The production of PEEK film includes three parts: polymer synthesis, preparation of high-quality polymers, and film manufacturing

Polyether sulfone (PEEK) is a thermoplastic elastomer that is polymerized from formaldehyde and tetraethylenepentamine in the presence of a catalyst. PEEK has excellent heat resistance, chemical stability, and mechanical properties, and has become an important thin film material. There is a significant gap in performance between polyetherimide film and polytetrafluoroethylene (PTFE) film in various aspects. However, due to the much cheaper price of polyetherimide (PEEK) compared to PTFE, and its high temperature resistance, no vacuum is required during processing, and it can be cooled in air, PEEK film is widely used in the field of electronics and electrical appliances.

Brief introduction

PEEK is a high-performance engineering plastic with excellent heat resistance, chemical resistance, and mechanical properties. Compared with other engineering plastics, it has the advantages of light weight, corrosion resistance, high mechanical strength, good electrical performance, and good electrical insulation, and is known as the material of the 21st century.

Polyetherimide is a special thermoplastic elastomer that possesses the characteristics of thermoplastic elastomers (TPE) and thermosetting elastomers (TPI), as well as excellent properties such as flame retardancy, wear resistance, aging resistance, and chemical resistance. It is non-toxic and a new type of environmentally friendly material. At present, the industrialized polyetherimide plastic products in the world include PEEK (polyetherimide) and PEO (polyetherimide).

2、 Core Technology

The production of PEEK film includes three parts: polymer synthesis, preparation of high-quality polymers, and film manufacturing. Among them, the synthesis of polymers is the core technology, which determines the quality of the film, and the polymer preparation process directly affects the performance of the film.

3、 Application

PEEK is a thermoplastic engineering plastic with excellent comprehensive performance, and its unique characteristics make it widely used in fields such as electronics, electrical, chemical, and machinery.

1. In the field of electronic appliances: PEEK has excellent heat resistance and chemical stability, and can be used to manufacture insulation layers, protective films, etc. Its weather resistance is also very good, so it can be used to manufacture capacitor materials.

2. In the military industry: PEEK has excellent mechanical and heat resistance properties, making it suitable for manufacturing tank shells, armor parts, etc. In addition, PEEK also has excellent properties such as high temperature resistance, weather resistance, and dimensional stability, making it suitable for making high-temperature resistant devices used in high-temperature environments.

3. Other fields: PEEK has high toughness and elasticity, and plays an important role in engineering plastics. In addition, PEEK also has excellent flame retardancy and moisture absorption properties.

4、 Industry Trends

China's polyether sulfone (PEEK) industry has made significant breakthroughs: Sinopec Shanghai Petrochemical Co., Ltd. and Dow Chemical Company announced the successful development of polymer elastomer materials using polyether sulfone as raw material, and plan to build the world's first polyether sulfone production plant with an annual output of 500 tons in Shanghai. This is the first time that China has independently developed polyether sulfone materials and achieved industrial production, which is of great significance for breaking the foreign technology blockade and promoting the localization of polyether sulfone materials.

5、 Technical Roadmap

The present invention relates to a PEEK film, characterized in that the PEEK film comprises one or more layers of polyetherimide film, wherein one or more layers of polyetherimide film are stretched, blown, and extruded, and the other layer or multiple layers of polyetherimide film are vacuum filtered and freeze-dried. The preparation process comprises the following steps: placing the prepared layer or multiple layers of polyetherimide film material in a stretched state to a certain extent, and freeze-drying the stretched film in a freeze dryer to the desired degree of drying, and the PEEK film can be used.