芳族聚酰亚胺已越来越成为电子研究研究的重点，因为它们在制造各种对下一代设备至关重要的材料的特性。欧洲杯足球竞彩在期刊上写作聚合物, a team of researchers from China has investigated recent progress in research in this area.
Study:用于电子应用的芳族聚酰亚胺膜的进展。图片来源：kpixmining/shutterstock.com
什么是芳族聚酰亚胺？
芳族聚酰亚胺是一类杂音聚合物。这些材料具有欧洲杯足球竞彩诸如优势机械强度，韧性，热稳定性，出色的电绝缘层，高磨损性和对辐射的耐药性。
Many materials have been manufactured which incorporate aromatic polyimides, including carbon fiber composites, films, foams, membranes, plastics for engineering purposes, varnishes, and coatings. They have been researched thoroughly for applications in high-tech domains such as optoelectronics, the aerospace industry, and microelectronics. Aromatic polyimide materials possess variable processability and superior combination characteristics.
这些材料的第一次合成是在1908年报告的，但直到1960年欧洲杯足球竞彩代后期，杜邦开发了基于芳族聚酰亚胺的第一种商业材料。这是由于发现了一种有效的合成途径来生产高分子重量聚酰胺。
当前，这些重要的异质聚合物最受欢迎的生产过程知之甚少。这是由于对溶剂，温度，水分和杂质等条件的合成过程中对聚合反应的影响。此外，单体的添加模式会影响最终材料的分子量。
The Study
在这项研究中，作者对基于芳族聚酰亚胺的材料的研究最新进展及其在电子领域的应用进行了回顾。欧洲杯足球竞彩该团队研究了晚期芳族聚酰亚胺膜的制备，性质和结构。研究小组选择了当前文献中的67个研究，以审查自己的实验室研究以及其他研究团队和机构的相关发现。
In the review, the authors have noted that several applications for advanced aromatic polyimide films have been explored in depth in the current literature. Research has led to these films being adopted for real-life applications in the microelectronics and packaging industries. Commercial uses of these materials include base films for flexible printed circuits and as substrates for flexible packaging.
来自AZOM的更多信息：电子光谱仪中的微通道板检测器
关于电路的线变薄的研究取得了迅速的进展。这是由于电子和电气部件中较薄膜的微型化和开发的改善所致。但是，使用寿命期间的尺寸变化会导致短路和断开连接，从而导致安全问题。因此，芳族聚酰亚胺膜不得吸收过量的液体，并且具有高尺寸稳定性和用于微电体应用的高弹性模量。
目前的文献中已经提出了几种策略，以提高热膨胀膜的低系数。例如，已经研究了化学添加化学因其与机械性能改善的芳族聚酰亚胺膜合成的潜力。
One contributing factor to the enhanced toughness of these films is the enhanced stability of imide rings which are generated during the solvent evaporation phase of processing. Fully chemically-imidized films possess superior in-plane orientation and close packing. The authors have also highlighted research into introducing ester-linked bonds and fluorinated group loadings, which has demonstrated favorable improvements to the properties of low coefficient thermal expansion films.
The team has highlighted current research into colorless films for use in flexible displays. One limitation of these films is their color, which ranges from yellow to brown. Currently, there is a high demand for films with superior heat resistance due to recent rapid progress in the field of optoelectronics. A major drawback, however, is the need to finely balance the material’s thermal properties, mechanical strength, and optical transparency. Several strategies have been developed in recent years, which have been explored in depth in the review.
评论中强调了无机杂交聚酰亚胺膜。近几十年来，一个有趣的研究方向是在太空探索中使用这些材料来承受外太空的恶劣环境，它们在太阳阵列，热毯和充气组件等多个组件中使用。欧洲杯足球竞彩近年来，对可以承受严格空间的自我修复材料进行的研究，聚欧洲杯足球竞彩酰亚胺膜和高级涂料具有巨大的潜力。
未来的研究方向
The review has investigated future research directions for this exciting class of multi-functional materials to meet the demands of optoelectronics and microelectronics. Future prospects include precise control of physical changes and chemical reactions during film formation, surface modification of films including plasma treatments, improvements in the design of copolyimide film molecular structure, and imbuing polyimide films with unique properties using an inorganic-organic hybrid method.
Further Reading
Wu, Z et al. (2022)用于电子应用的芳族聚酰亚胺膜的进展[online]聚合物14（6）1269 |mdpi.com。可用网址：https://www.mdpi.com/2073-4360/14/6/1269
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