8results about How to "Solve the adhesion" patented technology

The application belongs to the technical field of caffeine purification, and discloses a sublimation refining device for caffeine purification, which comprises a rack, a sealed box arranged on the rack, a material disc cooperatively connected to the bottom of the sealed box, and a main motor for providing rotary power; the main motor is drivingly connected with a main shaft longitudinally penetrating through the sealed box. The heat-conducting oil in the oil storage pipe is heated by the built-in electric heating rod, and the heat is conducted to the heat exchange pipe to form an internal heating structure. The heat exchange pipe is inserted into the material, and the serpentine structure increases the effective heat exchange area. The mechanical mixing action of the material turning frame continuously breaks the temperature boundary layer inside the material. This internal dynamic heat transfer mechanism ensures that the material is heated in a uniform state, avoids the coking or sticking phenomenon caused by local overheating, improves the heat transfer efficiency, and makes the caffeine sublimate in a stable thermodynamic state, thereby improving the overall material utilization rate and sublimation quality.

A weather-resistant polyolefin film and a solar cell backsheet prepared therefrom are disclosed. The weather-resistant polyolefin film comprises at least three layers: a first surface layer in contact with air, an intermediate layer, and a second surface layer for lamination with a substrate. The components and mass fractions of the first surface layer are: 100 parts of a first polyolefin, 15 to 135 parts of an α-olefin copolymer, 3 to 15 parts of filler, 1 to 4 parts of an anti-aging agent, and 1 to 5 parts of a first light stabilizer. The first polyolefin contains at least 70 wt% homopolymer polypropylene. Compared with existing technologies, the weather-resistant polyolefin film provided by this invention can replace PVDF fluoropolymer film and exhibits a breaking elongation retention rate of over 70% after UV damp heat aging and a low-temperature breaking elongation rate of over 40%. After damp heat aging, the solar cell backsheet maintains an adhesion strength of over 7 N / cm to PET, demonstrating excellent weather resistance. The main resin material is inexpensive, making it highly practical.

The present application relates to the field of coating technology, in particular to a waterproof putty powder and a preparation method thereof. The waterproof putty powder comprises heavy calcium carbonate, quartz powder, Portland cement, calcium hydroxide, hydroxyethyl cellulose ether, hydrophilic fumed silica, hydrophobic fumed silica and a specific redispersible polymer powder. The polymer powder is prepared by spray drying of ethylene-vinyl acetate copolymer dispersion, polyvinyl alcohol, silane coupling agent, triethylamine and colloidal silica. The preparation method of the present application comprises first preparing the modified polymer powder, and then mixing it with the remaining dry powder components in steps. The construction method involves mixing with acidic water, standing for curing, and then scraping in two batches. Through the design of the core-shell structure of the polymer powder and the sequential addition of functional components, the waterproofness, workability, flexibility and bonding strength after immersion of the putty layer are synergistically improved.

This invention relates to a two-component cross-linked oxidized nanocellulose spray hemostatic gel, its preparation method, and its application, belonging to the field of biomedical materials. Addressing the problems of weak adhesion, insufficient mechanical properties, and biocompatibility risks in existing hemostatic materials, this invention introduces aldehyde groups using sodium periodate to prepare an adhesive component (TOCN-CHO), and simultaneously modifies the carboxyl groups of TOCN with lysine to create a cross-linking component (TOCN-Lys). After the two components are sprayed and mixed, the aldehyde groups of TOCN-CHO bind to the amino groups on the tissue surface to achieve wound sealing. Simultaneously, the amino groups of TOCN-Lys form a Schiff base cross-linking network in situ with the aldehyde groups of TOCN-CHO, enhancing mechanical strength while eliminating aldehyde toxicity. The gel retains shear-thinning properties and can be sprayed. Animal experiments show that the hemostasis time is reduced to 28 seconds. It also exhibits biodegradability and renewability, effectively solving the problem of synergistic optimization of adhesion, mechanical strength, and biocompatibility, making it suitable for emergency hemostasis and surgical scenarios.

The application discloses a kind of wear-resistant anti-adhesion injection molding machine composite modified material and preparation method thereof, belong to high polymer composite material technical field.The material includes by weight parts: thermoplastic resin matrix 100 parts;Multi-dimensional space hybrid reinforcing body 5~25 parts;Friction reactivity nano repair agent 3~12 parts;Three-layer core-shell structure anti-adhesion rheological agent 2~8 parts;Interface compatibilizer 0.5~3 parts.The repair agent is composed of specific oxide, can occur solid phase reaction under injection molding machine operating temperature and shear to realize in-situ repair.The anti-adhesion rheological agent is three-layer core-shell structure with carbon nanotube core, GMA-fluorine-containing acrylic ester copolymer intermediate layer and perfluoropolyether shell layer.The material of the application introduces friction-induced solid phase reaction repair mechanism and three-layer core-shell compatibility design, solves the existing material repair mechanism mismatch, anti-adhesion component and matrix compatibility poor, formula process is not clear and other problems.

The present application belongs to the field of microelectronic processing technology, and more particularly relates to a method for improving the adhesion and / or development speed of photoresist. For the photoresist system whose polarity changes from small to large significantly before and after photolithography, the adhesion between the photoresist and the silicon wafer substrate is significantly improved, and the development time is greatly shortened by using an alcohol solvent as a developer without using an adhesion promoter, compared with the alkaline aqueous solution developer commonly used in the prior art.

This invention relates to a flow stabilizing silo for a raw material grinding roller press, belonging to the technical field of cement production equipment. It includes a feed silo, a discharge silo, a distribution platform, a distributor, and a distribution motor. The feed silo is a cylindrical silo with a cover plate installed on its top. A feed inlet is located in the center of the cover plate. The opening at the top of the discharge silo is connected to the opening at the bottom of the feed silo. Fixed rings and rotating rings are evenly and alternately installed on the inner wall of the discharge silo. The distribution platform is installed at intervals below the bottom opening of the guide cylinder via support rods. The distributor and distribution motor are installed on the distribution platform. This application can solve the problems of poor material uniformity leading to segregation and skin formation caused by moisture in traditional flow stabilizing silos during the flow stabilization process of cement raw materials.

This invention discloses a low-altitude, multi-target, omnidirectional infrared detection device, comprising a top base and a transparent protective cover. The transparent protective cover is disposed at the bottom of the top base, and a detection component is disposed inside the transparent protective cover. The detection component includes a support rod, which is fixedly connected to the top base. A column is fixedly connected to the middle of the support rod, and a fixed base is fixedly connected to the bottom of the support rod. A first motor is installed on the top of the fixed base. This invention utilizes an outer wall cleaning ring to solve the problem of dust accumulation on the outside of the transparent protective cover obstructing the view, thus avoiding blind spots. An inner wall cleaning ring helps prevent fogging on the inner wall, which obstructs the view and affects the detection effect. A transmission cylinder drives an outer lifting ring to rise and fall, thereby adjusting the angle of the adjustable detection head. Multiple adjustable detection heads are provided to facilitate omnidirectional detection.