97 results about "Polymer substrate" patented technology

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.

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 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.

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.

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.

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.

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 application discloses a preparation method of a marine conductivity sensor electrode and the electrode, and relates to the field of sensing electrode manufacturing. The preparation method of the marine conductivity sensor electrode comprises polymer substrate carbonization treatment and carbonized substrate graphitization treatment. The preparation method of the marine conductivity sensor electrode realizes dense forming of the polymer substrate and ordered gradient conversion of the carbon structure, and is free of a mask and chemical reagent residues. The prepared electrode has high density, excellent conductive stability, outstanding seawater corrosion resistance, controllable size precision and weak polarization effect, and is suitable for the miniaturization, long-termization and high-precision marine conductivity monitoring requirements.

The application discloses a pressure-responsive high-conjugated covalent organic framework self-lubricating nanosheet and application thereof, and belongs to the technical field of high-end equipment lubricating materials. The preparation method of the self-lubricating nanosheet is as follows: S1, dispersing 1,3,5-tri(4-aminophenyl)benzene and 2,5-dimethoxy-p-phenylenedimethanal in 1,4-dioxane to obtain a precursor solution; S2, adding glacial acetic acid into the precursor solution, heating to 70-90 DEG C, and then keeping the temperature constant for 1-2 hours, and then heating to 120-140 DEG C, and keeping the temperature constant for 12-24 hours to obtain an orange product; the orange product is a high-conjugated covalent organic framework self-lubricating nanosheet (TADM); S3, mixing the TADM with lubricating oil and vacuum impregnating to form TADM@oil nanosheets. The TADM@oil nanosheets are dispersed in a polymer matrix to obtain a polymer composite material; and the polymer composite material is coated on a metal substrate to form a self-lubricating coating. The coating has the functions of solid lubrication and pressure-responsive intelligent release of lubricating oil, and the stability and service life of the lubricating system are improved.

Disclosed herein is a multilayer barrier film coated polymeric substrate, the multilayer barrier film at least including a radiation-cured interlayer on top of the polymeric substrate, and one or more at least partially inorganic barrier layers on top of the interlayer, the interlayer being formed upon application and radiation-curing of a radiation-curable interlayer coating material on the polymeric substrate, where the radiation-curable interlayer coating material possesses a hydroxyl number in a range from 50 to 250 mg KOH / g. Further disclosed herein are a method for producing such multilayer barrier film coated polymeric substrate and a method of using the same.

The application discloses a kind of high sensitivity, wide response range flexible stress / strain sensor and preparation method thereof, belong to sensor field, obtain flexible stress / strain sensor with ultrahigh sensitivity, ultra-low detection limit, wide tensile range, fast response time and ultrahigh stability.The flexible stress / strain sensor of the application is sequentially from bottom to top stretchable polymer substrate with screen structure, metal film, metal nanoparticle carbon nanotube composite layer, metal film, polymer protective film;Sensor functional layer is metal film / metal nanoparticle carbon nanotube composite layer / metal film, obtain super-wide range (strain 0.02%~90%) and ultrahigh sensitivity (the highest GF value is 13590), fast response speed (~100ms) and excellent cycle stability (≥18000 times).And applied in human motion detection, human pulse monitoring and sound detection and other scenes, obtain good effect.

A coating primarily including water, pigment and binder typically used for ceiling tile including a percentage of wetting agent effective when coated and dried on fleece or soft polymer substrate to increase the sound absorption coefficient of the fleece or soft polymer cloth substrate on top of a base board or ceiling tile.

This invention discloses a filter coating composition for fluorescence detection and its preparation method, relating to the fields of optical materials and biodetection technology. The composition is formulated by compounding optical functional powders, polymer substrates, dispersants, and additives in specific proportions, exhibiting high transmittance, narrow wavelength selectivity, excellent weather resistance and mechanical stability. It can accurately filter excitation light and stray light, improving the sensitivity and specificity of fluorescence detection. The filter coating composition and its preparation method for fluorescence detection also provide a simple, cost-effective manufacturing process suitable for large-scale production, particularly applicable to gene sequencing and immunochemistry. It addresses the problems of poor wavelength selectivity, weak stability, and high cost associated with traditional filters, making it suitable for fluorescence detection scenarios such as Alzheimer's disease biomarkers. Balancing accuracy, stability, and economy, it has broad application prospects in the field of in vitro diagnostic reagents.

A flexible thin-film device (10) comprising: - a flexible polymer substrate (5) comprising a corrugated surface structure (8), the corrugated surface structure (8) comprising a wave pattern, the wave being one or more curved lines and / or one or more straight lines; - one or more functional layers (7) located on the corrugated surface structure (8), the one or more functional layers (7) defining an upper surface (9) opposite the corrugated surface structure (8); and - a stress distribution layer (6) located on the upper surface (9), the stress distribution layer (6) comprising a flexible polymer layer.

This invention discloses a polyurethane acrylate-based highly conductive stretchable metal electrode and its preparation method. The stretchable electrode comprises a flexible polymer substrate and a metal thin film layer disposed thereon. The flexible polymer substrate is formed by blending polyurethane acrylate prepolymer, rigid functional monomers, and flexible functional monomers in a specific volume ratio and then curing them under ultraviolet light, exhibiting high Young's modulus, high strain energy density, and high elongation at break. The preparation method of this invention includes preparing a metal thin film on a rigid substrate, spin-coating the above-mentioned blended polymer solution and curing it, and finally peeling off to obtain the electrode. This invention alleviates modulus mismatch and inhibits crack propagation through synergistic regulation of the substrate's mechanical properties, and enhances interfacial bonding through mechanical interlocking and chemical coordination between the substrate and the metal layer, enabling the electrode to maintain high conductivity and structural integrity under large tensile strain. This method is simple, low-cost, and suitable for wearable electronics and biomedical sensing fields.

A mixture can be used for modifying the rheology of polymeric substrates. The mixture contains a hydroxylamine ester and an isocyanate functionalized with a thio compound.

The present disclosure provides a separator for a lithium secondary battery, including a porous polymer substrate; and an inorganic coating layer present on at least one surface of the porous polymer substrate, the inorganic coating layer including core-shell composite particle precursors, wherein the core-shell composite particle precursors include a core portion and a shell portion covering at least a part of a surface of the core portion, wherein the core portion includes inorganic particles, and wherein the shell portion includes an acrylic monomer or oligomer.

An easy-to-handle ready mix of a polymer preparation, such as for producing porous or microporous structures, is presented, comprising a polymer substrate and a diluent, wherein the components of the polymer preparation intermesh in a delivery state of the ready mix in such a way that they are inseparably bonded to one another.

This invention relates to a photoinduced ultrasonic transducer based on liquid metal nanoparticles and its fabrication method. The photoinduced ultrasonic transducer includes a composite thin film layer, or a composite thin film layer and a substrate stacked together. The composite thin film layer is formed by dispersing liquid metal nanoparticles in a polymer. The polymer is formed by curing a polymer substrate precursor solution. The mass ratio of liquid metal nanoparticles to polymer substrate precursor solution is (0.2-0.4):1. This invention uses liquid metal nanoparticles as the basic component for light absorption and heat generation, and uses a polymer as the substrate, which is easily expanded by heat. Using liquid metal as the raw material can avoid unfavorable internal stress concentration. The photoinduced ultrasonic transducer of this invention has good flexibility, high photothermal conversion efficiency, high damage threshold, can excite high sound pressure, and can fully recover after the process, making the device highly durable and extending its service life. The overall fabrication process is simple.

The present disclosure relates to a separator for an electrochemical device and an electrochemical device including the same, and more particularly, to a separator for an electrochemical device, wherein a coating layer provided on a porous polymer substrate includes inorganic particles, and the metal oxide in the inorganic particles has a controlled grain size, so that gas generation during the operation of an electrochemical device may be reduced, thereby improving the explosion safety of the electrochemical device, and an electrochemical device including the same.

A primer composition for surface treatment of a polymeric substrate, comprising at least one polymeric binder, at least two distinct types of inorganic fillers, wherein each inorganic filler comprises inorganic particles, and water.

A method for preparing a two-dimensional nanofluidic unipolar ion rectifying membrane belongs to the field of functional materials and membrane chemistry. This method involves constructing multi-scale distributed nanosheet units, cross-linking them with a polymer cross-linking agent, and finally vacuum filtering them through a polymer substrate membrane to obtain a unipolar ion rectifying membrane with a two-dimensional layered asymmetric structure. This ion rectifying membrane allows for precise control of ion transport direction, achieving unidirectional ion transport behavior that promotes forward transport and inhibits reverse transport, thus exhibiting a highly efficient ion rectification effect. Furthermore, by altering the asymmetric structural differences of the ion rectifying membrane, its ion rectification performance can be effectively controlled.

Porous polymer membranes, methods of making porous polymer membranes, and methods of using the membranes are described herein. Generally, composite membranes used for gas separation include a dense top layer responsible for gas separation and a porous substrate layer that provides mechanical support. Although the major separation is achieved by the selective top layer, the pore structure of the substrate has a significant effect on the gas transport performance of the composite membrane

The application discloses a high-transmittance flexible transparent conductive film based on a double-sided antireflection technology and a preparation method thereof. A SiO2 2D photonic crystal antireflection layer is prepared on a polymer substrate surface of the flexible transparent conductive film by using a gas-liquid interface self-assembly method, and a high-molecular doped metal oxide antireflection layer is prepared on a transparent conductive layer surface by using a solution spin coating method, so that the reflectivity of incident light on the polymer substrate surface and the reflectivity of outgoing light on the transparent conductive layer surface are simultaneously reduced. The average transmittance of the flexible transparent conductive film is increased by 10%, the obtained high-transmittance flexible transparent conductive film has good mechanical bending performance, the vacuum and high-temperature annealing process is avoided in the preparation process, and the preparation of a large-area high-transmittance flexible transparent conductive film is facilitated.