820 results about "Compressive deformation" patented technology

A molding base paper used for forming paper vessels such as a cup or tray for foods and various industrial products is disclosed which satisfies the following conditions (1) to (4): (1) a tensile strength (JIS-P 8113) of at least 2.0 kN/m, (2) an elongation at break (JIS-P 8113) of at least 1.5%, (3) a critical compression stress, defined by the following formula, in the range of 1 to 10 MPa: <paragraph lvl="0"><in-line-formula>critical compression stress=A/B </in-line-formula>wherein A represents the compression strength determined by JIS-P 8126, and B represents the area of loaded part of the test piece in the determination of the compression strength, and (4) an amount of the compression deformation, caused by applying compression stress of 20 kgf/cm2in thickness direction, of at least 10 %. The paper vessels are prepared by controlling the water content of the molding base paper at 10 to 20% and then drawing the molding base paper at 100 to 150° C.

A syringe is provided that includes a barrel including a nozzle having an interior opening. A plunger rod of the syringe has a first end and a second end. The second end includes an extension dimensioned to ensure that a member, disposed with the second end and enclosing the extension, abuts the interior opening. The barrel may include a distal wall that supports the nozzle and the plunger rod may include a correspondingly configured distal face. The extension may include a longitudinal length such that upon engagement of the member with the interior opening, the length of the extension prevents compressive deformation of the member between the distal wall and the distal face. The member can have a transverse wall and a cylindrical sidewall extending along the second end of the plunger rod. The transverse wall may have a substantially uniform thickness. The extension defines a distal portion which may be dimensioned for selective engagement of the member with the interior opening.

The invention relates to an efficient distribution dryer which comprises a box housing. Two ends of the housing are provided with a cloth inlet and a cloth outlet. The housing is provided with an air inlet at the top and an air outlet at the bottom, or provided with an air inlet at the bottom and an air outlet at the top. A distribution conveying mechanism is disposed in an inner cavity of the housing. A heating pipe and a bower outside the heating pipe are disposed at the air inlet. The efficient distribution dryer is characterized in that transversely extending partitions are disposed in the inner cavity of the housing, and a plurality of intake through holes are arranged on the partitions in directions, along the distribution conveying direction and transversely perpendicular to the distribution conveying direction. The partitions with intake through holes are disposed in the efficient distribution dryer and disperse hot air from the single air inlet, so that local superheating and compressive deformation are prevented, drying quality is guaranteed and overall drying efficiency is also improved.

The invention relates to a fiber reinforced rubber, for which the strength can be remarkably improved, the permanent compression set can be reduced and the anti-tear performance of rubber sheet can be enhanced. A method for preparing the fiber reinforced rubber comprises the following steps: a. mastication of rubber; b. reinforcing filler, fiber and accessory ingredient are added into the rubber for mixing; wherein, the fiber and the reinforcing filler is evenly mixed to prepare pre-dispersoid, and the pre-dispersoid is added into the rubber. As a preferred proposal, the method adopts styrene-butadiene rubber, nitrile rubber and neoprene which have the good properties of wearing resistance, pressure resistance, oil and water resistance and air tightness resistance as the rubber. The rubber sheet produced by the method can work under ultra-high temperature and pressure in various media for a long time with the maximum working temperature being 300 DEG C, and maintains good elasticity, less compressive deformation and excellent physical and mechanical properties which are reduced by not more than 20% compared with those at the normal temperature.

The invention relates to a low-compressive-deformation and high-conductivity rubber composite material and a preparation method thereof. The low-compressive-deformation and high-conductivity rubber composite material is prepared by the following steps of: taking silicon rubber as a base body and utilizing modified grain-shaped and fiber-shaped metal-plating conductive fillers containing a reactive double-bond silane coupling agent under a CO2 supercritical state to prepare low-compressive-deformation and high-conductivity rubber composite material. Under the condition of guaranteeing the high conductivity, the use amount of the conductive fillers is reduced and the composite material has low compressive deformation and high conductive property.

Conductive particles each includes a polymer base particle and a conductive layer coating the polymer base particle. Let the compressive elastic deformation characteristic K_X of one conductive particle when the displacement of particle diameter of the conductive particles is X % be defined by the following formula: K_X=(3/√2)·(S_X^−3/2)·(R^−1/2)·F_X. F_X is the load (N) necessary for X % displacement of the conductive particles. S_X is the compressive deformation amount (mm) upon X % displacement of the conductive particles. R is the particle radius (mm) of the conductive particles. The compressive elastic deformation characteristic K₅₀ when the displacement of particle diameter of the conductive particles is 50% is 100 to 50000 N/mm² at 20° C., and the recovery factor of particle diameter of the conductive particles when the displacement of particle diameter of the conductive particles is 50% is not less than 30% at 20° C.

The invention relates to a conductive silicon rubber material with ultralow compressive deformation and low hardness and a preparation method thereof and belongs to the technical field of conductive silicon rubber materials. The rubber material is prepared by filling conductive fillers with different shape factors so as to ensure that a network passage is formed under the condition of low-usage conductive filler. The rubber material comprises the following ingredients in parts by mass: 100 parts of silicon rubber, 1-15 parts of vulcanizing agent, 0 or 1-8 parts of vulcanizing assistant, 5-15 parts of carbon black and 0.5-5 parts of carbon nanotubes. According to the material, the material is endowed with higher conductivity under the condition that lower compression permanent deformation and lower hardness are guaranteed; the preparation process is simple, and the cost is low; and through testing the electrical and mechanical properties of the material, the conductive silicon rubber material has the following properties: the Shore A hardness is not higher than 50, the 25% constant compression permanent deformation is not higher than 10% (100 DEG C * 24 h), the instantaneous resilience performance is not lower than 60%, and the volume resistivity is not higher than 50 omega.cm.

An inner sole structure 3 for a sports shoe 1 includes an upper sheet member 30 disposed on an upper side of a heel region of the shoe 1, a lower sheet member 31 disposed below the upper sheet member 30, and a wavy corrugated sheet member 32 that is interposed between the upper sheet member 30 and the lower sheet member 31, that has at least two downwardly protruding protrusions 32a, 32b adapted to form voids V₀, V₁′, V₁ with the upper and lower sheet members 30, 31, and that is in contact with an upper surface 31a of the lower sheet member 31. Each of downwardly convex portions 32a₁, 32b₁ of the protrusions 32a, 32b of the wavy corrugated sheet member32 slides longitudinally on the lower sheet member 31 at the time of compressive deformation of the protrusions 32a, 32b.

The invention provides a rubber composite used for rubber framework oil seal and a preparation method thereof. The rubber composite contains(based on weight portions) 100 portions of fluorubber26, 5-6 portions of acid absorber magnesia, 5-6 portions of calcium hydroxide, 9-1 portions of strengthening agent black carbon, 19-20 portions of barium sulphate, 17-19 portions of iron oxide red, 2-3 portions of process additive, 1.5-2 portions of curing ingredient bisphenol AF, and 0.6-0.8 portions of accelerant BPP. The rubber composite improves the tension strength, extensibility, tear resistance, self-lubricating effect, compressive deformation resistance and thermal aging resistance of the rubber framework, makes the rubber framework good in medium resistance and prolongs the service life of the rubber framework oil seal. Meanwhile, the method is simple in process, reasonable in mixture ratio and reduces preparation cost and defective index.

To provide a toner, which contains a colorant, a binder resin, and a releasing agent, wherein the toner satisfies the following (a) to (c); (a) the toner contains at least a polyester resin as the binder resin; (b) the toner has Tg1st of 25° C. to 50° C.; and (c) the toner has a TMA compressive deformation rate (TMA %) of 10% or lower at 50° C. under a condition having relative humidity of 70%, wherein the Tg1st is glass transition temperature of the toner for first heating, as the toner is measured by a DSC system (a differential scanning calorimeter).

Toner contains a binder resin, wherein the binder resin contains a block copolymer A containing a crystalline segment X and a non-crystalline segment Y, wherein the toner has a thermo-mechanical analysis (TMA) compressive deformation amount (TMA %) of 10% or less at 50° C. and a relative humidity of 90%, wherein the toner has a spin-spin relaxation time (t130) of 10 ms or greater at 130° C. as measured by pulse nuclear magnetic resonance (NMR), wherein the toner has a spin-spin relaxation time (t′70) of 1 ms or less at 70° C. as measured by pulse NMR when descending from 130° C. to 70° C.

The invention provides a ring spun negative-Poisson's-ratio yarn which includes relatively rigid and externally wrapped-wound endless tows and relatively flexible short fiber strands located in a yarn core. The negative-Poisson's-ratio compound structural yarn obtained through asymmetrical two-axis system compound spinning on a ring spinning frame. When the yarn is stressed and stretched, the stretch wound spirally and externally are straightened, the original straightened and thicker short fiber strands are thus spirally wound externally, so that a yarn body becomes thick to form negative-Poisson's-ratio deformation. The invention also provides a compound spinning device and method and application of the ring spun negative-Poisson's-ratio yarn. The short fiber strands are directly straightened through compound spinning on the ring spinning frame and are output at a central shaft position from a front roller jaw. The endless tows are output from the front roller jaw in a tension-free overfeeding mode and are externally wrapped, wound, compounded and twisted with the short fiber strands at a certain converging angle in an obvious-compressive deformation mode to form the yarn. The device is simple in structure and convenient to operate, and the obtained negative-Poisson's-ratio yarn can be used for negative-Poisson's-ratio fabrics and has a more obvious negative-Poisson's-ratio effect.

The invention discloses a novel miniature optical fiber Fabry-Perot pressure sensor and a manufacturing method thereof. According to the sensor, the defects that large light energy loss is caused because a traditional optical fiber Fabry-Perot sensor generates non-planar movement when a pressure sensitive film is pressed can be effectively overcome, and higher measurement accuracy can be obtained. The provided miniature optical fiber Fabry-Perot pressure sensor comprises a monocrystalline silicon film and a borosilicate optical fiber which are connected through an anodic bonding process, wherein the monocrystalline silicon film comprises a boss; the borosilicate optical fiber comprises a concave cavity; one side of the monocrystalline silicon film with the boss and the concave cavity of the borosilicate optical fiber relatively form a Fabry-Perot cavity; a reflecting surface is formed on the top of the boss. The sensor has the advantages that two reflecting surfaces of the Fabry-Perot cavity are always kept to be parallel to each other in the compressive deformation of the sensitive film, and the measurement accuracy is greatly improved.

The invention relates to a flexible conductive composite fabric, and preparation and application thereof. The flexible conductive composite fabric comprises a conductive composite film (1), a base fabric (2) and an adhesive (3), wherein the base fabric (2) is adhered on the upper and lower surfaces of the conductive composite film through the adhesive (3); and two ends of the conductive composite film (1) are respectively adhered with an electrode. The flexible conductive composite fabric is prepared through the following steps: impregnating a carbon nanotube thin film in a graphene suspension, then taking the carbon nanotube thin film out of the graphene suspension, and carrying out drying in the air so as to obtain a carbon nanotube/graphene composite film; allowing a polyaniline nanowire array to grow in situ on the surface of the carbon nanotube/graphene composite film so as to obtain a carbon nanotube/graphene/polyaniline composite film; and respectively adhering an electrode at two ends of the composite film, coating the base fabric on the upper and lower surfaces of the composite film through the adhesive, and carrying out curing so as to obtain the flexible conductive composite fabric. The prepared conductive fabric provided by the invention has good conductivity, can reach 103 S/m to 105 S/m, can bear a certain degree of bending and compressive deformation, and is extensively applied in the fields of intelligent textile structures and intelligent materials.

The invention relates to a foaming section bar of multi-point positive feedback springback material with memorability and a preparation method thereof. The foaming section bar comprises a structural support which is composed of distributed enclosed air bags, and network pressure releasing structures which are distributed between enclosed air bags and comprise intercommunicated and open air passages that extend to the outside; the formula comprises the following components: 70-98 parts of degradable thermoplastic elastomers, 0.1-15 parts of a foaming agent, 0.05-0.5 parts of a nucleating agent,and 0-10 parts of a functional auxiliary agent. Compared with the prior art, compressive deformation and bounciness of countless enclosed air bags in the foaming section bar product are restrained and concentrated on relatively uniform surfaces by open air passages or capillaries, so that the product has positive multi-point feedback function.

The invention discloses a severe plastic deformation method and a severe plastic deformation device for pressing and rolling the corner of a non-equal channel. According to the severe plastic deformation method and the severe plastic deformation device for pressing and rolling the corner of the non-equal channel, an equal-channel angular pressing (ECAP) technology and an ARB (Accumulative Roll Bonding) technology are integrated. The concrete process comprises the following steps that pressing force is applied after a test sample, a punching head and a mould are simultaneously preheated to pressing and rolling temperature, so that the test sample passes through the position of the channel corner of the device for pressing and rolling the corner of the non-equal channel completely; compressive deformation is generated when shear deformation is generated by the test sample so as to finish a first pass pressing and rolling process; the test sample is cut into L1/L2 parts along a length direction, and the L1/L2 parts are placed in an I channel; and the steps are repeated so as to finish multi-pass pressing and rolling deformation. The mould of the device is provided with the I channel and an II channel which are intersected and also have non-equal sections. The design is reasonable, the structure is simple, and the manufacturing cost is low. According to the method disclosed by the invention, the advantages of the ECAP technology and the ARB technology are integrated, and the mechanical property of a material is effectively enhanced. The process is short in procedure, high in efficiency and low in cost and is simple to operate. The severe plastic deformation method and the severe plastic deformation device for pressing and rolling the corner of the non-equal channel can be widely used for the field of processing metal materials, such as pure metal and alloy.

A bumper system having a bumper running transverse to the longitudinal direction of a vehicle and at least one connecting element mounted thereon for the purpose of attaching the bumper to a vehicle, in particular to a longitudinal beam of a passenger car. The connecting element is a multi-chamber extruded section of metal with longitudinal axis running in the longitudinal direction of the vehicle. The connecting element is in the form of a safety element which, under impact, absorbs impact energy by compressive deformation. For the purpose of connecting a towing device, an attachment member is provided that is situated in one of the hollow chambers of the connecting element.

A sanitary napkin includes a main body having a liquid-absorbent layer for absorbing and retaining liquid and a projection disposed on a body surface of the main body. The projection has a resistive portion provided with a resistive member for resisting compressive deformation of the projection toward the main body and a flexible portion not provided with the resistive member. The flexible portion is longitudinally stretchable and subjected to a longitudinal elastic contractive force.