68results about How to "Maintain tensile strength" patented technology

A novel paper article, a method of making a paper product, and an embossing roll are disclosed for providing a paper surface region having a minority of fiber to fiber bonds broken in the paper surface region to a depth less than about 0.02 mm from the paper surface. In one aspect, the roughened embossing roll includes protuberances or depressions sized at less than about 0.1 mm. In one aspect, the roughened embossing roll includes protuberances or depressions adapted to produce paper product surface deformations in the paper surface, wherein the paper product surface deformations are invisible to an unaided human eye. The present invention provides a paper product having higher perceived softness while maintaining tensile strength.

The invention discloses an anti-fingerprint TPU protective film for a 3D curved screen. The protective film comprises a low-viscosity protective film, an anti-fingerprint UV hardening coating, an optical hard TPU resin film layer, an optical-grade high-viscosity silica gel pressure-sensitive adhesive layer and a fluorine element release film which are attached from top to bottom; the anti-fingerprint UV hardening coating is formed by coating an anti-fingerprint UV hardening coating; the optical hard TPU resin film layer is formed by coating optical hard TPU glue, the optical-grade high-viscosity silica gel pressure-sensitive adhesive layer is formed by coating an optical-grade high-viscosity silica gel pressure-sensitive adhesive; the anti-fingerprint UV hardening coating is prepared fromthe following components: UV prepolymer resin, an acrylate reactive diluent, a photoinitiator, a slipping aid and a first solvent, the optical-grade hard TPU glue is formed by polymerizing polyisocyanate, polyester polyol and a chain extender in a second solvent under the action of a first catalyst; the optical-grade high-viscosity silica gel pressure-sensitive adhesive is composed of silica gel resin, a cross-linking agent, an anchoring agent and a second catalyst. The anti-fingerprint TPU protective film for a 3D curved screen has the properties of fingerprint resistance, scratch resistance,difficulty in bursting and good fitting property of the curved screen.

The present invention relates to an absorbent laminate structure, and disposable absorbent article incorporating the structure, wherein first and second absorbent matrices comprising particulate superabsorbent polymeric material and filamentary adhesive are arranged between two outer substrate layers. The relatively porous, intermediate or central substrate layer, positioned between the absorbent matrices, promotes liquid transport within the laminate structure.

A silent chain includes guide plates each of which has a cut-away portion on its inner side and a cut-away portion on its outer side for allowing elastic deformation of the guide plate in the longitudinal direction of the chain so that bowing of the connecting pins of the chain is reduced, and galling of the connecting pins and unbalance of the loads on the link plates of the chain are suppressed. The deepest parts of the respective cut-away portions are longitudinally offset from each other so that longitudinal elastic deformation can occur without impairing the tensile strength of the guide plate.

The invention is related to mild pretreatment or preparation process as well as combined scoring and bleaching composition for cellulose-based textile material. The process comprises a sequential or simultaneous scouring step with an enzyme composition acting on the non-cellulosic material on outer layers of cellulosic fibers and a reducing bleaching step with a reducing bleaching agent. The reducing bleaching agent is preferably dithionite. In the process no adjustment of pH and temperature are required. The process is environmentally friendly because no causticizing and oxidizing agents are required to achieve the desired lightness and wettability. Due to the mild pretreatment conditions tensile strength of the fabric is better than that achieved with conventional pretreatments.

The invention provides a hydrolysis resistant high temperature resistant thermoplastic polyester elastomer composition including 100 parts by weight of polyester elastomer (A); 0.01-10 parts by weight of poly carbodiimide (B); 0.01 to 0.5 part by weight of a phenolic heat stabilizer (C); 0.01 to 0.5 part by weight of a thio ester heat stabilizer (D); and 0.01 to 0.5 part by weight of an aromatic amine heat stabilizer (E). The hydrolysis resistant high temperature resistant thermoplastic polyester elastomer composition still can effectively maintain the tensile strength and elongation at break in the long time exposure to hygrothermal environment, after 90 days of hydrolysis resistance test of the composition dipping in hot water at the temperature of 95 DEG C, the tensile strength is maintained above 25Mpa, the elongation at break is remained above 482%; and after 168h of heat resistance test at the temperature of 158 DEG C, the tensile strength is maintained above 81%, so that the hydrolysis resistant high temperature resistant thermoplastic polyester elastomer composition can be applied in higher-end areas.

The invention discloses a three-dimensional seawater evaporator and applications thereof. The three-dimensional seawater evaporator comprises a channel structure with moisture absorption and transportation effects, and a reactor unit with photothermal conversion effect, wherein the reactor unit is located at one end of the channel structure, the channel structure and the reactor unit form a three-dimensional structure, and the reactor unit comprises macromolecule functionalized paper. The three-dimensional seawater evaporator disclosed by the invention has the characteristics of simple structure, small size, three-dimensional omnidirectivity and the like; and by reasonably designing the composition, the shape and size of the channel and the composition, the geometric structure and the likeof the reactor unit, high efficiency and high ion interception in the sea water desalination process can be realized, so that the three-dimensional seawater evaporator has wide application prospect in the field of seawater desalination.

A preparing method of an oil-proof modified composite environment-friendly rubber base material is disclosed. The method includes preparing graphene oxide having a high oxidation degree, modifying the graphene oxide and preparing the oil-proof modified composite environment-friendly rubber base material. The base material adopts pitch-based carbon fibers to enhance mechanical properties, and can greatly adsorb and clean harmful gas and dust compounds in tail gas. Prepared MC nylon has an advantage of good comprehensive properties. The base material can be used for works under various bad conditions. Added components can effectively ensure no easy combustion of a protected material, and do not generate gas harmful to human bodies during combustion at overhigh temperatures. Compared with hydrotalcite in the market at present, the base material has obvious advantages in the fields of high-temperature resistance, fire protection and flame retardance.

The invention provides medical wound dressing containing nano polysaccharides, and belongs to the technical field of medical wound dressing. The medical wound dressing comprises wet dressing, and thewet dressing is hydrocolloid dressing or hydrogel dressing or silicon gel dressing or alginate dressing. The medical wound dressing is characterized in that nano polysaccharide compounds or derivatives are also added to the wet dressing, and the added nano polysaccharide compounds or derivatives are one or more of cellulose, starch, chitin, chitosan or derivatives; the particle size of the polysaccharide compounds or derivatives is 200nm-1000nm; and the parts by mass of the polysaccharide compounds or derivatives and the wet dressing are respectively 0.1-20 parts and 70-115 parts. The medicalwound dressing provided by the invention has the advantages that the nano polysaccharides and the wet dressing are mixed, so that the wound dressing can quickly absorb wound exudate and has good moisture keeping performance; and furthermore, the mechanical performance of the dressing can be enhanced in an auxiliary mode.

The invention relates to a reed numerically-controlled machine tool steel wire tensity examination and the revolving twist. Rope installment, which belongs to the area of many reed numerically-controlled machine tool process technology. This invention installment mainly includes the reducing decelerate the electrical machinery, the transmission gear gudgeon, the steel wire tensity sensor system, the steel wire guide mechanism and so on. Its characteristic is as follows: the servo decelerates electrical machinery is one or two, the transmission gear including the drive gear and the driven gear is one pair or two pairs, and the gudgeon is one decked or double-decked. Because this invention installment s simply to be controlled, it raises the steel wire introduction's efficiency and many reed production's efficiency, reduces the labor intensity, and avoids the steel wire having the plastic deformation. Besides it raises many reed product manufacture qualified rate and the service life, and can survey the steel wire's actual tensity, thus it guaranteed each steel wire's tensity uniformly and so on. Therefore this invention may widely used in many reed processing profession, many reed which is produced by this invention can be widely applied in the frequency reciprocating motion equipment of the high sky in the automobile, aviation, machinery department and so on.

The invention discloses a biodegradable tissue engineering urethral stent and a preparation method thereof. The biodegradable tissue engineering urethral stent is made of a copolymer formed by polylactic acid-co-glycolate, polycaprolactone and a solubilizer according to the weight ratio of 70 to 30 to (2-10). The preparation method of the biodegradable tissue engineering urethral stent comprises the following steps of a) blending preparation of a modified material solution, b) medical image processing and modeling, c) 3D template printing and d) stent preparation. PLGA and PCL biodegradable polymers are subjected to solution co-mixing modification, and triethyl citrate is added as the solubilizer, and the blending ratio and the content of the solubilizer are adjusted, so that the toughnessof the modified material is relatively and greatly improved while the flexibility and the tensile strength are kept; and based on a 3D printing technology and in combination with medical image data and software processing, a soluble template can be printed for the focus of a patient, and the personalized tissue engineering urethral stent is prepared.

An austenitic heat-resistant cast steel includes 0.1 to 0.6% by mass of C, 1.0 to 3.0% by mass of Si, 0.5 to 1.5% by mass of Mn, 0.05% by mass or less of P, 0.05 to 0.3% by mass of S, 9 to 16% by mass of Ni, 14 to 20% by mass of Cr, 0.1 to 0.2% by mass of N, and the balance of iron and inevitable impurities, in which a matrix structure of the austenitic heat-resistant cast steel is configured of austenite crystal grains, and a ferrite phase is dispersed and interposed between the austenite crystal grains so as to cover the austenite crystal grains.

The invention discloses a preparation method of a tear-resistant modified composite environment-friendly rubber base material. The method comprises the following steps: preparing graphene oxide with high oxidation degree; and modifying the graphene oxide to prepare the tear-resistant modified composite environment-friendly rubber base material. In the invention, by adopting asphalt-based carbon fiber, the mechanical property of the material is enhanced, the harmful gases and dust matters in tail gas can be greatly adsorbed and eliminated, and the obtained MC nylon has good overall performance. By cooperatively adopting the main materials including epichlorohydrin rubber, nitrile butadiene rubber, acrylonitrile-butadiene copolymer rubber, diene rubber, styrene butadiene rubber and regenerated rubber, the toughness of the material is greatly improved, and the condition that a conveyer belt is easily broken is effectively solved; meanwhile, gases harmful to a human body are not generated at relatively high temperature; and through perfect fusion of the high-temperature resistance, tear resistance and the like, the tear-resistant modified composite environment-friendly rubber base material provided by the invention can be applied to various severe conditions. The added components not only effectively ensure that the protected material is not burnt easily, and but also avoid the generation of gases harmful to the human body when being burnt at extremely high temperature; and compared with the hydrotalcite currently applied on the market, the tear-resistant modified composite environment-friendly rubber base material has obvious advantages of high-temperature resistance, fireproof property and flame retardance.

A method for producing an aluminum foil of the present invention is characterized in that an aluminum film is formed on a surface of a substrate by electrolysis using a plating solution containing at least (1) a dialkyl sulfone, (2) an aluminum halide, and (3) at least one nitrogen-containing compound selected from the group consisting of an ammonium halide, a hydrogen halide salt of a primary amine, a hydrogen halide salt of a secondary amine, a hydrogen halide salt of a tertiary amine, and a quaternary ammonium salt represented by the general formula: R¹R²R³R⁴N.X (R¹ to R⁴ independently represent an alkyl group and are the same as or different from one another, and X represents a counteranion for the quaternary ammonium cation), then the film is separated from the substrate to obtain an aluminum foil, and the obtained aluminum foil is subjected to a heat treatment.

Masonry (1) comprising layers (2) of bricks and mortar joints (3), whereby at least one mortar joint (3) is reinforced by a reinforcement strip (4), whereby said strip (4) comprises at least two straight, continuous, substantially parallel, steel reinforcement wires (5), which are welded or glued to each other by means of a steel wire connecting structure (6), characterised in that the wire connecting structure (6) is provided with protuberances (7) protruding from the plane comprising said at least two straight reinforcement wires (5) and forming spacing elements (7) which keep the at least two straight reinforcement wires (5) at a specific distance from the layer (2) of bricks below and/or the layer (2) of bricks above said reinforcement strip (4).

The invention discloses a preparation method of a rapidly dissolving magnesium alloy, and belongs to the technical field of metal material corrosion. The method includes the following steps: preparinga magnesium ingot, a nickel ingot, a copper ingot, an iron ingot and a silicon ingot, and after melting part of the magnesium ingot, adding the rest of the alloy ingots for primary smelting and casting to obtain a magnesium alloy intermediate material; and then, after secondarily melting the remaining magnesium ingot, adding the magnesium alloy intermediate for secondary melting and casting to obtain the magnesium alloy material. The corrosion rate of the magnesium alloy is high, which meets the demand for the rapidly dissolving magnesium alloy for industrial production; and besides, the corrosion rate of the magnesium alloy can be adjusted. Under the condition of a 5% NaCl solution at 25 DEG C, the magnesium alloy has the corrosion rate reaching 702-2163 mm/a, the tensile strength reaching 231-283 MPa and the compressive strength reaching 386-456 MPa.

The present invention provides a vehicle collision energy absorbing member formed by shaping a thin steel sheet. At least one of the thin steel sheet and the vehicle collision energy absorbing member has tensile properties of a tensile strength TS of 980 MPa or more and a yield point elongation Y-El of 2% or more.