267 results about "Polymer substrate" patented technology

The invention discloses a micro-through-hole structure polymer metallization method for guided wave transmission, and belongs to the technical field of photoelectric device processing, a polymer substrate is used for replacing a traditional all-metal material, and the micro-through-hole structure polymer metallization method for guided wave transmission is achieved through the multi-stage processes of plasma activation, chemical coarsening, sensitization, chemical plating, electroplating and the like. And forming a compact and high-adhesion metal layer on the inner surface of the through hole of the polymer substrate. In the process, a microfluid pump or a peristaltic pump is adopted to drive the solution to circularly flow in the through hole and the microcavity. According to the micro-through-hole structure polymer metallization method for guided wave transmission, dynamic flowing of a chemical plating solution in a micro-through hole and an internal cavity is achieved by introducing a micro-fluid pump or a peristaltic pump, and therefore a uniform, compact and firmly-attached metal layer is obtained.

Increasingly, plastics made from fossil raw materials such as petroleum or natural gas are being supplemented or replaced by plastics based on renewable raw materials obtained through biochemical processes. The question of sustainability then also arises for the plastic additives used for these plastics (and for plastics made from fossil raw materials). Therefore, there is a need for plastic additives based on renewable and readily available raw materials that are highly effective, low volatility, and compatible with polymeric substrates.

This relates to assembling individual components on a circuit board. [Solution] The system comprises a vacuum chuck and a tape. The tape comprises a flexible polymer substrate and an adhesive die-capturing film positioned on the flexible polymer substrate facing the front of the flexible polymer substrate. The tape is held in the vacuum chuck by suction applied to the rear surface of the flexible polymer substrate.

An electrochemical device separator of the present invention comprises: a porous polymer substrate; and a coating layer which is provided on at least one surface of the porous polymer substrate and which includes inorganic particles, a polymer binder and a dispersant. The coating layer is formed of a coating layer composition, wherein the coating layer composition includes inorganic particles, a polymer binder and a dispersant, the dispersant including a maleic acid monomer.

The application belongs to the field of catalyst synthesis, and relates to a polymer polynuclear boron organic catalyst, a preparation method and application thereof, the preparation method of the catalyst comprises the following steps: adding tetrahydrofuran into a catalyst precursor, then adding a borohydride reagent drop by drop, heating the reaction mixture at 25-80 DEG C for 22-26 h, vacuum concentrating the reaction mixture to obtain a crude product, purifying the crude product by washing with pentane for 2-5 times, and vacuum drying the product at normal temperature for 10-14 h to obtain the catalyst; the catalyst precursor and a preparation method thereof are also provided; the polymer polynuclear boron organic catalyst provided by the application has the advantages of high activity, simple preparation method and low cost, and the catalyst can control the polymer substrate type and the polymer type by adjusting the reaction conditions, the catalytic system and the substrate, and can efficiently prepare polymers such as polyether, polyester and polycarbonate due to the synergistic effect of the polynuclear boron center, so that the types of the organic catalyst and the polymer are greatly expanded.

An apparatus, such as an electronic device, may have a polymer substrate or layer, and a coating on the polymer substrate / layer. The coating may include an interfacial layer and a ceramic multilayer hard coat on the interfacial layer. The interfacial layer may be a non-nitride material, such as an oxide material, that is applied to the polymer substrate / layer. The ceramic multi-layer hard coat may be sputtered onto the interfacial layer and may include alternating nitride layers (e.g., oxynitride layers) with tensile stress and compressive stress. The presence of the interfacial layer may protect the polymer substrate / layer from damage during the sputtering of the ceramic multilayer hard coat.

The application discloses a method for directly preparing a nuclear micropore membrane with regularly arranged nuclear micropores based on a large-area AAO transmission film, and belongs to the technical field of nuclear micropore membrane preparation. The method comprises the following steps: taking a large-area through-hole anodic aluminum oxide (AAO) film as an ion transmission template, closely adhering the AAO film to a polymer substrate, and performing one-time vertical high-energy particle irradiation; particles penetrate along the regular channels of the AAO and form a large-area regular irradiation damage array on the substrate, which corresponds to the template; and through sensitization, chemical etching and post-processing, a nuclear micropore membrane with consistent nuclear micropore distances and regular arrangement is directly obtained. The method omits the traditional multiplication, alignment and multiple irradiation steps, is simple in process, high in product yield, and capable of large-area mass production, and is high in regularity of the nuclear micropore array, adjustable in parameters, and significantly improves the application performance of the nuclear micropore membrane in high-end fields such as radiation detection, wave absorption and high-precision separation.

The utility model is designed for the rapid (up to 20 minutes) detection of at least 10 types of analytes in environmental samples (water, air, soil, etc.) and clinical specimens. The immunochromatographic test strip for multiplex analysis includes a polymer substrate with an applied immunochromatographic membrane and a capture pad. The test and control zones of the test strip are designed as two rows of transverse microstrips occupying no more than half the width of the test strip. The test strip includes a marker for coordinating the cutting of test strips. The technical result consists in reducing the time for recording the luminescent signal from test strips in an automated system. 3 c.p. phyl., 3 fig., 2 tables.

The application discloses a flexible terahertz metamaterial sensor and a preparation method thereof, which comprises, from top to bottom, a reinforcing layer, a carbon nanotube film layer and a polymer substrate layer; the reinforcing layer is composed of a graphene and zinc oxide composite material; the reinforcing layer and the carbon nanotube film layer are consistent in shape and are both periodic strip structures. The super material sensor is based on the synergistic effect of a ternary system of zinc oxide / graphene / carbon nanotube, wherein zinc oxide nanoparticles grow directionally on a graphene sheet through a Zn-O-C bond, and a carbon nanotube film constructs a three-dimensional conductive network, thus solving the dielectric loss problem of a traditional noble metal-based sensor structure. The phonon resonance characteristics of zinc oxide are coupled with graphene plasmons, a high-efficiency charge transfer channel is formed at a heterojunction interface, and the conductivity and terahertz transmission efficiency are improved.

This invention provides a fast-response hydrogen-sensitive color-changing tape, its preparation method, and its application. The raw materials for preparing the fast-response hydrogen-sensitive color-changing tape, by weight, include the following components: 15-30 parts modified porous polymer substrate, 5-12 parts modified tungsten-based color-changing material, 1-3 parts modified non-precious metal catalytic material, 1-2 parts adhesive additive, 2-6 parts transparent elastic encapsulating resin, and 0.3-0.5 parts stabilizer. The fast-response hydrogen-sensitive color-changing tape provided by this invention not only has a short hydrogen response time and recovery time but also high peel strength.

The invention relates to a foam metal growing on a polymer substrate and a preparation method thereof. Comprising the following steps: 1) a base material preparation stage: mixing a polymer combination and / or an auxiliary agent to obtain a base material; 2) a metal growth stage: performing pretreatment on the surface of the base material obtained in the step 1), and then growing metal in pores of the base material through chemical plating or water electroplating to obtain a polymer base material; (3) a base material dissolving stage: dissolving the polymer base material deposited with the metal obtained in the step (2) to obtain foam metal without the polymer base material; and 4) a post-treatment stage: carrying out anti-oxidation and drying treatment on the foam metal without the polymer base material obtained in the step 3) to obtain the foam metal. According to the preparation method, the high-porosity polymer base material is introduced, so that the metal uniformly grows in pores in the high-porosity polymer base material, and finally, the polymer base material is completely removed to obtain the foam metal.

The invention provides a low-temperature plasma spraying method for a heat-sensitive polymer matrix and a composite material, and belongs to the technical field of surface engineering. According to the method, through a system process of matrix surface pretreatment, spraying powder drying and low-temperature plasma spraying, the core is that a matrix active cooling technology is adopted in the range of 0-10 DEG C to isolate the plasma arc heat influence, and optimized sand blasting coarsening, powder granularity control and spraying process parameters are matched; and the compact Al2O3-TiO2 ceramic coating with high bonding strength is successfully prepared on a heat-sensitive epoxy resin matrix. The limitation that a traditional thermal spraying technology cannot be used for high polymer materials is broken through, the technological process is simple, the cost is low, and the obtained coating is excellent in abrasion resistance and suitable for meeting the requirement for high performance of the surface of the light high polymer material in the fields of electronic equipment, aerospace and the like.

Formulations of each group of graphene, graphene carbon, metal and dielectric ink compatible with each other for making high performance film touch switches (MTSs) are disclosed. The components of these inks are optimized to achieve a higher degree of compatibility with highly engineered polymer substrates, providing an overall solution for manufacturing high performance MTS. These material sets may also be used to fabricate sensors, biosensors, and RFID on flexible substrates such as polymers and paper.

The application discloses a kind of based on enhanced raman's trace furfural in oil ultrafast detection method and system, the method includes: preparation regular arrangement metal nanometer finger array on flexible polymer substrate;After depositing dielectric film on the surface of metal nanometer finger, introduce removable sacrificial layer, under the condition with temperature gradient, volatile solvent is applied, adjacent metal nanometer finger gradually approaches contact, metal-dielectric-metal gap structure is formed, so that the enhanced substrate of hotspot uniform distribution is obtained;Transformer oil sample is directly dropped on the surface of the enhanced substrate;Using Raman spectrum system, enhanced raman signal of furfural molecule in the oil sample is collected under laser excitation;According to the enhanced raman signal, the characteristic peak of furfural in transformer oil is identified.The application can realize in-situ, high-sensitivity, rapid, non-destructive detection of trace furfural in transformer oil without extraction and adsorption.

The present disclosure provides a stretchable article. The stretchable article includes a polymeric substrate configured to have a planar unstretched state and a non-planar deformed stretched state. When the polymeric substrate is in the planar unstretched state the polymeric substrate includes a sheet having a first major surface; a second major surface opposite the first major surface; and a plurality of slits that each extend from the first major surface to the second major surface. The plurality of slits are arranged in a Kirigami pattern, which includes at least one feature that is smaller than 500 micrometers. Additionally, a method is provided, including forming a plurality of slits in a polymeric substrate using a microstructured cutting tool.

The invention discloses a secondary battery, a battery pack and electric equipment, and belongs to the technical field of batteries. The secondary battery comprises at least one battery cell, the at least one battery cell comprises a positive pole piece, a negative pole piece and a diaphragm arranged between the positive pole piece and the negative pole piece, at least one of the positive pole piece and the negative pole piece comprises a composite current collector, and the composite current collector comprises a polymer base material layer and a conductive layer, the polymer base material layer comprises a polymer base material and a thermal decomposition additive, the thermal decomposition additive generates gas when reaching a decomposition temperature, and the conductive layer is arranged on the polymer base material layer. According to the present invention, the thermal decomposition additive is introduced into the composite current collector, such that the gas can be generated when the battery is locally overheated, the high pressure can be formed in the composite current collector, the composite current collector is caused to swell and even fracture, the short circuit or the open circuit can be formed in the cell, the thermal runaway occurrence possibility is reduced, and the safety of the secondary battery is improved.

The invention discloses a total heat exchange membrane and a preparation method thereof, the total heat exchange membrane comprises: a compact layer, the compact layer comprises a hydrophilic polymer substrate and an MXene functional filler, the hydrophilic polymer substrate comprises one or more of polyvinyl alcohol, polyvinylpyrrolidone, polyurethane and polyacrylic resin; the MXene functional filler is an MXene material subjected to antibacterial modification treatment; the porous support layer is coated with the compact layer, and the porous support layer is prepared from a polymer membrane material subjected to hydrophobic modification treatment. The total heat exchange membrane comprises a compact layer and a porous supporting layer, and the compact layer comprises a hydrophilic polymer base material and antibacterial modified MXene functional filler, so that high moisture permeability and antibacterial property of the total heat exchange membrane can be realized; the porous supporting layer is prepared from a polymer film subjected to hydrophobic modification treatment, has hydrophobicity, reduces adhesion of water molecules, and can reduce mass transfer resistance.

To provide an optical product including an anti-fog coating film having excellent anti-fog durability. An optical product including a transparent material and an anti-fog coating film disposed on a surface of the transparent material, in which the anti-fog coating film is obtained by drying and / or curing a coating film formed from an anti-fog coating composition, the anti-fog coating composition contains a polymer (A), a substrate component (B), and a surfactant (C), the polymer (A) includes a constituent unit derived from a compound (a) having an ethylenically unsaturated group and an ionic group, a constituent unit derived from a compound (b) having an ethylenically unsaturated group and an —OH group and / or an —NH2 group, and a constituent unit derived from a compound (c) represented by the following formula (c-1), and has a structure derived from a compound (d) having a thiol group and a hydrocarbon group having 4 or more carbon atoms at least at one terminal of a main chain.

This application provides a flexible transparent semiconductor display thin film material and its preparation method. The material forms a multi-level stacked transparent semiconductor functional layer on a flexible transparent polymer substrate, consisting of alternating high-mobility sublayers and high-stability sublayers with an adjustable thickness ratio, balancing electron mobility and stability. Interface nano-modification layers are respectively set between the semiconductor functional layer, the conductive layer, and the substrate to improve interface adhesion and electronic conductivity. The transparent conductive layer adopts a multi-layer composite structure, including a transparent conductive sublayer and a metal nanolayer, improving conductivity and lifespan. Through structural optimization and interface engineering, this application significantly improves the electronic properties, environmental stability, and flexibility of the flexible thin film while maintaining high transparency, solving the problem of balancing high mobility and high stability in existing technologies. It is applicable to flexible displays, touch screens, and transparent optoelectronic devices.

The invention relates to the technical field of electrochemical sensing, in particular to a multi-channel electrochemical aptamer sensor and a preparation method and application thereof.The multi-channel electrochemical aptamer sensor adopts a commercial silk-screen printing electrode and is combined with a polymer substrate material for amplifying electrochemical signals, and the electrochemical aptamer sensor is prepared. According to the present invention, the corresponding aptamer is fixed by using the gold nanoparticle through the chemical bond so as to specifically detect the three hemorrhage conversion biomarkers after acute cerebral infarction, such as human matrix metalloproteinase (MMP-9), fibrinogen (FN) and plasminogen activation inhibitor (PAI-1); wherein the FN and the PAI-1 are detected through an electrochemical aptamer sensor method for the first time, and simultaneous detection of the three biomarkers is realized through integration with commercial multi-channel micro electrochemical equipment.

The invention relates to a novel multi-line-width and multi-opening screen printing plate structure and a processing technology thereof.The novel multi-line-width and multi-opening screen printing plate structure comprises a screen printing plate body and a multifunctional coating, the screen printing plate body comprises an ink storage groove layer, a base material structure layer and an opening layer which are sequentially arranged, and the multifunctional coating is formed by coating the surface of the screen printing plate body with multifunctional paint; the multifunctional coating comprises the following components in parts by mass: 90-110 parts of a porous polymer substrate, 10-12 parts of a quaternary ammonium salt ionic polymer, 14-18 parts of organic modified filler, 2-4 parts of a dispersing agent and 1-3 parts of a flatting agent, the porous polymer substrate is prepared from the following raw materials: polydimethylsiloxane, polymethyl methacrylate, epoxy resin and gamma-aminopropyltriethoxysilane. The screen printing plate has the effect of improving the ink outlet fluency of the screen printing plate.

An electrode assembly includes an electrode having a laminated foil disposed between a first active material layer and a second active material layer, where the laminated foil includes a polymer substrate disposed between a first laminate layer and a second laminate layer. The electrode assembly also includes a plurality of perforations extending through the first active material layer, the second active material layer, and the laminated foil.

This application discloses a current collector and a method for preparing a current collector. The method includes: metallizing a conductive layer on the surface of a release substrate to obtain a first structure; depositing an adhesive layer on the surface of a polymer substrate layer; attaching the conductive layer of the first structure to the surface of the adhesive layer away from the polymer substrate layer to obtain a second structure; and peeling off the release substrate of the second structure to obtain the current collector. The current collector and the method for preparing the current collector according to this application can improve the processing efficiency and reliability of the current collector.

The separator for an electrochemical device according to an embodiment of the present invention comprises: a porous polymer substrate; and a coating layer disposed on at least one surface of the porous polymer substrate and including a polymer binder and inorganic particles, wherein the porosity of the porous polymer substrate is approximately 50-65%, inclusive.

A film comprises an elastomeric or soft polymer substrate that is capable of converting light to heat a second layer comprising a hydrophilic polymer and nanosheets of layered inorganic material dispersed in the hydrophilic polymer. The substrate can comprise a photothermal particle. The film can be used in a method by irradiating the film to cause wrinkles and optionally further exposing the film to moisture with optional drying.

The present disclosure provides a separator for a lithium secondary battery, including a porous polymer substrate; at least one inorganic coating layer present on at least one surface of the porous polymer substrate, the inorganic coating layer including inorganic particles and a first particulate binder polymer; and at least one adhesive layer present on at least one surface of the inorganic coating layer, the adhesive layer including a second particulate binder polymer and a non-particulate binder precursor, wherein the non-particulate binder precursor includes an acrylic monomer or oligomer.

According to one aspect of the present invention, a thin film separator with improved insulation properties and a preparation method thereof are provided. According to one aspect of the present invention, the separator can have an advantage of implementing a dielectric breakdown voltage of 1,000 V or less while having a thickness of 8 μm or less. To this end, according to one aspect of the present invention, the separator having a controlled maximum pore size within a polymer substrate and a preparation method thereof are provided.

The present application relates to the technical fields of flexible electronic device processing, and provides a transparent flexible electrode and a preparation method thereof, the transparent flexible electrode comprising: a polymer substrate composed of a transparent flexible polymer material; a first aluminum-doped zinc oxide particle layer, which is coated on the polymer substrate and used to enhance the adhesion of a silver nanowire network layer to the polymer substrate; the silver nanowire network layer, which is coated on the first aluminum-doped zinc oxide particle layer and used to realize the conductivity of the electrode; and a second aluminum-doped zinc oxide particle layer, which is coated on the silver nanowire network layer and used to enhance the mechanical properties of the silver nanowire network layer. The method realizes the preparation of the transparent flexible electrode with high conductivity, high light transmittance and high stability at low cost.

The application provides a composite current collector, which comprises a polymer substrate and a first conductive layer arranged on one side surface of the polymer substrate or a first conductive layer and a second conductive layer arranged on opposite side surfaces of the polymer substrate, wherein the polymer substrate has an elongation σ and a thickness D2, the first conductive layer has a thickness D1 1 , the second conductive layer has a thickness D1 2 , and the defined parameters are β1 = (0.03×D1 1 ) / (σ×D2) and β2 = (0.03×D1 2 ) / (σ×D2), and β1 and β2 are both in the range of 0.01-0.3. The adhesion of the conductive layer to the polymer substrate is strong, the structural stability of the composite current collector is high, the lithium ion battery electrode sheet and the battery prepared from the composite current collector can effectively improve the safety performance and the energy density of the battery. The application further provides a preparation method of the composite current collector and a battery electrode sheet, a battery and a terminal using the composite current collector.

The invention relates to the field of wound nursing materials, and discloses a dressing pharmaceutical composition for wound nursing as well as a preparation method and application thereof. The dressing is composed of a polymer substrate layer and an active medicine layer, and is integrally prepared through an electrostatic spinning or spray deposition technology. The polymer substrate layer comprises a hydrophilic film-forming component and a hydrophobic film-forming component, the hydrophilic film-forming component comprises a cross-linking agent and a gold-based nano enzyme, and the active drug layer comprises an alkenyl compound. According to the dressing pharmaceutical composition, through the synergistic effect of the polymer substrate layer and the active medicine layer, a functional barrier is formed on a wound surface, through the synergistic effect of active ingredients, the physical blocking and removing effects are achieved, bacterial infection is effectively inhibited, pathological products are removed, and therefore wound surface healing is promoted.