CN113040994B - Thumb valgus corrects shoe-pad - Google Patents
Thumb valgus corrects shoe-pad Download PDFInfo
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- CN113040994B CN113040994B CN202110256238.0A CN202110256238A CN113040994B CN 113040994 B CN113040994 B CN 113040994B CN 202110256238 A CN202110256238 A CN 202110256238A CN 113040994 B CN113040994 B CN 113040994B
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/019—Toe correcting or spreading devices
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Abstract
The invention relates to a hallux valgus correcting insole, which comprises an insole main body, wherein the insole main body is provided with a contour curved surface matched with feet of a human body; the front part of the insole main body is provided with an eversion correcting part facing the inner side of the thumb of the foot, and the eversion correcting part protrudes out of the upper surface of the insole main body and extends along the length direction of the insole main body; a thumb correction piece is arranged below the eversion correction part, the thumb correction piece is embedded in the eversion correction part in an interference manner from the lower part of the insole body, and the shape of the thumb correction piece is matched with that of the eversion correction part; wherein, the thumb correction piece is made of hard material, and the eversion correction part is made of soft material. The correcting insole can form a certain block to the thumb, prevent the thumb from deforming in an eversion way, can finish correcting treatment in the walking process of a patient, not only saves the time for pulling out the corrector for a fixed time to wear, but also can reduce the phenomenon of aggravation of the thumb in the eversion way caused by wearing high-heeled shoes.
Description
Technical Field
The invention relates to the field of insoles, in particular to a hallux valgus correction insole.
Background
Women often need to wear high-heeled shoes due to the requirements of beauty or work, but wearing the high-heeled shoes for a long time causes problems such as eversion and inflammation of the thumb of the foot, and influences daily life, so most patients can choose to treat the disease by wearing the foot orthosis. The existing orthotics are various in types, and according to different orthopedic principles, the hallux valgus orthotics can be divided into two types: a first type of orthosis, which applies force on the outside of the first toe, may cause an excessive gap between the first toe and the second toe; a second category of orthoses that apply force medial to the first toe uses orthoses that apply force from a flexible material.
However, the existing orthotics are mostly used for correcting under static state, and correction is not facilitated when walking, and when walking, the worn orthotics change the direction of toes easily due to stress of different degrees, so that the correction effect is influenced and pain of feet of a patient is caused. In addition, the existing orthotics are often insufficient in air permeability, and the air at the feet of a patient cannot circulate due to long-term use, so that inflammation or smelly feet are caused.
Disclosure of Invention
Aiming at the problems, the invention provides a hallux valgus correction insole, which aims to solve the technical problems that the existing orthoses are mostly used for correcting in a static state and are not beneficial to correcting when walking, the correcting effect is influenced and the pain of feet of a patient is caused because the wearing of the orthoses is easy to change the directions of the toes due to stress with different degrees when walking, and in addition, the technical problems that the existing orthoses are often insufficient in air permeability and can cause the air non-circulation of the feet of the patient after long-term use, so that the inflammation or the foot odor phenomenon is caused are solved.
The purpose of the invention is realized by adopting the following technical scheme:
a hallux valgus correction insole comprises an insole main body, wherein the insole main body is provided with a contour curved surface matched with feet of a human body; the front part of the insole main body is provided with an eversion correcting part facing the inner side of the thumb of the foot, and the eversion correcting part protrudes out of the upper surface of the insole main body and extends along the length direction of the insole main body; a thumb correction piece is arranged below the eversion correction part, the thumb correction piece is embedded in the eversion correction part in an interference manner from the lower part of the insole body, and the shape of the thumb correction piece is matched with that of the eversion correction part; wherein, the thumb correction piece is made of hard material, and the eversion correction part is made of soft material.
Preferably, the insole body is made of the soft material.
Preferably, the hallux valgus correcting insole further comprises an arch support pad fixed to the lower surface of the insole body, the arch support pad facing the arch of the human body, and the arch support pad is made of the hard material.
Preferably, the hallux valgus correcting insole further comprises a shock absorption pad, the shock absorption pad is fixed on the lower surface of the insole main body and is opposite to the heel of the human body, and the shock absorption pad is made of the soft material.
Preferably, the upper surface of the insole body is stamped with a plurality of cleats having a height smaller than that of the eversion correcting portion.
Preferably, the soft material is a modified polyurethane material, and the modified polyurethane material is obtained by modifying polyurethane with modified rhenium diselenide nano powder.
Preferably, the preparation method of the modified rhenium diselenide nano powder comprises the following steps:
s1, weighing rhenium diselenide nano powder, adding the rhenium diselenide nano powder into deionized water, adding N- (beta-aminoethyl) -gamma-aminopropyl methyl dimethoxysilane, and performing ultrasonic dispersion uniformly to obtain a rhenium diselenide nano powder mixed solution; weighing carvacrol, adding the carvacrol into N, N-dimethylformamide, and stirring until the carvacrol is completely dissolved to obtain a carvacrol solution;
wherein the mass ratio of rhenium diselenide nano powder to N- (beta-aminoethyl) -gamma-aminopropylmethyldimethoxysilane to deionized water is 1: 0.01-0.05: 10-20, and the mass ratio of carvacrol to N, N-dimethylformamide is 1: 6-15;
s2, placing the rhenium diselenide nano powder mixed solution in a water bath at 40-60 ℃, dropwise adding a carvacrol solution while stirring at a stirring speed of 500-700 rpm, continuously stirring at a stirring speed of 300-500 rpm for 5-10 hours after dropwise adding, filtering while hot, collecting a solid product, washing the collected solid product for 3-5 times by using 50% ethanol by mass fraction, and placing the washed solid product in drying equipment to dry to constant weight to obtain modified rhenium diselenide nano powder;
the dripping speed of the carvacrol solution is 20-30 drops/min, and the mass ratio of the carvacrol solution to the rhenium diselenide nano powder mixed solution is 1: 2.6-5.8.
Preferably, the preparation method of the modified polyurethane material comprises the following steps:
p1, respectively weighing polycarbonate diol and isophorone diisocyanate, adding the polycarbonate diol and isophorone diisocyanate into a reaction container, uniformly stirring, then adding N, N-dimethyl cyclohexylamine, stirring and reacting for 0.2-0.6 h at the temperature of 45-55 ℃, then heating to 70-90 ℃, continuing to react for 3.5-6.5 h, then dropwise adding 1, 2-propylene glycol, continuing to react for 2-3 h, and cooling to 45-55 ℃ to obtain a prepolymerization reaction liquid;
wherein the mass ratio of the polycarbonate diol, the isophorone diisocyanate, the N, N-dimethylcyclohexylamine and the 1, 2-propylene glycol is 1: 0.8-1.2: 0.05-0.1: 0.1-0.3;
p2, adding the modified rhenium diselenide nano powder into acetone, adding sodium dodecyl benzene sulfonate, dispersing uniformly to obtain a modified rhenium diselenide nano powder mixed solution, slowly dropwise adding the modified rhenium diselenide nano powder mixed solution into a prepolymerization reaction solution, continuously stirring while dropwise adding, stirring and reacting at 45-55 ℃ after dropwise adding is finished, gradually volatilizing the acetone to gradually thicken a reaction system, and completely volatilizing the acetone to obtain a mixed prepolymer;
wherein the mass ratio of the modified rhenium diselenide nano powder to the sodium dodecyl benzene sulfonate to the acetone is 1: 0.05-0.08: 6-10, and the mass ratio of the modified rhenium diselenide nano powder mixed solution to the prepolymerization reaction solution is 1: 3.6-5.4;
p3, adding the mixed prepolymer into an internal mixer, carrying out melting treatment for 0.2-0.5 h at 180-220 ℃, adding a foaming agent and a crosslinking agent, carrying out internal mixing treatment for 0.2-0.5 h, introducing into a double-screw extruder, and carrying out extrusion and granulation to obtain the modified polyurethane material;
wherein the mass ratio of the mixed prepolymer to the foaming agent to the crosslinking agent is 1: 0.03-0.06: 0.005-0.01.
Preferably, the blowing agent is azodicarbonamide and the crosslinking agent is dicumyl peroxide.
Preferably, the hard material is a modified polylactic acid material, and the modified polylactic acid material is obtained by compounding sophocarpine/hydroxyl silicone oil compound and polylactic acid.
Preferably, the preparation method of the sophocarpine/hydroxyl silicone oil compound comprises the following steps:
a. respectively weighing castor oil polyoxyethylene ether and sodium dodecyl benzene sulfonate, adding the castor oil polyoxyethylene ether and the sodium dodecyl benzene sulfonate into deionized water, stirring and dispersing the castor oil polyoxyethylene ether and the sodium dodecyl benzene sulfonate uniformly, sequentially adding hydroxy silicone oil and N- (beta-aminoethyl) -gamma-aminopropyl methyldimethoxysilane, dispersing the mixture uniformly again, heating the mixture to 40-50 ℃, and stirring the mixture for 2-4 hours to obtain hydroxy silicone oil mixed liquid;
wherein the mass ratio of the castor oil polyoxyethylene ether to the dodecyl benzene sulfonic acid sodium salt to the hydroxyl silicone oil to the N- (beta-aminoethyl) -gamma-aminopropyl methyl dimethoxy silane is 0.05-0.1: 0.02-0.06: 0.5-0.8: 1: 0.006-0.012;
b. weighing sophocarpine hydrobromide, adding the sophocarpine hydrobromide into deionized water, dropwise adding hydrobromic acid with the concentration of 0.1mol/L until the pH of liquid reaches 5.0-6.0, and stirring until solid is completely dissolved to obtain sophocarpine hydrobromide solution;
wherein the mass ratio of the sophocarpine hydrobromide to the deionized water is 1: 10-20;
c. dropwise adding a sophocarpine hydrobromide solution into a hydroxyl silicone oil mixed solution which is continuously stirred at 40-50 ℃, continuously reacting for 3-8 h after dropwise adding, dropwise adding a sodium hydroxide solution with the concentration of 0.1mol/L until the pH value of the liquid reaches 7.0-8.0, centrifuging to collect solids, washing the collected solids by using pure water until the washing solution is neutral, and drying in a drying device to constant weight to obtain a sophocarpine/hydroxyl silicone oil compound;
wherein the mass ratio of the sophocarpine hydrobromide solution to the hydroxy silicone oil mixed liquid is 1: 1.5-2.8.
Preferably, the preparation method of the modified polylactic acid material comprises the following steps:
(1) weighing polylactic acid, adding the polylactic acid into a high-speed stirrer, heating to a molten state, gradually adding a sophocarpine/hydroxyl silicone oil compound, and stirring and mixing uniformly to obtain a mixed compound product;
(2) and introducing the mixed composite product into a double-screw extruder, and extruding and granulating to obtain the modified polylactic acid material.
Preferably, in the step (1), the temperature of the heated molten state is 180 to 200 ℃.
Preferably, in the step (1), the mass ratio of the sophocarpine/hydroxyl silicone oil compound to the polylactic acid is 1: 5-10.
The invention has the beneficial effects that:
1. the invention manufactures the hallux valgus correction insole to replace a corrector in the current market, the correction insole is provided with a contour curved surface which is matched with the foot of a human body, wherein the valgus correction part is positioned between the thumb and the second toe of the foot of the human body, a certain block can be formed on the thumb, the valgus deformation of the thumb is prevented, the correction treatment can be completed in the walking process of a patient, the time for wearing the corrector within a fixed time is saved, and the phenomenon of aggravation of the hallux valgus caused by wearing high-heeled shoes can be reduced.
2. The invention adds the eversion correcting part and the thumb correcting piece when manufacturing the thumb eversion correcting insole, the eversion correcting part is used as a buffer structure to be directly contacted with eversion toes, and the thumb correcting piece is used as a fixed structure to be wrapped by the eversion correcting part. The hard material of the thumb correction piece ensures that the position of the eversion correction part cannot be easily deformed due to the extrusion of the thumb or other strong external force, thereby playing a better correction role; the soft material of the eversion correction part can ensure that the eversion thumb can not cause foot pain due to too hard material in the process of propping against the eversion correction part, and plays a role in buffering. The arrangement of the thumb correction piece and the eversion correction part ensures the correction capability of the thumb eversion correction insole, and the thumb eversion correction insole can achieve the correction effect under the condition of ensuring the sufficient comfort of feet.
3. In order to improve the performance of the insole, the soft material of the eversion correcting part is improved, and the soft material is a modified polyurethane material which is obtained by modifying polyurethane by modified rhenium diselenide nano powder. The polyurethane material has very excellent stability, chemical resistance, rebound resilience and mechanical property, the memory cotton in the market is prepared from the polyurethane material and has special rebound resilience, so that the foot experience of a patient with the thumb turned outwards can be greatly improved, but the air permeability of the insole is difficult to be considered for the excellent rebound effect of the insole made of the polyurethane material on the market, the mass propagation and growth of bacteria and fungi in the shoe are easily caused, and the durability and the usability are also insufficient. Therefore, the modified rhenium diselenide nano powder is used for modifying polyurethane, so that the obtained modified polyurethane material has strong mechanical property, air permeability, rebound effect and durability, and the modified polyurethane material also has certain antibacterial and bactericidal effects, so that the growth of bacteria in shoes can be reduced to a great extent, and the foot health of a user is ensured.
4. The modified polyurethane material prepared by the invention is obtained by modifying polyurethane by using modified rhenium diselenide nano powder, and the modified rhenium diselenide nano powder is obtained by modifying rhenium diselenide nano powder by carvacrol. The rhenium diselenide nano powder is a two-dimensional structure material, has a large specific surface area, shows strong mechanical property and flexibility, but has poor dispersibility in polyurethane.
5. In order to improve the performance of the insole, the invention improves the hard material of the thumb correcting sheet, and adopts the modified polylactic acid material. Polylactic acid is a biodegradable material, is a recognized environment-friendly material, has the advantages of good mechanical strength, good thermal stability, solvent resistance, easy processability and the like, but has brittle properties, and when the polylactic acid is used as a fixed structure of an insole, if the polylactic acid is too brittle, the structure of an eversion correcting part is swelled and collapsed, so that the correcting effect is insufficient. The invention adopts the sophocarpine/hydroxyl silicone oil compound to modify the polylactic acid, so that the modified polylactic acid has greatly improved toughness while ensuring the mechanical strength.
6. The modified polylactic acid material is prepared by modifying polylactic acid by adopting a sophocarpine/hydroxyl silicone oil compound, wherein the sophocarpine/hydroxyl silicone oil compound is prepared by carrying out a composite reaction on sophocarpine and hydroxyl silicone oil. The hydroxyl silicone oil has smaller surface tension and higher compression resistance, but when the hydroxyl silicone oil is independently added into the polylactic acid, although the toughness of the polylactic acid is improved, other mechanical properties of the polylactic acid are reduced, so that in order to ensure that the polylactic acid can simultaneously ensure certain hardness and toughness, the invention uses sophocarpine hydrobromide and the hydroxyl silicone oil to carry out composite reaction, modifies the hydroxyl silicone oil and then combines the modified hydroxyl silicone oil with the polylactic acid, thereby greatly improving the toughness of the polylactic acid while ensuring other mechanical properties. In the preparation process of the sophocarpine/hydroxyl silicone oil compound, firstly, castor oil polyoxyethylene ether and sodium dodecyl benzene sulfonate are used for activating hydroxyl silicone oil, then sophocarpine hydrobromide containing sophocarpine is reacted with the activated hydroxyl silicone oil, and the sophocarpine/hydroxyl silicone oil compound is formed through the cross-linking reaction of hydroxyl among hydroxyl silicone oil molecules and halogen (bromine) dissociated from the sophocarpine hydrobromide. In the preparation process of the sophocarpine/hydroxyl silicone oil compound, excessive sophocarpine is added, so that the sophocarpine is mostly grafted to the interior of the hydroxyl silicone oil by stable functional groups, and the minority is adsorbed to the surface of the hydroxyl silicone oil by unstable intermolecular binding force, so that the sophocarpine grafted to the interior of the hydroxyl silicone oil and the hydroxyl silicone oil can jointly and effectively improve the structuring effect between polylactic acid molecules, thereby improving the toughness of the polylactic acid material without causing great influence on the tensile strength; the sophocarpine adsorbed on the surface of the hydroxyl silicone oil can be dissociated in the polylactic acid material after being acted by the external environment, and the sophocarpine has the functions of relieving pain and diminishing inflammation, so that a small amount of dissociated sophocarpine can be separated from the modified polylactic acid material and is transmitted to feet through sweat, the pain of the everted feet in the correction process can be relieved, the process can be continuously carried out along with the continuous shedding of the dissociated sophocarpine, and therefore the modified polylactic acid material prepared by the method also has the functions of relieving pain and diminishing inflammation to a certain extent.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, without inventive effort, further drawings may be derived from the following figures.
FIG. 1 is an exploded view of a hallux valgus orthotic insole of the present invention;
fig. 2 is a front view of a hallux valgus correction insole of the present invention.
Reference numerals: the insole comprises an insole body 1, an eversion correcting part 2, a thumb correcting sheet 3, an arch support pad 4, a vibration absorbing pad 5, an antiskid bulge 6 and a thumb eversion correcting insole 100.
Detailed Description
The invention is further described with reference to the following examples.
Example 1
A hallux valgus correction insole 100 comprises an insole main body 1, wherein the insole main body 1 is provided with a contour curved surface matched with feet of a human body; an eversion correction part 2 is arranged at the position, right opposite to the inner side of the thumb of the foot, of the front part of the insole body 1, and the eversion correction part 2 protrudes out of the upper surface of the insole body 1 and extends along the length direction of the insole body 1; a thumb correction piece 3 is arranged below the eversion correction part 2, the thumb correction piece 3 is embedded in the eversion correction part 2 in an interference manner from the lower part of the insole body 1, and the shape of the thumb correction piece 3 is matched with that of the eversion correction part 2; wherein, the thumb correction piece 3 is made of hard material, and the eversion correction part 2 is made of soft material.
The insole body 1 is made of the soft material.
The hallux valgus correcting insole 100 also comprises an arch support pad 4, wherein the arch support pad 4 is fixed on the lower surface of the insole body 1, the arch support pad 4 is opposite to the arch of the human body, and the arch support pad 4 is made of hard materials.
The hallux valgus rectification insole 100 further comprises a shock absorption pad 5, wherein the shock absorption pad 5 is fixed on the lower surface of the insole main body 1, the shock absorption pad 5 is opposite to the heel of a human body, and the shock absorption pad 5 is made of soft materials.
The upper surface of the insole body 1 is punched with a plurality of nonslip protrusions 6, and the height of the nonslip protrusions 6 is smaller than that of the eversion correcting portion 2.
The soft material is a modified polyurethane material, and the modified polyurethane material is obtained by modifying polyurethane with modified rhenium diselenide nano powder.
The preparation method of the modified rhenium diselenide nano powder comprises the following steps:
s1, weighing rhenium diselenide nano powder, adding the rhenium diselenide nano powder into deionized water, adding N- (beta-aminoethyl) -gamma-aminopropyl methyl dimethoxysilane, and performing ultrasonic dispersion uniformly to obtain a rhenium diselenide nano powder mixed solution; weighing carvacrol, adding the carvacrol into N, N-dimethylformamide, and stirring until the carvacrol is completely dissolved to obtain a carvacrol solution;
wherein the mass ratio of rhenium diselenide nano powder to N- (beta-aminoethyl) -gamma-aminopropylmethyldimethoxysilane to deionized water is 1:0.02:15, and the mass ratio of carvacrol to N, N-dimethylformamide is 1: 12;
s2, placing the rhenium diselenide nano powder mixed solution in a water bath at 40-60 ℃, dropwise adding a carvacrol solution while stirring at a stirring speed of 500-700 rpm, continuously stirring at a stirring speed of 300-500 rpm for 5-10 hours after dropwise adding, filtering while hot, collecting a solid product, washing the collected solid product for 3-5 times by using 50% ethanol by mass fraction, and placing the washed solid product in drying equipment to dry to constant weight to obtain modified rhenium diselenide nano powder;
the dripping speed of the carvacrol solution is 20-30 drops/min, and the mass ratio of the carvacrol solution to the rhenium diselenide nano powder mixed solution is 1: 4.2.
The preparation method of the modified polyurethane material comprises the following steps:
p1, respectively weighing polycarbonate diol and isophorone diisocyanate, adding the polycarbonate diol and isophorone diisocyanate into a reaction container, uniformly stirring, then adding N, N-dimethyl cyclohexylamine, stirring and reacting for 0.2-0.6 h at the temperature of 45-55 ℃, then heating to 70-90 ℃, continuing to react for 3.5-6.5 h, then dropwise adding 1, 2-propylene glycol, continuing to react for 2-3 h, and cooling to 45-55 ℃ to obtain a prepolymerization reaction solution;
wherein the mass ratio of polycarbonate diol, isophorone diisocyanate, N-dimethyl cyclohexylamine and 1, 2-propylene glycol is 1:1:0.08: 0.2;
p2, adding the modified rhenium diselenide nano powder into acetone, adding sodium dodecyl benzene sulfonate, dispersing uniformly to obtain a modified rhenium diselenide nano powder mixed solution, slowly dropwise adding the modified rhenium diselenide nano powder mixed solution into a prepolymerization reaction solution, continuously stirring while dropwise adding, stirring and reacting at 45-55 ℃ after dropwise adding is finished, gradually volatilizing the acetone to gradually thicken a reaction system, and completely volatilizing the acetone to obtain a mixed prepolymer;
wherein the mass ratio of the modified rhenium diselenide nano powder to the sodium dodecyl benzene sulfonate to the acetone is 1:0.06:8, and the mass ratio of the modified rhenium diselenide nano powder mixed solution to the prepolymerization reaction solution is 1: 4.8;
p3, adding the mixed prepolymer into an internal mixer, carrying out melting treatment for 0.2-0.5 h at 180-220 ℃, adding a foaming agent and a crosslinking agent, carrying out internal mixing treatment for 0.2-0.5 h, introducing into a double-screw extruder, and carrying out extrusion and granulation to obtain the modified polyurethane material;
wherein the mass ratio of the mixed prepolymer to the foaming agent to the cross-linking agent is 1:0.05: 0.008.
The foaming agent is azodicarbonamide, and the crosslinking agent is dicumyl peroxide.
The hard material is a modified polylactic acid material, and the modified polylactic acid material is obtained by compounding sophocarpine/hydroxyl silicone oil compound and polylactic acid.
The preparation method of the sophocarpine/hydroxyl silicone oil compound comprises the following steps:
a. respectively weighing castor oil polyoxyethylene ether and sodium dodecyl benzene sulfonate, adding the castor oil polyoxyethylene ether and the sodium dodecyl benzene sulfonate into deionized water, stirring and dispersing the mixture uniformly, sequentially adding hydroxy silicone oil and N- (beta-aminoethyl) -gamma-aminopropyl methyl dimethoxysilane, dispersing the mixture uniformly again, heating the mixture to 40-50 ℃, and stirring the mixture for 2-4 hours to obtain a hydroxy silicone oil mixed solution;
wherein the mass ratio of the castor oil polyoxyethylene ether to the dodecyl benzene sulfonic acid sodium salt to the hydroxyl silicone oil to the N- (beta-aminoethyl) -gamma-aminopropyl methyl dimethoxy silane is 0.08:0.04:0.7:1: 0.01;
b. weighing sophocarpine hydrobromide, adding the sophocarpine hydrobromide into deionized water, dropwise adding hydrobromic acid with the concentration of 0.1mol/L until the pH of liquid reaches 5.0-6.0, and stirring until solid is completely dissolved to obtain sophocarpine hydrobromide solution;
wherein the mass ratio of the sophocarpine hydrobromide to the deionized water is 1: 15;
c. dropwise adding a sophocarpine hydrobromide solution into a hydroxyl silicone oil mixed solution which is continuously stirred at 40-50 ℃, continuously reacting for 3-8 h after dropwise adding, dropwise adding a sodium hydroxide solution with the concentration of 0.1mol/L until the pH value of the liquid reaches 7.0-8.0, centrifuging to collect solids, washing the collected solids by using pure water until the washing solution is neutral, and drying in a drying device to constant weight to obtain a sophocarpine/hydroxyl silicone oil compound;
wherein the mass ratio of the sophocarpine hydrobromide solution to the hydroxy silicone oil mixed liquid is 1: 2.2.
The preparation method of the modified polylactic acid material comprises the following steps:
(1) weighing polylactic acid, adding the polylactic acid into a high-speed stirrer, heating to a molten state, gradually adding a sophocarpine/hydroxyl silicone oil compound, and stirring and mixing uniformly to obtain a mixed compound product;
(2) and (3) introducing the mixed composite product into a double-screw extruder, and extruding and granulating to obtain the modified polylactic acid material.
In the step (1), the temperature of the mixture is increased to a molten state and is 180-200 ℃.
In the step (1), the mass ratio of the sophocarpine/hydroxyl silicone oil compound to the polylactic acid is 1: 7.
Example 2
A hallux valgus correction insole 100 comprises an insole main body 1, wherein the insole main body 1 is provided with a contour curved surface matched with feet of a human body; an eversion correction part 2 is arranged at the position, right opposite to the inner side of the thumb of the foot, of the front part of the insole body 1, and the eversion correction part 2 protrudes out of the upper surface of the insole body 1 and extends along the length direction of the insole body 1; a thumb correction piece 3 is arranged below the eversion correction part 2, the thumb correction piece 3 is embedded in the eversion correction part 2 in an interference manner from the lower part of the insole body 1, and the shape of the thumb correction piece 3 is matched with that of the eversion correction part 2; wherein, the thumb correction piece 3 is made of hard material, and the eversion correction part 2 is made of soft material.
The insole body 1 is made of the soft material.
The hallux valgus correcting insole 100 further comprises an arch support pad 4, wherein the arch support pad 4 is fixed on the lower surface of the insole body 1, the arch support pad 4 is opposite to the arch of the human body, and the arch support pad 4 is made of hard materials.
The hallux valgus correcting insole 100 further comprises a shock absorption pad 5, wherein the shock absorption pad 5 is fixed on the lower surface of the insole main body 1, the shock absorption pad 5 is opposite to the heel of a human body, and the shock absorption pad 5 is made of soft materials.
The upper surface of the insole body 1 is punched with a plurality of nonslip protrusions 6, and the height of the nonslip protrusions 6 is smaller than that of the eversion correcting portion 2.
The soft material is a modified polyurethane material, and the modified polyurethane material is obtained by modifying polyurethane with modified rhenium diselenide nano powder.
The preparation method of the modified rhenium diselenide nano powder comprises the following steps:
s1, weighing rhenium diselenide nano powder, adding the rhenium diselenide nano powder into deionized water, adding N- (beta-aminoethyl) -gamma-aminopropyl methyl dimethoxysilane, and performing ultrasonic dispersion uniformly to obtain a rhenium diselenide nano powder mixed solution; weighing carvacrol, adding the carvacrol into N, N-dimethylformamide, and stirring until the carvacrol is completely dissolved to obtain a carvacrol solution;
wherein the mass ratio of rhenium diselenide nano powder to N- (beta-aminoethyl) -gamma-aminopropylmethyldimethoxysilane to deionized water is 1:0.01:10, and the mass ratio of carvacrol to N, N-dimethylformamide is 1: 6;
s2, placing the rhenium diselenide nano powder mixed solution in a water bath at 40-60 ℃, dropwise adding a carvacrol solution while stirring at a stirring speed of 500-700 rpm, continuously stirring at a stirring speed of 300-500 rpm for 5-10 hours after dropwise adding, filtering while hot, collecting a solid product, washing the collected solid product for 3-5 times by using 50% ethanol by mass fraction, and placing the washed solid product in drying equipment to dry to constant weight to obtain modified rhenium diselenide nano powder;
the dripping speed of the carvacrol solution is 20-30 drops/min, and the mass ratio of the carvacrol solution to the rhenium diselenide nano powder mixed solution is 1: 2.6.
The preparation method of the modified polyurethane material comprises the following steps:
p1, respectively weighing polycarbonate diol and isophorone diisocyanate, adding the polycarbonate diol and isophorone diisocyanate into a reaction container, uniformly stirring, then adding N, N-dimethyl cyclohexylamine, stirring and reacting for 0.2-0.6 h at the temperature of 45-55 ℃, then heating to 70-90 ℃, continuing to react for 3.5-6.5 h, then dropwise adding 1, 2-propylene glycol, continuing to react for 2-3 h, and cooling to 45-55 ℃ to obtain a prepolymerization reaction solution;
wherein the mass ratio of the polycarbonate diol, the isophorone diisocyanate, the N, N-dimethylcyclohexylamine and the 1, 2-propylene glycol is 1:0.8:0.05: 0.1;
p2, adding the modified rhenium diselenide nano powder into acetone, adding sodium dodecyl benzene sulfonate, dispersing uniformly to obtain a modified rhenium diselenide nano powder mixed solution, slowly dropwise adding the modified rhenium diselenide nano powder mixed solution into a prepolymerization reaction solution, continuously stirring while dropwise adding, stirring and reacting at 45-55 ℃ after dropwise adding is finished, gradually volatilizing the acetone to gradually thicken a reaction system, and completely volatilizing the acetone to obtain a mixed prepolymer;
wherein the mass ratio of the modified rhenium diselenide nano powder to the sodium dodecyl benzene sulfonate to the acetone is 1:0.05:6, and the mass ratio of the modified rhenium diselenide nano powder mixed solution to the prepolymerization reaction solution is 1: 3.6;
p3, adding the mixed prepolymer into an internal mixer, carrying out melting treatment for 0.2-0.5 h at 180-220 ℃, adding a foaming agent and a crosslinking agent, carrying out internal mixing treatment for 0.2-0.5 h, introducing into a double-screw extruder, and carrying out extrusion and granulation to obtain the modified polyurethane material;
wherein the mass ratio of the mixed prepolymer to the foaming agent to the cross-linking agent is 1:0.03: 0.005.
The foaming agent is azodicarbonamide, and the crosslinking agent is dicumyl peroxide.
The hard material is a modified polylactic acid material, and the modified polylactic acid material is obtained by compounding sophocarpine/hydroxyl silicone oil compound and polylactic acid.
The preparation method of the sophocarpine/hydroxyl silicone oil compound comprises the following steps:
a. respectively weighing castor oil polyoxyethylene ether and sodium dodecyl benzene sulfonate, adding the castor oil polyoxyethylene ether and the sodium dodecyl benzene sulfonate into deionized water, stirring and dispersing the mixture uniformly, sequentially adding hydroxy silicone oil and N- (beta-aminoethyl) -gamma-aminopropyl methyl dimethoxysilane, dispersing the mixture uniformly again, heating the mixture to 40-50 ℃, and stirring the mixture for 2-4 hours to obtain a hydroxy silicone oil mixed solution;
wherein the mass ratio of the castor oil polyoxyethylene ether to the dodecyl benzene sulfonic acid sodium salt to the hydroxyl silicone oil to the N- (beta-aminoethyl) -gamma-aminopropyl methyl dimethoxy silane is 0.05:0.02:0.5:1: 0.006;
b. weighing sophocarpine hydrobromide, adding the sophocarpine hydrobromide into deionized water, dropwise adding hydrobromic acid with the concentration of 0.1mol/L until the pH of liquid reaches 5.0-6.0, and stirring until solid is completely dissolved to obtain sophocarpine hydrobromide solution;
wherein the mass ratio of the sophocarpine hydrobromide to the deionized water is 1: 10;
c. dropwise adding a sophocarpine hydrobromide solution into a hydroxyl silicone oil mixed solution which is continuously stirred at 40-50 ℃, continuously reacting for 3-8 h after dropwise adding, dropwise adding a sodium hydroxide solution with the concentration of 0.1mol/L until the pH value of the liquid reaches 7.0-8.0, centrifuging to collect solids, washing the collected solids by using pure water until the washing solution is neutral, and drying in a drying device to constant weight to obtain a sophocarpine/hydroxyl silicone oil compound;
wherein the mass ratio of the sophocarpine hydrobromide solution to the hydroxy silicone oil mixed liquid is 1: 1.5.
The preparation method of the modified polylactic acid material comprises the following steps:
(1) weighing polylactic acid, adding the polylactic acid into a high-speed stirrer, heating to a molten state, gradually adding a sophocarpine/hydroxyl silicone oil compound, and stirring and mixing uniformly to obtain a mixed compound product;
(2) and introducing the mixed composite product into a double-screw extruder, and extruding and granulating to obtain the modified polylactic acid material.
In the step (1), the temperature of the mixture is increased to a molten state and is 180-200 ℃.
In the step (1), the mass ratio of the sophocarpine/hydroxyl silicone oil compound to the polylactic acid is 1:5.
Example 3
A hallux valgus correction insole 100 comprises an insole main body 1, wherein the insole main body 1 is provided with a contour curved surface matched with feet of a human body; an eversion correction part 2 is arranged at the position, right opposite to the inner side of the thumb of the foot, of the front part of the insole body 1, and the eversion correction part 2 protrudes out of the upper surface of the insole body 1 and extends along the length direction of the insole body 1; a thumb correction piece 3 is arranged below the eversion correction part 2, the thumb correction piece 3 is embedded in the eversion correction part 2 in an interference manner from the lower part of the insole body 1, and the shape of the thumb correction piece 3 is matched with that of the eversion correction part 2; wherein, the thumb correction piece 3 is made of hard material, and the eversion correction part 2 is made of soft material.
The insole body 1 is made of the soft material.
The hallux valgus correcting insole 100 further comprises an arch support pad 4, wherein the arch support pad 4 is fixed on the lower surface of the insole body 1, the arch support pad 4 is opposite to the arch of the human body, and the arch support pad 4 is made of hard materials.
The hallux valgus correcting insole 100 further comprises a shock absorption pad 5, wherein the shock absorption pad 5 is fixed on the lower surface of the insole main body 1, the shock absorption pad 5 is opposite to the heel of a human body, and the shock absorption pad 5 is made of soft materials.
The upper surface of the insole body 1 is punched with a plurality of nonslip protrusions 6, and the height of the nonslip protrusions 6 is smaller than that of the eversion correcting portion 2.
The soft material is a modified polyurethane material, and the modified polyurethane material is obtained by modifying polyurethane with modified rhenium diselenide nano powder.
The preparation method of the modified rhenium diselenide nano powder comprises the following steps:
s1, weighing rhenium diselenide nano powder, adding the rhenium diselenide nano powder into deionized water, adding N- (beta-aminoethyl) -gamma-aminopropyl methyldimethoxysilane, and performing ultrasonic dispersion uniformly to obtain a rhenium diselenide nano powder mixed solution; weighing carvacrol, adding the carvacrol into N, N-dimethylformamide, and stirring until the carvacrol is completely dissolved to obtain a carvacrol solution;
wherein the mass ratio of the rhenium diselenide nano powder to the N- (beta-aminoethyl) -gamma-aminopropyl methyldimethoxysilane to the deionized water is 1:0.05:20, and the mass ratio of the carvacrol to the N, N-dimethylformamide is 1: 15;
s2, placing the rhenium diselenide nano powder mixed solution in a water bath at 40-60 ℃, dropwise adding a carvacrol solution while stirring at a stirring speed of 500-700 rpm, continuously stirring at a stirring speed of 300-500 rpm for 5-10 hours after dropwise adding, filtering while hot, collecting a solid product, washing the collected solid product for 3-5 times by using 50% ethanol by mass fraction, and placing the washed solid product in drying equipment to dry to constant weight to obtain modified rhenium diselenide nano powder;
the dripping speed of the carvacrol solution is 20-30 drops/min, and the mass ratio of the carvacrol solution to the rhenium diselenide nano powder mixed solution is 1: 5.8.
The preparation method of the modified polyurethane material comprises the following steps:
p1, respectively weighing polycarbonate diol and isophorone diisocyanate, adding the polycarbonate diol and isophorone diisocyanate into a reaction container, uniformly stirring, then adding N, N-dimethyl cyclohexylamine, stirring and reacting for 0.2-0.6 h at the temperature of 45-55 ℃, then heating to 70-90 ℃, continuing to react for 3.5-6.5 h, then dropwise adding 1, 2-propylene glycol, continuing to react for 2-3 h, and cooling to 45-55 ℃ to obtain a prepolymerization reaction liquid;
wherein the mass ratio of the polycarbonate diol, the isophorone diisocyanate, the N, N-dimethylcyclohexylamine and the 1, 2-propylene glycol is 1:1.2:0.1: 0.3;
p2, adding the modified rhenium diselenide nano powder into acetone, adding sodium dodecyl benzene sulfonate, dispersing to be uniform to obtain a modified rhenium diselenide nano powder mixed solution, slowly dropwise adding the modified rhenium diselenide nano powder mixed solution into a prepolymerization reaction solution, continuously stirring while dropwise adding, stirring to react at 45-55 ℃ after dropwise adding is finished, gradually thickening a reaction system along with gradual volatilization of the acetone, and obtaining a mixed prepolymer after the acetone is completely volatilized;
wherein the mass ratio of the modified rhenium diselenide nano powder to the sodium dodecyl benzene sulfonate to the acetone is 1:0.08:10, and the mass ratio of the modified rhenium diselenide nano powder mixed solution to the prepolymerization reaction solution is 1: 5.4;
p3, adding the mixed prepolymer into an internal mixer, carrying out melting treatment for 0.2-0.5 h at 180-220 ℃, adding a foaming agent and a crosslinking agent, carrying out internal mixing treatment for 0.2-0.5 h, introducing into a double-screw extruder, and carrying out extrusion and granulation to obtain the modified polyurethane material;
wherein the mass ratio of the mixed prepolymer to the foaming agent to the cross-linking agent is 1:0.06: 0.01.
The foaming agent is azodicarbonamide, and the crosslinking agent is dicumyl peroxide.
The hard material is a modified polylactic acid material, and the modified polylactic acid material is obtained by compounding sophocarpine/hydroxyl silicone oil compound and polylactic acid.
The preparation method of the sophocarpine/hydroxyl silicone oil compound comprises the following steps:
a. respectively weighing castor oil polyoxyethylene ether and sodium dodecyl benzene sulfonate, adding the castor oil polyoxyethylene ether and the sodium dodecyl benzene sulfonate into deionized water, stirring and dispersing the mixture uniformly, sequentially adding hydroxy silicone oil and N- (beta-aminoethyl) -gamma-aminopropyl methyl dimethoxysilane, dispersing the mixture uniformly again, heating the mixture to 40-50 ℃, and stirring the mixture for 2-4 hours to obtain a hydroxy silicone oil mixed solution;
wherein the mass ratio of the castor oil polyoxyethylene ether to the dodecyl benzene sulfonic acid sodium salt to the hydroxyl silicone oil to the N- (beta-aminoethyl) -gamma-aminopropyl methyl dimethoxy silane is 0.1:0.06:0.8:1: 0.012;
b. weighing sophocarpine hydrobromide, adding the sophocarpine hydrobromide into deionized water, dropwise adding hydrobromic acid with the concentration of 0.1mol/L until the pH of liquid reaches 5.0-6.0, and stirring until solid is completely dissolved to obtain sophocarpine hydrobromide solution;
wherein the mass ratio of the sophocarpine hydrobromide to the deionized water is 1: 20;
c. dropwise adding a sophocarpine hydrobromide solution into a hydroxyl silicone oil mixed solution which is continuously stirred at 40-50 ℃, continuously reacting for 3-8 h after dropwise adding, dropwise adding a sodium hydroxide solution with the concentration of 0.1mol/L until the pH value of the liquid reaches 7.0-8.0, centrifuging to collect solids, washing the collected solids by using pure water until the washing solution is neutral, and drying in a drying device to constant weight to obtain a sophocarpine/hydroxyl silicone oil compound;
wherein the mass ratio of the sophocarpine hydrobromide solution to the hydroxy silicone oil mixed liquid is 1: 2.8.
The preparation method of the modified polylactic acid material comprises the following steps:
(1) weighing polylactic acid, adding the polylactic acid into a high-speed stirrer, heating to a molten state, gradually adding a sophocarpine/hydroxyl silicone oil compound, and stirring and mixing uniformly to obtain a mixed compound product;
(2) and introducing the mixed composite product into a double-screw extruder, and extruding and granulating to obtain the modified polylactic acid material.
In the step (1), the temperature of the mixture is increased to a molten state and is 180-200 ℃.
In the step (1), the mass ratio of the sophocarpine/hydroxyl silicone oil compound to the polylactic acid is 1: 10.
Comparative example 1
The soft material is a modified polyurethane material, and the modified polyurethane material is obtained by modifying polyurethane with rhenium diselenide nano powder.
The preparation method of the modified polyurethane material comprises the following steps:
p1, respectively weighing polycarbonate diol and isophorone diisocyanate, adding the polycarbonate diol and isophorone diisocyanate into a reaction container, uniformly stirring, then adding N, N-dimethyl cyclohexylamine, stirring and reacting for 0.2-0.6 h at the temperature of 45-55 ℃, then heating to 70-90 ℃, continuing to react for 3.5-6.5 h, then dropwise adding 1, 2-propylene glycol, continuing to react for 2-3 h, and cooling to 45-55 ℃ to obtain a prepolymerization reaction solution;
wherein the mass ratio of polycarbonate diol, isophorone diisocyanate, N-dimethylcyclohexylamine to 1, 2-propylene glycol is 1:1:0.08: 0.2;
p2, adding the rhenium diselenide nano powder into acetone, adding sodium dodecyl benzene sulfonate, dispersing uniformly to obtain a rhenium diselenide nano powder mixed solution, slowly dropwise adding the rhenium diselenide nano powder mixed solution into the prepolymerization reaction solution, continuously stirring while dropwise adding, stirring and reacting at the temperature of 45-55 ℃ after dropwise adding is finished, gradually volatilizing the acetone to gradually make a reaction system become sticky, and obtaining a mixed prepolymer after the acetone is completely volatilized;
wherein the mass ratio of the rhenium diselenide nano powder to the sodium dodecyl benzene sulfonate to the acetone is 1:0.06:8, and the mass ratio of the mixed liquid of the rhenium diselenide nano powder to the prepolymerization reaction liquid is 1: 4.8;
p3, adding the mixed prepolymer into an internal mixer, carrying out melting treatment for 0.2-0.5 h at 180-220 ℃, adding a foaming agent and a crosslinking agent, carrying out internal mixing treatment for 0.2-0.5 h, introducing into a double-screw extruder, and carrying out extrusion and granulation to obtain the modified polyurethane material;
wherein the mass ratio of the mixed prepolymer to the foaming agent to the cross-linking agent is 1:0.05: 0.008.
The foaming agent is azodicarbonamide, and the crosslinking agent is dicumyl peroxide.
A hard material is a modified polylactic acid material, and the modified polylactic acid material is obtained by compounding hydroxy silicone oil and polylactic acid.
The preparation method of the modified polylactic acid material comprises the following steps:
(1) weighing polylactic acid, adding the polylactic acid into a high-speed stirrer, heating to a molten state, gradually adding hydroxyl silicone oil, stirring and mixing uniformly to obtain a mixed composite product;
(2) and introducing the mixed composite product into a double-screw extruder, and extruding and granulating to obtain the modified polylactic acid material.
In the step (1), the temperature of the mixture is increased to a molten state and is 180-200 ℃.
In the step (1), the mass ratio of the hydroxyl silicone oil compound to the polylactic acid is 1: 7.
Comparative example 2
Soft materials: commercially available polyurethanes; hard material: commercially available polylactic acid.
In order to more clearly illustrate the present invention, the soft and hard materials prepared in examples 1 to 3 of the present invention and comparative example 1 were compared with the commercially available polyurethane and polylactic acid in comparative example 2 in terms of the performance test, and the results are shown in tables 1 and 2.
Wherein, in Table 1, the mechanical properties are detected by adopting the standard of GB/T6344-; the amount of air permeability, compression set/% (75%) were measured according to the standard ASTM D3574; in Table 2, the mechanical properties were measured using the standards of ASTM D638 and ASTM D790.
TABLE 1 comparison of the Properties of different Soft materials
| Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | |
| Rebound resilience/%) | 42 | 37 | 41 | 28 | 36 |
| hardness/Shore C | 31 | 26 | 28 | 37 | 23 |
| Tensile strength/MPa | 0.83 | 0.79 | 0.86 | 0.57 | 0.55 |
| Elongation at break/% | 138 | 132 | 129 | 96 | 114 |
| Tear Strength/(N/cm) | 3.8 | 3.8 | 3.9 | 3.0 | 2.6 |
| Compression set/% (75%) | 3.2 | 3.8 | 2.7 | 11.2 | 16.8 |
| Air permeability/(dm)3/s) | 4.5 | 4.1 | 4.6 | 2.8 | 2.1 |
TABLE 2 comparison of Performance measurements for different hard materials
| Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | |
| Tensile strength/MPa | 48.3 | 49.7 | 47.5 | 36.5 | 53.2 |
| Elongation at break/% | 32.5 | 30.6 | 28.3 | 66.2 | 8.5 |
| Impact Strength/(KJ/m)2) | 27.9 | 28.2 | 28.5 | 30.7 | 4.8 |
As can be seen from Table 1, the soft materials prepared in examples 1 to 3 of the present invention have excellent performances in terms of resilience, hardness, tensile strength, elongation at break and tear strength, which indicates that the soft materials prepared in examples 1 to 3 of the present invention have strong mechanical properties and resilience, and the compression set rate is greatly reduced, which is equivalent to a reduction by more than 5 times, compared with the existing commercially available polyurethane, which indicates that the soft materials prepared in examples 1 to 3 of the present invention have good durability and usability, and further, the air permeability of the soft materials prepared in examples 1 to 3 of the present invention can reach 4.dm 6 3/s, which is more than 2 times that of the existing polyurethane, which indicates that the air permeability of the soft materials prepared in examples 1 to 3 of the present invention is better.
As can be seen from table 2, in comparative example 1, although the impact strength was slightly higher, the tensile strength was far from sufficient. The hard material prepared in the embodiments 1-3 of the invention can greatly improve the impact strength under the condition of keeping higher tensile strength, and can achieve perfect combination of strength and toughness, thereby being more suitable for the use conditions of the hard material in the invention.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (8)
1. The hallux valgus correcting insole is characterized by comprising an insole main body, wherein the insole main body is provided with a contour curved surface matched with the foot of a human body; the front part of the insole main body is provided with an eversion correcting part facing the inner side of the thumb of the foot, and the eversion correcting part protrudes out of the upper surface of the insole main body and extends along the length direction of the insole main body; a thumb correcting piece is arranged below the eversion correcting part, the thumb correcting piece is embedded in the eversion correcting part in an interference manner from the lower part of the insole body, and the shape of the thumb correcting piece is matched with that of the eversion correcting part; wherein, the thumb correcting piece is made of hard material, and the eversion correcting part is made of soft material;
the soft material is a modified polyurethane material, and the modified polyurethane material is obtained by modifying polyurethane by modified rhenium diselenide nano powder;
the preparation method of the modified rhenium diselenide nano powder comprises the following steps:
s1, weighing rhenium diselenide nano powder, adding the rhenium diselenide nano powder into deionized water, adding N- (beta-aminoethyl) -gamma-aminopropyl methyldimethoxysilane, and performing ultrasonic dispersion uniformly to obtain a rhenium diselenide nano powder mixed solution; weighing carvacrol, adding the carvacrol into N, N-dimethylformamide, and stirring until the carvacrol is completely dissolved to obtain a carvacrol solution;
wherein the mass ratio of rhenium diselenide nano powder to N- (beta-aminoethyl) -gamma-aminopropylmethyldimethoxysilane to deionized water is 1: 0.01-0.05: 10-20, and the mass ratio of carvacrol to N, N-dimethylformamide is 1: 6-15;
s2, placing the rhenium diselenide nano powder mixed solution in a water bath at 40-60 ℃, dropwise adding a carvacrol solution while stirring at a stirring speed of 500-700 rpm, continuously stirring at a stirring speed of 300-500 rpm for 5-10 hours after dropwise adding, filtering while hot, collecting a solid product, washing the collected solid product for 3-5 times by using 50% ethanol by mass fraction, and placing the washed solid product in drying equipment to dry to constant weight to obtain modified rhenium diselenide nano powder;
the dripping speed of the carvacrol solution is 20-30 drops/min, and the mass ratio of the carvacrol solution to the rhenium diselenide nano powder mixed solution is 1: 2.6-5.8.
2. The hallux valgus orthotic insole of claim 1, further comprising an arch support pad secured to the lower surface of the insole body and facing the arch of the human body, the arch support pad being made of the hard material.
3. The hallux valgus correction insole according to claim 1, further comprising a shock absorbing pad fixed to a lower surface of the insole body and facing the heel of the human body, wherein the shock absorbing pad is made of the soft material.
4. The shoe pad for hallux valgus correction according to claim 1, wherein a plurality of anti-slip projections having a height smaller than that of the valgus correction portion are punched on the upper surface of the shoe pad body.
5. The hallux valgus correction insole according to claim 1, wherein the preparation method of the modified polyurethane material comprises the following steps:
p1, respectively weighing polycarbonate diol and isophorone diisocyanate, adding the polycarbonate diol and isophorone diisocyanate into a reaction container, uniformly stirring, then adding N, N-dimethyl cyclohexylamine, stirring and reacting for 0.2-0.6 h at the temperature of 45-55 ℃, then heating to 70-90 ℃, continuing to react for 3.5-6.5 h, then dropwise adding 1, 2-propylene glycol, continuing to react for 2-3 h, and cooling to 45-55 ℃ to obtain a prepolymerization reaction liquid;
wherein the mass ratio of the polycarbonate diol, the isophorone diisocyanate, the N, N-dimethylcyclohexylamine and the 1, 2-propylene glycol is 1: 0.8-1.2: 0.05-0.1: 0.1-0.3;
p2, adding the modified rhenium diselenide nano powder into acetone, adding sodium dodecyl benzene sulfonate, dispersing uniformly to obtain a modified rhenium diselenide nano powder mixed solution, slowly dropwise adding the modified rhenium diselenide nano powder mixed solution into a prepolymerization reaction solution, continuously stirring while dropwise adding, stirring and reacting at 45-55 ℃ after dropwise adding is finished, gradually volatilizing the acetone to gradually thicken a reaction system, and completely volatilizing the acetone to obtain a mixed prepolymer;
wherein the mass ratio of the modified rhenium diselenide nano powder to the sodium dodecyl benzene sulfonate to the acetone is 1: 0.05-0.08: 6-10, and the mass ratio of the modified rhenium diselenide nano powder mixed solution to the prepolymerization reaction solution is 1: 3.6-5.4;
p3, adding the mixed prepolymer into an internal mixer, carrying out melting treatment for 0.2-0.5 h at 180-220 ℃, adding a foaming agent and a crosslinking agent, carrying out internal mixing treatment for 0.2-0.5 h, introducing into a double-screw extruder, and carrying out extrusion and granulation to obtain the modified polyurethane material;
wherein the mass ratio of the mixed prepolymer to the foaming agent to the crosslinking agent is 1: 0.03-0.06: 0.005-0.01.
6. The hallux valgus rectification insole according to claim 1, wherein the hard material is a modified polylactic acid material, and the modified polylactic acid material is obtained by compounding sophocarpine/hydroxy silicone oil compound with polylactic acid.
7. The hallux valgus rectification insole according to claim 6, wherein the sophocarpine/hydroxy silicone oil complex is prepared by the following steps:
a. respectively weighing castor oil polyoxyethylene ether and sodium dodecyl benzene sulfonate, adding the castor oil polyoxyethylene ether and the sodium dodecyl benzene sulfonate into deionized water, stirring and dispersing the mixture uniformly, sequentially adding hydroxy silicone oil and N- (beta-aminoethyl) -gamma-aminopropyl methyl dimethoxysilane, dispersing the mixture uniformly again, heating the mixture to 40-50 ℃, and stirring the mixture for 2-4 hours to obtain a hydroxy silicone oil mixed solution;
wherein the mass ratio of the castor oil polyoxyethylene ether to the dodecyl benzene sulfonic acid sodium salt to the hydroxyl silicone oil to the N- (beta-aminoethyl) -gamma-aminopropyl methyl dimethoxy silane is 0.05-0.1: 0.02-0.06: 0.5-0.8: 1: 0.006-0.012;
b. weighing sophocarpine hydrobromide, adding the sophocarpine hydrobromide into deionized water, dropwise adding hydrobromic acid with the concentration of 0.1mol/L until the pH of liquid reaches 5.0-6.0, and stirring until solid is completely dissolved to obtain sophocarpine hydrobromide solution;
wherein the mass ratio of the sophocarpine hydrobromide to the deionized water is 1: 10-20;
c. dropwise adding a sophocarpine hydrobromide solution into a hydroxyl silicone oil mixed solution which is continuously stirred at 40-50 ℃, continuously reacting for 3-8 h after dropwise adding, dropwise adding a sodium hydroxide solution with the concentration of 0.1mol/L until the pH value of the liquid reaches 7.0-8.0, centrifuging to collect solids, washing the collected solids by using pure water until the washing solution is neutral, and drying in a drying device to constant weight to obtain a sophocarpine/hydroxyl silicone oil compound;
wherein the mass ratio of the sophocarpine hydrobromide solution to the hydroxy silicone oil mixed liquid is 1: 1.5-2.8.
8. The hallux valgus correction insole according to claim 6, wherein the modified polylactic acid material is prepared by the following steps:
(1) weighing the polylactic acid, adding the polylactic acid into a high-speed stirrer, heating to a molten state, gradually adding the sophocarpine/hydroxyl silicone oil compound, and stirring and mixing uniformly to obtain a mixed compound product;
wherein the temperature for heating to a molten state is 180-200 ℃; the mass ratio of the sophocarpine/hydroxyl silicone oil compound to the polylactic acid is 1: 5-10;
(2) and introducing the mixed composite product into a double-screw extruder, and extruding and granulating to obtain the modified polylactic acid material.
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