Core Viewpoint - The article discusses the increasing concern over electromagnetic radiation from electronic devices and the importance of electromagnetic shielding materials in protecting both human health and electronic systems from electromagnetic interference [1][3]. Group 1: Industry Overview - The Ministry of Industry and Information Technology reported that by the end of 2024, China will have 4.251 million 5G base stations, an increase of 874,000 from the previous year, with 5G base stations accounting for 33.6% of all mobile phone base stations, up 4.5 percentage points year-on-year [1]. - The development of electromagnetic shielding materials is crucial for the advancement of 5G communication and national defense technology [1]. Group 2: Types of Electromagnetic Shielding Materials - Conductive polymer composite materials can be categorized into several types, including: - Metal-filled conductive polymer composites, which enhance conductivity and electromagnetic shielding performance [6][7]. - Carbon-based conductive polymer composites, which are lightweight and have strong conductivity [9]. - Magnetic particle-filled conductive polymer composites, which utilize magnetic materials to enhance shielding effectiveness [10]. - Hybrid filler conductive polymer materials, which combine various fillers to optimize performance [11]. Group 3: Structural Optimization of Shielding Materials - Structural optimization techniques include: - Isolation-type conductive polymer composites that create a honeycomb network structure for better conductivity and shielding [13]. - Layered conductive polymer composites that enhance electromagnetic shielding through multiple interfaces [16]. - Porous conductive polymer composites that reduce weight while maintaining effective shielding performance [18][19]. Group 4: Advances in Conductive Polymer Shielding Materials - Intrinsic conductive polymer shielding materials are created through chemical or electrochemical doping, resulting in materials with low density, high corrosion resistance, and strong strength [23]. - The core of electromagnetic shielding materials is conductivity, with traditional metal shells being replaced by various conductive plastics and composites that offer better performance and lower costs [24][25]. Group 5: Future Trends and Developments - The demand for high-performance polymer-based electromagnetic shielding materials is increasing, driven by advancements in AI, 5.5G/6G, and other emerging technologies [28][29]. - The upcoming 2025 Polymer Industry Annual Conference will focus on the latest developments in electromagnetic composite materials and their applications [30][31].

Core Viewpoint - The article emphasizes the significance of polymer electromagnetic shielding composite materials in addressing electromagnetic interference and ensuring the stable operation of electronic devices, particularly in the context of rapid advancements in AI, 5.5G/6G, and other emerging industries [1][4]. Forum Information - The forum will take place on September 11-12, 2025, in Hefei, Anhui, organized by Ningbo DT New Materials Technology Co., Ltd. [2] - The conference will be chaired by Qian Xigao, an academician of the Chinese Academy of Engineering [2]. Key Topics - The forum will cover various topics including the current status and future trends of electromagnetic shielding polymer composites, advancements in 5G/5.5G/6G communication, and the application of these materials in advanced electronic packaging [3][4][5][6]. Industry Status and Future Trends - The demand for high-performance, wide-bandwidth, high-temperature resistant, and multifunctional polymer electromagnetic shielding composites is increasing due to the rapid development of integrated and miniaturized electronic devices [1][4]. Research Progress - The article highlights ongoing research in polymer electromagnetic shielding composites, including the use of graphene, carbon nanotubes, and other advanced materials to enhance shielding effectiveness [5][8]. Applications in Communication - The forum will discuss the application of electromagnetic shielding materials in 5G/5.5G/6G base stations, including their use in enclosures, connectors, and circuit breakers [8][9]. Material Involvement - Various materials will be discussed, including PCB substrates, antenna materials, and carbon-based shielding materials, which are critical for the development of advanced electronic devices [12][15]. Overall Conference Agenda - The conference will feature discussions on market analysis, investment opportunities, and the impact of AI on the development of electromagnetic shielding materials [16][14]. Special Activities - The event will include technology roadshows, strategic discussions, and an awards ceremony for innovative materials in the polymer industry [18][21].

Core Viewpoint - The article discusses the recent developments in the production of polyimide (PI) films in China, highlighting the investments and projects by various companies, particularly Inner Mongolia Zhongke Jiuyuan New Materials Technology Co., Ltd., which is expanding its production capacity to meet the growing demand in high-tech applications [2][4][16]. Group 1: Company Developments - Inner Mongolia Zhongke Jiuyuan has initiated a PI film production project with a total investment of 700 million yuan, planning to set up 24 production lines with an annual capacity of 3,000 tons [2]. - The company is a wholly-owned subsidiary of Zhejiang Zhongke Jiuyuan, which has signed a total investment agreement of 2.1 billion yuan for PI film production projects, including an initial phase with 24 production lines and a future phase with an additional 48 lines [4]. - Zhongke Jiuyuan has established nearly 50,000 tons of related production capacity across various provinces including Zhejiang, Anhui, Inner Mongolia, and Shanxi [4]. Group 2: Market Potential and Applications - PI films are recognized for their unique properties such as high mechanical performance, chemical resistance, flexibility, thermal stability, and electrical insulation, making them suitable for applications in flexible circuit boards, displays, and electronic devices [6]. - The demand for PI films is expected to grow significantly, particularly in the emerging 5.5G/6G technology sectors, where PI's dielectric performance can be enhanced through specific formulations [6][16]. - The global market for PI films is currently dominated by foreign companies, with major players holding approximately 80% of the high-end PI film market share [16]. Group 3: Technological Advancements - Recent advancements in domestic PI film production have led to the emergence of several companies capable of breaking the foreign monopoly, with notable examples including Zhuzhou Times New Material Technology, which has developed high-end electronic-grade PI films [8][9]. - Innovations in production processes, such as the introduction of AI algorithms for optimizing film thickness and efficiency, have been reported, enhancing production capabilities and quality [14]. - Research teams are also making strides in developing new materials, including bio-based PI materials and high thermal conductivity composites, indicating a trend towards more sustainable and high-performance products [15][13].

Core Viewpoint - Japanese chemical giants are actively investing in bio-based chemicals and materials while simultaneously withdrawing from other sectors, indicating a strategic shift towards sustainable materials [1] Group 1: Industry Developments - Sumitomo Chemical has successfully established mass production technology for bio-based liquid crystal polymers (LCP), with plans to launch the product by 2027 [2] - Kaneka Corporation is the first in China and the second globally to launch a new generation of low-carbon LCP materials, Vicryst® LCP CER-B, certified by ISCC PLUS [3] - Kaneka is a strong advocate for bio-based materials, showcasing its commitment at international exhibitions [4] Group 2: Product Characteristics and Applications - LCPs are specialized engineering plastics known for their excellent mechanical properties, chemical resistance, flame retardancy, and high thermal stability (200-240°C, short-term up to 300°C) [7] - LCPs are crucial for high-end applications in 5G communication, automotive power devices, and medical equipment, with over 70% market share in downstream applications [7] - LCPs are categorized into solution-oriented (L-LCP) and thermoplastic (T-LCP) types, with varying heat distortion temperatures (HDT) [8] Group 3: Market Potential and Future Trends - The demand for LCPs is expected to rise significantly with advancements in 5.5G/6G technology, increased penetration of electric vehicles, and the mass production of humanoid robots [13][15] - The anticipated demand for LCPs in high-frequency communication could reach tens of billions of square meters, indicating a potential 1000-fold increase in production capacity [14] - In the automotive sector, the need for larger connectors and improved signal quality will drive the demand for high-end LCPs [15]