68 results about "Fluorinated polymer" patented technology

A polymer composite having piezoelectric properties that can be formed for flexible and / or thin film applications, where the polymer composite includes a polymer matrix and a piezoelectric ceramic filler embedded in the polymer matrix. The polymer matrix can include at least two polymers: a first polymer and a second polymer. The first polymer can be a fluorinated polymer and the second polymer can be compatible with the first polymer and have a dielectric constant less than about 20. The piezoelectric ceramic filler can be lithium-doped potassium sodium niobate (KNLN) and can be about 40-70 vol% of the polymer composite. The remaining 30-60 vol% can be the polymer matrix, which itself can be about 5-20 wt% of the second polymer and 80-95 wt% of the fluorinated polymer.

The present invention relates to a composition comprising a fluorinated polymer P1 and a polymer additive P2 comprising at least one functional group containing a phosphorus atom.

Microelectronic assemblies, related devices and methods, are disclosed herein. In some embodiments, a microelectronic assembly may include a first die having a surface; a second die having a first surface, an opposing second surface, and side surfaces between the first surface and the second surface, wherein the first surface of the second die is electrically coupled to the surface of the first die, and wherein the side surfaces of the second die are scalloped. In some embodiments, side surfaces of the second die may include a protective coating material, where the protective coating material includes an alkyl silane, a fluoroalkyl silane, a thiol, a phosphonic acid, an alkanoic acid, a siloxane, a silazane, a polyolefin, or a fluorinated polymer. In some embodiments, a microelectronic assembly may further include a dielectric material around a plurality of second dies and the dielectric material does not have an interface seam.

The present inventive concept relates to a polymer composite electrode with a tunable work function and high conductivity, a method for manufacturing the same, and an organic electronic device including the polymer composite electrode. According to the present inventive concept, the polymer composite electrode, prepared by adding a perfluorinated polymer compound of Formula 1 to a conductive polymer PEDOT: PSS, followed by sulfuric acid treatment, has a high transmittance of 85% or more in the visible light region and an average electrical conductivity of 2,000 S / cm or higher. Moreover, the work function of the polymer composite electrode can be matched to the highest occupied molecular orbital (HOMO) energy level of the photoactive layer by adjusting the concentration of the perfluorinated polymer compound of Formula 1. Accordingly, even when the photoactive layer is directly formed on the polymer composite electrode without a hole transport layer, efficient hole transport can still be achieved, and thus, the polymer composite electrode can be usefully employed as an anode in optoelectronic devices such as organic solar cells, serving as a viable alternative to conventional ITO.

To provide a polymer electrolyte membrane which is excellent in the strength and the surface property, and which can achieve a low membrane resistance when applied to a water electrolyzer, a membrane electrode assembly, a water electrolyzer, and a method for producing the polymer electrolyte membrane.A polymer electrolyte membrane comprising a fluorinated polymer having ion exchange groups and a nonwoven fabric, wherein the nonwoven fabric contains polyphenylene sulfide fibers; in a fiber diameter distribution histogram of fibers constituting the nonwoven fabric, the maximum frequency peak appears in a range of 100 to 900 nm; and the polymer electrolyte membrane has a thickness of 30 to 90 μm.

To provide a method for producing a fluorinated elastomer, by which a fluorinated polymer excellent in water dispersion stability can be efficiently produced without using an emulsifier, while an aqueous medium with a small environmental impact is used. A method for producing a fluorinated elastomer, which comprises, in an aqueous dispersion that contains substantially no water-soluble emulsifier, and contains a first fluorinated polymer having TFE units and PAVE units and an aqueous medium, polymerizing a monomer containing TFE and PAVE to produce a second fluorinated polymer, wherein in the first fluorinated polymer, a content of the PAVE units is 20 to 95 mol % to a total content of the TFE units and the PAVE units, in the second fluorinated polymer, a content of the PAVE units is 20 to 95 mol % to a total content of the TFE units and the PAVE units, and before start of the polymerization of the monomer, a content of the first fluorinated polymer is 0.01 to 4.0 mass % to a total mass of the aqueous dispersion.

A three-dimensional printing kit includes a build material composition and a dielectric agent. The build material composition includes a fluorinated polymeric material having an effective relative permittivity (εr) value ranging from >3 to ≤10,000. The dielectric agent includes a dielectric material having an effective relative permittivity (εr) value ranging from ≥1.1 to about ≤10,000.

One aspect provides for an electrode material. The electrode material comprises an active material; a non-fluorinated polymeric binder that includes a detectable marker; and a conductive filler.

The present invention relates to a binder comprising a fluorinated polymer A and an acrylic polymer B, characterized in that said acrylic polymer B comprises monomeric units containing one or more -CO2-Li+ functional group(s).

The present invention relates to a composition, preferably in powder form, comprising a polymer P1 comprising recurring units derived from vinylidene fluoride and recurring units derived from a monomer M1 selected from the group consisting of vinylidene fluoride, hexafluoropropene, tetrafluoroethylene, chlorotrifluoroethylene, vinyl fluoride, pentafluoropropene, tetrafluoropropene, trifluoroethylene, 1,2- difluoroethylene and perfluoroalkyle vinyl ethers, perfluoro(1,3-dioxole), perfluoro(2,2-dimethyl-1,3- dioxole) (PDD), a monomer of formula CF2=CFOCF2CF(CF3)OCF2CF2X wherein X is SO2F, CO2H, CH2OH, CH2OCN or CH2OPO3H; a monomer of formula CF2=CFOCF2CF2SO2F; a monomer of formula F(CF2)nCH2OCF=CF2 wherein n is 1, 2, 3, 4 or 5; a monomer of formula R1CH2OCF=CF2 wherein R1 is hydrogen atom or F(CF2)m and m is 1, 2, 3 or 4; a monomer of formula R2OCF=CH2 wherein R2 is F(CF2)p et p is 1, 2, 3 or 4; perfluorobutylethylene (PFBE); trifluoropropene, hexafluoroisobutylene, perfluorobutylethylene, bromotrifluoroethylene, chlorofluoroethylene, chlorotrifluoropropene and 2- trifluorométhyl-3,3,3-trifluoro-1-propene or mixture thereof; characterized in that the particles of said polymer P1 have a Dv99 size distribution lower than 89 microns and a Dv10 size distribution greater than 1.5 microns and in that said polymer P1 has a melting temperature Tm greater than 163.04 – 1.9628*x; wherein x is the weight content of said fluorinated monomer M1 expressed as percent based on the total weight of said polymer P1; the melting temperature being measured by DSC according to the ASTM E794- 06 (2018) standard test method.

A gas separation membrane comprising the following layers: (i) a support layer; (ii) a buffer layer; (iii) a discriminating layer; (iv) optionally a fluorinated polymer layer; and (v) optionally a protective layer; wherein: (a) the buffer layer (ii) and the discriminating layer (iii) each independently comprise groups of Formula (1): M-(O—)x Formula (1) wherein: each M independently is a metal or metalloid atom; O is an oxygen atom; and each x independently has a value of at least 4; (b) the buffer layer (ii) comprises a surface comprising 4 to 10 atomic % of M of Formula (1) groups, wherein M is as hereinbefore defined; (c) the discriminating layer (iii) comprises a surface comprising more than 10 atomic % of M of Formula (1) groups, wherein M is as hereinbefore defined; and (d) layer (ii) is located between layers (i) and (iii).

Articles and devices comprising fluorinated polymers and methods of making fluorinated polymers are generally described. In some cases, such fluorinated elastomers can be used for sensing neural activity, for example, by encapsulating electronic circuitry or other applications. Further, according to certain embodiments, the polymers can be surprisingly deposited directly onto a layer comprising a low molecular weight fluorinated polymer, for example, without swelling in the presence of certain solvents. Some embodiments generally relate to devices and methods for treating fluorinated polymers and subsequently depositing materials onto the treated fluorinated polymers. This can allow for the fabrication and patterning of multilayer articles comprising fluorinated elastomers.

An electrode material including an active material; a non-fluorinated polymer binder that includes a detectable label; and a conductive filler.

This invention discloses a method for preparing a composite solid electrolyte membrane that inhibits interfacial reactions, comprising the following steps: dissolving a fluorinated polymer and a lithium salt in N,N-dimethylformamide and stirring at 45-55°C to obtain solution A; ball-milling a garnet solid electrolyte to obtain a uniform dispersion, adding bicarbonate and stirring to obtain solution B, wherein the mass ratio of fluorinated polymer, lithium salt, garnet solid electrolyte, and bicarbonate is 0.4:0.6:1:0.15-0.25; adding solution B to solution A and stirring to obtain a uniform electrolyte slurry, transferring it to a glass petri dish, drying it first at 45-50°C with forced air, and then vacuum drying it at 110-120°C to obtain the composite solid electrolyte membrane. This invention introduces bicarbonate to improve the alkaline environment of the garnet solid electrolyte, achieving quantitative control of the interfacial reaction between the fluorinated polymer and the garnet solid electrolyte, and increasing the ionic conductivity to 10. ‑3 S cm ‑1 .

A nanocomposite sorbent which contains molybdenum carbide, molybdenum nitride, and molybdenum oxide. The nanocomposite sorbent is in the form of nanosheets having a mean size of 10 to 100 μm and a mean thickness of 10 to 1000 nm. A method of forming the nanocomposite sorbent is also provided. The nanocomposite sorbent is used to form a membrane filter with a fluorinated polymer. The nanocomposite sorbent and membrane filter are each used in a method of removing an organic pollutant from water.

The present invention relates to a lithium metal battery comprising a positive electrode, a lithium metal negative electrode, and a separator provided between the positive electrode and the lithium metal negative electrode, at least one surface of the separator being provided with a coating layer containing inorganic particles and a binder containing PAN and a fluorinated polymer.

The invention discloses a preparation method of a polyimide lithium ion battery diaphragm in the technical field of lithium ion batteries, which comprises the following steps: firstly, preparing a polyamide acid solution, and then adding a specially-made fluorinated polymer and mesoporous silica core-shell compound, polyethylene glycol and lauryl sodium sulfate to form mixed slurry; and carrying out film casting, stepped heating heat treatment and post-treatment to obtain the composite diaphragm. Wherein the core-shell compound is constructed through reaction of aminated mesoporous silica and a fluorinated polymer solution under the action of a coupling agent and is obtained through treatment of a lithium salt solution. The diaphragm prepared by the method has a three-dimensional porous structure, excellent thermal stability, high ionic conductivity and high lithium ion transference number, can effectively inhibit the growth of lithium dendrites, remarkably improves the safety performance of the battery and prolongs the cycle life of the battery, and is simple in preparation process, easy in raw material obtaining and suitable for large-scale production.

A moldable polymer composite material with piezoelectric properties for flexible and / or thin-film applications, wherein the polymer composite material comprises a polymer matrix and a piezoelectric ceramic filler embedded in the polymer matrix. The polymer matrix may comprise at least two polymers: a first polymer and a second polymer. The first polymer may be a fluorinated polymer, and the second polymer may be compatible with the first polymer and have a dielectric constant less than about 20. The piezoelectric ceramic filler may be a lead-free ceramic filler such as barium titanate, and may comprise about 40-70 vol% of the polymer composite material. The remaining 30-60 vol% may comprise the polymer matrix, which itself may comprise about 5-20 wt% of the second polymer and 80-95 wt% of the fluorinated polymer.

This invention provides a high-throughput analytical method based on UHPLC-MS / MS for screening 82 perfluorinated and polyfluoroalkyl substances in serum. The method employs a 96-well plate protein precipitation method for pretreatment, allowing direct injection of the extract, simplifying operation and reducing contamination. By optimizing chromatographic and mass spectrometric conditions, it achieves simultaneous separation and detection of 82 traditional and novel perfluorinated and polyfluoroalkyl substances, covering a wide range of categories including perfluorinated alkyl carboxylic acids, sulfonic acids, ethers, and fluorinated polymers. This method offers advantages such as simple pretreatment, broad coverage, high sensitivity, and high throughput, providing reliable technical support for population serum perfluorinated and polyfluoroalkyl substance exposure screening and health risk assessment.

Articles and devices comprising fluorinated polymers, as well as methods of preparing fluorinated polymers, are generally described. In some cases, such fluorinated elastomers can be used for sensing neural activity, e.g., by encapsulating electronic circuits, or other applications. Furthermore, according to certain embodiments, polymers can, surprisingly, be directly deposited onto layers comprising low molecular weight fluorinated polymers, e.g., without swelling in the presence of certain solvents. Some embodiments are generally directed to devices and methods for treating fluorinated polymers and subsequently depositing material onto the treated fluorinated polymers. This may allow the fabrication and patterning of multilayered articles comprising fluorinated elastomers.

A liquid-repellent agent composition according to the present invention includes: a polymer (A) containing a constitutional unit derived from a monomer (a) expressed by formula (1), and a constitutional unit derived from an acrylic monomer (b) that has a C6-28 alkyl group; and a liquid medium.　With the present invention, it is possible to provide: a liquid-repellent agent composition that exhibits excellent liquid repellency when used on a treated product, has good compatibility with polar solvents, and includes a non-fluorinated polymer; a liquid-repellent agent treated product that is obtained by treatment with the liquid-repellent agent composition; and a method for imparting liquid repellency that uses the liquid-repellent agent composition. (In formula (1), X represents O or a NH group, and R1 represents a C1-28 alkyl group.)

Composite materials that include fluoropolymers. Methods of reducing friction, which may include contacting a first article and a second article that include or are formed of one or more fluoropolymers. The composite materials may include a fluorinated polymer and a first filler. The first filler may be present at an amount of about 3% to about 50%, by weight, based on the total weight of the first fluorinated polymer and the first filler.

The invention relates to the technical field of wire and cable manufacturing, and discloses a crosslinked polyethylene insulated cotton covered wire with a low-temperature frost crack prevention function. An insulating layer of the crosslinked polyethylene insulated cotton covered wire comprises linear low-density polyethylene, an ethylene-1-octene copolymer elastomer, porous linear low-density polyethylene carrier resin, a fluorine-containing polymer processing aid and a homogeneous active mixed solution. The homogeneous active mixed solution is composed of vinyl silane, 1-octadecene, high vinyl liquid polybutadiene, an initiator and the like, and is adsorbed in porous carrier resin to prepare a dry silane master batch. All the components are subjected to melt grafting in a double-screw extruder and are formed through coating curing and crosslinking treatment. According to the invention, 1-octadecene and polybutadiene are introduced to construct a flexible cross-linking node, and the physical confinement of the carrier resin and the high-pressure closed foam inhibition process of the extruder are combined, so that the insulating layer has the brittle fracture resistance at-40 DEG C, and meanwhile, the high-temperature dimensional stability and low dielectric loss characteristics are maintained.

This invention provides a composition, an article containing the composition, and a method for manufacturing the article. The composition comprises a fluorinated polymer, a quaternary ammonium salt, and a crosslinking accelerator. The article has high transparency and a maximum continuous use temperature that exceeds the melting point of the fluorinated polymer.

This application provides an electrode assembly, a battery cell, a battery, and an electric device. The electrode assembly includes a negative electrode plate, a positive electrode plate, and a separator, where the negative electrode plate includes a negative electrode film layer, the negative electrode film layer including a fluorinated polymer, and the positive electrode plate includes a positive electrode film layer, the positive electrode film layer including a nitrile-based polymer material. Using this electrode assembly can significantly improve the cycle performance of batteries.

A PTFE-based liner having improved adhesion to a polymer jacket.SOLUTION: A multilayer tube comprising an inner layer and a tie layer is described. The inner layer comprises a fluorinated polymer and has an inner surface defining an inner diameter of the multi-layer tube and an outer surface separated from the inner surface by a thickness of the inner layer. The tie layer comprises a functionalized styrenic block copolymer and is disposed on an outer surface of the inner layer. When the multi-layer tube further comprises an outer layer, the multi-layer tube exhibits improved peel strength compared to a multi-layer tube comprising only an inner layer and an outer layer. Also described are methods of making the multi-layer tubes and articles comprising the multi-layer tubes.SELECTED DRAWING: Figure 1

The application relates to the technical field of solid electrolytes or solid batteries, in particular to a solid electrolyte and a preparation method thereof and a lithium ion battery. The solid electrolyte comprises a ceramic matrix and an interface modification layer arranged on the surface of the ceramic matrix; the chemical general formula of the ceramic matrix is Li 1+x Al x Ti 2‑x‑y Sc y (PO4)3, wherein x=0.25-0.40 and y=0.02-0.10; a lithium-rich and phosphorus-rich grain boundary layer exists in the grain boundary area of the ceramic matrix, the thickness of the lithium-rich and phosphorus-rich grain boundary layer is 5-20 nm; the interface modification layer is arranged on the surface of the ceramic matrix facing the lithium metal negative electrode, the interface modification layer comprises a fluorinated polymer and an oxalate borate, and the thickness of the interface modification layer is 0.5-5 microns. The ion conductivity is improved through bulk doping, the grain boundary resistance is reduced through grain boundary modification, the lithium negative electrode side reaction is inhibited through the interface protection layer, and the environmental stability is improved through the surface moisture-proof layer.

The present invention relates to a binder for electrode of a secondary battery comprising a fluorinated polymer A and an acrylic polymer B, characterized in that said acrylic polymer B comprises monomeric units containing one or more CO2-Li+ functional group(s) and said acrylic polymer B has a lithiation rate of at least 30%.

The invention discloses an nAl (at) SCA (at) fluorine-containing polyether composite particle and a preparation method thereof, and relates to a fluorinated modified nAl composite particle and a preparation method thereof. The invention aims to solve the problems that in the prior art, the interface bonding property of nAl and a fluorine polymer is poor, and the functional expansion potential of a traditional fluorine polymer is small. The nAl (at) SCA (silane coupling agent) modified particles are coated with branched chain type fluorine-containing polyether to prepare the nAl (at) SCA fluorine-containing polyether composite particles, and the preparation method of the nAl (at) SCA fluorine-containing polyether composite particles comprises the following steps: ultrasonically dispersing nAl in a solvent, adding SCA, stirring to modify nAl particles, centrifugally collecting powder, and drying to prepare the nAl (at) SCA modified particles. And dissolving fluorine-containing polyether (FPE) in a solvent in a flask, adding a catalyst or an initiator into nitrogen, ultrasonically dispersing the nAl (at) SCA modified particles in the solvent during the period, slowly dripping the dispersion liquid into the flask, continuously stirring for a certain time after dripping is completed, centrifugally collecting powder, and drying to prepare the nAl (at) SCA (at) fluorine-containing polyether composite particles. The invention belongs to the technical field of nano material modification and composite materials.

A surface-adhesive overcurrent protection element includes at least one PTC material layer, a first conductive layer, a second conductive layer, a first electrode, a second electrode, at least one insulating layer, and a capping layer. The PTC material layer comprises a crystalline polymer and conductive fillers dispersed within the crystalline polymer. The first and second conductive layers are respectively disposed on the first and second surfaces of the PTC material layer. The first and second electrodes are electrically connected to the first and second conductive layers, respectively. An insulating layer is disposed between the first and second electrodes for electrical isolation. The capping layer comprises a fluorinated polymer material and covers the entire outer surface of the surface-adhesive overcurrent protection element.