3results about How to "Appropriate flexibility" patented technology

This invention discloses a silk fibroin-based biomimetic artificial tympanic membrane with a gradient structure and its preparation method, comprising the following steps: encapsulating and dissolving an antibacterial drug in an organic solvent and then adding it dropwise to a silk fibroin solution; casting the film and inducing the formation of a β-sheet structure with methanol to obtain an outer dense layer; electrospinning the silk fibroin solution to obtain oriented silk fibroin fiber felt, and cross-linking it in an ethanol solution to obtain an intermediate fiber layer; mixing the silk fibroin solution with a pore-forming agent and casting it onto the intermediate fiber layer; covering the intermediate fiber layer with the outer dense layer; after pre-freezing and lyophilizing, immersing the membrane in deionized water to dissolve the pore-forming agent to form an inner porous layer; then placing it in a PBS buffer containing growth factors and shaking treatment; and finally drying to obtain the silk fibroin-based biomimetic artificial tympanic membrane with a gradient structure. This invention's three-layer biomimetic artificial tympanic membrane possesses antibacterial and regenerative functions, while also exhibiting excellent mechanical properties, meeting the requirements of a biomimetic tympanic membrane.

The application discloses a kind of automatically slitting inductance protection bearing tape preparation equipment and preparation method thereof, comprising: conveying table, heat pressing device, cutting device and cooling device are sequentially arranged in conveying table two sides from left to right;Including the following steps: S1, accurate positioning is carried out to bearing tape by positioning structure and position is corrected;S2, bearing tape is contacted with heater by positioning pressing plate and is pressed down, and the edge of bearing tape is softened;S3, the both sides of bearing tape are cut simultaneously by blade;S4, bearing tape is rapidly frozen and cooled by liquid nitrogen injection part, and then the bearing tape piece is blown to the blanking transmission part by air injection part, and the blanking of single bearing tape piece is completed.The application effectively solves the problem of curling caused by uneven stress distribution by combining heating treatment, arc cutting and air blowing blanking, improves production efficiency, improves product quality and stability, reduces manual operation and error, and reduces production cost.

This application discloses a high-barrier aluminized composite film for integrated circuit packaging and its preparation method, belonging to the field of metal coating. The high-barrier aluminized composite film for integrated circuit packaging includes a first aluminized PET layer, a first adhesive layer, a second aluminized PET layer, a second adhesive layer, a BOPA layer, a third adhesive layer, and a PE layer arranged sequentially. The aluminized surfaces of the first and second aluminized PET layers are bonded together by the first adhesive layer, which is formed by curing a polyurethane-acrylate base agent and a curing agent. This application has the advantage of obtaining an aluminized composite film with good oxygen and moisture barrier properties and mechanical properties.