575 results about "Polymer resin" patented technology

A cable trough for installing cables alongside a railway line or other right of way is described. The cable trough is constructed using longitudinally oriented reinforcing fibers coated with polymeric resin that generally aligns the reinforcing fibers with the length of the cable trough. One or more connector clips may be used to secure respective portions of the cable trough to one another. The cable trough is provided with a cover that may be removably secured to an elongate channel to protect the cables housed within the cable trough. Elbows, corners, tees, and other connectors may be provided to run the cable trough in any desired direction. A method of installing cables in a cable trough is also described.

The invention relates to the field of electromagnetic functional composite materials, and particularly discloses a multi-layer composite structure flexible frequency selective surface material and a preparation method thereof. The ultra-high molecular weight polymer fiber-reinforced polymer-based composite material thin-film mechanical enhanced band-pass frequency selection array sequentially comprises an acrylic acid polyvinylidene fluoride organic polymer coating environment-resistant layer, a metal oxide organic film isolation layer, an ultra-high molecular weight polymer fiber-reinforced polymer-based composite material thin-film mechanical enhanced layer, a band-pass frequency selection layer and a packaging protection layer from top to bottom, and the band-pass frequency selection layer is a hexagonal / circular ring nested band-pass frequency selection pattern array. The packaging protection layer is formed by printing a conductive coating composed of conductive filler / polymer resin matrix, and the packaging protection layer is an ink coating. The flexible frequency selective surface material has the characteristics of light weight, high strength, salt fog / rain / ultraviolet and other severe environments, frequency selective wave transmission and multiple functions, has good gas barrier property, is beneficial to maintaining the shape of an inflatable hangar made of a skin and ensuring normal operation of radar equipment, and has good practical engineering application value.

The invention provides coal-based porous carbon for preparing a silicon-carbon negative electrode material as well as a preparation method and application of the coal-based porous carbon, coal-based porous graphite is used as a matrix carbon material, polymer resin is used as a rigid bonding and coating material, heterogeneous elements such as B, N and P are used as doping materials, a carbon nanotube is used as a flexible conductive buffer material, and the materials are dispersed in a solvent to form slurry; through atomization granulation and high-temperature carbonization, heterogeneous element doped resin hard carbon is bridged with carbon nanotubes to construct a three-dimensional rigid-flexible conductive network to cooperatively coat the surface of the porous coal-based graphite, and doped heterogeneous elements are utilized to induce chemical-physical auxiliary activation to perform micro-mesoporous precise regulation and control pore forming on an inner core and a shell. The prepared novel coal-based porous carbon is high in porous framework particle strength and reasonable in pore distribution and has a three-dimensional rigid-flexible conductive network core-shell structure. The invention aims to solve the problems of unreasonable pore distribution of porous carbon, poor matrix strength and the like in the preparation process of a novel vapor deposition silicon-carbon negative electrode material.

Disclosed are a corrosion-resistant film for a magnesium alloy wheel and a preparation method thereof, The corrosion-resistant film for a magnesium alloy wheel includes: a micro-arc oxidation (MAO) coating, a chemically blocked coating, a physical vapor deposition (PVD) high-density inorganic hybrid coating, a high oxidation-resistant powder coating which are sequentially stacked from inside to outside by using the magnesium alloy wheel as a substrate. In the present disclosure, based on a micro-arc oxidation technology, zirconium, titanium, an iron salt, nano silicon, polymer resin are added into an electrolytic solution, and under a constant voltage mode of an adjustable power supply, the MAO coating is generated on the surface of the magnesium alloy wheel, followed by chemical blocking; the PVD high-density inorganic hybrid coating is obtained by coating on the chemically blocked coating, physical blocking is performed; the high oxidation-resistant powder coating is spray-coated on the PVD high-density inorganic hybrid coating.

The invention provides a single-component modified silane adhesive as well as a preparation method and application thereof. The adhesive is prepared by mixing the following components: silane modified polyether resin, silane modified polymer resin, a plasticizer, a composite light stabilizer, a filler, a rheological additive, a water removal agent, a coupling agent and a catalyst, the silane modified polyether resin is silane-terminated resin prepared by a hydrosilylation method; the silane-modified polymer resin is a silane-terminated polymer resin containing a urethane bond. The adhesive is excellent in comprehensive performance, the tensile strength of a body is larger than 3 MPa, the elongation at break is larger than 450%, the adhesive is high in adhesion universality to metal base materials, PET films, ceramics, glass, wood floors, PVC, PC, ABS, wood-plastic composite materials and paint faces, the base materials do not need to be specially treated, the damage form is cohesive failure, and the adhesive has good adhesion strength, tear resistance and excellent temperature resistance and is suitable for being applied to the field of wood products. After aging at 120 DEG C for one week, the tensile strength of the body is greater than 3 MPa, the elongation at break is greater than 430%, and the surface layer can be coated after curing.

The invention discloses a novel automobile back view mirror flexible printed circuit board prepared based on weldable silver paste, and belongs to the technical field of electronic materials and devices, conductor patterns in the flexible printed circuit board comprise a main circuit pattern and an auxiliary function structure formed by weldable low-temperature curing silver paste; the curing temperature of the weldable low-temperature silver paste is 125-135 DEG C, and the weldable low-temperature silver paste comprises conductive filler, a polymer resin system, a high-boiling-point ester solvent, a curing agent, a silane coupling agent, a polyamide wax thixotropic agent, a polysiloxane defoaming agent, modified carbon nanotubes, modified aluminum oxide powder, modified barium sulfate and a low-stress modifier. The polymer resin system comprises novolac epoxy resin, biphenyl epoxy resin and a polyacrylate-CTBN copolymer; through the synergistic effect of all the components and an innovative process, comprehensive improvement of mechanical reliability, environmental durability, conductive stability and power load capacity is achieved, and the strict requirement for high reliability of the automobile rearview mirror in an extreme environment is perfectly met.

The invention discloses a novel notebook flexible printed circuit board prepared based on weldable low-temperature silver paste and a backlight module, and belongs to the technical field of electronic materials and devices. Conductor patterns of the flexible printed circuit board comprise a main circuit pattern formed by rolled copper; the auxiliary function structure is formed in a local area of the main circuit pattern by weldable low-temperature silver paste; the curing temperature of the weldable low-temperature silver paste is 130-145 DEG C, the weldable low-temperature silver paste comprises conductive filler, a polymer resin system, an ester solvent, a curing agent, a silane coupling agent, a polyamide wax thixotropic agent, a polysiloxane defoaming agent, modified carbon nanotubes and modified antimony tin oxide powder, and the conductive filler comprises flaky silver powder, spherical silver powder and low-temperature alloy powder. The low-temperature alloy powder is Sn42Bi58 low-temperature alloy powder of which D50 is 12 [mu] m-15 [mu] m; according to the invention, low-temperature curing, high flexibility, excellent conductivity and direct weldability are integrated, and a solution suitable for local repair of a flexible printed circuit board and direct mounting of a jumper and a Mini LED chip is provided.

A formulation and method for producing a multilayer film and a coated multilayer film comprising a barrier layer including a polar polymer resin, such as EVOH, as described.

A biaxially oriented cavitated PHA-rich composite film comprises a PHA-rich core layer and a first outer skin layer and a second outer skin layer. The core layer comprises a PHA resin at an amount of more than 50 wt % of a total weight of the polymeric resin in the core layer and a modifier X, the modifier X includes PLA resins and PLA copolymers and at least one mineral inorganic cavitating agent; the first outer skin layer comprises a PLA resin at an amount less than 50 wt % of the total weight of the outer layer and biopolymers comprising PHA resins or PBSA resins or PCL resins or mixture thereof. The PHA-rich composite film shows a reduced film density and higher yield as well as low light transmission rate.

The invention belongs to the technical field of high polymer materials, and particularly relates to a composite proton exchange membrane and a preparation method thereof. According to the prepared composite proton exchange membrane, the perfluorosulfonic acid resin capable of being industrially applied is selected as a base membrane material, and the modified polybenzimidazole polymer resin is added, so that the problem of high ion permeation rate of a perfluorosulfonic acid proton exchange membrane in the prior art is solved; interpenetration and permeation of the electrolyte in the use process of the perfluorosulfonic acid proton exchange membrane can be reduced, cross contamination of positive and negative electrolyte is greatly reduced, and the service life of the electrolyte is prolonged. The PBI is functionalized, so that the proton transmission capacity of the PBI is improved, and the proton exchange membrane formed by blending the functionalized PBI and the perfluorinated sulfonic acid resin can keep excellent vanadium resistance, excellent proton transmission capacity and relatively high ion selectivity at the same time. The preparation process is simple, and the prepared proton exchange membrane can meet the performance and long-term stability use requirements of a flow battery.

The invention discloses a biochar marine anticorrosive water-based paint and a preparation method thereof. The paint comprises a component A and a component B, the component A is prepared from the following components in parts by mass: 10 to 40 parts of biochar, 24 to 72 parts of waterborne epoxy resin and 0.1 to 0.4 part of dispersing agent; the component B is prepared from the following components in parts by mass: 6 to 18 parts of a curing agent, 0.15 to 0.6 part of a water-based defoaming agent, 0.25 to 1 part of a thickening agent, 0.1 to 0.4 part of a coupling agent and 0.05 to 0.2 part of a drier. According to the coating disclosed by the invention, the microstructure of the biochar is porous, the water-based polymer resin permeates into the pore structures and is interlocked with the biochar, and fine particles of the biochar fill gaps of the substrate coating and reduce the porosity and cracking possibility of the coating, so that the addition of the biochar is economical and environment-friendly, and the porosity of the coating can be reduced; and the corrosion resistance of the coating is improved.

The present disclosure relates to the formation of thermal protection systems based on the formation of ceramic coatings. Such ceramic coatings may be derived from polymeric resins and may be applied over carbon-carbon (C / C) composites. The ceramic coatings may optionally contain a metal carbide coating.

The invention discloses a wear-resistant coating for an automobile balance shaft gear set and a preparation method thereof, and the wear-resistant coating comprises the following components by weight: 500-2000 parts of an organic solvent, 300-520 parts of polymer resin, 18-126 parts of a lubricating phase, 0-50 parts of a reinforcing phase, 15-60 parts of an auxiliary agent, and 1-4 parts of a pigment filler. The preparation method comprises the following steps: adding the modified lubricating phase into the organic solvent to prepare a mixed solution, adding the mixed solution and other components into a ball milling tank, and carrying out filtering and vacuum defoaming after ball milling to obtain the high-molecular wear-resistant coating. And spraying the wear-resistant coating on the gear, and carrying out third-order curing to obtain a gear product coated with the macromolecular wear-resistant coating. The wear-resistant coating prepared by the invention has excellent wear resistance and damping characteristic, can buffer the impact force of gear transmission, improves the knocking noise problem in the gear operation process, and improves the NVH performance of the whole gear.

The invention relates to the technical field of powder coatings, and provides a preparation method and equipment of a metal-texture colored powder coating, and the method comprises the following steps: carrying out dispersion treatment on flaky aluminum powder through an alcohol solvent, and then adding a silicon source for hydrolysis reaction, so that the surface of the flaky aluminum powder is coated with a silicon dioxide layer; dispersing the flaky aluminum powder coated with the silicon dioxide layer into water, and adding composite metal salt for co-deposition treatment, so that the surface of the flaky aluminum powder is coated with a composite metal oxide layer; and dispersing the flaky aluminum powder coated with the silicon dioxide layer and the composite metal oxide layer into an organic solvent for polymerization reaction, so that the surface of the composite metal oxide layer is coated to form a polymer resin layer, and the modified aluminum pigment is obtained. The composite metal salt is added for co-deposition treatment, so that the surface of the flaky aluminum powder is coated with the composite metal oxide layer, and the color transition effect can be realized and the color richness can be improved by adjusting the proportional gradient change of various metal salts in the composite metal salt.

The application discloses a novel flexible printed circuit board and camera module prepared based on weldable low-temperature silver paste, and belongs to the technical field of electronic materials and devices. The conductor pattern in the flexible printed circuit board comprises a main circuit pattern and an auxiliary function structure formed by weldable low-temperature cured silver paste. The curing temperature of the weldable low-temperature silver paste is 87-103 DEG C. The silver paste comprises conductive fillers, a polymer resin system, ester solvents, a curing agent, a silane coupling agent, polyamide wax thixotropic agents, polysiloxane defoaming agents, modified carbon nanotubes, modified antimony tin oxide powder, modified ceramic fillers and low-stress modifiers. The polymer resin system comprises hydrogenated bisphenol A type epoxy resin, diphenyl type epoxy resin and polyacrylate-CTBN copolymer. The conductive fillers comprise silver-coated copper flaky powder, nano silver wire and low-temperature alloy powder. Through the synergistic effect of components and the innovative process, the comprehensive improvement of mechanical properties, conductive properties, high-frequency characteristics and welding reliability is realized under the premise of ultralow-temperature curing.

A coating composition includes: (a) a polymeric resin including hydroxyl functional groups; (b) a polyisocyanate crosslinker; (c) a thiol including at least 2 active hydrogen groups, where the active hydrogen groups include a thiol group or a combination of a thiol and a hydroxyl group; and (d) a tin-based catalyst. The ratio of the number of moles of thiol to the number of moles of tin in the coating composition is less than or equal to 100:1 and the amount of (d) the tin-based catalyst is less than or equal to 0.25% by weight relative to the total resin solids, and / or the ratio of the number of moles of thiol to the number of moles of tin ranges from 3:1 to 50:1 and the amount of (d) the tin-based catalyst is less than or equal to 0.4% by weight relative to the total resin solids.

A separator and a preparation method therefor, a battery, and an electric device, relating to the field of batteries. The separator comprises a polymer-based film, the polymer-based film has a three-dimensional network pore structure that is formed by interwoven polymer fibers and has pores communicated with each other, and the polymer fibers each contain a porphyrin compound and a polymer resin, wherein the porphyrin compound is dispersed in the polymer resin. The separator has better porosity and ionic conductivity, and during the battery cycling process, the porphyrin compound can coordinate with transition metal dissolved from a positive electrode active material to generate transition metal porphyrin, so that the dissolved transition metal is inhibited or prevented from migrating and depositing onto the surface of a negative electrode sheet to damage an SEI film, thereby improving the cycling capacity retention ratio and the rate capability of batteries.

The present specification provides a polymer resin compound, a method for preparing the same, a photosensitive resin composition including the polymer resin compound, and a photosensitive material formed using the photosensitive resin composition.

The present invention relates to loosening prevention device configured in the following manner: when a bolt unit and a nut unit made of a polymer resin material are coupled to each other to form a thread structure fastening unit, the nut unit having an engaging step receiving unit corresponding to an engaging step of the bolt unit in the thread structure fastening unit slides past an engaging step sliding unit of the bolt unit while rotating in the forward direction; the engaging step remains seated, positioned, and fastened in the engaging step receiving unit; and if an external force having a predetermined magnitude is applied in the reverse rotation direction, an engaging step receiving unit resistance surface of the nut unit moves past an engaging step resistance surface of the bolt unit, thereby unfastening the thread structure fastening unit.

The invention relates to automobile film surface protection, and provides a scratch-resistant coating composition and a preparation method thereof. The composition is prepared from polymer resin containing an acrylate group, polysiloxane acrylate containing a hydrolyzable alkoxy silicon group, composite silane modified double-particle-size nano silicon dioxide, a photoinitiator, an organic silicon cross-linking agent and an auxiliary agent, wherein the nano silicon dioxide is composed of a small-particle-size group and a large-particle-size group; and gamma-methylacryloyloxypropyl silane and gamma-glycidoxypropyl silane are respectively grafted to the two monomers. A micro-thin transparent hard coating is formed on the surface of a polyester base material through staged ultraviolet curing and damp-heat curing, so that the coating has high surface hardness and abrasion resistance and excellent damp-heat aging adhesive force and whitening resistance while keeping high light transmittance and low haze.

The present invention provides a polymer that has high dispersibility of fluororesin particles and excellent solubility in fluorine-based solvents, and further has a perfluoroalkyl group having less than 6 carbon atoms, which imposes little burden on the environment and living organisms. The polymer contains at least two structural units of first to third monomer units, or is composed solely of the second monomer unit. The first to third monomer units are represented by formulas (1) to (3), respectively. CH2=CR 1 -COO-Q 1 -Rf 1 (1) R 1 :H or methyl, Rf 1 : C1-4 polyfluoroalkyl group, Q 1 :Single bond, etc. CH2=CR 2 -COO-R 3 -Q 2 -Rf 2 (2) R 2 :H or methyl, R 3 : C1-6 alkylene group, Rf 2 : C5-20 perfluoropolyether group, Q 2 : Single bond or -NH-COO-Q 21 - and Q 21 is a single bond, etc. CH2=CR 4 -COO-Q 3 -R 5 (3) R 4 :H or methyl, R 5 : C12 to C40 alkyl group, Q 3 :Single bond, etc.

The present invention relates to an all-solid-state battery and a method for manufacturing same and, more specifically, to an all-solid-state battery comprising: an electrode assembly in which at least one unit cell is stacked; and a pouch for packaging the electrode assembly. The unit cell includes a positive electrode, a negative electrode, and a solid electrolyte between the positive electrode and the negative electrode, and the pouch includes an insulating layer and a metal layer on the insulating layer, the insulating layer containing a polymer resin and a heat absorbing material dispersed in the polymer resin, wherein the endothermic initiation temperature of the heat absorbing material is 170°C to 300°C.

The invention discloses a fixed bed residual oil hydrodesulfurization catalyst carrier as well as a preparation method and application thereof, and belongs to the technical field of catalysts. According to the method, the water retention function of wet balls is improved by adding silochrom, so that the surfaces of extruded strips are dry and comfortable, and adhesion among particles is reduced; viscosity slow-release cellulose is combined, so that the viscosity of the kneaded material is further reduced, and the efficiency of the pelletizing process is improved; the water-soluble thermocuring polymer resin is added, so that the extrusion resistance of the wet bulb is improved, and the pore structure is improved; after the treatment, the strip-shaped surface extruded by the strip extruder is dry and comfortable, the viscidity is moderate, and the production continuity and efficiency of the pelletizing device are improved. After the carrier is prepared into a tooth spherical carrier, the tooth spherical carrier can be directly used as a hydrodesulfurization catalyst to be filled below the tangent line of a reactor, and can cope with larger raw material treatment load, slow down the rise of bed pressure drop and prolong the running time of a device.

The utility model discloses a kind of non-contact optical coherence elastic imaging endoscope devices, comprising: non-contact ultrasonic excitation and optical detection integrated probe and high-speed sweep frequency laser, the integrated probe includes air-coupled ultrasonic transducer, collimating optical fiber, off-axis parabolic mirror and polymer resin packaging shell, air-coupled ultrasonic transducer diameter is not greater than 2.5 mm, center frequency is not less than 250 kHz, collimating optical fiber is single-mode fiber and emission end integrated collimator is used to produce collimating beam, off-axis parabolic mirror focal length is greater than 7 mm, the polymer resin packaging shell is used to integrally package integrated probe, the polymer resin packaging shell is designed using 3D printing, and it is windowed at the exit end of the off-axis parabolic mirror;The scanning speed of this high-speed sweep frequency laser is 100 kHz, center wavelength 1310 nm, bandwidth 100 nm, synchronous output trigger clock and sampling clock.

The present invention relates to a composition for a ball-type cosmetic container and a ball-type cosmetic container manufactured using same. The composition for a ball-type cosmetic container is characterized by comprising: a ball-type outer skin part forming a hollow sealed space for filling with a filler; and a discharge port for discharging the filler to a portion of the ball-type outer skin part. The outer skin part includes: an ethylene-based polymer resin; a rubber-based plastic resin; a bio-based polyethylene resin; and a polishing agent. According to the present invention, it is possible to provide a cosmetic container which can provide a beautiful appearance due to having excellent gloss, has excellent elasticity, thus ensuring dischargeability of the contents, and can reduce carbon dioxide and be recycled, thus being eco-friendly.

The invention discloses a high-elongation dielectric composition, a preparation method and an application method thereof, and a substrate. The dielectric composition with high elongation rate comprises high-molecular resin and inorganic filler, wherein the polymer resin comprises bonding resin, and the bonding resin comprises epoxy resin and phenolic resin; the structural resin is selected from at least one of a polymer with a main chain containing an aromatic ring and / or a heterocyclic ring and a rubber polymer; the dielectric constant of the inorganic filler is not less than 2000 in the frequency range of 1kHz to 1GHz. Through a specific synergistic resin system, the high dielectric constant and the high elongation rate are achieved at the same time, the excellent melt viscosity, the excellent heat resistance, the low thermal expansion coefficient and the low hygroscopicity are achieved, and the defects of layering and plate explosion caused by poor fluidity, poor mechanical performance and mismatching of thermal stress in the manufacturing process of an existing high-Dk material are overcome.

The transfer release film according to the present invention includes a substrate, a release layer formed by coating one surface of the substrate with a release composition containing an ion-conductive polymer resin and a solvent, and a lithium vapor-deposited layer formed by vapor deposition on the upper surface of the release layer. In the transfer release film according to the present invention having such a configuration, the release layer detaches from the substrate and is transferred to the electrode together with the lithium vapor-deposited layer, thereby jointly performing the role of a protective layer for the lithium vapor-deposited layer.

The present invention relates to an electrochemical device comprising a separator and an electrolyte composition, characterized in that said separator comprises at least one coating comprising a polymer resin comprising monomer units of vinylidene fluoride and monomer units of formula R1R2C═C(R3)C(O)R wherein the substituents R1, R2 and R3 are selected, independently of one another, from the group consisting of H and C1-C5 alkyl; R is selected from the group consisting of —NHC(CH3)2CH2C(O)CH3 or —OR′ with R′ selected from the group consisting of H and C1-C1 alkyl optionally substituted with one or more —OH groups or a five- or six-membered heterocycle comprising at least one nitrogen atom in its cyclic chain, and said electrolyte composition comprises a solvent and a lithium salt; said electrolyte composition having a viscosity greater than 2 cP measured at 20° C. and with a shear of 20 s−1 or said solvent having a dipole moment greater than 2 Debye at 25° C.

Golf ball comprising a layer formed from a vanadium dioxide nano-particle composition; wherein the vanadium dioxide nano-particle composition comprises a polymer composition and one of a plurality of vanadium dioxide composite nano-particles, a vanadium dioxide composite nano-particle slurry, or a mixture of a polymer emulsion and the vanadium dioxide composite nano-particle slurry. Non-limiting examples of suitable polymer compositions include latexes, lacquers, enamels, acrylics, an epoxies, polyesters, urethane acrylates, polyester acrylates, alkyds, thermoset polyurethane compositions, thermoplastic polyurethane compositions, and / or ionomer compositions. The vanadium dioxide composite nano-particle slurry may be formed from a plurality of vanadium dioxide composite nano-particles that are dispersed throughout a dispersion medium. The polymer emulsion may comprise an aqueous dispersion or an emulsion of polymer resin.

The invention belongs to the technical field of electronic paste, and particularly relates to silver-nickel paste for a radio frequency identification antenna and a preparation method of the silver-nickel paste. The silver-nickel paste comprises the following components in percentage by mass: 50-60% of conductive metal powder, 5-20% of polymer resin and a solvent, the conductive metal powder comprises first-stage powder, second-stage powder and third-stage powder, the particle size D50 of the first-stage powder, the particle size D50 of the second-stage powder and the particle size D50 of the third-stage powder are decreased step by step, the first-stage powder is nickel powder, and the second-stage powder and the third-stage powder are silver powder; the conductive metal powder comprises nickel powder and silver powder; the macromolecular resin comprises vinyl chloride-vinyl acetate resin and polyester resin; the solvent is dibasic acid ester. The silver-nickel paste capable of replacing pure silver conductive paste is firstly provided, on one hand, the material cost of the radio frequency identification antenna printing paste is reduced, and on the other hand, the particle size design and metal model selection are combined to optimize the conductive performance after nickel replacement.