Application in plastic engineering


Adding nano-SiO2 as an additive to plastics not only plays the reinforcing role played by conventional SiO2, but also gives plastics many new properties. Using nano-SiO2 to modify the surface of optical plastics can form a hard coating on the plastic surface, improving the wear resistance and scratch resistance of the plastic surface. For example, Nippon Sheet Glass uses the PLD method to form a dense nano-SiO2 film with strong adhesion on the plastic surface, thereby achieving excellent effects such as improving weather resistance, chemical resistance, wear resistance, imparting antifouling properties, and improving the adhesion of inorganic substances. If nano-SiO2 is used in translucent plastic films, it can improve the transparency, strength and toughness of the film, and the waterproof performance is also greatly improved. This type of film can be used as a high-grade film for special purposes. In general plastics, if nanoparticles are added, it can achieve the performance of engineering plastics. For example, if nano-SiO2 is added to polypropylene, its strength is comparable to that of engineering plastic nylon.