280results about How to "Increase elastic strength" patented technology

The invention discloses a diaphragm for a sounding device, a sounding device and an assembling method thereof. The diaphragm includes a diaphragm layer prepared by subjecting at least one of an ethylene-acrylate copolymer and an ethylene-acrylic ester-carboxylic acid copolymer to crosslinking reaction. The molecular structure of the diaphragm includes a vinyl-acrylic group. The group reduces the chemical structure symmetry of a material, reduces tacticity, and increase steric hindrance, so that the diaphragm has a high loss factor and the sounding device has a good damping effect.

The invention relates to an AlFeCoNiCrTiVx high-entropy alloy material and a preparation method thereof. The high-entropy alloy comprises a component of AlFeCoNiCrTiVx, wherein the value range of x is 0.5-2. The preparation method of the alloy material comprises the following steps of: putting raw materials into a solution including acetone and ethanol, cleaning for 23-30 minutes by using an ultrasonic oscillator, and then drying in a 50DEG C drying oven for 6 hours; weighing alloys according to a molar ratio, and putting the alloys into a water-cooling copper crucible; when the air pressure in a furnace body reaches 3*10<-3>Pa, introducing high-purity argon to clean for 3-5 times; introducing high-purity argon to ensure that the air pressure in a furnace chamber is kept to be 0.8-0.9 atmospheric pressure, and then electrifying, wherein the smelting striking current is 30-40A, the current after stabilization is 90A, the time for smelting the alloys once is 10 seconds, and a sample needs to be smelted for 5 times repeatedly; and when the components of a smelted sample are uniformly cooled, taking the alloy out of the furnace. Compared with a conventional crystal alloy, the high-entropy alloy material has very good strength, tenacity, elasticity, high-temperature performance and electrochemical performance.

The invention relates to an oil-water separation type sodium alginate/graphene oxide composite aerogel and a preparation method thereof. The preparation method of the oil-water separation type sodium alginate/graphene oxide composite aerogel comprises the following steps: preparing a sodium alginate/graphene oxide mixed solution, preparing an uncrosslinked sodium alginate/graphene oxide composite aerogel, and preparing the oil-water separation type sodium alginate/graphene oxide composite aerogel. The oil-water separation type sodium alginate/graphene oxide composite aerogel has a highly porous structure, a complete three-dimensional network and a high separation efficiency, has a separation rate of above 99.9%, has high salt resistance, is suitable for being used in high-salinity sea environments, and also has the advantages of good elasticity, high mechanical strength, oil pollution resistance, realization of almost no reduction of the separation efficiency after reuse 40 times or more, and good reuse ability.

The invention discloses a modeling method of a necrosis caput femoris restoring model based on an umbrella-shaped caput femoris supporter. The modeling method comprises the steps that firstly, a three-dimensional model of a to-be-restored caput femoris is obtained, wherein the NURBS curved surface model of the to-be-restored caput femoris is obtained, the to-be-restored caput femoris is a caput femoris which exists in the thigh tissue necrosis area and is pre-restored by the caput femoris supporter, and the caput femoris supporter is composed of an umbrella-shaped supporter body and a supporting sleeve; secondly, the necrosis area needing to be separated is determined according to the shape of the umbrella-shaped supporter body, and a necrosis caput femoris model is established; thirdly, a caput femoris supporter model is established; fourthly, a necrosis caput femoris implantation model is established, wherein the necrosis caput femoris implantation model with an implantation channel and a three-dimensional model of an implanted bone are established; fifthly, the necrosis caput femoris restoring model is established. The modeling method is simple in step, reasonable in design, convenient to achieve and good in using effect, the restoring model of the caput femoris supporter implanted into the necrosis caput femoris can be easily, conveniently and quickly established, and the quality of the established restoring model is high.

An automatic hot-melt lamp adhesive for plastic, metal and glass automobile lamps comprises the following components in percent by mass: 20-30% of styrene-isopentadiene-styrene block copolymer with styrene content of 14-16%, 2030% of styrene-ethylene-butene-styrene block copolymer with styrene content of 30-33%, 25-35% of tackifying resin, 5-10% of light calcium carbonate, 5-10% of thermoelectric blast furnace fly ash, 3-8% of process additive, 2-5% of plasticizer and 0.5-1% of antioxidant. The materials sequentially added into a horizontal kneading machine according to a proportion for heating and kneading, injected in a square mould for molding and encapsulated by using release paper after cooled to demould. The automatic hot-melt lam lamp adhesive has the advantages of high bonding strength, good vibration resistance, low cost and environmental protection, and the like.

The invention relates to a method for preparing nano-encapsulated phase-change material (NEPCM) by taking amphiphilic polyurethane (PU) or a composite amphiphilic PU material as a capsule wall without adding an emulsifier. The method comprises the following steps: dispersing PCM and a small quantity of vinyl monomers by utilizing the amphiphilic PU; and then chemically cross-linking the PU capsule wall through emulsion polymerization initiated by free radicals to finally obtain the NEPCM. By utilizing the novel method for preparing the NEPCM provided by the invention, the obtained nano-capsules have good dispersion stability and good re-dispersibility and average particle size of 50nm-800nm, wherein a core material accounts for 1%-80% of the weight of one capsule. In addition, the NEPCM can be used in latent functionally thermal fluid in the form of suspension, and can be compounded with other materials in the form of powder so as to achieve a thermoregulation function.

The invention discloses a medical instrument storage device which comprises a box, wherein a medical identifier is fixedly connected with the front side of the box; a box cover is moveably connected with the top of the rear side of the box through a hinge; first fixing blocks are fixedly connected with the two sides of the bottom of the inner wall of the box; second fixing blocks are fixedly connected with the two sides at the bottom of the inner chambers of the first fixing blocks; first moveable rods are moveably connected with the tops of the second fixing blocks. According to the invention, the first fixing blocks, second fixing blocks, first moveable rods, third fixing blocks, moveable plates, tension springs, second moveable rods and a cushion are used together for solving the problem that the present medical instrument storage device has no damping function. The medical instrument storage device has the advantage of damping function, is capable of preventing the medical instruments in the box from being collided and damaged, is capable of effectively protecting the medical instruments, is capable of accelerating the rescuing for the wounded personnel and saving the life of the wounded personnel and is worthy of popularization and application.

A fastening structure of a clean container is combined on a cover of the clean container with a dismountable fastener member, such that the cover is closed or opened on a base of the clean container. The fastener member includes a body, a positioning portion, and an elastic fastening arm, that are one-piece formed. The positioning portion extends from one side of the body to form a flat spring. A flange is formed on the flat spring to fasten the fastener member on the cover. The elastic fastening arm has an elastic arm, and a lateral flange is formed on one end of the elastic arm, and extends into the base to be buckled. The fastener member further includes an elastic auxiliary arm formed between the elastic arm and the body, so as to increase an elastic strength of the elastic fastening arm.

A golf head of present invention comprising: A top part makes from light materials with the specific gravity is under 3. The top part provides a neck portion with an axis hole therein for a golf club to plug in. A bottom part mounts under the top part and makes from metals with the specific gravity is over 4. A face part with cup shape has a face and the edge of the face extrudes backward to from a plate potion, the face part mounts in front of the bottom part and the top part and makes from elastic metals like titanium alloy, stainless steel or maraging steel.

The invention refers to the area of materials science and material physics and relates to a coated magnetic alloy material that can be used, for example, as a magnetic cooling material for cooling purposes. The object of the present invention is to provide a coated magnetic alloy material that exhibits improved mechanical and/or chemical properties. The object is accomplished by a magnetic alloy material having an Na Zn13-type crystalline structure and having a composition according to the formula Ra Fe100-a-x-y-z Tx My Lz, the surface of said alloy material being coated with a material comprising at least one element from the group of Al, Si, C, Sn, Ti, V, Cd, Cr, Mn, W, Co, Ni, Cu, Zn, Pd, Ag, Pt, Au or combinations thereof. The object is further achieved by a method in which the magnetic alloy material is coated by way of fluid phase processes.

The invention relates to a weight-reducing jelly which mainly comprises Jew's-ear, a sweetening agent without heat value, a gelling agent, an emulsifying agent and water. The preparation method of theweight-reducing jelly comprises the steps of preparing Jew's-ear slurry, preparing a jelly colloid and preparing the weight-reducing jelly. In the invention, the Jew's-ear has the functions of lowering blood sugar and blood fat, resisting cancers and beautifying the face, has brown color, soft handfeel, delicious taste and abundant nutrition and can be used in meat or vegetable dish; an auxiliaryagent is rivier giantarum micropowder with the functions of reducing the weight, cleaning the stomach, conditioning the bowel, expelling toxin and relaxing bowels; and aspartame can not cause the raising of the blood sugar and is suitable for a diabetic to use, and the added modified starch can obviously enhance the elasticity and the gel strength of the jelly. The jelly is a health-care food with the functions of lowering the blood sugar and the blood fat, reducing the weight, resisting the cancers, beautifying the face and the like.

The invention relates to a microlite PVC (Poly Vinyl Chloride) foam floor and belongs to the technical field of chemical building materials. The microlite PVC foam floor is prepared from the following raw materials in parts by weight: 100-150 parts of PVC, 200-300 parts of microlite powder, 0.5-0.7 part of stabilizer, 0.6-1.0 part of foaming agent, 0.2-0.3 part of plasticizer, 0.5-0.7 part of lubricant and 0.5-0.7 part of flame retardant. The microlite PVC foam floor is extrusion-molded by using a plastic extruding machine; the obtained microlite PVC foam floor is low in density, wear-resistant, impact-resistant, high in elastic strength, natural in texture, and beautiful and elegant; the microlite PVC foam floor is also environment-friendly, non-toxic, tasteless and formaldehyde-free; the microlite PVC foam floor is further waterproof, damp-proof, skid-proof, wear-resistant, corrosion-resistant, fire-resistant, and recyclable.

The invention relates to an electrocaloric effect refrigeration composite thick film material. The composite thick film material comprises a SrTiO3 buffer layer and a (Pb1-3z/2Laz)(Zr1-x-ySnxTiy)O3 anti-ferroelectric thick film layer, wherein 0<=x<=0.45, 0<=y<=0.10, 0<=z<=0.06, and the SrTiO3 buffer layer is located between a substrate and the (Pb1-3z/2Laz)(Zr1-x-ySnxTiy)O3 anti-ferroelectric thick film layer. The composite thick film material has a high dielectric constant and high refrigeration efficiency and energy conversion efficiency and is suitable for development of micro-refrigerators with high refrigeration efficiency and energy conversion efficiency.

The process of producing golf club head includes the following steps: 1. making the lower metal member of integrated driving plane and club bottom; 2. prefabricating one die-casting die for integrated club side and cover; 3. fixing the lower metal member inside the die-casting die; 4. pouring metal liquid for die casting; and 5. de-molding to obtain the golf club head. Thus made golf club head is one hollow structure including one lower metal member and one upper metal member combined through die casting.

The invention discloses a flame-retardant ageing-resistant sealing ring rubber material which comprises the following raw materials in parts by weight: 80-100 parts of natural rubber, 20-40 parts of butadiene styrene rubber, 10-30 parts of ethylene propylene diene monomer, 10-30 parts of a phosphate modified polyurethane elastomer, 2-4 parts of dicumyl peroxide, 0.5-1 part of sulfur, 1-3 parts of an accelerant DM, 2-4 parts of an accelerant TAIC, 3-8 parts of zinc oxide, 1-3 parts of stearic acid, 6-10 parts of carbon black N660, 5-10 parts of titanium dioxide, 2-5 parts of quartz powder, 10-18 parts of calcite in powder, 6-15 parts of opal powder, 1-4 parts of a silane coupling agent, 2-8 parts of zinc borate, 1-4 parts of melamine, 1-2 parts of an anti-aging agent 4010NA, 2-4 parts of an anti-aging agent MB and 1-3 parts of an anti-aging agent AW. The rubber material disclosed by the invention has good flame-retardant property, ageing resistance and excellent weather resistance.

The invention discloses MXene material reinforced conductive hydrogel. The MXene material reinforced conductive hydrogel is formed by hydrogen bond crosslinking of an MXene material, hydroxyl-containing hydrogel and metal cations. The preparation method of the MXene material reinforced conductive hydrogel comprises the following steps: (1) carrying out cross-linking on hydroxyl-containing hydrogeland an MXene material solution to obtain MXene cross-linked hydrogel; and 2) soaking the MXene cross-linked hydrogel in a solution containing metal cations for cross-linking to obtain the MXene material reinforced conductive hydrogel. The elastic strength of the MXene material reinforced conductive hydrogel is remarkably improved, the conductivity is remarkably enhanced, the comprehensive performance is remarkably improved, and the application prospect is wide.

The invention relates to the technical field of power cables and in particular to a pressure-proof water-proof anti-corrosion cable material for an ocean device. The cable material is prepared from the following components: ethylene-propylene-diene monomer, reinforced glue, calcined ceramic powder, hydrophobic modified filler, dioctyl phthalate, polyamide-modified alkyd resin, zinc oxide, a lubricant, a cross-linking agent, an anti-aging agent, a silane coupling agent and a composite flame retardant, wherein the reinforced glue is a rubber material prepared by compounding nitrile rubber and chloroprene rubber with multiple resins and modifiers, the lubricant is stearic acid, magnesium stearate or zinc stearate, and the composite flame retardant is a mixture of antimonous oxide, aluminum hydroxide and decabrominated diphenylethane, wherein a mass ratio of the three in the mixture is 3:5:1. The cable material has excellent weather resistance and good protective property, and especially has good pressure resistance, water resistance and corrosion resistance.

The invention discloses an elastic high-strength antistatic shoe sole material, which comprises the following raw materials in parts by weight: 6-10 parts of organotin stabilizer, 7-9 parts of anti-slip agent, 2-4 parts of conductive filler, and 25-35 parts of hydroxylated polypropylene 50-60 parts of elastic filler, 4-8 parts of calcium carbonate, 5-7 parts of binder, 10-18 parts of reinforced inorganic fiber, 1-2 parts of antistatic agent, 3-5 parts of coupling agent, processing aid Dose 10-12 parts. The sole material of the present invention has good elasticity and mechanical strength, good anti-slip effect, excellent antistatic performance, excellent heat resistance, weather resistance and impact resistance; meanwhile, the raw material components of the present invention are safe and reliable, and have no pollution to the environment, and the raw material It is easy to obtain, low in cost, simple in process, low-carbon, environmentally friendly and pollution-free, and has high practical value and good application prospect.

The present invention relates to a traction mechanism (1), comprising a driven member (2) and at least one driving member (4) which are connected via a traction device (6) designed as a toothed belt. To achieve a vibration-damped traction mechanism (1), the driven member (2) designed as a toothed belt pulley (3) has a nonround configuration.

The invention discloses a peelable and biodegradable polyurethane protective film, a preparation method and application thereof. The protective film comprises the following raw materials by weight: 40-70 parts of thermoplastic polyurethane, 10-30 parts of biodegradable polyester, 0.01-0.5 part of a corrosion inhibitor, 1-10 parts of filler and 5-30 parts of a plasticizer. The preparation method comprises: 1) selecting materials according to the composition and weight part of each component prescribed in the formula; 2) putting the raw materials into a banbury mixer, performing stirring at 140-180DEG C for 5-15min till uniform mixing melting; 3) carrying out extrusion granulation and cooling to obtain an anti-bump and anti-corrosion protective film particle semi-finished product, during use, heating the semi-finished product to 160DEG C to melt it into liquid, then spraying the liquid on a metal component surface, and conducting cooling so as to form a 3-5micrometer protective film. The peelable and biodegradable polyurethane protective film provided by the invention has a simple formula and no pollution, and is especially suitable for temporary protection of metal raw materials and semi-finished products. The peelable and biodegradable polyurethane protective film is convenient to make and use, has no residual protective film after peeling, and can be biodegradable after abandonment.

The invention discloses thick automobile inner chamber leather with pressure resistance and friction-resistant color fastness. The thick automobile inner chamber comprises a base cloth layer and a surface layer coating one surface of the base cloth layer, wherein the surface layer is a four-layer structure and comprises a water-base PU bottom layer, a water-base PU foamed layer, a water-base PU reinforcing layer and a water-base PU surface layer which are sequentially connected. According to the thick automobile inner chamber leather, the base cloth layer has the effects of resisting bacteria and ultraviolet light and retarding combustion; the surface layer is a four-layer structure and has strong leather sensation, and the four layers are made of a water-base polyurethane emulsion, so that the environmental protection property is good, the strength is high, and the water repellency and the gas permeability are strong; the PU foamed layer is of a hollow formed structure and is light, so that the automobile inner chamber leather is endowed with relatively rebound resilience and compression strength; nano-TiO2 powder, nano-ZnO powder and polyol fatty acid ester are further added into the water-base PU surface layer, so that the automobile inner chamber leather has relatively strong light aging resistance and static electricity resistance; by utilizing a Dow Corning DC-57 organosilicon polyether copolymer, the automobile inner chamber leather is smooth and wearable and has strong friction-resistant color fastness.