论文部分内容阅读
概述真空镀铝作反射膜在生产上已沿用多年,新铝膜的白光反射率 R 可达90～91％,在空气中暴露一段时间后 R 略有下降,其致命的弱点是机械强度差,经不起机械清洁,虽然用在磷酸氢二铵溶液中阳极氧化的方法,可以提高机械强度,但却降低了反射率。用 SiO 保护膜能提高机械强度,但不能有效地增加反射率。为此寻找一种机械牢固性好,化学稳定性高,反射率比纯铝膜高的反射膜系是十分必要的,由于新产品试制的需要,我们进行了这项工作。
Overview Vacuum aluminum for the reflective film has been in use for many years in production, the new aluminum film white light reflectance R up to 90 ~ 91%, R slightly decreased after exposure to air for some time, its fatal weakness is poor mechanical strength, Can not afford to mechanical cleaning, although the use of ammonium dihydrogen phosphate solution in the anodic oxidation can improve the mechanical strength, but reduces the reflectivity. With SiO protective film can improve the mechanical strength, but can not effectively increase the reflectivity. For this reason, it is very necessary to find a reflective film with good mechanical stability, high chemical stability and high reflectivity compared with pure aluminum film. We did this work because of the need of trial production of new products.