30results about How to "Have physical properties" patented technology

The invention relates to a preparation method of a protein magnetic imprinting nano sphere, in particular to a preparation method of a protein magnetic imprinting nano sphere which takes one of hemoglobin, muramidase or serum protein as template molecules; the preparation method includes the following steps: synthesizing magnetic nano particles which are Fe3O4 nano particles covered with silicon dioxide on the surfaces; carrying out silanization to the amino-groups on the surface of the magnetic sphere; using glutaric dialdehyde to connect protein; using silylation agent to fix the space structure of template protein; alkaline eluting the protein on the surface of the magnetic sphere to form imprinting sites. The hemoglobin, muramidase or serum protein magnetic nano imprinting polymer sphere prepared by the invention combines the precise and specific identification property of molecular imprinting and the quick separation property of the magnetic nano sphere under the action of an external magnetic field, integrates the advantages of molecular imprinting and the magnetic nano sphere, avoids complex centrifugation operation, plays vital roles in the separation of cells, protein and nucleic acid, the detection of biomolecules, tumor diagnosis and medicine targeting therapy and has promising application prospect in the field of isolation analysis.

Provided is a photo-curable thermosetting composition which has suitable viscosity for application to inkjet printers, can render patterns directly on a PCB substrate, cures at comparatively low temperatures, and further has, after curing, excellent adhesion, chemical resistance, heat resistance, and insulating properties. This photo-curable thermosetting composition is characterized by containing (meth)acryloyl group-containing monomers, blocked isocyanate, and a photo-polymerization initiator and by being applicable to inkjet printing.

Solid laminated wood of a novel structure is composed of first square battens of a novel structure and second square battens of a novel structure. The two kinds of square battens are consistent in shape and structure, wherein a tenon is arranged on the middle portion of the top of each batten in the chordwise direction, side mortises are arranged on the two sides of the tenon on the top of each batten in the chordwise direction, a mortise groove is formed in the middle portion of the bottom of each batten in the chordwise direction, side tenons are arranged on the two sides of the mortise groove in the bottom of each batten in the chordwise direction, and the first square battens of the novel structure are twice as long as the second square battens of the novel structure. When the two kinds of square battens are combined into the laminated wood, the second square battens and the first square battens are spliced in a crossing mode in the shape of three stacked squares so that the tenons and the mortise grooves of the two kinds of battens can be combined and the side mortises and the side tenons of the two kinds of battens can be combined to form a tenon and mortise inlaid structure. In the splicing process, the two kinds of battens are adjusted to be arranged and spliced in the cross mode according to the required wood length so as to form a piece of laminated wood with any length and width; due to the fact that the battens are firmly sleeved with one another as a whole, the formed laminated wood is accordingly stable and firm, and a new type of laminated wood is added for artificial boards.

The invention discloses a suture specially for medical protective equipment. The suture is characterized by taking full drawn yarns (FDYs) as raw materials, primarily twisting the FDYs and then combining the two strands and secondarily twisting the strands into a thread and finally carrying out waterproofing treatment on the thread to obtain the suture. The suture has high strength, prevents leakage, does not have hairiness, is specially used for the medical protective equipment and ensures the medical protective equipment to be used more safely.

The invention relates to the field of data processing, in particular to a regional information synchronizing method and a terminal. The method includes the steps of establishing a virtual entity corresponding to a first role object through a physical engine to obtain a first virtual entity; constructing a first enveloping box and a second enveloping box for the first virtual entity, wherein the radius of the first enveloping box is the radius of an AOI region, and the radius of the second enveloping box is one unit length; when a second enveloping box corresponding to a second role object enters the range of the first enveloping box corresponding to the first role object, reminding a client side corresponding to the first role object to update the information of the AOI region. The regional information synchronizing efficiency is improved without determining geographic information.

The invention belongs to the field of sensor signal simulation, and relates to a thermal resistor sensor signal simulation circuit. The passive thermal resistor sensor signal simulation circuit comprises a digital-to-analog conversion chip, a first operational amplifier, a second operational amplifier, a third operational amplifier, a gear-shifting switch, a plurality of capacitors and a plurality of resistors, wherein the gear-shifting switch is connected with the reference end of the digital-to-analog conversion chip through a voltage follower circuit, and the feedback end and the output end of the digital-to-analog conversion chip are sequentially connected with a filtering circuit and a proportion amplification circuit formed by the operational amplifiers in series. Resistor signals output by the passive thermal resistor sensor signal simulation circuit have the physical characteristics of a real resistor, are strong in band load capacity and are free of interference of subsequent circuits; in addition, digital signals can be linearly converted into thermal resistor signals in a given manner to be continuously output, the output precision is high, and the output range can be adjusted by the gear-shifting switch.

An integrated solid wood panel of an embedded structure is composed of first square strips and second square strips. The shape structures of the two types of square strips are consistent, wherein an arc-shaped tenon is arranged on the chordwise top of each wood strip, an arc-shaped mortise is arranged at the chordwise bottom of each wood strip, but the length of the first square strips must be inconsistent with the second square strips. When the integrated panel is formed by combining the two types of square strips, the second square strips and the first square strips are spliced in a staggered and intersected mode, the arc-shaped tenons and the arc-shaped mortises of the two types of wood strips are matched, the tenon-mortise embedded structure is formed, the two types of wood strips are adjusted to be arranged and spliced in the intersected mode according to the required panel length in the splicing process to form an integrated panel of any length and any width, the integrated panel is relatively stable and firm due to the fact that the whole wood strips are firmly sleeved with one another, and the novel integrated panel is added to artificial boards. The arc-shaped tenons and the arc-shaped mortises are simple in structure and easy to manufacture, the wood strips are quite conveniently spliced, and therefore the work efficiency in the integrated panel manufacturing process is quite high.

The invention discloses a preparation method for an aerogel carbon fiber compound filtering film. The preparation method comprises the following steps: dissolving aerogel into a solvent, adding a dispersing agent, adding 0.1mm carbon fiber into a solution and uniformly stirring; and adding an adhesive, uniformly stirring and then coating onto a base film, thereby acquiring the aerogel carbon fiber compound filtering film. The method is simple in process. The prepared aerogel filtering film has the characteristics of low density of aerogel, high specific surface area and high porosity, has the physical properties of the carbon fiber, has an excellent absorbing effect and is soft and difficult to break.

The invention discloses an oxygen machine capable of continuously supplying oxygen for medical internal medicine detection. The oxygen machine comprises a base, a heating chamber and an oxygen machine, wherein an air box is arranged above the base, an air chest is arranged in the outer wall of the front side of the air box, a water inlet is arranged below the outer wall of the heating chamber, theheating chamber is positioned at one side of an interface disc close to the outside, a panel is fixed in the middle of the oxygen machine, and the oxygen machine is positioned above the air box. An air pressing bag arranged in the oxygen machine is made of plastic cotton materials, air can be transited to a transition air cavity after being extruded, the transition air cavity is made of rubber materials and can resist large elastic pressure, the air enters the air box after flowing at an accelerated speed through a fan and is gathered in the air box to provide sufficient air for the oxygen machine, and the oxygen exchange speed of the oxygen machine is improved. Since a pressure plate is vertically connected with a pressure rod, when the oxygen machine is in use, in order to accelerate the unit flow rate of air entering the oxygen machine, the pressing rod is directly pressed, the operation is simple, and meanwhile, the artificial controllability is strong.

The invention discloses a super absorbent sheet composite material, and a preparation method and an application thereof. The sheet material comprises, by weight, 100 parts of polyvinyl alcohol, 25-60parts of a plasticizer, 0.5 to 2 parts of glucomannan, 0.3 to 1 part of carrageenan, 10 to 50 parts of super absorbent resin, 0.5 to 1 part of a dispersing agent, 0.5-1 part of a powder auxiliary dispersant and 0.5 to 1 part of a slipping agent. The preparation method comprises the following steps: respectively metering the raw materials, adding the metered raw materials into a bin of an internalmixer, starting the internal mixer, heating and blending until polyvinyl alcohol is completely plasticized, discharging, feeding into a single-screw extruder, extruding into sheets by using a die head, carrying out three-roller calendering molding, cooling and shaping, trimming, and rolling to obtain the super absorbent composite sheet finished product. The super absorbent sheet composite materialnot only has higher normal saline absorption rate, but also has excellent normal saline retention rate, and can be applied to the fields of hygiene care, agriculture, forestry, civil construction, petrochemical engineering and the like.

The invention discloses a novel die bonding film. The film is characterized by comprising nano metal powder, antioxidant, soldering flux, stabilizer and active agent, wherein the content of the nano metal powder is 40-95.0 wt.%, the content of the antioxidant is 1-50 wt.%, the content of the soldering flux is 1-50.0 wt.%, and the total amount of the soldering flux, the stabilizer and the active agent is smaller than or equal to 10.0 wt.%. The film is advantaged in that the nanometer metal powder, the antioxidant, the soldering flux and other materials are mixed and pressed to form a film, highheat dissipation can be achieved, thickness is uniform, flatness of a die bonding layer is well controlled, die bonding and interconnection under the low-temperature condition are achieved on the premise that electrical performance of a semiconductor packaging interconnection module is not affected, and use under the conditions of small spacing, high power, high temperature, high pressure and thelike can be met. The solid crystal film can be used in the fields of power electronic application, IGBT packaging, photoelectron packaging, MEMS packaging, microelectronics, high-power LED packagingand the like.

The invention discloses a preparation method for an aerogel carbon fiber compound filtering film. The preparation method comprises the following steps: dissolving aerogel into a solvent, adding a dispersing agent, adding 0.1mm carbon fiber into a solution and uniformly stirring; and adding an adhesive, uniformly stirring and then coating onto a base film, thereby acquiring the aerogel carbon fiber compound filtering film. The method is simple in process. The prepared aerogel filtering film has the characteristics of low density of aerogel, high specific surface area and high porosity, has the physical properties of the carbon fiber, has an excellent absorbing effect and is soft and difficult to break.

The invention discloses a low-smoke halogen-free flame-retardant polyolefin sheath material for a data cable. The low-smoke halogen-free flame-retardant polyolefin sheath material comprises the following raw material components in parts by weight: 40-80 parts of an ethylene-vinyl acetate copolymer; 3-10 parts of an ethylene-methyl methacrylate copolymer; 5-20 parts of an ethylene-octylene copolymer; 5-20 parts of modified polyethylene; 150-220 parts of an inorganic flame retardant; 3-10 parts of wollastonite; 3-10 parts of nano aluminum nitride; 10-20 parts of flame-retardant charring master batch; 1-3 parts of a silane coupling agent; 1-5 parts of a lubricant; 2-5 parts of color master batch; and 1-3 parts of an antioxidant. According to the present invention, the product has excellent heat resistance, during the high current resistance test, the fuming time from the energization to the beginning is long, the fuming amount is small, the foaming time is long, and more importantly, the foaming is small and less, even no foaming is generated, and the yellowing time and the cracking time are long. The material can well meet the requirement that a CAT6 / 6A type data cable of a UTP structure passes through bunching C type combustion, and other performance indexes also reach or exceed corresponding industrial standards.

The present invention provides a photocurable thermosetting composition, which has a viscosity corresponding to that suitable for an inkjet printer, can directly draw a pattern on a substrate for a printed circuit board, and can be cured at a relatively low temperature. After curing, it has Excellent adhesion, chemical resistance, heat resistance, and insulation. The present invention provides a photocurable thermosetting composition characterized by containing a (meth)acryloyl group-containing monomer, a blocked isocyanate, and a photopolymerization initiator, and is suitable for printing by an inkjet method.

The invention relates to a method for synthesizing a macromonomer, which belongs to the technical field of macromonomer preparation. The method uses a strong base and a compound containing double bonds and active hydrogen as an initiating system to initiate homopolymerization or copolymerization of vinyl monomers or cyclic monomers, and synthesize macromonomers containing terminal double bonds in one step. The polymerization reaction conditions of the present invention are mild, and the raw materials used have industrial products, which are suitable for industrial production, and the prepared macromonomer structure is rich, which not only has the physical characteristics of polymers, but also has chemical reactivity. Polymers, degradable polymers and nano-polymer particle materials are widely used.

The invention discloses an oil injector sealing gasket of an internal combustion engine. One to three ring-shaped bulges are formed on the lower surface of the oil injector sealing gasket; the lower surface of the oil injector sealing gasket is in contact with a gas cylinder cover; one to three ring-shaped grooves are formed in the plane of the gas cylinder cover, and mutually matched with the ring-shaped bulges on the oil injector sealing gasket; the upper surface of the oil injector sealing gasket is arch-shaped and in contact with an oil injector. The oil injector sealing gasket has the advantages of being simple in structure and convenient to machine; the sealing effect and the reliability are excellent; the oil injector has a positioning function, so that the assembly and work reliability can be guaranteed.

The invention discloses an oil injector sealing gasket of an internal combustion engine. One to three ring-shaped bulges are formed on the lower surface of the oil injector sealing gasket; the lower surface of the oil injector sealing gasket is in contact with a gas cylinder cover; one to three ring-shaped grooves are formed in the plane of the gas cylinder cover, and mutually matched with the ring-shaped bulges on the oil injector sealing gasket; the upper surface of the oil injector sealing gasket is arch-shaped and in contact with an oil injector. The oil injector sealing gasket has the advantages of being simple in structure and convenient to machine; the sealing effect and the reliability are excellent; the oil injector has a positioning function, so that the assembly and work reliability can be guaranteed.

The invention discloses a multifunctional anionic polymer composite additive and a preparation technology thereof, and relates to the field of additives. The additive is prepared from the following raw materials in parts by weight: 1-100 parts of a 1,3-butadiene-styrene-divinyl benzene (B-sty / DVB) terpolymer and 0-50 parts of a nano anion additive. The multifunctional anionic polymer composite additive has the beneficial effects that (1) the polymer product contains a polybutadiene polymer block chain, so that the polymer product can form an interface phase together with partial organic interface; (2) the polymer product contains the polybutadiene polymer block chain, so that the chain length can be regulated by adding a monomer and an initiator; (3) a capsule formed by the product wraps partial anion additive in the product, so that the partial anion additive is not easily separated in the modification process; (4) the mixture wraps the anion additive, so that all characteristics of the anion are included; and (5) the mixture is polymer and inorganic nonmetal blend, so that the mixture has physical characteristics of the polymer and the inorganic nonmetal.

The invention discloses a bionic microphone pickup device and a bionic spatial audio algorithm based on the same. The device comprises a socket and a modular microphone head, the socket is provided with at least two concave jacks used for inserting the modular microphone head, and the modular microphone head is connected with the concave jacks through standard interfaces. The modular microphone head is a bionic ear microphone head. The socket comprises an upper horizontal layer, a middle horizontal layer and a lower horizontal layer, and each horizontal layer is provided with one to four pairsof inwards-concave jacks which are oppositely arranged left and right. By using the multichannel bionic ear microphone head, bionic audio information of different rotation angles during look-up, head-up and top-down of a human head can be collected, and multichannel audio is calculated in real time and output to the earphone in combination with head movement track parameters, so that a more realistic sound effect of restoring a real sound field is achieved, and more excellent auditory experience is brought to people.

The invention discloses a dyeing method for preparing a jean fabric from cotton fiber. The method includes the process for dyeing oxygen-bleached cotton fiber before spinning. The dyeing process includes the steps of preprocessing, dyeing and post-processing. By means of the method, in the preparation process of the jean fabric with the cotton fiber as the raw material, the oxygen-bleached cotton fiber is dyed, the jean fabric is prepared through spinning and other procedures after the oxygen-bleached cotton fiber is dyed through a fiber dyeing method, the problems that in the jean fabric production process, the yield is low and environment protection does not reach the standard are solved easily, and the method is suitable for wide use and popularization.

A copolycarbonate ester produced from a polymerizable composition according to the present invention can have various physical properties by being copolymerized through the melt polycondensation of: 1,4:3,6-dianhydrohexitol and / or a diol compound other than 1,4:3,6-dianhydrohexitol; a carbonate compound; and a petroleum-based and / or bio-based diphenyl ester and / or an additional diphenyl ester compound other than the petroleum-based and / or bio-based diphenyl ester, and can thus be usefully applied to the manufacture of segmented products.

The invention discloses a high-water-absorption film composite material and a preparation method thereof. The film composite material comprises the following components in parts by weight: 100 parts of polyvinyl alcohol PVA, 10-20 parts of main plasticizer, 5-10 parts of auxiliary plasticizer, 5-30 parts of high-water-absorption resin, 0.5-2 parts of filling material, 0.3-1.0 part of slipping agent, and 0.5-1.0 part of dispersing agent. The components are uniformly dispersed at a high speed and then subjected to twin-screw extrusion granulation, and extrusion-blown molding film-forming is carried out to prepare the film composite material. The high-water-absorption film composite material prepared by the preparation method has a high normal saline absorption rate, and presents a high normal saline retaining rate. The high-water-absorption film composite material can be applied to the fields of hygiene care, agriculture, forestry, gardening, medicine and health, civil construction, petrochemical engineering, and the like.

The invention discloses a force-feedback-based robot micro-wound operation simulating system, and relates to a computer virtual simulation system which is designed, aiming at the research status of robot micro-wound operation and problems and defects of the existing simulation technology. A database module in the simulation system provided by the invention is used for storing original data of medical images, robot micro-wound operation equipment model data and motion constrain information; an image processing module is used for converting image data in the database module into three-dimensional volumetric data; a physical modeling module is used for constructing a geometrical model according to the three-dimensional volumetric data; a force feedback module is used for calculating the sizeand direction of feedback force according to the geometrical model and parameters output by a force feedback perception device, outputting the force feedback data to the force feedback perception device, so that operators can feel the force through the force feedback perception device; and a graph rendering module is used for acquiring rendered image information according to collision informationsent by the force feedback module and robot motion information sent by the database module and outputting the image information.

The invention discloses a multifunctional anionic polymer composite additive and a preparation technology thereof, and relates to the field of additives. The additive is prepared from the following raw materials in parts by weight: 1-100 parts of a 1,3-butadiene-styrene-divinyl benzene (B-sty / DVB) terpolymer and 0-50 parts of a nano anion additive. The multifunctional anionic polymer composite additive has the beneficial effects that (1) the polymer product contains a polybutadiene polymer block chain, so that the polymer product can form an interface phase together with partial organic interface; (2) the polymer product contains the polybutadiene polymer block chain, so that the chain length can be regulated by adding a monomer and an initiator; (3) a capsule formed by the product wraps partial anion additive in the product, so that the partial anion additive is not easily separated in the modification process; (4) the mixture wraps the anion additive, so that all characteristics of the anion are included; and (5) the mixture is polymer and inorganic nonmetal blend, so that the mixture has physical characteristics of the polymer and the inorganic nonmetal.

The invention discloses a novel crystal-bonding film, which is characterized in that it includes nano-metal powder, antioxidant, flux, stabilizer, and active agent; the content of the nano-metal powder is 40-95.0wt.%, and the content of the antioxidant is 1 –50wt.%, the flux content is 1-50.0wt.%, and the total amount of flux, stabilizer and active agent is ≤10.0wt.%. Nano-metal powder, antioxidant, flux and other materials are mixed and pressed to form a film, which can achieve high heat dissipation, uniform thickness, and good control of the flatness of the die-bonding layer, without affecting the electrical performance of the semiconductor packaging interconnection module. Die bonding and interconnection under low temperature conditions, and can be used under conditions such as small spacing, high power, high temperature and high pressure. The die-bonding film can be used in power electronics applications, IGBT packaging, optoelectronic packaging, MEMS packaging, microelectronics, high-power LED packaging and other fields.

The invention discloses a high water absorption sheet composite material, its preparation method and application. The sheet includes the following raw material components in parts by weight: 100 parts of polyvinyl alcohol; 25-60 parts of plasticizer; 0.5-2 parts of glucomannan; 0.3-1 part of carrageenan; 10 parts of superabsorbent resin ‑50 parts; 0.5‑1 part of dispersant; 0.5‑1 part of powder auxiliary dispersant; 0.5‑1 part of slip agent. After the raw materials of each component are measured separately, they are added to the silo of the internal mixer, started up and heated to raise the temperature and blended until the polyvinyl alcohol is completely plasticized, and the material is discharged into the single-screw extruder and extruded into sheets through the die head, and then passed through three stages. Roll calendering, cooling and shaping, trimming, and winding are finished products of super absorbent composite sheet. The superabsorbent sheet composite material not only has a high absorption rate of physiological saline, but also has an excellent performance in the retention rate of physiological saline; it can be used in the fields of health care, agriculture, forestry, civil engineering, petrochemical and other fields.

The invention discloses a generation method for digital paper with physical property and being stored in a single XML (Extensive Makeup Language) file. The generation method is characterized by comprising the following steps of (1) defining the physical property of the digital paper on the basis of the physical property of the traditional paper; (2) defining the file attribute of the digital paper; (3) defining a digital paper file structure on the basis of the defined physical property of the digital paper and the defined file attribute of the digital paper; (4) customizing a value of the physical property of the digital paper and a value of the file attribute of the digital paper in real time; and (5) generating digital paper files which respectively correspond to the value of the physical property of the digital paper and the value of the file attribute of the digital paper on the basis of the defined digital paper file structure. According to the generation method disclosed by the invention, the digital paper of which the visual effect is similar to that of the traditional paper is generated and the basis is provided for simulating the ink expression effect of the traditional paper and the writing force expression effect of the traditional paper; and in addition, digital paper file contents generated by the generation method disclosed by the invention can be communicated and shared among different systems and different programming languages.

The invention discloses a method for preparing a jean fabric. The method comprises the following steps: performing oxygen bleaching, dyeing, spinning, weaving and washing on cotton fibers, thereby obtaining the jean fabric, wherein the dyeing step comprises pre-treating, dyeing and performing after-treatment, thereby obtaining the dyed fiber product. According to the method disclosed by the invention, the cotton fibers serve as raw materials, the cotton fibers subjected to oxygen bleaching are dyed, spun and woven so as to obtain the jean fabric, the problems of the existing jean fabrics such as great waste, environmental pollution, extremely low accepted rate, high labor intensity, low color fastness and poor dyeing operating environment in the operating process of dyeing spun yarns or dyeing woven fabrics are solved, the problems that the jean fabric is low in yield, environmental protection does not reach the standard and the like are solved, and the method is suitable for wide popularization and application.

The embodiment of the invention provides a multifunctional double-sided dual-purpose fitness mat and a preparation method thereof, and relates to the technical field of fitness mats. The multifunctional double-sided dual-purpose fitness mat comprises a damping slow-elastic layer and a high-elastic layer, the damping slow-elastic layer is made of thermoplastic damping slow-elastic materials, the high-elastic layer is connected to one side of the damping slow-elastic layer, and the high-elastic layer is made of thermoplastic high-elastic materials. Therefore, multifunctional double-sided dual-purpose fitness mat has excellent shock absorption performance and rebound resilience, can achieve the effect of high elasticity or buffering power, and simultaneously realizes shock absorption, buffering and high elasticity, so that a body-building exerciser can choose to use the mat according to exercise needs.