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62results about How to "With foldable" patented technology

Polymer based nanometer cone structure SERS substrate and preparation method

The invention discloses a polymer based nanometer cone structure SERS substrate which is prepared from a polymer with a nanometer cone structure and a three-dimensional noble metal nanometer particle array; and noble metal nanometer particles are uniformly inlaid in the polymer nanometer cone structure surface. The SERS substrate has the advantages of excellent transparency, excellent flexibility, excellent uniformity, high sensitivity, light weight, foldable ability, portability and liability in treatment and can be applied to the field of in-situ detection of pesticide residues on the surfaces of vegetables and pollutants in an aqueous solution. The invention also discloses a preparation method of the SERS substrate. The preparation method comprises the following steps: preparing a conical porous alumina template by utilizing a multistep anodic oxidation method; depositing the noble metal nanometer particles on the conical porous alumina template; and copying the nanometer cone structure of the conical porous alumina template on the polymer by utilizing a nanometer imprinting technology, and transferring the noble metal nanometer particles onto the polymer to obtain the SERS substrate. The method is simple in preparation process and lower in cost and is suitable for large-scale industrial production.
Owner:HUAZHONG UNIV OF SCI & TECH

Method for producing degradable material with manioc waste and wine stillage

The invention discloses a method for producing a novel degradable material by manioc dreg and pot ale and comprises the following steps: the manioc dreg or the pot ale is purified, ground, cleaned, drained and mixed with dry paper pulp according to the weight proportion of a to b; wherein, the a lies between 2 and 5, and the b lies between 5 and 8; a papermaking addition agent is added, and the mixture is molded and parched, thus obtaining the degradable material product. Paper pulps of vegetable fiber such as waste newspapers, carton paper, paperboards and other paper pulps of vegetable fiber materials can be taken as the dry paper pulp. The method for producing the novel degradable material by the manioc dreg and the pot ale adequately utilizes wastes of manioc resources such as the manioc dreg, the pot ale to produce the novel industrial degradable material with good quality and low cost, replaces degradable materials of cellular plastics, and not only solves the difficult processing problem of wastes and changes wastes into valuable, but also effectively generates the actions of controlling and eliminating the white pollution; furthermore, the method for producing the novel degradable material by the manioc waste and the pot ale has uncomplicated technique, short production period, low cost, low energy consumption, simple and convenient operation, high product stability and good economic, social and environment-protective benefits.
Owner:广西农垦明阳生化有限公司

Common-path flexible off-axis four-mirror zoom optical system

InactiveCN110989152AWith foldableMultiple Design FreedomOptical elementsEarth observationOptical axis
A common-path flexible off-axis four-mirror zoom optical system relates to the technical field of aerospace optical remote sensors, solves the technical bottleneck of earth observation of an existingspace remote sensing camera, and comprises a primary mirror, a secondary mirror, a third mirror and a fourth mirror, wherein the primary mirror serves as a fixed mirror and is fixed relative to the optical axis of the system; the secondary mirror, the third mirror and the fourth mirror are a total-reflection zoom system composed of three movable mirrors; the secondary mirror is a negative power mirror; the secondary mirror is moved to be located in the Cassegrain optical structure; the secondary mirror is a flexible deformable mirror, and the vertex of the secondary mirror moves along the optical axis direction of the system; the third mirror and the fourth mirror are both positive power mirrors, and the vertexes of the third mirror and the fourth mirror move along the optical axis of thesystem; and light sequentially passes through the primary mirror, the secondary mirror, the third mirror and the fourth mirror and is finally imaged on the image plane of a detector. The total-reflection zoom system provided by the invention realizes light path sharing, and the aberration of the system is corrected by combining the flexible deformable mirror, so that the ultra-light weight of themulti-channel optical system is realized.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Polyvinyl dichloride (PVDC) latex special for kraft paper used for food packaging and preparation method thereof and application thereof

The invention discloses a polyvinyl dichloride (PVDC) latex special for kraft paper used for food packaging and a preparation method thereof and application thereof. The kraft paper coated by the PVDC latex can be used for packaging of foods such as peanuts, melon seeds and walnuts. The PVDC latex is obtained by a mixed monomer, an auxiliary, an initiating agent, an emulsifying agent and a seeded emulsifying agent, wherein the mixed monomer contains a certain amount of vinylidene chloride, vinyl cyanide, butyl acrylate and acrylic acid, and the seeded emulsifying agent contains sodium dodecyl benzene sulfonate and a 2A-1 emulsifying agent. The prepared PVDC latex is good in stability and free of emulsification breaking and sediment after placed for 24 months under temperature of 30 DEG C and relative humidity (RH) of 70%. Monomer residual volume in the latex is lower. The kraft paper coated by the PVDC latex has the advantages of being environment-friendly, degradable, good in heat tightness, waterproof, damp proof and the like. When coating amount of the latex is 20g / m2, steam transit amount is less than or equal to 3g / m2.24h and oxygen permeability is less than or equal to 6g / m2.24h, monomer residual amount of the vinylidene chloride is less than or equal to 1ppm or not detected, and heating sealing intensity can reach 3N / 15mm.
Owner:HAINAN BNK WATER BASED NEW MATERIAL CO LTD

Adjacent netting semi-flexible connection method for copper alloy mesh grid

The invention provides an adjacent netting semi-flexible connection method for a copper alloy mesh grid, relating to an aquaculture net cage netting connection method and needing to provide a netting semi-flexible connection method. A cylinder braid, a rope, a suture line and a tarpaulin ring are adopted. The connection method is characterized in that the cylindrical braid, the rope, the suture line and the tarpaulin ring are processed and assembled into a semi-flexible connecting member arranged between two adjacent copper alloy mesh grids, one end of the suture rope is fixed on a net junction at a distance of 3 meshes from the connecting part of the copper alloy mesh grids, the other end of the suture rope sequentially penetrates through eye rings of the semi-flexible connection member and net meshes on the copper alloy mesh grids, the eye rings of the semi-flexible connecting members and the net meshes of the copper alloy mesh grids are sutured and sewed in a suture ratio of 2:3, after the suture rope penetrates through all eye rings at one side of the semi-flexible connection member and corresponding net meshes on the copper alloy mesh grids, the suture rope is fixed on a net junction at a distance of 4 meshes from the connecting edge of the copper alloy mesh grids, and the semi-flexible connecting member is connected with the other copper alloy mesh grid of the two copper alloy mesh grids together by using the same method.
Owner:EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI +1

Agricultural unmanned aerial vehicle mounting device

The invention belongs to the technical field of unmanned aerial vehicle mounting and in particular relates to an agricultural unmanned aerial vehicle mounting device. The agricultural unmanned aerialvehicle mounting device comprises a landing gear fixed on an unmanned aerial vehicle and further comprises a mounting component used for mounting articles; a positioning component is detachably connected to the landing gear and used for positioning and fixing the mounting device and the landing gear; a height adjusting component is detachably connected to the positioning component and used for adjusting a height position of the mounting component; a rotating component is detachably connected to the height adjusting component and used for adjusting the direction of the mounting component; and the mounting component is detachably connected to the rotating component. According to the agricultural unmanned aerial vehicle mounting device, through cooperation of the height adjusting component and the rotating component, the mounting component can be adjusted so that the applicability of the mounting component can be enhanced; and meanwhile, the mounting component can mount four types of articles so that the applicability is further enhanced; and moreover, parts for mounting the articles are conveniently changed so that the applicability is higher.
Owner:南京精微迅智能科技有限公司

Conductive thin film

The invention relates to the technical field of electronic information, in particular to a conductive thin film. The conductive thin film comprises a base material thin film, optical adjusting layers and conducting layers, wherein the base material thin film is connected with the optical adjusting layers; the optical adjusting layers are connected with the conducting layers; the conductive thin film comprises two conducting layers; two optical adjusting layers are arranged between the two conducting layers; the base material thin film is arranged between the two optical adjusting layers; flexible transparent thin films are respectively arranged on the outer sides of the two conducting layers; the conducting layers are made of a graphene material; the graphene material is pure graphene; the graphene grows under the conditions of a gas carbon source and a protective gas by a chemical vapor deposition method; and the grown graphene is transferred to the flexible transparent thin films. The conducting layers are conductive organic polymer layers; and a conductive organic polymer compound of each conductive organic polymer layers is one or more of a polythiophene compound, a polyaniline compound or a polypyrrole compound. The conductive thin film has the characteristics of being sensitive in reaction, good in transparency, low in manufacturing cost and the like.
Owner:黄云鸿

Multi-rotor unmanned aerial vehicle based on six-pressure-rod integral tension structure

The invention discloses an unmanned aerial vehicle based on a six-pressure-rod integral tension structure. The unmanned aerial vehicle body has a stable space structure composed of a set of discontinuous pressed components and a set of continuous pressed components which are connected with each other; the unmanned aerial vehicle has a unique foldable feature, light weight and beautiful structure appearance; vehicle body and vehicle arms of the multi-rotor unmanned aerial vehicle can form an integral tension structure and form an unmanned aerial vehicle with a foldable structure; in the unmanned aerial vehicle based on the integral tension structure, rotors are arranged at the tail ends of the pressure rods; a control system of the unmanned aerial vehicle is installed on a central positionof the vehicle body; four retractable retraction components are arranged in the unmanned aerial vehicle and are capable of changing rotor driving positions and having compound motions, such as pitching, yawing and torsion; the unmanned aerial vehicle is capable of continuously deforming through an elastic cable; different deformations are corresponding to various postures, in order to adapt to different working environments (such as taking off and landing); the unmanned aerial vehicle has an ultrahigh engineering application value.
Owner:GUIZHOU INST OF TECH

Foldable shower room

The invention discloses a foldable shower room. The foldable shower room comprises a left side column, a right side column, an upper guide rail, a lower guide rail, a left screen unit and a right screen unit, wherein the left screen unit and the right screen unit are arranged on guide rails; the two ends of the upper guide rail and the lower guide rail are fixed to the upper ends and the lower ends of the left side column and the right side column respectively; the left screen unit and the right screen unit are arranged on the upper guide rail and the lower guide rail; a binding column is arranged on the outer side of the left screen unit; revolving shaft assemblies are arranged at the two ends of a vertical edge on the outer side of the left screen unit; a right section is arranged on the inner side edge of the left screen unit; pulley assemblies are arranged at the two ends of a vertical edge on the outer side of the right screen unit; a left section is arranged on the inner side edge of the right screen unit; the inner sides of the left screen unit and the right screen unit are connected through a rotary mechanism; the rotary mechanism is arranged on the left section and the right section. The foldable shower room occupies a small space and is convenient to transport and store, and maximum utilization of limited space can be realized effectively.
Owner:PINGHU XINDA ELECTRONICS PLASTIC

Solder strip and flexible solar cell module

The invention relates to a solder strip and a flexible solar cell module. The solder strip comprises a first extending part, a stretching part and a second extending part. The stretching part is of acurve segment structure, one end of the stretching part is connected to the first extending part, the other end of the stretching part is connected to the second extending part, the first extending part and the second extending part are collinear, and the curve segment is a sine curve segment of at least one complete period with the connecting point of the stretching part and the first extending part as the origin of coordinates. The flexible solar cell module comprises a flexible substrate, a plurality of solar cells and a flexible packaging film. The solar cells are arranged between the flexible substrate and the flexible packaging film, the plurality of solar cells are connected in series through the solder strips, the first extension parts and the second extension parts of the solder strips are connected to the electrodes of two adjacent solar cells, and the positive electrodes and the negative electrodes of the electrodes of the two adjacent solar cells are different. The flexiblesolar cell module adopting the solder strip provided by the invention realizes relatively large deformation effects such as extensibility, folding and the like of the module.
Owner:INST OF FLEXIBLE ELECTRONICS TECH OF THU ZHEJIANG +1
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