1338results about How to "Improve flexibility" patented technology

The invention provides a high-temperature-resistant carbon fiber reinforced phenolic resin composite material and a preparation method thereof. The preparation method comprises the following steps: firstly, carrying out high-temperature oxidation treatment on carbon fibers; secondly, carrying out surface modification on the carbon fibers by using a chemical modifier; then mixing the modified carbon fiber, an antioxidant and a dispersing agent to prepare slurry; performing vacuum filtration on the prepared slurry, and drying to obtain a carbon fiber blank; preparing a phenolic resin infiltration solution, and impregnating the carbon fiber blank with the phenolic resin infiltration solution; and finally, carrying out mold pressing and curing to obtain the high-temperature-resistant carbon fiber reinforced phenolic resin composite The preparation method is simple in required equipment, convenient to operate, stable in process, high in production efficiency and suitable for large-scale industrial production. According to the high-temperature-resistant carbon fiber reinforced phenolic resin composite material prepared by the preparation method, the bonding property between the carbon fiber and the phenolic resin is improved, certain toughness and strength are provided, and meanwhile, the high-temperature-resistant carbon fiber reinforced phenolic resin composite material has the advantages of ablation resistance, good oxidation resistance in a high-temperature environment and the like.

The invention relates to an anti-ant large-core-number fiber ribbon cable comprising a cable core and an outer sheath. The cable core includes loose tubes; and fiber ribbons are sleeved inside the loose tubes. The outer sheath is an outer nylon sheath; and a non-metallic reinforcement layer is arranged between the outer sheath and the cable core. According to the anti-ant large-core-number fiber ribbon cable provided by the invention, with the outer nylon sheath, ants can not bite the sheath, so that the damages on the optical cable by ant biting in a pipe at an area with a serious anti problem are prevented, the normal state of the cable is ensured, and the application region of the cable is extended. The cable based on a simple and reasonable structure has advantages of small cable diameter, high fiber density, large fiber capacity, and low duty ratio and can be laid in a pipe conveniently; and the bending performance is good. During branched connection, 4 to 24 fibers can be melted once, so that the construction time is saved and the manpower cost is lowered, and the construction efficiency is improved. On the basis of the full drying type dielectric structure, branched connection is realized conveniently and usage becomes convenient.

The invention discloses a low-temperature-resistant heat-insulating composite material and a preparation method thereof, and relates to the technical field of composite materials, and the material comprises an outer protective layer, a middle reinforcing layer and an inner heat insulating layer. The inner heat insulation layer is composed of aerogel, polytetrafluoroethylene micro powder and the like, and good heat insulation performance is provided. The middle reinforcing layer contains ethylene-propylene rubber and the like, so that the material is endowed with elasticity, mechanical strength and flame retardance. And the outer protective layer is made of PVC resin and the like, so that the overall strength and wear resistance are enhanced. The low-temperature-resistant anti-cracking additive is prepared from polyimide resin and the like, so that the anti-cracking performance is improved. The modified filler is prepared through a specific method, and the material performance is improved. During preparation, all the layers are prepared respectively and then subjected to hot-pressing compounding. The internal mixer control system guarantees preparation parameter control of the middle enhancement layer, and a PID control algorithm is adopted. The composite material has the advantages of reasonable structural design, synergistic effect of all layers, mature preparation method and process, excellent performances of low temperature resistance, heat insulation, cracking resistance and the like, and is suitable for being applied to various low-temperature environments.

The invention discloses a well industrial and mining unmanned driving simulation test method based on cluster hardware-in-the-loop, and relates to the field of unmanned driving simulation, and the method comprises the steps: constructing a simulation environment of an operation map; building a cluster hardware-in-the-loop simulation system on the constructed operation map simulation environment, and simulating an ore drawing machine, a draw shaft, a transport vehicle and a carry-scraper on the simulation system; when a plurality of loading points or unloading points exist in the constructed operation map simulation environment, calculating an optimal loading point, an optimal unloading point and an optimal driving route of each transport vehicle to realize transport vehicle scheduling simulation; the cluster hardware-in-the-loop simulation system adopts a distributed calculation architecture to perform parallel simulation calculation on a plurality of ore drawing machines, draw shafts, carry-scrapers and transport vehicles. Aiming at the low simulation test efficiency of the underground unmanned vehicle in the prior art, the underground simulation test efficiency is improved.

The invention relates to the technical field of flexible display devices, in particular to a high-impact-resistance coating for ultra-thin glass, a preparation method and an assembly layer. The invention discloses a high-impact-resistance coating for ultra-thin glass. The high-impact-resistance coating is mainly prepared from a precursor, a cross-linking agent and a photoinitiator in a solvent-free condition in a UV curing manner, the precursor comprises a polyether urethane acrylate oligomer with Tg of-70 DEG C to-40 DEG C; the Tg of the coating is 30-60 DEG C; and in a temperature scanning test with the temperature range of-40 to 80 DEG C and the frequency of 1Hz, the peak value of the loss factor of the coating is 0.7 to 1.2. The high-impact-resistance coating provided by the invention has good adhesion and excellent optical performance, also has good elongation at break and good flexibility, has a high dissipation effect on mechanical stress, and can enhance the impact resistance of the ultra-thin glass. In addition, the high-impact-resistance coating is prepared through a UV photocuring method and does not contain a solvent, the VOC emission in the production and preparation process is low, and the coating is green and efficient.

The invention relates to the technical field of fabrics, and discloses a preparation method of a high-elastic anti-wrinkle blended fabric, which comprises the following steps: adding sodium carbonate, an organosilicon quaternary ammonium salt triazine finishing agent and a cotton / spandex blended fabric into water, soaking, then soaking and rolling twice, washing, and then pre-drying and baking to obtain the high-elastic anti-wrinkle blended fabric. The finishing agent contains cyanuric chloride groups, active chlorine atoms of the cyanuric chloride groups can react with hydroxyl groups of the cotton fabric, so that the finishing agent is connected to the surface of the blended fabric through stable chemical bonds, meanwhile, the finishing agent contains a large number of amido bonds, and the amido bonds and carbamate groups of spandex fabric form hydrogen bond interaction, so that the finishing agent can be used for finishing the cotton fabric. The finishing agent can be firmly attached to the surface of the blended fabric and has good washing resistance, the finishing agent is not prone to falling off after multiple times of washing, and the fabric still has high wrinkle recovery angle, moisture regain and good hand feeling and keeps good wrinkle resistance, hydrophilic performance and soft and elastic hand feeling.

The high-speed air-blowing type precision seeder comprises a seeder transverse frame, a connecting front frame is fixedly mounted in the middle of one side of the seeder transverse frame, a mounting top plate is fixedly connected to the middle of the top end of the seeder transverse frame, and a power generation assembly is mounted at the end of one side of the mounting top plate in an embedded mode; a negative pressure fan assembly is embedded in the middle of the other side of the mounting top plate, a long air guide pipe is fixedly connected to the top of one end of the negative pressure fan assembly, and a protective top cover is clamped to the edge of the top end of the long air guide pipe. According to the corn seed conveying device, the phenomenon that corn seeds are damaged due to mechanical shearing in the conveying process is effectively prevented, it is ensured that the corn seeds can be completely planted into a field, the germination rate of the corn seeds after sowing is increased, and the use performance of a sowing machine is improved.

The invention belongs to the field of electrode paste preparation, and provides low-temperature curing silver-coated copper paste for a heterojunction solar cell and a preparation method of the low-temperature curing silver-coated copper paste. Ethyl cellulose is adopted as a matrix material, a stable matrix network is provided for slurry through good cohesiveness and dispersity of ethyl cellulose, and a network structure with a high crosslinking degree is formed by adding modified phenolic resin, organic silicon modified epoxy acrylate and other chemical modification materials into the slurry. The mechanical strength and adhesive force of the slurry are further enhanced, surface modification is carried out on inorganic filler such as silver-coated copper powder and bismuth oxide through a silane coupling agent and a titanate coupling agent, and the interface bonding force between the filler and an organic matrix is enhanced through silicon-oxygen bonds formed on the surface of the filler; by adding the carboxylated polyamide wax and the organic bentonite, the agglomeration tendency of the filler is reduced by utilizing the adsorption and electrostatic repulsion effects of the carboxylated polyamide wax and the organic bentonite on filler particles, and the obtained conductive slurry has the characteristics of excellent conductivity and low-temperature rapid curing.

The invention discloses liquid crystal polyimide aerogel with excellent shape memory performance and a preparation method of the liquid crystal polyimide aerogel, and belongs to the field of polymer aerogel materials. According to the liquid crystal polyimide aerogel with the excellent shape memory performance, the shape fixing rate is larger than or equal to 99%, and the shape recovery rate is larger than or equal to 97%; the heat conductivity at the room temperature is larger than or equal to 0.09 W m <-1 > K <-1 >; specifically, liquid crystal diamine, flexible diamine, a liquid crystal dianhydride monomer and a thermal curing agent are subjected to a reaction and solvent replacement, and polyamide acid dry filaments are obtained; and forming an aqueous solution from the dry polyamide acid filaments, injecting the aqueous solution into a silica gel mold, carrying out directional freezing casting on a customized freezing circulating device with a copper plate at the top, and carrying out freeze drying, thermal imidization and curing after molding, so as to obtain the liquid crystal polyimide aerogel with excellent shape memory performance.

The invention relates to the field of thermal insulation materials, and provides a wet-process ceramic nanofiber thermal insulation material and a preparation method thereof.The wet-process ceramic nanofiber thermal insulation material is prepared from, by weight, 50-70 parts of ceramic nanofiber, 15-25 parts of modified glass fiber, 5-15 parts of inorganic functional filler, 4-10 parts of dispersing agent and 2-6 parts of adhesive; and 200 to 300 parts of deionized water. The wet-process ceramic nanofiber thermal insulation material provided by the invention has the characteristics of high strength, high flexibility and high thermal insulation property, and has better commercial application value.

The invention provides a flexible nodular electrode and an electrochemical mechanical composite finishing method for an inner channel, and belongs to the technical field of electrochemical mechanical composite machining. The flexible nodular electrode comprises a plurality of similar nodular units, and each nodular unit comprises an electrode conductive substrate, a universal joint, a porous insulating layer and insulating soft abrasive particles. The adjacent nodal units are hinged through the universal joints, and good flexibility is achieved. The insulating layer on the surface of the conductive substrate of the electrode is made of loose and porous sponge, and an electric field line and electrolyte can penetrate through the insulating layer, so that an electrochemical effect is generated between the conductive substrate and the complex inner channel, and meanwhile, short-circuit burn caused by contact between the conductive substrate and the surface of the complex inner channel can be avoided; the insulating soft abrasive particles are embedded outside the insulating layer, so that a mechanical scraping effect can be applied to a complex inner channel in the machining process, and a passive film generated on the surface of a workpiece is ground away. During polishing, the electrode reciprocates, and complex inner channel polishing is completed under the composite action of electrochemical and mechanical scraping.

The invention relates to the field of shielding materials, and provides lead-free rubber with ionizing radiation shielding performance and a preparation method thereof, and the lead-free rubber is mainly prepared from barium titanate / boron nitride composite filler, barium tungstate / boron carbide composite filler, tungsten powder, bismuth powder, a rubber matrix and an auxiliary agent according to a proportion. The barium titanate particles are uniformly loaded on the surface of the flaky boron nitride, so that the gamma ray and X ray shielding performance is improved, and meanwhile, the boron nitride provides excellent neutron shielding capability; barium tungstate particles are loaded on the surfaces of the boron carbide nanowires to form a multi-scale shielding network, and the shielding effect of neutrons and ionizing radiation is remarkably enhanced. The rubber matrix endows the material with excellent flexibility and mechanical properties. By scientifically optimizing the component proportion and the preparation process, the problems that a traditional high-density shielding material is prone to agglomeration, poor in flexibility and the like are solved, and the material shows excellent performance in the fields of gamma ray, X ray and neutron shielding and is suitable for the fields of nuclear energy, medical protection, industrial radiation protection and the like.

The invention discloses low-temperature-resistant perfluoroether rubber and a preparation method thereof, and the low-temperature-resistant perfluoroether rubber comprises the following raw material components in parts by weight: 80-120 parts of a perfluoroether rubber polymer, 1-5 parts of an additive, 10-30 parts of a filler, 1-3 parts of a cross-linking agent, 1-4 parts of an accelerant, 1-3 parts of a processing aid and 1-3 parts of an acid acceptor. The perfluoroether rubber polymer is prepared through a two-step polymerization method, and then the perfluoroether rubber polymer and all the mixed auxiliary materials are mixed and mixed to prepare the low-temperature-resistant perfluoroether rubber. The perfluoroether rubber provided by the invention not only has relatively high hardness, tensile strength, extrusion deformation resistance, shearing resistance and low temperature resistance, can meet the use requirement of the perfluoroether rubber at-40 DEG C, but also has excellent plasma etching resistance, and can be applied to the semiconductor industry.

The invention discloses a preparation method of a green and environment-friendly novel optical / electric heating effect anti-icing and deicing coating, and belongs to the field of preparation of anti-icing coatings. The invention aims to solve the problems of low deicing efficiency, poor wear resistance, environmental pollution and complex preparation technology of the existing super-hydrophobic material with the photo-thermal electric heating function. The method comprises the following steps: 1, preparing an anti-icing and deicing coating solution; and 2, preparing the anti-icing and deicing coating. The preparation method is used for preparing the green and environment-friendly novel optical / electric heating effect anti-icing and deicing coating.

The invention relates to the field of waterproof sealing materials, and discloses a composite high-weather-resistance rubber waterstop which is composed of an outer layer, a middle layer and an inner layer. The outer layer contains 3%-8% of nano titanium dioxide, 2%-5% of nano zinc oxide, 50%-70% of a rubber matrix and 1%-3% of an ultraviolet light absorber, and the total proportion of the outer layer is 10%-20%. The middle layer is composed of 70%-85% of EPDM, 5%-10% of carbon fiber and 5%-10% of plasticizer, and the total proportion of the middle layer is 60%-75%. The inner layer is a dynamic covalent bond rubber material and contains 5%-10% of a vulcanizing agent and 1%-3% of an antioxidant, the rubber material accounts for 80%-90%, and the inner layer accounts for 15%-25% in total. Through a multi-layer composite structure, a dynamic covalent bond self-repairing material and an optimized vulcanization process, the comprehensive performance of the water-stop belt is remarkably improved, and particularly the durability and the service life of the water-stop belt in a long-term exposure environment are improved.

The invention relates to the technical field of manipulators, in particular to an under-actuated rigid-flexible coupling manipulator. Comprising a plurality of movable knuckles which are connected in series, and each knuckle is provided with a porous mounting part; the flexible contact part is provided with a plurality of flexible microstructures, and each flexible contact part is embedded into the porous mounting part of each knuckle through the corresponding flexible microstructure. According to the under-actuated rigid finger, the adjustable flexible structure is arranged on the under-actuated rigid finger, the flexibility in the grabbing process is improved by adjusting the flexible structure in the grabbing process, so that the under-actuated rigid finger is suitable for grabbing fragile or soft objects, and the adaptability of the rigid-flexible coupling manipulator is improved. The flexible microstructures are connected into the porous mounting parts of the knuckles in an embedded mode, the rigid-flexible coupling connection toughness between the knuckles and the flexible contact parts is guaranteed, the compliance of the manipulator is improved, and the manipulator has the load capacity, controllability and flexibility in cooperation with cooperative driving of the under-actuated structure and the pneumatic structure.

The invention relates to a waist hanging type three-wheel moped based on multi-sensor data fusion driving. Comprising a wearing waistcoat, a button buckle device, a traction device, a middle rotating device, a wheel leg device, a vehicle body fixing frame, an integrated control box and a driving rear wheel. The wearable waistcoat is connected with the middle rotating device through a button buckling device and a traction device, and two driving rear wheels are symmetrically arranged on the two sides of the bottom of the vehicle body fixing frame; an inertial measurement unit IMU is arranged on the wearing waistcoat, a wheel leg driving motor is provided with an absolute value encoder, a wheel leg knee joint torque sensor is arranged in a wheel leg device, a driving rear wheel torque sensor is arranged on an inner side shaft of a driving rear wheel, and a rotating speed encoder is arranged between a driving rear wheel shell and the driving rear wheel torque sensor. The control flexibility is improved, interference to human body movement is reduced, the wheel speed of the driving rear wheel can be adjusted in real time along with the human body movement, the wheel leg driving joint angle is adjusted in real time according to the road condition change, damage to the human body is reduced, and adaptability is improved.

The invention provides a flexible nano thermal insulation material and a preparation method and application thereof, and the preparation method of the flexible nano thermal insulation material comprises the following steps: mixing low-heat-conductivity-coefficient powder, a fibrosis adhesive and an optional additive, carrying out ball milling to obtain floccule, and rolling the floccule into a film-shaped flexible nano thermal insulation material. According to the invention, the low-thermal-conductivity powder is cross-linked, fixed and rolled to form the flexible film by using the fibril formed by the fibrillating adhesive, so that the pore structure of the low-thermal-conductivity powder is maintained without introducing the adhesive with high thermal conductivity for forming; therefore, the low heat conductivity coefficient of the powder is kept, and meanwhile, the powder has good processing formability. The prepared flexible nano heat insulation material has excellent flexibility, heat insulation performance and certain tensile and compression performance, and can be widely applied to the fields of aerospace, constructional engineering, shipbuilding, automobile manufacturing and the like.

The invention discloses polylactic acid polyol as well as a preparation method and application thereof. The preparation method comprises the following steps: performing a heating reaction on zinc salt, organic ammonium salt and bis (ethylene carbonate) ether to prepare an in-situ catalyst; anions of the organic ammonium salt are selected from any one of bromide ions, chloride ions and iodide ions; and adding a lactide monomer, and carrying out polymerization reaction to obtain the polylactic acid polyol. The polylactic acid polyol prepared by the invention has a flexible chain segment, can provide better flexibility, and can be applied to preparation of a polyurethane material.

The invention provides a silicon-based negative pole piece and a lithium ion battery comprising the same, and relates to the technical field of lithium ion batteries. Comprising a negative electrode current collector, a second active material layer arranged on at least one surface of the negative electrode current collector, and a first active material layer arranged on the surface of the second active material layer. The design of the two active material layers ensures high energy density, and meanwhile, the formula design is optimized by combining the bonding characteristic of the interface layer, so that large internal stress is prevented from being generated in the charging and discharging process; the organic porous cross-linked polymer is applied to the negative pole piece, and the polymer is loose and porous and can be subjected to cross-linked polymerization in a high-temperature process, so that negative pole particles are tighter, expansion of a silicon negative pole in a charging and discharging process can be buffered, and stripping and cracking of the pole piece are prevented.

The invention discloses a foot-ground contact force estimation and terrain classification method of an ostrich-imitating robot. The method comprises the steps that a foot-ground contact force mapping matrix of the ostrich-imitating robot is constructed, force-position hybrid control is carried out, foot-ground contact force is obtained according to the matrix and input torque of a plate spring to a passive joint, and terrain classification information is obtained after the ground contact state is judged; establishing a terrain classification fusion model based on a weighted voting mechanism, and training the model according to terrain classification information; and performing terrain classification according to the terrain classification information and the trained model. The foot-ground contact force is estimated through the joint corner information of the robot, no extra sensor needs to be installed, real-time and accurate foot-ground contact force estimation and contact state obtaining are achieved, the problem that the performance of an ostrich-imitating robot system is reduced or fails due to the fact that a force sensor is prone to being damaged is effectively solved, system configuration is simplified, and the system reliability is improved. Foot-ground contact force estimation and accurate terrain classification of the ostrich-imitating robot can be completed without depending on an external sensor.

The invention provides an optical transparent flexible electromagnetic wave-absorbing metamaterial, and relates to the technical field of wave-absorbing materials, the electromagnetic wave-absorbing metamaterial comprises a plurality of wave-absorbing units arranged periodically, and the wave-absorbing units are made of optical transparent materials; each wave absorbing unit comprises a dielectric compensation layer, a first resonance layer, a first dielectric layer, a second resonance layer, a second dielectric layer and a reflecting layer which are sequentially arranged from top to bottom; the dielectric compensation layer is used for expanding an absorption frequency band and improving the stability of an incident angle; the first resonance layer is used for adjusting a first resonance frequency point of a reflectivity curve; the second resonance layer is used for adjusting a second resonance frequency point of the reflectivity curve; the first dielectric layer and the second dielectric layer are used for consuming electromagnetic energy; and the reflecting layer is used for reflecting redundant electromagnetic energy back to the electromagnetic wave-absorbing metamaterial for loss again. The light-transparent flexible electromagnetic wave-absorbing metamaterial provided by the invention has the advantages of flexibility, high light transmittance, good broadband wave-absorbing performance and oblique incidence angle stability.

The invention relates to the field of cutting devices, and discloses a noise reduction cutting device for metal part manufacturing, which comprises two bottom rails, a concave frame capable of sliding to adjust the position is arranged at the tops of the two bottom rails, a transverse moving structure is arranged at the top of the concave frame, and an up-down displacement structure is arranged at the lower end of the transverse moving structure. The lower end of the up-down displacement structure is connected with a laser cutting head, precise positioning of the laser cutting head in the horizontal direction can be achieved through sliding fit of a bottom rail and a concave frame and a transverse movement structure at the top of the concave frame, a second motor drives a first gear to be in meshing transmission with teeth, and the transverse movement distance of a motor sliding table can be precisely controlled. Therefore, the laser cutting head can conduct high-precision cutting on the metal piece according to the preset cutting path, good contour precision can be guaranteed when the metal piece in a complex shape is machined, machining errors are effectively reduced, and the product quality is improved.

The present invention belongs to the field of flexible electronics, and specifically is a flexible polymer ultrasonic probe. The flexible polymer ultrasonic probe of the present invention is a multi-layer structure, which includes a shielding layer, a backing layer, an upper electrode, a piezoelectric layer, a lower electrode, a matching layer, and a coupling layer from top to bottom; all functional layers are made of polymers and their composite materials, have very good flexibility, and can withstand complex deformations such as bending and twisting. The flexible polymer ultrasonic probe can emit ultrasonic waves under the excitation of electrical signals as an ultrasonic transmitting unit, and can also collect ultrasonic signals as an ultrasonic receiving unit. The flexible polymer ultrasonic probe can be made into a patch for industrial flaw detection of irregular surface objects and long-term health monitoring of the human body. For example, based on the ultrasonic Doppler principle, long-term continuous monitoring of blood flow velocity in human blood vessels can be achieved.

The invention belongs to the technical field of new materials, and particularly relates to a PEDOT electromagnetic shielding polymer film, a preparation method and application, a substrate coated with an oxidizing agent solution is subjected to a polymerization reaction in steam containing an EDOT monomer, then an oxidizing agent is removed, drying is performed, and the PEDOT electromagnetic shielding polymer film is obtained; the oxidant solution comprises ferric salt, an additive and water, and the additive is one or more of polyvinyl alcohol, polyvinylpyrrolidone, starch, polyethylene glycol and a polyoxypropylene polyoxyethylene copolymer; the PEDOT electromagnetic shielding polymer film provided by the invention has relatively high density and lower resistance, and can improve the electromagnetic shielding effect.

The invention relates to the technical field of fibers, in particular to a PTT / PA eccentric core-sheath composite fiber and a preparation method thereof. The comprehensive performance of the fiber is remarkably improved through eccentric structure design and introduction of an alkyl chain into a PA sheath layer to modify PA. The composite fiber is composed of a PTT core layer and a PA sheath layer, the sheath layer contains alkyl chain modified PA, and the fiber shows excellent breaking strength, curling performance and thermal stability. The eccentric structure effectively disperses stress, brittle fracture is avoided, meanwhile, the alkyl chain modified PA enhances the flexibility and interface bonding force of a molecular chain, and the dimensional stability and thermal stability of the fiber are improved. The invention is suitable for the fields of clothing, home textiles and high-temperature industrial fibers, and meets the requirements of high strength, high elasticity and high-temperature stability.

The invention discloses a woven carpet of various plant fibers, which is characterized in that warp yarns A comprise yarns A spun by sisal fibers, warp yarns B comprise yarns B spun by hemp fibers or blended by hemp fibers and cotton fibers, weft yarns are yarns C spun by banana tree stem fibers, the weft yarns are wound above or below the warp yarns A in a staggered manner, two warp yarns A are wound by the weft yarns each time, and the weft yarns are wound by the weft yarns each time. The warps B are located between every two adjacent warps A at intervals, the wefts wound below the warps A are wound below the warps B in a staggered mode or between the warps B and the warps A, and the directions of every two adjacent wefts vertically wound on the warps A and the warps B are opposite. According to the structure, the thickness of the woven carpet made of various plant fibers is increased, and the top surface of the carpet is made of natural plant fibers; the friction coefficient between the silica gel layers on the surfaces of the warps B and the ground is large, so that slipping between the carpet and the ground is avoided, the warps A and the wefts can be matched to be woven more tightly through the action of the silica gel layers, and the overall softness of the carpet is further improved.

The invention discloses a battery using an adhesive for improving the first effect and circulation of a silicon negative electrode system cell, the adhesive is formed by polymerizing acrylic acid, quasi-acrylic acid and hydroxyethyl acrylate monomer, the hydroxyethyl acrylate monomer accounts for 1.5-3% of the total mass of the monomer, the acrylic acid monomer accounts for 16-58% of the total mass of the monomer, and the acrylic acid monomer accounts for 0.5-1.5% of the total mass of the monomer. The content of the acrylic monomer is 40-82%, the hydroxyethyl acrylate monomer is located in the middle of the polymer, the structural formula of the acrylic monomer is as follows: # imgabs 0 # R1 and R2 are independently selected from any one of H, carboxyl, hydroxyl, methoxyl and phenyl, R3 is selected from any one of cyano and # imgabs 1 #, R4 is selected from one or more of C1-C6 alkoxy, hydroxyl, amino, ester group, acylamino, chloroformyl and acyloxy, and n is 1-3. And R5 is selected from any one of H, carboxyl, hydroxyl, methoxyl and phenyl. The adhesive provided by the invention is strong in adhesive capacity, good in adaptability to volume expansion of a silicon negative electrode, and capable of effectively improving the cycle and the first effect of the battery, and is applied to the battery.

The invention belongs to the technical field of cables, and particularly relates to a high-temperature-resistant metallurgical vehicle-mounted flexible cable and a preparation method thereof. According to the high-temperature-resistant cable material, polyimide, polyphenylene sulfide and polybenzimidazole are matched, so that the high-temperature-resistant cable material is endowed with extremely high high temperature resistance, can resist the high temperature of 300 DEG C, and is extremely suitable for cable materials for metallurgy. Then, the flexibility of the material is improved by adding a flexible polyether-ether-ketone / nano silicon dioxide compound, and the surface of nano silicon dioxide is treated, so that the loading rate of polyether-ether-ketone can be increased, the phase separation phenomenon of polyether-ether-ketone in a blend is prevented, and uniform dispersion is promoted. And finally, the prepared high-temperature-resistant metallurgical vehicle-mounted flexible cable material is used as a filler and a sheath of the cable material, so that the cable structure is reduced, the production difficulty of the cable is reduced, the production process is simplified, and the material and process requirements are reduced, thereby achieving the purposes of reducing the cost and improving the production efficiency to a certain extent.

The invention provides a carbon nano tube film flexible electric heating composite fabric and a preparation method, and solves the technical problems that the existing heating fabric cannot be folded for multiple times, is poor in comfort and cannot be cut, the carbon nano tube film flexible electric heating composite fabric comprises an antibacterial layer, a waterproof layer, a heating layer and a substrate layer, the waterproof layer comprises an upper waterproof layer and a lower waterproof layer, the device is characterized in that an upper waterproof layer and an antibacterial layer are sequentially arranged at the upper end of the heating layer, a lower waterproof layer and a substrate layer are sequentially arranged at the lower end of the heating layer, and the heating layer comprises a heating element and a flexible electrode; the heating element is a carbon nanotube film made of multi-walled carbon nanotubes with two closed ends and placed in the same direction, the conductivity of the heating element in the longitudinal direction is larger than that in the transverse direction, and the surface of the carbon nanotube film is electrically connected with the flexible electrode in a longitude and latitude crossing mode. The method can be widely applied to the technical field of cloth preparation.