied on paper relics, increase the risk of paper relics breakage.
Summary of the invention
In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to overcome prior art defect, reduce papery text
Destruction risk of object during implementing safeguard measure provides the electrospinning treatment process in situ for paper relics protection, the party
Method is easy to operate, can quickly, directly, uniformly handle paper relics, transparent in the protective film that paper surface is formed
The high certifiable word read clarity of degree, and hydrophobicity, paper strength and the uvioresistant energy of paper relics can be effectively improved
Power.
In order to achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of electrospinning treatment process in situ for paper relics protection, comprising the following steps:
(1) it configures spinning solution: hydrophobic polymer material being dissolved in high volatile solvent and obtains spinning solution；
(2) electrospinning protective film: spinning solution being added in the liquid storage mechanism of electrostatic spinning apparatus, adjusts spinning parameter, wherein
Spinning humidity is set as 50-60%, opens electrostatic spinning apparatus, electrospinning deposits to form electrospun nanofiber in body surface original position to be protected
Fiber protective film.
Preferably, step (2) controls the spinning time for electro spinning nano fiber protective film thickness control in 200-800nm.
Preferably, hydrophobic polymer material described in step (1) is thermoplastic polyurethane elastomer rubber or Buddhist nun
Imperial is one or more.
Preferably, the content of hydrophobic polymer material is 10wt%- in spinning solution described in step (1)
35wt%.
Preferably, high volatile solvent described in step (1) be n,N-Dimethylformamide or formic acid one kind or
It is a variety of.
Preferably, spinning parameter described in step (2) are as follows: 10-20 mul/min of the fltting speed of spinning solution is spun
Filament voltage 15-20kV, spinning distance 20-30cm.
Preferably, electrostatic spinning apparatus described in step (2) includes air-flow auxiliary body, the air-flow auxiliary machine
The puff prot of structure is set at spinning nozzle, for providing the secondary air along electrospinning fibre injection direction.
Preferably, the secondary air jet velocity is 8-15 liters/min.
Compared with prior art, the advantages and positive effects of the present invention are: providing the original for paper relics protection
Position electrospinning treatment process, this method is easy to operate, can quickly, directly, uniformly handle paper relics, in paper table
The protective film transparency height that face is formed can guarantee word read clarity, and can effectively improve the hydrophobicity of paper relics, paper
Intensity and anti-uv-ray.The process can reduce destruction risk of paper relics during implementing safeguard measure.
Detailed description of the invention
Fig. 1: the structural schematic diagram of electrostatic spinning apparatus used in the embodiment of the present invention；
Fig. 2: the SEM figure of paper relics after the electrospinning processing in situ of the embodiment of the present invention 1；
Fig. 3: the water contact angle test chart of paper relics after the electrospinning processing in situ of the embodiment of the present invention 1；
Fig. 4: the effect picture of rice paper calligraphy after the electrospinning processing in situ of the embodiment of the present invention 1；
Fig. 5: the paper relics extension test figure of the embodiment of the present invention 1；
In figure: 1- syringe pump, 2- high voltage power supply, 3- air pump, 4- syringe, 5- handle, 6- spray head, the coaxial syringe needle of 7-, 8-
Perfusion tube, 9- positive wire, 10- cathode conductor, 11- tracheae, 12- metal substrate, 13- paper relics.
Specific embodiment
In the following, the present invention is specifically described by illustrative embodiment.It should be appreciated, however, that not into one
In the case where step narration, element, structure and features in an embodiment can also be advantageously incorporated into other embodiments
In.
Embodiment:
A kind of electrospinning treatment process in situ for paper relics protection, comprising the following steps:
(1) it configures spinning solution: hydrophobic polymer material being dissolved in high volatile solvent and obtains spinning solution；
(2) electrospinning protective film: spinning solution being added in the liquid storage mechanism of electrostatic spinning apparatus, adjusts spinning parameter, wherein
Spinning humidity is set as 50-60%, opens electrostatic spinning apparatus, electrospinning deposits to form electrospun nanofiber in body surface original position to be protected
Fiber protective film.
The lower direct spraying of transparency of conventional static spinning membrane will affect text clarity in paper relics surface, this
The treatment process of invention obtains the high hydrophobic material of transparency by the regulation of the regulation especially spinning humidity to spinning parameter
Expect electro spinning nanometer fiber membrane as historical relic's protection film, this method is easy to operate, can quickly, it is direct, uniformly to paper relics
It is handled, can guarantee word read clarity in the protective film transparency height that paper surface is formed, and papery can be effectively improved
The hydrophobicity of historical relic, paper strength, which uses high volatile solvent as spinning solution solvent, in electro-spinning process,
Solvent is evaporated completely entirely substantially, is avoided in conventional paper cultural relics protection method, destruction of the solvent contained by treatment fluid to paper document
Risk is protected more safe and effective for paper relics.
Specifically, step (2) controls the spinning time for electro spinning nano fiber protective film thickness control in 200-800nm.It is quiet
Electrical spinning method can control the thickness of electrospun fiber membrane, treatment process of the invention, by electrospinning by the control methods of spinning time
Nanofiber protective film thickness control can preferably guarantee the transparency of protective film in 200-800nm, it is ensured that text clarity.
Specifically, hydrophobic polymer material described in step (1) be thermoplastic polyurethane elastomer rubber (TPU) or
Nylon (PA) it is one or more.The content of hydrophobic polymer material is 10wt%-35wt% in the spinning solution.It is described
High volatile solvent be the one or more of n,N-Dimethylformamide (DMF) or formic acid.Thermoplastic polyurethane elastomer rubber
Glue and nylon have anti-ultraviolet property, can play anti-ultraviolet function using above-mentioned material as protective film made of raw material,
Preferably protection paper relics.
Specifically, spinning parameter described in step (2) are as follows: 10-20 mul/min of the fltting speed of spinning solution, spinning
Voltage 15-20kV, spinning distance 20-30cm.The electrostatic spinning apparatus includes air-flow auxiliary body, the air-flow auxiliary
The puff prot of mechanism is set at spinning nozzle, for providing the secondary air along electrospinning fibre injection direction.The auxiliary gas
Flowing jet velocity is 8-15 liters/min.On the one hand electrospinning fibre accurate deposition, another party can be assisted using air-flow auxiliary body
Face can promote solvent to volatilize, and be further reduced destruction of the solvent to paper relics.
The structure for the electrostatic spinning apparatus that following embodiment uses is as shown in Figure 1, include high voltage power supply 2, for spraying electrospinning
The spray head 6 (spray head 6 be metal needle) of fiber, handle 5 made of the insulating materials below spray head, supplies the storage of spinning solution
Liquid mechanism, for spraying the air-flow auxiliary body of secondary air, as the metal substrate 12 of collector, the anode of high voltage power supply 2
It is electrically connected spray head 6 by positive wire 9, cathode is electrically connected metal substrate 12 by cathode conductor 10, and paper relics 13 are placed in gold
Belong on substrate 12, spray head 6 is placed in right above paper relics 13 by hand-holdable handle 5, and the liquid storage mechanism includes equipped with injection
The liquid outlet of the syringe pump 1 of device 4, syringe 4 is connected by perfusion tube 8 with spray head 6, and air-flow auxiliary body includes air pump 3, air pump
3 are set to the coaxial syringe needle 7 outside spray head 6 by 11 connector sleeve of tracheae.
Embodiment 1
A kind of electrospinning treatment process in situ for paper relics protection, comprising the following steps:
(1) it configures spinning solution: it is molten that thermoplastic polyurethane elastomer rubber TPU (German BASF, 1190A) being dissolved in DMF
Spinning solution is obtained in agent, the content of TPU is 30wt% in the spinning solution:
(2) electrospinning protective film: spinning solution is added in the syringe 4 of electrostatic spinning apparatus, paper relics 13 is placed on
In metal substrate 12, spinning parameter is adjusted, 15 mul/min of spinning solution fltting speed of syringe pump 1 are set, high voltage power supply 2
Spinning voltage 20kV, 12 liters/min of air velocity of setting air pump 3；Handle 5 is held, control spinning distance is 20cm；Spinning is wet
Degree 55%, open power supply, toward 13 surface of paper relics on original position electrospinning deposit the electro spinning nano fiber to form one layer of homogeneous transparent
Protective film, protective film with a thickness of 500nm, gained protective film pattern is as shown in the SEM photograph of Fig. 2；The protective film enables to
The rice paper that script water contact angle is 0 is increased to 145 °, as shown in Figure 3；And protective film transparency is good, can clearly appear papery text
The text of object 13 does not influence the appreciation of paper relics 13 (shown in Fig. 4)；Meanwhile the paper relics of the treatment process before and after the processing
Stress extension test result is as shown in figure 5, test result proof can be with paper relics 13 by the resulting protective film of electrospinning in situ
It securely pastes and can effectively improve paper strength.
Embodiment 2
A kind of electrospinning treatment process in situ for paper relics protection, comprising the following steps:
(1) it configures spinning solution: nylon PA (Switzerland EMS TR-90) being dissolved in formic acid solvent and obtains spinning solution, the spinning
The content of PA is 15wt% in silk liquid；
(2) electrospinning protective film: spinning solution is added in the syringe 4 of electrostatic spinning apparatus, paper relics 13 is placed on
In metal substrate 12, spinning parameter is adjusted, 12 mul/min of spinning solution fltting speed of syringe pump 1 are set, high voltage power supply 2
Spinning voltage 22kV, 15 liters/min of air velocity of setting air pump 3；Handle 5 is held, control spinning distance is 25cm；Spinning is wet
Degree 60%, open power supply, toward 13 surface of paper relics on original position electrospinning deposit the electro spinning nano fiber to form one layer of homogeneous transparent
Protective film, protective film with a thickness of 800nm.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
It imitates embodiment and is applied to other fields, but without departing from the technical solutions of the present invention, according to the technical essence of the invention
Any simple modification, equivalent variations and remodeling to the above embodiments, still fall within the protection scope of technical solution of the present invention.
Claims (8)
1. a kind of electrospinning treatment process in situ for paper relics protection, which comprises the following steps:
(1) it configures spinning solution: hydrophobic polymer material being dissolved in high volatile solvent and obtains spinning solution；
(2) electrospinning protective film: spinning solution being added in the liquid storage mechanism of electrostatic spinning apparatus, adjusts spinning parameter, wherein spinning
Humidity is set as 50-60%, opens electrostatic spinning apparatus, electrospinning deposits to form electro spinning nano fiber in body surface original position to be protected
Protective film.
2. the electrospinning treatment process in situ according to claim 1 for paper relics protection, which is characterized in that step
(2) the spinning time is controlled by electro spinning nano fiber protective film thickness control in 200-800nm.
3. the electrospinning treatment process in situ according to claim 1 for paper relics protection, which is characterized in that step
(1) hydrophobic polymer material described in is the one or more of thermoplastic polyurethane elastomer rubber or nylon.
4. the electrospinning treatment process in situ according to claim 3 for paper relics protection, which is characterized in that step
(1) content of hydrophobic polymer material is 10wt%-35wt% in the spinning solution described in.
5. the electrospinning treatment process in situ according to claim 3 for paper relics protection, which is characterized in that step
(1) high volatile solvent described in is the one or more of n,N-Dimethylformamide or formic acid.
6. the electrospinning treatment process in situ according to claim 1 for paper relics protection, which is characterized in that step
(2) spinning parameter described in are as follows: 10-20 mul/min of the fltting speed of spinning solution, spinning voltage 15-20kV, spinning distance
20-30cm。
7. the electrospinning treatment process in situ according to claim 1 for paper relics protection, which is characterized in that step
(2) electrostatic spinning apparatus described in includes air-flow auxiliary body, and the puff prot of the air-flow auxiliary body is sprayed set on spinning
At head, for providing the secondary air along electrospinning fibre injection direction.
8. the electrospinning treatment process in situ according to claim 7 for paper relics protection, which is characterized in that described
Secondary air jet velocity is 8-15 liters/min.
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| CN201910097769.2A CN109750417A (en) | 2019-01-31 | 2019-01-31 | Electrospinning treatment process in situ for paper relics protection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111424375A (en) * | 2020-03-11 | 2020-07-17 | 复旦大学 | Alkaline oxide/polymer composite film for paper protection and preparation method thereof |
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