CN108166294A - A kind of paper products of graphene-containing and preparation method thereof - Google Patents
A kind of paper products of graphene-containing and preparation method thereof Download PDFInfo
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- CN108166294A CN108166294A CN201711412284.5A CN201711412284A CN108166294A CN 108166294 A CN108166294 A CN 108166294A CN 201711412284 A CN201711412284 A CN 201711412284A CN 108166294 A CN108166294 A CN 108166294A
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/02—Pretreatment of the raw materials by chemical or physical means
- D21B1/023—Cleaning wood chips or other raw materials
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/20—Pulping cellulose-containing materials with organic solvents or in solvent environment
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
-
- 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
-
- 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
- D21H17/02—Material of vegetable origin
-
- 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
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Abstract
The present invention relates to a kind of preparation method of the sanitary tissue products of graphene-containing, the technique for disclosing medicinal plant papermaking includes the techniques such as screw extrusion processing, boiling, washing, papermaking and paper products modification.For the present invention using medicinal plant as the raw material for preparing fiber, cooperation uses ultrasonic wave, Ethanol Method, and the paper products pliability of graphene-containing prepared using this law is good, intensity is high, and whole process does not introduce harmful chemicals, it is ensured that the hygienic characteristic of fiber.And the paper product prepared contains health-care efficacy, effective antibacterial, antibacterial；The paper products pliability that is prepared using the method for the present invention is good, intensity is high.Due to adding in graphene dispersing solution in pulping process so that the product of acquisition has preferable anti-microbial property, especially plays the role of effectively inhibiting to kill to staphylococcus aureus, Escherichia coli, hemolytic streptococcus.
Description
Technical field
The invention belongs to pulp and paper technology fields, and in particular, to a kind of paper products of graphene-containing and its preparation side
Method.
Background technology
Graphene is a kind of New Two Dimensional ultrathin nanometer material, because of its unique structure, mechanics and electronic property, in medicine
The bio-nanotechnologies fields such as object delivery, oncotherapy have broad application prospects.Some researches show that, graphene not only can be with
By being cut to bacterial cell membrane, moreover it is possible to which the phospholipid molecule on Induction of bacterial cell membrane is detached from, so as to fulfill graphene pair
The extensive direct extraction of phospholipid molecule on cell membrane.The physical action of this cutting and extraction can cause the cell membrane of bacterium to lose
Integrality is gone and intracellular organic matter outflows, so as to achieve the effect that kill bacterium.Meanwhile graphene has the novel of two-dimentional graphite linings
Nano material, have high-specific surface area and can functionalized surface, have high flexibility, high intensity, highly conductive, high heat conduction, conductor and
The excellent structure such as semiconductor, mechanics and electrology characteristic are the desired activities materials of Development of Novel paper products.
Toilet paper is the indispensable article of daily life, and using drug coat on toilet paper as health toilet paper
People have also done some researchs.There is the toilet paper using medicine dipping technique at present, this method is not only to toilet paper
It is complicated to impregnate postprocessing working procedures, but also there are many deficiencies：First, this application method is more wasteful, because people's use is defended
Raw paper is only to consider using wherein one side and skin contact or by toilet paper for wiping the apparatus such as closestool from convenient for sterilization
Also with wherein one side, and penetrating dispenser will result in waste；Second is that the toilet paper of a large amount of dispensers is also unfavorable for preserving for a long time,
It also results in toilet paper since internal layer drug moisture absorption is gone bad and goes bad.Therefore, how to be saved under the effect of keeping dispenser toilet paper
Cost, the storge quality for improving toilet paper are exactly a technical contradiction.
Invention content
The invention solves the deficiencies in the prior art, provide a kind of preparation method of the sanitary tissue products of graphene-containing.Institute
The method of stating is not only able to solve the problems, such as that pulping yield is low, can effectively promote pulp brightness, and the fiber product of preparation has health
The characteristics of characteristic is good, Kappa number is low；And the paper product prepared contains health-care efficacy, effective antibacterial, antibacterial；Using present invention side
Paper products pliability that method is prepared is good, intensity is high.
Another object of the present invention is to provide a kind of graphene-containing of the preparation method of paper products of graphene-containing preparation
Paper products.
The present invention is achieved by the following technical solutions：
A kind of preparation method of the sanitary tissue products of graphene-containing of the present invention, includes the following steps：
S1. medicinal plant is carried out except Slag treatment, after removing silt and dust therein, it is dry until water content for 20~
30%, it is spare after above-mentioned medicinal plant is carried out screw extrusion processing；
S2. the medicinal plant after extruding step S1 obtained is placed in ultrasonic response kettle, and addition a concentration of 30~
50% ethanol solution, liquor ratio 1:6~8, boiling temperature is 100~120 DEG C, and the time is blowing after 50~60min, is floated
White slurry；
S3. the obtained bleached pulps of step S2 are placed in displacement washing device, a concentration of 50~60% is used under normal temperature and pressure
Ethanol solution carry out 2 sections of displacement washings, cleaning solution ratio be 1:4~6, it is then washed with water totally, obtains medicinal plant fiber；
S4. graphene dispersing solution is added in into the medicinal plant fiber of step S3, after mixing, carries out being filtered under diminished pressure 40
~60min, dry 60~120min, obtains the fiber of graphene-containing at 50~80 DEG C；The medicinal plant and graphene point
The usage ratio of dispersion liquid is 70~75:1~2；
S5. it after adding in filler, internal sizing agent into the fiber of step S4, being beaten, beating degree is 15~20 ° of SR,
Then the sanitary tissue products of graphene-containing are obtained after carrying out top sizing；The medicinal plant is motherwort, arbitrary in selfheal
It is one or two kinds of.
Further, in step S1, the concrete operations condition of the processing of the screw extrusion is 1:1~2:1.
Further, the technological parameter of ultrasonic response kettle described in step S2 is：Ultrasonic response kettle power is 1400
~1500W, frequency are 25~30KHz.
Further, it adds graphene oxide into the solution of the water or alcohol solvent containing dispersant, 2~4h of ultrasound,
Obtain graphene dispersing solution.
Preferably, the Cypres be starch, the Cypres a concentration of 4%~6%, coating weight 0.1
~0.3g/m2。
Preferably, the filler is calcium carbonate, and the dosage of the calcium carbonate is the 2~4% of over dry slurry weight.
Preferably, the internal sizing agent is polyacrylamide, and the dosage of the internal sizing agent is over dry slurry weight
0.4%~0.6%.
The toilet paper of graphene-containing that a kind of preparation method of paper products using above-mentioned graphene-containing obtains.
The present invention directly prepares bleached pulp using medicinal plant as plant material, using ultrasonic wave combination Ethanol Method, simplifies system
The process of slurry not only will not generate any harmful substance, but also its special processing procedure causes to environment during the reaction
Medicinal plant is with the obvious advantage in delignification reaction, and can bring the active ingredient of medicinal plant into play, enhances paper product
It is functional.
Compared with prior art, the preparation method of the paper products of graphene-containing provided by the invention has the advantage that：
The present invention utilizes ultrasonic wave combination Ethanol Method using medicinal plant as plant material, using screw extrusion to medicinal plant
Bleached pulp is directly prepared, simplifies the process of slurrying, in effectively degradation medicinal plant while a variety of lignins, additionally it is possible to remove paper
Chromophoric group in slurry effectively promotes the whiteness of bleached pulp, not only will not generate any nuisance to environment during the reaction
Matter, and its special processing procedure so that medicinal plant is with the obvious advantage in delignification reaction, the fiber product health of preparation
Characteristic is good, whiteness is high, Kappa number is low.
The present invention is handled medicinal plant using screw extrusion method so that follow-up digesting technoloy ethanol solution infiltration is more
Add easily, and paper pulp prepared using ultrasonic wave combination Ethanol Method, promote the decomposition of lignin macromolecule structure and the fracture of chemical bond,
The chemical reaction of follow-up delignification is more advantageous to, can preferably dissolve out lignin in paper pulp, obtains the relatively low slurry of Kappa number, and
Fiber yield is high, plays the role of effectively inhibiting to kill to staphylococcus aureus, Escherichia coli, hemolytic streptococcus.
The method provided by the invention that fiber is prepared using medicinal plant, pulp preparing process is simple, is not only reacting
Any harmful substance will not be generated to environment, easy to operate, the time is short in journey.
The present invention does not introduce harmful chemicals using ethanol pulping, pulping process, it is ensured that the hygienic characteristic of fiber.
Specific embodiment
It is further illustrated the present invention with reference to specific embodiment.Unless stated otherwise, it is used in the embodiment of the present invention
Routinely raw material purchased in market and conventional use of method, used equipment are routinely set for this field for this field for raw material and method
It is standby.
Embodiment 1
The present embodiment provides a kind of preparation methods of the sanitary tissue products of graphene-containing, include the following steps：
S1. medicinal plant is carried out except Slag treatment, it is dry until water content is after removing silt and dust therein
20%, it is spare after above-mentioned medicinal plant is carried out screw extrusion processing；
S2. the medicinal plant after extruding step S1 obtained is placed in ultrasonic response kettle, adds in a concentration of 30%
Ethanol solution, liquor ratio 1:6, boiling temperature is 120 DEG C, and the time is blowing after 50min, obtains bleached pulp；Ultrasonic response kettle
Technological parameter be：Ultrasonic response kettle power is 1500W, frequency 25KHz；
S3. the obtained bleached pulps of step S2 are placed in displacement washing device, a concentration of 50% second is used under normal temperature and pressure
Alcoholic solution carries out 2 sections of displacement washings, and cleaning solution ratio is 1:4, it is then washed with water totally, obtains medicinal plant fiber；
S4. graphene dispersing solution is added in into the medicinal plant fiber of step S3, after mixing, is filtered under diminished pressure
40min, dry 60min, obtains the fiber of graphene-containing at 50 DEG C；The amount ratio of the medicinal plant and graphene dispersing solution
Example is 70:1；
S5. it after adding in filler, internal sizing agent into the fiber of step S4, is beaten, beating degree is 15 ° of SR, then
The sanitary tissue products of graphene-containing are obtained after carrying out top sizing；The medicinal plant is motherwort.
Wherein, filler is calcium carbonate, amount of filler 2%；Internal sizing agent is polyacrylamide, the use of internal sizing agent
Measure 0.4% for over dry slurry weight；Using starch as Cypres, Cypres a concentration of 4%, coating weight is
0.1g/m2。
The preparation method of graphene dispersing solution is：Add graphene oxide into the molten of water containing dispersant or alcohol solvent
In liquid, ultrasonic 2h obtains graphene dispersing solution.
Embodiment 2
The present embodiment provides a kind of preparation method of the paper products of graphene-containing, concrete operation step is as follows：
S1. medicinal plant is carried out except Slag treatment, it is dry until water content is after removing silt and dust therein
30%, it is spare after above-mentioned medicinal plant is carried out screw extrusion processing；The compression ratio of screw extrusion processing is 2:1；
S2. the medicinal plant after extruding step S1 obtained is placed in ultrasonic response kettle, adds in a concentration of 50%
Ethanol solution, liquor ratio 1:8, boiling temperature is 100 DEG C, and the time is blowing after 60min, obtains bleached pulp；Ultrasonic response kettle
Technological parameter be：Ultrasonic response kettle power is 1400W, frequency 30KHz；
S3. the obtained bleached pulps of step S2 are placed in displacement washing device, a concentration of 60% second is used under normal temperature and pressure
Alcoholic solution carries out 2 sections of displacement washings, and cleaning solution ratio is 1:6, it is then washed with water totally, obtains medicinal plant fiber；
S4. graphene dispersing solution is added in into the medicinal plant fiber of step S3, after mixing, is filtered under diminished pressure
60min, dry 60min, obtains the fiber of graphene-containing at 80 DEG C.Wherein, medicinal plant fiber and graphene dispersing solution
Usage ratio is 70:3；
S5. it after adding in filler, internal sizing agent into the fiber of step S4, is beaten, beating degree is 20 ° of SR, then
The paper products of graphene-containing are obtained after carrying out top sizing.The medicinal plant is selfheal.
Wherein, filler is calcium carbonate, amount of filler 4%；Internal sizing agent is polyacrylamide, the use of internal sizing agent
Measure 0.6% for over dry slurry weight；Using starch as Cypres, Cypres a concentration of 6%, coating weight is
0.3g/m2。
The preparation method of graphene dispersing solution is：Add graphene oxide into the molten of water containing dispersant or alcohol solvent
In liquid, ultrasonic 4h obtains graphene dispersing solution.
Embodiment 3
The present embodiment provides a kind of preparation method of the paper products of graphene-containing, concrete operation step is as follows：
S1. medicinal plant is carried out except Slag treatment, it is dry until water content is after removing silt and dust therein
25%, it is spare after above-mentioned medicinal plant is carried out screw extrusion processing；The compression ratio of screw extrusion processing is 1.5:1；
S2. the medicinal plant after extruding step S1 obtained is placed in ultrasonic response kettle, adds in a concentration of 40%
Ethanol solution, liquor ratio 1:7, boiling temperature is 110 DEG C, and the time is blowing after 55min, obtains bleached pulp；Ultrasonic response kettle
Technological parameter be：Ultrasonic response kettle power is 1450W, frequency 30KHz；
S3. the obtained bleached pulps of step S2 are placed in displacement washing device, a concentration of 55% second is used under normal temperature and pressure
Alcoholic solution carries out 2 sections of displacement washings, and cleaning solution ratio is 1:5, it is then washed with water totally, obtains medicinal plant fiber；
S4. graphene dispersing solution is added in into the medicinal plant fiber of step S3, after mixing, is filtered under diminished pressure
50min, dry 80min, obtains the fiber of graphene-containing at 60 DEG C.Wherein, medicinal plant fiber and graphene dispersing solution
Usage ratio is 35：1.
S5. it after adding in filler, internal sizing agent into the fiber of step S4, is beaten, beating degree is 16 ° of SR, then
The paper products of graphene-containing are obtained after carrying out top sizing.The medicinal plant is selfheal.
Wherein, filler is calcium carbonate, amount of filler 3%；Internal sizing agent is polyacrylamide, the use of internal sizing agent
Measure 0.5% for over dry slurry weight；Using starch as Cypres, Cypres a concentration of 5%, coating weight is
0.2g/m2。
The preparation method of graphene dispersing solution is：Add graphene oxide into the molten of water containing dispersant or alcohol solvent
In liquid, ultrasonic 3h obtains graphene dispersing solution.
Comparative example 1
This comparative example provides a kind of preparation method of the paper products of graphene-containing, and concrete operation step is as follows：
S1. medicinal plant is carried out except Slag treatment, it is dry until water content is after removing silt and dust therein
28%, above-mentioned medicinal plant is placed in ultrasonic response kettle, adds in a concentration of 45% ethanol solution, liquor ratio 1:7.5, it steams
It is 105 DEG C to boil temperature, and the time is blowing after 55min, obtains bleached pulp；The technological parameter of ultrasonic response kettle is：Ultrasonic wave is anti-
It is 1400W, frequency 28KHz to answer kettle power；
S2. the obtained bleached pulps of step S1 are placed in displacement washing device, a concentration of 55% second is used under normal temperature and pressure
Alcoholic solution carries out 2 sections of displacement washings, and cleaning solution ratio is 1:4.5, it is then washed with water totally, obtains medicinal plant fiber；
S3. graphene dispersing solution is added in into the medicinal plant fiber of step S2, after mixing, is filtered under diminished pressure
55min, dry 100min, obtains the fiber of graphene-containing at 70 DEG C.Wherein, medicinal plant fiber and graphene dispersing solution
Usage ratio is 80:5；
S4. it after adding in filler, internal sizing agent into the fiber of step S3, is beaten, beating degree is 18 ° of oSR, then
The paper products of graphene-containing are obtained after carrying out top sizing.
Wherein, filler is calcium carbonate, amount of filler 3%；Internal sizing agent is polyacrylamide, the use of internal sizing agent
Measure 0.5% for over dry slurry weight；Using starch as Cypres, Cypres a concentration of 5%, coating weight is
0.2g/m2。
The preparation method of graphene dispersing solution is：Add graphene oxide into the molten of water containing dispersant or alcohol solvent
In liquid, ultrasonic 3.5h obtains graphene dispersing solution.
Whiteness is carried out to the fiber that the preparation method of Examples 1 to 3 and comparative example 1 obtains and Kappa number measures, wherein, card
Primary value is measured according to standard GB/T/T 1546-2004, and whiteness is surveyed according to standard GB/T/T8940.2-1988
It is fixed, and killed to paper products intensity, pliability and to bacteriums such as staphylococcus aureus, Escherichia coli, hemolytic streptococcus
Property is detected.It the results are shown in Table 1.
Table 1
The present invention utilizes ultrasonic wave combination Ethanol Method using medicinal plant as plant material, using screw extrusion to medicinal plant
Bleached pulp directly is prepared, the lignin components being very beneficial in medicinal plant are separated, and generate plant cell wall tissue micro-
Pore structure is more advantageous to the chemical reaction of follow-up delignification, and medicinal plant pulping process is utilized using method provided by the invention
The paper pulp being prepared, residual lignin content is low, and Kappa number is less than 30%, and whiteness is up to 70%.
Of the invention initiative adds in graphene dispersing solution in medicinal plant paper pulp, using the sterilization idiocratic of graphene,
The fiber product of acquisition plays the role of staphylococcus aureus, Escherichia coli, hemolytic streptococcus effectively to inhibit to kill；Together
When, graphene also have high-specific surface area and can functionalization surface, be introduced into medicinal plant fiber and prepare paper pulp, favorably
In the pliability and intensity that promote paper products.
The present invention illustrates the detailed process equipment of the present invention and processing step, people in the art by above-described embodiment
Member is not it should be appreciated that the present invention is limited by above-described embodiment, and the above embodiments and description only describe the present invention
Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, this is to this field
It is it will be apparent that these changes and improvements all fall within the protetion scope of the claimed invention for technical staff.
Claims (5)
1. a kind of preparation method of the sanitary tissue products of graphene-containing, which is characterized in that include the following steps：
S1. medicinal plant is carried out except Slag treatment, after removing silt and dust therein, drying is 20 ~ 30% up to water content,
It is spare after above-mentioned medicinal plant is carried out screw extrusion processing；
S2. the medicinal plant after extruding step S1 obtained is placed in ultrasonic response kettle, adds in a concentration of 30 ~ 50% second
Alcoholic solution, liquor ratio 1:6 ~ 8, boiling temperature is 100 ~ 120 DEG C, and the time is blowing after 50 ~ 60 min, obtains bleached pulp；
S3. the obtained bleached pulps of step S2 are placed in displacement washing device, a concentration of 50 ~ 60% ethyl alcohol is used under normal temperature and pressure
Solution carries out 2 sections of displacement washings, and cleaning solution ratio is 1:4 ~ 6, it is then washed with water totally, obtains medicinal plant fiber；
S4. graphene dispersing solution is added in into the medicinal plant fiber of step S3, after mixing, carries out being filtered under diminished pressure 40 ~ 60
Min, dry 60 ~ 120 min, obtain the fiber of graphene-containing at 50 ~ 80 DEG C；The medicinal plant and graphene dispersing solution
Usage ratio is 70 ~ 75:1~2；
S5. it after adding in filler, internal sizing agent into the fiber of step S4, is beaten, beating degree is 15 ~ 20oSR, Ran Houjin
The sanitary tissue products of graphene-containing are obtained after row top sizing；The medicinal plant is motherwort, any one in selfheal or
Two kinds.
2. the preparation method of the sanitary tissue products of graphene-containing according to claim 1, which is characterized in that in step S1, institute
The concrete operations condition for stating the processing of screw extrusion is 1:1~2:1.
3. the preparation method of the sanitary tissue products of graphene-containing according to claim 1, which is characterized in that described in step S2
The technological parameter of ultrasonic response kettle is：Ultrasonic response kettle power is 1400 ~ 1500 W, and frequency is 25 ~ 30 KHz.
4. the preparation method of the sanitary tissue products of graphene-containing according to claim 1, which is characterized in that by graphene oxide
It is added in the solution of the water containing dispersant or alcohol solvent, 2 ~ 4 h of ultrasound obtain graphene dispersing solution.
5. the toilet paper prepared according to the preparation method of the sanitary tissue products of any one of claim 1 ~ 4 graphene-containing.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965388A (en) * | 2018-09-29 | 2020-04-07 | 宁波方太厨具有限公司 | Preparation method of sterilization deodorant and paper |
| CN112086650A (en) * | 2019-06-12 | 2020-12-15 | 清华大学 | Fuel cell, expanded graphite plate and preparation method of expanded graphite plate |
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