【摘要】 通过酰亚胺化温度和时间对元件性能影响的试验,研究聚酰亚胺感湿膜的感湿机理.提出感湿膜中存在有活性中心羧基-COOH及活性中心-COOH在酰亚胺化过程中的变化.这种活性中心既是感湿的因素,也是不稳定的原因.若制备性能优越的元件,需使元件具有稳定的感湿活性中心,要对聚酰亚胺改性,使其具有新的稳定的活性中心.更多还原

【Abstract】 The humidity-sensituve mechanism of the polyimides film is researched through the test for the influence of the temperature and the time of the imide reaction on the element performance. The active center carboxy group - COOH in the humidity -sensitive film is mentioned and the change of the active center-cooh in imide reaction is expounded. The active center are both the humidity -sensitive factor and unstable cause. Elements need some stable active center if elements of excellent performance are made. The modification of the polyimides is made so that there are some new stable active center in the polyimides.更多还原