CN115595822A - Preparation method of conductive filter paper with super-hydrophobic property - Google Patents
Preparation method of conductive filter paper with super-hydrophobic property Download PDFInfo
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- CN115595822A CN115595822A CN202211033476.6A CN202211033476A CN115595822A CN 115595822 A CN115595822 A CN 115595822A CN 202211033476 A CN202211033476 A CN 202211033476A CN 115595822 A CN115595822 A CN 115595822A
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/08—Filter paper
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/13—Silicon-containing compounds
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/14—Carboxylic acids; Derivatives thereof
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/59—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/64—Alkaline compounds
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/66—Salts, e.g. alums
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/16—Sizing or water-repelling agents
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/70—Multistep processes; Apparatus for adding one or several substances in portions or in various ways to the paper, not covered by another single group of this main group
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/04—Physical treatment, e.g. heating, irradiating
- D21H25/06—Physical treatment, e.g. heating, irradiating of impregnated or coated paper
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Abstract
The invention discloses a preparation method of conductive filter paper with super-hydrophobic property, which is characterized by comprising the following steps: s1, uniformly coating the graphene slurry on filter paper, and placing the filter paper in a 120 ℃ oven for 2-3 hours to form a conducting layer. S2, soaking the carbon paper obtained in the step S1 in MnSO 4 The solution is put for 3 to 8min; s3, taking out the filter paper obtained in the S2, removing residual liquid on the surface of the filter paper, and then putting the filter paper into a NaOH solution to soak for 2-10S; s4, taking out the filter paper obtained in the step S3, removing residual liquid on the surface of the filter paper, and then putting the filter paper into a low-surface-energy agent solution to soak for 50-120S; and S5, taking out the filter paper obtained in the S4, and drying until the surface of the filter paper is attached with manganese dioxide to form a hydrophobic layer. The conductive filter paper prepared by the invention has the properties of lightness, thinness, foldability and the like, meets the market demand, has simple and convenient preparation process, low cost, small influence on the environment, mild reaction condition and low requirement on reaction equipment, and can be produced in a large scale.
Description
Technical Field
The invention relates to a preparation process of super-hydrophobic flexible conductive filter paper and application of the filter paper in electronic devices, in particular to preparation of a waterproof wearable flexible device.
Background
Flexible fabrics that combine superhydrophobicity with electrical conductivity are a strong demand for emerging application areas such as wearable electronic sensors, electronic skins, and corrosion resistant circuits. However, integration to achieve superhydrophilicity, conductivity, and adaptability to various harsh environments remains limited.
Wearable devices that combine advanced electronic functions with flexible substrates have exploded and will bring revolutionary changes to human life and industrial production modalities, such as wearable rechargeable batteries and supercapacitors, health monitoring systems, electronic bracelets, flexible displays, sensors, and the like. In actual use, these wearable devices must frequently bend and deform. Obviously, flexibility and conductivity will necessarily be the necessary requirements for wearable devices. Flexible organic semiconductors appear to be ideal materials for the preparation of wearable devices. The paper-based material has excellent performances of biodegradability, reproducibility, ultralight weight, foldability, economy and the like, and thus the paper-based material is one of the first materials for preparing the wearable device. Therefore, many works have been done to prepare devices by using organic semiconductor materials with excellent performance such as polyaniline and polythiophene, but they are not suitable for large-scale preparation of wearable devices due to their high price.
Aiming at the defects of the prior art, the invention relates to a preparation process of a flexible conductive filter paper with super-hydrophobicity and application thereof in an electronic device, in particular to preparation of a waterproof wearable flexible device.
Disclosure of Invention
In order to achieve the above object, the present invention provides a method for preparing a conductive filter paper having superhydrophobic properties, the method comprising the steps of:
s1, uniformly coating the graphene slurry on filter paper, and completely drying.
S2, soaking the filter paper obtained in the step 1 in MnSO 4 The solution is kept for 3-8 min;
s3, taking out the filter paper obtained in the S2, removing residual liquid on the surface of the filter paper, and then putting the filter paper into a NaOH solution to soak for 2-10S;
s4, taking out the filter paper obtained in the step S3, removing residual liquid on the surface of the filter paper, and soaking the filter paper in a low-surface-energy agent solution for 50-120S;
and S5, taking out the filter paper obtained in the S4, and drying until the surface of the filter paper is simultaneously attached with manganese dioxide.
Further, the flexible super-hydrophobic conductive filter paper is applied to the field of electronic components;
further, the superhydrophobic conductive filter paper was placed in an electrical circuit under a direct current of 12V and the conductivity and contact angle changes were recorded.
Compared with the prior art, the invention has the following advantages:
the preparation method is simple and convenient in process and low in cost, and the prepared super-hydrophobic conductive filter paper is good in flexibility and conductivity and strong in waterproof capability, and is suitable for the requirements of electronic devices in various shapes.
Drawings
Figure 1 bit example 1: the surface microstructure of the super-hydrophobic conductive filter paper;
FIG. 2 shows example 2: the conductivity and contact angle of the sample in the circuit changes.
Detailed Description
The description is to be regarded as illustrative and explanatory only and should not be taken as limiting the scope of the invention in any way. Furthermore, those skilled in the art can combine features from the embodiments of this document and from different embodiments accordingly based on the description of this document.
In each example, mnSO 4 The preparation method of the solution comprises the following steps: taking MnSO 4 And deionized water to MnSO 4 Adding deionized water, stirring and dissolving by using a glass rod until no particles exist, and pouring all the residual solution to obtain the water-based paint;
the preparation method of the NaOH solution comprises the following steps: taking NaOH and deionized water, pouring the deionized water into the NaOH for mixing for multiple times, and cooling at room temperature to obtain the product;
the preparation method of the stearic acid solution comprises the following steps: mixing stearic acid and anhydrous ethanol, performing ultrasonic treatment for 30min, and stirring in a magnetic stirrer for 30 min.
Example 1: preparation of conductive filter paper with super-hydrophobic property
The preparation process comprises the following steps: uniformly coating the graphene slurry on filter paper, completely drying, and sequentially soaking in MnSO 4 Soaking in the solution for 5min; taking out, absorbing and removing the surface residual liquid, then immersing in NaOH solution for 2s, taking out, absorbing and removing the surface residual liquid, then immersing in stearic acid solution for 1min, taking out and drying. The conductive filter paper with super-hydrophobic property can be prepared
Example 2: performance detection
1. Surface microstructure
2. Hydrophobic conductivity stability test
The test panels were placed in the circuit and the conductivity and contact angle of the test panels were measured at intervals and the results are shown in table 1, from which it can be seen that: the contact angle and the conductivity of the sample tend to a fixed value, and the filter paper prepared by the experimental group has good super-hydrophobic property and conductivity.
TABLE 1 sample conductivity and contact angle changes in an electrical circuit
| T(min) | 0 | 5 | 10 | 15 | 20 |
| Electrical conductivity (S) | 0.00523 | 0.00523 | 0.0046 | 0.00489 | 0.00523 |
| Contact angle (°) | 158.48 | 159.58 | 157.89 | 159.9 | 160.01 |
| T(min) | 25 | 30 | 35 | 40 | 45 |
| Conductivity (S) | 0.00471 | 0.00523 | 0.00523 | 0.00489 | 0.00489 |
| Contact angle (°) | 158.89 | 158.78 | 159.87 | 158.76 | 159.89 |
Claims (8)
1. A preparation method of conductive filter paper with super-hydrophobic performance is characterized by comprising the following steps:
s1, uniformly coating the graphene slurry on filter paper, and completely drying.
S2, soaking the filter paper obtained in the step 1 in MnSO 4 The solution is put for 3 to 8min;
s3, taking out the filter paper obtained in the S2, removing residual liquid on the surface of the filter paper, and then putting the filter paper into a NaOH solution to soak for 2-10S;
s4, taking out the filter paper obtained in the step S3, removing residual liquid on the surface of the filter paper, and soaking the filter paper in a low-surface-energy agent solution for 50-120S;
and S5, taking out the filter paper obtained in the S4, and drying until manganese dioxide is attached to the surface of the filter paper.
2. The method for preparing the conductive filter paper with the super-hydrophobic property as claimed in claim 1, wherein in the step S1, the drying process is as follows: drying for 24-36 h at normal temperature or 6-9 h at 100-130 ℃.
3. The method for preparing the conductive filter paper with the super-hydrophobic property as claimed in claim 1, wherein the step SIn 2, mnSO 4 The concentration of the solution is 8-15 wt%.
4. The method for preparing the conductive filter paper with the superhydrophobic property of claim 1, wherein the concentration of the NaOH solution in the step S3 is 1-8 wt%.
5. The method for preparing the conductive filter paper with the superhydrophobic property of the step S4, wherein the low surface energy agent is any one of stearic acid (STA), polydimethylsiloxane (PDMS), perfluorooctyltriethoxysilane (POTS), fluorodecyl polyhedral oligomeric silsesquioxane (F-POSS), eicosane, octaisobutyl polyhedral oligomeric silsesquioxane (IB-POSS) and fluorooctyl polyhedral oligomeric silsesquioxane (FOO-POSS).
6. The method for preparing the conductive filter paper with the superhydrophobic property of claim 1, wherein the concentration of the low surface energy agent is 8-15 wt% in step S4.
7. The method for preparing the conductive filter paper with the super-hydrophobic property as claimed in claim 1, wherein the drying process in the step S5 is as follows: and naturally drying for 9-12 h.
8. An electrically conductive filter paper having super-hydrophobic properties, characterized by being produced by the production method according to any one of claims 1 to 7.
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| CN202211033476.6A CN115595822A (en) | 2022-08-26 | 2022-08-26 | Preparation method of conductive filter paper with super-hydrophobic property |
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| CN202211033476.6A CN115595822A (en) | 2022-08-26 | 2022-08-26 | Preparation method of conductive filter paper with super-hydrophobic property |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735047A (en) * | 2016-02-01 | 2016-07-06 | 东南大学 | Preparation method of conductive and super-hydrophobic functional graphene paper |
| CN106925137A (en) * | 2017-02-27 | 2017-07-07 | 四川大学 | Super-hydrophobic oleophylic cellulose profit absorption/seperation film of scratch-resistant and preparation method thereof |
| US20180242452A1 (en) * | 2015-08-10 | 2018-08-23 | The University Of Manchester | Electrically conductive materials comprising graphene |
| US10876210B1 (en) * | 2016-05-05 | 2020-12-29 | Iowa State University Research Foundation, Inc. | Tunable nano-structured inkjet printed graphene via UV pulsed-laser irradiation for electrochemical sensing |
| CN112144273A (en) * | 2020-09-30 | 2020-12-29 | 福州大学 | Preparation method of multifunctional fabric surface with super-hydrophobic and conductive functions |
| CN113882192A (en) * | 2021-10-25 | 2022-01-04 | 南昌航空大学 | Anti-biological adhesive filter paper with photocatalytic performance and preparation method thereof |
-
2022
- 2022-08-26 CN CN202211033476.6A patent/CN115595822A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180242452A1 (en) * | 2015-08-10 | 2018-08-23 | The University Of Manchester | Electrically conductive materials comprising graphene |
| CN105735047A (en) * | 2016-02-01 | 2016-07-06 | 东南大学 | Preparation method of conductive and super-hydrophobic functional graphene paper |
| US10876210B1 (en) * | 2016-05-05 | 2020-12-29 | Iowa State University Research Foundation, Inc. | Tunable nano-structured inkjet printed graphene via UV pulsed-laser irradiation for electrochemical sensing |
| CN106925137A (en) * | 2017-02-27 | 2017-07-07 | 四川大学 | Super-hydrophobic oleophylic cellulose profit absorption/seperation film of scratch-resistant and preparation method thereof |
| CN112144273A (en) * | 2020-09-30 | 2020-12-29 | 福州大学 | Preparation method of multifunctional fabric surface with super-hydrophobic and conductive functions |
| CN113882192A (en) * | 2021-10-25 | 2022-01-04 | 南昌航空大学 | Anti-biological adhesive filter paper with photocatalytic performance and preparation method thereof |
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