48results about How to "Strong elongation" patented technology

The invention provides a method for improving the physical and mechanical properties of oxidation-degummed ramie. The method comprises the following steps of: preparing a degumming solution by using caustic soda, an oxidant, a surfactant, a fiber expanding agent, an oxidant stabilizer and water; mixing raw ramie and the degumming solution, heating, and boiling off to sufficiently remove colloid; and then cooling, adding a reduction softener, maintaining the temperature, oiling and drying after washing with clear water, and opening and carding to obtain textile ramie fiber subjected to reduction modification. According to the method disclosed by the invention, the defects of the prior art are overcome; and the reduction softener is added to raffinate obtained after oxidation-degumming, oxycellulose produced in the degumming process is reduced and softened, so that the physical and mechanical properties, such as strength, length, elongation and softness of the fiber are improved, the working procedures are simplified, and pollution and environmental pressure are lightened.

The invention discloses a flange producing technique. The flange producing technique comprises a flange stock forging and a blank cutting and shaping; the flange stock forging comprises an electric stove heating, forging and shaping after cooling, extruding and shaping, and solution heat treatment; the blank cutting and shaping includes punching hole, acid washing, rough and fine turning, outer hole drilling, and processing and shaping. A crystal grain of the forging stock is uniform in organization ,low in hardness, good in toughness, high in yield degree, strong in tensile strength, and standard elongation rate; the flange stock forging efficiency is improved by 300%, and materials can reach zero loss; the produced flange disk is accurate in dimension and good in surface finishing degree.

An electronic device comprising a substrate, a cover delimiting at least a part of a main surface of the substrate to thereby form a cover-substrate arrangement enclosing a hollow space and having a through hole, an electroacoustic transducer configured for converting between an electric signal and an acoustic signal and being mounted on the substrate acoustically coupled with the hollow space in such a way that the hollow space constitutes a back volume of the electroacoustic transducer, wherein the electroacoustic transducer provides an acoustical coupling between the hollow space and an exterior of the cover-substrate arrangement via the through hole, an electronic chip mounted within the cover-substrate arrangement and electrically coupled with the electroacoustic transducer for communicating electric signals between the electronic chip and the electroacoustic transducer, and at least one electronic member mounted on the substrate within the cover-substrate arrangement and configured for providing an electronic function.

The invention discloses a single-component exposed polyurethane waterproof paint and a preparation method thereof. The method comprises the following steps: adding polyether glycol, polycarbonate polylol, a plasticizer and a pigment and filler into a reaction vessel, uniformly dispersing, heating and carrying out vacuum dehydration; cooling, adding diisocyanate, and reacting by stirring and heating; adding a chain extender, and reacting; adding a diisocyanate tripolymer, and continuing reacting; cooling, adding a solvent and stirring; cooling, adding a catalyst, an ultraviolet absorbent, an ultraviolet stabilizer, an antioxidant and a defoaming agent, stirring uniformly, and degassing and discharging in a vacuum to obtain the finished product. The paint has the advantages of high strength, high elongation percentage, favorable weather resistance, favorable wear resistance, favorable scratch resistance and simple manufacturing process, and is convenient for construction.

The invention discloses a self-adhesive fabric internally reinforced thermoplastic polyolefin composite waterproof roll, which at least comprises a fabric internally reinforced thermoplastic polyolefin layer, a functional transition layer and a self-adhesive layer, wherein the fabric internally reinforced thermoplastic polyolefin layer is formed by combining two thermoplastic polyolefin layers with one fabric reinforcing layer. The thermoplastic polyolefin layer mainly comprises first ingredient thermoplastic polyolefin, second ingredient thermoplastic polyolefin, a filler, a coupling agent, a light screener, an antioxidant and a light stabilizer. In the invention, the advantages of environmental friendliness, simple processing, low-temperature performance, capability of welding, whether resistance and the like of the TPO roll are combined with the advantages of convenient construction, high substrate bond strength, adhering completeness, reliable lapped side welding, no 'water movement between layers' and the like of self-adhered membranes. The waterproof roll has the advantages of high strength, high elongation, high low-temperature performance, high whether resistance, high sunlight reflectivity, high roll smoothness, strong bonding force of the self-adhesive, convenient construction and the like and thus is an advanced waterproof roll.

The invention discloses a shield tunnel segment structure and a connecting structure thereof. The shield tunnel segment structure comprises a segment body and is characterized in that the segment body is mainly composed of a steel plate layer, a concrete layer wrapping the steel plate layer, and steel mesh reinforcements which are located on the two sides of the steel plate layer correspondingly and embedded in the concrete layer; the lateral edges of the segment body are fixedly provided with metal connectors, the outer sides of the metal connectors are provided with grooves for containing water stops, and the water stops are installed inside the grooves; and an outer protecting layer is arranged on the outer side of the segment body, and the outer protecting layer is a polyurea layer combined on the outer side surface of the segment body. The connecting structure is composed of two adjacently arranged shield tunnel segment structures and a connecting part for connecting the two shield tunnel segment structures. A connecting steel plate is composed of a middle arc-shaped section and flat sections on two sides. The shield tunnel segment structure and the connecting structure thereof have the characteristics that thickness is small, strength is high and the connectors are not prone to damage; and the connector deformation control effect is good, the seam waterproof effect is good, durability is high, and repairing is convenient.

A multifunctional paint for internal or external wall is prepared from acrylic resin, ethanediol, tributyl phosphate, peanut oil, hydroxyethyl cellulose, benzyl bromoacetate, and titanium oxide powder. Its advantages are high adhesion and resistance to acid, alkali, weather variation, water, mildew, corrosion and dirt, and long service life.

The invention relates to the field of waterproof coiled materials and discloses a polyethylene double-side composite waterproof coiled material which is composed of, in a compositing manner, an inner layer 1, an outer layer 3 and a middle layer 2. The inner layer is composed of a polypropylene yarn filament non-woven cloth, the outer layer is composed of a polyester filament yarn non-woven cloth, and the middle layer is a sheet material prepared from polyethylene resin, wherein the middle layer is composited between the inner layer and the outer layer and the thickness of the middle layer is larger than those of the inner layer and the outer layer. The coiled material allows cold construction and cement wet pavement, is convenient to use, is strong in adhesion force, is good in stability, is high in tensile strength and ductility, is good in low-temperature flexibility and heat resistance, and is anti-corrosion and anti-radiation. The coiled material is widely used in waterproofing treatment on various roofs in industry and construction industry, and in waterproof engineering on basements, reservoirs, dams, highway tunnels, viaduct bridges, railway tunnels, air-raid shelter, grain depots, garbage stations, wastewater treatment plants and the like.

The invention discloses a water-based permeable self-healing high polymer modified asphalt waterproof coating with a hydrophobic surface as well as a preparation method and application thereof. The coating is prepared from emulsified asphalt, acrylate emulsion, an alkali swelling thickener, a polyurethane thickener, a dispersing agent, a multifunctional additive, a defoaming agent, a sterilizing agent, ground calcium carbonate powder, bentonite, an organic silicon water repellent, sodium silicate, a photoinitiator, a cross-linking agent and water. The coating disclosed by the invention mainlyhas rapid curing performance, self-healing performance, ultrahigh bonding strength and elongation rate and excellent water resistance and high and low temperature resistance, is suitable for various environments, can achieve a good waterproof effect on a building structure in any environment, is particularly suitable for waterproof engineering of various extremely complex environments, projects ofsome complex scenes and some special regions and projects, fills the blank of the material in severe cold regions, and is wide in application range.

The invention provides a vibration-absorption material, which has excellent vibration-absorption performance without needing to set any vibration-absorption structure. An experiment result of the embodiment shows that a shoe sole obtained through the vibration-absorption material provided by the invention has excellent hardness, tension strength, elongation, right-angled tearing strength, specific gravity, wear-resisting property and vibration-absorption performance, and a vibration-absorption performance G value is less than or equal to 35, which is far better than the vibration-absorption performance (45 or higher) of a common shoe sole.

The invention belongs to the field of metal manufacturing, and discloses an automobile light chassis aluminum alloy structural member and a preparing method thereof. The automobile light chassis aluminum alloy structural member is prepared from titanium, lead, manganese, silicon, iron, copper, magnesium, zinc, chrome, nickel, tin and the balance aluminum. The automobile light chassis aluminum alloy structural member has few bubbles inside, is good in mechanical performance, high in strength and high in corrosion resistance and high temperature resistance, is good in stability when used as an automobile part and is worthy of popularization; the product defects that original thin-wall support products have stress concentration and are prone to cracking are overcome, toughness and ductility are high, and the ductility is far superior to that of an existing product; aluminum alloy components are strictly controlled, the content proportions of Mn and Mg are independently set, and thus mechanical performance is improved; and accordingly, the automobile light chassis aluminum alloy structural member has good market prospects.

The present invention relates to a high-extension copper tire based root puncture-resistant waterproofing coiled material. The waterproofing coiled material has a multilayer composite structure comprising an intermediate layer and a modified asphalt coating. The middle layer is a composite copper tire based non-woven fabric, and the upper and lower surfaces of the composite copper tire based non-woven fabric are coated with the modified asphalt coatings. The components of the modified asphalt coating comprise, by weight, 100 parts of matrix asphalt, 5-20 parts of a softener, 8-26 parts of a modifier, 5-15 parts of an extension accelerator, 0.1-0.5 part of an antioxidant and 0.1-1 part of a propionate derivative. The coiled material has excellent resistance to high and low temperature, high elongation percentage and root resistance performance.

The invention relates to the technical field of building waterproofing materials, and concretely relates to a liquid coiled material waterproofing coating and a preparation method thereof. The liquidcoiled material waterproofing coating least comprises 25-35 wt% of an acrylic emulsion, 25-35 wt% of a powder, 25-35 wt% of asphalt, 0-10 wt% of water and 1-6 wt% of an auxiliary agent. A coating layer formed by the liquid coiled material waterproofing coating has the advantages of high elasticity, high extensibility, high density and high elongation, so the coating layer has very good adaptability to deformation, cracking and the like of a base layer, and has obvious superiority in construction of complex parts. Additionally, the waterproofing coating has the advantages of environmental friendliness, waterborne property, odorlessness, and convenience in construction. A seamless and complete elastic waterproof layer is formed after the waterproofing coating layer is cured, so the waterproof and anti-seepage capacity of constructional engineering is improved; and the maintenance is convenient, and the original waterproof effect can still be achieved only by locally maintaining the damaged part.

The invention belongs to the technical field of loofah planting and particularly relates to a seed treatment method capable of increasing the direct seeding emergence rate of loofah. The method specifically comprises the steps as follows: (1) loofah seeds are immersed in a monopotassium phosphate aqueous solution to be soaked at the constant temperature and fished out, and the obtained loofah seeds are placed in a refrigerator to be frozen; (2) the frozen loofah seeds are immersed in a seed soaking agent to soaked at the constant temperature and fished out, and microwave drying is performed until the water content is 15%-17%. The seed soaking agent is prepared from raw materials as follows: borax, zinc sulfate, a griffonia seed extract, resveratrol, luteolin and water. Seeding can be performed after treatment without germination acceleration, the method is quick and convenient, quick germination and seedling emergence of loofah seeds can be effectively promoted, so that the emergence rate reaches 98.5% or above; besides, seedlings grow vigorously, root system growth and elongation capacity is high, the nutrient absorbing capacity of seedlings can be effectively promoted, the disease resistance and drought resistance are high, germs and viruses can be resisted effectively, and the seedling rate can be effectively increased to 96.5% or above.

The invention provides a method for improving the physical and mechanical properties of oxidation-degummed ramie. The method comprises the following steps of: preparing a degumming solution by using caustic soda, an oxidant, a surfactant, a fiber expanding agent, an oxidant stabilizer and water; mixing raw ramie and the degumming solution, heating, and boiling off to sufficiently remove colloid; and then cooling, adding a reduction softener, maintaining the temperature, oiling and drying after washing with clear water, and opening and carding to obtain textile ramie fiber subjected to reduction modification. According to the method disclosed by the invention, the defects of the prior art are overcome; and the reduction softener is added to raffinate obtained after oxidation-degumming, oxycellulose produced in the degumming process is reduced and softened, so that the physical and mechanical properties, such as strength, length, elongation and softness of the fiber are improved, the working procedures are simplified, and pollution and environmental pressure are lightened.

The invention discloses a high-insulativity and high-temperature-resistant cable and a manufacturing method therefor. The high-insulativity and high-temperature-resistant cable comprises a surface layer sheath, a hollow layer, a supporting layer, an inner lining part, insulating layers and conductors, wherein the cable can bear a working temperature from minus 70 to 200 DEG C for a long time; the cable at least can resist thunder and lightning steep peak value of 5,000kV / s; the yield strength of the cable is not lower than 80N / mm<2>; the ductility of the cable is not lower than 25% and the tensile strength of the cable is not lower than 100N / mm<2>. The extremely excellent high-temperature-resistance and insulation performance of the cable is obtained by steps of weaving ceramic fibers which are manufactured by a specific method into a tubular net to be used as the supporting layer, adding design of the hollow layer, and choosing a high-temperature-resistant and anti-aging material as a base material. The high-insulativity and high-temperature-resistant cable is good in comprehensive mechanical performance, high in insulativity, high in high temperature resistance, resistant to aging, long in service life, and wide in range of application.

The invention discloses a high-strength electric-conductive plastic and a preparation method thereof and relates to the technical field of electric-conductive materials. The electric-conductive plastic includes: modified polyphenyl ether resin, polycarbonate, expanded graphite, carbon fibers, electric-conductive mica powder, potassium titanate whiskers, polytetrafluoroethylene, methyl silicon oil, magnesium stearate, a surfactant, a coupling agent, a plasticizer and an anti-aging agent. The preparation method includes the steps of mixing the raw materials and performing extrusive granulation. The electric-conductive plastic is low in production cost, has high extension strength, high stretch rate and low electrical resistivity, is long in service life, has wide application range and is suitable for promotion and application.

The invention relates to the technical field of membrane material research and development and preparation and discloses a novel green degradable high-elasticity membrane material. Modified hemicellulose has good compatibility with sorbitol, the two components infiltrate into each other and are tightly integrated, micro-molecules replace hydrogen bonding of hemicellulose macro-molecules, the micro-molecules and hemicellulose macro-molecule chains form a three-dimensional network-like structure in a hydrogen bond way, membrane material cracks are gradually decreased, a membrane becomes soft, thus the membrane formation performance is improved, the membrane has very high elasticity and ductility, the thickness is as small as 0.05 mm, the transparency is high, the tensile strength is 17.1-17.5 MPa, and the elongation at break is up to 610-620%, and the novel green degradable high-elasticity membrane material has excellent environmentally-friendly and degradable properties and the like andhas a good application prospect, a production process is simple, raw material sources are rich, and the production cost is low.

An electronic device comprising a substrate, a cover delimiting at least a part of a main surface of the substrate to thereby form a cover-substrate arrangement enclosing a hollow space and having a through hole, an electroacoustic transducer configured for converting between an electric signal and an acoustic signal and being mounted on the substrate acoustically coupled with the hollow space in such a way that the hollow space constitutes a back volume of the electroacoustic transducer, wherein the electroacoustic transducer provides an acoustical coupling between the hollow space and an exterior of the cover-substrate arrangement via the through hole, an electronic chip mounted within the cover-substrate arrangement and electrically coupled with the electroacoustic transducer for communicating electric signals between the electronic chip and the electroacoustic transducer, and at least one electronic member mounted on the substrate within the cover-substrate arrangement and configured for providing an electronic function.

The invention relates to a preparation method of a casing. The preparation method comprises the following steps of preparing lotus root insoluble dietary fibers, dispersing the lotus root insoluble dietary fibers and vital gluten in purified water to form a dispersion liquid A, mixing human collagen and soybean protein, adding glycerol to form a mixed solution B, adding the dispersion liquid A into the mixed solution B, stirring, mixing, adding carboxymethyl cellulose sodium and food-grade sodium bicarbonate, sequentially carrying out high-speed and low-speed step-by-step stirring, introducingoxygen in the low-speed stirring process, adding a cross-linking agent, continuously stirring, and then preparing the casing. The casing prepared by the invention is high in structural stability, excellent in mechanical property, and strong in elongation and flexibility, so that the casing is not broken during sausage filling; a large number of uniformly distributed air holes exist in the casing,so that moisture generated by pickling after sausage filling is rapidly volatilized, and the drying time is shortened; and the viscosity between the sausage meat and the casing is high, so that the separation of the sausage meat and the casing can be efficiently avoided in the drying and subsequent cooking processes.

The invention relates to an alkali-resistant latex paint. The invention is characterized in that the alkali-resistant latex paint comprises the following components in percentage by mass: 30-50% of epoxy resin, 15-25% of deionized water, 10-15% of superfine ground calcium carbonate, 5-10% of superfine calcined kaolin, 5-10% of wollastonite, 1-3% of nano silicon dioxide, 0.5-1% of dispersing agent, 0.1-0.5% of bactericidal preservative, 0.5-1% of defoaming agent, 1-3% of film forming assistant, 0.1-0.2% of dispersing agent, 0.3-0.5% of humectant, 6-8% of inorganic antalkali, 0.2-0.6% of leveling agent, 0.1-0.5% of thickener and 0.1-0.5% of elastic emulsion. The dispersing agent is an ultralow-molecular potassium salt dispersing agent free of VOC (volatile organic compound), has the advantages of obvious dispersion effect, high dispersion efficiency and no toxicity, and can not pollute the environment. The alkali-resistant latex paint has the advantages of high adhesive force and high hardness. By adding the elastic emulsion, the alkali-resistant latex paint also has the advantages of high elongation percentage, high rebound rate, favorable hand feeling and low tendency to cracking.

The invention relates to the technical field of stone paper, in particular to a stone paper for home decoration. It is composed of the following parts by weight: bimodal linear low density polyethylene 10-15 parts, ethylene-vinyl acetate copolymer 5-8 parts, dilauryl thiodipropionate 0.1-0.3 parts, titanium dioxide 5- 10 parts, 70-80 parts of modified fibrous light calcium carbonate, 3-5 parts of silane coupling agent, 0.8-1.2 parts of stearic acid, 0.8-1.5 parts of p-octylphenyl salicylate, epoxy plasticizer 0.8-1.5 parts of agent, 0.2-0.5 parts of polyethylene wax, 0.05-0.1 parts of compatibilizer, 0.5-0.8 parts of dispersant, and 0.5-1.5 parts of flame retardant. The stone paper for home decoration provided by the invention has good physical and mechanical properties, high tensile strength, strong elongation, and light specific gravity. As wallpaper for home decoration and packaging paper for other flammable products, it can reduce The occurrence of fire accidents has very good significance for saving energy, protecting natural resources, and improving the environment.

The invention discloses a high-elastic primer which is refined from high-molecular elastic emulsion, inorganic binders, functional additives, and pigments and fillers. Its unique high-elastic formula design has amazing resilience enough to expand and shrink with the base layer. , thereby resisting cracking. Its unique elastic function is used in conjunction with fluorocarbon paint, which can solve the common problem that fluorocarbon paint is easy to crack, which is beneficial to its decoration, so that the wall is cracked but the paint is not cracked, and the wall can be protected for a long time.

A kind of preparation method of sausage casing, specifically prepare lotus root insoluble dietary fiber first, disperse in purified water with gluten powder, form dispersion liquid A, adopt human source collagen protein and soybean protein to mix, add glycerin to form mixed liquid B, the dispersion liquid Add A into the mixed liquid B, stir and mix, add sodium hydroxymethyl cellulose and food grade sodium bicarbonate, stir step by step at high speed and low speed in turn, introduce oxygen during low speed stirring, add crosslinking agent and continue stirring, and then prepare into casings. The sausage casing prepared by the invention has high structural stability, excellent mechanical and mechanical properties, strong elongation and flexibility, so that the casing does not break during enema; there are a large number of uniformly distributed pores in the casing, which makes the sausage produced by pickling after enema The moisture evaporates quickly and the drying time is shortened; the viscosity between the sausage meat and the casing is high, which can effectively prevent the meat from separating from the casing during drying and subsequent cooking.

The invention relates to the technical field of membrane material research and development and preparation and discloses a novel green degradable high-elasticity membrane material. Modified hemicellulose has good compatibility with sorbitol, the two components infiltrate into each other and are tightly integrated, micro-molecules replace hydrogen bonding of hemicellulose macro-molecules, the micro-molecules and hemicellulose macro-molecule chains form a three-dimensional network-like structure in a hydrogen bond way, membrane material cracks are gradually decreased, a membrane becomes soft, thus the membrane formation performance is improved, the membrane has very high elasticity and ductility, the thickness is as small as 0.05 mm, the transparency is high, the tensile strength is 17.1-17.5 MPa, and the elongation at break is up to 610-620%, and the novel green degradable high-elasticity membrane material has excellent environmentally-friendly and degradable properties and the like andhas a good application prospect, a production process is simple, raw material sources are rich, and the production cost is low.

The invention relates to a 10-kV overhead insulated cable comprising a conductor. A shielding layer is arranged outside the conductor; an insulating layer is arranged outside the shielding layer; and a protective layer is arranged outside the insulating layer. The conductor consists of a high-strength carbon fiber composite core and heat-resistant aluminum alloy single wires arranged outside the high-strength carbon fiber composite core; and the high-strength carbon fiber composite core and the heat-resistant aluminum alloy single wires from a concentric twisting structure. The 10-kV overhead insulated cable has characteristics of light weight, high tensile strength, good electrical performance, high thermal stability, good creep property, and good weather-resistance performance.