论文部分内容阅读
按聚酰胺酰亚胺原液∶溶剂∶水=1∶2∶25,提取聚酰胺酰亚胺树脂,并将该树脂溶解于溶剂中,同时,将聚酰胺酰亚胺原液稀释,以旋转涂层法分别制得聚酰亚胺超薄膜,并用红外(FT-IR)、扫描电镜(SEM)、热重(TG)进行表征。结果表明:干燥温度为30℃时,从聚酰胺酰亚胺原液中提取的树脂出现明显的特征峰。超声波处理铜箔可使涂覆材料与基底更好附着。挥发性溶剂是极好的致孔剂。树脂含量为10%的聚酰胺酰亚胺超薄膜在80~90℃时,溶剂大量挥发致质量出现第一次明显下降,而250℃时的质量变化为薄膜内部分子链交联及扩链所致。
Polyamideimide solution: solvent: water = 1: 2: 25, polyamideimide resin was extracted, and the resin was dissolved in a solvent, and at the same time, the polyamideimide solution was diluted to spin coat Ultrafine polyimide films were prepared and characterized by FT-IR, SEM and TG respectively. The results showed that when the drying temperature was 30 ℃, the resin extracted from the polyamide imide showed obvious characteristic peaks. Ultrasonic treatment of the copper foil allows the coating material to adhere better to the substrate. Volatile solvents are excellent porogens. When the content of the resin is 10%, the mass of the polyamide-imide ultra-thin film at the temperature of 80-90 ℃ drops obviously for the first time, while the mass change at 250 ℃ is the cross-linking and chain extension of the molecular chain To