2results about How to "No delamination" patented technology

The application provides a low-temperature laminated co-extrusion adhesive film and a preparation method and a photovoltaic module, and relates to the technical field of photovoltaic devices.The low-temperature laminated co-extrusion adhesive film comprises a laminated EVA film layer and a TPO film layer, and the EVA film layer and the TPO film layer are fused at the interface part; the content of vinyl acetate in the EVA film layer is 15-40%, and the crosslinking degree of EVA is not less than 65%; the raw material for forming the TPO film layer comprises an ethylene-alpha olefin copolymer; the melt index of the ethylene-alpha olefin copolymer is 0.5-10 g / 10 min, and the melting point is 50-115 DEG C; the light transmittance of the low-temperature laminated co-extrusion adhesive film for light with a wavelength of 380-1100 nm is greater than 88%. The low-temperature laminated co-extrusion adhesive film provided by the application not only can realize low-temperature crosslinking, but also has high bonding performance with a base material and long-term anti-creep performance.

This invention discloses a vibration-type respiratory sputum clearance device, relating to the field of medical device technology. It includes a vest body. Multiple independent liquid-coupled vibration units are arranged on the inner side of the vest, corresponding to the upper and lower lobes of both lungs and the projected lung region on the back. Each liquid-coupled vibration unit includes a sealed liquid-sealed bag, and a vibration unit is disposed on the outer side of each sealed liquid-sealed bag. The sealed liquid-sealed bag is integrally embedded and fixed in a flexible interlayer on the inner side of the vest. The interior of the sealed liquid-sealed bag is filled with a vibration-transmitting liquid. The vibration-transmitting liquid filled in the sealed liquid-sealed bag of this invention, relying on its incompressible and highly fluid physical properties, can efficiently transmit and convert the high-frequency micro-vibrations generated by the double-layer piezoelectric sheet, forming a dual mechanical action of shallow loosening and deep oscillation, perfectly adapting to the sputum clearance needs of the soft tissues of the chest and back and the deep airways of the thoracic cavity.