CN109171403B - Combined chopsticks - Google Patents

Combined chopsticks Download PDF

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Publication number
CN109171403B
CN109171403B CN201811437575.4A CN201811437575A CN109171403B CN 109171403 B CN109171403 B CN 109171403B CN 201811437575 A CN201811437575 A CN 201811437575A CN 109171403 B CN109171403 B CN 109171403B
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chopstick
mortise
tenon
parts
chopstick body
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CN109171403A (en
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张广红
王梓争
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Ningbo Kebang Huacheng Technology Transfer Service Co ltd
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Ningbo Kebang Huacheng Technology Transfer Service Co ltd
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G21/00—Table-ware
    • A47G21/10—Sugar tongs; Asparagus tongs; Other food tongs
    • A47G21/103—Chop-sticks

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Abstract

The invention discloses a pair of combined chopsticks, which comprises a first chopstick body and a second chopstick body, wherein the top ends of the first chopstick body and the second chopstick body are movably connected through a mortise-tenon joint structure. The first chopstick body and the second chopstick body have the same structure and are respectively provided with a lower chopstick body and an upper chopstick body, and the lower chopstick body can be rotatably connected so that the lower chopstick body and the lower chopstick body can rotate; the tenon-and-mortise connection structure comprises a tenon structure and a mortise structure, the tenon structure comprises a tenon seat body and a tenon fixed on one side, the tenon seat body is fixed on the top end of the chopstick upper body of the second chopstick body, the mortise structure comprises a mortise seat body and a mortise formed in one side, the mortise seat body is fixed on the chopstick upper body of the second chopstick body, and the mortise can be matched and connected with the tenon.

Description

Combined chopsticks
The invention relates to a combined chopstick with a mortise and tenon joint structure, which has the original application number of 2017110085368, and the application date of 2017, 10 and 25.
Technical Field
The invention relates to a pair of combined chopsticks, belonging to the field of articles for daily use.
Background
Chopsticks are traditional dining tools for Chinese people, and when people eat food in a collective way in public places, the sanitary problem is firstly faced, and becomes a problem that every person must face every day. Various hidden dangers exist in the common chopsticks made of various materials such as stainless steel, plastic, wood, bamboo and the like at present, for example, the stainless steel chopsticks are durable, but have heavy metals; when the chopsticks made of plastic, wood, bamboo and other materials are repeatedly used, aflatoxin and various bacteria can not be treated, the health of human beings is seriously influenced, even the life is endangered, the chopsticks are very weak to use, and the chopsticks must be replaced regularly, so that the pollution to the environment is caused, the use cost is increased,
with the continuous improvement of living standard, each person needs a pair of healthy, durable and sanitary chopsticks.
And the chopsticks are combined appliances, single chopsticks can not be used, and how to combine the chopsticks used by a person after meal can prevent the chopsticks from being mixed with the chopsticks of other people, and the chopsticks are also a big problem of convenient brushing.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a pair of combined chopsticks which can be conveniently fixed and combined, are convenient to wash and have good antibacterial effect.
In order to achieve the purpose, the invention adopts the technical scheme that: a combined chopstick comprises a first chopstick body and a second chopstick body, wherein the top ends of the first chopstick body and the second chopstick body are movably connected through a mortise-tenon joint structure.
The first chopstick body and the second chopstick body have the same structure and are respectively provided with a lower chopstick body and an upper chopstick body, and the lower chopstick body can be rotatably connected so that the lower chopstick body and the lower chopstick body can rotate;
the tenon-and-mortise connection structure comprises a tenon structure and a mortise structure, the tenon structure comprises a tenon seat body and a tenon fixed on one side, the tenon seat body is fixed on the top end of the chopstick upper body of the second chopstick body, the mortise structure comprises a mortise seat body and a mortise formed in one side, the mortise seat body is fixed on the chopstick upper body of the second chopstick body, and the mortise can be matched and connected with the tenon.
The mortises and the tenons are both in a trapezoidal structure.
The first chopstick body and the second chopstick body are movably connected through the mortise-tenon joint structure, can be flexibly connected and detached without influencing use, and when the chopsticks are used up, the first chopstick body and the second chopstick body form a combined body by utilizing the mortise-tenon joint structure, so that the chopsticks are prevented from being mixed with other chopsticks, the chopsticks are convenient to use next time, the lower bodies of the chopsticks and the lower bodies of the chopsticks are rotatably connected.
Drawings
FIG. 1 is a schematic view of the connection of the combined chopsticks;
FIG. 2 is a split view of the combined chopsticks;
FIG. 3 is an enlarged view of A in FIG. 2;
in the figure, the chopstick comprises a first chopstick body 1, a second chopstick body 2, a second chopstick body 3, a lower chopstick body 4, an upper chopstick body 5, a mortise seat body 6, a mortise 7, a tenon seat body 8 and a tenon.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a pair of chopsticks according to an embodiment of the present invention includes a first chopstick body 1 and a second chopstick body 2, wherein the top ends of the first chopstick body and the second chopstick body are movably connected by a mortise and tenon joint structure.
The first chopstick body and the second chopstick body have the same structure and are respectively provided with a lower chopstick body 3 and an upper chopstick body 4, and the lower chopstick body can be rotatably connected so that the lower chopstick body and the lower chopstick body can rotate; the rotation mode is the prior art, such as a bearing mode, that is, the lower body of the chopstick and the lower body of the chopstick are connected through a bearing to form a rotation connection mode, or a movable hinge or a sliding rail can firstly rotate and slide.
The mortise and tenon joint structure comprises a tenon structure and a mortise structure, the tenon structure comprises a tenon seat body 7 and a tenon 8 fixed on one side, the tenon seat body is fixed on the top end of the chopstick upper body of the second chopstick body, the mortise structure comprises a mortise seat body 5 and a mortise 6 arranged on one side, the mortise seat body is fixed on the chopstick upper body of the second chopstick body, and the mortise can be matched and connected with the tenon.
The mortises and the tenons are both in a trapezoidal structure.
The first chopstick body and the second chopstick body are movably connected through the mortise-tenon joint structure, can be flexibly connected and detached without influencing use, and when the chopsticks are used up, the first chopstick body and the second chopstick body form a combined body by utilizing the mortise-tenon joint structure, so that the chopsticks are prevented from being mixed with other chopsticks, the chopsticks are convenient to use next time, the lower bodies of the chopsticks and the lower bodies of the chopsticks are rotatably connected.
The first chopstick body, the second chopstick body and the ball head structure connected with the chopstick bodies are convenient to connect, the connecting mechanism can be detachably connected, when the chopstick bodies are used, the two chopstick bodies are separated, the use is not influenced, when the chopstick bodies are used up, the ball heads are respectively fixed in the sliding grooves of the chopstick bodies, the first chopstick body and the second chopstick body form a combined body to prevent the chopstick bodies from being mixed with other chopsticks, the next use is convenient, the most important two chopstick bodies are movably connected through the ball heads, and the ball heads can rotate relative to the sliding grooves of the chopstick bodies.
The invention discloses a nano antibacterial material used on the surface of a chopstick body, and the antibacterial material is silicon dioxide or MOF-SO3The material is a novel high-efficiency high-molecular antibacterial additive material formed by using an ion antibacterial principle and a micro-magnetic electric field technical principle as main raw materials and using an ion antibacterial principle and a micro-magnetic electric field technical principle, wherein on one hand, the material adsorbs and exchanges various ions on the basis of magnetoelectricity by an ion antibacterial means, SO that the length of an R1 chain is stabilized, the R1 chain is controlled within a controllable range, and the antibacterial property reaches the most active state, and on the other hand, the MOF-SO3The @ MCM-22 nano material can effectively interfere the synthesis of cell walls, the important component of the bacterial cell walls is furoglycan, the interference effect of an ionic antibacterial agent on the cell walls mainly inhibits the connection of a polysaccharide chain and the crosslinking of the skin, so that the integrity of the cell walls is lost, the protection effect on osmotic pressure is lost, the thalli are damaged and die, and the antibacterial performance of the material is obviously improved; the preparation method disclosed by the invention is green and environment-friendly, has small influence on the environment, and the prepared material has a good antibacterial effect on escherichia coli and staphylococcus aureus.
The specific nano antibacterial material is as follows:
example 1
The preparation method of the nano antibacterial material comprises the following steps:
step 1, mixing 5.5 parts of silicon dioxide and 22 parts of MOF-SO3Mixing the @ MCM-22 nano material, adding the mixture into 35 parts of deionized water, and stirring to obtain a suspension; mixing aluminum oxide, zinc nitrate and magnesium oxide with the suspension according to the mass ratio of 1.5:1Respectively heating the two solutions to 50 ℃ by using a water bath to obtain two solutions, then mixing the two solutions and continuously stirring the two solutions until the two solutions are completely dissolved to obtain a multi-element ion mixed solution;
step 2, firstly melting 10 parts of copper, then adding 15 parts of zinc to melt and mix the zinc and the copper, then adding 20 parts of charcoal powder, uniformly mixing, cooling, and grinding to obtain the composite brass powder;
step 3, adding 12 parts of composite brass powder into 20 parts of multi-element ion mixed solution, uniformly mixing, then adding 70 parts of nitric acid solution with the pH value of 4.3, and heating to 120 ℃; preparing a solution with the total concentration of glacial acetic acid and diethanolamine being 35wt% (the mass ratio of the glacial acetic acid to the diethanolamine is 1: 3), adding the solution into the obtained nitric acid mixed solution to generate a precipitate, washing the precipitate, and then heating and washing for three times; the dosage of the solution of glacial acetic acid and diethanolamine is nitric acid solution in each washing
Adding titanium dioxide accounting for 30 percent of the solution by mass into the solution by 1.5 times of the mass of the solution, drying at 90 ℃, and cooling to obtain the nano antibacterial material. The prepared nano material is coated on the surface of the chopstick body.
The MOF-SO3The preparation method of the @ MCM-22 nano material comprises the following steps:
step 1, activating 0.5kg of MCM-22 zeolite powder at 500 ℃, dispersing the activated zeolite powder into 10L of ethanol, transferring a mixture of the activated zeolite and the ethanol into a three-neck flask filled with 2L of ammonia water after ball milling, raising the temperature to 60 ℃, heating for 1h, adding 1L of TEOS, continuing stirring for 30min, filtering the obtained slurry, washing for 3 times by using ethanol, and finally obtaining a short-chain modifier modified MCM-22 filter cake;
step 2, taking 15 parts of the modified MCM-22 filter cake, ultrasonically dispersing the filter cake in 45 parts of N-Dimethylacetamide (DMA), respectively weighing 50 parts of zirconium oxychloride hydrate and 8 parts of sodium 2-sulfoacid terephthalate, adding the zirconium oxychloride hydrate and the sodium 2-sulfoacid terephthalate into the dispersion, adding 11 parts of formic acid, ultrasonically dispersing for 20min, transferring the mixture into a polytetrafluoroethylene lining, covering the polytetrafluoroethylene lining, placing the polytetrafluoroethylene lining into a reaction kettle, sealing the reaction kettle tightly, placing the reaction kettle into a constant-temperature oven at 150 ℃ for continuous reaction for 24h, centrifugally separating a reaction product, washing the reaction product for 3 times by using a fresh DMF solvent, washing the reaction product for multiple times by using a fresh ethanol solvent, and centrifugally separating the reaction productFinally placing the product in a drying oven at 50 ℃ for 6h to obtain MOF-SO3@ MCM-22 composite particles;
step 3, adding 20 parts of SPEEK (sulfonation degree of 62%) into 3 parts of DMF (dimethyl formamide) to dissolve the SPEEK to form a SPEEK solution, and adding 1wt% of MOF-SO into the polymer solution3@ MCM-22 composite particles and sonicated for 3h to disperse uniformly the dispersion was carefully poured into a mold and quickly placed in a 60 ℃ oven for 8h and then the temperature was raised to 80 ℃ for 8 h. Finally, the nano material is converted into H by acidifying with 1mol/L hydrochloric acid for 48H at room temperature+Form, finally obtaining the final MOF-SO3@ MCM-22 nanomaterial.
Example 2
Step 1, mixing 10 parts of silicon dioxide and 12 parts of MOF-SO3Mixing the @ MCM-22 nano material, adding the mixture into 35 parts of deionized water, and stirring to obtain a suspension; mixing aluminum oxide, zinc nitrate and magnesium oxide with the suspension according to the mass ratio of 1.5:1 respectively to obtain two solutions, heating the two solutions to 50 ℃ by using a water bath respectively, then mixing the two solutions, and continuously stirring until the two solutions are completely dissolved to obtain a multi-element ion mixed solution; the rest of the preparation was the same as in example 1.
Example 3
Step 1, mixing 8 parts of silicon dioxide and 16 parts of MOF-SO3Mixing the @ MCM-22 nano material, adding the mixture into 35 parts of deionized water, and stirring to obtain a suspension; mixing aluminum oxide, zinc nitrate and magnesium oxide with the suspension according to the mass ratio of 1.5:1 respectively to obtain two solutions, heating the two solutions to 50 ℃ by using a water bath respectively, then mixing the two solutions, and continuously stirring until the two solutions are completely dissolved to obtain a multi-element ion mixed solution; the rest of the preparation was the same as in example 1.
Example 4
Step 1, mixing 5.5 parts of silicon dioxide and 22 parts of MOF-SO3Mixing the @ MCM-22 nano material, adding the mixture into 35 parts of deionized water, and stirring to obtain a suspension; mixing aluminum oxide, zinc nitrate and magnesium oxide with the suspension according to the mass ratio of 3:1 to obtain two solutions, respectively heating the two solutions to 50 ℃ by using a water bath, mixing the two solutions, and continuously stirring until the two solutions are completely dissolved to obtain a multi-ion mixed solution; the rest(s)The preparation was the same as in example 1.
Example 5
Step 1, mixing 35 parts of silicon dioxide and 20 parts of MOF-SO3Mixing the @ MCM-22 nano material, adding the mixture into 35 parts of deionized water, and stirring to obtain a suspension; mixing aluminum oxide, zinc nitrate and magnesium oxide with the suspension according to the mass ratio of 2.5:1 respectively to obtain two solutions, heating the two solutions to 50 ℃ by using a water bath respectively, then mixing the two solutions, and continuously stirring until the two solutions are completely dissolved to obtain a multi-element ion mixed solution; the rest of the preparation was the same as in example 1.
Example 6
Step 1, mixing 5 parts of silicon dioxide and 10 parts of MOF-SO3Mixing the @ MCM-22 nano material, adding the mixture into 35 parts of deionized water, and stirring to obtain a suspension; mixing aluminum oxide, zinc nitrate and magnesium oxide with the suspension according to the mass ratio of 1.5:1 respectively to obtain two solutions, heating the two solutions to 50 ℃ by using a water bath respectively, then mixing the two solutions, and continuously stirring until the two solutions are completely dissolved to obtain a multi-element ion mixed solution; the rest of the preparation was the same as in example 1.
Example 7
Step 1, mixing 5.5 parts of silicon dioxide and 32 parts of MOF-SO3Mixing the @ MCM-22 nano material, adding the mixture into 35 parts of deionized water, and stirring to obtain a suspension; mixing aluminum oxide, zinc nitrate and magnesium oxide with the suspension according to the mass ratio of 1.5:1.5 respectively to obtain two solutions, heating the two solutions to 50 ℃ by using a water bath respectively, then mixing the two solutions, and continuously stirring until the two solutions are completely dissolved to obtain a multi-ion mixed solution; the rest of the preparation was the same as in example 1.
Example 8
Step 1, mixing 6.5 parts of silicon dioxide and 12 parts of MOF-SO3Mixing the @ MCM-22 nano material, adding the mixture into 35 parts of deionized water, and stirring to obtain a suspension; mixing aluminum oxide, zinc nitrate and magnesium oxide with the suspension according to the mass ratio of 1.5:1 respectively to obtain two solutions, heating the two solutions to 50 ℃ by using a water bath respectively, then mixing the two solutions, and continuously stirring until the two solutions are completely dissolved to obtain a multi-element ion mixed solution; the rest of the preparation was the same as in example 1.
Example 9
Step 1, mixing 5 parts of silicon dioxide and 32 parts of MOF-SO3Mixing the @ MCM-22 nano material, adding the mixture into 35 parts of deionized water, and stirring to obtain a suspension; mixing aluminum oxide, zinc nitrate and magnesium oxide with the suspension according to a mass ratio of 5:1 to obtain two solutions, respectively heating the two solutions to 50 ℃ by using a water bath, mixing the two solutions, and continuously stirring until the two solutions are completely dissolved to obtain a multi-ion mixed solution; the rest of the preparation was the same as in example 1.
Example 10
Step 1, mixing 3.5 parts of silicon dioxide and 17 parts of MOF-SO3Mixing the @ MCM-22 nano material, adding the mixture into 35 parts of deionized water, and stirring to obtain a suspension; mixing aluminum oxide, zinc nitrate and magnesium oxide with the suspension according to the mass ratio of 1.5:3 respectively to obtain two solutions, heating the two solutions to 50 ℃ by using a water bath respectively, then mixing the two solutions, and continuously stirring until the two solutions are completely dissolved to obtain a multi-element ion mixed solution; the rest of the preparation was the same as in example 1.
Example 11
Step 1, mixing 5.5 parts of silicon dioxide, 11 parts of modified nanometer ZY-14CMS nano powder and 22 parts of MOF-SO3Mixing the @ MCM-22 nano material, adding the mixture into 35 parts of deionized water, and stirring to obtain a suspension; mixing aluminum oxide, zinc nitrate and magnesium oxide with the suspension according to the mass ratio of 1.5:1 respectively to obtain two solutions, heating the two solutions to 50 ℃ by using a water bath respectively, then mixing the two solutions, and continuously stirring until the two solutions are completely dissolved to obtain a multi-element ion mixed solution; the rest of the preparation was the same as in example 1.
The preparation method of the modified nanometer ZY-14CMS nanometer powder comprises the following steps:
dissolving 10 parts of methylcellulose and 15 parts of sodium dodecyl benzene sulfonate in 60 parts of deionized water, fully and uniformly stirring by using a glass rod to obtain a dispersant solution, then pouring 80 parts of ZY-14CMS nano powder into a glass dish, placing the glass dish into a vacuum drying oven for drying at the temperature of 70 ℃ until the glass dish is dried, and finally crushing the dried product by using a crusher to obtain the modified nano ZY-14CMS nano powder. ZY-14CMS nanometer powder Tianjin is sold by Zhengyuan Hao chemical science and technology Limited company, namely ZY-14CMS carbon molecular sieve.
Comparative example 1
The difference from embodiment 1 is that: in step 2 of the medical nano antibacterial material, firstly, 20 parts of copper is melted, then 5 parts of zinc is added to melt and mix the zinc and the copper, then 15 parts of charcoal powder is added, the mixture is uniformly mixed and cooled, and the mixture is ground to obtain the composite brass powder, wherein the rest steps are completely the same as those in example 1.
Comparative example 2
The difference from embodiment 1 is that: in step 2 of the medical nano antibacterial material, 5 parts of copper is melted, 20 parts of zinc is added to melt and mix the zinc and the copper, 5 parts of charcoal powder is added, the mixture is cooled after being uniformly mixed, and the composite brass powder is obtained by grinding, wherein the rest steps are completely the same as those in example 1.
Comparative example 3
The difference from embodiment 1 is that: in step 3 of the medical nano antibacterial material, 6 parts of composite brass powder is added into 18 parts of the multi-element ion mixed solution, the mixture is uniformly mixed, 70 parts of nitric acid solution with the pH value of 4.3 is added, the temperature is raised to 120 ℃, and the rest steps are completely the same as those in example 1.
Comparative example 4
The difference from embodiment 1 is that: in step 3 of the medical nano antibacterial material, 24 parts of composite brass powder is added into 8 parts of the multi-element ion mixed solution, the mixture is uniformly mixed, 70 parts of nitric acid solution with the pH value of 4.3 is added, the temperature is raised to 120 ℃, and the rest steps are completely the same as those in example 1.
Comparative example 5
The difference from embodiment 1 is that: MOF-SO3In step 2 of preparing the @ MCM-22 nanomaterial, 25 parts of zirconium oxychloride hydrate and 16 parts of sodium 2-sulfonate terephthalate are respectively weighed and added into the dispersion, 11 parts of formic acid is added, ultrasonic dispersion is carried out for 20min, and the rest steps are completely the same as those in example 1.
Comparative example 6
The difference from embodiment 1 is that: MOF-SO3In step 2 of preparing the @ MCM-22 nano material, 50 parts of zirconium oxychloride hydrate and 45 parts of sodium 2-sulfoterephthalate are respectively weighed and added into the dispersion liquid, 26 parts of formic acid are added, ultrasonic dispersion is carried out for 20min, and the rest is carried outThe procedure was exactly the same as in example 1.
Comparative example 7
The difference from embodiment 1 is that: MOF-SO3In step 3 of @ MCM-22 nanomaterial preparation, SPEEK (degree of sulfonation 42%) in 30 parts is dissolved by adding DMF in 3 parts to form a SPEEK solution, and the rest of the procedure is exactly the same as in example 1.
Comparative example 8
The difference from embodiment 1 is that: MOF-SO3In step 3 of @ MCM-22 nanomaterial preparation, SPEEK (degree of sulfonation 72%) in 20 parts was dissolved by adding DMF in 6 parts to form a SPEEK solution, and the rest of the procedure was exactly the same as in example 1.
Comparative example 9
The difference from embodiment 1 is that: MOF-SO3In step 3 of the preparation of the @ MCM-22 nanomaterial, 3wt% MOF-SO was added to the above polymer solution3@ MCM-22 composite particles and sonicated for 3h, the remaining procedure was exactly the same as in example 1.
Comparative example 10
The difference from embodiment 1 is that: MOF-SO3In step 3 of the preparation of the @ MCM-22 nanomaterial, 10wt% MOF-SO was added to the above polymer solution3@ MCM-22 composite particles and sonicated for 3h, the remaining procedure was exactly the same as in example 1.
Comparative example 11
The difference from example 11 is that: common ZY-14CMS nanometer powder is added instead of modified nanometer ZY-14CMS nanometer powder.
The ionic medical nano antibacterial material prepared in the above examples and comparative examples is subjected to performance test, and escherichia coli inhibition rates after 50 days and 100 days are tested, and antibacterial performance test: transferring a proper amount of escherichia coli strains (staphylococcus aureus) to sterile physiological water by using an inoculating loop under the aseptic condition, and uniformly oscillating. The test plate coated with the nano composite sterilization material is placed in a sterilized culture dish, 1mL of bacterial liquid with proper concentration is coated on the surface of the test plate by a coating method, the sterilized agar culture medium is added after the test plate is irradiated for 1 hour under a fluorescent lamp, and the addition amount is preferably that the surface of the test plate is covered. Then putting the strain into an incubator, culturing the strain at the constant temperature of 37 ℃ for 24h, and checking the sterilization rate by using a colony counting method, wherein the result is as follows;
Figure DEST_PATH_IMAGE002
the experimental result shows that the nano antibacterial material on the surface of the chopstick body has good antibacterial effect, the inhibition rates of staphylococcus aureus and escherichia coli of the material are all higher than those of the common antibacterial material in the examples 1 to 10 under the standard test condition, the proportion of the raw materials in the antibacterial material is respectively changed, the antibacterial performance of the material is affected to different degrees, and the silicon dioxide and the MOF-SO3The mass ratio of the @ MCM-22 nano material is 1: 4, when the dosage of other ingredients is fixed, the antibacterial effect is best; it is worth noting that the antibacterial effect and the antibacterial stability of the modified nano ZY-14CMS nano powder in the example 11 are obviously improved, which shows that the modified nano ZY-14CMS nano powder is MOF-SO3The antibacterial performance of the @ MCM-22 coating structure has better optimization effect and long antibacterial stability time; the antibacterial effect of the composite brass powder is obviously reduced according to the consumption of the raw materials in the comparative examples 1 to 2, which shows that the consumption of zinc, copper and charcoal powder has an important influence on the antibacterial property of the material; the comparison examples 3 and 4 change the proportion of the composite brass powder and the multi-element ion mixed solution, the synthesized material has low bacteria inhibition rate and poor antibacterial performance; comparative example 5 to comparative example 6 modification of MOF-SO3The raw material proportion of the @ MCM-22 nano material is poor, which indicates that the proportion of the raw materials of the hydrous zirconium oxychloride and the 2-sulfonic acid sodium terephthalate is MOF-SO3The recombination of the @ MCM-22 nano material has important influence; in comparison examples 7 and 8, the SPEEK sulfonation degree and the DMF addition amount are changed, the antibacterial performance of the material is still poor, and the synthesis of the SPEEK solution is important; comparative examples 9 and 10 modified MOF-SO3The antibacterial effect of the use amount of the @ MCM-22 composite particles is obviously reduced, which indicates that too much composite particles can have great influence on the bacterial inhibition rate of the material; therefore, the chopstick body has excellent antibacterial effect.

Claims (1)

1. The combined chopsticks comprise a first chopstick body and a second chopstick body, and are characterized in that the top ends of the first chopstick body and the second chopstick body are movably connected through a tenon-and-mortise connection structure;
the tenon-and-mortise connection structure comprises a tenon structure and a mortise structure, the tenon structure comprises a tenon seat body and a tenon fixed on one side, the tenon seat body is fixed on the top end of the chopstick upper body of the second chopstick body, the mortise structure comprises a mortise seat body and a mortise formed on one side, the mortise seat body is fixed on the chopstick upper body of the first chopstick body, and the mortise can be matched and connected with the tenon; the surfaces of the first chopstick body and the second chopstick body are respectively provided with an antibacterial material, and the antibacterial material takes silicon dioxide, MOF-SO @ MCM-22 nano materials, aluminum oxide, zinc nitrate, magnesium oxide, copper, charcoal powder and nitric acid as main raw materials.
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