32results about How to "Preserve intrinsic properties" patented technology

The invention relates to an oil tea seed cold pressing technique which comprises the following steps: selecting oil tea seed, drying, shelling, drying, crushing, carrying out cold pressing, filtering, hydrating, degumming, carrying out medium temperature drying, refrigerating to crystallize, and filling. The product quality is controlled from the raw material acquisition and raw material storage time, and the fresh seed fresh pressing and low-temperature low-pressure conditions are creatively used in the process, thereby ensuring the control on the raw oil acid number and no loss of nutrients to some extent, and enhancing the raw oil quality and the utilization value of the tea cake for byproduct deep processing. The refrigeration crystallization and activated carbon adsorption are utilized to remove the harmful substances in the oil, and the inherent characteristics and nutrients in the oil tea seed oil are effectively maintained, thereby greatly improving the oil quality. The inert gas charging process is adopted to enhance the preservation period and stability of the oil and avoid using additives, thereby ensuring to use the physical production method in the overall process.

The invention discloses a novel composite biological tissue repairing material which is made of multiple layers of amnia, wherein the amnia are bonded together through an adhesive; and the adhesive isa medicinal adhesive of carboxymethylcellulose, a collagen solution, sodium hyaluronate, chondroitin sulfate and alpha-cyanoacrylate. The invention further discloses a preparation method and application of the composite material. The composite material disclosed by the invention is excellent in mechanical property, high in stability and high in biocompatibility, is not rapidly degraded, can be applied to soft tissue defection repairing and tissue postoperative adhesion prevention, has the advantages of reducing risks of reducing wound infection and inflammation reactions, and has excellent clinical application prospects.

The invention relates to an old style forming method of Jinshan stone with a decoration effect, and relates to the technical field of building materials. According to the invention, a key technology of accelerating color penetration and strengthening color attachment is adopted, specifically, the method comprises the following steps of: brewing 100g of tea leaves by using 1L of boiled water, cooling to the room temperature, filtering by using gauze to obtain tea water for spare use; placing 5g of potassium permanganate in 25L of tap water, and uniformly stirring, thus obtaining a solution for accelerating color permeation for spare use; adding 250ML of poly ethyl acetate emulsion adhesive into the solution for accelerating color permeation, and uniformly stirring, thus obtaining a solution for accelerating color permeation and strengthening color attachment for spare use; adding the tea water into the solution for accelerating color permeation and strengthening color attachment, uniformly stirring, and placing for one hour, thus obtaining the old style forming liquid for spare use; painting the old style forming liquid on the surface of Jinshan stone by using a soft fur brush, cooling, and preparing an old-style Jinshan stone product. The Jinshan stone old style forming method is used for old forming decoration treatment on Jinshan stone, is simple, ingenious and practical, ensures that the product is plain and elegant, and ensures that the decoration effect is good.

The invention relates to an ordinary pressure intermittent sterilization method which can be used for achieving the complete sterilization effect in the production of wheat cultures of edible fungus. Compared with the high-pressure sterilization technology, the ordinary pressure intermittent sterilization method has the advantages that the inherent nature of the cultures is retained to enable vitamin to be affected by pyrolysis as less as possible and to reduce the nutrition effect decline of protein; the expensive high pressure equipment investment is omitted to obtain great application values, especially for small rural township enterprises.

The invention discloses a limonite purple-clay product, which consists of the following raw materials in percentage by weight: 30 to 50 percent of limonite, and 50 to 70 percent of purple-clay mud. The preparation method comprises the following steps: grinding the limonite and the purple clay mud into powder of between 80 and 120 meshes; mixing according to a proportion, adding water and stirringto prepare unfired pottery; sealing and packaging the unfired pottery, and aging for 10 to 15 days; preparing a blank of the required product, and drying in the shade indoors for 2 to 3 days; grinding and polishing the shady dried blank to prepare a semi-finished product; and firing the prepared semi-finished product in a kiln for 15 to 20 hours at the temperature of between 1,120 and 1,180 DEG C, and cooling to prepare the required product. In the invention, the limonite resource is sufficiently utilized, and waste is turned into wealth; and the fired limonite purple-clay product has light weight, high strength and no toxicity or radiation, the original characteristic and separated trace elements of the limonite have no changes, and the advantages of good ventilation and plasticity of the purple-clay are combined. The limonite purple-clay product can be manufactured into various nice new material tea sets, mugs and other products.

The invention relates to a preparation method of a graphene/styrene-butadiene rubber composite with a functional characteristic and aims at compounding directionally-arranged graphene nanosheets intostyrene-butadiene rubber so as to provide excellent conductivity, wear resistance and the like. The material provided by the invention is of a double-layer structure, one layer is a functional layer mainly formed by directional arrangement of the graphene nanosheets, and the other layer is an elastic insulation layer mainly made of the styrene-butadiene rubber. The preparation method comprises thesteps: (1) carrying out ultrasonic treatment on the graphene nanosheets in a polyvinylpyrrolidone (PVP) solution to obtain a graphene dispersion solution; (2) adding the graphene dispersion solutioninto styrene-butadiene latex to carry out ultrasonic treatment or mechanical stirring; and (3) pouring the mixed solution obtained in the step (2) into a die, and carrying out solidification at a certain temperature to obtain a final composite. The composite is low in graphene nanosheet addition amount, excellent in conductivity and wear resistance in a direction parallel to the directional arrangement direction of the graphene nanosheets, good in insulation property in a direction vertical to the arrangement direction of the graphene nanosheets, soft and foldable and can be used in the fieldsuch as electrostatic protection and electromagnetic wave shielding.

The invention provides a coating of a polysilicon reduction furnace, a preparation method of the coating, the polysilicon reduction furnace and uses of the polysilicon reduction furnace, and relates to the field of polysilicon technical equipment in production. The preparation method of the coating of the polysilicon reduction furnace comprises the steps of spraying first particles on the surface,in contact with materials, of the polysilicon reduction furnace by virtue of first cold gas dynamic spraying to form a base layer, and spraying second particles on the surface, away from the polysilicon reduction furnace, of the base layer by virtue of second cold gas dynamic spraying to form a surface layer. The speed of the first particles of the first cold gas dynamic spraying and the speed ofthe second particles of the second cold gas dynamic spraying are both supersonic speed, and the speed of the first particles is greater than the speed of the second particles. The base layer and thesurface layer are suitable for reflecting infrared radiation. The spraying speed of the first particles forming the base layer is higher, so that the bonding strength of the base layer and the surfaceof the polysilicon reduction furnace is higher. The spraying speed of the second particles forming the surface layer is lower so as to facilitate the reduction of the spraying cost of the coating.

The invention provides a reduction furnace bell jar inner wall spraying device and spraying method and a reduction furnace, and relates to the technical field of polycrystalline silicon equipment. Thespraying device comprises a bell jar, a rotating part, a sealing part, a vacuumizing part, an exhaust part and a cold gas power spraying part; and after a closed space is formed in the bell jar through a sealing part, the interior of the bell jar is in a high-temperature protective gas atmosphere through the vacuumizing part, the cold gas power spraying part and the exhaust part, then the cold gas power spraying part is adopted to spray powder to the inner wall of the bell jar to form a coating on the inner wall of the bell jar, the interior of the bell jar is in the high-temperature protective gas atmosphere before spraying, oxidation of the coating in the spraying process can be avoided, and the intrinsic performance of a coating material can be reserved to the maximum extent; and meanwhile, the inner wall of the bell jar is preheated by using high-temperature protective gas, so that the coating with high bonding strength is obtained under a relatively low spraying condition. The invention further provides the reduction furnace bell jar inner wall spraying method.

The invention provides an engineered cell for activating a NK-like cell, and a preparation method and application of the engineered cell. The engineered cell is a mammalian cell for expressing membrane proteins MICA, IL-21, CD64 and CD86. The engineered cell disclosed by the invention expresses and activates the membrane protein of the NK-like cell; the amplification capacity of the NK-like cell and the toxicity of tumour cells are improved; and a strategy for standardizing in-vitro amplification of the NK-like cell is provided.

The invention discloses a nano hybrid P(VDF-TrFE)(polyvinylidene fluoride copolymer) composite film as well as a preparation method and an application thereof and belongs to the technical field of high-compatibility, AO (atomic oxygen) scouring resistant, high-hydrophobicity and piezoelectric high-polymer hybrid composites to solve the technical problem that existing polyvinylidene fluoride is easily corroded by AO. The nano hybrid P(VDF-TrFE) composite film contains, in percentage by mass, 92%-98% of P(VDF-TrFE) and 2%-8% of polyhedral oligomeric silsesquioxane. The method comprises steps asfollows: 1) P(VDF-TrFE) and polyhedral oligomeric silsesquioxane are dissolved in an organic solvent; 2) a pre-prepared solution is prepared; 3) the pre-prepared solution is drained and poured into aculture dish, left to stand and dried. The method is simple and easy to implement, the piezoelectric property of a substrate is kept, the modulus and the hardness of an original substrate material canbe notably improved, the hydrophobic property and the AO corrosion resistance are enhanced, the properites of the composite are relatively comprehensively improved, and requirements of part of special fields can be better met.

The invention relates to an anti-corrosion flexible epoxy composite coiled material as well as a preparation method and application thereof, and the flexible epoxy composite coiled material comprises a first resin layer, a first reinforcing layer, a second resin layer, a second reinforcing layer and a third resin layer which are sequentially stacked, the first resin layer, the second resin layer and the third resin layer are respectively compounded by light-cured epoxy acrylic resin and light-cured polyurethane acrylic resin as main raw materials, and the light-cured epoxy acrylic resin is selected from aliphatic flexible long-chain modified epoxy acrylic resin; and the light-cured polyurethane acrylic resin is selected from aliphatic polyurethane acrylic resin with polyfunctionality. The three resin layers not only retain the inherent characteristics of epoxy resin, but also increase the advantages of acrylic resin and polyurethane resin, and meanwhile, the film layer is toughened from the molecular level to form a cross-linked network composite film layer structure reinforced in an elastomer; the composite resin system has weather resistance, flexibility and good mechanical strength at the same time.

The invention provides a production and processing technology of raw potato whole powder. The production and processing technology comprises the following steps: pretreating raw materials; cleaning; crushing; homogenizing; performing centrifugation; carrying out light-phase sand removal; concentrating a light phase; premixing; drying; crushing a finished product; and packaging the finished product to obtain the potato whole flour, injecting inert gas into a buffer tank, and maintaining the positive pressure environment in the tank. Compared with the traditional potato whole flour (cooked whole flour), the potato starch is prevented from being gelatinized in the processing process, the inherent characteristics of the original starch are reserved, the browning of the potato whole flour in the processing process is inhibited, the color, aroma and taste and inherent nutrients of potatoes are maintained, the potato whole powder is suitable for long-term storage, and the production and processing technology is wide in application field, is especially suitable for processing staple food products, is beneficial to promoting the industrialization of staple food of potatoes, and ensures the national food safety.

The invention discloses a carbon-series micro-nano graded cross-scale fiber reinforced cement mortar, and belongs to the technical field of cement mortar preparation. The cement mortar is prepared from the following substances by weight: 1-4 parts of micro-nano graded cross-scale fiber, 700-800 parts of cement, 1200-1300 parts of sand, 7-8 parts of a water reducer, 1-2 parts of an antifoaming agent, 3-4 parts of a dispersant, and 220-240 parts of water. The carbon-series micro-nano graded cross-scale fiber reinforced cement mortar prepared by the invention has more excellent mechanical and electrical properties.