55results about How to "Moderate rigidity" patented technology

The invention is a molecularly imprinted polymer and a preparation method thereof. The name of the molecularly imprinted polymer is a molecularly imprinted polymer containing a three-membered phenanthrene ring skeleton, and its preparation method is: using maleic rosin ethylene glycol propylene ester as a crosslinking agent, dehydroabietylamine or theophylline as a template molecule, Acrylic acid or derivatives of acrylic acid such as methacrylic acid, methyl methacrylate, acrylamide, etc. are used as monomers, in a 500 ml three-necked flask, gasoline-chloroform-water mixed solvent is used as a solvent, an initiator is added, heated, Stir and carry out free radical suspension polymerization to obtain a polymer product, then use a methanol-acetic acid mixture to elute the polymer in a Soxhlet extractor, remove the template molecule dehydroabietylamine or theophylline, and obtain a Molecularly imprinted polymers, that is, molecularly imprinted polymers containing a three-membered phenanthrene ring skeleton, can be used for the adsorption and separation of organic compounds.

A gas barrier sheet comprising a substrate, an anchor film formed on one surface of the substrate, and a gas barrier film formed on the anchor film, the anchor film comprising a siloxane polymer composed of a siloxane compound and a compound A having in its molecule a functional group that can react with hydroxyl group in the siloxane compound, the gas barrier film being a SiN_xO_y film (x=0.5-1.5, y=0.15-1). The gas barrier sheet has good transparency and high heat resistance, hardly curls, and is excellent in hard coating property, in gas-barrier properties and in the adhesion between its constituent films. Particularly, the gas barrier sheet remains uncurled and retains its gas-barrier properties even after it has undergone a heat cycle test which is carried out to test the durability of an organic EL display or the like.

The invention discloses a self-repairing solid-state hybrid dynamic polymer. The self-repairing solid-state hybrid dynamic polymer contains sulfydryl-Michael addition bond dynamic covalent crosslinking and supermolecular hydrogen bond interaction, wherein the sulfydryl-Michael addition bond dynamic covalent crosslinking reaches above a gel point in at least one crosslinking network; sulfydryl-Michael addition bonds are obtained through sulfydryl-Michael addition reaction between sulfydryl groups and electron-deficient conjugate alkenes/enynes; the supermolecular hydrogen bond interaction contains hydrogen bond interaction involving at least one from side hydrogen bond groups, backbone hydrogen bond groups and other end hydrogen bond groups; with dynamic reversibility, the sulfydryl-Michaeladdition bonds and the supermolecular hydrogen bonds endow the self-repairing solid-state hybrid dynamic polymer with good plasticity, self-repairability, repeatability, reusability and recoverability and ensure that the self-repairing solid-state hybrid dynamic polymer can be widely applied to self-repairing materials, flexible materials, shape memory materials, energy storage device materials and the like.

The invention relates to an industrial polyester filament for a high-strength ultra-low-elongation safety belt and a production method of the industrial polyester filament. The production method comprises the following steps of: A) high-viscosity polyester chip preparation; B) high-viscosity polyester chip impurity removal; C) melt spinning; and D) drafting, heat setting and winding. The number of the industrial polyester filaments produced by adopting the method is 72-144F, the fineness is 1100-2222dtex, the breaking strength can reach more than 7.80cN/dtex, the fixed-load elongation can reach 4-6 percent under a condition of 11.1KN and the controllable oil content is lower than 0.30-0.60 percent. The industrial polyester filament for the high-strength ultra-low-elongation safety belt and the production method of the industrial polyester filament have the beneficial effects that the breaking strength of the safety belt which is provided by using the obtained industrial polyester filaments can reach 35KN and is much higher than the breaking strength being 28-33KN of the existing safety belt, the physical and mechanical performance is good and the industrial polyester filament is an optimum raw material for producing front-row safety belts; the weaving performance is good, the dyeing uniformity of the safety belt is good due to lower fiber oil content, the gloss is stable, and chromatic aberration and stains do not exist; the waste polyester fibers can be recycled, the energy is saved, the environment is protected and the operating cost is reduced; and the operation is simple to conduct, the process flow is short, the automation level is high and the development space is very great.

The invention discloses an antibacterial and odor removing fiber bed core. The fiber bed core comprises at least one middle layer and a surface layer which is arranged on the upper surface or the lower surface of the middle layer, wherein the surface layer comprises a non-woven fabric prepared from the following components in percentage by weight: 15-40% of low melting point fibers and 60-85% of polyester fibers; and the middle layer comprises the following components in percentage by weight: 60-85% of raw bamboo fibers and 15-40% of low melting point fibers. The invention further discloses a preparation method of the fiber bed core; and the preparation method comprises the following steps: respectively preparing each layer including an upper surface layer, a lower surface layer and the middle layer; laying the upper surface layer, the lower surface layer and the middle layer in sequence; drying the upper surface layer, the lower surface layer and the middle layer in a drying box; and coldly rolling, cooling, cutting, inspecting and packaging the upper surface layer, the lower surface layer and the middle layer. The fiber bed core disclosed by the invention has the advantages as follows: antibacterial and odor removing properties, elasticity and bulkiness, healthcare property, ultraviolet resistance, moisture absorbing and removing properties and environment friendliness of the fiber bed core are greatly improved when being compared with those of a traditional mattress.

The invention discloses a flexible nerve photoelectrode for nerve recording and stimulation and a preparation method of the flexible nerve photoelectrode. An existing nerve electrode can only collectsignals, cannot stimulate the brain, and is often too rigid or too soft, thereby result in difficult brain injury or implantation. The flexible nerve photoelectrode for nerve recording and stimulationdisclosed by the invention comprises a recording layer, an electromagnetic shielding layer and a photostimulation layer, wherein the recording layer, the electromagnetic shielding layer and the photostimulation layer which are sequentially stacked together form a neural photoelectrode structure; the tip of a probe is provided with an exposed recording electrode point; the photostimulation layer on the probe forms an optical waveguide structure with a rectangular cross section; an LD placement groove is formed in the photostimulation layer on an electrode base body; a stimulation light sourceis arranged in the LD placement groove; and the stimulation light source is aligned with an optical waveguide structure on the probe. The flexible nerve photoelectrode has good flexibility, the SU-8 photoresist provides proper rigidity, and bending of the electrode probe during implantation is avoided while the light transmission efficiency is improved.

A combination buttonhook and zipper puller having a tapered elongated portion can be inserted in buttonholes of different sizes to grasp buttons of different sizes for buttoning. A discontinuity in the outer periphery of the invention permits the tapered elongated portion to be formed in the shape of a hook for inserting into a zipper handle for raising or lowering a zipper.

The invention relates to a seal ring on a cover plate component, the cover plate component, an upper cover component and an electric appliance. The seal ring comprises an installation part and a sealing part which are integrally connected, the longitudinal cross-section of the installation part is shaped like an upside-down L, the installation part is installed on one side face of the cover platecomponent in a sealed mode, and the sealing part extends out of one side face of the cover plate component in the direction deviating from the cover plate component; when the cover plate component isbuckled on a cooking ware, the sealing part abuts against the edge of an opening of the cooing ware, and an elastic structure used for lowering the extrusion deformation stress of the sealing part isarranged on the side face, located outside the cooking ware, of the sealing part. Accordingly, the sealing part is arranged to be of a V-shaped structure, stiffener is arranged on the inner side of the bending part of the V-shaped structure, the elastic structure is arranged on the stiffener, the rigidity of the seal ring is enhanced, the extrusion deformation stress of the seal ring is lowered, and the seal ring is likely to recover after being extruded.

The invention discloses a rosinyl functional polymer immobilized amylase and a preparation method thereof. The amylase is a maleated rosin glycol acrylic ester-acrylic acid copolymer immobilized amylase prepared from a maleated rosin glycol acrylic ester-acrylic acid copolymer and an amylase. The activity is between 20 and 30mg.g<-1>.5min<-1>, the residual activity after being repeated use for thirteen times is not lower than 6 mg.g<-1>.5min<-1>, and the relatively retained activity is not lower than 20 percent. The invention also discloses the preparation method for the immobilized amylase. The immobilized amylase can be used for catalyzing the starch to be hydrolyzed to generate dextrin and reducing sugar, and has wide application in the food, light industry and medicine fields.

The invention discloses an enhanced AES composition for an outdoor sound equipment shell and a preparation method and application thereof. The reinforced AES composition comprises the following components in parts by weight: 40-60 parts of AES resin, 40-50 parts of PBAT resin, 5-30 parts of glass fibers, 0.5-10 parts of a compatilizer, 0.1-5 parts of a coupling agent, 0.1-5 parts of a lubricant and 0-5 parts of an antioxidant, the melt flow rate of the AES resin under the conditions of 220 DEG C and 10 kg is 20-35 g/10 min, and the intrinsic viscosity of the PBAT resin is 2.0-2.8 dl/g. The enhanced AES composition for the outdoor sound equipment shell is developed by selecting the AES resin with the specific solution flow rate and the PBAT resin with the intrinsic viscosity and mutual cooperation and synergistic interaction of the glass fibers, the compatilizer, the coupling agent and other components, has excellent toughness and is not prone to brittle rupture, and the anti-falling performance of the enhanced AES material is greatly improved; the enhanced AES composition also has appropriate rigidity, and the prepared AES product can provide a high-quality sound quality effect for the sound equipment as a shell of the outdoor sound equipment.

Belonging to the technical field of catalysts, the invention provides a polymer carrier loaded trans-1, 4-polyisoprene titanium catalyst and a use method thereof. The catalyst comprises a main catalyst and a cocatalyst. The preparation method of the main catalyst includes: firstly reacting a metal-organic halogen compound with a carrier, then carrying out reaction with a halide of transition metaltitanium, and performing washing to obtain a loaded solid catalyst. The carrier is cyano functionalized monodisperse porous styrene-divinylbenzene copolymer microspheres. The cocatalyst is alkyl aluminum, has a general formula of AlRnX3-n, wherein R is hydrocarbonyl with a carbon atom number of 1-20, X is halogen atom, and n is greater than or equal to 1 and smaller than or equal to 3. The invention also provides a use method of the polymer carrier loaded trans-1, 4-polyisoprene titanium catalyst. The catalyst has more stable catalytic activity, and the obtained product has good form.

The invention belongs to the technical field of current transformer detection, and particularly relates to automatic detection experimental equipment for a current transformer. The equipment comprisesa frame, and a feeding mechanism, a grabbing mechanism, an experiment detection mechanism, a feeding conveying belt and a discharging conveying belt which are arranged on the frame. The feeding conveying belt and the discharging conveying belt are both arranged in the Y-axis direction. The experiment detection mechanism is arranged between the feeding conveying belt and the discharging conveyingbelt, and is used for detecting a current transformer. The feeding mechanism is arranged above the feeding conveying belt and is used for placing the current transformer on the feeding conveying belt.The grabbing mechanism is arranged at the end of the feeding conveying belt and the end of the discharging conveying belt and is used for conveying the current transformer between the feeding conveying belt and the experiment detection mechanism and between the experiment detection mechanism and the discharging conveying belt. Manual feeding, wiring and detection can be replaced, operation is easy, the detection result is reliable, the labor cost is reduced, and the detection efficiency and quality are improved.

Fabric Tube Propulsion Drive is a system for propelling medical devices through hollow body organs and within body cavities without causing trauma to the body surfaces upon which it operates. Fabric Tube Propulsion Drive consists of a hollow tube surrounded by a continuous loop of elastic fabric or mesh. Within the tube is a motor drive system that moves the fabric through the lumen of the tube such that the fabric on the outside of the tube can continuously interface with the body part through which the Fabric Tube Propulsion Drive is operating, and thereby drive the whole device through the body cavity or over the surface in question. Furthermore, the motor drive system can selectively apply tension to the fabric over specific areas within the tube to cause flexion of the whole tube.

The invention discloses a high-gloss and high-rigidity polypropylene composite material and a preparation method thereof, and belongs to the technical field of polymeric materials. The polypropylene composite material is characterized by comprising the following components in parts by weight: 90-95 parts of polypropylene, 1-4 parts of polymethyl methacrylate, 1-6 parts of a filling agent, 0.3-0.5part of a nucleating agent, 0.2-1 part of a lubricating agent, 0.05-0.1 part of a coupling agent and 0.1-0.5 part of an antioxidant, wherein the nucleating agent is an alpha crystal form nucleating agent. The preparation method comprises the following steps: proportionally putting the materials into a mixer, uniformly mixing to obtain a mixed material; melting and extruding the obtained mixed material through a parallel twin-screw extruder, cooling, granulating, homogenizing, and drying to obtain the required high-gloss and high-rigidity polypropylene material. According to the invention, thesurface gloss of the material is improved, and the problem of poor mechanical properties of the product caused by a large amount of inorganic filler is solved.

The invention belongs to the technical field of current transformer detection, and particularly relates to a current transformer experiment detection mechanism. The mechanism comprises a primary linefixing part, a primary line moving part and a secondary line part, wherein the primary wire fixing part is fixedly connected with a rack; the primary line moving part can be slidably connected with the rack in a direction close to or away from the primary line fixing part; and the primary wire fixing part is connected with the primary wire fixing part in a sliding mode and can serve as a primary conducting rod of the current transformer, the secondary wire part is arranged above the primary wire moving part and can ascend and descend in a Z-axis direction, and the secondary wire part is used for being connected with a secondary terminal of the current transformer. Manual feeding, wiring and detection can be replaced, operation is easy, a detection result is reliable, labor cost is reduced,and detection efficiency and quality are improved.