2024年11月1日 · Fourier transform infrared spectroscopy (FT-IR, ThermoFisher Nicolet IS50) was used to detect changes in the functional groups of the PI films. The optical contact angle tester (Biolin ThetaLite) was used to characterize the surface wettability of the films.

2021年3月1日 · Flexible polyimide (PI) films with simultaneously excellent dimensional stability and toughness were vital for the application and reliability of flexible display. Thus, in this paper, we designed a novel PI film containing point-to-face multi-coordination structure.

2001年2月1日 · Polyimide (PI) films coated on Cu films were treated under a high humidity condition. FT-IR RAS measurements have clarified the interface reactions of Cu with PI, the hydrolysis of imide functional group and formation of Cu carboxylate.

2024年11月26日 · In this work, 3D-net copper-plated polyimide current collector was prepared through electroless plating method and obtained a structure of PI core and Cu shell. This novel current collector possesses a lightweight areal density. Three different Cu loading copper-coated PI CC samples was prepared and compared.

Download scientific diagram | FT-IR spectra of PI/Cu nanocomposites with different Cu contents from publication: Effects of Copper Nanoparticles Located in Different Regions of ...

2020年10月15日 · The PI-TPP-Cu-based graphite electrode (PI-TPP-Cu/Gr) exhibits the best fire retardancy, whereby the flame is completely self-extinguished within 1.0 s.

In this work, we have synthesized the CuS/Cu (OH)2 nanocomposite electrode materials by the simple solvothermal method. The crystal structure, phase purity and the presence of functional groups...

我们使用 DFT 计算从理论上探索了在化合物 1 和 2 的晶体结构中观察到的超分子组装，MEP 表面分析和组合 NCI 图/QTAIM 计算工具。 理论分析表明，化合物1中的反平行π-堆叠相互作用和化合物2中的N-H···Cl氢键是稳定化合物的强结构导向非共价合成子。 在化合物 1 中观察到的阴离子-π/π-π/阴离子-π 组装中，阴离子-π 相互作用通过降低金属配位缺电子苯环之间的静电排斥力增强 …

根据分子式计算不饱和度公式：不饱和度 Ω=n4+1+ (n3-n1)/2 其中：n4：化合价为4价的原子个数（主要是C原子）， n3：化合价为3价的原子个数（主要是N原子）， n1：化合价为1价的原子个数（主要是H，X原子）。 作用:由分子的不饱和度可以推断分子中含有双键，三键，环，芳环的数目，验证谱图解析的正确性。 四、图谱解析 1.分析3300~2800 cm-1区域C-H伸缩振动吸收；以3000 cm-1为界：高于3000 cm-1为不饱和碳C-H伸缩振动吸收，有可能为烯，炔，芳香化合物；而低 …

In this study, UV-C light source with specific wavelength of 220 nm was used to pretreat the faying surface for strengthening the Cu/Cu and PI/PI bonding respectively. The results show that a proper light expoure effectively increased the joint strength. FTIR analysis confirms that it was related to the hydroxyl ligands formed on the surface.