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In the rapid development of electric vehicles (EVs), battery system safety remains the "Sword of Damocles" hanging over the industry. Thermal runaway, electrical spark ignition, metal corrosion—every minor risk could escalate into a fatal hazard. While traditional flame-retardant materials partially address these issues, their high costs, processing challenges, and corrosive side effects have hindered industry progress. As a global leader in chemical and material science, BASF has revolutionized this safety battle with its Red Phosphorus Flame-Retardant Ultramid® PA6. This breakthrough not only redefines performance standards for flame-retardant materials but also emerges as the ideal choice for EV core components, combining high safety, cost efficiency, and seamless mass production.

This article systematically expounds on the development process of China's special engineering plastics industry from the germination stage to the maturity stage, analyzes the current industry situation at the critical stage of transition, covering influencing factors such as policies, technologies, and the market. It also introduces the upstream, midstream, and downstream situations of the industry chain, including the supply of raw materials, production, and the demand in application fields. At the same time, it explores the opportunities and challenges of green development that the industry is facing.

In modern industry and everyday life, friction and wear of mechanical components consume energy, shorten equipment life, and can also cause annoying noise. How can you achieve smoother gears, more durable bearings, and quieter equipment? The application of self-lubricating plastic materials provides an innovative solution to this dilemma. This material not only retains the advantages of traditional plastics, such as light weight and easy molding, but also "self-lubrication", becoming an effective means for mechanical engineers to solve friction and wear problems.

With the increasing demand for high-frequency and high-speed transmission, PEI has reduced its dielectric constant to below 3.0 (at 1 GHz) through molecular structure optimization (such as the introduction of fluorinated groups), making it a core material for 5G millimeter-wave connectors.

Here is the English translation of the provided text, maintaining the structure, terminology, and nuances: From the Industrial Revolution to the Rise of the Polymer Industry Since DuPont invented nylon and coined the term "NYLON," launched the ZYTEL brand in 1954, and up to the present day, the modified applications of nylon and high-temperature nylon (HTN) in sectors like automotive, electronics, consumer goods, military, and aerospace have spanned over 70 years. However, the foundational equipment for modifying engineering plastics is certainly not something a 300,000 RMB extruder can handle.

The shrinkage rate of plastic reflects the degree of dimensional reduction in a plastic part after it is removed from the mold and cooled. Factors affecting plastic shrinkage include the type of plastic, molding conditions, and mold structure. Different plastics exhibit varying shrinkage rates. Additionally, the shrinkage rate is significantly influenced by the part's shape, complexity of internal structure, and the presence of inserts.