8results about How to "Improve surface adhesion" patented technology

The utility model discloses needle grasping forceps under an arthroscope, which belongs to the technical field of needle grasping forceps and comprises a forceps body, a fixed forceps rod is arranged at one end of the forceps body, an extension rod is arranged at the other end of the forceps body, a fixed forceps and a movable forceps are respectively arranged at the tail end of the extension rod, a movable groove is arranged on the inner side of the middle of the forceps body, and a movable forceps rod is arranged in the movable groove. A clamping plate and a positioning plate are arranged on the opposite sides of the fixed forceps rod and the movable forceps rod, a clamping groove is formed in the bottom of the clamping plate, a clamping block is arranged at one end of the positioning plate, a pressing block is arranged at the top of the other end of the positioning plate, and a reset spring is arranged at the bottom of the pressing block. The clamping grooves in the clamping plate are matched with the clamping blocks on the positioning plate to form a clamping state, so that the fixed forceps rod and the movable forceps rod are clamped and positioned, the positioning of the movable forceps is realized, a certain labor-saving purpose is achieved without continuously applying force by a surgeon during use, and better operation of the surgeon is facilitated.

The raw material compositions for preparing acrylic optical coatings and for preparing acrylic optical lenses both contain sulfur-containing aromatic acrylate compounds as shown in Formula A. The optical materials prepared from these raw material compositions, with precisely controlled refractive indices of 1.53–1.60, significantly improve the material's resistance to yellowing, optical durability, and impact resistance, meeting the application requirements of high-end optical materials. Wherein, R1 = CH2 = CH-COO, R2 = CH3, n = 2 or 3, and m = 0, 1, or 2.

The application discloses a kind of crisp leisure food with immersion coating malt dextrin device control system, it is related to food processing technical field, it is applied to immersion coating malt dextrin device.The control system includes state acquisition unit, stage control unit, lock determination unit, result output unit and parameter backwrite unit;Stage control unit controls the material to be processed to successively experience surface layer hole calling section, internal introduction section, even seepage sweeping section, edge moat section, directional side leakage section, low-energy backfill section and front solidification section, so that malt dextrin forms continuous support precursor in material interior;Lock determination unit takes ring moat state as main criterion, takes boundary state and internal support state as verification criterion, after low-energy backfill, when ring moat is not connected again bright, material edge is not sustained bright, and material pressure rebound state is not returned, it is judged that internal support skeleton lock establishment state is established;Parameter backwrite unit writes corresponding control parameters when not locked in.The system is suitable for the processing of raw materials not easy to directly make crisp chips.

The application provides a thermosetting viologen electrochromic solution and an electrochromic device. The thermosetting viologen electrochromic solution comprises the following components at the following concentrations: 1.5-4.5 g / mL of a diepoxy functional group molecule, 0.5-0.8 g / mL of an anhydride curing agent, 0.1-0.4 g / mL of a viologen compound, and 0.05-0.3 g / mL of a counter electrode material; the diepoxy functional group molecule is at least one selected from bisphenol f diglycidyl ether, bisphenol a diglycidyl ether and bisphenol s diglycidyl ether. The electrochromic device comprises a solid electrochromic layer formed by curing the thermosetting electrochromic solution. The application optimizes the formula, so that the electrochromic solution can achieve thermal curing while ensuring good electrochromic performance, solves the problems of easy leakage and poor safety of the viologen electrochromic device, and can be thermally cured and formed, avoiding the potential adverse effects of the ultraviolet curing method on the performance of the device.

The invention discloses a honeycomb biological carrier and a manufacturing method thereof, and relates to the technical field of sewage treatment. Comprising a supporting frame, at least one layer of honeycomb structure, a spiral outer rib and a coating, wherein a treatment space is formed in the supporting frame in a surrounding manner; the honeycomb structure is connected with the supporting frame and is arranged in the treatment space; the spiral outer rib is arranged between the honeycomb structure and the supporting frame, and the surface of the supporting frame, the surface of the honeycomb structure and the surface of the spiral outer rib are coated with the coating; the spiral outer ribs are used for increasing spiral disturbance of water flow, by arranging the spiral outer ribs, original linear or disordered motion of the water flow can be forcibly converted into rotary motion guided by the outer contours of the spiral outer ribs, and a retained water film on the surface of a carrier can be effectively damaged; and the substance exchange between the sewage and the surface of the biological membrane is changed from diffusion to convection, so that sludge and impurities are prevented from being deposited in pore channels.

This invention discloses a rare-earth-doped optical imaging film and its preparation method. The method specifically includes: providing an optical glass substrate and pre-treating its surface; sputtering a base layer onto the surface of the optical glass substrate; depositing a rare-earth-doped layer onto the surface of the base layer; etching micro / nano structures onto the surface of the doped layer; using the micro / nano structures to enhance the luminescence efficiency of the doped layer; depositing a hydrophobic layer onto the surfaces of the doped layer and the micro / nano structures; and annealing the optical glass substrate forming the base layer, doped layer, and hydrophobic layer to obtain the rare-earth-doped optical imaging film. Through optimized design of the base layer, doped layer, and micro / nano structures, the optical imaging film exhibits higher luminescence efficiency, lower light loss, and maintains stable optical properties during long-term use. Therefore, this invention solves the technical problem of the imbalance between high refractive index and low absorption loss in existing optical imaging films.

This invention discloses a graphene-reinforced TPU adhesive and its preparation process, relating to the field of polyurethane materials technology. The invention involves mixing epoxy resin and a silane coupling agent, reacting them under the catalysis of dibutyltin dilaurate to obtain a silane epoxy resin, which is then reacted with isophorone diisocyanate and polytetrahydrofuran ether diol to obtain a polyurethane prepolymer solution. Modified graphene is then added, dispersed at high speed, and a chain extender and curing agent are added. The mixture is heated to react, and after the reaction is complete, cooled to room temperature to obtain the graphene-reinforced TPU adhesive. This invention improves the mechanical strength and thermal stability of the TPU adhesive by adding modified graphene. Surface modification of graphene is achieved by using quaternary ammonium salt didodecyl dimethyl ammonium bromide as a graphene modifier. The intercalation reaction between didodecyl dimethyl ammonium bromide and graphene oxide reduces the interfacial energy between graphene and thermoplastic polyurethane, enhancing the dispersibility and barrier properties of the TPU adhesive.

The application belongs to the technical field of polymer films, and relates to a polytetrafluoroethylene vacuum bag film and a preparation method and application thereof. The preparation method comprises the following steps: first, turning a polytetrafluoroethylene rod blank to obtain a polytetrafluoroethylene turned film; then, adopting a hot roller to roll the obtained polytetrafluoroethylene turned film at 320-420 DEG C to obtain a polytetrafluoroethylene rolled film; finally, contacting one side of the obtained polytetrafluoroethylene rolled film with a sodium-naphthalene tetrahydrofuran treatment solution with a molar concentration of 0.2-0.8 mol / L for not less than 30 s to obtain the polytetrafluoroethylene vacuum bag film. The polytetrafluoroethylene vacuum bag film prepared by the above preparation method has a smooth and flat film surface and no obvious wrinkles, one side can keep the original non-stickiness and excellent demolding characteristics of polytetrafluoroethylene, and the other side has good surface adhesion, can be reliably bonded with a sealing rubber strip or a mold frame, and is suitable for a composite material forming process.