13 results about "Hydroxylapatite" patented technology

The present disclosure provides a method for solidifying heavy metal ions in lithium slag, belonging to the technical field of lithium slag treatment. The method for solidifying heavy metal ions in lithium slag comprises: taking lithium slag powder as a base material, adding sodium fluoride, silicon carbide, sodium tetraborate and hydroxyapatite to the base material for dry mixing to obtain a mixed powder; adding deionized water to the mixed powder to prepare a spherical green body; drying the spherical green body to obtain a dry green body; and performing sintering treatment on the dry green body, and cooling to room temperature to obtain solidified lithium slag ceramsite. The method realizes nuisance-free treatment of lithium slag, simplifies the treatment process, reduces environmental damage, and improves the resource utilization of lithium slag.

This invention discloses a method for depositing hydroxyapatite in a three-dimensional porous sample, comprising: S1, pretreatment of the three-dimensional porous sample; S2, placing the three-dimensional porous sample in an O... 2 In a plasma spraying apparatus; S3, prepare SBF1, immerse the sample treated in step S2 into SBF1, seal the container tightly, and place it in an incubator. After immersion in SBF1, remove the sample, wash and dry it. SBF1 contains the following components: CaCl2, MgCl2·6H2O, NaHCO3, K2HPO4·3H2O, Na2SO4, KCl, and NaCl; S4, prepare SBF2, immerse the sample treated in step S3 into SBF2, seal the container tightly, and place it in an incubator at 37°C. SBF2 contains the following components: NaCl, CaCl2, and K2HPO4·3H2O; S5, remove the sample, wash and dry it to obtain a three-dimensional porous sample with deposited hydroxyapatite. The method provided by this invention uniformly deposits HA in the porous three-dimensional void surface, and the composite interface can accelerate early bone healing, increase the integration of the bone implant surface with the bone, and promote the early stability of the implant.

The application discloses an integrated hydroxyapatite photodisruption device based on vortex vector light field regulation technology, which utilizes vortex vector light field regulation technology and vector diffraction theory principles to realize efficient decomposition of hydroxyapatite in emergency, meets high requirements for speed and precision in surgery, avoids sample heating, and reduces operation complexity and danger. Compared with the prior art, the device is small in size, convenient to flexibly use in medical and cosmetic surgery, fills the blank in the key field, and adopts integrated optical technology to ensure the precision and stability of the system, and is suitable for large-scale application.

The utility model belongs to aviation fluid conveying component technical field especially, it is a kind of airplane dry metal pipe, including the function inner layer, support intermediate layer and protective outer layer that are sequentially arranged from inside to outside, the function inner layer, support intermediate layer and protective outer layer are integrally formed by 3D printing technology, metallurgical combination is formed between each layer, the inner wall of function inner layer is coated with hydrophilic coating, the outer surface of protective outer layer is coated with oxidation-resistant coating. This airplane dry metal pipe, by setting function inner layer, improve dry efficiency and reliability double promotion, the honeycomb micropore (50-200 μm) of function inner layer and axial water guide groove form "adsorption-dredge" closed loop, cooperate hydroxyapatite hydrophilic coating, moisture adsorption rate is improved by more than 30%, humidity in pipe can be stably controlled below 5%, solve the technical problem that the existing dry metal pipe manufacturing process limit, function structure is difficult to integrate.

The application discloses a high-activity, high-selectivity, low-price and non-toxic photo-thermal catalytic reduction carbon dioxide catalyst, and relates to the technical field of catalysts.The photo-thermal catalytic reduction carbon dioxide catalyst is composed of tricobalt tetroxide and hydroxyapatite, the tricobalt tetroxide is loaded on the surface of the hydroxyapatite, and a solid hindered Lewis acid-base pair catalyst cobalt-hydroxyapatite is formed.The low cost, low toxicity, stability and scalability of the photo-thermal catalytic reduction carbon dioxide catalyst Co-HAP make it a very promising candidate for large-scale carbon dioxide reduction, the synthesized material can be sold commercially as an industrial RWGS photocatalytic product, the discovery of the feasible catalyst material is a key step for the carbon dioxide catalysis, and further development of the catalyst material will have a great influence, especially in the aspects of climate change and renewable energy technology.

This invention discloses a fluorite crystal impurity leachate based on microbial metabolites and its preparation process, relating to the field of fluorite crystal impurity leachate preparation technology. The raw materials include: microbial metabolic fermentation broth, chelation solution, synergistic solution, modified glucosamine magnesium phosphate microsphere slurry, modified hydroxyapatite nanosphere slurry, modified hydroxypropyl methylcellulose ether slurry, and deionized water. In this invention, the addition of modified glucosamine magnesium phosphate microsphere slurry significantly improves the dispersibility and stability of the microspheres, enabling in-situ adsorption of free fluoride ions in the system, eliminating the inhibitory effect of fluoride ions on microbial metabolism, and simultaneously helping to stabilize the pH of the leaching system, providing a suitable environment for impurity leaching. It also synergistically enhances the solid-liquid separation effect without reducing the grade of fluorite concentrate. The addition of modified hydroxyapatite nanosphere slurry provides excellent selective adsorption capacity, preferentially adsorbing difficult-to-remove impurities such as quartz and silicates, improving the precision of deep impurity removal.

The application discloses a novel hydroxyapatite photodisintegration device based on vortex vector light field regulation technology, which utilizes vortex vector light field regulation technology and vector diffraction theory principles to realize efficient decomposition of hydroxyapatite in emergency, meets high requirements for speed and precision in surgery, avoids sample heating, and reduces operation complexity and danger. Compared with the prior art, the device has simple structure, is convenient to flexibly use in medical and cosmetic surgery, fills the blank in this key field, and adopts integrated optical technology to ensure the precision and stability of the system, and is suitable for large-scale application.

The application discloses a lithium-fluorine co-modified hydroxyapatite interface solid-state electrolyte and a preparation method thereof, and belongs to the technical field of high-voltage solid-state lithium metal batteries. The electrolyte has an asymmetric three-layer structure, and comprises a middle polymer matrix layer, a negative electrode side Li2ZrF6 modified layer and a positive electrode side Li,F-HAP functional interface layer. The positive electrode side Li,F-HAP interface layer has a flower-shaped porous structure, provides a continuous ion transmission channel and serves as a physical and chemical barrier to inhibit high-voltage side reactions. The ionic conductivity of the composite electrolyte is as high as 9.16*10 ‑4 S·cm ‑1 , the lithium ion transference number is 0.60, and the electrochemical stability window reaches 4.45 V. A lithium symmetric battery assembled by using the electrolyte is stably cycled for more than 650 h under a current of 0.2 mA*cm ‑2 , and the capacity retention rate of an NCM811 full battery is more than 78% under a current of 0.5 C. The technology significantly improves the high-voltage adaptability and cycle stability of the solid-state lithium metal battery.

This invention relates to the field of industrial packaging materials technology, specifically to a biodegradable multi-layer composite puncture-resistant packaging bag and its preparation method. The bag comprises, from the inside out, a biodegradable sealing inner layer, a puncture-resistant reinforcing layer, and a biodegradable wear-resistant outer layer, which are hot-pressed together using a biodegradable adhesive. The puncture-resistant reinforcing layer is made of hydroxyapatite-modified biodegradable polylactic acid fiber woven mesh; the sealing inner layer is a blend of polycaprolactone and polybutylene succinate; and the wear-resistant outer layer is a bamboo fiber-reinforced polylactic acid composite material. The packaging bag prepared by this invention possesses excellent puncture resistance, sealing performance, and mechanical strength, and all components are biodegradable, solving the technical problems of easy breakage and difficult degradation of traditional plastic packaging bags. This invention also provides a preparation method for this packaging bag, which is simple and controllable, suitable for large-scale production, and has good economic and environmental benefits.

[ABSTRACT] The present invention relates to a glass ceramic composition comprising SiO2, Ca(OH)2, CaF2, B2O3, MgO, and hydroxyapatite; a bioactive crystallized glass ceramic comprising each of CaSiO3, Ca10(PO4)6(OH)2, and CaMgSi2O6 in an amount of 20% to 60% by weight; an implant for early osseointegration comprising the glass ceramic; and a method for manufacturing the implant. [ABSTRACT] The present invention relates to a glass ceramic composition comprising SiO2, Ca(OH)2, CaF2, B2O3, MgO, and hydroxyapatite; a bioactive crystallized glass ceramic comprising each of CaSiO3, Ca10(PO4)6(OH)2, and CaMgSi2O6 in an amount of 20% to 60% by weight; an implant for early osseointegration comprising the glass ceramic; and a method for manufacturing the implant. 1 / 5 [DRAWINGS] [Fig. 1] [Fig. 2] 1 / 5 [DRAWINGS] [Fig. 1] Hydroxylapatite=53.2% Wollastonite-2M=20.8% Diopside=26.0% Wt% [Fig. 2] Na not included, Wollastonite # Diopside Sintered at 1050°C Na not included, SiO 2 Sintered at 970°C Same Phase Na included, Wollastonite # Diopside Sintered at 970°C 20 25 30 35 40 2 Theta (deg) CuKa This data, for application number 2019462312, is current as of 2026-06-05 08:40 AEST Wollastonite-2M=20.8% Diopside=26.0% Wt% Intensity (Arb. unit) Same Phase Sintered at 970°C 20 25 30 35 40 20 26 20 52 96 06 J ul 2 02 6 2 0 2 6 2 0 5 2 9 6 0 6 J u l 2 0 2 6 W o l l a s t o n i t e - 2 M = 2 0 . 8 % W t % I n t e n s i t y ( A r b . u n i t ) S a m e P h a s e S i n t e r e d a t 9 7 0 ° C 2 0 2 5 3 0 3 5 4 0

This invention belongs to the field of polymer composite materials technology, specifically relating to a damping and vibration-damping polycarbonate material and its preparation method, as well as a sound insulation felt. The damping and vibration-damping polycarbonate material comprises: a polycarbonate matrix, a modified hydroxyapatite-grafted polyurea composite, a compatibilizer, a flame retardant, and an antioxidant; wherein the modified hydroxyapatite-grafted polyurea composite is prepared by chemically bonding silane coupling agent-modified hydroxyapatite with a polyurea prepolymer. This invention effectively solves the problems of filler migration and poor interfacial compatibility in traditional physically blended damping materials by chemically grafting modified hydroxyapatite onto the polyurea molecular chain. While maintaining the mechanical properties of the polycarbonate matrix, it significantly improves broadband damping performance and sound insulation effect. The sound insulation felt prepared from this material has excellent broadband vibration reduction and noise reduction capabilities and can be widely used in the automotive, rail transportation, construction, and high-end electronic equipment fields.

This application discloses a nerve conduit, comprising: mineralized collagen nanofibers doped with active elements; the mineralized collagen nanofibers containing hydroxyapatite crystals; the calcium element in the hydroxyapatite crystal lattice being replaced by a cation containing the active element, and / or, the phosphate group in the hydroxyapatite crystal lattice being replaced by anion containing the active element; the nerve conduit provided by this application, by introducing dopant elements, allows the cations or anions of the dopant elements to be effectively and controllably released from the phosphorus or calcium in the hydroxyapatite lattice of the mineralized collagen nanofibers, thereby effectively promoting the regeneration of human tissues such as nerves and blood vessels compared to nerve conduits without dopant elements.

The application discloses a glass ceramic dental crown and a preparation method thereof, and relates to the technical field of glass ceramic dental crown. The preparation method adopts lithium disilicate as a base material, and is combined with rare earth doped hydroxyapatite and functional crystals. By accurately controlling the synergistic ratio of each component, the unity of mechanical properties, biological adaptability and aesthetic effect is realized. The rare earth doped hydroxyapatite is prepared by a hydrothermal precipitation method, the dispersion effect of trisodium citrate is used to inhibit particle agglomeration and promote the interface combination with human hard tissues; and the rare earth doped fluorescent powder is used to construct monodisperse light emitting centers by controlling a rare earth ion doping process, so that concentration quenching is avoided, and the fluorescent properties close to natural teeth are given to the dental crown.