38 results about "Kevlar" patented technology

The invention discloses a boron modified Kevlar aerogel flame-retardant thermal insulation material and a preparation method thereof, a solvothermal method is adopted to prepare boron modified Kevlar initial state gel, the solvothermal method is a totally-closed reaction system, and the reaction temperature is relatively low (100-160 DEG C), so that the boron modified Kevlar aerogel sol-gel process is simple, the reaction conditions are mild, and the boron modified Kevlar aerogel flame-retardant thermal insulation material is suitable for industrial production. No environmental pollution is caused in the reaction process, and industrial production is easy to realize.

The invention provides a Kevlar nanofiber composite membrane and a preparation method thereof, and relates to the field of nanofiber composite membrane preparation. The method comprises the following steps: respectively preparing a Kevlar nanofiber dispersion liquid and PVA-co-PE nanofibers, diluting the Kevlar nanofiber dispersion liquid to obtain a Kevlar nanofiber hydrogel, mixing the Kevlar nanofiber hydrogel with the PVA-co-PE nanofibers, adding a mixed solution of water and isopropanol and a cross-linking agent, and carrying out stirring, cross-linking, suction filtration and hot pressing to obtain the Kevlar nanofiber composite membrane. The cross section of the composite film is of a compactly stacked layered embedded structure, so that the composite film has excellent mechanical strength and durability, can effectively resist external stress, and avoids mechanical damage. In addition, due to the layered structure, the composite film has good machinability, processing operations such as cutting, coating and stacking can be conveniently carried out in practical application, and various industrial and engineering application requirements can be met. The preparation method provided by the invention is simple and convenient to operate, economical and efficient, has high reproducibility and is easy to realize industrialization.

An Active Shooter Protection System (ASPS), comprising a variety of gravity-operated mechanisms for deploying one or more ballistic sheets, panels, or blankets of woven ultra-high-strength polymeric fiber (e.g., Kevlar™) directly in front of a door, such as in a school room. The deployment of a ballistic blanket is initiated by pulling down on a pull box, which activates a release that lowers down one or more segments of the ballistic blanket that is stored above a top of a door plate. The ASPS system includes means for securely locking the door shut (in addition to a dead bolt lock). The ballistic panels can include optional ceramic inserts for greater protection from high-power AR-15 rifles.

The present invention belongs to the field of flexible sensor technology, specifically relating to a capacitive pressure sensor and a dual-mode pressure sensor based on laser direct writing, as well as their preparation methods and applications. The capacitive pressure sensor comprises two identical composite electrodes; the composite electrodes are produced by secondary laser direct writing onto a PDMS layer in a resistive pressure sensor. The resistive pressure sensor comprises a Kevlar / graphene substrate layer and a PDMS layer; the PDMS layer is coated on the graphene surface of the Kevlar / graphene substrate layer; the Kevlar / graphene substrate layer is formed by laser direct writing onto the surface of a Kevlar fabric. The dual-mode pressure sensor comprises the capacitive pressure sensor and the resistive pressure sensor.

The invention relates to a low-damage secondary energy-gathered jet cutting device for a fiber composite material. Comprising a buffer protection cover, a linear cutter module, a shaped charge module and an explosive-proof body arranged between the linear cutter module and the shaped charge module. The shaped charge module consists of a plurality of micro shaped charge units which are linearly arranged, and is used for pre-puncturing a row of pre-guide holes to form a continuous stress concentration line and a crack propagation prefabricated path; and the linear cutter module is detonated in a delayed mode, and final cutting is completed along the prefabricated path. According to the method, the problems of material tearing, layering, rough cutting boundary and the like are solved through a pre-guiding-post-cutting cooperation mechanism by means of guiding of prefabricated stress concentration points and sequential control of subsequent cutting, the smoothness and quality of a cutting surface are improved, the fiber damage problem is reduced, and the production efficiency is improved. And the method has a wide application prospect in precise cutting of high-performance composite materials such as carbon fibers and Kevlar used in the fields of aerospace, rail transit, high-performance ships and the like.

The present application provides a kind of multifunctional flexible composite protective structure and preparation method thereof, the composite protective structure is from outer layer to inner layer in turn nanofiber aerogel phase change composite film (KNA / PEG), nanofiber aerogel film (KNA), silica aerogel composite fiber felt, shear hardening / kevlar (SSE / Kevlar) protective main structure, the shear hardening / kevlar protective main structure is the shear hardening precursor Kevlar prepreg stack after heat treatment obtained.The multifunctional flexible composite protective structure of the present application has very low thermal conductivity, low density, flame retardancy, low infrared emissivity, flexibility and impact protection, can block the heat of soldier human body and limit the emission of infrared thermal radiation.

The utility model discloses a lightweight high-strength communication cable, which comprises a conductor assembly, an insulating layer, a shielding layer, an enhancement layer and an outer protective layer, the conductor assembly is composed of a silver-coated copper wire, the diameter of the silver-coated copper wire is set to be 0.5 mm, the conductor assembly is of a multi-core structure composed of a plurality of silver-coated copper wires, and the outer protective layer is arranged between the plurality of silver-coated copper wires. The shielding layer is composed of a shielding layer inner layer and a shielding layer outer layer, the shielding layer inner layer is made of a silver-plated polyester film, the shielding layer outer layer is made of a woven nickel-coated aluminum metal net, the reinforcing layer is composed of a first reinforcing layer and a second reinforcing layer, the first reinforcing layer is made of Kevlar fiber braided fabric, and the second reinforcing layer is made of a Kevlar fiber braided fabric. And the reinforcing layer II is made of a high-performance polymer. Through the above structure, compared with a traditional steel or metal enhancement layer, the cable is light in weight and high in strength, the overall weight of the cable is further greatly reduced, installation and maintenance are convenient, the effect of double shielding layers is achieved, and signal integrity and anti-interference performance are guaranteed.

The present invention relates to a process for efficiently treating cold-rolled chromium-containing wastewater, and belongs to the technical field of wastewater treatment. The present invention mixes nano titanium dioxide doped with divalent iron, sodium borohydride, polyimide and sodium sulfite to prepare a composite material, and through the synergistic effect of multiple components, the hexavalent chromium in the wastewater can be effectively reduced to trivalent chromium, and removed from the wastewater by precipitation; the present invention uses Kevlar fiber as a substrate, and combines graphene oxide by physical adsorption and chemical bonding to form a stable composite membrane structure, further improves the efficiency and purification effect of wastewater treatment, reduces the chromium content in the wastewater, and makes it meet the emission standard; the present invention combines the steps of grid, regulating tank, ceramic membrane, modified nanofiltration membrane and ozone sterilization, ensures the environmental protection and high efficiency of the treatment process, and reduces the energy consumption and material consumption in the treatment process through reasonable process design and operation control, and reduces the treatment cost.

The present invention discloses a composite hydrogel marine antifouling coating, its preparation method and application, belonging to the technical field of marine antifouling coatings. The structure of the composite hydrogel marine antifouling coating includes a hydrogel adhesion layer and a metal-polyphenol network functional layer; wherein, the hydrogel adhesion layer is a Kevlar hydrogel; the metal-polyphenol network functional layer includes a polycaffeic acid hydrogel layer chelated with copper ions. Based on the Kevlar hydrogel adhesion layer, the present invention combines the synergistic antifouling effect of polycaffeic acid and metal ion copper ions. The prepared composite hydrogel marine antifouling coating is not only environmentally friendly, but also has excellent antifouling performance against proteins, bacteria and algae.

According to the silicon modified Kevlar aerogel and the preparation method thereof, a silicon element is introduced into the Kevlar aerogel (fourth step), so that the characteristic of low thermal conductivity of the Kevlar aerogel is ensured, and a silicon dioxide layer can be formed in the combustion process of the Kevlar aerogel; the silicon dioxide layer not only can effectively isolate the contact between the material and external oxygen, but also can effectively prevent external high-temperature heat from being transferred into the material and prevent the material from being further decomposed or combusted, so that the flame retardant property of the Kevlar aerogel is improved.

The utility model relates to the technical field of insulation blankets, and discloses a high-temperature-resistant insulation blanket which is integrally of a rectangular plane structure and comprises reticulated cloth and a silicon rubber layer covering the outer surface of the reticulated cloth in a coating mode. The reticulated cloth is of a rectangular plane structure formed by weaving a plurality of transverse fibers and a plurality of longitudinal fibers, and each of the transverse fibers and the longitudinal fibers comprises an elastic body wrapping sleeve and three fiber assemblies located in the elastic body wrapping sleeve. According to the high-temperature-resistant insulating blanket, the Kevlar fiber materials are adopted as the transverse fibers and the longitudinal fibers and are woven to form the reticulated cloth, so that the high-temperature-resistant insulating blanket has high strength, high modulus and excellent anti-fatigue performance, the whole structure of the insulating blanket is firmer and more durable, the whole strength of the insulating blanket is improved, the stretching resistance and the tearing resistance are enhanced, and the service life of the insulating blanket is prolonged. The service life is prolonged; the high-temperature silicone rubber layer coated on the reticulated cloth not only has good high-temperature resistance, but also provides an excellent insulation effect, reduces the risk of current or voltage leakage, and can keep elasticity under a high-temperature condition at the same time.

The present invention discloses a multi-strand silver braided wire with tensile and fracture resistance, comprising a glass fiber core wire, a copper core and an insulating sheath, wherein the glass fiber core wire and the copper core are arranged inside the insulating sheath, and the outer circumferential side of the copper core is plated with a metallic silver layer. The multi-strand silver braided wire with tensile and fracture resistance can improve the tensile and fracture resistance through the external insulating sheath, and the addition of polyaryl phosphate in the insulating sheath can improve the heat resistance, wear resistance and flame retardancy, and form an efficient heat conduction network through the mixed dispersion of boron nitride and aluminum oxide, improve the thermal conductivity, and ensure the heat dissipation efficiency, while the addition of maleic anhydride grafted polyolefin can effectively improve the toughness, and the tensile strength is improved by using the reinforcing core of Kevlar fiber, and the twisted braiding process is combined, so that the wire has the physical properties of ensuring tensile resistance, high thermal conductivity, flame retardancy and high toughness, effectively preventing fracture and extending the service life, and reducing the damage and discarding rate, thereby reducing pollution to the environment, which is beneficial to environmental protection.

To provide a system and a method for a multi-layer peel-away sheath assembly for insertion of a blood pump including a sheath body.SOLUTION: A sheath body comprises multiple layers including a reinforcing layer 320. The reinforcing layer improves flexibility and kink resistance of the assembly. The reinforcing layer can comprise LCP, PEBAX, stainless steel, Nitinol, or Kevlar(R). The reinforcing layer may be a laser-cut hypotube or a braided or coiled filament. A first layer material and a third layer material are thermoplastics, including PEBAX or TPU. The reinforcing layer has at least one of discontinuous parts 322, 324, which is aligned with peel-away lines in the sheath body to allow an operator to peel-away the assembly. The peel-away lines are formed of inner, outer notches, or both.SELECTED DRAWING: Figure 3B

1. Name of the product in this design: Scissors (Kevlar). 2. Purpose of this design: Cutting paper. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The aramid fiber self-adaptive wrapping interception structure is made of dual-modulus Kevlar fabric and can automatically contract in the radial direction under the impact of a high-speed conical penetration body, encircle a conical surface and form self-locking, and slippage, penetration and secondary damage of the penetration body are effectively prevented. The structure is flexible, lightweight and comfortable to wear, can be independently used or compounded with a shape memory alloy protection plate to form an efficient double-layer bulletproof system, and is suitable for mass production application of military police bulletproof equipment.

1. The name of the product of this design: Ski hip shorts (Kevlar KFLHT02). 2. Purpose of this design product: shorts for wearing during exercise. 3. The key design point of this design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. Other circumstances requiring clarification: The white model is used to display the product and is not within the scope of protection of this design.

1. Name of the designed product: cutter (Kevlar aramid). 2. Use of the designed product: for cutting. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view.

1. The name of the design product: protective shell (Kevlar anti-falling shell). 2. The use of the design product: for protecting mobile phones. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

A safety device for a breaker hammer is provided to enhance safety by preventing stray debris from flying out during operation and causing injury or damage within the operating environment. The cover device comprises multiple layers: EPDM heavy-duty rubber as a base, 304 stainless steel woven wire net for filtration and heat resistance, heavy-duty filter fabric for additional particle capture, and Kevlar fabric for impact resistance. These layers are bonded together and secured around the hammer with ratchet tie-down straps. This protective cover ensures debris containment, reduces the risk of injury and property damage, and allows construction work to proceed safely in high-traffic areas. The device's design balances durability, flexibility, and ease of installation, making it suitable for various construction settings.

The utility model relates to the technical field of cables, in particular to a high-strength flexible cable with an aluminum alloy core for an offshore oil platform, which comprises a plurality of aluminum alloy cable conductors, a plurality of monofilaments are arranged in the aluminum alloy cable conductors, the diameter of each monofilament is not more than 0.31 mm, and the aluminum alloy cable conductors are arranged in the aluminum alloy cable conductors. The surface of each aluminum alloy cable conductor is fixedly sleeved with an elastomer high-pressure ethylene-propylene insulating layer, Kevlar high-strength reinforcing cores are arranged among the multiple aluminum alloy cable conductors, the outer sides of the multiple aluminum alloy cable conductors are sleeved with a waterproof isolation layer, and the outer side of the waterproof isolation layer is provided with an armor layer. According to the utility model, the aluminum alloy cable conductors, the elastomer high-voltage ethylene-propylene insulating layers, the Kevlar high-strength reinforced cores, the waterproof isolating layer, the armor layer and the waterproof elastomer polymer sheath are arranged, so that the cost of the cable can be effectively reduced, and the weight of the cable can be reduced; the cable has the advantages of low overall material cost, excellent mechanical performance, convenience in laying, high system operation safety and the like.

1. The name of the design product: mobile phone protective shell (Kevlar star river series). 2. The use of the design product: for protecting and decorating mobile phones. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective view.

A protective shirt designed to prevent puncture and abrasion injuries while maintaining comfort, flexibility, and a professional appearance. The shirt includes a multi-layer fabric construction comprising an outer layer of spacer fabric for cushioning, a middle layer of puncture-resistant material such as para-aramid fibers (e.g., Kevlar®), and an inner layer of soft jersey knit fabric for skin comfort. The shirt features long sleeves with integrated cuffs and thumb openings, a front yoke with a zipper for easy wear, and strategically positioned breathable mesh panels at the underarms and back for temperature regulation. Suitable for medical professionals, educators, mental health providers, and individuals with autism or other conditions that may lead to self-injury, the shirt combines protection with aesthetics and mobility. It may be worn in clinical, educational, and everyday settings without drawing unwanted attention, offering both safety and discretion.

The utility model provides a UTP cable of a vehicle sliding door. The UTP cable sequentially comprises twisted pair wire cores, a filling layer, a polyester belt and a sheath from inside to outside. Each wire core comprises a conductor and an insulating layer wrapping the periphery of the conductor; the conductor is formed by twisting 19 strands of wires; each strand of lead is formed by twisting seven aluminum coating basalt fibers with the diameter of 23 microns; the insulating layer is made of a PP material; and the sheath is made of a modified TPE-S material. And the filling layer is made of 500D NY (Nitrogen Yarn) wires or Kevlar (Kevlar). The diameter of the conductor is 0.13 mm < 2 >. The UTP cable provided by the utility model has the characteristics of high tensile strength, bending resistance and reciprocating motion resistance.

Waterproof covers for prosthetics. The waterproof cover may be used with a prosthetic hand or other prosthetics or orthotics. The waterproof cover protects the interior components of the prosthetic. The cover may be flame-resistant. The cover may include two layers. An example cover may have an external layer of fabric knitted from aromatic polyamide (meta-aramid) fiber such as NOMEX® yarn and an interior polyurethane or silicone layer. Another example cover may have a single layer, made of woven aromatic polyamide fiber such as NOMEX or Kevlar® with a silicone coating on one or both sides. For a prosthetic hand, the cover may extend between a thumb and a palm.

The utility model discloses a dynamic application data transmission cable for a humanoid robot body. The filling strip is located in the center of the cable, the four signal transmission core wires are arranged around the filling strip as the center to form the star-quad cable in a surrounding mode, the cable is coated with an aluminum-plastic composite belt, the aluminum-plastic composite belt is coated with a tinned copper foil wire braid layer, and the tinned copper foil wire braid layer is coated with a PUR outer sheath. According to the utility model, the distribution of the data signal core wires is reasonably arranged, and the FEP insulating material has high tensile strength, excellent wear resistance and fatigue resistance. The Kevlar and the thermoplastic elastomer can provide stable signal transmission and play a role of a central tensile element. The tinned copper foil wires have good tensile and torsional performance and small hardness, the situation that broken wires pierce the core wires to affect signal transmission can be avoided, and the PUR sheath has good flexibility and elasticity, is not prone to being broken or twisted off and can adapt to a smaller bending radius of a narrow space of the humanoid robot.

The utility model discloses a buckle type dual density foaming helmet, the foaming helmet comprises a foaming polypropylene EPP shell, a foaming polystyrene EPS shell, an aramid fiber KEVLAR fiberboard and a buckle structure, the middle area of the EPP shell is provided with an opening area, the EPS shell is installed in the opening area, and the KEVLAR fiberboard is attached to the top of the EPS shell; a buckle structure is arranged between the EPP outer shell and the EPS outer shell, the EPS outer shell is installed in the opening area based on the buckle structure, the aramid fiber KEVLAR fiber board is attached to the top of the EPS outer shell, impact force can be effectively absorbed and dispersed, the protection performance of the helmet can be remarkably improved, and the safety performance of the helmet is improved. A buckle structure is arranged between the EPP shell and the EPS shell, installation of the EPP shell and the EPS shell is achieved through the buckle structure, and according to the technical scheme, the problems that according to a dual-density combined type foaming helmet, glue attachment is not environmentally friendly, aging and falling are prone to occurring, and the structure is complex are solved.

A multi-functional mobile flexible cable and a preparation method. The multi-functional mobile flexible cable comprises a cable core formed by stranding a power core, a control core and a network core. An anti-tensile filling strip is arranged in the cable core, and an inner sheath layer, a Kevlar braided layer and an outer sheath are sequentially arranged outside the cable core. The power core comprises a power conductor, the power conductor is coated with a power ethylene propylene diene monomer (EPDM) rubber insulation layer, a power Kevlar braided layer is arranged outside the power EPDM rubber insulation layer, a power liquid silicone rubber coating is arranged outside the power Kevlar braided layer, a control Kevlar braided layer is arranged outside the control core, a control liquid silicone rubber coating is arranged outside the control Kevlar braided layer, a network Kevlar braided layer is arranged outside the network core, and a network liquid silicone rubber coating is arranged outside the network Kevlar braided layer, which can meet the transmission of cable power, network signals and control signals, and improve the bending resistance, torsion resistance and winding resistance of the cable, thereby improving the service life of the cable.

1. Name of the design product: Mobile phone case (Kevlar). 2. Use of the design product: A mobile phone case for protecting a mobile phone. 3. Design key points of the design product: The combination of shape and pattern. 4. Picture or photo that best shows the design key points: 3D view 1 of Design 1. 5. Design 1 is designated as the basic design. 6. Other circumstances that need to be explained: Other explanations: The enlarged view of part A of Design 1 is a partial enlarged view of part A of the front view of Design 1; the enlarged view of part B of Design 1 is a partial enlarged view of part B of the front view of Design 1; the enlarged view of part C of Design 1 is a partial enlarged view of part C of the front view of Design 1; the enlarged view of part D of Design 1 is a partial enlarged view of part D of the front view of Design 1.

The present invention discloses a tensile-resistant Kevlar dual-core plastic optical cable assembly, an assembly jig and a method, wherein a Kevlar fiber layer is arranged in the gap between the two inner sheaths of the dual-core plastic optical cable, and one layer or both upper and lower sides can be arranged according to the strength requirements of use, thereby improving the tensile resistance and impact resistance of the optical cable. The assembly jig of the present invention uses corresponding ridges and grooves in the upper mold and the lower mold to stamp the clamping tailstock of the optical fiber connector to deform it, thereby clamping and fixing the plastic optical fiber sleeved in the clamping tailstock and the optical fiber connector; and the stamping assembly of the assembly jig is automated production, which can improve production efficiency while ensuring product consistency.

The invention provides a multifunctional flexible composite protection structure and a preparation method thereof, and the composite protection structure sequentially comprises a nanofiber aerogel phase change composite film (KNA / PEG), a nanofiber aerogel film (KNA), a silicon dioxide aerogel composite fibrofelt and a shear hardening / aramid fiber (SSE / Kevlar) protection main body structure from the outer layer to the inner layer, the shear hardening / aramid fiber protection main body structure is obtained by stacking a plurality of layers of shear hardening precursor Kevlar prepregs and then carrying out heat treatment. The multifunctional flexible composite protection structure disclosed by the invention has the advantages of extremely low heat conductivity coefficient, low density, flame retardance, low infrared emissivity, flexibility and impact protection, and can block heat of soldier bodies and limit infrared heat radiation emission.