30results about How to "Adjustable content" patented technology

The invention relates to a preparation method of a silicon carbide nanowire enhanced C/C-SiC-ZrB2 ceramic-based composite material. A pretreated carbon fiber prefabricating body is thermally treated to obtain a silicon carbide nanowire. The silicon carbide nanowire prepared by a sol-gel carbon-thermal reaction method is evenly distributed at the inner part of a porous carbon/carbon composite material. Subsequently, pyrolytic carbon deposited in an isothermal chemical vapor deposition furnace is coated at the surface of the silicon carbide nanowire, thus the dropping, growing and rupture of the silicon carbide nanowire in the following reaction and infiltration processes are effectively avoided. A ceramic-based composite material carbon fiber, a silicon carbide nanowire and a pyrolytic carbon middle layer after reaction and infiltration are not eroded by a high-temperature metal bath and are well preserved; thus the physical performance of the composite material can be improved. Compared with the C/C-SiC-ZrB2 ceramic-based composite material without adding the silicon carbide nanowire, the bending strength and the fracture toughness property of the silicon carbide nanowire enhanced C/C-SiC-ZrB2 ceramic-based composite material are improved by 26.9-41.3% and 45.2-59.1% respectively.

The invention discloses a high-strength aluminum alloy subjected to carbonitride complex treatment and a preparation method thereof. The alloy comprises the following components in percentage by weight: 2.0-3.2 percent of Cu, less than or equal to 0.2 percent of Mn, 0.2-0.5 percent of Mg, less than or equal to 0.01 percent of Cr, less than or equal to 0.01 percent of Ni, less than or equal to 0.1 percent of Zn, less than or equal to 0.15 percent of Ti, less than or equal to 0.5 percent of Si, less than or equal to 0.5 percent of Fe, and the balance of Al and inevitable trace impurities, wherein the carbonitride MX(C,N)Y is 0.05-2.5 percent of total mass of the furnace burden. The aluminum alloy has the characteristics of high strength and good casting performance.

The invention discloses a polyvinylidene fluoride anti-pollution membrane and a preparation method thereof, and belongs to the field of environmental functional membrane materials. The preparation method comprises: (1) self-polymerizing dopamine on the surface of polyvinylidene fluoride powder, and adhering the generated poly dopamine functional layer onto the surface of the polyvinylidene fluoride powder; (2) preparing a poly dopamine modified polyvinylidene fluoride membrane by using a phase conversion method; and (3) depositing a nano-TiO2 functional layer on the membrane prepared in the step (2) through a liquid phase deposition method to prepare the polyvinylidene fluoride anti-pollution membrane. According to the present invention, by combining the strong adhesion and the polyfunctional group of poly dopamine, the ultraviolet resistance and stable chemical performance of polyvinylidene fluoride, and the advantages of hydrophilicity, high photocatalytic activity and the like of nano-TiO2, the polyvinylidene fluoride anti-pollution membrane is developed; and the prepared polyvinylidene fluoride anti-pollution membrane has excellent pollution resistance, and can be used in various membrane separation fields.

The invention discloses a preparation method of a metal-based carbon nanotube reinforced composite material, and belongs to the field of preparation of metal-based composite materials. The method uses a series of process flows for uniformly dispersing carbon nanotubes and metal particles to obtain the metal-based carbon nanotube reinforced composite material. The method comprises the following specific steps: (1) the metal particles and the carbon nanotubes are mixed; (2) the ball grinding is performed for metal particle and carbon nanotube mixed slurry; (3) the metal particle and carbon nanotube mixed slurry is dried; (4) the ball grinding is performed for metal particle and carbon nanotube dried powder; and (5) metal-based carbon nanotube reinforced composite powder is molded through extruding. The method has such characteristics as simple preparation process, environmental protection and possession of large-scale application potential, and is suitable for such fields as aerospace and vehicle manufacturing having the high-mass and high-strength material demands.

The present invention is dairy product and reprocessed food with some health components and thus health function. The present invention features that each kilogram of the said dairy product contains the following components: DHA 10-200 mg, AA 10-300 mg, vitamin E 30-30 mg, vitamin B1 0.5-2 mg and taurine 20-100 mg, and the milk components; and each kilogram of the said reprocessed food contains the following components: DHA 0.5-20 mg, AA 0.5-50 mg, vitamin E 100-200 mg, vitamin B1 3-8 mg and taurine 300-500 mg and other food components. The present invention makes the dairy product and the food contain rich DHA and AA, prevents the oxidation and rancidity of DHA and AA, the makes the dairy product and the food good for brain.

The invention belongs to the technical field of drug administration appliances and discloses a micro-needle capable of being rapidly dissolved based on water-soluble small molecules as well as a preparation and application of the micro-needle. The preparation method specifically comprises the following steps: firstly, taking a water-soluble small molecular material as a solute to prepare a small molecular water solution; then loading the small molecular water solution into a micro-needle mould; drying and de-molding so as to obtain the micro-needle capable of being rapidly dissolved based on the small molecules. According to the preparation method provided by the invention, a whole technological flow design and conditions and parameters (such as small molecule types and the concentration of water solutions of the small molecules) of each step are improved, so that the small molecular water-soluble micro-needle with an extremely rapid dissolving speed and good mechanical properties canbe prepared; compared with the prior art, the problems of a current high molecular water-soluble micro-needle that the time of a preparation process is long, the dissolving speed of the micro-needle is slow and the like can be effectively solved.

The invention relates to the technology of macromolecular thermoplastic elastomers, and aims to provide a steric compound crystal controlled polylactic acid/hydrogenated polybutadiene supermolecular elastomer. The product is composed of two compounds which are UPy-PLLA-PEB-PLLA-UPy and UPy-PDLA-PEB-PDLA-UPy respectively; in the UPy-PLLA-PEB-PLLA-UPy, chiral carbon in a PLLA block is of a left-handed structure; in the UPy-PDLA-PEB-PDLA-UPy, chiral carbon in a PDLA block is of a right-handed structure; and in the two compounds, the UPy-PLLA-PEB-PLLA-UPy occupies 10% to 90%, and the UPy-PDLA-PEB-PDLA-UPy occupies 90% to 10%. The UPy bonded PLA/PEB supermolecular polymer elastomer is prepared by adopting steric compound crystallized PLLA/PDLA as a hard area and PEB as a soft segment, and the hard segment of the obtained elastomer can be crystallized, and the elastomer is high in melting point, strength and modulus; the content of steric compound crystal can be adjusted by changing the mixed proportion of the two compound, so that the strength, modulus and heat resistance of the elastomer are convenient to control; and by adopting the biology base and biology degradable PLLA and PDLA as the hard segment of the supermolecular elastomer, the pollution generated to the environment is little, the elastomer is green and environment-friendly, and the resources are saved.

The invention discloses a system device and a method for synchronously realizing organic waste disposal and synthesis gas quality improvement. A core part of the system device is an anaerobic synthesis integrated reactor, wherein the anaerobic synthesis integrated reactor sequentially comprises a sludge discharge area, an aeration buffer area, a gas liquid mixing area, a microbial synthesis reaction area, a gas solid liquid separation area and a gas phase pressure stabilizing area from bottom to top. By adopting the system device, organic waste disposal and recycling production of methane in the anaerobic synthesis integrated reactor can be realized, and methanation quality improvement of synthesis gas also can be realized simultaneously. Compared with the prior art, the system device and the method have the advantages that by adopting a microbial technology, while the synthesis gas is led into the anaerobic synthesis integrated reactor to dispose organic waste, gas quality improvement and purification are realized, under normal temperature and normal pressure, most components, except methane, in the synthesis gas can be converted into methane, and a new method is provided for solving the problems of resource shortage, environment pollution, unreasonable energy structure, and the like in the energy field in China.

The invention provides an electrochemical treatment method and device of carbon particles and mainly solves the technical problem that an existing acid oxidation process to treat carbon particles causes great corrosion on equipment and a grafting process fails to meet the environmental protection standard. A carbon particle suspension is placed between an anode and a cathode which are parallel andspaced; a constant voltage is applied between the cathode and the anode by an electrochemical method; by introducing current of constant strength or by means of cyclic voltammetry, the carbon particles are brought to contact with the surface of the anode, and oxygen-bearing nitrogen-bearing functional groups are generated by reacting. The method provided herein as a carbon particle surface treatment method, has the advantages that the raw material is easy to obtain, the cost is low, operation is simple, and large-scale preparation is available; the type, quantity and distribution of the functional groups are controllable.

The invention discloses a 6082 aluminum alloy melted with CuH and a preparation method of the aluminum alloy. The method comprises the following steps of: heating aluminum ingots or molten aluminum till complete melting; adding Si, Fe, Mn, Mg, Cr, Zn and Ti, and completely dissolving and melting the elements; preserving the heat at the temperature of between 700 and 1,000 DEG C after refining, and obtaining an alloy melt; performing degassing purification operation on the alloy melt by using nitrogen or inert gas or mixed gas of the nitrogen and the inert gas in a random ratio, and continuously introducing the gas till the reaction is finished; adding CuH powder into the alloy melt in a fluidized form together with the gas; stirring to make the CuH distributed uniformly in the alloy melt and fully reacted with the alloy melt; and standing, regulating the temperature to 680-730 DEG C, and discharging the molten alloy for casting. By the method, the defects of the properties of the conventional aluminum alloy can be overcome, the toughness, the forming property and the hardening capacity of the aluminum alloy are improved, and a high-end base material is provided for efficient deep processing.

The invention discloses a health preserving rice wine preparation method. According to the present invention, the rice wine prepared through the method has the sweet and delicious taste; the traditional Chinese medicine extraction liquid is added, and the content of the traditional Chinese medicine extraction liquid can be adjusted according to the specific situation of the drinker; and by adding euryale ferox shell and the like, the good health effect can be achieved.

The invention discloses a butt welding material and welding method for TA1-Q235 composite boards. The material comprises a laser cladding layer and a welding material for a copper base layer for TIG welding; a raw material of the laser cladding layer is laser cladding powder, wherein the laser cladding powder is composed of the following components of 30%-40% of Cu powder, 20%-30% of V powder, 10%-20% of Ni powder, 10%-20% of Ag powder and 5%-10% of B powder; a raw material of the copper-based layer for TIG welding is a copper-based flux-cored wire for TIG welding, wherein powder is composed of the following components of 20%-30% of Ag powder, 15%-25% of V powder, 15%-25% of Nb powder, 10%-20% of Ni powder, 5%-10% of Al powder, 5%-10% of Co powder and 5%-10% of B powder; and welding skin is a copper belt. The welding material solves the problem that the TA1-Q235 layered composite boards cannot be directly welded and butted. The invention further discloses a welding method for TA1-Q235 composite boards.

The invention discloses a face nourishing rice wine preparation method. According to the present invention, the rice wine prepared through the method has the sweet and delicious taste; the traditional Chinese medicine extraction liquid is added, and the content of the traditional Chinese medicine extraction liquid can be adjusted according to the specific situation of the drinker; and the good health effect can be achieved.