30results about How to "Valid link" patented technology

The invention discloses a preparation method and application of a high thermal and electrical conductivity adhesive. The heat transfer between a high-frequency, high-heat and high-density electronic chip and a heat sink is satisfied, and the reliability and the stability of the service of high-power electronic components are improved. A conductive filler used in the high thermal and electrical conductivity adhesive provided by the invention is nano-silver heat-reduced from flake silver powder and an organic silver complex. The high thermal and electrical conductivity adhesive is prepared fromthe following raw materials by mass percent: 65 to 75 wt% of flake silver, 13 to 22 wt% of organic silver complex, and 12 to 18 wt% of organic carrier. The preparation method and application of the high thermal and electrical conductivity adhesive disclosed by the invention have the advantages that an organic silver complex solution is adopted to effectively regulate and control the viscosity of aslurry, the microscopic interface defects caused by the flake silver as a 'framework' are overcome, the phonon transmission efficiency is improved, and a more efficient thermal conductivity path is constructed; on the other hand, during heat curing, the organic silver complex undergoes in-situ reduction sintering while resin is cured by heating, an effective link between a substrate and a chip can be achieved, and a high-thermal-conductivity structure can be constructed.

The invention provides an antibacterial material and a preparation method thereof. The antibacterial material is characterized by comprising a polymer matrix in which silver-loaded non-metallic mesoporous materials are scattered. The preparation method of the antibacterial material includes the steps that the silver-loaded non-metallic mesoporous materials are prepared; the silver-loaded non-metallic mesoporous materials and raw materials containing polymer monomers are subjected to in-situ polymerization and direct spinning of melt or polymerized products are subjected to blended spinning so that antibacterial fibers containing the silver-loaded non-metallic mesoporous materials can be prepared; or the silver-loaded non-metallic mesoporous materials and polymer materials are blended and pelletized, and the antibacterial fibers containing the silver-loaded non-metallic mesoporous materials are prepared through melt spinning. The material has a lasting antibacterial effect.

The invention provides an efficient and lasting antibacterial polyamide fiber based on silver-loaded zirconium phosphate and a preparation method thereof. The efficient and lasting antibacterial polyamide fiber based on the silver-loaded zirconium phosphate is characterized in that the fiber comprises a polyamide matrix, and silver-loaded zirconium phosphate powder is dispersed in the polyamide matrix. The preparation method includes the steps that first, the zirconium phosphate powder and a poly sulfhydryl compound are dispersed in organic solvent; then silver nitrate is added to be stirred for 12-24 hours, the organic solvent is removed through the spray drying process, the obtained powder is placed in the environment of 800-1200 DEG C to be calcined for 1-6 hours, and accordingly silver-loaded zirconium phosphate nano-powder is obtained; second, the silver-loaded zirconium phosphate nano-powder and polyamide resin are pelleted through a double-screw pelletizer, so that a polyamide master batch with the antibacterial function is obtained; third, the polyamide master batch with the antibacterial function and the polyamide resin are subjected to melt spinning, and thus the antibacterial polyamide fiber based on the silver-loaded zirconium phosphate is prepared. The antibacterial polyamide fiber has the advantages of being efficient and lasting in antibacterial action.

The invention discloses serial compounds with triptycene as a framework and in bridge connection with metalloporphyrin through pyrene tetrone and a preparation method therefor, and belongs to the photoelectric conversion material field. The compound molecular formula is C320H348N24M3. The structural formula is shown in the specification. Triptycene is subjected to nitration by utilization of concentrated nitric acid, and 2,6,14-trinitro-triptycene; after reduction, a reaction with propionic anhydride, p-toluenesulfonic acid and potassium nitrate is carried out, then sodium hydroxide is added, hydrolysis is carried out, and 2,6,14-triamino-3,7,15-trinitro-triptycene is prepared; after reduction of stannous chloride, ethanol and concentrated hydrochloric acid, 2,3,6,7,14,15-hexaamino triptycene hexachloro hydrochloride. 3,5-bis-tert-butyl benzaldehyde and pyrrole are reacted and porphyrin is prepared; porphyrin is reacted with cupric acetate and cupric nitrate solutions and nitro copper porphyrin is prepared; 4-amino-1,2,4-triazole is added, a reaction is carried out, and an amino substituted nitro copper porphyrin is prepared; after reduction, diamino copper porphyrin is prepared. 2,3,6,7,14,15-hexaamino triptycene hexachloro hydrochloride and 2,7-bis-tert-butyl pyrene-4,5,9,10- tetrone are reacted, and a compound 1 is prepared; the compound 1 is reacted with the diamino copper porphyrin, and a compound 2 is prepared; after metal removal, a reaction with a methanol solution of corresponding metal acetate is carried out, and the compound is prepared.

The invention discloses a suspension system with linkage of two vehicle axles, mainly comprising a double seat beam, a rubber spring system and the like, wherein the double seat beam is used for realizing linkage of a first vehicle axle and a second vehicle axle adjacent in a vehicle and is connected with a vehicle frame through the rubber spring system. The invention can solve a series of problems of the traditional suspension system and has good practicability and market potential.

The invention discloses a preparation method of a graphene-modified waste tire thermal cracking carbon black nano composite material, which mainly comprises the following steps: preparing graphene oxide, preparing a thermal cracking carbon black aqueous suspension, carrying out wet blending, acidification, purification and chemical modification on the graphene oxide and the thermal cracking carbonblack aqueous suspension, and finally, carrying out aftertreatment and high-temperature heat treatment to obtain the product. The ash content in pyrolytic carbon black of waste tires in the finally obtained product is greatly reduced; after chemical modification, graphene oxide forms chemical bonding on the surface of carbon black, the agglomeration problem caused by independent addition of graphene can be avoided in the use process, the graphene makes up for performance loss caused by independent use of pyrolytic carbon black, and the service life of the product is prolonged. According to the production process, the organic combination of a graphene production process and a cracked carbon black modification process is comprehensively utilized, so that the product performance is excellent, the production process is energy-saving, and the production process is suitable for large-scale production.

The invention provides an efficient and lasting antibacterial polyamide fiber based on silver-loaded zirconium phosphate and a preparation method thereof. The efficient and lasting antibacterial polyamide fiber based on the silver-loaded zirconium phosphate is characterized in that the fiber comprises a polyamide matrix, and silver-loaded zirconium phosphate powder is dispersed in the polyamide matrix. The preparation method includes the steps that first, the zirconium phosphate powder and a poly sulfhydryl compound are dispersed in organic solvent; then silver nitrate is added to be stirred for 12-24 hours, the organic solvent is removed through the spray drying process, the obtained powder is placed in the environment of 800-1200 DEG C to be calcined for 1-6 hours, and accordingly silver-loaded zirconium phosphate nano-powder is obtained; second, the silver-loaded zirconium phosphate nano-powder and polyamide resin are pelleted through a double-screw pelletizer, so that a polyamide master batch with the antibacterial function is obtained; third, the polyamide master batch with the antibacterial function and the polyamide resin are subjected to melt spinning, and thus the antibacterial polyamide fiber based on the silver-loaded zirconium phosphate is prepared. The antibacterial polyamide fiber has the advantages of being efficient and lasting in antibacterial action.

The invention provides a preparation method of zirconium phosphate powder with high silver-carrying content. The preparation method is characterized by comprising the steps that mesoporous zirconium phosphate powder and a multi-sulfhydryl compound are dispersed into organic solvent, and airtight ultrasonic dispersion is conducted for 0.5-2 h; silver nitrate is added, stirring is conducted for 12-24 h, the organic solvent is removed through a spray drying method, obtained powder is calcined for 1-6 h under the environment of 800-1200 DEG C, and the zirconium phosphate powder with the silver mass content ranging from 3 percent to 8 percent is obtained. According to the preparation method of the zirconium phosphate powder with the high silver-carrying content, the multi-sulfhydryl compound can be effectively dispersed on pores and the surface of zirconium phosphate, and a bonding effect is firstly achieved between sulfydryl groups and hydroxyls on the surface of the zirconium phosphate; when the silver nitrate is added, sulfydryl groups which are not reacted can be effectively bonded with silver ions, so that a larger number of the silver ions enter mesoporous of the zirconium phosphate and are bonded to the surface of the zirconium phosphate, and zirconium phosphate particles with high silver-carrying content are formed.

The invention discloses a wood preservative modification treatment method. The wood preservative modification treatment method is characterized in that wood is treated by using a chemical agent containing quercetin and oxalic acid, wherein the quercetin is grafted to the cell wall of the wood through the oxalic acid. The specific method comprises the steps that 5-20 parts of quercetin and 2-50 parts of oxalic acid are weighed and dissolved in 150-300 parts of absolute ethyl alcohol, 0.4-2 parts of p-toluenesulfonic acid is added, and the chemical agent for treating wood is formed; the wood tobe treated is soaked for 48-96 h at normal temperature and normal pressure; and the impregnated wood blocks are placed in the environment of 120 DEG C to be treated for 2-8 h. According to the method,effective chemical bond combination can be formed between quercetin and wood cell walls, the durability of wood is improved, the loss resistance of the wood is improved, the technical problem that quercetin serving as a botanical natural antibacterial component is difficult to fix and easy to lose in the wood is solved, and the application of quercetin in the technical field of wood preservationis expanded.

[Problem] To achieve an engine generator device in which effective utilization of containers is achieved by housing a generator functional unit, which itself houses an engine and a generator driven by said engine, in a longer generator container, and housing, in a shorter waste heat utilizing container, a heat converter and a boiler utilizing the heat discharged by the engine, wherein the two containers are effectively linked without the need for routing pipes or cables, which also saves space and makes for excellent maintainability even after assembly. [Solution] This container unit consists of a combination of: a longer generator container (20) which comprises a water-cooled engine (21) arranged in approximately the central position in the longitudinal direction of the container, and, on either side of the engine (21), a radiator (4) arranged on the 0f side of the container and a generator (22) arranged on the 40f side of the container, and which is provided with an engine exhaust gas outlet (21a) in approximately the central portion of the container directly above said engine; and a shorter waste heat utilizing container (1) comprising a muffler (2) arranged upright on the 20f side of the container, with an exhaust gas inlet (2a) in the top wall of the container, and comprising a boiler (4) which is disposed inside of the container space further towards the 0f side of the container than where the muffler stands upright and which generates steam by taking in exhaust gas of the engine (21) through the muffler (2). The longer generator container (20) and the shorter waste heat utilizing container (1) configure a combination unit in which longitudinal walls face one another and are aligned in parallel in the longitudinal direction, and the radiator (4) is arranged adjacent to the wall opposite of the wall facing the shorter waste heat utilizing container (1) and extends along said opposite wall.

The present invention provides an antibacterial polyester fiber based on a silver-containing zirconium phosphate, and a method for preparation thereof. The antibacterial polyester fiber based on a silver-containing zirconium phosphate is characterized in that it comprises a polyester matrix, said polyester matrix having dispersed therein a silver-containing zirconium phosphate powder. The preparation method comprises: preparing a silver-containing zirconium phosphate nanopowder; adding the silver-containing zirconium phosphate nanopowder, terephthalic acid, and a diol to a polyester reactor to prepare a silver-containing zirconium phosphate antibacterial polyester by in situ polymerization; using melt direct spinning to prepare an antibacterial polyester fiber based on a silver-containing zirconium phosphate, or pelletizing the silver-containing zirconium-phosphate antibacterial polyester to obtain a silver-containing zirconium-phosphate antibacterial polyester masterbatch, and using a masterbatch blending spinning method to prepare an antibacterial polyester fiber based on a silver-containing zirconium phosphate. The antibacterial polyester fiber prepared in the present invention has the feature of a long-lasting highly effective antibacterial function.

The invention discloses a three-axle linked suspension system, which comprises a double-seat beam, a balance beam and a rubber spring system, wherein the double-seat beam realizes linkage of adjacent first axle and second axle in a vehicle; and the balance beam is connected with a third axle and the double-seat beam through the rubber spring system and realizes linkage between the third axle and the first axle and the second axle. The suspension system can solve a series of problems of the conventional suspension system and has high practicality and good market prospect.

The invention discloses a shoe sole bonding pretreatment method. The method comprises the steps of irradiating a bonding surface of a shoe sole by using short wave ultraviolet light with the wavelength of 185nm to generate a high-molecular compound with the polarity on the bonding surface of the shoe sole, and removing organic pollutants on the bonding surface of the shoe sole by utilizing ozone generated by irradiating air by utilizing the short wave ultraviolet light. According to the method, the short wave ultraviolet light with the wavelength of 185nm can perform bond breaking on the high-molecular compound on the bonding surface of the shoe sole, so that the high-molecular compound with the polarity is generated on the bonding surface of the shoe sole, the same technical effect as physical polishing or chemical corrosion is achieved, the bonding surface of the shoe sole can be effectively connected with glue, and the bonding strength of the shoe sole is enhanced; and in addition, the short wave ultraviolet light with the wavelength of 185nm can convert oxygen in the air into ozone with strong oxidation property, so that small molecular organic compound pollutants on the bonding surface of the shoe sole can be effectively oxidized to achieve a cleaning effect, the shoe sole and the glue can be fully connected, and the bonding quality of the shoe sole can be effectively ensured.

The invention belongs to the technical field of special engineering plastic films and particularly relates to a polyimide composite film and a preparation method thereof. The polyimide composite filmcomprises a layer A and a layer B, wherein the layer A comprises polyimide resin and inorganic filler, and the layer B comprises polyimide resin and porous particles. The preparation method includes the steps of firstly, preparing a size-stable polyamide acid gel solution A; secondly, preparing low-density buffer type polyamide acid gel solution B; thirdly, subjecting the polyamide acid gel solution A to tape casting film forming to obtain a gel film A; fourthly, coating two sides of the gel film A with the polyamide acid gel solution B; fifthly, stretching, and performing imidization to obtain the polyimide composite film. The preparation method can satisfy the processing requirements of sputtering-method adhesive-free flexible copper clad laminates. The prepared polyimide composite filmis high in double-sided copper foil binding force, high in size stability, excellent in bending resistance and the like.

The invention relates to a fire fighting device, and discloses an extrusion type indoor fire hydrant. The extrusion type indoor fire hydrant comprises a hydrant body with an inner cavity, and the outer wall of the hydrant body is connected with a base and a connecting base. A valve clack capable of opening and closing an input channel is hinged to a port of the end, close to the inner cavity of the hydrant body, of the input channel. The outer wall of the hydrant body is further connected with a sleeve, and the sleeve and the base are arranged on the two opposite sides of the hydrant body correspondingly. The end, located outside the hydrant body, of the sleeve is in threaded connection with an adjusting bolt. The adjusting bolt stretches into the sleeve, and the front end of the adjustingbolt is provided with a first extrusion plate, an adjusting spring and a second extrusion plate, all of which are sequentially connected. The front portion of the adjusting bolt is provided with a rotation clamping block, and the rotation clamping block is clamped in a containing groove of the first extrusion plate. The face, away from the adjusting spring, of the second extrusion plate is connected with a transmission rod, and the two ends of the transmission rod are hinged to the second extrusion plate and the valve clack correspondingly. The extrusion type indoor fire hydrant achieves thepurposes that before an ignition source is extinguished, the input channel can be rapidly connected, water outflow can be rapidly stopped after the ignition source is extinguished, inner abrasion of the fire hydrant is reduced, and the service life is prolonged.

The invention relates to the field of organic polymer compounds, in particular to polytetrafluoroethylene resin for extruded tubes and a preparation method of the polytetrafluoroethylene resin, and has the main improvements that in the preparation process, polymerization reaction is carried out in two stages, namely polymerization is carried out at low pressure in the earlier stage and polymerization is carried out at high pressure in the later stage; and a modifier A and a modifier B are respectively added in the early stage and the later stage in the polymerization process. The transparent high-strength polytetrafluoroethylene dispersion resin obtained by the method is used for pasty push-extrusion processing of pipes, and the obtained product has the characteristics of straightness, smoothness, continuity, good transparency, good appearance, high strength and the like.

The present invention provides a method for preparing a high-silver-content zirconium phosphate powder, characterized in that same comprises: dispersing in an organic solvent a mesoporous zirconium phosphate powder and a polythiol compound, and subjecting same to ultrasonic dispersion for 0.5-2 hours; adding silver nitrate and stirring for 12-24 hours, then using a spray drying method to remove the organic solvent, and placing the obtained powder into an environment of 800-1200°C and calcining for 1-6 hours to obtain a zirconium phosphate powder having a silver mass content of 3-8%. The polythiol compound in the present invention may effectively disperse into the holes of the zirconium phosphate and onto its surface, and the thiol group first bonds with the hydroxyl on the surface of the zirconium phosphate; upon adding silver nitrate, the unreacted thiol group may effectively bond to silver ions, thus causing a large amount of silver ions to enter the mesopores of the zirconium phosphate and bond to the surface of the zirconium phosphate, forming high-silver-content zirconium phosphate particles.

The invention relates to the field of karst area pile foundation construction, in particular to a steel sleeve wall protecting device and a construction method of a cast-in-place pile in a sandy gravel rock area. The steel sleeve wall protecting device comprises an outer sleeve mechanism, an inner sleeve mechanism, an inner sleeve connector and an outer sleeve connector, the outer sleeve mechanism comprises more than two sections of outer steel sleeves which are fixedly connected in sequence, and the inner sleeve mechanism comprises more than two sections of inner steel sleeves which are fixedly connected in sequence; axial long-strip-shaped plates are evenly distributed on the outer wall of each section of inner steel sleeve, axial long grooves are evenly distributed in the inner wall of each section of outer steel sleeve, the long-strip-shaped plates are arranged in the long grooves in a sliding fit mode, so that the inner sleeve mechanism coaxially slides in an outer steel sleeve mechanism; holes are uniformly formed in the sleeve wall of each section of outer steel sleeve; the steel sleeve protection wall device is used in the construction method of the cast-in-place pile in the sandy gravel rock area, the anti-overturning capacity of the inner steel sleeve when the inner steel sleeve sinks to a karst cave is improved, and the phenomenon of hole position inclination when the inner steel sleeve sinks to the karst cave is prevented.

The invention discloses a suspension system with linkage of two vehicle axles, mainly comprising a double seat beam, a rubber spring system and the like, wherein the double seat beam is used for realizing linkage of a first vehicle axle and a second vehicle axle adjacent in a vehicle and is connected with a vehicle frame through the rubber spring system. The invention can solve a series of problems of the traditional suspension system and has good practicability and market potential.

A smart card (100) which includes a non-volatile read / write memory (230), a resolve buffer (505), a processor (205) connected to the memory (230) and the resolve buffer (505), and an installer module (210) configured to cause the processor (205) to receive computer code having unresolved references into the memory (230), and further configured to cause the processor (205) to perform a method for resolving unresolved references. The method including steps for copying the contents of the memory (230) into the resolve buffer (505), detecting unresolved references in the computer code, determining the resolved reference for each of the detected unresolved references, updating the contents of the resolve buffer (505) with the resolved references, and replacing the contents of the memory (230) with the contents of the resolve buffer (505).

A record carrier of a read-only type has information in a track. The information is subdivided in addressable blocks and a number of blocks constitute an information unit. The information unit is the minimal unit for error correction according to a format for writable record carriers. On the read-only record carrier a linking area is provided between information units. This has the advantage that compatibility with recordable record carriers is improved.

The invention relates to a method for preparing a water-resistant and cold-resistant leather coating agent with high solid content with a pre-emulsified core-shell emulsion polymerization method. A polyacrylic ester coating agent is thermoplastic, so that the defects of 'hot sticking and cold check' exist generally. The method comprises the following steps of: preparing a core layer monomer pre-emulsion by using 0.08-0.12 part of a mixed emulsifying agent and 13-16 parts of a mixed monomer; preparing a shell layer monomer pre-emulsion by using 0.1-0.4 part of a mixed emulsifying agent and 13-18 parts of a mixed monomer; and stirring 0.7-1.0 part of a mixed emulsifying agent, 0.1-0.4 part of sodium bicarbonate and a mixed monomer and 0.04-0.08 part of an initiator, blueing the emulsion, dropwise adding the core layer pre-emulsion and 0.05-0.08 part of an initiator aqueous solution respectively, dropwise adding a shell layer pre-emulsion and 0.08-0.12 part of an initiator aqueous solution simultaneously, reacting and filtering to obtain a product. Due to the adoption of the method, the defects of high-temperature sticking and low-temperature check existing in the conventional polyacrylic ester leather coating agent are overcome effectively, and the water resistance and the solvent resistance of a coating are enhanced simultaneously.

The invention discloses an n-type amorphous oxide semiconductor thin film transistor with a flexible substrate and a preparation method thereof. The flexible substrate is an organic polymer substrateand the n-type ZnAlSnO amorphous oxide film is a channel layer. The preparation method comprises that follow steps of: growing AZO electrode on an organic substrate as a gate electrode; growing 150-300 nm Al2O3 insulation layer; growing morphous ZnAlSnO thin films as channel layer; depositing AZO electrode as source electrode and drain electrode aft that thin film is post-treated; finally, growing a layer of Al2O3 thin film for packaging so as to complete the preparation of the n-type amorphous ZnAlSnO thin film transistor. All the films were prepared by magnetron sputtering. The flexible n-type amorphous oxide semiconductor thin film transistor prepared by the invention has the advantages of full transparency, high mobility, no In element, simple process, low cost and the like, and can be used for the production of high-end flexible display screens.

The invention relates to a continuous long glass fiber reinforced polyoxymethylene material and a preparation method thereof, which is prepared from the following raw materials in weight percentage: 50-80% of polyoxymethylene resin, 10-40% of continuous long glass fiber, and a compatibilizer 1-5%, antioxidant 0.1-5%, coupling agent 0.1-5%, acid absorbing agent 0.1-5%, anti-glass fiber exposure agent 0.1-5%. The continuous long glass fiber reinforced polyoxymethylene material prepared by the present invention has better rigidity and creep resistance than traditional glass fiber reinforced materials, and the tensile strength and bending strength are significantly improved. times, and can still maintain good mechanical properties under high temperature and high humidity, which can meet the application requirements of polyoxymethylene in precision machinery, electronic appliances, light industry, chemical industry, building materials and other industries.

Provided are an antibacterial material and method for preparation thereof, comprising a polymer matrix; a silver-containing non-metallic mesoporous material is distributed within the polymer matrix. The method for preparing the antibacterial material comprises: preparing a silver-containing non-metallic mesoporous material; subjecting the silver-containing non-metallic mesoporous material and a starting material containing a polymer monomer to in situ polymerization and melt direct spinning, or blending and spinning products of polymerization to prepare an antibacterial fiber containing a silver-containing non-metallic mesoporous material; or blending and pelletizing the silver-containing non-metallic mesoporous material and a polymer material, and melt-spinning to prepare an antibacterial fiber containing a silver-containing non-metallic mesoporous material; the antibacterial material has a long-lasting antibacterial effect.

The invention discloses a wood antiseptic modification treatment method. The wood is treated with a chemical agent containing quercetin and oxalic acid, and the quercetin is grafted to the wood cell wall through the oxalic acid. The specific method comprises, weighing 5-20 parts of quercetin and 2-50 parts of oxalic acid and dissolving them in 150-300 parts of absolute ethanol, adding 0.4-2 parts of p-toluenesulfonic acid to form the chemical agent for treating wood; The wood to be treated is soaked at room temperature and pressure for 48‑96 hours; the soaked wood blocks are placed in an environment of 120 ° C for 2‑8 hours. The invention can make quercetin form an effective chemical bond with the wood cell wall, increase the durability of wood, improve its loss resistance, and solve the technical problem that quercetin, as a natural antibacterial component of plant origin, is difficult to fix and easy to lose in wood, The application of quercetin in the field of wood preservation technology has been expanded.

The invention discloses a three-axle linked suspension system, which comprises a double-seat beam, a balance beam and a rubber spring system, wherein the double-seat beam realizes linkage of adjacent first axle and second axle in a vehicle; and the balance beam is connected with a third axle and the double-seat beam through the rubber spring system and realizes linkage between the third axle and the first axle and the second axle. The suspension system can solve a series of problems of the conventional suspension system and has high practicality and good market prospect.