145 results about "Synthetic materials" patented technology

The invention discloses composite hydrogel bio-ink with a function of space-time delivery of double growth factors as well as a preparation method and application of the composite hydrogel bio-ink, and belongs to the technical field of biomedical materials and tissue engineering. According to the preparation method, imidazolyl-modified methacrylated gelatin and double-bonded PF127 are compounded, and meanwhile, free vascular endothelial growth factors and connective tissue growth factor-loaded PLGA microspheres are entrapped in a system, so that the bio-ink with excellent printability, high adhesion, swelling resistance and space-time delivery function is formed; the bio-ink physically has the advantages of high printing fidelity, low swelling property, high mechanical strength and strong tissue adhesion of a synthetic material; in biology, the system can be used as an intelligent carrier to realize programmed space-time delivery of various growth factors, so that complex cell biological behaviors are accurately arranged, and real regeneration of functional tissues is guided.

An interchangeable stock panel insert system for attaching accessories to a firearm such as a long gun comprises an elongated stock formed of synthetic material including a forestock configured to support a receiver of the firearm. The forestock includes an internal longitudinal cavity forming an elongated longitudinal aperture at the bottom which provides injection molding benefits described herein to yield more uniform stock wall thicknesses. The forestock includes a singular mounting interface defined at the longitudinal aperture configured to detachably couple a plurality of different stock panel inserts thereto to enclose the bottom aperture and form part of the completed forestock. The panel inserts share a common mounting configuration compatible with the singular mounting interface of the forestock so as to be interchangeably mountable to the forestock. At least some of the stock panel inserts include an accessory rail for mounting various types of firearm accessories thereto.

The present application relates to a kind of composite rotator cuff patch and its preparation method and application, belong to the field of biomaterials technology.The structure layer and biological layer are all biological medical materials, do not need to introduce crosslinking agent, and by the structure layer and biological layer alternate composite design, avoid the problem that traditional synthetic material is not degradable or short degradation period, with controllable degradation period, improve the tear resistance and mechanical support of patch, effectively reduce the risk of inflammatory response, improve the biocompatibility and safety of patch, finally realize the applicability and effect of improving composite rotator cuff patch in clinical application.

The application discloses an oral nano-vaccine and a preparation method and application thereof, and relates to the technical field of immunology, and specifically discloses an oral nano-vaccine which comprises a nano-particle wrapped by a biomimetic bacterial membrane vesicle and an outer layer; the nano-particle comprises an antigen and a biodegradable polymer material; the biomimetic bacterial membrane vesicle comprises an ionizable flagellar lipoprotein, an immune adjuvant, a phospholipid, a sterol lipid and a polyethylene glycol lipid; and the outer layer is a pH-responsive polymer. The oral nano-vaccine provided by the application combines the immune activation advantages of natural bacterial membrane vesicles and the precise regulation characteristics of synthetic materials, significantly improves the transmembrane penetration capacity of the antigen in the intestinal epithelium and the overall activation effect of the mucosal immune system. The oral nano-vaccine provided by the application can protect the antigen and the immune adjuvant from degradation and realize precise release in the intestinal microenvironment; and the oral nano-vaccine significantly improves the bioavailability and safety of an oral tumor vaccine, and lays a key technical foundation for clinical transformation and large-scale production of the oral tumor vaccine.

A patch containing lotus root fibers is formed by covering collagen layers on the two sides of a lotus root fiber hydrogel synthetic material, the lotus root fiber hydrogel synthetic material is obtained by fusing 20-40 parts by mass of lotus root fibers (3) and 60-80 parts by mass of a hydrogel substrate, and the prepared patch has excellent mechanical properties, and can be used as a patch for repairing the skin. The problem that the abdominal pressure of a patient is excessively increased due to cough, defecation and the like after an operation is effectively solved, displacement and tearing are prevented, and the repair success rate is increased.

The invention relates to a microbial single-cell gelation encapsulation method based on aloe gel and application, the method realizes single-cell gelation encapsulation through electrostatic interaction of sterile aloe gel and intestinal anaerobic bacteria (such as Agathobacter rectasis), and the method comprises the specific steps of aloe gel preparation, bacterial suspension culture and oscillation mixing to form a stable structure. The preparation method has the advantages that the acid resistance and biocompatibility of the natural aloe gel are utilized to replace a traditional synthetic material, so that the gastrointestinal tolerance of thalli is improved; meanwhile, the synergistic effect of aloe active ingredients (such as aloe-emodin) and intestinal bacterial metabolites (butyric acid) is combined, so that the anti-inflammatory and intestinal steady-state regulation and control effects are enhanced. Experiments show that the survival rate of the encapsulated bacteria in simulated gastric juice within 4 hours is larger than or equal to 90%, the intestinal colonization rate is effectively increased compared with naked bacteria, the inflammatory factor level of a colitis model mouse can be remarkably reduced, and a safe and efficient new strategy is provided for micro-ecological treatment of inflammatory bowel diseases.

The utility model discloses a water soluble paraffin removal ball, which relates to the technical field of paraffin removal balls and comprises a paraffin removal ball body, a cleaning agent storage component is mounted in the paraffin removal ball body and comprises a storage tank, a through hole, a chemical cleaning agent and a water soluble plastic film, the paraffin removal ball comprises a paraffin removal ball body, a storage groove is formed in the paraffin removal ball body, the storage groove is filled with a chemical cleaning agent, a plurality of through holes are formed in the outer side of the paraffin removal ball body and penetrate through the inner wall of the storage groove, and a water-soluble plastic film is installed on the inner side of one end of each through hole. The synthetic material of the paraffin removal ball body is ethylene vinyl acetate, and the paraffin removal ball body can be dissolved in a crude oil environment, so that the paraffin removal ball body can be automatically dissolved in an oil pipe after being used for 24 hours, the oil pipe is prevented from being blocked, the paraffin removal ball does not need to be found, and the paraffin removal ball is more convenient to use.

The present application relates to the field of chemical synthetic materials and catalysis, and particularly relates to a metal-amorphous structure chalcogenide core-shell nanocrystal and a preparation method and application thereof.The preparation method comprises the following steps: (1) synthesizing Au nanorods through a seed growth method; (2) coating silver on the surface of the Au, and epitaxially growing a silver shell layer nanocrystal; and (3) sulfidizing the silver shell layer nanocrystal, and performing hydrothermal cation exchange to obtain a core-shell structure nanocrystal.In the metal-amorphous structure chalcogenide core-shell nanocrystal, the amorphous surface to a certain extent is conducive to adsorbing reaction substrates, and promotes the progress of the photocatalytic carbon dioxide reduction reaction.The metal-amorphous structure chalcogenide core-shell nanocrystal has excellent gas-solid phase photocatalytic carbon dioxide reduction performance, and can achieve good effects without a photosensitizer and a sacrificial agent.

A material synthesis apparatus includes: at least one device configured to synthesize a material; a user interface configured to obtain information on a target product; and a processor, wherein the processor is configured to: determine synthesis conditions for preparing the target product using a pretrained synthesis prediction model; calculate a first synthesis method for preparing the target product based on the synthesis conditions; and control the at least one device based on the first synthesis method.

The present application relates to the technical field of housings of electrical equipment, manufacturing of synthetic materials, coatings and the like, and provides an electrical equipment housing, a sub-film texture coating and a preparation method thereof, the electrical equipment housing has a decorative effect, the sub-film texture coating is used to form the decorative effect, and the sub-film texture coating comprises: 20-30% of polyurethane UV3 resin in terms of weight percentage, 40-60% of silicon modified 15 functional resin in terms of weight percentage, 10-20% of polyurethane acrylic resin in terms of weight percentage, 2-10% of hexanediol diacrylate in terms of weight percentage and 0.1-1% of a photoinitiator in terms of weight percentage. The VOC emission of the sub-film texture coating is very low, the environmental friendliness of a texture setting process of the electrical equipment housing can be improved, and the sub-film texture coating has good stretchability.

Embodiments of the present disclosure describe materials and methods of synthesizing materials comprising a metal component, a first polytopic ligand, and a second polytopic ligand that associate to form an intricate mixed-linker structure with a merged-net. Merged nets may be formed from two 3-periodic edge-transitive parent nets that share a common signature net, wherein at least one parent is an embedded three-dimensional representation of a two-periodic (2p), one-periodic (1p), or zero-periodic (0p) net. The approach enables deliberate construction of multicomponent reticular materials that retain two distinct linker types and realize merged-net topologies from parent nets derived from 2p, 1p, and 0p nets.

The utility model discloses chemical synthetic material analysis and inspection equipment which comprises a base station, a material injection assembly used for conveying chemical synthetic materials to be detected is installed on one side of the top of the base station, and a feeding assembly used for placing the chemical synthetic materials to be detected is installed at the position, corresponding to the material injection assembly, of the top of the base station. According to the utility model, not only can the continuous and stable conveying of the chemical synthetic material to be detected be realized, but also the waiting time in the detection process can be obviously reduced, the detection efficiency can be improved, and the large-scale and high-efficiency chemical synthetic material analysis and detection requirements can be met by adopting the continuous conveying mode, and meanwhile, the height of the injection head can be flexibly adjusted; the sample bottles with different heights can be accurately matched, equipment replacement or complex adjustment operation is not needed, the waste and leakage phenomena of chemical synthesis materials can be effectively reduced, and then the applicability and flexibility of the equipment are enhanced.

Medical garment for Parkinson's patients using an apomorphine pump. The invention of this vest model allows Parkinson's patients to wear their apomorphine treatment device in a garment specifically designed for their comfort, replacing the elastic belt usually supplied with the medication. The apomorphine pump device comes with a pouch and a belt, made of synthetic material and generally worn directly against the skin, which causes heaviness and discomfort for the patient, as well as a risk of the tubing detaching.The solution I propose involves manufacturing a vest made of hypoallergenic material, equipped with pockets and an opening system adapted to the apomorphine pump. This allows for: easier handling of the device by both the patient and the nurse; an improved dressing process thanks to a separating zipper opening on the front of the vest; enhanced security for the medical device, which is thus protected under the vest; and discreet clothing. This medical garment, according to the invention, is specifically designed to improve the comfort and quality of life of Parkinson's patients using an apomorphine pump. The attached drawing sheet contains sketches illustrating the vest design and its functionalities.[Fig. 1] shows the vest from the front (1), equipped with a separating zipper allowing for full front opening (2), and two rectangular zippered pockets sized to accommodate the apomorphine pump (3). The pockets have vertical zippers to facilitate insertion and removal of the pump when it is necessary to check the flow rate or administer a bolus (4). The tubing is thus secured inside. [Fig. 2] shows the vest open. The entire medical device connected to the catheter—syringe, tubing, and pump—is inserted into the pocket through a slit in the vest fabric, just behind the pocket. (1) [Fig. 3] shows a close-up of the device on the right pocket. This is a cross-section of the pocket viewed from the inside (1). An opening (slit) is made on the inside of the vest, at the back of the pocket, to allow the passage of the device: pump + syringe + tubing (2).The device is connected to the catheter (3). The entire device is then placed at the bottom of the zippered pocket. [Fig 4] shows the position of the medical device on the male body when placed in the pocket of the POMPIPOCHE vest. [Fig 5] shows the position of the medical device on the female body when placed in the pocket of the POMPIPOCHE vest. [Fig 6] shows an image of the medical device as it is positioned.

The utility model discloses an ultralow-torque rotation-resistant steel wire rope, which relates to the technical field of steel wire ropes, and adopts the following scheme that the ultralow-torque rotation-resistant steel wire rope comprises an inner core rope, an inner hinged steel wire is rotatably wound outside the inner core rope, an outer hinged steel wire is reversely and rotatably wound outside the inner hinged steel wire, and lubricating grease is coated between the outer hinged steel wire and the inner hinged steel wire; the inner core rope is arranged and is made of a high-strength and low-elongation synthetic material, so that the tensile strength and the extrusion resistance of the steel wire rope are improved, and the use safety of stress stretching is ensured; a multi-layer strand structure is formed by adopting a special twisting process, the twisting directions of all layers of steel wires are opposite, the overall torque of the steel wire rope is effectively reduced, the problem of twisting and winding is avoided, the steel wires have high strength and toughness after heat treatment, the surfaces of the steel wires are coated with lubricating grease or anti-rust oil, friction and abrasion between the steel wires are reduced, and the service life of the steel wire rope is prolonged. And the service life of the steel wire rope is effectively prolonged.

A flexible hose includes a tubular layer made from a synthetic material and a plurality of metal electrical conductors arranged parallel to one another and to the axis of the flexible hose. The interruption of at least one of the metal electrical conductors in case of an excessive expansion of the flexible hose signals the deterioration and imminent rupture of the flexible hose. The metal electric conductors are exposed in the cross section of the terminal parts of the flexible hose and can be placed in contact with two terminal elements provided with electrical contacts for electrically connecting two conductors positioned side by side and achieving the electrical continuity of all the metal electrical conductors. Intermediate devices can be provided for connecting a terminal of the first flexible hose with the terminals of the adjacent flexible hoses as well as with the power source and the control system.

The invention relates to a flexible polyurethane panel with an integrated polyvinyl chloride skin, which comprises a panel main body, the panel main body comprises a polyurethane body and a polyvinyl chloride skin, the polyurethane body is formed by reaction of polyether polyol and isocyanate according to a weight ratio of 40: 60-60: 40, and the density of the polyurethane body is 100-400kg / m < 3 >; the thickness of the polyvinyl chloride skin is 0.05-0.30 mm, and the polyvinyl chloride skin and the polyurethane body are integrally formed and seamlessly bonded; comprising the following steps of heating, film laying, mixing and curing. According to the invention, the polyvinyl chloride film is used as the skin, and the closed-pore structure of the polyurethane body is combined, so that the waterproof rate of the panel is greater than or equal to 95%, and the water seepage phenomenon is avoided after 24-72 hours of water soaking test, thereby effectively solving the problem of water seepage of the wall surface; meanwhile, the product is made of fully synthetic materials and does not contain nutritional ingredients needed by termites and moths, insect repellents can be selectively added, the 100% termite-resistant and moth-resistant effects are achieved, and the service life of the material in a humid and insect-rich environment is remarkably prolonged.

The utility model discloses an amorphous stator core for a new energy motor, which relates to the technical field of motors and comprises a stator core made of amorphous synthetic materials, the stator core comprises a plurality of core laminations, the plurality of core laminations are overlapped to form the stator core, a rotor support is arranged in the center of the interior of the stator core, and the rotor support is connected with the stator core. And a plurality of winding supports are arranged outside the stator core. Compared with a traditional silicon steel sheet stacking structure, the amorphous stator iron core is formed by laminating thin-layer amorphous strips, magnetic hysteresis loss and eddy current loss are reduced, the loss of the iron core is reduced, the motor can achieve high output power under the condition of low current and magnetic field, and the service life of the motor is prolonged. The magnetic performance of the amorphous material is very excellent in a high-frequency working environment, and the overall efficiency of the motor is optimized by utilizing lower eddy-current loss and hysteresis loss of the amorphous material under a high-frequency condition.

The present invention provides a chitosan-based composition that can be converted into a self-supporting casted object having good tensile and compressive strength that can also biodegrade at the end of its lifecycle. The composition comprises entirely bio-based or bio-sourced reagents that can be converted to the final product via a polymerization process that does not require the addition of inorganic catalysts, synthetic materials, or otherwise hazardous chemicals to strengthen or modify its water resistance.

This application relates to hydrogel substrates for growing biological materials including, but not limited to, plants, fungi, and bacteria. In some embodiments, this application provides a platform for optimizing the growth of biological materials using various forms of hydrogel substrates. In other embodiments, this application provides methodologies and compositions for growing biological materials such as plants in a hydrogel substrate blend comprising a hydrogel substrate and one or more of the following: soil, cocoa, peat moss, rock wool, wood, wood chips or mulch, wood fibers, processed wood fibers, tree fibers, hemp, bamboo, bark, sand and sand grains, perlite, pumice, clay, vermiculite, biochar, natural or processed raw materials, and / or synthetic materials. In other embodiments, this application provides methodologies and compositions for growing biological materials such as plants in a hydrogel-bound plug, the hydrogel-bound plug does not contain synthetic adhesives or synthetic glues.

To provide a photosensitive colored composition less liable to cause wrinkles in curing, excellent in developability and pattern forming property and having high light shielding property.SOLUTION: The photosensitive coloring composition includes a colorant (A), alkali-soluble resins (B) including photosensitive alkali-soluble resins (B1), a polymerizable compound (C), a photopolymerization initiator (D), and a heat-curable compound (E). The coloring agent (A) contains a halogenated zinc phthalocyanine pigment (A1) having an average number of halogen atoms of 10-14 in one molecule, of which an average number of bromine atoms is 8-12 and an average number of chlorine atoms is 2-5, and a metal azo pigment (A2) containing a compound represented by formula (1) or a tautomer thereof and a compound represented by formula (2).SELECTED DRAWING: Figure 1

The invention discloses a dual-module sericin-based composite microsphere and a preparation method and application thereof.The dual-module sericin-based composite microsphere comprises an inner core and a shell coated on the outer surface of the inner core, the inner core is a sericin template mineralized ZnSr-Se-HA nano-particle, the shell is a tea polyphenol-cerium EGCG-Ce metal phenolic aldehyde coating, and the outer surface of the inner core is coated with the ZnSr-Se-HA nano-particle. The sericin-based composite microspheres (SeHA-EC) with ZnSr-Se-HA nanoparticles as an inner core and an EGCG-Ce metal phenolic aldehyde coating as a shell are prepared through an electrostatic microfluidic technology. The composite microsphere takes natural sericin as a substrate, has good biocompatibility, and can avoid foreign matter reaction caused by traditional synthetic materials; the particle size of the composite microsphere is controllable, and the dissection requirement of the periodontal pocket can be met; according to the composite microsphere, a strontium / zinc multi-ion therapy is combined with metal phenolic aldehyde, so that multi-target intervention of oxidation resistance, immunoregulation and angiogenesis and osteogenesis is realized.

The embodiment of the invention provides a preparation method of nitrogen-defect g-C3N4 and a catalytic performance regulation and control method, and relates to the technical field of catalytic performance regulation and control of g-C3N4. The preparation method of the nitrogen defect g-C3N4 comprises the following steps: step S1, preparing bulk phase g-C3N4; and S2, dividing the bulk phase g-C3N4 obtained in the step S1 into a plurality of parts, and adding ammonium chloride with different weights into each part of the bulk phase g-C3N4 to synthesize g-C3N4 with different nitrogen content defects. The preparation method has the advantages of simple synthesis process, low cost of synthetic materials, environmental protection and the like.

The application relates to a cartilage repair implant, belonging to the field of cartilage repair technology, which comprises an implant body and a deployment assembly, the implant body is used for penetrating through cartilage to be repaired and embedding into bone tissue, the deployment assembly is arranged on the side wall of one end of the implant body close to the bone tissue, and the deployment assembly is used for abutting against the bone tissue. The application has the effects of improving the stability of the implant body on the cartilage, guaranteeing the repair of the cartilage and improving the problem that an artificial synthetic material is easy to be taken out after being installed on the cartilage.

The application relates to the technical field of inorganic non-metallic materials and building decoration materials, in particular to a sintering forming method of a nanometer powder modified jade crystal stone synthetic material, which comprises the following steps: S1, preparing a nanometer powder modified mother glass raw material: preparing a basic glass component by taking industrial solid waste as a main raw material, and adding nanometer powder as a functional modified component; the nanometer powder comprises nanometer TiO2 and / or nanometer ZrO2, and the average particle size of the nanometer powder is 20nm-100nm; S2, establishing a material thermophysical parameter database of the nanometer powder modified microcrystalline glass, including thermal conductivity, specific heat capacity, density, thermal expansion coefficient, crystallization activation energy and Avrami index. Through gradient crystallization control technology and the synergistic densification effect of nanometer powder-crack glass, in combination with numerical simulation optimization, the surface porosity of the microcrystalline stone product can be reduced to below 0.5%.

The utility model provides a locknut, which relates to the technical field of fasteners, and comprises a first locknut, one side of the first locknut is movably connected with a second locknut, linings are fixedly connected in the first locknut and the second locknut, one end of the first locknut far away from the linings is provided with a spring washer, and the other end of the first locknut far away from the linings is provided with a spring. The first locknut, the spring washer and the second locknut are movably connected in sequence. According to the utility model, on one hand, the inner side of the nut is provided with the special synthetic material with high-temperature resistance to replace a nylon bushing, so that the stability of the bushing in a high-temperature environment is effectively improved, the problems of softening and deformation caused by too high temperature are avoided, and the continuous and effective locking effect is ensured; and on the other hand, the spring washer is arranged to keep a stable locking effect, and looseness or abrasion caused by repeated use is reduced, so that the service life of the device is prolonged, and the reliability of the locking effect in long-term use is ensured.

The utility model relates to the technical field of chemical synthetic material processing, and discloses a raw material stirring device for chemical synthetic material processing, which comprises a stirring barrel, a transmission assembly arranged on the outer side of a cover body, and a stirring assembly arranged on the outer side of the cover body, the first stirring rod is used for stirring materials in the stirring barrel, the first stirring rod drives the bevel gears on the outer side of the first stirring rod to rotate, the two bevel gears are meshed, the second stirring rod is driven to rotate, materials on the edge of the stirring barrel are stirred, and meanwhile the first stirring rod drives the first gears on the outer side of the first stirring rod to rotate; the first gear is meshed with the second gear to drive the second gear to rotate, the second gear drives the third gear at the bottom of the second gear to rotate, the third gear is meshed with the gear ring to drive the gear ring to rotate, the gear ring drives the connecting seat to rotate on the sleeve, and the connecting seat drives the second stirring rod to do circular motion, so that the mixing efficiency of materials in the stirring barrel is improved.

The invention belongs to the technical field of nano materials, and discloses a preparation method of a high-stability strong-chlorine-resistance MOF-based seawater electrolysis catalyst. The preparation method comprises the following steps: (1) treating product substrate foamed nickel; (2) preparing a synthetic material from ferric salt, nickel salt, p-toluic acid, p-nitrobenzoic acid, water, ethanol and N, N-dimethylformamide; and (3) synthesizing the final nitro functionalized NiFe-MOF-PNBA (at) NF through a hydrothermal method. When the electrocatalytic material is applied to an alkaline real seawater oxygen evolution reaction, the catalytic performance is better, and higher operation stability can be kept under high current density. In addition, the prepared catalyst also shows excellent electrolytic stability, and the stability can be maintained for more than 4000 hours under the current density of 1.5 A / cm < 2 >.

The present invention relates to a cooking plate (10) for a fixed or movable cooking appliance, the cooking plate comprising a base plate (11) having at least one cooking area and including at least one control and / or information area formed by a window (140) separated from the base plate by at least one connecting part (182) made of synthetic material, characterized in that the window is fixed to the base plate by a fastening system (18) comprising: the connecting part arranged between the window and the base plate; and a connecting support (180) forming a mold together with the base plate and the window, wherein the material forming the connecting part is injected into the mold.

The utility model relates to the technical field of floors, and discloses a high-strength floor, which comprises a decorative wood board layer, a PVC (polyvinyl chloride) composite layer, a wet carbon fiber nylon cloth interlayer, an oak impregnated layer and a wood-plastic layer which are sequentially formed in a hot-press gluing manner from top to bottom. The wet carbon fiber nylon cloth interlayer is formed by weaving at least two layers of plain carbon fibers perpendicular to each other in direction, and a plurality of rhombic blind holes are formed in the bottom wall of the wood-plastic layer at intervals to improve friction force. Compared with a floor made of raw wood, according to the characteristics of existing wood and the performance of the existing wood at different temperatures and humidity, existing high polymer materials and carbon fiber synthetic materials are supplemented, the contact face can be kept to be of a wood structure, and meanwhile the contact face can be made into a whole. And the device effectively adapts to the use environment with larger humidity span and temperature span, and the long-time working strength of the plate is guaranteed.

This invention relates to the field of engine technology and discloses an engine control method and an electronically controlled engine. The control method is applied to an electronically controlled engine equipped with a closed-loop breather. The control method includes: in response to an ignition switch on signal, the engine controller acquires the vehicle speed; when the vehicle speed is 0, the engine controller performs the following steps: acquiring the difference between the crankcase internal pressure and the atmospheric pressure; if the difference is greater than 0 and exceeds a first threshold, controlling the electronically controlled engine to shut down; if the difference is greater than 0 and does not exceed the first threshold, and the difference persists for a first preset time, controlling the electronically controlled engine to shut down. This solution can reduce or even avoid situations such as synthetic material oil pan cracking, valve cover cracking, and oil seal bulging.