2results about How to "Applicable protection" patented technology

The present invention discloses a curtain mechanism and a self-service device thereof, wherein the curtain mechanism comprises a curtain, wherein two ends of the curtain are respectively fixed on a third shaft body and a first belt, and the curtain can be wound and rolled up on the third shaft body; the first belt is respectively sleeved on two first pulleys to form a belt transmission mechanism, and the two first pulleys are respectively sleeved on a second shaft body and a first shaft body, and the second shaft body and the first shaft body are respectively assembled with an electrical shell for circular rotation; one end of the second shaft body passes through the electrical shell and enters the protective cover and is respectively assembled with a first gear, an overload cylinder and a friction disk, and the first gear and the friction disk are sleeved and fixed on the second shaft body; the first gear and the sleeve are fixed on a fourth shaft body, and the second gear meshes with the first gear for transmission, and a second pulley is installed on the fourth shaft body, and this second pulley is sleeved with another second pulley through a second belt to form a belt transmission mechanism, and the other second pulley is sleeved and fixed on a curtain output shaft, and one end of the curtain output shaft is installed in a curtain motor.

This invention discloses a functionalized MXene-based waterborne fire-retardant coating, its preparation method, and its application, belonging to the field of fire-retardant coating technology. This invention combines the advantages of functionalized MXene materials, such as high dispersibility, high temperature resistance, and excellent flame-retardant properties, using waterborne polyurethane as the resin matrix, ammonium citrate as the acid source, and MXene materials as nanostructured flame retardants to develop an environmentally friendly, high-performance reinforced waterborne fire-retardant coating. The MXene materials can be obtained through chemical modification with different functional groups (such as silane coupling agents, calixarenes, and MOFs) to introduce polar groups onto the surface. The fire-retardant coating prepared using functionalized MXene materials achieves UL-94 V-0 flame retardancy through a dual mechanism of physical barrier and "catalytic char formation," while also possessing high mechanical strength and thermal stability, making it suitable for protecting substrates such as metals and wood.