30results about How to "Toughness has" patented technology

The invention discloses a tissue engineering cornea epithelial transplantation membrane, a preparing method and an application thereof. The invention aims to provide a tissue engineering cornea epithelial transplantation membrane, the tissue engineering cornea epithelial transplantation membrane comprises a porcine cornea epithelial cell and nonantigenic tissue engineering cornea bracket material, wherein, the porcine cornea epithelial cell and the nonantigenic tissue engineering cornea bracket material are combined into a whole by adopting a tissue engineering method. And meanwhile, The invention further provides a method for preparing the tissue engineering cornea epithelial transplantation membrane, and a use of the tissue engineering cornea epithelial transplantation membrane during the process of preparing medical treatment material used for remedying blind eye disease caused by the pathological state and the damage of corneas.

The invention relates to a high temperature ductility well cementing carboxylic styrene butadiene latex additive. The additive consists of 1 portion of a liquid A, 0.067 to 0.133 portion of a liquid B and 0.067 to 0.133 portion of a liquid C. The liquid A comprises 1 portion of carboxylic styrene butadiene latex, 0.03 to 0.3 portion of sulfonate, 0.0 to 0.8 portion of phosphate, carboxylate or a mixture thereof, and 0.1 to 0.8 portion of an acrylamide-acrylic acid-alpha-acrylamide-2-methylpropanesulfonic acid copolymer; the liquid B contains two nonionic surfactants and deionized water; and the liquid C contains two anionic surfactants and the deionized water. When a well bottom temperature reaches between 190 and 240 DEG C, cement slurry is also characterized in low water loss, adjustable thickening time and high compressive strength; and the hardened cement formed by the cement slurry can ensure good well cementing quality with ductility.

The invention belongs to the technical field of material processing and particularly relates to a laser sintering synthesis method of a ceramic-particle-reinforced nickel-aluminum-based composite. The technical scheme includes that the laser sintering synthesis method includes the steps: mixing nickel powder with aluminum powder according to the atomic ratio of Ni to Al of 3:1, adding tungsten concentrate powder accounting for 0.5-2wt% of the total weight of nickel-aluminum mixed powder, performing ball milling to obtain uniformly-mixed mixed powder, compacting the mixed powder to a cylindrical compact, placing the compact on a numerically-controlled machine tool, starting a CO2 laser machine with the laser powder of 900-1200W for laser radiation for 10-20s, and lighting the surface of the compact to enable the compact to generate self-propagating reaction, so that the ceramic-particle-reinforced nickel-aluminum-based composite by laser sintering synthesis is obtained. According to the laser sintering synthesis method, matrix reaction, reinforced phase formation and metal-based composite preparation are combined together, and the reinforced ceramic phase subjected to in-situ synthesis enables high-temperature mechanical properties of a nickel-aluminum intermetallic compound to be obviously improved and enhanced.

The invention relates to the technical field of road engineering, in particular to an early strength flexible double-liquid grouting material for expressway subgrade repair. The grouting material includes a component A and a component B. The component A comprises the following components by weight: 72.2-80 parts of a sulphate aluminium cement clinker, 12.4-19 parts of quartz powder, 0.5-0.8 part of a water reducing agent, 1-2 parts of an early strength agent, 1-2 parts of a suspending agent, and 4-6 parts of a composite chain extender. The component B comprises the following components by weight: 43-65 parts of gypsum, 10-17 parts of quicklime, 12-22 parts of quartz powder, 2-3 parts of a suspending agent and 10-15 parts of polyester. The grouting material provided by the invention has good slurry stability, low viscosity and long operable time, can reach final setting 10 minutes after mixing, and has the 1h compressive strength above 15Mpa. The concretion body has certain toughness and good durability, is non-cracking and non-chalking. Therefore, the early strength flexible double-liquid grouting material is suitable for expressway subgrade repair and large crack repair.

A polyurethane grouting material for repairing roadbed-bottom culvert defects comprises the following raw materials in parts by weight: 60-80 parts of a polyurethane prepolymer, 15-25 parts of modified phenolic resin, 1-10 parts of organic montmorillonite, 5-15 parts of a fire retardant, 2-3 parts of an antistatic agent, 5-30 parts of a plasticizer, 2-10 parts of a foam stabilizer, 0.05-1 part of a catalyst, and 10-35 parts of a solvent. The polyurethane grouting material for repairing roadbed-bottom culvert defects possesses good curing real-time efficiency and relatively high dimension stability, and also is excellent in mechanical properties and strong in engineering endurance.

The invention relates to a preparation method of a ductile SiO2 aerogel fiber coated with PVP (polyvinylpyrrolidone). The preparation method comprises the following steps: a spinning solution is prepared from silicate or silanol sol; an acid solution is added to a coagulating basin to serve as a coagulating bath; the spinning solution is added to the coagulating bath for reaction wet spinning, an orthosilicic acid / silicate fiber is obtained and is subjected to winding, aging and washing to be neutral, and solvent exchange and drying performed; the dried fiber is soaked in a PVP aqueous solution, taken out and dried, and a product is obtained. The preparation method has the characteristics of cheap and available raw materials, simple reaction process and good spinnability; the prepared inorganic SiO2 aerogel fiber has rich pores, high specific surface area, high-temperature resistance and chemical corrosion resistance, meanwhile, the specific surface area of the fiber is adjustable, the fiber has certain toughness, the application range of the aerogel fiber can be expanded, and the aerogel fiber has higher practical value.

The invention discloses a processing technology of fructus mume composite sweetened roll, and belongs to the field of food processing. The processing technology is characterized by comprising the technological processes of raw material treatment, blending, scraping, drying, cutting and packing. The processing technology has the advantages that the product is rich in aromatic flavor, delicate in taste, rich in toughness, sour, sweet and tasty, and the specific fragrance flavor of fructus mume is achieved; the product is delicious, nutritious, rich in vitamins, beneficial to promotion of metabolism of bodies, and the effects of promoting the secretion of saliva or body fluid, quenching thirst, achieving beautifying, losing weight and resisting senescence are achieved, and the ructus mume composite sweetened roll is a pure natural, nutritious and healthy special food, eating is convenient, and the fructus mume composite sweetened roll is suitable for people of all ages.

The invention discloses a preparation method of an electric vehicle charger plug sheath material. The preparation method comprises the following steps: uniformly mixing microencapsulated red phosphorus, zeolite powder, fumed silica, maleic anhydride and a silane coupling agent to obtain a filling reinforcing agent; mixing nitrile silicone rubber, styrene butadiene rubber, butadiene rubber, calciumstearate and methyl silicone oil; adding the filling reinforcing agent and performing vacuum stirring to obtain a mixture; adding cyclohexane peroxide, zinc stearate and microcrystalline wax into themixture; vulcanizing and moulding to obtain the electric vehicle charger plug sheath material. According to the preparation method of the electric vehicle charger plug sheath material disclosed by the invention, the obtained sheath material has the advantages of good radiating effect, excellent mechanical property, high toughness, perfect tear resistance and rare breakage of plug sheath.

The present invention provides a production formula and a preparation method of a cumin flavored shredded vegetarian meat. The cumin flavored shredded vegetarian meat production formula is characterized by comprising the following raw materials: vegetarian meat, white sugar, monosodium glutamate, I+G, chili powder, cumin powder, beef powder, refined meat powder, meat monosodium glutamate paste, capsanthin, chili extract, cumin essence, red oil, and aromatic fried meat essence. The preparation method comprises the following steps of performing pretreatment, pickling, stir-frying, cooling, cooking, stirring, performing sterilization, and packaging. The produced shredded vegetarian meat is pleasant in color and luster, rich in fragrance, elastic and tough, and high in nutritional value.

The invention relates to a vermicelli processing technology and especially relates to a composite health-care vermicelli processing technology. The composite health-care vermicelli obtained by the composite health-care vermicelli processing technology has a unique local flavor, stable properties and health care functions. The composite health-care vermicelli processing technology comprises the following steps of cleaning, scraping, cutting, triturating, filtration, alcohol immersion, secondary triturating, filtration, drying, crushing, drying, pulping, mixing, kneading, vermicelli compaction, vermicelli cooling, vermicelli immersion and vermicelli drying in the sun.

The invention discloses a degradable plastic which consists of the following components in parts by weight: 35-50 parts of polypropylene, 10-20 parts of plant fiber starch, 10-20 parts of hydroxypropyl methyl cellulose, 4-8 parts of paraffin wax, 2-10 parts of a color master batch and 6-12 parts of glycerinum. The degradable plastic disclosed by the invention has properties such as toughness and ductility which are generally identical to those of existing plastics, also has the characteristic of degradability, and can be decomposed gradually and completely under the condition of outdoor exposure; and in addition, the plastic is simple in preparation process, low in preparation cost and suitable for large-scale popularization.

The invention belongs to the technical field of building materials and particularly relates to a tough self-insulation plate in order to solve the problems that with poor toughness, an insulation plate often experiences damage. The tough self-insulation plate is made from polystyrene, cement, kaolin, fly ash, stearic acid, a dispersant, reinforcing fibers, a water repellent, and suitable water, bydrying crushing, mixing and molding, heating and impurity removing, matching and pulp adjusting, and infiltrating to shape. The cement framework material wherein provides improved framework toughnessvia kaolin, fly ash and reinforcing fibers; the framework is filled with stearic acid; after heating and decomposing, the stearic acid may cause the inside of the framework to attain maximum miniature cavities; polystyrene is then used as a filling main material that is modified and enhanced via the dispersant and the reinforcing fibers, the tough self-insulation plate is more tough and its insulating performance is greatly improved.

The invention relates to a preparation method of a ductile SiO2 aerogel fiber coated with PVP (polyvinylpyrrolidone). The preparation method comprises the following steps: a spinning solution is prepared from silicate or silanol sol; an acid solution is added to a coagulating basin to serve as a coagulating bath; the spinning solution is added to the coagulating bath for reaction wet spinning, an orthosilicic acid / silicate fiber is obtained and is subjected to winding, aging and washing to be neutral, and solvent exchange and drying performed; the dried fiber is soaked in a PVP aqueous solution, taken out and dried, and a product is obtained. The preparation method has the characteristics of cheap and available raw materials, simple reaction process and good spinnability; the prepared inorganic SiO2 aerogel fiber has rich pores, high specific surface area, high-temperature resistance and chemical corrosion resistance, meanwhile, the specific surface area of the fiber is adjustable, the fiber has certain toughness, the application range of the aerogel fiber can be expanded, and the aerogel fiber has higher practical value.

The invention discloses a self-adhesion type dimming film. An outer protective layer, a first adhesive layer, a first conductive film layer, a polymer dispersed liquid crystal layer, a second conductive film layer, a second adhesive layer and a release layer are sequentially arranged from top to bottom. Multiple innovations in structure, material taking and formula are carried out; the film has the advantages of stability in operation, difficulty in damage, high transparency after being electrified and capability of being applied to curved surfaces; the dimming film can be installed by a useraccording to the requirements of the user, transformation of traditional glass is achieved, new and old replacement of the dimming film and modification of DIY decoration such as patterns are facilitated, material waste is avoided, time and labor are saved, the operation difficulty is low, the cost is low, comfort and convenience are brought to life of people, the application range is wide, and the market competitiveness is high.

The invention discloses intelligent parking barrier gate equipment, and belongs to the technical field of vehicle access management device.A display screen is installed on one surface of a box body, an identifier is fixedly installed on the surface of one end of the box body, the identifier is provided with a camera, and one side of the box body is fixedly connected with a rotatable movable rod through a motor shaft rod; one end of the movable rod is connected with a rubber rod through a thread; the shielding cover arranged on the intelligent parking barrier gate equipment has a quick mountingand dismounting function, a user can conveniently shield a display screen from light after mounting, the content displayed on the display screen can be conveniently seen clearly when a vehicle approaches, the shielding range can be increased by rotating the extension plate, and the intelligent parking barrier gate equipment is convenient to mount and dismount. The conveneince in use is greatly improved. In addition, the arranged brake rod and the movable rod are in flexible connection, under the condition that vertical rotation of the brake rod is not affected, the buffer function is achieved, the situation that the brake rod is damaged due to the fact that a vehicle collides with the brake rod accidentally can be avoided, and the service life of the brake rod is prolonged.

The invention belongs to the technical field of street lamps, and particularly relates to a hidden street lamp convenient to overhaul, which comprises a lighting part, a lifting part, a support pipe and a mounting base, the lighting part comprises a sliding mounting sleeve, a guide rod, a connecting plate, an overturning plate, a limiting column, a lead screw, an elastic sheet, a connecting shaft,a stepping motor and an elastic light-emitting body; the stepping motor is controlled by a controller to rotate reversely, then the stepping motor drives the connecting shaft to rotate reversely, theupper end of the connecting shaft extrudes the other end of the elastic piece, and then the plate-shaped structure at the upper end of the connecting shaft is clamped into a fan-shaped cutting groovein the other side of the lower end of the lead screw; therefore, the connecting shaft cannot be separated from the lead screw in the process of stirring the lead screw to rotate, the elastic light-emitting body on the overturning plate is dragged downwards, the elastic light-emitting body is contracted into a supporting pipe finally, and the situation that the service life of the elastic light-emitting body is shortened due to the fact that the elastic light-emitting body is exposed to the sun or rain is prevented. And the service life of the street lamp is prolonged.

The invention belongs to the technical field of material processing and particularly relates to a laser sintering synthesis method of a ceramic-particle-reinforced nickel-aluminum-based composite. The technical scheme includes that the laser sintering synthesis method includes the steps: mixing nickel powder with aluminum powder according to the atomic ratio of Ni to Al of 3:1, adding tungsten concentrate powder accounting for 0.5-2wt% of the total weight of nickel-aluminum mixed powder, performing ball milling to obtain uniformly-mixed mixed powder, compacting the mixed powder to a cylindrical compact, placing the compact on a numerically-controlled machine tool, starting a CO2 laser machine with the laser powder of 900-1200W for laser radiation for 10-20s, and lighting the surface of the compact to enable the compact to generate self-propagating reaction, so that the ceramic-particle-reinforced nickel-aluminum-based composite by laser sintering synthesis is obtained. According to the laser sintering synthesis method, matrix reaction, reinforced phase formation and metal-based composite preparation are combined together, and the reinforced ceramic phase subjected to in-situ synthesis enables high-temperature mechanical properties of a nickel-aluminum intermetallic compound to be obviously improved and enhanced.

The invention discloses a long-acting antifogging agent as well as a preparation method and a use method thereof. The long-acting antifogging agent is prepared from the following raw materials in parts by weight: 70-80 parts of polyglycerol, 20-30 parts of fatty acid, 5-20 parts of acrylate, 0.01-0.03 part of an antioxidant and 25-35 parts of food-grade ethanol. The long-acting antifogging agent disclosed by the invention has the beneficial effects that 1) the long-acting antifogging agent is high in applicability and is suitable for polyethylene resin, polypropylene resin, polyvinyl chloride resin, polystyrene resin, polycarbonate resin, poly(ethylene terephthalate), glass lenses, glass surface layers and other resin; and 2) sulfuric acid is used as a catalyst, the aqueous solution of the prepared antifogging agent is clear and transparent, and the light transmittance reaches more than 80%. (3) the long-acting antifogging agent has toughness in adhesive force and is not easy to crease and white, and the principle is that the compatibility between the antifogging agent and plastic resin is increased by adding acrylate, so that the antifogging agent has toughness, and the migration speed of the antifogging agent is slowed down.

The invention discloses a suspension type flower pot frame. The suspension type flower pot frame is provided with a ceiling filter net which can well protect plants from being damaged by heavy rain, high-temperature weather or the like and allow the flower pot frame to be hung at different positions such as a balcony and a stairway. The flower pot frame is provided with a pot frame guiderail, because of which flower pots cannot fall off to cause accidents. A plurality of flower pots can be hung on a flower pot suspension bar, glass fiber net is arranged in trays, the high-strength glass fibernet can bear very high pressure, and in addition, the glass fiber net replaces existing steel plates, so that rusting caused by long-time use cannot occur. More heavy flower pots can be placed on thesuspension type flower pot frame, and the flower pot frame can be placed on the floor by disassembling hooks. Most structures are formed through welding, which enables the flower pot frame to be usedmore stably. The trays are connected through nylon thread which is high in toughness, so that a certain toughness is achieved between the glass fiber net and tray supports, and damage caused by special strong impact is reduced.

The invention relates to a preparation method of tough SiO2 aerogel fibers post-processed through isocyanate. The preparation method comprises steps as follows: a spinning solution is prepared from silicate or silanol sol; an acid solution is used for a coagulating bath; the spinning solution is added to the coagulating bath, the mixture has a reaction, wet spinning is performed, orthosiliconic acid / silicate fibers are obtained, wound, aged, washed, soaked in a tetrahydrofuran solution of isocyanate for 48 h, then taken out and washed with acetone, solvent replacement is performed through water or ethanol, and the tough SiO2 aerogel fibers are obtained after drying. The method has the characteristics that the raw materials are cheap and easy to obtain, the reaction process is simple, and the spinnability is good; the SiO2 aerogel fibers are toughened through high polymers, the prepared tough SiO2 aerogel fibers have rich pores, a high specific surface area and certain toughness and is high-temperature-resistant and chemical-corrosion resistant, and the specific surface area of the fibers is adjustable.

The present invention is applicable to the technical field of food processing, and provides an adjustable water-cooling and water-heating device for a vermicelli machine, including a water-cooling tank, a water-heating tank, a rotating gear, an adjusting device, a heating device and a transmission chain, and the rotating gear includes a first A rotating gear and a second rotating gear, the first rotating gear is located on both sides of the water heating tank, the second rotating gear is located on both sides of the water cooling tank, and the rotating gear rotates along the moving direction of the conveyor chain, and the second rotating gear A rotating gear and a second rotating gear are respectively connected through a first rotating shaft and a second rotating shaft. The adjustment device includes a push rod, a limiter, a power wheel and a rotating handle, and the rotating handle is fixedly connected to the power wheel. The lower end of the push rod is provided with a gear structure matched with the power wheel, and the power wheel is located in the limiter. Thereby, the present invention directly realizes the heating and cooling of the vermicelli in the production process, and improves the working efficiency.

The invention discloses a tissue engineering cornea epithelial transplantation membrane, a preparing method and an application thereof. The invention aims to provide a tissue engineering cornea epithelial transplantation membrane, the tissue engineering cornea epithelial transplantation membrane comprises a porcine cornea epithelial cell and nonantigenic tissue engineering cornea bracket material, wherein, the porcine cornea epithelial cell and the nonantigenic tissue engineering cornea bracket material are combined into a whole by adopting a tissue engineering method. And meanwhile, The invention further provides a method for preparing the tissue engineering cornea epithelial transplantation membrane, and a use of the tissue engineering cornea epithelial transplantation membrane during the process of preparing medical treatment material used for remedying blind eye disease caused by the pathological state and the damage of corneas.

The invention provides a belt turning mechanism, a belt conveyor comprising the belt turning mechanism and a belt turning method of the belt conveyor, the belt conveyor comprises a first belt pressing roller set, a plurality of belt turning devices and a second belt pressing roller set which are arranged in sequence in the running direction of a rubber belt, and each turning device is provided with a belt turning restraining assembly. And the adhesive tape turning section is turned over by 180 degrees through the tape turning device in a segmented mode, and then adhesive tape turning is completed. Therefore, the use occasions of the belt turning device are increased, and the abrasion of the belt turning device to the belt is reduced.

The invention relates to an epoxy resin composition as well as a prepreg and a metal-foil-clad laminated board manufactured by using the same. The epoxy resin composition comprises the following components: epoxy resins, which are bisphenol A epoxy resins or isocyanate-modified epoxy resins or a mixture thereof; polybutadiene resins of which the epoxy equivalent is 200-1000 and the number averagemolecular weight is 500-5000; a curing agent, which is a mixed curing agent of amine and anhydride curing agents; and silicon micropowder. The prepreg using the epoxy resin composition includes a base material and the epoxy resin composition attached to the base material by impregnating and drying. The metal-foil-clad laminated board manufactured by using the epoxy resin composition includes a plurality of laminated prepregs and metal foils formed on one or two surfaces of the laminated prepregs. The epoxy resin composition provided by the invention has the advantages of heat resistance, dip soldering resistance, moisture resistance, moisture heat resistance, good toughness and high processing efficiency, and is adaptable to the lead-free printing performance requirements on the laminatedboard.

The invention belongs to the technical field of building materials and particularly relates to a tough self-insulation plate in order to solve the problems that with poor toughness, an insulation plate often experiences damage. The tough self-insulation plate is made from polystyrene, cement, kaolin, fly ash, stearic acid, a dispersant, reinforcing fibers, a water repellent, and suitable water, bydrying crushing, mixing and molding, heating and impurity removing, matching and pulp adjusting, and infiltrating to shape. The cement framework material wherein provides improved framework toughnessvia kaolin, fly ash and reinforcing fibers; the framework is filled with stearic acid; after heating and decomposing, the stearic acid may cause the inside of the framework to attain maximum miniature cavities; polystyrene is then used as a filling main material that is modified and enhanced via the dispersant and the reinforcing fibers, the tough self-insulation plate is more tough and its insulating performance is greatly improved.

The invention discloses a substrate wafer structure for improving the resistivity of a substrate and a preparation method, and relates to a semiconductor substrate wafer. The method comprises the following steps of: dividing the substrate wafer into different resistivity ranges according to the substrate wafer provided by a wafer manufacturer; selecting substrate wafers with different resistivityranges, carrying out ion implantation or doping, and forming a high-concentration surface area in a certain window range of the surface. The implanted or doped ions exist below the surface of the window in the form of Gaussian distribution, and a three-dimensional wafer structure formed by high-temperature diffusion forms a corresponding relation table of different implanted or doped windows and implanted or doped depths and reduced resistivity percentages through multiple experiments. In resistivity improvement of the substrate wafer later, the resistivity of the substrate wafer is optimizedeffectively and precisely according to the corresponding relation table. The practicability is high, the control scheme is good, the effect is obvious, the performance is greatly improved, meanwhile,the requirements of users are greatly met, the manufacturing cost is reduced, and the current process conditions are met.

The invention provides a preparation method of a pearl plum flavored fruitcake and belongs to the technical field of food processing. The method comprises steps as follows: (1) treatment of dried tangerine peels and wax apples: the dried tangerine peels and the wax apples are fermented by an active fermentation agent; (2) preparation of blending juice: the blending juice is used for enabling the fruitcake to be gelatinous; (3) treatment of pearl plum fruits: juice is obtained through treatment of pearl plum fruits, the pearl plum juice is mixed with fermented juice and the blending juice, and a raw fruitcake juice is obtained; (4) vacuum concentration treatment; (5) drying. The pearl plum fruitcake obtained with the method can better reserve the flavor of the pearl plums in the aspect of nutrition and health care value, relieves the limitation that people cannot eat too much in case the spleen and the stomach are easily injured by being compounded with the dried tangerine peels and the wax apples, and has the health-care efficacy of improving appetite, maintaining beauty and keeping young; in the aspect of appearance and taste of the fruitcake, the fruitcake has natural rose red color and palatable sweet and sour taste, tastes fine and has smooth and bright surface and certain transparency, toughness, elasticity and chewiness with the scientific preparation process.