An alloy material with enhanced barrier absorption
By optimizing the proportions and preparation process of titanium powder, zinc powder, copper powder, magnesium powder, and silver powder, and combining it with surface treatments of porous carbon layers, nano-hydroxyapatite, and bioactive glass, the problems of uniformity of the alloy material's structure and biocompatibility were solved, improving mechanical properties and barrier absorption performance, and enhancing skin condition.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-22
- Publication Date
- 2026-03-10
AI Technical Summary
Existing alloy materials suffer from agglomeration of reinforcing phase particles, insufficient dispersion of structural components, and large differences in melting points during the preparation process, resulting in poor microstructure uniformity, which affects mechanical properties and barrier absorption performance, and also has poor biocompatibility.
By optimizing the proportions and preparation process of titanium powder, zinc powder, copper powder, magnesium powder, and silver powder, an alloy material was prepared. A porous carbon layer was synthesized on the surface of modified titanium powder, and a gel layer was formed on the surface of the alloy material. Nano-hydroxyapatite and bioactive glass were added to optimize the composition and process of the composite gel.
It improves the mechanical properties and barrier absorption properties of alloy materials, improves skin condition, enhances biocompatibility, promotes skin repair and anti-wrinkle effects, and reduces adverse reactions.
Abstract
Description
Technical Field
[0001] This invention relates to the field of metal alloy materials technology, specifically to an alloy material that enhances barrier absorption. Background Technology
[0002] In the field of biological tissue repair and skin care, the core needs are to enhance the skin's self-healing ability, improve skin radiance, and reduce wrinkles. Existing technologies for these needs are mostly based on biological extracts and chemically synthesized products, which have the following shortcomings: limited functionality, poor stability, and limited biocompatibility, thus restricting their widespread application.
[0003] Existing alloy materials mostly focus on mechanical strength and corrosion resistance, with very few designed for "enhancing bio-barrier absorption" and "improving skin condition." There is a lack of technical solutions that synergistically combine five metals—zinc, copper, titanium, magnesium, and silver—to achieve the aforementioned composite functions. Therefore, developing an alloy material that combines stable performance, excellent biocompatibility, and the ability to simultaneously and efficiently enhance barrier absorption and improve skin condition has become an urgent problem to be solved in this field.
[0004] By optimizing the proportions and preparation process of titanium powder, zinc powder, copper powder, magnesium powder, and silver powder, alloy materials were prepared, exhibiting good mechanical properties and barrier absorption performance. However, during the preparation process, the strengthening phase particles agglomerated, the structural components were not sufficiently dispersed, and the melting points of titanium powder, zinc powder, copper powder, magnesium powder, and silver powder differed significantly, resulting in poor uniformity of the prepared alloy material's structure, which affected its mechanical properties and barrier absorption performance. In addition, the alloy material's surface exhibited high inertia and poor compatibility, which also affected its barrier absorption capacity. Summary of the Invention
[0005] This invention provides an alloy material that enhances barrier absorption, solving the problem that the large differences in melting points of titanium powder, zinc powder, copper powder, magnesium powder, and silver powder lead to poor uniformity of the microstructure of the prepared alloy material, which affects the mechanical properties and barrier absorption performance of the alloy material.
[0006] The technical solution of the present invention:
[0007] A method for preparing an alloy material with enhanced barrier absorption includes the following preparation steps:
[0008] S1. Mix the modified titanium powder, zinc powder and copper powder evenly, and melt them at 1000-1100℃ for 30-60 minutes to obtain the basic melt. Add magnesium powder and silver powder to the basic melt and stir at 970-1050℃ for 20-40 minutes to obtain the alloy melt.
[0009] S2. Place the molten alloy in a pre-made mold, cast it, cool it to room temperature, demold it, and obtain an alloy ingot;
[0010] S3. After annealing and cold rolling, the alloy ingot is immersed in a surface treatment agent, stirred at 40-50℃ for 20-30 minutes, removed, and dried to obtain the alloy material.
[0011] Among them, the modified titanium powder is obtained by synthesizing a porous carbon layer on the surface of titanium powder and then reacting it with calcium hydroxide and phosphoric acid;
[0012] The surface treatment agent is obtained by mixing composite gel and deionized water in a mass ratio of (5-10):90;
[0013] The composite gel is made by surface modification of bioactive glass with hyaluronic acid, followed by reaction with polyvinyl alcohol and carboxymethyl cellulose.
[0014] Further, in step S1, the mass ratio of modified titanium powder, zinc powder, copper powder, magnesium powder, and silver powder is (1-1.5):(4.5-6):(1.5-2.5):(0.5-1.2):(0.1-0.5).
[0015] Furthermore, in step S2, the casting pressure is 20-30 MPa.
[0016] Furthermore, in step S3, the annealing temperature is 300-400℃ and the annealing time is 2-4h.
[0017] Furthermore, in step S3, the cold rolling pressure is 300-350 MPa.
[0018] Furthermore, the modified titanium powder is prepared by the following steps:
[0019] A1. Add titanium powder and tannic acid to ethanol, stir evenly, add glucose, stir evenly, filter, wash, dry, place in a tube furnace, add potassium hydroxide solution, purge with nitrogen, carbonize, cool to room temperature, take out, wash, dry, to obtain titanium powder loaded with porous carbon layer.
[0020] A2. Add calcium hydroxide to deionized water and stir until completely dissolved. Add titanium powder loaded with porous carbon layer and stir evenly. Add phosphoric acid and continue stirring. Then carry out hydrothermal reaction, cool to room temperature, filter, wash and dry to obtain modified titanium powder.
[0021] Furthermore, in the A1 reaction process described above, tannic acid acts as a linker, allowing glucose to be coated onto the surface of titanium powder via citric acid. After high-temperature carbonization, the glucose decomposes upon heating to form a dense carbon layer. Potassium hydroxide solution acts as an activator, enabling the formation of channels on the surface of the dense carbon layer, thereby achieving the synthesis of a porous carbon layer on the surface of titanium powder and obtaining titanium powder loaded with a porous carbon layer.
[0022] Furthermore, during the A2 reaction process described above, the surface of the titanium powder supported by the porous carbon layer contains a large number of porous structures, which have good adsorption properties. It can adsorb calcium ions from calcium hydroxide onto the surface of the titanium powder supported by the porous carbon layer, and the calcium ions combine with phosphate ions to form calcium phosphate complexes. After hydrothermal treatment, the calcium phosphate complexes crystallize to form hydroxyapatite, thereby achieving the synthesis of hydroxyapatite with a size of 60 nm in the pores of the porous carbon layer on the surface of the titanium powder, thus obtaining modified titanium powder.
[0023] Further, in step A1, the mass ratio of titanium powder, tannic acid, ethanol, glucose and potassium hydroxide solution is (2-3):(0.5-1):(100-120):(2-2.5):(2-3).
[0024] Further, in step A2, the mass ratio of calcium hydroxide, deionized water, titanium powder supported on porous carbon layer and phosphoric acid is (1.5-2):(100-110):(2.5-3):(1-1.2).
[0025] Furthermore, the composite gel is prepared by the following steps:
[0026] B1. Hyaluronic acid is added to deionized water and stirred until viscous. Bioactive glass is added and stirred evenly. After filtration, washing, and drying, hyaluronic acid-modified bioactive glass is obtained.
[0027] B2. Carboxymethyl cellulose and polyvinyl alcohol were added to ethanol, and after ultrasonic treatment, epichlorohydrin and hyaluronic acid-modified bioactive glass were added. The mixture was stirred to form a gel, and after filtration and washing, a composite gel was obtained.
[0028] Furthermore, in the B1 reaction process described above, the surface of the hyaluronic acid is modified with bioactive glass. The carboxyl groups contained in the hyaluronic acid can combine with the cations in the bioactive glass, so that the hyaluronic acid is coated on the surface of the bioactive glass, resulting in hyaluronic acid-modified bioactive glass.
[0029] Furthermore, in the B2 reaction process described above, the hyaluronic acid-modified bioactive glass is mixed and reacted with polyvinyl alcohol and carboxymethyl cellulose. Polyvinyl alcohol and carboxymethyl cellulose are bonded by hydrogen bonds and form a cellulose gel under the action of the crosslinking agent epichlorohydrin. During the gel formation process, the carboxyl groups contained in the hyaluronic acid-modified bioactive glass can also participate in the gel reaction, so that the hyaluronic acid-modified bioactive glass is embedded in the cellulose gel to form a composite gel.
[0030] Further, in step B1, the mass ratio of hyaluronic acid, deionized water and bioactive glass is (2-3):(40-50):(3-3.5).
[0031] Further, in step B2, the mass ratio of carboxymethyl cellulose, polyvinyl alcohol, ethanol, epichlorohydrin and hyaluronic acid-modified bioactive glass is (0.8-1.2):(0.5-1):(90-100):(1-1.2):(1.5-2).
[0032] The present invention has the following beneficial effects:
[0033] (1) In the technical solution of the present invention, a porous carbon layer is synthesized on the surface of titanium powder. On the one hand, the rich porosity of the porous carbon layer endows the titanium powder with excellent adsorption performance and porous structure. As a site for the synthesis of hydroxyapatite, it is beneficial to form hydroxyapatite on the surface of titanium powder. When added to the alloy material, it improves the biocompatibility of the alloy material and thus enhances the barrier absorption performance of the alloy material and improves the skin condition. On the other hand, the synthesized porous carbon layer provides a large amount of carbon elements, which can form a carbide reinforcing phase with zinc powder, copper powder, magnesium powder and silver powder and disperse in the alloy material matrix to form a dense alloy material, improve the mechanical strength of the alloy material, and can slowly release metal elements such as zinc, copper, magnesium and silver to improve the skin condition. In addition, by adding a porous carbon layer to form a carbide reinforcing phase with metals, it is possible to avoid the different melting points of zinc, copper, magnesium and silver metal powders, which would result in poor performance of the alloy material and affect the barrier absorption performance of the alloy material.
[0034] (2) In the technical solution of the present invention, nano-hydroxyapatite is synthesized in the pores of the porous carbon layer on the surface of titanium powder. On the one hand, the synthesized hydroxyapatite has good biocompatibility, which can improve the compatibility of the alloy material, so that the alloy material can be better absorbed by the skin and improve the skin condition. Moreover, the calcium ions released by hydroxyapatite along with the degradation of the alloy material can promote skin repair, increase the density and elasticity of the dermis, and enhance the skin barrier and moisturization. On the other hand, the synthesis of nano-hydroxyapatite in the pores of the porous carbon layer on the surface of titanium powder can improve the dispersibility of nano-hydroxyapatite in the alloy material, avoid the agglomeration of nano-hydroxyapatite, and affect the barrier absorption performance of the alloy material. Furthermore, the addition of nano-hydroxyapatite to the alloy material can improve the mechanical properties of the alloy material.
[0035] (3) In the technical solution of the present invention, hyaluronic acid is coated on the surface of bioactive glass. On the one hand, after bioactive glass degrades in vivo, it releases silicon, calcium and phosphorus elements, which can stimulate skin fibroblasts to produce more collagen, and has the effects of anti-wrinkle and promoting skin repair. Hyaluronic acid itself has moisturizing, anti-inflammatory and repair-promoting properties. Together with bioactive glass, it is coated on the surface of the alloy material to form an alloy material with good moisturizing, anti-wrinkle and repair effects, and has good barrier absorption performance. On the other hand, hyaluronic acid is coated on the surface of bioactive glass to give it active functional groups, which is conducive to the embedding of hyaluronic acid and bioactive glass into cellulose gel, and avoids the aggregation of bioactive glass on the surface of the alloy material, which affects the barrier absorption performance of the alloy material.
[0036] (4) In the technical solution of the present invention, polyvinyl alcohol and carboxymethyl cellulose are bonded by hydrogen bonds and form a cellulose gel under the action of crosslinking agent epichlorohydrin. The bioactive glass modified by hyaluronic acid is embedded in the cellulose gel to form a composite gel. The gel formed by polyvinyl alcohol and carboxymethyl cellulose as the matrix contains a large number of oxygen-containing functional groups and has good bonding force with the alloy material, thereby forming a gel layer on the surface of the alloy material, improving the surface bonding force of the alloy material, and enhancing the barrier absorption performance of the alloy material.
[0037] (5) In the technical solution of the present invention, by optimizing the ratio and preparation process of modified titanium powder, zinc powder, copper powder, magnesium powder and silver powder, an alloy material is prepared, and a gel layer is formed on the surface of the alloy material, which has good barrier absorption performance and can improve skin condition; among them, zinc and copper synergistically promote the repair of biological tissues by zinc finger protease and ceruloplasmin, promote epidermal cell regeneration, mucosal barrier repair and wound healing, silver ions have antibacterial effect and can reduce the risk of infection after barrier damage, titanium and magnesium enhance the biocompatibility of the alloy and have good barrier absorption performance;
[0038] Zinc and copper promote skin cell metabolism, reduce melanin deposition, and improve skin brightness. Titanium and magnesium work synergistically to enhance collagen synthesis, inhibit elastase activity, and reduce wrinkles. Furthermore, the alloy material has excellent stability and good compatibility with the stratum corneum of the skin, with no adverse reactions such as redness or stinging, thus significantly improving skin condition. Detailed Implementation
[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0040] The raw materials used in the embodiments of this invention are shown below, and all reagents used are analytical grade.
[0041] The titanium powder has a particle size of 2.5 μm and a purity of 99.95%, the zinc powder has a particle size of 3.5 μm and a purity of 99.9%, the copper powder has a particle size of 3 μm and a purity of 99.9%, the magnesium powder has a particle size of 2.5 μm and a purity of 99.95%, and the silver powder has a particle size of 5 μm and a purity of 99.99%.
[0042] The bioactive glass had a purity of 99% and was purchased from Wuhan Kemic Biomedical Technology Co., Ltd.
[0043] The carboxymethyl cellulose, product number C804618, was purchased from Shanghai Maclean Biochemical Technology Co., Ltd.
[0044] Example 1
[0045] A method for preparing an alloy material with enhanced barrier absorption includes the following preparation steps:
[0046] S1. Mix the modified titanium powder, zinc powder, and copper powder evenly, place them in a melting furnace, and melt them at 1000℃ for 30 minutes to obtain a basic melt. Add magnesium powder and silver powder to the basic melt and stir at 970℃ for 20 minutes to obtain an alloy melt. The mass ratio of modified titanium powder, zinc powder, copper powder, magnesium powder, and silver powder is 1:4.5:1.5:0.5:0.1.
[0047] S2. Place the molten alloy in a pre-made mold, cast it, cool it to room temperature, demold it, and obtain an alloy ingot; the casting pressure is 20MPa.
[0048] S3. After annealing and cold rolling, the alloy ingot is immersed in a surface treatment agent, stirred at 40°C for 20 minutes, removed, and dried at 80°C for 20 minutes to obtain the alloy material; the annealing temperature is 300°C and the annealing time is 2 hours; the cold rolling pressure is 300 MPa.
[0049] Modified titanium powder is prepared by the following steps:
[0050] A1. Add titanium powder and tannic acid to ethanol, stir evenly, add glucose, stir at 70℃ for 30 min, filter, wash three times with deionized water, dry in an oven at 70℃ for 10 min, place in a tube furnace, add 30% potassium hydroxide solution, purge with nitrogen, carbonize at 800℃ for 4 h, cool to room temperature, remove, wash three times with deionized water, dry in an oven at 70℃ for 10 min to obtain titanium powder with a porous carbon layer; the mass ratio of titanium powder, tannic acid, ethanol, glucose and potassium hydroxide solution is 2:0.5:100:2:2;
[0051] A2. Add calcium hydroxide to deionized water and stir until completely dissolved. Add titanium powder with a porous carbon layer and stir at 30°C for 30 min. Add phosphoric acid and continue stirring at 400 r / min for 30 min. Then, carry out a hydrothermal reaction at 60°C for 2 h. Cool to room temperature, filter, wash three times with deionized water, and dry in an oven at 65°C for 10 min to obtain modified titanium powder. The mass ratio of calcium hydroxide, deionized water, titanium powder with a porous carbon layer and phosphoric acid is 1.5:100:2.5:1.
[0052] The composite gel is prepared by the following steps:
[0053] B1. Hyaluronic acid was added to deionized water and stirred until viscous. Bioactive glass was added and stirred at 60°C for 30 min. After filtration, the mixture was washed three times with deionized water and dried in an oven at 70°C for 10 min to obtain hyaluronic acid-modified bioactive glass. The mass ratio of hyaluronic acid, deionized water and bioactive glass was 2:40:3.
[0054] B2. Carboxymethyl cellulose and polyvinyl alcohol were added to ethanol and sonicated at 30℃ and 40kHz for 5 min. Epichlorohydrin and hyaluronic acid-modified bioactive glass were added and stirred to form a gel. After filtration and washing with deionized water, a composite gel was obtained. The mass ratio of carboxymethyl cellulose, polyvinyl alcohol, ethanol, epichlorohydrin and hyaluronic acid-modified bioactive glass was 0.8:0.5:90:1:1.5.
[0055] Example 2
[0056] A method for preparing an alloy material with enhanced barrier absorption includes the following preparation steps:
[0057] S1. Mix the modified titanium powder, zinc powder, and copper powder evenly, place them in a melting furnace, and melt them at 1050℃ for 45 minutes to obtain a basic melt. Add magnesium powder and silver powder to the basic melt and stir at 1010℃ for 30 minutes to obtain an alloy melt. The mass ratio of modified titanium powder, zinc powder, copper powder, magnesium powder, and silver powder is 1.3:5.2:2:1:0.4.
[0058] S2. Place the molten alloy in a pre-made mold, cast it, cool it to room temperature, demold it, and obtain an alloy ingot; the casting pressure is 25MPa.
[0059] S3. After annealing and cold rolling, the alloy ingot is immersed in a surface treatment agent, stirred at 45°C for 25 minutes, removed, and dried at 80°C for 20 minutes to obtain the alloy material; the annealing temperature is 350°C and the annealing time is 3 hours; the cold rolling pressure is 330 MPa.
[0060] Modified titanium powder is prepared by the following steps:
[0061] A1. Add titanium powder and tannic acid to ethanol, stir evenly, add glucose, stir at 70℃ for 30 min, filter, wash three times with deionized water, dry in an oven at 70℃ for 10 min, place in a tube furnace, add 30% potassium hydroxide solution, purge with nitrogen, carbonize at 800℃ for 4 h, cool to room temperature, remove, wash three times with deionized water, dry in an oven at 70℃ for 10 min to obtain titanium powder with a porous carbon layer; the mass ratio of titanium powder, tannic acid, ethanol, glucose and potassium hydroxide solution is 2.5:0.8:110:2.3:2.5;
[0062] A2. Add calcium hydroxide to deionized water and stir until completely dissolved. Add titanium powder with a porous carbon layer and stir at 30°C for 30 min. Add phosphoric acid and continue stirring at 400 r / min for 30 min. Then, carry out a hydrothermal reaction at 60°C for 2 h. Cool to room temperature, filter, wash three times with deionized water, and dry in an oven at 65°C for 10 min to obtain modified titanium powder. The mass ratio of calcium hydroxide, deionized water, titanium powder with a porous carbon layer and phosphoric acid is 1.8:105:2.8:1.
[0063] The composite gel is prepared by the following steps:
[0064] B1. Hyaluronic acid was added to deionized water and stirred until viscous. Bioactive glass was added and stirred at 60°C for 30 min. After filtration, the mixture was washed three times with deionized water and dried in an oven at 70°C for 10 min to obtain hyaluronic acid-modified bioactive glass. The mass ratio of hyaluronic acid, deionized water and bioactive glass was 2.5:45:3.3.
[0065] B2. Carboxymethyl cellulose and polyvinyl alcohol were added to ethanol and sonicated at 30℃ and 40kHz for 5 min. Epichlorohydrin and hyaluronic acid-modified bioactive glass were added and stirred to form a gel. After filtration and washing with deionized water, a composite gel was obtained. The mass ratio of carboxymethyl cellulose, polyvinyl alcohol, ethanol, epichlorohydrin and hyaluronic acid-modified bioactive glass was 1:0.8:95:1.1:1.8.
[0066] Example 3
[0067] A method for preparing an alloy material with enhanced barrier absorption includes the following preparation steps:
[0068] S1. Mix the modified titanium powder, zinc powder, and copper powder evenly, place them in a melting furnace, and melt them at 1100℃ for 60 minutes to obtain a basic melt. Add magnesium powder and silver powder to the basic melt, and stir at 1050℃ for 40 minutes to obtain an alloy melt. The mass ratio of modified titanium powder, zinc powder, copper powder, magnesium powder, and silver powder is 1.5:6:2.5:1.2:0.5.
[0069] S2. Place the molten alloy in a pre-made mold, cast it, cool it to room temperature, demold it, and obtain an alloy ingot; the casting pressure is 30MPa.
[0070] S3. After annealing and cold rolling, the alloy ingot is immersed in a surface treatment agent, stirred at 50°C for 30 minutes, removed, and dried at 80°C for 20 minutes to obtain the alloy material; the annealing temperature is 400°C and the annealing time is 4 hours; the cold rolling pressure is 350 MPa.
[0071] Modified titanium powder is prepared by the following steps:
[0072] A1. Add titanium powder and tannic acid to ethanol, stir evenly, add glucose, stir at 70℃ for 30 min, filter, wash three times with deionized water, dry in an oven at 70℃ for 10 min, place in a tube furnace, add 30% potassium hydroxide solution, purge with nitrogen, carbonize at 800℃ for 4 h, cool to room temperature, remove, wash three times with deionized water, dry in an oven at 70℃ for 10 min to obtain titanium powder with a porous carbon layer; the mass ratio of titanium powder, tannic acid, ethanol, glucose and potassium hydroxide solution is 3:1:120:2.5:3;
[0073] A2. Add calcium hydroxide to deionized water and stir until completely dissolved. Add titanium powder with a porous carbon layer and stir at 30°C for 30 min. Add phosphoric acid and continue stirring at 400 r / min for 30 min. Then, carry out a hydrothermal reaction at 60°C for 2 h. Cool to room temperature, filter, wash three times with deionized water, and dry in an oven at 65°C for 10 min to obtain modified titanium powder. The mass ratio of calcium hydroxide, deionized water, titanium powder with a porous carbon layer, and phosphoric acid is 2:110:3:1.2.
[0074] The composite gel is prepared by the following steps:
[0075] B1. Hyaluronic acid was added to deionized water and stirred until viscous. Bioactive glass was added and stirred at 60°C for 30 min. After filtration, the mixture was washed three times with deionized water and dried in an oven at 70°C for 10 min to obtain hyaluronic acid-modified bioactive glass. The mass ratio of hyaluronic acid, deionized water and bioactive glass was 3:50:3.5.
[0076] B2. Carboxymethyl cellulose and polyvinyl alcohol were added to ethanol and sonicated at 30℃ and 40kHz for 5 min. Epichlorohydrin and hyaluronic acid-modified bioactive glass were added and stirred to form a gel. After filtration and washing with deionized water, a composite gel was obtained. The mass ratio of carboxymethyl cellulose, polyvinyl alcohol, ethanol, epichlorohydrin and hyaluronic acid-modified bioactive glass was 1.2:1:100:1.2:2.
[0077] Comparative Example 1
[0078] A method for preparing an alloy material with enhanced barrier absorption includes the following preparation steps:
[0079] S1. Mix the modified titanium powder, zinc powder, and copper powder evenly, place them in a melting furnace, and melt them at 1100℃ for 60 minutes to obtain a basic melt. Add magnesium powder and silver powder to the basic melt, and stir at 1050℃ for 40 minutes to obtain an alloy melt. The mass ratio of modified titanium powder, zinc powder, copper powder, magnesium powder, and silver powder is 1.5:6:2.5:1.2:0.5.
[0080] S2. Place the molten alloy in a pre-made mold, cast it, cool it to room temperature, demold it, and obtain an alloy ingot; the casting pressure is 30MPa.
[0081] S3. After annealing and cold rolling, the alloy ingot is immersed in a surface treatment agent, stirred at 50°C for 30 minutes, removed, and dried at 80°C for 20 minutes to obtain the alloy material; the annealing temperature is 400°C and the annealing time is 4 hours; the cold rolling pressure is 350 MPa.
[0082] Modified titanium powder is prepared by the following steps:
[0083] Calcium hydroxide was added to deionized water and stirred until completely dissolved. Titanium powder was added and stirred at 30°C for 30 min. Phosphoric acid was added and stirred at 400 r / min for another 30 min. The mixture was then subjected to a hydrothermal reaction at 60°C for 2 h. After cooling to room temperature, the mixture was filtered, washed three times with deionized water, and dried in an oven at 65°C for 10 min to obtain modified titanium powder. The mass ratio of calcium hydroxide, deionized water, titanium powder, and phosphoric acid was 2:110:3:1.2.
[0084] The composite gel is prepared by the following steps:
[0085] B1. Hyaluronic acid was added to deionized water and stirred until viscous. Bioactive glass was added and stirred at 60°C for 30 min. After filtration, the mixture was washed three times with deionized water and dried in an oven at 70°C for 10 min to obtain hyaluronic acid-modified bioactive glass. The mass ratio of hyaluronic acid, deionized water and bioactive glass was 3:50:3.5.
[0086] B2. Carboxymethyl cellulose and polyvinyl alcohol were added to ethanol and sonicated at 30℃ and 40kHz for 5 min. Epichlorohydrin and hyaluronic acid-modified bioactive glass were added and stirred to form a gel. After filtration and washing with deionized water, a composite gel was obtained. The mass ratio of carboxymethyl cellulose, polyvinyl alcohol, ethanol, epichlorohydrin and hyaluronic acid-modified bioactive glass was 1.2:1:100:1.2:2.
[0087] Comparative Example 2
[0088] A method for preparing an alloy material with enhanced barrier absorption includes the following preparation steps:
[0089] S1. Mix titanium powder, zinc powder, and copper powder loaded with porous carbon layer evenly, place them in a melting furnace, and melt at 1100℃ for 60 min to obtain a basic melt. Add magnesium powder and silver powder to the basic melt, and stir at 1050℃ for 40 min to obtain an alloy melt. The mass ratio of titanium powder, zinc powder, copper powder, magnesium powder, and silver powder loaded with porous carbon layer is 1.5:6:2.5:1.2:0.5.
[0090] S2. Place the molten alloy in a pre-made mold, cast it, cool it to room temperature, demold it, and obtain an alloy ingot; the casting pressure is 30MPa.
[0091] S3. After annealing and cold rolling, the alloy ingot is immersed in a surface treatment agent, stirred at 50°C for 30 minutes, removed, and dried at 80°C for 20 minutes to obtain the alloy material; the annealing temperature is 400°C and the annealing time is 4 hours; the cold rolling pressure is 350 MPa.
[0092] Titanium powder with a porous carbon layer is prepared by the following steps:
[0093] Titanium powder and tannic acid were added to ethanol and stirred until homogeneous. Glucose was then added, and the mixture was stirred at 70°C for 30 minutes. After filtration, the mixture was washed three times with deionized water and dried in a 70°C oven for 10 minutes. The mixture was then placed in a tube furnace, and a 30% potassium hydroxide solution was added. Nitrogen gas was introduced, and the mixture was carbonized at 800°C for 4 hours. After cooling to room temperature, the mixture was removed, washed three times with deionized water, and dried in a 70°C oven for 10 minutes to obtain titanium powder with a porous carbon layer. The mass ratio of titanium powder, tannic acid, ethanol, glucose, and potassium hydroxide solution was 3:1:120:2.5:3.
[0094] The composite gel is prepared by the following steps:
[0095] B1. Hyaluronic acid was added to deionized water and stirred until viscous. Bioactive glass was added and stirred at 60°C for 30 min. After filtration, the mixture was washed three times with deionized water and dried in an oven at 70°C for 10 min to obtain hyaluronic acid-modified bioactive glass. The mass ratio of hyaluronic acid, deionized water and bioactive glass was 3:50:3.5.
[0096] B2. Carboxymethyl cellulose and polyvinyl alcohol were added to ethanol and sonicated at 30℃ and 40kHz for 5 min. Epichlorohydrin and hyaluronic acid-modified bioactive glass were added and stirred to form a gel. After filtration and washing with deionized water, a composite gel was obtained. The mass ratio of carboxymethyl cellulose, polyvinyl alcohol, ethanol, epichlorohydrin and hyaluronic acid-modified bioactive glass was 1.2:1:100:1.2:2.
[0097] Comparative Example 3
[0098] A method for preparing an alloy material with enhanced barrier absorption includes the following preparation steps:
[0099] S1. Mix the modified titanium powder, zinc powder, and copper powder evenly, place them in a melting furnace, and melt them at 1100℃ for 60 minutes to obtain a basic melt. Add magnesium powder and silver powder to the basic melt, and stir at 1050℃ for 40 minutes to obtain an alloy melt. The mass ratio of modified titanium powder, zinc powder, copper powder, magnesium powder, and silver powder is 1.5:6:2.5:1.2:0.5.
[0100] S2. Place the molten alloy in a pre-made mold, cast it, cool it to room temperature, demold it, and obtain an alloy ingot; the casting pressure is 30MPa.
[0101] S3. After annealing and cold rolling, the alloy ingot is immersed in a surface treatment agent, stirred at 50°C for 30 minutes, removed, and dried at 80°C for 20 minutes to obtain the alloy material; the annealing temperature is 400°C and the annealing time is 4 hours; the cold rolling pressure is 350 MPa.
[0102] Modified titanium powder is prepared by the following steps:
[0103] A1. Add titanium powder and tannic acid to ethanol, stir evenly, add glucose, stir at 70℃ for 30 min, filter, wash three times with deionized water, dry in an oven at 70℃ for 10 min, place in a tube furnace, add 30% potassium hydroxide solution, purge with nitrogen, carbonize at 800℃ for 4 h, cool to room temperature, remove, wash three times with deionized water, dry in an oven at 70℃ for 10 min to obtain titanium powder with a porous carbon layer; the mass ratio of titanium powder, tannic acid, ethanol, glucose and potassium hydroxide solution is 3:1:120:2.5:3;
[0104] A2. Add calcium hydroxide to deionized water and stir until completely dissolved. Add titanium powder with a porous carbon layer and stir at 30°C for 30 min. Add phosphoric acid and continue stirring at 400 r / min for 30 min. Then, carry out a hydrothermal reaction at 60°C for 2 h. Cool to room temperature, filter, wash three times with deionized water, and dry in an oven at 65°C for 10 min to obtain modified titanium powder. The mass ratio of calcium hydroxide, deionized water, titanium powder with a porous carbon layer, and phosphoric acid is 2:110:3:1.2.
[0105] The composite gel is prepared by the following steps:
[0106] Carboxymethyl cellulose and polyvinyl alcohol were added to ethanol and sonicated at 30℃ and 40kHz for 5 min. Epichlorohydrin and bioactive glass were then added and stirred to form a gel. The gel was filtered and washed with deionized water to obtain a composite gel. The mass ratio of carboxymethyl cellulose, polyvinyl alcohol, ethanol, epichlorohydrin and bioactive glass was 1.2:1:100:1.2:2.
[0107] Comparative Example 4
[0108] A method for preparing an alloy material with enhanced barrier absorption includes the following preparation steps:
[0109] S1. Mix the modified titanium powder, zinc powder, and copper powder evenly, place them in a melting furnace, and melt them at 1100℃ for 60 minutes to obtain a basic melt. Add magnesium powder and silver powder to the basic melt, and stir at 1050℃ for 40 minutes to obtain an alloy melt. The mass ratio of modified titanium powder, zinc powder, copper powder, magnesium powder, and silver powder is 1.5:6:2.5:1.2:0.5.
[0110] S2. Place the molten alloy in a pre-made mold, cast it, cool it to room temperature, demold it, and obtain an alloy ingot; the casting pressure is 30MPa.
[0111] S3. After annealing and cold rolling, the alloy ingot is immersed in a surface treatment agent, stirred at 50°C for 30 minutes, removed, and dried at 80°C for 20 minutes to obtain the alloy material; the annealing temperature is 400°C and the annealing time is 4 hours; the cold rolling pressure is 350 MPa.
[0112] Modified titanium powder is prepared by the following steps:
[0113] A1. Add titanium powder and tannic acid to ethanol, stir evenly, add glucose, stir at 70℃ for 30 min, filter, wash three times with deionized water, dry in an oven at 70℃ for 10 min, place in a tube furnace, add 30% potassium hydroxide solution, purge with nitrogen, carbonize at 800℃ for 4 h, cool to room temperature, remove, wash three times with deionized water, dry in an oven at 70℃ for 10 min to obtain titanium powder with a porous carbon layer; the mass ratio of titanium powder, tannic acid, ethanol, glucose and potassium hydroxide solution is 3:1:120:2.5:3;
[0114] A2. Add calcium hydroxide to deionized water and stir until completely dissolved. Add titanium powder with a porous carbon layer and stir at 30°C for 30 min. Add phosphoric acid and continue stirring at 400 r / min for 30 min. Then, carry out a hydrothermal reaction at 60°C for 2 h. Cool to room temperature, filter, wash three times with deionized water, and dry in an oven at 65°C for 10 min to obtain modified titanium powder. The mass ratio of calcium hydroxide, deionized water, titanium powder with a porous carbon layer, and phosphoric acid is 2:110:3:1.2.
[0115] The composite gel is prepared by the following steps:
[0116] B1. Hyaluronic acid was added to deionized water and stirred until viscous. Bioactive glass was added and stirred at 60°C for 30 min. After filtration, the mixture was washed three times with deionized water and dried in an oven at 70°C for 10 min to obtain hyaluronic acid-modified bioactive glass. The mass ratio of hyaluronic acid, deionized water and bioactive glass was 3:50:3.5.
[0117] B2. Polyvinyl alcohol was added to ethanol and sonicated at 30℃ and 40kHz for 5 min. Epichlorohydrin and hyaluronic acid-modified bioactive glass were added and stirred to form a gel. After filtration and washing with deionized water, a composite gel was obtained. The mass ratio of polyvinyl alcohol, ethanol, epichlorohydrin and hyaluronic acid-modified bioactive glass was 2.2:100:1.2:2.
[0118] Comparative Example 5
[0119] A method for preparing an alloy material with enhanced barrier absorption includes the following preparation steps:
[0120] S1. Mix the modified titanium powder, zinc powder, and copper powder evenly, place them in a melting furnace, and melt them at 1100℃ for 60 minutes to obtain a basic melt. Add magnesium powder and silver powder to the basic melt, and stir at 1050℃ for 40 minutes to obtain an alloy melt. The mass ratio of modified titanium powder, zinc powder, copper powder, magnesium powder, and silver powder is 1.5:6:2.5:1.2:0.5.
[0121] S2. Place the molten alloy in a pre-made mold, cast it, cool it to room temperature, demold it, and obtain an alloy ingot; the casting pressure is 30MPa.
[0122] S3. After annealing and cold rolling, the alloy ingot is immersed in a surface treatment agent, stirred at 50°C for 30 minutes, removed, and dried at 80°C for 20 minutes to obtain the alloy material; the annealing temperature is 400°C and the annealing time is 4 hours; the cold rolling pressure is 350 MPa.
[0123] Modified titanium powder is prepared by the following steps:
[0124] A1. Add titanium powder and tannic acid to ethanol, stir evenly, add glucose, stir at 70℃ for 30 min, filter, wash three times with deionized water, dry in an oven at 70℃ for 10 min, place in a tube furnace, add 30% potassium hydroxide solution, purge with nitrogen, carbonize at 800℃ for 4 h, cool to room temperature, remove, wash three times with deionized water, dry in an oven at 70℃ for 10 min to obtain titanium powder with a porous carbon layer; the mass ratio of titanium powder, tannic acid, ethanol, glucose and potassium hydroxide solution is 3:1:120:2.5:3;
[0125] A2. Add calcium hydroxide to deionized water and stir until completely dissolved. Add titanium powder with a porous carbon layer and stir at 30°C for 30 min. Add phosphoric acid and continue stirring at 400 r / min for 30 min. Then, carry out a hydrothermal reaction at 60°C for 2 h. Cool to room temperature, filter, wash three times with deionized water, and dry in an oven at 65°C for 10 min to obtain modified titanium powder. The mass ratio of calcium hydroxide, deionized water, titanium powder with a porous carbon layer, and phosphoric acid is 2:110:3:1.2.
[0126] The composite gel is prepared by the following steps:
[0127] B1. Hyaluronic acid was added to deionized water and stirred until viscous. Bioactive glass was added and stirred at 60°C for 30 min. After filtration, the mixture was washed three times with deionized water and dried in an oven at 70°C for 10 min to obtain hyaluronic acid-modified bioactive glass. The mass ratio of hyaluronic acid, deionized water and bioactive glass was 3:50:3.5.
[0128] B2. Carboxymethyl cellulose was added to ethanol and sonicated at 30℃ and 40kHz for 5 min. Epichlorohydrin and hyaluronic acid-modified bioactive glass were added and stirred to form a gel. After filtration and washing with deionized water, a composite gel was obtained. The mass ratio of carboxymethyl cellulose, ethanol, epichlorohydrin and hyaluronic acid-modified bioactive glass was 2.2:100:1.2:2.
[0129] The performance of the alloy materials prepared in Examples 1-3 and Comparative Examples 1-5 was then tested.
[0130] Thirty-three healthy women aged 30-50 with oily and sensitive skin were selected. The lactic acid stinging test was used to screen for people with sensitive skin. Healthy female subjects with a lactic acid stinging score >3 used the test sample continuously for 28 days. The changes before and after the test sample were observed by instrument detection, so as to comprehensively evaluate the long-term efficacy of the test sample after 28 days of continuous use.
[0131] Experimental method: The alloy material prepared above was installed in the water inlet of a faucet. Before each use, the water was run for 5 minutes. Volunteers washed their faces daily, with water coming into contact with their skin 6-8 times, once in the morning and once in the evening.
[0132] Elasticity and firmness efficacy test: Skin firmness and skin elasticity were tested using the CK-Cutometer MPA 580 multi-probe skin testing system;
[0133] Skin radiance efficacy test: Skin brightness L value and skin color ITA° were tested using the CK-Skin clororimeter CL400 multi-probe skin testing system;
[0134] Moisturizing efficacy testing: The moisture content of the stratum corneum was measured using the CK-Corneometer CM825 multi-probe skin testing system; the transepidermal water loss rate (TEWL) was measured using the CK-Tewameter TM Hex multi-probe skin testing system.
[0135] Anti-wrinkle efficacy testing: Wrinkle parameters SEw, crow's feet depth, crow's feet length, crow's feet area, crow's feet volume, nasolabial fold depth, nasolabial fold length, nasolabial fold area, and nasolabial fold volume were detected using the PRIMOS-CR three-dimensional rapid imaging system;
[0136] Oil control efficacy test: Facial skin oil content was tested using the CK-Skin Sebumeter SM815 multi-probe skin testing system;
[0137] Skin repair efficacy testing: Heme content (EI) was tested using the CK-Skin Mexameter MX18 multi-probe skin testing system;
[0138] Record the rate of increase or decrease of the above test results compared to the baseline value of the untested product.
[0139] Mechanical strength test: The tensile strength and yield strength of the alloy material prepared above were determined according to the standard GB / T 228.1-2010 "Metallic materials - tensile test at room temperature".
[0140] The test results are shown in Tables 1, 2, 3, and 4 below.
[0141] Table 1. Performance testing of alloy materials prepared in Examples 1-3 and Comparative Examples 1-5
[0142] project Skin firmness reduction rate / % Skin elasticity increase rate / % Skin brightness L-value increase rate / % Skin color ITA° increase rate / % skin stratum corneum moisture content increase rate / % Decrease in transdermal water loss rate / % Example 1 13.77 9.32 2.07 6.71 13.92 8.67 Example 2 13.79 9.33 2.09 6.73 13.94 8.69 Example 3 13.75 9.31 2.05 6.70 13.91 8.66 Comparative Example 1 10.32 7.32 1.55 4.21 10.45 6.21 Comparative Example 2 11.71 7.56 1.59 4.44 11.27 6.85 Comparative Example 3 5.56 3.27 0.58 2.11 5.37 3.01 Comparative Example 4 6.11 4.11 1.02 2.32 6.52 4.21 Comparative Example 5 5.95 3.75 0.67 2.27 5.68 3.88
[0143] Table 2. Performance testing of alloy materials prepared in Examples 1-3 and Comparative Examples 1-5
[0144] project Wrinkle parameter SEw reduction rate / % Crow's feet depth reduction rate / % The rate of decrease in the length of crow's feet / % Reduction rate of crow's feet area / % Crow's feet volume reduction rate / % Nasolabial fold depth reduction rate / % Nasolabial fold length reduction rate / % Nasolabial fold area reduction rate / % Nasolabial fold volume reduction rate / % Example 1 9.86 3.28 9.07 6.92 7.74 6.06 6.98 7.36 8.81 Example 2 9.88 3.30 9.09 6.93 7.76 6.08 7.00 7.38 8.83 Example 3 9.85 3.27 9.06 6.91 7.73 6.05 6.97 7.35 8.80 Comparative Example 1 7.21 2.11 7.27 4.56 5.65 4.33 4.55 5.12 6.32 Comparative Example 2 7.55 2.57 7.38 4.67 5.95 4.51 4.69 5.59 6.66 Comparative Example 3 4.11 1.06 3.44 1.01 2.11 2.41 1.55 2.06 2.45 Comparative Example 4 4.21 1.13 4.32 1.22 3.12 3.01 1.95 2.31 3.76 Comparative Example 5 4.16 1.10 3.98 1.18 2.92 2.67 1.67 2.22 2.65
[0145] Table 3. Performance testing of alloy materials prepared in Examples 1-3 and Comparative Examples 1-5
[0146] project Facial skin oil content reduction rate / % Heme content EI increase rate / % Example 1 13.82 5.57 Example 2 13.88 5.59 Example 3 13.78 5.52 Comparative Example 1 10.33 3.21 Comparative Example 2 11.27 3.54 Comparative Example 3 5.74 1.02 Comparative Example 4 6.31 1.11 Comparative Example 5 5.91 1.08
[0147] Table 4. Performance testing of alloy materials prepared in Examples 1-3 and Comparative Examples 1-5
[0148] project Tensile strength / MPa Yield strength / MPa Example 1 642 441 Example 2 643 442 Example 3 641 440 Comparative Example 1 321 185 Comparative Example 2 398 201 Comparative Example 3 638 438 Comparative Example 4 635 433 Comparative Example 5 636 435
[0149] As can be seen from the data in Tables 1, 2, 3 and 4, the alloy materials prepared in Examples 1-3 have high mechanical strength and good barrier absorption performance.
[0150] Comparative Example 1 showed that when titanium powder loaded with porous carbon layers was replaced with modified titanium powder prepared from titanium powder, its mechanical strength and barrier absorption performance decreased. This demonstrates that the porous carbon layer, as a synthesis site for hydroxyapatite, facilitates the formation of hydroxyapatite on the surface of titanium powder, improves the biocompatibility of the alloy material, and thus enhances its barrier absorption performance. Furthermore, the synthesized porous carbon layer provides a large amount of carbon, which can form carbide reinforcing phases with zinc powder, copper powder, magnesium powder, and silver powder and dispersed in the alloy matrix to form a dense alloy material, thereby improving its mechanical strength. In addition, it can slowly release metallic elements such as zinc, copper, magnesium, and silver, improving skin condition.
[0151] Comparative Example 2 showed that when modified titanium powder was replaced with titanium powder loaded with porous carbon layers, the mechanical strength and barrier absorption performance of the alloy material decreased. This demonstrates that the synthesis of nano-hydroxyapatite in the pores of the porous carbon layer on the surface of titanium powder has good biocompatibility, which allows the alloy material to be better absorbed by the skin, improving skin condition. Furthermore, the addition of nano-hydroxyapatite to the alloy material can improve the mechanical properties of the alloy material.
[0152] Comparative Example 3 showed that replacing the hyaluronic acid-modified bioactive glass with a composite gel prepared from bioactive glass applied to the surface of the alloy material resulted in a decrease in its barrier absorption performance. This demonstrates that the coating of hyaluronic acid on the surface of the bioactive glass imparts active functional groups, which facilitates the embedding of hyaluronic acid and bioactive glass into the cellulose gel. This prevents the bioactive glass from agglomerating on the surface of the alloy material, thus affecting its barrier absorption performance. Furthermore, hyaluronic acid itself possesses moisturizing, anti-inflammatory, and repair-promoting properties. When combined with the bioactive glass coating on the surface of the alloy material, it forms an alloy material with good moisturizing, anti-wrinkle, and repair effects, exhibiting excellent barrier absorption performance.
[0153] Comparative Example 4, in which carboxymethyl cellulose was replaced by polyvinyl alcohol, and Comparative Example 5, in which polyvinyl alcohol was replaced by carboxymethyl cellulose, were used to prepare composite gels that were applied to the surface of alloy materials. The barrier absorption performance of these gels decreased, demonstrating that the gels formed with polyvinyl alcohol and carboxymethyl cellulose as the matrix contain a large number of oxygen-containing functional groups and have good bonding force with the alloy materials. This allows for the formation of a gel layer on the surface of the alloy materials, improving the surface bonding force and enhancing the barrier absorption performance of the alloy materials.
[0154] Long-term stability testing:
[0155] The alloy material samples prepared in Examples 1-3 and Comparative Examples 1-5 were placed in a constant temperature and humidity chamber at 40°C and 75% relative humidity under accelerated aging conditions simulating daily use for 1 month and 3 months, respectively. Samples were removed at each time point, and their tensile strength and the retention rate of the increase in skin stratum corneum moisture content were measured to assess the long-term stability of the samples' mechanical properties and functions. The performance testing method was as described above, and the functional retention rate was calculated as (the increase in moisture content measured in the aged sample / the increase in moisture content of the fresh sample) × 100%. Specific test results are shown in Tables 5 and 6 below.
[0156] Table 5. Long-term stability test of mechanical properties of alloy materials prepared in Examples 1-3 and Comparative Examples 1-5
[0157] project Initial tensile strength / MPa Tensile strength after 1 month / MPa Tensile strength after 3 months / MPa Example 1 642 640 640 Example 2 643 641 640 Example 3 641 639 639 Comparative Example 1 321 315 311 Comparative Example 2 398 390 388 Comparative Example 3 638 601 598 Comparative Example 4 635 625 622 Comparative Example 5 636 627 621
[0158] Table 6. Long-term functional stability testing of alloy materials prepared in Examples 1-3 and Comparative Examples 1-5
[0159] project Initial moisture gain rate (%) Functional retention rate after 6 months (%) Example 1 13.92 98.5 Example 2 13.94 98.7 Example 3 13.91 98.3 Comparative Example 1 10.45 92.1 Comparative Example 2 11.27 94.3 Comparative Example 3 5.37 82.5 Comparative Example 4 6.52 88.8 Comparative Example 5 5.68 87.5
[0160] As shown in Tables 5 and 6, the samples in Examples 1-3 exhibited good long-term stability. After accelerated aging simulation, the tensile strength decreased only slightly, and the functional retention rate was high. Therefore, this invention fundamentally enhances the structural stability and functional durability of the material through a synergistic strategy of constructing a porous carbon layer on the surface of titanium powder, synthesizing nano-hydroxyapatite in situ, and then composited with a hyaluronic acid-modified bioactive glass / cellulose gel layer. The carbide-reinforcing phase formed by the porous carbon layer and the matrix metal provides a stable mechanical framework; the uniformly dispersed nano-hydroxyapatite and the firmly bonded composite gel layer together constitute a stable and continuous interface for the release and interaction of functional elements, effectively resisting performance degradation caused by damp heat aging.
[0161] The results from Comparative Examples 1 and 2 verify the indispensability of porous carbon layers as reinforcing phases and nano-hydroxyapatite as bioactive stabilizers for maintaining the long-term performance of the materials. The absence of either weakens the structural integrity and stability of the bioactive interface. The results from Comparative Examples 3-5 show that hyaluronic acid modification is crucial for the stable immobilization of bioactive glass in the gel, preventing its detachment or deactivation during aging. The interpenetrating network gel matrix composed of polyvinyl alcohol and carboxymethyl cellulose provides excellent adhesion and cohesive stability. The absence of either component reduces the structural integrity of the gel layer, its bonding strength with the alloy matrix, and its protective effect on the active ingredients, leading to premature loss or deactivation of functional elements and significantly reducing long-term efficacy.
[0162] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0163] The above description is merely an example and illustration of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.
Claims
1. A method of making an alloy material having enhanced barrier absorption, characterized by, The preparation method comprises the following steps: S1. The modified titanium powder, zinc powder and copper powder are uniformly mixed and put into a smelting furnace, and then smelted at 1000-1100 DEG C for 30-60 min to obtain a base melt, and then magnesium powder and silver powder are added into the base melt and stirred at 970-1050 DEG C for 20-40 min to obtain an alloy melt; S2. The alloy melt is put into a prefabricated mold, cast into shape, cooled to room temperature, demolded, and then an alloy ingot is obtained; S3. The alloy ingot is subjected to annealing treatment and cold rolling, and then immersed into a surface treatment agent and stirred at 40-50 DEG C for 20-30 min, taken out, dried, and then an alloy material is obtained; The modified titanium powder is obtained by synthesizing a porous carbon layer on the surface of titanium powder, and then mixed with calcium hydroxide and phosphoric acid for reaction; The surface treatment agent is obtained by mixing a composite gel and deionized water according to a mass ratio of (5-10):90; The composite gel is obtained by mixing polyvinyl alcohol and carboxymethyl cellulose after hyaluronic acid is surface modified with bioactive glass; The modified titanium powder is specifically prepared by the following steps: A1. The titanium powder and tannic acid are added into ethanol, stirred uniformly, and then glucose is added and stirred uniformly, filtered, washed, dried, put into a tube furnace, added with potassium hydroxide solution, and then nitrogen is introduced, carbonized, cooled to room temperature, taken out, washed, and dried to obtain titanium powder loaded with a porous carbon layer; A2. The calcium hydroxide is added into deionized water and stirred until completely dissolved, and then the titanium powder loaded with a porous carbon layer is added and stirred uniformly, and then phosphoric acid is added, and then the mixture is continuously stirred and subjected to hydrothermal reaction, cooled to room temperature, filtered, washed, and dried to obtain the modified titanium powder.
2. The method of claim 1, wherein the alloy material has improved barrier absorption. In step A1, the mass ratio of the titanium powder, tannic acid, ethanol, glucose and potassium hydroxide solution is (2-3):(0.5-1):(100-120):(2-2.5):(2-3).
3. The method of claim 1, wherein the alloy material has improved barrier absorption. In step A2, the mass ratio of the calcium hydroxide, deionized water, titanium powder loaded with a porous carbon layer and phosphoric acid is (1.5-2):(100-110):(2.5-3):(1-1.2).
4. The method of claim 1, wherein the alloy material has improved barrier absorption. The composite gel is specifically prepared by the following steps: B1. The hyaluronic acid is added into deionized water and stirred until thick, and then the bioactive glass is added and stirred uniformly, filtered, washed, and dried to obtain the bioactive glass modified with hyaluronic acid; B2. The carboxymethyl cellulose and polyvinyl alcohol are added into ethanol, subjected to ultrasonic treatment, and then epichlorohydrin and the bioactive glass modified with hyaluronic acid are added, and then the mixture is stirred to form a gel, filtered, and washed to obtain the composite gel.
5. The method of claim 4, wherein the alloy material has improved barrier absorption. In step B1, the mass ratio of the hyaluronic acid, deionized water and bioactive glass is (2-3):(40-50):(3-3.5).
6. The method of claim 4, wherein the alloy material has improved barrier absorption. In step B2, the mass ratio of the carboxymethyl cellulose, polyvinyl alcohol, ethanol, epichlorohydrin and bioactive glass modified with hyaluronic acid is (0.8-1.2):(0.5-1):(90-100):(1-1.2):(1.5-2).
7. The method of claim 1, wherein the alloy material has improved barrier absorption. The mass ratio of the modified titanium powder, zinc powder, copper powder, magnesium powder and silver powder in step S1 is (1-1.5):(4.5-6):(1.5-2.5):(0.5-1.2):(0.1-0.5).
8. The method of claim 1, wherein the alloy material has improved barrier absorption. In step S2, the pressure for casting forming is 20-30 MPa.
9. The method of claim 1, wherein the alloy material has improved barrier absorption. In step S3, the annealing temperature is 300-400℃, the annealing time is 2-4h, and the cold rolling pressure is 300-350 MPa.
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