30results about How to "Flexible and easy" patented technology

The invention relates to a composite antibacterial material of graphene quantum dot and fibroin, preparation and application. The composite antibacterial material of graphene quantum dot and fibroin is characterized in that the mass ratio of the graphene quantum dot or doped graphene quantum dot to the fibroin is 1:1 to 1:10000; the doped graphene quantum dot is a non-metallic compound, a metallic compound or an organic compound, which contains a doping atom, has weak oxidization or reduction property, or is easy to coordinate; the concentration of a dopant is 0.01-10 mM; and the molecular weight of the fibroin is 1000-10000000 Da. The composite antibacterial material disclosed by the invention has the capability of greatly generating hydroxyl radicals having antibacterial capability under visible light or in a dark field; particularly, the composite material of B-doped graphene quantum dot and fibroin has excellent antibacterial capability; and thus, the composite antibacterial material used as an in-vivo antibacterial material or a wound suture material can be directly used in living bodies.

The method relates to a flexible temperature sensor and a preparation method thereof. A pectin film is adopted to serve as a temperature sensing material of the temperature sensor, and xanthan gum isadded to improve the flexibility of the film and to increase the responsibility of the film. PDMS is adopted to serve as flexible transparent substrates on an upper layer and on a lower layer. An electrode of the sensor is prepared through sputtering, and electric shocks can be led out through a carbon belt or copper foil. The flexible temperature sensor based on a pectin / xanthan gum blend film has a simple structure, exhibits high sensitivity, good flexibility and good biological compatibility, and can be greatly applied in the field of electronic skin and human body temperature measurement.Moreover, raw materials are easy to obtain, so mass production of the flexible temperature sensor can be realized.

The invention discloses an epoxy resin composite based on toughening modification. The epoxy resin composite based on toughening modification comprises 100 parts of epoxy resin, 25-45 parts of modification toughening agent, 10-30 parts of reinforcing toughening agent, 0.1-0.4 part of accelerant and 40-60 parts of curing agent. The modification toughening agent is polyurethane or polysulfone. The reinforcing toughening agent is nanometer silicon dioxide. The epoxy equivalent of the epoxy resin is 110-200 g / eq. The epoxy value of the epoxy resin is 0.50-0.94 eq / 100 g. The viscosity of the epoxy resin is 0.1-0.13 Pa. s. Through compound toughening of the epoxy resin, the epoxy resin composite is high in adhesion strength, good in tenacity and good in heat resistance.

The invention relates to a sand-in-water coating and a preparation method thereof. Raw materials of the sand-in-water coating comprise a dispersion phase and a continuous phase; the dispersion phase involves, by weight, 0.5%-1% of first protection glue powder, 20%-30% of a pure acrylic emulsion, 0.4%-0.7% of hollow microspheres, 0.1%-0.5% of a first alkali swelling thickening agent, 25%-35% of quartz sand, 3%-10% of a first assistant and 25%-40% of water; the continuous phase involves, by weight, 2%-4% of second protection glue powder, 30%-50% of a silicone acrylic emulsion, 0.3%-0.6% of a second alkali swelling thickening agent, 3%-10% of a second assistant and 50%-65% of water; the proportion of the dispersion phase is 1 g / ml-1.06 g / ml; the viscosity of the continuous phase is 40 ku-55 ku. The sand-in-water coating prepared by adopting the two-phase system is low in proportion of the dispersion phase, in the processes of prilling production, mixing and storage of finished products, color points are in a suspension state, and the sedimentation phenomenon cannot easily occur. The viscosity of the coating is low, the color point separation effect is good, the production efficiency is high, the water-whitening resistance performance of the coating is good, and the viscosity is stable.

The invention relates to a screen netting of auto-cleaning screen, which belongs to the technology of industrial screen separation. The invention comprises a screen bar and a beam frame made of elastic metal. Every two screen bars are considered as a unit that is vertically up-and-down arranged. One end of the screen bar is perpendicular to and fixed on the beam frame. And the other end is in free condition. Every unit of the screen bar is arranged on the beam frame in parallel at predefined space. The invention can automatically clear meshes that are blocked by critical particles and greatly prolong the service life of the screen bar.

The invention discloses a nourishing, moisturizing and cleansing milk and a preparation method thereof. The nourishing, moisturizing and cleansing milk comprises the following components by mass: 35%to 45% of enzymolyzed ultrafiltrated rice-washing water, 15% to 25% of an amino acid surfactant, 35% to 45% of polyol, 1% to 3% of a thickening agent, 0.5% to 2% of triethanolamine, 0.5% to 5% of plant essential oil and 0.1% to 0.2% of disodium EDTA. The preparation method comprises the following steps: uniformly mixing the polyol, the thickening agent and the enzymolyzed ultrafiltrated rice-washing water, adding the disodium EDTA, carrying out uniform mixing, then adding the triethanolamine, adjusting the pH value of a formula system to 5.5 to 6.5, then adding the plant essential oil and theamino acid surfactant which are uniformly premixed, and carrying out uniform mixing, standing and defoaming. The nourishing, moisturizing and cleansing milk provided by the invention has good effect of removing oil and dirt, is rich in water-soluble vitamins, micromolecular polypeptides, amino acids and micromolecular polysaccharides which are easily absorbed by the skin, and can exert the effectsof preserving moisture, increasing skin elasticity and preventing the skin from tightening and peeling due to dryness.

The present invention proposes the preparation of a biodegradable 3D printing gel, its product and its application. The preparation method includes operations: citric acid, glycerin and water are prepared as a solution, wherein the mass ratio of citric acid, glycerin and water is 1: (2-10): (2-10); mix the glucose syrup with the solution obtained in (1), the mass ratio of the glucose syrup to citric acid is (5-9): 1; add to step (2) Gelatin is added to the obtained solution, and the mass ratio of the gelatin to citric acid is (6-12):1. The preparation method of the 3D printing gel proposed by the present invention realizes the stable processing performance and processing conditions of the gel by adjusting the ratio of water and glycerin, that is, the adjustment of the mechanical strength; the addition of citric acid can adjust the pH environment of the gel, and at the same time It can inhibit the growth of microorganisms; all selected materials are food grade, environmentally friendly and easy to degrade.

The invention discloses a continuous macroscopic graphene nanobelt fiber and a preparation method thereof. A reaction liquid with high water content is taken as a raw material, and the continuous macroscopic graphene nanobelt fiber is prepared by using the interference and cutting effects of water molecules on the growth assembly of a carbon nano tube at high temperature through a chemical vapor deposition method. In the key technology of the preparation method, the mass fraction of deionized water inside the reaction liquid is controlled within the range of 15% to 40%, preferable 20% to 35%.The graphene nanobelt fiber prepared by using the preparation method is continuous in uniformity, high in purity and high in quality. The fiber also has light weight, high strength, high conductivityand excellent flexibility, and a novel macroscopic fiber material is provided for developing flexible wearable electron devices. Moreover, the preparation method is a one-step dry spinning method, thepreparation technology is simple and easy to regulate and control, continuous preparation can be realized, and large-scale production can be realized.

The invention provides a novel thought balance drift vehicle comprising a base plate protecting cover, a left foot board, a right foot board, a state indicating lamp, a main driver, an adjusting device, a decoration lamp, a left tire protecting cover, a left tire, a left wheel driver, a right tire protecting cover, a right tire and a right wheel driver. The upper side of the base plate protecting cover is provided with the left food board and the right foot board; the main driver is installed in the base plate protecting cover; the front end of the state indicating lamp is provided with the adjusting device; the left side of the base plate protecting cover is connected with the left tire protecting cover in which the left tire is installed; the left wheel driver is installed on the left tire; the right side of the base plate protecting cover is connected with the right tire protecting cover in which the right tire is installed; the right wheel driver is installed on the right tire. The novel thought balance drift vehicle is firm in structure and high in safety and reliability; the novel thought balance drift vehicle wholly accords with man-machine engineering and is comfortable to use; the novel thought balance drift vehicle is delicate in overall form and facilitates out-going.

The invention discloses a flexible GaN-based MIS device applied to graphene. The flexible GaN-based MIS device comprises a GaN thin film layer, an AlN sputtering layer, a graphene layer and a metal electrode layer. The invention further discloses a preparation method of the flexible GaN-based MIS device applied to the graphene, the flexible GaN-based MIS device is prepared in an epitaxial growth mode, GaN serves as a semiconductor to provide local carriers, the AlN sputtering layer serves as a dielectric layer to achieve tunneling, and the graphene serves as a metal electrode to provide carriers acting with the semiconductor. The beneficial effects are that the preparation method is simple and easy to implement, has no special requirements for the substrate, can easily achieve flexibility,and can be placed on any flexible substrate and can be normally used, the performance of the GaN-based MIS device is basically not affected under the flexible condition, and the GaN-based MIS deviceand the preparation method are low in cost and easy to implement.

The invention discloses a polyurethane microcellular foam material for a railway under-rail backing plate and a preparation method thereof, the polyurethane microcellular foam material is composed of 100 parts by mass of a material A and 93-105 parts by mass of a material B. The material A is composed of 100 parts by mass of polyester polyol, 6-9 parts by mass of a micromolecule chain extender, 0.06-0.10 part by mass of a foaming agent, 0.4-0.6 part by mass of a foam stabilizer and 1.3-1.5 parts by mass of a catalyst; the material B is prepared from the following components in parts by mass: 47 to 50 parts of isocyanate and 50 to 53 parts of polyester polyol; the polyurethane microcellular foaming material disclosed by the invention has the characteristics of light weight, easiness in deformation, good folding resistance, impact resistance, easiness in molding and good buffering performance, can bear higher load, and avoids the problem of stress concentration of the under-rail backing plate; and under the stress deformation condition, the deformation is uniform, and the stress at each part is uniform, so that the service life is longer under the severe track state and huge transportation volume condition of the heavy-load existing line.

An integrated training platform for fire-fighting escape and climbing comprises a platform body which is composed of a steel frame, wherein a panel is disposed on the outer wall of the platform body; a platform is disposed on the platform body; a fence is disposed around the platform; stairs are disposed on the rear side of the platform body; an escape device is disposed on the front side of the platform body; a climbing wall plate is disposed on one or two sides on the left and right parts of the platform body; and a safety belt is disposed on the top part of the climbing wall plate. A trainee gets on the platform by the stairs; the platform on the platform body is used for standing of the trainee; the fence is disposed around the platform, so that the trainee standing on the platform can be protected from falling down and use safety is guaranteed; the escape device is disposed on the front side of the platform body; the climbing wall plate is disposed on one or two sides on the left and right parts of the platform body; and the safety belt is disposed on the upper part of the climbing wall plate, so that a climber can be protected. The training platform can be used for fire-fighting escape exercises and can also be used for climbing sport activities; the training platform has multiple functions and a high utilization rate, can fit the fire-fighting escape exercises and can also make students braver; and the training platform is applicable to climbing sports at physical education classes and has extensive applications.

The invention provides preparation, a product and application of biodegradable 3D printing gel. The preparation method comprises the steps of preparing a solution from citric acid, glycerin and water,wherein the mass ratio of citric acid to glycerin to water is 1: (2-10): (2-10); mixing glucose syrup with the solution obtained in the step (1), wherein the mass ratio of the glucose syrup to citricacid is (5-9): 1; and (3) adding gelatin into the solution obtained in the step (2), wherein the mass ratio of the gelatin to the citric acid is (6-12): 1. According to the preparation method of the3D printing gel provided by the invention, the stable processability and processing conditions of the gel are realized by adjusting the ratio of water to glycerol, that is, the adjustment of the mechanical strength is realized; the citric acid is added, so that the pH environment of the gel can be adjusted, and meanwhile, the growth of microorganisms can be inhibited; all the selected materials are food-grade, environment-friendly and easy to degrade.

The invention provides a carpet lawn and a preparation method thereof. Fishing nets are added in a lawn planting process to obtain the novel carpet lawn. The preparation method of the carpet lawn is simple in technical process, low in cost and quick in lawn forming, and a quantitative proportion of a penetration medium to an adhesion medium of a root system of the lawn is increased by means of improvement of porosity of the adhesion medium; the perfectness ratio of the lawn is increased in a lawn cutting and transporting process by means of improvement of flexibility of the adhesion medium. The carpet lawn is low in cost, easy to cut and high in perfectness ratio due to transport in a rolled manner. A laying method of the carpet lawn is simple, a rejuvenation period can be shortened while management cost is reduced, and an optimal landscape effect of the lawn is achieved. Due to high flexibility of the fishing nets, the lawn is easy to stretch and compact in a laying process, the lawn can closely contact with soil by means of trimming and jointing, and high flatness, quickness in rooting of the root system and excellent landscape effect are achieved.

The invention belongs to the technical field of imitation-marble building material preparing, and particularly relates to a phosphogypsum-based imitation-marble high-strength architectural decorationplate and a preparing method. According to the phosphogypsum-based imitation-marble high-strength architectural decoration plate and the preparing method thereof, plant ash and lime are efficiently and firmly adsorbed through a porous structure of low-temperature rice husk ash, the obtained product is evenly dispersed for neutralizing treating phosphogypsum, the sodium content and the content of soluble impurities in the phosphogypsum are further controlled, the solidification performance of the phosphogypsum is thus promoted, the strength of a phosphogypsum base material is enhanced, and thedefect that as the sodium content is over high, the pulverization phenomenon appears on the phosphogypsum surface, and the strength of the phosphogypsum base material is poor is overcome; by combiningwith coating of a simulation coating again, the imitation-marble-effect morphology with good dirt resistance, high elasticity, high self-cleaning performance and excellent weather resistance can be formed on a surface layer, and the performance of the phosphogypsum base material is improved accordingly; meanwhile, raw materials such as phosphogypsum, coal ash, yellow phosphorus slag and waste textile fibers are used, pollution on the environment is reduced, radioactivity is avoided, the preparing method is simple, ingredients are low, and the operability is high.

The invention provides Chinese chestnut polished glutinous rice cakes. The Chinese chestnut polished glutinous rice cakes consist of the following raw materials in parts by weight of 30-40 parts of Chinese chestnuts, 60-80 parts of glutinous rice flour, 14-20 parts of eggs, 5-11 parts of dried orange peel, 10-30 parts of white granulated sugar, 6-10 parts of peanut kernels, 2-6 parts of milk powder, 2-4 parts of cake oil, 8-12 parts of sweet potato powder, 3-7 parts of a sorbitol solution, 2-6 parts of salt, 0.5-0.9 part of citric acid and 20-60 parts of water. The Chinese chestnut polished glutinous rice cakes are rich in nutrients, moist in mouth feel and good in elasticity, the nutrient components are easy to absorb, and the Chinese chestnut polished glutinous rice cakes have health-care effects of refreshing mind, restoring consciousness, allaying tiredness and the like.

The invention relates to a composite antibacterial material of graphene quantum dot and fibroin, preparation and application. The composite antibacterial material of graphene quantum dot and fibroin is characterized in that the mass ratio of the graphene quantum dot or doped graphene quantum dot to the fibroin is 1:1 to 1:10000; the doped graphene quantum dot is a non-metallic compound, a metallic compound or an organic compound, which contains a doping atom, has weak oxidization or reduction property, or is easy to coordinate; the concentration of a dopant is 0.01-10 mM; and the molecular weight of the fibroin is 1000-10000000 Da. The composite antibacterial material disclosed by the invention has the capability of greatly generating hydroxyl radicals having antibacterial capability under visible light or in a dark field; particularly, the composite material of B-doped graphene quantum dot and fibroin has excellent antibacterial capability; and thus, the composite antibacterial material used as an in-vivo antibacterial material or a wound suture material can be directly used in living bodies.

A camera module for surveillance of a passenger cabin of an aircraft, including a covering device for securing in a longitudinal cutout of a service channel including a carrier part having a circularsecuring cutout and including a mounting structure at least partly surrounding the securing cutout. A camera device includes a camera housing having a mounting portion with a spherically curved outersurface, and includes a camera unit having a lens accommodated in a front cutout of the camera housing, an optical sensor for generating image data, the optical sensor being in an interior of the camera housing, and a data interface for transferring the image data, wherein the camera housing is mounted by the mounting portion in the mounting structure to be rotatable or pivotable about at least two axes, and a locking device for locking the camera housing relative to the mounting structure.

A method for preparing an inorganic-organic flexible composite material with magnetoelectric coupling performance provided by the invention comprises the following steps: step 1, dispersing PVDF-TrFE powder in dimethylformamide at a mass ratio of 1:10 to obtain PVDF solution; step 2, filter the PVDF solution prepared in step 1 to obtain the filtered PVDF solution, and Fe 3 o 4 Nanoparticles are dispersed in the filtered PVDF solution to obtain a mixed solution; step 3, the mixed solution obtained in step 2 is uniformly drip-coated on a glass slide, then dried at 135°C for 1.5 hours, and then heated to 142°C- After 145°C, take it out and cool it to 0°C to obtain a flexible multiferroic material film; Step 4, adjust the magnetic properties of the flexible multiferroic material film obtained in Step 3 by applying an external voltage to obtain a flexible multiferroic composite material. The method of the invention is simple to operate and easy to implement, and the prepared material has better pressure resistance than inorganic multiferroic materials and flexibility that inorganic materials do not have.

The invention discloses a continuous macroscopic graphene nanoribbon fiber and a preparation method thereof. The invention uses a high water content reaction solution as a raw material to prepare continuous macroscopic continuous graphene nanoribbon fibers by utilizing water molecules at high temperature to interfere with and cut the growth and assembly of carbon nanotubes through chemical vapor deposition. The key process of the preparation method of the present invention is to control the mass fraction of deionized water in the reaction solution within the range of 15-40%, preferably 20-35%. The graphene nanobelt fiber prepared by the invention is uniform and continuous, has high purity and high quality. The fiber also has light weight, high strength, high electrical conductivity, and excellent flexibility, which provides a new type of macroscopic fiber material for the development of flexible wearable electronic devices. At the same time, the preparation method is a one-step dry spinning method, the preparation process is simple, easy to control, continuous preparation is possible, and large-scale production can be realized.

The invention relates to the field of thin film capacitor energy storage, and in particular, relates to a polylactic acid dielectric thin film and an application thereof, and a method for preparing the polylactic acid dielectric thin film and an application of the method. The peak intensity of the (110) crystal face of the polylactic acid dielectric thin film measured by XRD is 15000-30000, and the peak intensity of the (203) crystal face of the polylactic acid dielectric thin film is not greater than 1000. The polylactic acid dielectric thin film provided by the invention has the characteristics of biodegradability, high energy density, high charge-discharge efficiency and good thermal stability, shows excellent energy storage performance at normal temperature, and can still keep the stability of the performance at high temperature.

The invention discloses a flexible zero-buoyancy photoelectric composite trailing cable, which comprises an optical unit arranged in the center, and an inner sheath layer, a power unit, a middle sheath layer, a flexible reinforcing unit and an outer sheath layer which are sequentially coated outside the optical unit, and the power unit is spirally twisted at the periphery of the inner sheath layerin the extending direction of the inner sheath layer by taking the inner sheath layer as an axis; the flexible reinforcing unit is made of non-metal yarns, the non-metal yarns are wound outside the middle sheath layer in a layered twisting mode, and the density of materials of the inner sheath layer, the middle sheath layer and the outer sheath layer is smaller than that of water, so that the specific gravity of the photoelectric composite trailing cable is balanced, and the density of the cable is approximate to that of seawater. The density of the cable is approximate to that of seawater through the comprehensive structural design, high-speed dragging of the whole water area depth can be achieved, and the requirement for repeated winding and unwinding can be met while the tensile strength of the whole cable is improved through the flexible reinforcing units.

The invention discloses a preparation method of a fiber graphene copper sulfide flexible electrode material in the technical field of flexible electrode materials, and the method comprises the steps: selecting qualified fiber fabric and graphene, firstly, soaking the fiber fabric in deionized water, carrying out ultrasonic washing, then taking out the fiber fabric, and carrying out drying through a drying device; pouring the graphene oxide suspension into a container filled with the fiber slurry, and standing the fiber slurry for 60-180 minutes after the graphene oxide suspension is poured into the container filled with the fiber slurry; therefore, the prepared fiber / graphene material exerts a synergistic effect, the excellent mechanical property of flexibility of the fiber material is reserved, meanwhile, the excellent conductivity of graphene is reserved, meanwhile, more reaction active points are provided for pseudocapacitance redox reaction of the fiber / graphene material through the added nickel salt solution, copper salt and sulfur-containing precursor solution, and the conductivity of the fiber / graphene material is improved. Therefore, the prepared electrode material is light in weight, soft, excellent in cycle performance, simple in manufacturing process, easy to operate and good in durability.

The invention relates to a flexible temperature sensor and a preparation method thereof. The temperature sensor uses pectin film as the temperature-sensitive material, and xanthan gum is added to improve the flexibility and responsivity of the film; PDMS is used as the flexible transparent substrate of the upper and lower layers; its electrodes are prepared by sputtering, and the electric shock can be made of carbon. Tape or copper foil leads. The pectin / xanthan gum blended film temperature sensor provided by the invention has simple structure, high sensitivity, flexibility and good biocompatibility, and has very good applications in the fields of electronic skin and human body temperature measurement, and the raw materials are easy to obtain. Available for mass production.

The invention provides a carpet lawn and a preparation method thereof. Fishing nets are added in a lawn planting process to obtain the novel carpet lawn. The preparation method of the carpet lawn is simple in technical process, low in cost and quick in lawn forming, and a quantitative proportion of a penetration medium to an adhesion medium of a root system of the lawn is increased by means of improvement of porosity of the adhesion medium; the perfectness ratio of the lawn is increased in a lawn cutting and transporting process by means of improvement of flexibility of the adhesion medium. The carpet lawn is low in cost, easy to cut and high in perfectness ratio due to transport in a rolled manner. A laying method of the carpet lawn is simple, a rejuvenation period can be shortened while management cost is reduced, and an optimal landscape effect of the lawn is achieved. Due to high flexibility of the fishing nets, the lawn is easy to stretch and compact in a laying process, the lawn can closely contact with soil by means of trimming and jointing, and high flatness, quickness in rooting of the root system and excellent landscape effect are achieved.

The invention discloses a herringbone gear speed reducer vibration reduction transmission system and application, and belongs to the technical field of speed reducers. Comprising a box body and a gear pair mounted in the box body, the gear pair comprises a driving gear and a driven gear; the driving gear is coaxially and fixedly mounted on the input shaft; the driven gear is coaxially and fixedly installed on the output shaft through a plurality of pin assemblies arranged in the circumferential direction. The pin assembly comprises an elastic sleeve, a pin and a nut, and the elastic sleeve is coaxially arranged on the peripheral face of the pin in a sleeving mode. The pin sleeved with the elastic sleeve is sequentially inserted into a shaft shoulder through hole of the output shaft and an outer end face through hole of the driven gear, and the output shaft and the driven gear are pressed and fixed through matching installation of a nut and a thread at the bottom end of the pin. Conical surface matching is achieved between the driven herringbone gear and the output shaft through the action of the pin, the nut and the gasket, fixing is achieved through pressure generated by tightening torque, the contact area is large, and operation is stable and reliable.