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137results about How to "Conducive to speed up" patented technology

Method for effectively preparing high-orientation and high-compactness two-dimensional material thin film

The invention relates to the field of preparation and application of two-dimensional materials, in particular to a method for effectively preparing a high-orientation and high-compactness two-dimensional material thin film. The method comprises the following steps: taking a circular tube with a smooth inner surface as a casting die; pouring a solution which contains a two-dimensional material intothe die when the die rotates in the peripheral direction at high speed; uniformly coating the inner surface of the die with the solution by using centrifugal force; forming shear force which drives the two-dimensional material to be regularly arranged layer by layer in an oriented manner in the peripheral direction in the solution in a centrifugal rotating process; and meanwhile, driving the two-dimensional material to be accumulated at high compactness by the centrifugal force so as to obtain the two-dimensional material thin film with high orientation and high compactness. The method is suitable for preparing various two-dimensional materials such as graphene, and composite thin films and laminated heterostructure thin films of the two-dimensional materials; electric property, heat property, mechanical property and the like of the thin film are greatly improved; and the method is used in the field of high-performance electric conduction / heat-conduction thin films, heat management materials, high-strength thin films, electronic / optoelectronic devices, compact energy storage, gas / ion separating films, proton transmitting films and the like.
Owner:深圳烯材科技有限公司

Water flow speed increasing device for bulb tubular generator set

InactiveCN104405558AEasy to speed upAvoid Irregular ShocksHydro energy generationReaction enginesWater flowMechanics
The invention relates to a water flow speed increasing device for a bulb tubular generator set. The device comprises a speed increasing tube, at least four drainage plates, a guide plate and at least four speed increasing plates. The speed increasing tube is in a hollow truncated pyramid structure, a water inlet is formed in the lower bottom, a water outlet is formed in the upper bottom, and the at least four drainage plates are arranged on the tube wall of the water inlet and the water outlet and are hinged to the tube wall of the speed increasing tube. An angle adjusting mechanism is further arranged, and the guide plate is disposed in the speed increasing tube and is perpendicular to the inner wall of the speed increasing tube and distributed along the axial direction of the speed increasing tube. The at least four speed increasing plates are connected with the inner wall of the speed increasing tube and are distributed in the same horizontal plane. Each of the speed increasing plates comprises a compression plate and a pressure relief plate. According to the device, functions of speed increasing active adjusting and active drainage and guide of water flows are provided, and accordingly, water flow speeding up is facilitated, irregular impact of turbulence and the like on subsequent generator sets is prevented, and the generator operation stability is improved.
Owner:STATE GRID CORP OF CHINA +1

Pedal swing type entertainment and bodybuilding vehicle

The invention discloses a pedal swing type entertainment and bodybuilding vehicle which comprises a frame, a front bracket, a rear suspension, a pedal device, a ratchet mechanism, a transmission system, a braking device, a folding device, front wheels, rear wheels and the like, wherein a pedal is arranged on each of the left and right of the frame; the ratchet mechanism is mounted below the pedal; the pedal drives a transition connecting rod to move up and down; the transition connecting rod pushes a rocker to swing; the ratchet wheel is pushed to rotate by a certain angle by virtue of a pawl on the rocker; when the pedal resets under the action of a torsion spring, the other pedal is positioned in a pressed operating state; continuous drive force is realized by virtue of alternative operation of two groups of ratchet mechanisms; power is transferred to the rear wheel by virtue of two-stage gear drive and primary chain drive; the rear wheel is mounted on the rear suspension by virtue of a hub; the rear suspension is mounted at the tail of the frame via a bolt; the front bracket is mounted on the front part of the frame by virtue of pin connection; the height can be freely adjusted in a telescopic manner, and folding can be realized; the handle and the braking device are arranged on the front bracket.
Owner:ANHUI UNIV OF SCI & TECH

Fully-degradable material for shopping bags, mulching films and greenhouse films and preparation method of fully-degradable material

The invention discloses a fully-degradable material for shopping bags, mulching films and greenhouse films and a preparation method of the fully-degradable material, and relates to the technical fieldof film production. The preparation method comprises the steps: adopting modified polyvinyl alcohol and modified vegetable gelatin or chitosan as main raw materials, adding a cross-linking agent, a waterproofing agent, a stabilizer, an anti-block agent, polyethylene wax, an antioxidant, a coupling agent and other agents, performing high-speed stirring, performing treatment by using a casting method or granulation through a twin-screw machine, and performing treatment by using a film blowing method so as to obtain the shopping bags, mulching films or greenhouse films. The fully-degradable material for the shopping bags, mulching films and greenhouse films and the preparation method of the fully-degradable material have the advantages that the prepared fully-degradable shopping bags, mulching films and greenhouse films have safety, no toxicity, harmlessness, toughness, softness and smoothness, good elasticity, high transparency, high tensile strength and low price, and traditional plastic products can be replaced completely; easy degradation is achieved, the material can be self-denatured through natural factors, and is decomposed and degraded into small molecular compounds, and thedecomposed products have the effect of soil improvement.
Owner:刘杰
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