In recent years, with the serious deterioration of water environment quality and the rapid development of economy, the corresponding water resources technology is urgently required. In this field, membrane separation technology occupies an important position. The hollow fiber membrane has a large specific surface area and a high loading density of the membrane module, so the equipment is compact; this membrane is made of textile and has a simple process, so the production cost is generally lower than other types of membranes. PVDF membrane has good pollution resistance and good resistance to oxidizing cleaning agents. Therefore, in large-scale sewage treatment projects, especially in seawater desalination, PVDF hollow fiber membrane has unique advantages and huge market potential.

With the enhancement of global environmental awareness and the increasingly stringent environmental regulations, more and more attention has been paid to find the application of fluorine-free materials to replace PVDF. Fluorine-free materials do not contain harmful fluorides and have good environmental performance. In the research and development of hollow fiber membranes, the use of fluorine-free materials can not only reduce environmental pollution during production and use, but also improve product safety and sustainability.

Jintianchi company has a first-class core technology research and development team. After several years of painstaking research, it has designed and developed fluorine-free materials-which can replace PVDF in the application of water treatment membrane. The fluorine-free water treatment membrane has certain advantages in pure water flux, strength, pollution resistance, strong acid and alkali resistance, oxidation resistance and so on. Compared with PVDF, its main performance advantages are:

1. Hydrophilic, lipophilic adjustable;

2. The elongation rate exceeds PVDF 2.5 times.

Keywords: SBR CMC flexible agent cracking agent coated carbon aluminum foil adhesive graphene