91results about How to "Retain toughness" patented technology

The invention provides a cell-less heterogenetic cornea material and manufacturing method and use, the manufacturing method for the product is: acquires the fresh animals' cornea at first; eliminates the cell membrane of the cornea material and nucleic acid with chemical method and enzyme method; carries on dehydration process to the cell-less heterogenetic cornea material; stores for backup. The method eliminates the antigenicity of the heterogenetic cornea material through eliminating the cell elements in the cornea material. At the same time, it reserves the integrity of glue fiber and transparency of the cornea. The material can be applied to construction of manmade cornea or used as the medical material for cornea transplantation, and cornea refraction operation directly.

The invention discloses a method for peeling off walnut kernel pellicle by ultrasonic waves, which is characterized by comprising: firstly, placing walnut meat in 50 to 75 DEG C hot water and completely immersing the walnut meat in the hot water for 5 to 20 minutes; secondly, placing the heated walnut meat in a cold water container, and immersing the walnut meat in the water completely; thirdly, applying ultrasonic waves at a frequency of 1 to 10KHz and a sound intensity of 0.2 to 10W/cm<2> to the cold water for performing ultrasonic treatment for 4 to 20 minutes by using a piezoelectric ultrasonic generator to remove the pellicle on the surface of the walnut meat; and finally, manually removing the residual pellicle in the wrinkles of the walnut meat and obtaining clean hulled walnut meat. The method of the invention is efficiency, pollution-free, economic and practical, is applicable to almonds, ginkgo nut pip, pine nut pip, hazelnut pip, pea nut pip and other nut pips and suitable for industrial production and has very high promotion value.

The invention discloses a fiber-reinforced sludge curing agent, which mainly comprises 99%-99.9% by weight of curing material and 0.1%-1% by weight of fiber material, wherein the curing material comprises the following components in percentage by weight: 10-30% of mineral slag, 15%-45% of pulverized ash, 10%-25% of cement, 20%-30% of lime and 0.5%-5% of exciter. Aiming at the problems of the existing sludge curing material, such as high addition quantity, poor mechanical performance, poor tensile toughness and poor bending toughness, the sludge curing agent is reinforced by the fiber material, and therefore the comprehensive mechanical performances of the sludge curing soil, such as compressive strength, splitting tensile strength and toughness, as well as shock resistance property, can be effectively enhanced; moreover, the addition of fibers is small, the fiber-reinforced sludge curing agent is convenient to produce and wide in application range.

A polyamide resin comprising a dicarboxylic acid constitutional unit comprising an adipic acid unit and a diamine constitutional unit comprising a pentamethylenediamine unit and a hexamethylenediamine unit wherein a weight ratio of the pentamethylenediamine unit to the hexamethylenediamine unit being in the range of 95:5 to 60:40; a vibration-welded molded product having an excellent vibration welding strength, a hinged molded product and a binding band having an excellent low-temperature toughness, and a filament having an excellent transparency which are obtained from the polyamide resin; and a hinged molded product comprising a polyamide resin constituted of an adipic acid unit and a pentamethylenediamine unit.

A moisture-proof, heatproof, size-stable, deformation-free and anti-cracking solid wood floor processing method provided by the invention relates to the technical field of building materials. By the adoption of a wet-heat resistant, anti-deformation and anti-cracking key technology, a solid wood floor blank is completely immersed in a container filled with a waterproof moisture-proof substance in a liquid state of 35-95 DEG C, and simultaneously a pressure of 0.2-1.5Mpa is applied for 24-72 hours so as to make the waterproof moisture-proof substance to be permeated into the inside of the solid wood floor blank; and after the solid wood floor blank is taken out and infiltrated, the solid wood floor blank is dried and processed according to specification requirements so as to manufacture the moisture-proof, heatproof, size-stable, deformation-free and anti-cracking solid wood floor product. The waterproof moisture-proof substance comprises, by weight, 0-100% of wax and 0-100% of dry plant oil, is used in wet-heat resistant, anti-deformation and anti-cracking processing of wood floor, and can be used to make solid wood floor moisture-proof, heatproof, size-stable, deformation-free, anti-cracking and durable.

The invention relates to a ligament support containing silk fibroin compound oriented nanofiber and a preparation method thereof, and belongs to the technical field of medical apparatus and instruments. The ligament support is prepared from oriented fiber combining silk fibroin with a medical high molecular synthetic material and has a porous three dimensional structure, the mass ratio of the silk fibroin and medical high molecular synthetic material in the compound oriented fiber is (1-20):(1-1), the diameter of the compound oriented fiber is 500nm-10000nm, the thickness of the ligament is 1mm-10mm, and the width of the ligament is 1mm-15mm. The ligament support has a uniform microstructure and good biocompatibility, provides a matrix structure for growing of ligament cells, and can be used for increasing the tensile strength of the ligament due to the compound fiber orientated structure. The ligament support is simple in preparation method and convenient to operate, the preparation process is controllable, and the preparation method is suitable for preparing the ligament supports of various sections and lengths.

A vacuum separation method of a waste lithium iron phosphate battery positive plate comprises the following steps: cutting the waste lithium iron phosphate battery positive plate into loose sheets, and putting the loose pole plates into a vacuum furnace for vacuum roasting at the temperature of 350-450 DEG C for 1-6 hours; putting the calcined waste pole sheets into a vibrating screen in batches;adding steel balls with different particle sizes at the same time; and vibrating and screening to obtain aluminum foils on the vibrating screen and lithium iron phosphate waste powder under the vibrating screen. According to the method, the situation that aluminum foils are damaged and enters the lithium iron phosphate waste powder in the vibrating and screening process is reduced; and meanwhile,lithium is activated, and a foundation is laid for direct repair and recovery of a lithium iron phosphate pyrogenic process.

A frozen low-antigen matrix of foreign cornea for cornea transplantation is prepared through picking-up the fresh eyeball of animal, storing at -70 deg.C, gamma-ray irradiating, storing in -20- -70 deg.C, thawing, shearing whole cornea, and tearing out its epitheliium and endotherlium.

The invention aims at providing a reciprocating scrape type bamboo outer skin removing device, comprising a rack, a knife rest and a knife rest driving mechanism, wherein the knife rest is connected with the knife rest driving mechanism, and mutually matched guide mechanisms are arranged between the knife rest and the rack so as to make the knife rest move up and down on the rack; at least one set of blade group is arranged on the knife rest, the blade group internally comprises two opposite blades which are connected with the knife rest through an elastic pressing mechanism so as to make the two blades in the same blade group able to clamp the bamboo passing between the two blades; the rack is further provided with a position limiting mechanism for limiting the position of the bamboo. The reciprocating scrape type bamboo outer skin removing device changes the working manner of a bamboo outer skin removing machine in the prior art, uses the reciprocating blades to simulate manual bamboo outer skin scraping, is able to improve the working efficiency greatly, lowers the manual labor intensity, and can keep the bamboo tenacity to the maximum extent.

The invention discloses a comprehensive recovery method of a waste lithium battery positive electrode piece. The method comprises the steps that a positive electrode leftover material and a wasted positive electrode piece are placed into a vacuum furnace to be calcinated, rapping and screening are conducted to obtain a positive active substance, the positive electrode active material is added to asulphuric acid leaching solution, second-stage leaching is conducted, and leached slag carbon and the leaching solution containing nickel, cobalt, manganese and lithium; activated carbon is added tothe leaching solution to perform adsorption deoiling and silica removing, nickel carbonate, cobalt carbonate, manganese carbonate or lithium carbonate is replenished to the filtered residue to obtainprecursors, ball milling, sintering, pulverizing, grinding and mesh screening are conducted on the precursors, and a nickel-cobalt-manganese-acid-lithium positive electrode material is obtained. The method has the advantages that the technology is reasonable, the separation cost is low, and there exists no pollution, toxin or harm.

The invention discloses a handmade sausage and a making method thereof. The handmade sausage is made by stirring and mixing pork lean meat, fat, auxiliary materials and water and performing vacuum rolling rubbing, casting filling and fumigation and baking, wherein the weight part ratio of the pork lean meat to fat is 9:1 to 7:3, the ratio of the total weight of the pork lean meat and fat to the mass of the auxiliary materials is 100 to 5-7, the ratio of the total weight of the pork lean meat and fat to the mass of the water is 100 to 6-8, and the grain size ratio of the pork lean meat to fat is 1:1 to 4:1. Fresh rear leg pork is carefully selected as the raw material for the handmade sausage, naturally casings are adopted for filling, manual cutting and stirring are performed, the taste and toughness of the sausage are retained to the most degree, the big sectional meat grains of the product are clear and visible, the protein content is high, the nutritive value is high, and a special fermentation flavor is produced in the special salting and backing technology process. Required devices are common devices, the cost is lower, the operability is strong, large-scale production is easy, and especially the product has a special flavor characteristic and has a wide market prospect.

The invention provides a hydrotalcite-intercalated flame-retarding-enhanced polypropylene material and a preparing method thereof, and relates to the technical field of polymeric composite materials. The hydrotalcite-intercalated flame-retarding-enhanced polypropylene material is prepared from polypropylene, a light stabilizer, a lubricating agent, modified hydrotalcite, a compatilizer, an antioxidant and an assistant. The hydrotalcite-intercalated flame-retarding-enhanced polypropylene material has the high strength, the heat stability and the flame-retarding performance.

The invention discloses a glass fiber reinforced ABS (Acrylonitrile Butadiene Styrene) material with high heat resistance and belongs to the technical field of high molecular materials. The ABS material consists of the following components: ABS, glass fibers, a compatilizer, a toughening agent, a heat resisting agent, an antioxidant and a processing aid. Compared with the prior art, the ABS material has the following advantages and beneficial effects: (1) the high-efficiency ABS heat resisting agent is adopted, the effect of compatibility with an ABS base material is good, the properties are enhanced remarkably, the heat-resisting temperature of the unmodified ABS material is about 80 DEG C and the heat-resisting temperature of the modified ABS material achieves over 100 DEG C; (2) by the composition of the glass fibers, the heat resistance of the ABS material is enhanced further, so that the heat-resisting temperature of the modified ABS material achieves over 150 DEG C, also, the strength of the material is enhanced and the application field of products is expanded; and (3) the ABS material with high heat resistance and high strength has high rigidity and meanwhile retains certain toughness, so that the application field is expanded further; and the ABS material conforms to national environment protection requirements.

The invention discloses a nano-tungsten alloy material and a preparing method thereof. The nano-tungsten alloy material is mainly composed of metal tungsten and further comprises, by weight percent, 3.8 to 4.55% of Ni, 1.2 to 1.95% of Fe and 0.23 to 0.5% of Co, burdening, ball milling, mixing, pressing and sintering are adopted to make the nano-tungsten alloy. The prepared nano-tungsten alloy hasthe high density of 16.5 to 19.0g/cm<3>, the large proportion of 16.5 to 18.75 g/cm<3> and high strength, the tensile strength is 700 to 1000 MPa, and the alloy can be widely applied to the industriesof aerospace, aviation, military, medicine and the like.

The invention discloses a preparation method of a carbon nanotube nanosilica co-modified polyvinyl alcohol composite ultra-filtration membrane. The preparation method comprises the following steps of: adding a certain amount of carboxylated carbon nanotubes and nanosilica which are dispersed by a surfactant, to a casting membrane solution by adopting polyvinyl alcohol as a membrane substrate material; and preparing the membrane by adopting polyethylene glycol as a pore-foaming agent through an immersion-precipitation phase transformation process. The prepared membrane not only has the hydrophily of the polyvinyl alcohol to achieve strong anti-pollution capacity, but also keeps the strength and toughness of inorganic materials to make up the defects of low strength and inability of resisting pressure of the polyvinyl alcohol wet membrane. The composite ultra-filtration membrane has strong anti-pollution capacity, high water flux and better retaining characteristic, can be repeatedly used and is long in service life.

The invention discloses an anti-cracking stone-like coating and a preparation method thereof, belonging to the field of building exterior wall coatings. According to technical key points in the invention, the anti-cracking stone-like coating is prepared from the following raw materials in parts by weight: 100-120 parts of water, 1 to 2 parts of hydroxyethyl cellulose, 2.5 to 3.5 parts of a dispersing agent, 0.6-1 part of a wetting agent, 0.8 to 1.2 parts of a de-foaming agent, 8 to 12 parts of rutile titanium dioxide, 40 to 60 parts of heavy calcium carbonate, 160 to 180 parts of an acrylic emulsion, 7-9 parts of ethylene glycol, 1.2 to 1.6 parts of a multifunctional amine auxiliary agent, 1.8 to 2 parts of a coalescing agent, 40 to 120 parts of sand, 2-2.5 parts of a preservative, 2-3 parts of a thickening agent, and 2.5 to 3.5 parts of semi-carbonized fiber. The stone-like coating provided by the invention has the advantage of crack resistance.

A nail care tool having an ergonomic elongated handle and a removable operational head attached to the handle is presented. The tool also has a removable scraper or end tip inserted in one of the ends of the handle, useful in cleaning critical cuticle areas. The operational head has adhered to it a lining of material commonly used in the nail care and maintenance processes; for instance, it may be a nail polish removal material or a nail buffing material. In some embodiments of the invention, the ergonomic handle and the head are interconnected in a nonpermanent manner by a male/female system; in such embodiments, the head may be engage or connected to the handle by screwing the head to the handle and, it may be disengaged or disconnected, by simply unscrewing it from the handle. In other embodiments of the invention, the handle is connected to the head by a hold/release system, allowing the User to connect the head and the handle by inserting an already assembled cartridge inside the handle into a rectangular internal cavity on the head. In order to disconnect the head from the handle, the User slides backwardly a button on the ergonomic handle without even having to touch the head. The hold/release system allows the User to easily attach or detach heads to the handle. The operational removable head required for any of the embodiments may have different shapes and operational lining materials, in order for the User to use the tool as an applicator—meaning being able to remove most of the nail polishes—or as a nail buffer.