1. Basic ConceptsPCB materials, also known as Copper Clad Laminate (CCL), are composite materials made up of an insulating substrate and copper foil covering it. The insulating substrate provides mechanical support and electrical insulation, while the copper foil is used to form circuit patterns.As of now, the maximum number of layers for commercially mass-produced PCBs … Read more
In recent years, with technological advancements, the production and quality of polyimide in China have continuously improved, providing favorable conditions for the development of the double-sided flexible circuit board industry. A double-sided flexible circuit board refers to a printed circuit board that has conductive circuit patterns formed on both sides of a flexible insulating substrate. … Read more
Hello, everyone! Today, let’s talk about a special material: the fighter jet of plastics—Polyimide (PI). I won’t go into too much detail about the characteristics of Polyimide (PI); you can refer to previous materials: Why Polyimide (PI) is Widely Used in High-End Semiconductor Fields The Industrial Chain of Polyimide (PI) 1) Upstream Binary anhydride PMDA, … Read more
1. Common Substrates for Flexible Circuit Boards These materials are widely used in consumer electronics and general industrial fields, offering good performance and cost-effectiveness. Polyimide (PI, Polyimide) Features: Polyimide is the most common substrate for flexible circuit boards, with excellent high-temperature resistance, mechanical strength, and electrical performance. It has good flexibility and can withstand high-temperature … Read more
Effect of Interfacial Trap on Surface Insulation Properties of ZnO/PI Composite Films Under Cyclic Thermal Aging WU Jiang 1,2 ,WANG Tingyu 1,2 ,WANG Xiaomin 1,2 ,GUO Jianhua 1,2 ,ZHANG Bo 1,2 ,SHANG Penghui 3 （1. School of Electronics and Information，Xi’an Polytechnic University，Xi’an 710048，China； 2. Xi’an Key Laboratory of Interconnected Sensing and Intelligent Diagnosis for Electrical … Read more
Research progress of polyimide as electrode materials for supercapacitors DING Chengcheng ,YU Juan ,HUANG Pei ,WANG Xiaodong （State Key Laboratory of Materials-Oriented Chemical Engineering，College of Chemical Engineering，Nanjing Tech University，Nanjing 211800，China） DOI：10.3969/j.issn.1001-3539.2024.01.025 Fund Information： National Natural Science Foundation Project (22035007) Abstract: The application advantages of supercapacitors and the development and characteristics of its electrode were briefly … Read more
1Introduction to the Results The triboelectric nanogenerators (TENGs) have a simple structure, low manufacturing costs, and are suitable for harvesting low-frequency mechanical energy, thus providing a new method for green energy collection. Previous studies have mainly focused on the effects of single factors such as charge generation, storage, or loss on the electrical output of … Read more
【Research Background】 Currently, the energy density of commercial lithium-ion batteries can reach 300 Wh kg−1, with the potential for further improvement. However, while pursuing high energy density, the safety issues of the batteries cannot be ignored. The separator, as one of the key components of lithium-ion batteries, functions to isolate the positive and negative electrodes … Read more
Recommended! Collection of Sample Proposals for Natural Science Foundation 1Research Background With the rapid development of modern power electronics and electrical systems in high-temperature environments, the demand for high-performance dielectric materials is increasingly urgent. Polymer dielectric capacitors, due to their low dielectric loss, ease of processing, and high breakdown strength, have been widely used in … Read more
👆If you wish to meet regularly, Welcome to star 🌟 and bookmark it~ With the rapid development of the electronic information industry, issues of electromagnetic leakage and high-temperature infrared radiation have become increasingly prominent. Particularly in the field of military protection, they can easily lead to information leakage and infrared exposure. Therefore, the design and … Read more