137 results about "Thermosetting polymer" patented technology

The invention relates to the technical field of protective films, and particularly discloses a composite glass protective paste for a flexible folding screen and a preparation method of the composite glass protective paste. The composite glass protection paste for the flexible folding screen sequentially comprises a functional base film, a first thermosetting polymer film, a UTG ultrathin glass layer, a second thermosetting polymer film and an OCA adhesive layer from top to bottom, the preparation method of the OCA adhesive layer comprises the following steps: carrying out activating treatment on nano silicon dioxide particles to obtain modified particles with cations on the surfaces; carrying out reaction on the modified particles and molten hydroxy acrylic resin under the ultrasonic action, and carrying out extrusion granulation to obtain elastic acrylic master batches; uniformly mixing the elastic acrylic master batch with a cross-linking agent and a photoinitiator to obtain the acrylic OCA; and coating OCA on one surface of the release film, and performing ultraviolet curing to obtain an OCA layer. According to the composite glass protection paste for the flexible folding screen, the bending resistance of the protection paste is improved.

A gun has parts that slide past one another during operation. A coating is formed on at least a surface of a first part that contacts a second part. At least an upper layer of the coating is porous and comprises a thermoset polymer and a filler. One or both parts may be part of a gas-operated reloading mechanism. The coating prevents jamming by excluding particles, yielding to particles that still manage to intrude, and by providing a reservoir for lubricant. The coating reduces clearances, improves accuracy, and reduces operating temperatures. The coating excludes particles from the lubricant, effectively allowing a large volume of lubricant to be used without the drawback of trapping dirt and other contaminants in the lubricant.

The present disclosure provides a polymerizable thermosetting compositions comprising monofunctional benzoxazine bearing unsaturated functional group, and a monophthalonitrile resin containing unsaturated or amine functional group. The compositions may be cured to form thermoset polymers having improved thermal and mechanical properties, such as a low melting and low viscosity monobenzoxazine. The cured thermoset polymers having excellent thermal and mechanical properties, such as high thermal stability, heat resistance, high char yield, and enhanced structural rigidity.

A dielectric material is a thermoset polymer that is a copolymer of a first monomer and a second monomer. The first monomer can comprise a dipolar functional group having a dipole monomer of about 3.9 Debye or more. The first monomer can comprise a sulfur atom. The second monomer is a functionalized oligomeric silsesquioxane. The thermoset polymer can have a dielectric constant from about 15 to about 35 at 1000 Hertz. Methods can include disposing a precursor solution on a substrate. Methods can include heating the precursor solution to form a precursor layer. Methods can include disposing a photomask on a covered portion of the precursor layer and irradiating an exposed portion of the precursor layer to form the dielectric material. Methods can include removing the photomask and contacting the covered portion with a developing solution.

A co-molded metal lined resin impregnated fiber reinforced component includes a fiber preform; a metal layer covering at least a portion of the fibrous preform, the metal layer having a modified surface adhered to the thermosetting resin; and a thermosetting resin surrounding and impregnating the fiber preform and joining the surface of the metal layer. A method of making a co-molded thermoset polymer composite with a metal foil includes depositing a thin film having a thickness of less than 500 nm on a metal surface to be bonded to the composite, the thin film comprising hybrid organic and metal oxide groups; putting the fiber prefabricated part and the metal foil into a cavity of a mold; a thermosetting resin is injected into the mold to surround and impregnate the fibrous preform and adhere to the film on the foil to form a co-molded composite.

Methods for forming hard carbon, hard carbon, and hard carbon negative electrodes are provided. The method includes liquefying lignin with an acid catalyst in at least one of glycerol or glycerol / ethylene glycol to form a first monomer of liquefied lignin. The method includes providing a second monomer including a cross-linking agent to a first monomer of liquefied lignin to facilitate controlled polymerization to produce a resin of controlled size and morphology. In addition, the method includes pyrolyzing the resin to form hard carbon having a controlled morphology. The first monomer and the second monomer are provided in a ratio of 10 wt% to 90 wt%.

The present application relates to a method for preparing a thermosetting midsole using foamed particles with graphene oxide on surface. The method comprises: fusing the foamed particles with graphene oxide on surface with each other in a midsole mold under steam heating conditions to form the thermosetting midsole, wherein the body of the foamed particles with graphene oxide on surface is formed by mixing 60 wt % to 95 wt % thermoplastic polyurethane and 5 wt % to 40 wt % thermosetting polymer and foaming under non curing conditions. Thermosetting midsoles have high mechanical strength, good thermal stability, good chemical resistance, and good breathability, making them suitable for outdoor and extreme environments. The graphene oxide on the surface of the foamed particles prevents the foamed particles from fusing with other foamed particles where graphene is present, thus naturally leaving breathable channels.

The invention relates to a flow polarization process for improving the polarization efficiency of a ceramic / polymer-based piezoelectric composite material, and belongs to the technical field of flexible piezoelectric composite materials. Piezoelectric nanorods selected by the composite material are consistent in electric dipole orientation under a mesoscale (can be prepared by a molten salt method, a hydrothermal method or an electrostatic spinning method), a thermosetting polymer is used as a matrix (such as polydimethylsiloxane, thermosetting epoxy resin and the like), and polarity orientation of piezoelectric filler in the polymer matrix is regulated and controlled by means of electrophoresis, so that the piezoelectric composite material is obtained. The orientation of the electric dipoles of the material is consistent under the macroscopic scale, the material is firstly polarized and then molded, and the polarization efficiency of the material is remarkably improved.

Processes, foams, foamable compositions, and blowing agents related to thermoset polymer foam compositions comprising an active hydrogen-containing compound; and a blowing agent comprising HFO-1252zc and optionally HFC-152a.

This application discloses a battery device, an electrical device, and a method for manufacturing the battery device, relating to the field of flexible circuit board technology. The battery device includes a housing, a battery cell, and a flexible circuit board assembly. The battery cell is housed within the housing. The flexible circuit board assembly includes a target flexible circuit board and a flexible circuit board protective structure. The target flexible circuit board is electrically connected to the battery cell. The flexible circuit board protective structure is attached to the target flexible circuit board. The flexible circuit board protective structure includes a carbon fiber layer, a thermal expansion coefficient control layer, and a first flexible buffer layer. The thermal expansion coefficient control layer is disposed on the carbon fiber layer and is made of a thermosetting polymer material or a thermosetting inorganic reinforced composite material. The first flexible buffer layer is disposed on the carbon fiber layer and is made of an elastic material. This solution can reduce the warping of the flexible circuit board and improve its flatness and reliability.

Metal-organic thermoset polymers are provided. The metal-organic thermoset polymers can be formed from a mixture including at least one epoxy resin and at least one metal alkoxide. Articles including the metal-organic thermoset polymers and processes for manufacturing the metal-organic thermoset polymers are also provided.

The invention relates to the field of oil-gas exploration and development displacement testing, and provides a low-permeability artificial rock core and a manufacturing method thereof.The manufacturing method comprises the steps of S1, quartz sand particle screening, S2, rock core framework particle combination, S3, rock core framework particle cementing agent preparation, S4, rock core raw material mixing, S5, high-pressure pressing forming, S6, constant-temperature and constant-pressure reaction, S7, cooling and depressurization, S8, temperature-controlled heating curing and S9, rock core cutting. The low-permeability artificial rock core with low porosity and low permeability is prepared under the combined action of double factors of temperature and pressure, the heat-resistant stability and strength reliability of the rock core are ensured by adopting a thermosetting polymer powder cementing agent, and meanwhile, the prepared rock core has point-point and point-surface contact and cementing forms; a micro-pore structure is similar to that of a natural core, so that the problem of insufficient natural core sources in a low-permeability core flow experiment is solved.

This invention discloses a polyester membrane comprising: multiple channels spaced apart within the polyester membrane, each channel including a closed chamber; a mixed flame-retardant liquid filled within the chamber, the mixed flame-retardant liquid comprising a free radical scavenging material and a thermal transition material, the thermal transition material comprising a thermosetting polymer and / or a thermo-induced phase change substance; when preset conditions are met, the polyester membrane ruptures, and the mixed flame-retardant liquid flows out from the chamber. The free radical scavenging material is used to block the combustion reaction, and the thermal transition material is used to form a physical barrier layer. The preset thermal runaway emergency condition corresponds to the condition when the battery cell has a risk of thermal runaway. The mixed flame-retardant liquid can be rapidly released based on the preset conditions, achieving combustion reaction blocking through free radical scavenging, combined with the physical barrier effect, effectively curbing the spread of thermal runaway and significantly improving the safety protection level of the battery cell. This invention also discloses a lithium-ion battery.

The invention relates to a magnesium- aluminium layered double hydroxide (Mg-Al LDH) based filler product comprising boron and functionalised with phosphocholine chloride calcium salt tetrahydrate (PC), the synthesis method of this filler product, and obtaining a new material by preparing a composite material of this filler product, which has antibacterial activity, with a thermoplastic polymer or thermosetting polymer. In the production of the composite material that is the subject of the invention, as the polymer, preferably unsaturated polyester resin (DPes) is used. The composite material comprising the filler product of the invention has the feature of preventing bacterial adhesion / biofilm formation. Said material has the potential to be used for various applications, including medical devices, industrial processes, food production, storage and sales areas, food contact surfaces, areas requiring cleaning and hygiene, and different surface materials.

The invention relates to a handle for a cooking container. The handle includes a gripping element made of a thermoplastic polymer and a protective element made of a thermoset polymer, the gripping element having a gripping portion configured to be gripped and a connecting portion reversibly coupled to the protective element such that the connecting portion is enclosed by the protective element, the protection element is configured to be reversibly coupled to the container.

The invention belongs to the field of thermosetting polymer composite materials, and discloses a light-transmitting composite material with an ultraviolet shielding function and a preparation method and application thereof, and the preparation method comprises the following steps: (1) uniformly mixing 35-55 parts of an epoxy prepolymer, 30-40 parts of a curing agent, 0.05-1 part of a catalyst and 0-61.5 parts of an auxiliary agent to obtain a matrix resin mixture; the epoxy prepolymer at least contains an alicyclic epoxy prepolymer, and the proportion of the alicyclic epoxy prepolymer is not less than 50%; the curing agent is alicyclic diamine containing a semi-aromatic imine bond; the catalyst is a tertiary amine or imidazole catalyst; (2) dipping continuous fibers in the melt or solution of the matrix resin mixture, drying, and cooling to obtain a prepreg; and (3) carrying out hot-pressing curing molding on the prepreg to obtain the light-transmitting composite material. The composite material has excellent ultraviolet shielding, light transmission, mechanical properties and heat resistance, the preparation process is simple, and the prepared composite material can be recycled.

The present invention relates to an intermediate composite element (200), which comprises: - at least one molded part (3, 300, 301, 310) comprising a reinforcing fiber assembly embedded in a thermosetting polymer matrix, - at least one dry stack (4, 400, 401, 410) of reinforcing fiber layers, comprising at least one polymer porous layer inserted between two consecutive reinforcing fiber layers, the molded part (300) being attached to the surface of the stack and bonded to the latter, characterized in that the thermosetting polymer partially penetrates the thickness of the dry stack (400) from the surface of the attached molded part (300) of the dry stack (400), thereby providing a bond between the dry stack (400) and the molded part (300). The present invention also relates to its production process, the process of producing composite parts using such an element, and the resulting composite parts.

The present disclosure describes functional oligomers or functional polymers. The functional oligomers or functional polymers may contain functional groups, e.g., —OH and / or —CHO. The functional oligomers or functional polymers may be obtained from hydrolyzing certain copolymers and may be soluble in commercially available solvents. The copolymers may be thermosetting polymers. The functional oligomers and functional polymers may be useful for recycling thermosetting polymers and may be useful as starting materials for preparing additional oligomers or polymers.

Described herein is the use of a composition for making an insulating thermosetting resin, or of an insulating thermosetting resin or an insulating thermoset polymer thereof, where said composition comprises a curable component, comprising or consisting of a carbodiimide component and a cyanate ester component, and wherein the use is as electrical insulation or as electrical insulation material in a printed circuit element and / or as a buildup film material in a printed circuit element. Moreover is described a respective composition, insulating thermosetting resin or insulating thermoset polymer, as well as a layer composite, comprising a respective composition, insulating thermosetting resin or insulating thermoset polymer. Also described is a printed circuit element, comprising at least one insulating layer, comprising a respective composition, insulating thermosetting resin or insulating thermoset polymer, and a method of making said printed circuit element. It is furthermore described a pre-impregnated fiber article, comprising a respective insulating thermosetting resin as described herein.

A cartridge includes a bullet on which there is formed a coating. At least an upper layer of the coating is porous and comprises a thermoset polymer and a filler. The filler may be a dry film lubricant. The cartridge may be used in a gun of the type that has a rifled barrel. A rifled barrel has a bore diameter and a groove diameter. The bullet may have a metal diameter that is less than the groove diameter but slightly greater than the bore diameter. The coated bullet may have a diameter that is greater than or equal to the groove diameter. When fired, the bullet produces less barrel friction and heating than a conventional bullet. The velocity of the coated bullets is greater and the velocity distribution is more narrow compared to uncoated bullets.

The invention relates to a method for manufacturing a blade or vane made of composite material, comprising: - obtaining (E10) an insert, comprising the production of a fibrous stack having a predetermined fibrous orientation by an automatic fiber placement technique, the composite insert comprising said fibrous stack impregnated with a thermosetting polymer, - obtaining (E12) a porous fibrous reinforcement obtained by three-dimensional weaving and having a disconnection defining two disconnected fibrous portions, - obtaining (E20) a fibrous assembly by introducing the insert inside the porous fibrous reinforcement, the insert thus introduced giving its shape to the reinforcement, - introducing (E30) a thermosetting resin into the porous fibrous reinforcement after the fibrous assembly has been obtained, and - co-curing (E40) the thermosetting resin thus introduced with the thermosetting polymer.

Methods and systems of 3D printing non-photocurable thermosetting polymer materials and continuous fiber composites that reduces the manufacturing time and energy required by implementing fast, self-sustaining, and self-propagating, in-situ curing of the polymer and the and continuous fiber composites as the non-photocurable thermosetting polymer materials are being printed.

An ecological insulation board based on natural fibers comprises at least one core layer. The core layer is prepared from the following components in percentage by weight: 65 to 75 percent of natural fiber, 20 to 30 percent of bio-based resin, 1 to 5 percent of flame retardant and 3 to 10 percent of filler. The core layer in the ecological insulation board takes the natural fibers as a structural framework, and proper bio-based resin is selected, so that the bio-based resin is required to be capable of fixedly bonding the fibers together and also required to be capable of penetrating into the surfaces of the fibers and cross-linking with the fibers to form a chemical modifier. The chemical cross-linking reaction inside the bioresin system can prevent warping and layering, forming a durable thermosetting polymer network. The fibers and the surface layer are anchored together through the networks, and even under different heat or humidity conditions, very high adhesive strength, dimensional stability and moisture resistance can be generated.

Lightweight composite panels, compositions used to make composite panels, and methods for manufacturing composite panels. The composite panels include a lightweight foam core sandwiched between thin protective layers (e.g., fiber reinforced cementitious layer, thermoset polymer layer, e.g., polyurea or polyaspartic, or magnesium oxide). Lightweight composite panels can be used in place of conventional wallboards and panels, including for various uses such as interior drywall, backerboard for tile and other interior finishes, including those exposed to moisture, exterior sheathing, floor underlayment, soffits, roofing decks, shaft liners, and the like. Lightweight composite panels can be cut, drilled, and screwed onto structural elements of buildings, such as wall frames comprising wooden or metal studs, roof frames comprising boards, studs, or trusses, floor joists, concrete floors, foundations, and the like. Exterior sheathing panels can include a drainage layer and / or a factory installed finish. Interior panels that replace gypsum boards can include a plaster layer.

The present description relates to a reinforced composite material rebar for reinforcing concrete elements, comprising: a core comprising fibres selected from glass fibres, basalt fibres, carbon fibres or combinations thereof; a woven mesh covering the core of the rebar; a thermosetting polymer matrix selected from polyester, epoxy or vinyl-ester, or mixtures thereof; and at least one cord wound helically around the woven mesh; wherein the woven mesh is impregnated with the polymer matrix, and wherein the woven mesh is selected from polyester, biofibre or mixtures thereof. The invention also relates to a concrete structure and to the method of obtaining same.

The present invention discloses a high-performance bamboo fiber special paper-based triboelectric nanogenerator and its preparation method. The triboelectric nanogenerator uses bamboo fiber paper as the cellulose substrate, in which a polyhydroxy polyurethane-based glassy polymer is in-situ synthesized to obtain bamboo fiber special paper. The bamboo fiber special paper and a triboelectric negative material are printed with a conductive material on the back, and then assembled by connecting wires. The present invention utilizes the advantages of the porous structure of bamboo fiber paper and combines an efficient in-situ polymerization strategy to in-situ synthesize a recyclable thermosetting polymer with strong electron-donating ability, thereby endowing the bamboo fiber paper with strong electron-donating ability and serving as a triboelectric positive material to improve the output performance and stability of the triboelectric nanogenerator. It not only realizes the preparation of high-performance fiber paper with green environmental protection, but also lays a foundation for the high-value utilization of bamboo fiber, providing a new idea for the preparation of cellulose-based triboelectric nanogenerators.

The invention discloses a preparation method and application of a catalytic char-forming magnesium borate whisker flame retardant and a thermosetting flame-retardant polymer of the catalytic char-forming magnesium borate whisker flame retardant, the special structure of the flame retardant is that a functional layer with atomic-scale catalytic char-forming flame-retardant capability is constructed on the surface of magnesium borate, and the preparation process comprises the following steps: S1, activating and modifying the surface of a magnesium borate whisker; s2, complexing the modified magnesium borate whiskers with metal ions; s3, loading the magnesium borate whisker with a complex structure containing a metal organic compound; the key point of the invention is that a host-guest structure with atomic-scale catalytic char forming ability is loaded on the surface of the magnesium borate whisker by using chemical bonds, so that the magnesium borate whisker polymer composite material is endowed with excellent char forming ability and flame retardant property. The magnesium borate whisker flame retardant capable of catalyzing charring can be applied to the field of flame retardance of thermosetting polymers, the adding amount is 2-4 wt%, the charring capacity of a thermosetting polymer composite material is remarkably improved, the UL-94 grade reaches the V-0 grade, and the limit oxygen index is increased to 30-34%.

To provide solvent-borne thermoset polyamide urethane and / or urea based coatings.SOLUTION: The present invention relates to thermoset polymer solution, such as polyurethanes and / or polyureas that include sufficient polyamide to give polyamide strength, adhesion and durability, where the polymer solutions can be prepared as a one- or two-component solvent-borne coating composition. The polyamides give a harder, more chemical-resistant, and often tougher thermoset resin than similar water-borne polyurethanes rich in polyamide. The compositions of this disclosure differ from other polyamides as they have been formulated to have viscosity appropriate for use as coatings and then have crosslinking technology to form hard thermoset films.SELECTED DRAWING: None

The present invention refers to a multilayer laminate for nautical use comprising at least one matrix composed of a thermosetting polymer and a plurality of reinforcing layers, consisting of a fabric and of a non-woven fabric, comprising thermoplastic polymer fibres, wherein the surface roughness (Rq) of the multilayer is less than or equal to the roughness of a laminate consisting only of the matrix.

To provide an apparatus for effectively degassing and mixing a reactive thermosetting composition in a short time and at low cost.SOLUTION: An apparatus for batch reactive mixing and degassing comprises a container 1; a rotary plate 2 on which the container 1 is disposed and which is rotatably mounted; first driving means for driving the rotary plate 2; second driving means for driving the rotary plate on which the container 1 is disposed; and means for placing the container 1 under vacuum. The container 1 includes a body 4, a bowl 8 that can be disposed inside the body 4, a removable cover 5, and a poppet check valve 7 connected to the cover 5. The apparatus further includes control means for controlling the first driving means and the second driving means, wherein the control means is capable of continuously and independently varying a revolution speed and a rotation speed of the container 1.SELECTED DRAWING: Figure 2