58 results about "Polymer matrix composite" patented technology

Various products, systems, and parts or components of such products and systems include a binder matrix (such as a polymer matrix) reinforced with carbon fibers and graphene particles. Inclusion of the carbon fibers and graphene particles substantially improves mechanical strength and utility of the resulting parts, components, and corresponding products and systems. The improvements facilitate substantial advances in various practices of fabrication using additive manufacturing techniques, which lend to applications in biomedical, industrial, agricultural, mechanical, energy generation, transmission, and storage, military, transportation, recreational, and other fields. The inventive materials are particularly well suited for manufacturing of parts for terrestrial vehicles, manned or unmanned aerial vehicles, and space-borne vehicles. Substantial improvements to mechanical strength are achieved even at very low levels of graphene loading (e.g., at about 0.1 wt %), such that the resulting products are substantially stronger than corresponding products lacking said graphene loading, while yet having substantially the same mass.

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

Carbon composites, including carbon fibers in a binder matrix, exhibit unique, advantageous mechanical properties, including inter laminar shear strength, compression strength, and resistance to forces applied at various angles. These improvements allow use of less material while conveying improved strength in myriad practical applications, reducing overall financial cost of fabrication, distribution, and practical utilization. These advantages are optimized via utilizing fabrication techniques that incorporate carbon filaments into carbon fibers, preferably incorporating carbon filaments and / or graphene platelets into said fibers, and incorporating the composite fibers, filaments, and / or graphene platelets into a binder matrix. The filaments and graphene platelets mechanically reinforce individual fibers, structures including multiple fibers strung together in a single cord, and the binder matrix, by “crosslinking” the individual fibers and / or fibers and binder matrix, e.g., with filaments and / or graphene ligands. The result includes materials exhibiting superior strength and reduced mass relative to conventional carbon fibers in a binder matrix.

The invention relates to a polymer matrix composite joint, a system and a method for treating a polymer matrix composite joint. A polymer matrix composite joint includes a first contact region of a first polymer matrix composite structure, a second contact region of a second polymer matrix composite structure, and a resistive film heating element. The resistive film heating element includes a lignin-based carbonaceous material. The resistive film heating element defines a longitudinal form and is disposed between the first contact area and the second contact area. The resistive film heating element is sized and shaped based on the first contact area and the second contact area. And the resistive film heating element is used for jointing the first polymer matrix composite structure and the second polymer matrix composite structure at the first contact area and the second contact area by adopting a resistance welding process. A system for treating a polymer matrix composite joint and a method for treating a polymer matrix composite joint are also disclosed.

The present disclosure relates to environmentally friendly polymer composites and related methods. A polymer composite structure includes a polymer matrix composite and an oxygen impermeable layer coupled to the polymer matrix composite. The oxygen impermeable layer is configured to resist oxidation in the polymer matrix composite.

A method, computer program product, and composite patch includes attaching at least a portion of 2D-material flakes to at least a portion of ferromagnetic materials to form heterostructures. The heterostructures may be dispersed in a solvent at a first temperature. The solvent and the heterostructures may be integrated into a polymer matrix composite patch. At a second temperature below Tc, at least the portion of the 2D-material flakes may be adjusted within the composite patch. A polymer matrix of the polymer matrix composite patch may be cured to fix the alignment of at least the portion of the 2D-material flakes in the composite patch at a third temperature below Tc, wherein the composite patch, once cured, operates at fourth temperatures above Tc.

The present disclosure relates to a method for manufacturing a thermally protected polymer composite structure. A method for manufacturing a thermally protected polymer composite structure using a thermal barrier layer, the thermal barrier layer being porous and comprising a tool side surface and a non-tool side surface opposite the tool side surface, the method includes: curing an adhesive onto a non-tool-side surface of the thermal barrier layer to produce a coated thermal barrier layer including a coated surface; and co-bonding a polymer matrix composite to the coated surface of the coated thermal barrier layer.

The present disclosure provides novel microfiber and graphene reinforced polymer matrix composites and methods of forming them. The disclosed microfiber and graphene reinforced polymer matrix composites exhibit improved mechanical properties such as stiffness, tensile strength, and impact energy absorption.

The embodiment of the utility model provides a shear fatigue test tool for a polymer-based composite material, and relates to the technical field of performance test of composite material fan blade materials. The problem that a composite material fan blade material characteristic detection tool clamp can only provide one-way compression loading is solved. The device comprises an upper equipment connecting structure, a lower equipment connecting structure, a rigid connecting rod, a panel, a base plate, a sample upper chuck and a sample lower chuck, wherein the top end of the rigid connecting rod is detachably fixed with the upper equipment connecting structure; the panel is fixed with the bottom end of the rigid connecting rod, the base plate is fixed with the lower equipment connecting structure, the sample upper chuck is fixed with the panel, the sample lower chuck is fixed with the base plate, and the height distance between the panel and the base plate is adjustable, so that the sample upper chuck and the sample lower chuck do reverse movement in the height direction. In the process of stretching or compressing the rigid connecting rod, the rigid connecting rod can keep the central axis unchanged all the time, so that the sample is prevented from being eccentrically loaded and distorted.

The invention provides a sizing agent for quartz fibers as well as a preparation method and application thereof, and relates to the technical field of preparation and application of compositions of high-molecular compounds. According to the preparation method, the sizing agent for the quartz fiber can be stably prepared through a preparation process of aromatic dianhydride pretreatment, specific polycondensation treatment and mixing treatment of polyamide acid salt, tertiary amine and a functional additive according to a specific ratio; the whole preparation process is a full-water-based system, the used functional additive can be completely volatilized at high temperature, no residue exists, and the characteristics of environment friendliness and high performance are achieved. The obtained sizing agent for the quartz fiber has extremely high molecular weight and temperature resistance potential, and the glass transition temperature of the sizing agent is 300 DEG C or above. When the quartz fiber sizing agent is applied to quartz fiber sizing treatment, a high-performance protective layer capable of resisting the high temperature of 350 DEG C or above can be formed on the surface of the quartz fiber, the long-term working temperature and the processing stability range of the quartz fiber reinforced polymer matrix composite material are widened, and the application prospect is wide.

A method for forming a graphene-reinforced polymer matrix composite is disclosed. The method includes distributing graphite microparticles into a molten thermoplastic polymer phase; and applying a succession of shear strain events to the molten polymer phase so that the molten polymer phase exfoliates the graphite successively with each event until at least 50% of the graphite is exfoliated to form a distribution in the molten polymer phase of single- and multi-layer graphene nanoparticles less than 50 nanometers thick along the c-axis direction.

A method for manufacturing a thermally protected polymer composite structure using a thermal barrier layer, the thermal barrier layer being porous and including a tool-side surface and a non-tool-side surface opposed from the tool-side surface, the method including co-bonding an adhesive onto the non-tool-side surface of the thermal barrier layer to yield a coated thermal barrier layer comprising a coated surface, and co-bonding a polymer matrix composite material onto the coated surface of the coated thermal barrier layer.

Non-polymer coupling agent formulations for producing wood polymer composites are provided, the non-polymer coupling agent formulations comprising at least one organic peroxide and a non-polymer bio-based additive, the non-polymer bio-based additive comprising at least one of a bio-based oil or a bio-based acid or a derivative of a bio-based oil or acid. The coupling agent formulations are capable of producing polymer matrix composites with improved strength and aging characteristics. The improved strength can be related to physical properties such as improved stiffness, toughness, or tensile strength. A masterbatch utilizing the non-polymer coupling agent formulations is provided as well as a method of making the masterbatch.

A method for forming a carbon fiber-reinforced polymer matrix composite by distributing carbon fibers or nanotubes into a molten polymer phase comprising one or more molten polymers; and applying a succession of shear strain events to the molten polymer phase so that the molten polymer phase breaks the carbon fibers successively with each event, producing reactive edges on the broken carbon fibers that react with and cross-link the one or more polymers. The composite shows improvements in mechanical properties, such as stiffness, strength and impact energy absorption.

The present application relates to composite fuselage frames and methods of manufacturing frame fillers and composite fuselage frames. A composite fuselage frame for an aircraft includes a web and a shear tie. The web includes a width and a first thickness. The web forms an arc between a first end and a second end relative to a fuselage. The width extends from an outboard side to an inboard side relative to a skin on the fuselage. A shear tie is disposed on the outboard side of the web between a first mousehole and a second mousehole and the shear tie protrudes from the first thickness of the web. The shear tie has a second thickness that extends along the skin between a first stringer and a second stringer. The second thickness of the shear tie is defined by the first thickness and a second polymer matrix composite layer formed from a first material polymer matrix composite ply that provides a frame filler integrated with a second material polymer matrix composite ply of the first thickness.

A polymeric cartridge subassembly for use in medium caliber weaponry, comprising a metallic base having a rearward surface, an open forward surface, and a coupling element therebetween. A polymeric casing is mated with the base coupling element via a coupling end, and includes a forward end opening, an opposite end, and a middle body portion therebetween. The forward end opening is adapted to receive a projectile, and the coupling end has an outer diameter less than that of the middle body portion to facilitate mating with the base coupling element. The polymeric casing is formed from a graphene-reinforced polymer matrix composite which is light-weight; producing necessary ballistics for medium caliber ammunition without deformation of the polymeric casing after firing.

The present application relates to the field of electromagnetic function composite material, and specifically discloses a kind of multilayer composite structure flexible frequency selective surface material and preparation method thereof, from top to bottom sequentially include: acrylic polyvinylidene fluoride organic polymer coating environment-resistant layer, metal oxide organic film isolation layer, ultra-high molecular weight polymer fiber reinforced polymer matrix composite film mechanics reinforcing layer, band-pass frequency selection layer, encapsulation protective layer, band-pass frequency selection layer is hexagonal / circular ring nested type band-pass frequency selection pattern array, printed by the conductive coating layer formed by conductive filler / polymer resin matrix, encapsulation protective layer is ink coating.The flexible frequency selective surface material of the present application has the characteristics of light weight, high strength, salt spray / rain / ultraviolet and other harsh environment resistance, frequency selection wave transmission multifunction, good gas barrier performance, is conducive to maintaining the shape of air hangar made of skin, ensures the normal operation of radar equipment, and has good practical engineering application value.

Provided herein are polymer matrix composites, articles including the polymer matrix composites, and methods of forming the polymer matrix composites. The polymer matrix composite includes a stitched composite and a hybrid barrier layer incorporated within the stitched composite, the hybrid barrier layer including a thin ply and a nanographene dispersed resin. The article includes a high-pressure composite cryogenic tank including the polymer matrix composite. The method includes positioning a dry thin ply between composite plies, stitching the composite plies to form a stitched preform, dispersing nanographene into the resin, and infusing the stitched preform with the modified resin.

The invention provides a flexible solar wing substrate structure and a preparation process, and belongs to the technical field of spacecraft power supply subsystems. The flexible solar wing substrate structure comprises a polyimide film layer, a flexible circuit board and at least one flexible substrate reinforcing layer made of a fiber reinforced polymer matrix composite material. The components are integrally formed through co-curing, and the flexible circuit board is embedded in the polyimide base material and has the functions of flexibility and circuit communication; the edge of the substrate is pre-bent to form a flexible hinge with a round rod, so that the folding reliability is improved; and a co-cured fiber composite reinforcing sheet can be selectively arranged to enhance the structural strength. The structure is light in weight, thin in thickness and suitable for a large-interval cold and hot circulation space environment, the manufacturing process is remarkably simplified, the size and the mass are reduced, the folding service life of the spacecraft solar wing is prolonged, and the structural stability is enhanced.

The utility model relates to pipeline engineering technical field, concretely is a kind of anti-static RTP pipe, including pipe body, the pipe body includes outer layer reinforcing layer, intermediate thermoplastic plastic layer and inner layer conductive coating, the inner layer conductive coating is evenly coated on the inner wall of intermediate layer, the conductive coating is made of carbon nanometer material and polymer matrix composite, the outer layer reinforcing layer adopts glass fiber braided structure.The metal wire net of outer layer in the device is used as electrostatic conduction channel, further guides electrostatic to grounding system, to avoid the generation of electrostatic spark, in addition, clamp connection uses conductive elastic material, ensures the conductive continuity of entire pipeline system, improves the overall anti-static reliability, the outer coating ultraviolet-resistant polyurethane protective layer can effectively resist ultraviolet aging in long-term outdoor use, further delays material aging process, pipeline has higher pressure resistance, corrosion resistance, anti-aging and sealing performance.

The invention relates to new polymer matrix composite materials developed to increase their resistance to atmospheric conditions and increase their service life by delaying aging. The invention relates to obtaining polymer matrix composite materials that are resistant to atmospheric conditions and have an increased service life, especially by containing fillers in certain proportions to preserve the mechanical properties of the material.

The embodiment of the present invention provides a method for determining the deformation amount of a roll-type unidirectional fiber-reinforced polymer-based composite material and related equipment, which can obtain the deformation strain energy W of the resin. R And the tensile deformation energy W of the fiber under compression F , the deformation strain energy W of the resin R and the tensile deformation energy W of the fiber under compression F The sum of the deformation of the rolled unidirectional fiber reinforced polymer matrix composite material is determined as follows. It can be seen that the present application can determine the deformation of the rolled unidirectional fiber reinforced polymer matrix composite material, which is helpful for optimizing multiple links such as production and transportation.

The invention provides a high-filling low-heterogeneity composite material with introduced vitrimer micro-crosslinking structure as well as a preparation method and application of the high-filling low-heterogeneity composite material with introduced vitrimer micro-crosslinking structure. According to the composite material, the vitrimer micro-crosslinking structure is constructed in a maleic anhydride grafted high-molecular polymer matrix by utilizing double-screw reactive extrusion; destructive compounding of the high-proportion silane coupling agent modified inorganic filler and a polymer matrix and damage to a vitrimer micro-crosslinked network are realized by utilizing a solid-phase shearing and grinding technology, then double-screw extrusion plasticizing granulation is utilized, and finally, the processes of forming and heterogeneity self-repairing are completed by virtue of hot press forming equipment. The characteristics of high dispersion and low heterogeneity of the inorganic filler in the polymer matrix are efficiently realized, and the synergism of functionality and mechanical properties of the highly-filled polymer matrix composite material is ensured.

An external part element or component for a timepiece or piece of jewellery made with a fibre-reinforced polymer matrix composite material, this external part element including on at least one of the faces thereof at least one cavity wherein an insert made of metallic glass is housed. A method for manufacturing such an external part element is also described.

The invention discloses a sound insulation coating system, which comprises an impedance matching layer, a coating layer, a coating layer and a coating layer, which are sequentially arranged in a composite manner, and the impedance matching layer is composed of high-density filler and an elastomer composite material and is used for reflecting sound waves to block airborne sound transmission; the damping layer is composed of hollow microspheres and a polymer matrix composite material and inhibits sound transmission of the structure through resonance scattering and viscoelastic energy consumption; the functional layer is composed of a porous sound absorption material and a resin matrix composite material and used for absorbing high-frequency sound waves and providing surface protection, by means of the implementation of the sound insulation board, through gradient impedance matching design, the 125 Hz low-frequency sound insulation index is larger than or equal to 30 dB, the 4 kHz high-frequency sound absorption coefficient is larger than or equal to 0.85, human voice frequency band noise is effectively restrained, and the sound insulation board has certain use value and popularization value.

A composite airfoil for a turbine engine, the composite airfoil having a spar core and a composite wrap that overlies a portion of the spar core. The spar core includes a spar, at least one support body, and a set of polymer matrix composite plies. The set of polymer matrix composite plies includes a first ply facing a pressure surface and a second ply facing the suction surface. The composite wrap overlies a peripheral edge of the spar core or the distal ends of at least the first and second plies of the set of polymer matrix composite plies.

The embodiment of the present application provides a method for determining the deformation of a roll-shaped orthogonal two-way fabric reinforced polymer matrix composite material and related equipment, and the deformation strain energy W of resin can be obtained R , the tensile deformation energy W of fibers under pressure F , and the correction deformation energy W generated by interaction FR The sum of the deformation strain energy W of the resin R , the tensile deformation energy W of the fibers under pressure F and the correction deformation energy W FR is determined as the deformation of the roll-shaped orthogonal two-way fabric reinforced polymer matrix composite material. It can be seen that the present application can determine the deformation of the roll-shaped orthogonal two-way fabric reinforced polymer matrix composite material, which is helpful for the optimization of multiple links such as production, transportation and the like.

The invention relates to magnetic photocatalytic m-poly[EGDMA-1-VIM]@W03 polymer matrix composite particles for use in the treatment of wastewater generated in the textile industry through adsorption and photocatalytic decolorization processes and their production method.

Methods of making a carbon-carbon composite from thermosetting polymer resin include (a) infusing bis-Schiff base resin into a carbon fiber reinforcement to form an uncured resin embedded composite, (b) positioning the uncured resin embedded composite on a substrate under a vacuum enclosure, (c) curing the bis-Schiff base resin at a first elevated temperature under vacuum to form a polymer matrix composite, (d) heating the polymer matrix composite at a second elevated temperature under inert atmosphere to form a porous carbon-carbon composite, (e) re-infusing bis-Schiff base resin into the porous carbon-carbon composite and curing under vacuum at a third elevated temperature to generate a reinfused porous carbon-carbon composite, and (f) heating the reinfused porous carbon-carbon composite at a fourth elevated temperature under inert gas to form the carbon-carbon composite. Further, the second elevated temperature and / or the fourth elevated temperature is less than 900° C.

The invention belongs to the technical field of preparation of dielectric composite materials, and particularly relates to a gradient inorganic / organic dielectric composite material and a preparation method thereof. Ion sputtering is carried out on a liquid polymer in the solution tape casting process, metal nanoparticles or metal oxide nanoparticles are successfully embedded into a polymer matrix, and the metal or metal oxide nanoparticle / polymer matrix composite material is prepared. Due to the equivalent micro-capacitance effect between the metal nanoparticles and the polymer matrix, the dielectric constant is remarkably improved; the intrinsic coulomb blocking effect of the metal nanoparticles, the wide band gap of the metal oxide and the interface barrier effect caused by gradient distribution significantly enhance the breakdown strength. The breakdown strength at room temperature, 150 DEG C and 200 DEG C is remarkably improved, and the highest breakdown strength reaches 893MV / m, 785MV / m and 719MV / m respectively. The method effectively solves the long-standing problem of filler agglomeration in the organic / inorganic nano composite material, and opens up a new way for preparing the high-performance nano composite material.