170 results about "Polytetrafluoroethylene sheet" patented technology

The invention relates to a surface-coated oxide solid electrolyte and a preparation method thereof, the surface-coated oxide solid electrolyte comprises an oxide electrolyte and a surface coating layer, the chemical formula of the oxide solid electrolyte is Li7-xLa3Zr2MxO12-x (M = Ta, Nb, Hf, Ge, Sc, Ti, Al, Si, Sn, Y, 0 < = x < = 1), the chemical formula of the surface coating layer is LiXON (R = Ta, Nb, Al, Zr, Ga, In, N = F, Cl, Br, I), and a lithium source, a lanthanum source, a zirconium source, an M source, an X source and an N source, or an XN source are connected in series, garnet solid electrolyte powder with a stable surface coating layer is obtained by adopting a solid phase method or a sol-gel method and combining a low-temperature calcination process; and then mixing and reacting with a lithium salt and a polymer electrolyte, and pouring the obtained slurry on a polyfluortetraethylene plate to prepare the composite electrolyte. Compared with the prior art, the high-ion conductor layer formed on the surface of the product in situ constructs a rapid transmission channel for lithium ion transmission in the composite electrolyte, and high ion conductivity is achieved.

The invention belongs to the technical field of energy storage system device materials, and particularly relates to a modified silk amino acid-based gel electrolyte as well as a preparation method and application thereof. The method comprises the following steps: S1, uniformly mixing and stirring 15 to 30g of acrylamide, 50 to 60g of zinc sulfate heptahydrate, 0.1 to 1g of silk amino acid and 100g of water; adding 5mL to 10mL of ethanol, and uniformly shaking; then sequentially adding a proper amount of N-N methylene bisacrylamide and a photoinitiator, and continuously stirring until the solution is clear to obtain an electrolyte; s2, dropwise adding the prepared electrolyte into a polytetrafluoroethylene (PTFE) plate, and covering the polyurethane fiber membranes obtained by electrostatic spinning on the two sides; and carrying out light curing under ultraviolet irradiation to obtain the modified silk amino acid (M-SAA) gel electrolyte. According to the invention, silk amino acid (SAA) is introduced to construct a compact protective film with a beta folding structure, so that zinc dendrite growth and side reaction are inhibited, and the stability of the zinc negative electrode of the battery and the cycle performance of the battery are improved.

The present invention relates to the technical field of solid electrolytes. Specifically disclosed is a preparation method for a solid polymer electrolyte. The preparation method comprises the steps: step 1, mixing a sodium salt, a graphite-phase carbon nitride nanosheet, a nanoscale inorganic filler and polyoxyethylene to prepare a mixed solution; and step 2, using a solution casting method to cast the mixed solution onto a polytetrafluoroethylene plate, and vacuum-drying same to obtain a polyoxyethylene-based composite sodium ion solid electrolyte film. The polyoxyethylene-based composite sodium ion solid electrolyte prepared by the preparation method has improved ionic conductivity and mechanical properties, exhibits better stability, can improve the stability of sodium batteries, and is suitable to process, manufacture, and widely produce.

The invention discloses a high-color-fastness structural color film and a preparation method thereof, and belongs to the technical field of structural color films, and the preparation method comprises the following steps: S1, adding modified nano colloidal microspheres and carbon black into absolute ethyl alcohol, and carrying out ultrasonic dispersion for 40 min to obtain a microsphere dispersion liquid; s2, uniformly spreading the microsphere dispersion liquid on a smooth and flat polyfluortetraethylene plate, and drying at 40-45 DEG C to obtain a modified microglobulin photonic crystal template; and S3, injecting the modified polyurethane precursor solution into the modified microglobulin stone photonic crystal template, vacuumizing, defoaming, and curing at 80 DEG C to obtain the high-color-fastness structural membrane. According to the invention, the modified nano colloidal microspheres and the carbon black are taken as assembly elements of the photonic crystal, so that the stability of the structural color film is improved, and meanwhile, under the synergistic effect of the modified polyurethane precursor solution, cracks can be effectively prevented, and the photonic crystal structure is prevented from being damaged, so that the color fastness and durability of the structural color film are improved.

The invention relates to a synthesis method of spiny MgF2 (at) ZnO heterojunction nanofibers for a lithium metal solid electrolyte, and belongs to the technical field of all-solid-state lithium batteries. The preparation method comprises the following steps: (1) preparation of a MgF2 nanofiber precursor: obtaining primary MgF2 nanofibers by adopting an electrostatic melting and blowing process; (2) preparation of MgF2 nanofibers: calcining the precursor nanofibers through a temperature programming method to obtain MgF2 inorganic nanofibers; (3) preparation of spiny MgF2 (at) ZnO heterojunction nanofibers: growing regular array ZnO nanowires on the MgF2 nanofibers through a hydrothermal reaction; and (3) preparation of the composite solid electrolyte: introducing the MgF2 (at) ZnO heterojunction nanofiber into a PEO-LiTFSI solution, pouring on a polyfluortetraethylene plate, and drying and hot-pressing for a certain time to obtain a solid electrolyte diaphragm which can be applied to an all-solid-state lithium metal battery.

The invention discloses a preparation method of an all-solid-state cross-linked polymer electrolyte, which comprises the following steps: dissolving polyethyleneimine in a solvent, and stirring for the first time to obtain a first solution; quickly adding lithium salt into the first solution, and stirring for the second time to obtain a second solution; adding polyethylene glycol diglycidyl ether into the second solution, and stirring for 6 hours to obtain a cross-linked polymer electrolyte solution; and pouring the cross-linked polymer electrolyte solution on a polyfluortetraethylene plate, and drying to obtain the all-solid-state cross-linked polymer electrolyte. The all-solid-state polymer electrolyte membrane with a cross-linked network structure is prepared by adopting a rapid cross-linking and solution casting method, the reaction condition is mild, the efficiency is high, and the mechanical strength of the electrolyte is improved; besides, the reaction principle is based on the click reaction of amino and epoxy group, no catalyst, initiator and other impurities need to be introduced, the product is directly obtained from reactants, the reaction is thorough, the system is pure, and potential adverse effects on battery circulation are avoided.

The utility model discloses a bobbin paper guider with positioning and air suction functions, which comprises a U-shaped support and a paper guide plate arranged on the inner side of the U-shaped support, through holes are symmetrically formed in the surfaces of the upper end and the lower end of the paper guide plate, and a polytetrafluoroethylene sheet for reducing friction force between bobbin paper and the front face of the paper guide plate is laid on the front face of the paper guide plate. Limiting plates are symmetrically arranged at the left end and the right end of the front face of the paper guide plate, limiting guide grooves are formed in the side ends of the limiting plates, an air suction cover is arranged on the outer side of the U-shaped support, a negative pressure cavity capable of being communicated with a through hole in the surface of the paper guide plate is formed in the air suction cover, and the negative pressure cavity is connected with a negative pressure dust removal pipeline through a pressure adjusting connector. According to the utility model, the air suction cover is matched with the through hole formed in the surface of the paper guide plate, so that a negative pressure environment capable of adsorbing bobbin paper is formed, and the bobbin paper can be adsorbed on the surface of the paper guide plate all the time in a continuous equipment operation process and is positioned in a paper passing channel formed by the paper guide plate and the limiting guide groove of the limiting plate.

The present invention belongs to the technical field of rotating bridge construction, and specifically relates to a device and method for controlling the posture of an unbalanced rotating cable-stayed rotating bridge. The device comprises a circular slideway disposed between an upper rotating body and a lower rotating body; a sliding assembly, eight of which are evenly arranged on the slideway. The sliding assembly comprises: a footboard disposed below a beam; a sliding steel pad disposed in the forward direction of the bottom of the footboard; and a polytetrafluoroethylene plate disposed between the slideway and the sliding steel pad. While being able to fully control the posture of the bridge during rotation, the present invention overcomes the problems existing in conventional operating methods, achieving a smooth rotation of the bridge at minimal cost and in the simplest operating method.

The invention relates to the technical field of tetrafluoroethylene straight pipe forming, in particular to a steel lining polytetrafluoroethylene straight pipe isobaric forming device and method.The steel lining polytetrafluoroethylene straight pipe isobaric forming device comprises a machining pipe frame, the outer surface of the center of the machining pipe frame is sleeved with a center sleeve base, and a center frame is arranged in the center of the machining pipe frame; first air uniformizing valves are arranged at the four corners of the side face of the center frame, air uniformizing angle seats are fixedly connected to the four corners of the side face of the machining pipe frame, limiting ring seats are fixedly connected to the two ends of the machining pipe frame, and an annular air bag sleeve is arranged on the inner wall of the machining pipe frame. According to the equipment, through the arrangement of the machining pipe frame, the first connecting base, the second connecting base and the electric push rod, the equipment can conduct more efficient isostatic pressing forming on the steel lining polytetrafluoroethylene straight pipe, in the actual use process, a worker firstly places the straight pipe needing to be lined with polytetrafluoroethylene into the machining pipe frame, and then the straight pipe needing to be lined with polytetrafluoroethylene is placed into the machining pipe frame; and then the upper polytetrafluoroethylene plate and the lower polytetrafluoroethylene plate which are in arc-shaped butt joint are inserted into the second butt joint seat.

The invention discloses a polytetrafluoroethylene plate mold pressing mold, and belongs to the technical field of plate molds, the polytetrafluoroethylene plate mold pressing mold comprises a second limiting bearing metal plate, and a first limiting bearing metal plate is arranged above the second limiting bearing metal plate; a plurality of gas transmission supporting pipes used for supporting and fixing the first limiting bearing metal plate are arranged at the two ends of the upper surface of the second limiting bearing metal plate, one end of each gas transmission supporting pipe is fixedly connected with the first limiting bearing metal plate, and the other end of each gas transmission supporting pipe is fixedly connected with the second limiting bearing metal plate. A deformable lower die mechanism is arranged on the upper surface of the second limiting bearing metal plate and fixedly connected with the second limiting bearing metal plate. And through mutual cooperation of multiple structures, a user can carry out applicability adjustment on the mold, so that the mold can be suitable for production of polytetrafluoroethylene plates of different models, and the application range of the mold is wider.

The invention discloses a low-dielectric optical transparent adhesive film and a preparation method thereof, and relates to the field of adhesive films. When the low-dielectric optical transparent adhesive film is prepared, nano silicon dioxide sequentially reacts with 2-(4-chlorosulfonylphenyl) ethyltrimethoxysilane and 2, 2 ', 4, 4'-tetrahydroxybenzophenone, and modified silicon dioxide is prepared; the modified silicon dioxide, 4-vinylpyridine, allyltrimethoxysilane, 2-ethylhexyl acrylate, butyl acrylate, hydroxyethyl acrylate, diallyl phosphate and isophorone diisocyanate are subjected to a reaction, then ferric chloride is added, a polytetrafluoroethylene plate is coated and cured, and an adhesive film matrix is prepared; and carrying out surface treatment on the adhesive film substrate by using dimethoxydimethylsilane to prepare the low-dielectric optical transparent adhesive film. The low-dielectric optical transparent adhesive film prepared by the invention has flame-retardant, durable and waterproof capabilities.

The utility model provides a novel support structure, and relates to the technical field of bridge engineering, the top of a support lower steel plate is fixedly connected with a rubber support, the top of the rubber support is provided with a polyfluortetraethylene plate, and the top of the polyfluortetraethylene plate is fixedly connected with a support upper steel plate. According to the rubber support, under the interaction of all the components of the device, efficient protection treatment of the support structure is achieved, it is ensured that the support structure can still effectively isolate invasion of moisture, dust and harmful substances in the severe environment, therefore, the mechanical property stability of the rubber support is maintained, the service life of the rubber support is remarkably prolonged, and meanwhile the service life of the rubber support is prolonged. According to the protection assembly, the protection effect is guaranteed, meanwhile, balance of gas pressure inside and outside the protection assembly is achieved, the crucial environmental condition is provided for long-term stable operation of the rubber support, and therefore the reliability and durability of the rubber support are guaranteed.

This invention relates to a microwave radiation method for preparing room-temperature phosphorescent polymer films based on polyacrylamide, belonging to the field of organic light-emitting materials. The method involves dissolving acrylamide monomer, ammonium persulfate initiator, and β-diketone ligand in a mixed solvent of water and acetonitrile, placing the solution in a microwave reactor, and polymerizing it under microwave radiation to obtain the polymer. The resulting colloidal solution, dissolved in deionized water, is uniformly coated onto a polytetrafluoroethylene (PTFE) or silicone plate, and dried to obtain the room-temperature phosphorescent polymer film based on polyacrylamide. The prepared polymer film exhibits blue or blue-green fluorescence and a green afterglow. The polymer film containing 4,4,4-trifluoro-1-(2-naphthyl)-1,3-butanedione has an afterglow time of up to 7.5 seconds. The raw materials of this invention are readily available, the preparation method is simple, convenient, and rapid, requiring no inert gas protection, the solvent does not require treatment, polymerization can be completed in minutes, and the obtained material is non-toxic, non-polluting, free of heavy metals and halogens, has good water solubility, and has broad application prospects.

The utility model provides a kind of positioning device of polytetrafluoroethylene board. The positioning device of polytetrafluoroethylene board is used to be installed on saw bench, comprising: pressing structure, the saw bench surface is opened with saw groove, the saw bench surface is opened with two before and after distribution guide groove in the left side of the saw groove, the inside sliding connection of the guide groove has connecting piece, the bottom of two the connecting piece is equipped with adjusting structure, the top of two the connecting piece is fixedly connected with movable positioning block, the pressing structure is installed in the surface of movable positioning block, the pressing structure includes guide rail, the guide rail is located in the left side of movable positioning block and guide rail bottom and two connecting piece between fixed connection, the positioning device of polytetrafluoroethylene board provided by the utility model has the advantage that user can quickly complete positioning block position adjustment, and board can be stably fixed simultaneously.

The invention discloses a self-resetting eddy current friction composite damping vibration double-control seismic isolation device and application thereof. The device comprises a top plate, an array thick rubber body is arranged below the top plate, a permanent magnet set is annularly installed along the thick rubber body, and a polyfluortetraethylene plate is embedded in the lower surface of the thick rubber body; the lateral surface of the top plate is provided with a protective cylinder which is internally provided with a transverse reset spring; polytetrafluoroethylene plates are arranged on the inner surfaces of the vertical baffles, two sliding blocks are arranged on the inner surfaces of the vertical baffles, the sliding blocks are connected through vertical reset springs, and the sliding blocks are hinged to the corresponding protective cylinders through connecting rods. A high-transmittance acrylic plate is mounted between every two adjacent baffles; a copper plate is laid on the upper surface of the base plate. Composite damping cooperative energy consumption is achieved through horizontal friction-eddy current damping and vertical friction, the vertical and horizontal three-dimensional shock isolation function is achieved through the array thick rubber body, and cooperative reset is achieved through the horizontal springs and the vertical springs.

The invention belongs to the technical field of PCBs (printed circuit boards), and particularly relates to a method for manufacturing a polytetrafluoroethylene embedded cavity board, which comprises the following steps of: respectively processing a first copper-clad plate, a second copper-clad plate and a third copper-clad plate, and manufacturing connecting holes and patterns; laminating and bonding the first copper-clad plate, the first bonding sheet and the second copper-clad plate to form a semi-finished plate; the semi-finished board is processed, so that a glue blocking line, a glue blocking groove and a cavity groove are formed in the lower end of the semi-finished board; laser cutting is conducted on the second bonding piece, so that a windowing area is formed in the second bonding piece; and the semi-finished plate, the second bonding sheet and the third copper-clad plate are bonded in a fast pressing mode. According to the invention, the semi-finished plate is manufactured, the semi-finished plate, the second bonding sheet and the third copper-clad plate are pressed in a quick pressing manner, and the cavity plate is manufactured, so that the dielectric constant and the loss factor are reduced, the electrical performance and the signal integrity are improved, and the defect that a polytetrafluoroethylene plate is easy to collapse due to soft pressing is overcome.

The utility model provides a basin-type rubber support with excellent durability, which comprises a lower seat plate, a bottom basin seat is fixed on the outer wall of the top of the lower seat plate, a rubber block is arranged in the bottom basin seat, a middle partition steel plate is connected to the inner wall of the bottom basin seat above the rubber block, and a polytetrafluoroethylene plate is embedded and fixed on the outer wall of the top of the middle partition steel plate. An upper seat plate is arranged at the top of the polyfluortetraethylene plate, a stainless steel plate is fixed on the outer wall of the bottom of the upper seat plate, and the polyfluortetraethylene plate is in contact connection with the stainless steel plate. According to the basin type rubber support, through the arrangement of the cushioning moving positioning assembly, the connecting rod is driven to contract in the barrel pipe under the elastic force effect of a spring, the effect of downward moving and tightening of the lower seat plate is achieved, a stainless steel plate below the lower seat plate is made to make close contact with a polyfluortetraethylene plate, and the cushioning effect of the basin type rubber support is improved; the lower seat plate and the upper seat plate are movably connected in a limited mode, and the transverse cushioning capacity of the pot type rubber support is improved.

The invention discloses a method for three-dimensionally detecting the state of a descaling nozzle. The method specifically comprises the following steps: S1, arranging two polyfluortetraethylene plates on each of the upper and lower surfaces of a test plate at intervals; s2, the roll gap of the rolling mill is swung to the maximum position, and the descaling test plate is conveyed to the rolling mill through a roller path; s3, an inlet side polyfluortetraethylene plate corresponds to an inlet nozzle in position, a rolling mill roll gap is swung to a descaling test position, and a fine descaling inlet is opened for descaling; s4, the roll gap of the rolling mill is swung to the maximum position, the test plate is opened towards the outlet of the rolling mill, the outlet side polyfluortetraethylene plate corresponds to the position of an outlet nozzle, the roll gap of the rolling mill is swung to the descaling test position, and a fine descaling outlet is opened for descaling; s5, the descaling test plate is driven to be close to a roller way, and a crown block is used for hoisting and lowering the descaling test plate onto a rack; s6, performing three-dimensional detection on the descaling nicks in the polyfluortetraethylene plate to realize detection of the state of the nozzle; the method is simple and easy to implement, the striking depth is detected on the basis of detecting the striking length and width, and the state of the descaling nozzle is judged more accurately.

The utility model provides a box body forming mold. The box body forming mold comprises an I-shaped locking block, a temperature-resistant magnet, a polyfluortetraethylene plate and a mold insert; the plurality of mold inserts are detachably connected through the temperature-resistant magnets and the I-shaped locking blocks to form a box-shaped cavity; the polyfluortetraethylene plate is installed on the mold splitting surface and located between the two tightly-attached temperature-resistant magnets, and the polyfluortetraethylene plate can timely supplement a thermal expansion gap generated at the splicing seam of the mold under the high-temperature condition, so that the mold splitting surface forms a sealing surface with a good sealing effect; on one hand, the problem that a splicing gap is increased due to overflow of formed resin can be effectively avoided, on the other hand, the glue cleaning problem of the mold splitting surface can be solved, meanwhile, friction and impact of the mold insert on the temperature-resistant magnet due to disassembly are avoided, and the damage risk of the mold splitting surface due to disassembly is reduced; and an I-shaped locking block is matched, so that the connection tightness between the mold inserts can be ensured, and the rapid disassembly and assembly between the mold inserts can also be realized.

The invention discloses a composite solid-state electrolyte, a preparation method thereof and a solid-state lithium metal battery, and the method comprises the following three steps: preparation of bismuth oxyiodate nanoparticles, preparation of lithium lanthanum titanium oxide nanorods and preparation of the composite solid-state electrolyte, the preparation method comprises the following steps: dissolving lithium bis (trifluoromethanesulfonimide) LiTFSI and polyvinylidene fluoride (PVDF) into N, N-dimethylformamide to obtain a first mixed solution, respectively weighing bismuth oxyiodate powder and 0.1 g of lithium lanthanum titanium oxide nanorods, adding the weighed bismuth oxyiodate powder and 0.1 g of lithium lanthanum titanium oxide nanorods into the first mixed solution, carrying out ultrasonic treatment and stirring to obtain a second mixed solution, pouring the second mixed solution into a polytetrafluoroethylene plate, and carrying out ultrasonic treatment to obtain the bismuth oxyiodate / lithium lanthanum titanium oxide composite material. And drying in vacuum to obtain the composite solid electrolyte, wherein the mass fraction of the bismuth oxyiodate powder in the second mixed solution is 5-20%. The invention solves the technical problems of low ionic conductivity and lithium dendrite growth of the solid electrolyte in the prior art.

The utility model relates to an oil seal with a rubber spring structure, which comprises a framework, a polytetrafluoroethylene sheet fixed on one side of the framework, a stainless steel spring arranged between the polytetrafluoroethylene sheet and the framework, one end of the stainless steel spring connected with the framework, rubber arranged on one side of the framework, and the polytetrafluoroethylene sheet arranged at the bottom of the rubber. A part of memory contraction force is actively abandoned by improving and adding the stainless steel spring, and the stable journal sticking force is increased by the spring, so that the service life of the stable journal sticking of the PTFE lip is multiplied.

The application provides a heat insulation door, which comprises a chamber, two mounting plates are fixedly mounted on the top surface of the chamber, a supporting hole is formed in one side of the mounting plate, and a bearing is fixedly sleeved in the supporting hole; and a folding assembly is arranged in the chamber and used for folding the heat insulation plate, a first steel cable is pulled by rotating a driving motor, the heat insulation plate is folded and contracted under the linkage of a first silicon rubber strip and a second silicon rubber strip, the chamber is opened, the heat insulation plate occupies a small space when being opened, the space occupation of the central isolation chamber is greatly reduced, a contraction cavity does not need to be added on the chamber, the heat insulation effect is ensured, the heat insulation plate is a polytetrafluoroethylene plate, has the excellent characteristics of high and low temperature resistance and strong heat insulation capacity, the reflecting layer is an aluminum foil, heat transfer caused by radiation in the chamber is reduced, and heat dissipation is reduced.

The invention discloses a cylindrical cavern energy storage structure lining tank mounting method, and relates to the field of tunnel construction. The installation method of the cylindrical cavern energy storage structure lining tank comprises the following steps that at least two rows of sliding supporting bosses arranged at intervals in the length direction of a cavern are arranged at the bottom of the cavern, and polyfluortetraethylene plates are arranged at the tops of the sliding supporting bosses; a plurality of sliding rails and at least two temporary brackets capable of sliding along the sliding rails are arranged outside the cavern; the lining tank is hung on a temporary bracket to be supported; a pushing mechanism is used for pushing the lining tank to move to the top of each row of sliding supporting bosses along the sliding rails for supporting; and the lining tank is pushed to move to a designed position along each row of sliding supporting bosses. According to the mounting method for the lining tank of the cylindrical cavern energy storage structure, the guide precision of the lining tank during movement can be improved, the situation that the axis of the lining tank deviates too much during long-distance pushing is avoided, and the bottom of the lining tank is prevented from being scratched.

The application discloses a cutting die for expanded polytetrafluoroethylene plate, which comprises a base, a support fixed on the base, a rotating rod penetrating through the support and rotationally connected with the support, the other end of the rotating rod being rotationally connected with the support, a driving mechanism installed on the support and used for driving the rotating rod to rotate intermittently, a through groove arranged at the upper end of the support, a bolt and nut assembly slidably connected in the through groove and capable of being positioned, the bolt and nut assembly being fixedly connected with the upper end of a sliding block, and the rotating rod being sleeved with the sliding block movably connected with the rotating rod. The application can cut the plate at equal intervals without marking the plate by workers, greatly improves the work efficiency, clamps the plate, does not need manual positioning of the plate, increases the stability of the plate, reduces the labor of the workers, and can adjust the position of the cutter to meet the cutting of plates with different lengths and the cutting accuracy.

The utility model relates to the technical field of polyfluortetraethylene plate machining, in particular to a polyfluortetraethylene plate cutting device which comprises a base, a base, a cutting table and an electric saw blade, a servo motor is arranged in the base, the upper end of the servo motor is connected with the base through a rotary disc, the upper end of the base is connected with the cutting table, and the upper end of the cutting table is connected with the electric saw blade. The upper end of the cutting table is fixedly connected with a cutting box body, a lower feeding plate and an upper feeding plate are symmetrically arranged on one side of the cutting box body, and the interior of the cutting box body is of a hollowed-out U-shaped design. According to the device, the servo motor can accurately control the rotating angle of the cutting box body, so that the electric saw blade can cut a polyfluortetraethylene plate at different angles, diversified machining requirements are met, the cutting box body adopts a U-shaped design, a lower feeding plate and an upper feeding plate are symmetrically arranged on the upper portion and the lower portion of the cutting box body respectively, and the feeding plates are connected with a feeding port; and therefore, the polyfluortetraethylene plate can smoothly enter the cutting box body from the feeding hole.

The utility model discloses a constructional engineering heat distribution pipeline mounting structure with an axial thermal expansion compensation function, and solves the problems that the construction period of a heat distribution pipeline and pedestal mounting structure is long, and the thermal expansion and cold contraction adaptability between a pipeline and a pedestal is poor. The mounting structure comprises a concrete cast-in-place forming foundation, a prefabricated pedestal, a polyfluortetraethylene plate, an elastic restraint strap and a heat distribution pipeline, wherein the prefabricated pedestal is arranged on the concrete cast-in-place forming foundation and is in grouting connection with the concrete cast-in-place forming foundation; the prefabricated pedestal is of a cross-shaped structure, and an arc-shaped through groove consistent with the trend of the heat distribution pipeline is formed in a pedestal body. A polyfluortetraethylene plate is fixedly mounted in the arc-shaped channel; the heat distribution pipeline is arranged on the polyfluortetraethylene plate, an elastic restraint strap is arranged above the heat distribution pipeline, and the two ends of the elastic restraint strap are fixed to the prefabricated pedestal. And the sliding friction between the polytetrafluoroethylene material and the heat distribution pipeline shell or between the polytetrafluoroethylene material and the stainless steel plate avoids the damage to the heat distribution pipeline.

The invention discloses a preparation method of a double-layer composite solid electrolyte membrane, which comprises the following steps: step 1, stirring a polymer matrix, a lithium salt, a solid electrolyte and an organic solvent at 60-90 DEG C for 1-12 hours, and uniformly mixing to prepare a solid electrolyte glue solution A; step 2, adding a polymer matrix, a lithium salt and a side chain type polyion liquid into an organic solvent, and stirring at 60-90 DEG C for 1-12 hours to uniformly mix to obtain a solid electrolyte glue solution B; and 3, uniformly coating a polyfluortetraethylene plate with the solid electrolyte glue solution A, putting the polyfluortetraethylene plate into a drying box, drying at 50-120 DEG C for at least 2 hours, taking out the polyfluortetraethylene plate, forming a diaphragm A on the polyfluortetraethylene plate, uniformly coating the diaphragm A with the solid electrolyte glue solution B, putting the polyfluortetraethylene plate into the drying box, drying at 50-120 DEG C for at least 12 hours, taking out the diaphragm, and peeling off the diaphragm to obtain the double-layer composite solid electrolyte membrane. By adopting the AB double-layer diaphragm structure design, the tensile strength of the whole composite solid electrolyte membrane is enhanced, the interfacial compatibility with a positive electrode is effectively improved, and the interfacial impedance is reduced.

The invention aims to provide the fixing device based on long-distance heat distribution pipeline application, the device is simple in structure, low in cost and convenient to construct, and compared with an existing heat distribution pipeline sliding support, the sliding support slides between the stainless steel plate and the polyfluortetraethylene plate, so that the requirement for guiding sliding between heat distribution pipelines is met.

The utility model discloses an aerosol mixing chamber and an aerosol diluting device, the aerosol mixing chamber comprises a cuboid shell, both sides of the cuboid shell are respectively provided with a polyfluortetraethylene plate with an opening, the cuboid shell is also internally provided with a tungsten flow guide cover, and the flow guide cover comprises two symmetrical arc-shaped shielding covers, the outer ends of the two arc-shaped shielding covers are respectively arranged above the openings of the two polyfluortetraethylene plates and are connected with the polyfluortetraethylene plates, and the inner ends of the two arc-shaped shielding covers are respectively connected with the two ends of the connecting cover; and the cuboid shell is connected with the negative pole of the high-voltage power supply. One opening of the aerosol mixing chamber is an air inlet, the other opening of the aerosol mixing chamber is an air outlet, and a servo loop is further arranged between the air outlet and the air inlet. According to the utility model, the flow can be adaptively adjusted by adjusting the servo loop according to the sampling flow and the dilution ratio required by the aerosol analyzing and testing equipment, and uniformly mixed aerosol can be generated.

The invention provides a sliding ship type heavy-load transverse moving system in a cable hoisting system, and belongs to the technical field of bridge construction. The heavy-load transverse moving system comprises a stabilizing structure, a sliding structure and a power structure; the stabilizing structure comprises a tower top cross beam and a wind cable; the sliding structure comprises a slideway, a sliding trolley, a polyfluortetraethylene plate and a limiting pulley; the power structure is arranged to be jack-finish rolling deformed steel bar tensioning equipment. A tower top cross beam and a wind cable are adopted as a load-carrying transverse-moving stabilizing structure, so that the stability of a heavy-load transverse-moving system is effectively guaranteed; paraffin oil is smeared between the sliding way and the sliding rail of the sliding trolley and between the polyfluortetraethylene plate and the stable structure for lubrication, so that stable, constant-speed sliding and flexible sliding of the sliding structure are guaranteed. The cross-core jack and the matched high-pressure oil pump equipment are adopted as a transverse moving traction power structure, so that the sliding structure is effectively ensured to be uniform in speed and smooth without being clamped during transverse moving.