(1) In the field of separation membrane raw materials, most membrane manufacturers currently have only a limited number of optional materials. After iterations of CA/PA/PAN/PE/PVC/PS/PES materials, the industry generally adopts PVDF/PTFE due to their excellent comprehensive performance in mechanical properties and chemical resistance. However, high-molecular-weight PVDF/PTFE with a molecular weight of millions faces significant technical bottlenecks. Bifei has developed high-molecular-weight PVDF/PTFE modified with hydrophilic and alkali-resistant properties, which is defined as BFPM — the core technology of BF Inside.

(2) In the field of separation membrane pore formation, the narrow-range and high-concentration pore-forming membrane-making technology is the key for separation membranes to break through the red ocean market and enter the blue ocean market. Bifei has mastered membrane manufacturing technology with 90-99% pore size concentration. This technology can supply membrane filaments or membrane elements for qualified industries. The membrane element is defined as BFMIN, another core technology of BF Inside.

(3) In the field of separation membrane packaging and application, Bifei’s exclusive technologies including uniform packaging technology, open assembly technology, and pressure-resistant dual-membrane direct connection technology are integrated to form membrane stacks or systems. Such systems serve as the key process packages for high-end water treatment systems and biomedical systems. The process package is defined as BFTB, the application technology of BF Inside.