CN110420739B - Method for preparing flexible screen transparent substrate film by utilizing lobster shells - Google Patents
Method for preparing flexible screen transparent substrate film by utilizing lobster shells Download PDFInfo
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- CN110420739B CN110420739B CN201910621198.8A CN201910621198A CN110420739B CN 110420739 B CN110420739 B CN 110420739B CN 201910621198 A CN201910621198 A CN 201910621198A CN 110420739 B CN110420739 B CN 110420739B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/22—Crushing mills with screw-shaped crushing means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
- B02C21/02—Transportable disintegrating plant
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/02—Crushing or disintegrating by disc mills with coaxial discs
- B02C7/04—Crushing or disintegrating by disc mills with coaxial discs with concentric circles of intermeshing teeth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/11—Details
- B02C7/12—Shape or construction of discs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/11—Details
- B02C7/14—Adjusting, applying pressure to, or controlling distance between, discs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/11—Details
- B02C7/16—Driving mechanisms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/28—Treatment by wave energy or particle radiation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2399/00—Characterised by the use of natural macromolecular compounds or of derivatives thereof not provided for in groups C08J2301/00 - C08J2307/00 or C08J2389/00 - C08J2397/00
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- Chemical & Material Sciences (AREA)
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Disintegrating Or Milling (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a method for preparing a flexible screen transparent substrate film by utilizing lobster shells, and relates to the technical field of preparation methods of flexible screen transparent substrate films; the method comprises the following steps: step a, drying the lobster shells; b, crushing lobster shells; step c, boiling and refluxing the mixture for 2d by using KOH; d, soaking and stirring for 2d by hydrochloric acid; step e, refluxing for 5 hours by using absolute ethyl alcohol; step f, washing the mixture to be neutral by using deionized water; step g, according to the mass of the lobster shell particles: volume of aminotrimethylene sodium phosphate solution =1 g: stirring at the ratio of 20ml for 2 d; step h, filtering to obtain filter residue, and washing the filter residue to be neutral by using deionized water; step i, putting filter residues into an acetic acid solution with the PH value of 2-3 for gamma ray irradiation, and centrifuging for 30 min; step j, taking the centrifuged supernatant, diluting the supernatant with deionized water, and evaporating water to dryness to finally obtain a flexible screen transparent substrate film; the method has low cost.
Description
Technical Field
The invention belongs to the technical field of preparation methods of flexible screen transparent substrate films, and particularly relates to a method for preparing a flexible screen transparent substrate film by utilizing lobster shells.
Background
Compared with the traditional liquid crystal display screen, the organic flexible screen has many advantages, such as lower energy consumption, lighter and thinner volume, longer endurance time, longer service life and the like. As a new technology, the organic flexible screen technology is expected to be applied to high-tech products such as mobile phones, liquid crystal televisions, computers, automobiles, wearable intelligent equipment and the like on a large scale within 3 to 5 years in the future. Organic transparent substrates are important components of organic flexible screens. The traditional preparation raw material is nano-grade cellulose material. But the nano-sized cellulose materials are relatively expensive.
Disclosure of Invention
The invention aims to overcome the defect of high production cost in the prior art, and provides a method for preparing a flexible screen transparent substrate film by utilizing lobster shells, which is low in cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for preparing a flexible screen transparent substrate film by utilizing lobster shells comprises the following steps: step a, drying the lobster shells; b, crushing the lobster shells into 10-micron lobster shell particles; step c, boiling and refluxing the mixture for 2d by using KOH; d, soaking and stirring for 2d by hydrochloric acid; step e, refluxing for 5 hours by using absolute ethyl alcohol; step f, washing the mixture to be neutral by using deionized water; step g, according to the mass of the lobster shell particles: volume of aminotrimethylene sodium phosphate solution =1 g: stirring for 2 days at the ratio of 20ml, wherein the pH value of the aminotrimethylene sodium phosphate solution is 10-13; step h, filtering to obtain filter residue, and washing the filter residue to be neutral by using deionized water; step i, putting filter residues into an acetic acid solution with the PH value of 2-3 for gamma ray irradiation, and centrifuging for 30min at the rotating speed of over 12000 rpm; and j, taking the centrifuged supernatant, diluting the supernatant by 10 times by using deionized water, and evaporating the water by using an oil bath to dryness to finally obtain the flexible screen transparent substrate film. The invention has low cost, and the adopted substances are easily obtained from the market, and the preparation is convenient.
Preferably, in the step b, the lobster shells are crushed by an ultramicro grinding machine, the ultramicro grinding machine comprises a barrel body, a transmission wheel is arranged in the barrel body, a conical groove for blanking is arranged on the upper side of the transmission wheel, a blanking port is arranged at the lowest point of the conical groove of the transmission wheel, a gear is arranged on the outer edge surface of the transmission wheel, a groove is arranged at the position corresponding to the gear of the barrel body, the gear is positioned in the groove, a driving wheel meshed with the gear is arranged in the groove, the driving wheel is connected with a motor, the motor is fixedly connected on the barrel body, an upper grinding wheel and a lower grinding wheel are arranged below the transmission wheel in the barrel body, the lower grinding wheel is positioned between the upper grinding wheel and the transmission wheel, a feeding hole is arranged at the position corresponding to the blanking port of the upper grinding wheel, an adjusting screw rod is arranged on the transmission wheel in, adjusting nut supports and leans on the drive wheel upside, be equipped with the conical head with the conical groove adaptation in the conical groove, be connected with the second motor on the conical head, the outer fringe face of conical head is equipped with the spiral leaf, be equipped with coaxial pivot on the summit of conical head, the pivot passes feed opening and feed port and lower grinding miller rigid coupling down in proper order, the staving bottom is equipped with the discharge gate. The staving inside wall all is fixed connected with spacing lug in last grinding miller upper and lower both sides, goes up the grinding miller upper and lower both sides and all supports and lean on the spacing lug that corresponds and with spacing lug sliding connection. The bottom of the barrel body is fixedly connected to the bottom plate, and universal wheels are arranged below the bottom plate. The ultramicro grinder has low cost and simple structure; using the attritor to grind the lobster shells, the lobster shells can be ground to 10 micron-sized particles.
Preferably, in step b of the present invention, the method may further comprise: firstly, primarily crushing lobster shells by using a grinder, and then crushing by using an ultrasonic crusher.
Preferably, in step c, the mass concentration of KOH is 7 to 10 g/L.
Preferably, in the step d, the molar concentration of the hydrochloric acid is 2-3 mol/L.
Preferably, in the step i, the mass of the filter residue is as follows: volume of acetic acid solution =1 g: 50ml, gamma irradiation dose =5000 Gy.
Preferably, in step a, the lobster shells are dried at 50-60 ℃ for 24 h. The lobster shells are not easy to deteriorate at the temperature of 50-60 ℃, and the drying efficiency is high.
The invention has the beneficial effects that: the invention provides a method for preparing a flexible screen transparent substrate film by utilizing lobster shells, which is low in cost.
Drawings
FIG. 1 is a schematic view of an attritor.
In the figure: the device comprises a barrel body 1, a transmission wheel 2, a conical groove 3, a feed opening 4, a gear 5, a groove 6, a driving wheel 7, an upper grinding wheel 8, a lower grinding wheel 9, an adjusting screw rod 10, a conical head 11, a spiral blade 12, a rotating shaft 13, a feed hole 14 and a discharge opening 15.
Detailed Description
The invention is explained in further detail below with reference to the figures and the detailed description:
example 1:
a method for preparing a flexible screen transparent substrate film by utilizing lobster shells comprises the following steps:
step a, drying the lobster shells; the lobster shells are dried at 50-60 deg.C for 24 h. B, crushing the lobster shells into 10-micron lobster shell particles; primarily crushing lobster shells by using a grinder, and crushing by using an ultrasonic crusher; step c, boiling and refluxing the mixture for 2d by using KOH; the mass concentration of KOH is 7-10 g/L; d, soaking and stirring for 2d by hydrochloric acid; the molar concentration of the hydrochloric acid is 2-3 mol/L; step e, refluxing for 5 hours by using absolute ethyl alcohol; step f, washing the mixture to be neutral by using deionized water; step g, according to the mass of the lobster shell particles: volume of aminotrimethylene sodium phosphate solution =1 g: stirring for 2 days at the ratio of 20ml, wherein the pH value of the aminotrimethylene sodium phosphate solution is 10-13; step h, filtering to obtain filter residue, and washing the filter residue to be neutral by using deionized water; step i, putting filter residues into an acetic acid solution with the PH value of 2-3 for gamma ray irradiation, and centrifuging for 30min at the rotating speed of over 12000 rpm; the mass of filter residue: volume of acetic acid solution =1 g: 50ml, gamma irradiation dose =5000 Gy. And j, taking the centrifuged supernatant, diluting the supernatant by 10 times by using deionized water, and evaporating the water by using an oil bath to dryness to finally obtain the flexible screen transparent substrate film.
In the embodiment, the grinder can adopt a grinder with the model of MKCA6-3, and has the advantage of finely adjustable grinding.
Example 2:
this embodiment is substantially the same as embodiment 1 except that: in the step b, the lobster shells are crushed by an ultramicro grinding machine, the ultramicro grinding machine comprises a barrel body 1, a transmission wheel 2 is arranged in the barrel body 1, a conical groove 3 for blanking is arranged on the upper side of the transmission wheel 2, a blanking hole 4 is arranged at the lowest point of the conical groove 3 of the transmission wheel 2, a gear 5 is arranged on the outer edge surface of the transmission wheel 2, a groove 6 is arranged at the position corresponding to the gear 5 of the barrel body 1, the gear 5 is positioned in the groove 6, a driving wheel 7 meshed with the gear 5 is arranged in the groove 6, the driving wheel 7 is connected with a motor, the motor is fixedly connected on the barrel body 1, an upper grinding wheel 8 and a lower grinding wheel 9 are arranged below the transmission wheel 2 in the barrel body 1, the lower grinding wheel 9 is positioned between the upper grinding wheel 8 and the transmission wheel 2, a feeding hole 14 is arranged at the position corresponding to the blanking hole 4, adjusting screw 10 bottom rigid coupling is on last grinding miller 8, adjusting screw 10 top threaded connection has adjusting nut, adjusting nut supports and leans on 2 upsides of drive wheel, be equipped with in the bell jar 3 with the conical head 11 of bell jar 3 adaptation, be connected with the second motor on the conical head 11, the outer fringe face of conical head 11 is equipped with spiral leaf 12, be equipped with coaxial pivot 13 on the summit of conical head 11, pivot 13 passes feed opening 4 and feed port 14 and lower grinding miller 9 rigid coupling downwards in proper order, 1 bottom of staving is equipped with discharge gate 15.
In the embodiment, the superfine grinding machine has the advantages of simple structure and low cost, and has the characteristic of adjustability; when the lobster shell crusher is used, the lobster shells are poured into a barrel body, then a second motor is operated to drive a conical head 11 to rotate, meanwhile, the motor is operated to drive a driving wheel 2 to rotate, the driving wheel 2 drives an upper grinding wheel 8 to rotate, the conical head 11 drives a lower grinding wheel 9 to rotate, the rotating direction of the conical head 11 is opposite to that of the driving wheel 2, a spiral blade 12 on the conical head 11 drives the lobster shells to move downwards in a conical groove 3, the spiral blade 12 simultaneously carries out primary crushing on the lobster shells, the primarily crushed lobster shells fall to a feeding hole 14 from a feed opening and then fall to the lower grinding wheel 9 through the feeding hole 14, then the upper grinding wheel 8 and the lower grinding wheel 9 grind the lobster shells, the ground lobster shells come out from the edge of the lower grinding wheel 9 and fall to the bottom of the barrel body and finally come out from a discharge opening 15, an adjusting nut is rotated, the distance between the upper grinding wheel 8 and the lower grinding wheel 9 can, so that the fineness of the grinding can be adjusted.
Claims (6)
1. A method for preparing a flexible screen transparent substrate film by utilizing lobster shells is characterized by comprising the following steps:
step a, drying the lobster shells;
b, crushing the lobster shells into 10-micron lobster shell particles;
step c, boiling and refluxing the mixture for 2d by using KOH;
d, soaking and stirring for 2d by hydrochloric acid;
step e, refluxing for 5 hours by using absolute ethyl alcohol;
step f, washing the mixture to be neutral by using deionized water;
step g, according to the mass of the lobster shell particles: volume of aminotrimethylene sodium phosphate solution =1 g: stirring for 2 days at the ratio of 20ml, wherein the pH value of the aminotrimethylene sodium phosphate solution is 10-13;
step h, filtering to obtain filter residue, and washing the filter residue to be neutral by using deionized water;
step i, putting filter residues into an acetic acid solution with the PH value of 2-3 for gamma ray irradiation, and centrifuging for 30min at the rotating speed of over 12000 rpm;
step j, taking the centrifuged supernatant, diluting the supernatant by 10 times by using deionized water, and evaporating water by using an oil bath to dryness to finally obtain a flexible screen transparent substrate film;
in the step b, the lobster shells are crushed by the superfine grinding machine, the superfine grinding machine comprises a barrel body, a transmission wheel is arranged in the barrel body, a conical groove for blanking is arranged on the upper side of the transmission wheel, a blanking port is arranged at the lowest point of the conical groove of the transmission wheel, a gear is arranged on the outer edge surface of the transmission wheel, a groove is arranged at the position of the barrel body corresponding to the gear, the gear is positioned in the groove, a driving wheel meshed with the gear is arranged in the groove, the driving wheel is connected with a motor, the motor is fixedly connected on the barrel body, an upper grinding wheel and a lower grinding wheel are arranged below the transmission wheel in the barrel body, the lower grinding wheel is positioned between the upper grinding wheel and the transmission wheel, a feeding hole is arranged at the position of the upper grinding wheel corresponding to the blanking port, an adjusting screw rod is arranged on the transmission wheel in a, adjusting nut supports and leans on the drive wheel upside, be equipped with the conical head with the conical groove adaptation in the conical groove, be connected with the second motor on the conical head, the outer fringe face of conical head is equipped with the spiral leaf, be equipped with coaxial pivot on the summit of conical head, the pivot passes feed opening and feed port and lower grinding miller rigid coupling down in proper order, the staving bottom is equipped with the discharge gate.
2. The method for preparing a flexible screen transparent substrate film by using the lobster shells as claimed in claim 1, wherein in the step b, the lobster shells are primarily crushed by using a grinder and then crushed by using an ultrasonic crusher.
3. The method for preparing the flexible screen transparent substrate film by using the lobster shells as claimed in claim 1, wherein the mass concentration of KOH is 7-10g/L in the step c.
4. The method for preparing the flexible screen transparent substrate film by using the lobster shells as claimed in claim 1, wherein the hydrochloric acid has a molar concentration of 2-3mol/L in the step d.
5. The method for preparing the flexible screen transparent substrate film by utilizing the lobster shells as claimed in claim 1, wherein in the step i, the mass of filter residues is as follows: volume of acetic acid solution =1 g: 50ml, gamma irradiation dose =5000 Gy.
6. The method for preparing the flexible screen transparent substrate film by using the lobster shells as claimed in claim 1 or 2 or 3 or 4 or 5, wherein in the step a, the lobster shells are dried at 50-60 ℃ for 24 h.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910621198.8A CN110420739B (en) | 2019-07-10 | 2019-07-10 | Method for preparing flexible screen transparent substrate film by utilizing lobster shells |
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| CN201910621198.8A CN110420739B (en) | 2019-07-10 | 2019-07-10 | Method for preparing flexible screen transparent substrate film by utilizing lobster shells |
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| CN110420739B true CN110420739B (en) | 2021-02-09 |
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| CN110743678B (en) * | 2019-12-03 | 2022-04-08 | 冷水江市高科窑炉耐火材料有限公司 | Grinding and stirring device for production of molten steel heat-preservation covering agent |
| CN112844611A (en) * | 2020-12-25 | 2021-05-28 | 马鞍山采石矶涂料有限公司 | Coating processing equipment based on rotary grinding dispersion principle |
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| CA2783759C (en) * | 2005-03-24 | 2015-12-15 | Xyleco, Inc. | Fibrous materials and composites |
| DE102013103012A1 (en) * | 2013-03-25 | 2014-09-25 | Maschinenfabrik Gustav Eirich Gmbh & Co. Kg | Granulatkonditionierer |
| CN103342821B (en) * | 2013-07-10 | 2014-10-15 | 南京林业大学 | Method for preparing chitin nanofibre by using shrimp and crab shells |
| KR102374305B1 (en) * | 2017-08-28 | 2022-03-16 | (주)솔잎기술 | Composition for window film, flexible window film prepared using the same and flexible display apparatus comprising the same |
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