目前，光盘的寿命和耐久性问题引起公众的关注。由于光盘采用非接触式记录，排除了接触损伤，同时又在盘面上加盖１毫米厚的保护膜，使光盘表面有较强的抗污染能力，避免了灰尘、手印等污物的影响。因此，光盘的寿命主要取决于记录层的理化性质。记录膜大多由低熔点的金属... At present, the disc life and durability issues have aroused public concern. As the disc uses non-contact recording, contact damage is ruled out, meanwhile, a 1 mm thick protective film is added on the disc surface to make the disc surface more resistant to contamination and avoid the influence of dirt, handprints and other contaminants. Therefore, the life of the optical disc depends mainly on the physical and chemical properties of the recording layer. Record film mostly by low melting point metal ...