Apexazole® PBI hollow fiber membrane

Apexazole® PBI (polybenzimidazole) nanofiltration membranes are a proprietary product independently developed by Zhongke Jinding. Leveraging their all‑aromatic heterocyclic structure, these membranes exhibit outstanding overall performance and demonstrate unique application value in gas purification. The core advantages of PBI nanofiltration membranes stem from their intrinsic material properties: the benzene and imidazole rings in the polymer backbone confer exceptional thermal stability—decomposing at temperatures exceeding 550°C in a nitrogen atmosphere—and chemical resistance, tolerating a full pH range from 0 to 14 as well as various organic solvents. Meanwhile, the basic nitrogen atoms on the imidazole rings can engage in specific interactions with gas molecules, enabling precise molecular‑size sieving and charge‑selective separation. In practical applications, PBI nanofiltration membranes deliver significant technical benefits: in high‑temperature gas separation, they operate stably at 200–400°C, seamlessly integrating into industrial processes for treating high‑temperature exhaust gases or syngas, thereby substantially reducing energy consumption; for acidic gas removal, they exhibit excellent rejection of H₂S, SO₂, and other acidic species, making them ideal for natural gas purification and flue‑gas desulfurization; and in organic vapor recovery, their superior resistance to organic solvents enables efficient separation and recovery of volatile organic compounds (VOCs). Furthermore, PBI nanofiltration membranes play a critical role in protecting the electrodes of high‑temperature proton exchange membrane fuel cells (HT‑PEMFCs), effectively filtering particulate impurities and metal ions, extending catalyst life, and enhancing system reliability. Zhongke Jinding offers PBI nanofiltration membranes with tailored molecular‑weight cut-offs and supports customized R&D collaborations to meet the diverse requirements of different gas‑purification processes.

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Product Details

Apexazole® PBI (Polybenzimidazole) Nanofiltration Membrane It is a distinctive product independently developed by Zhongke Jinding, which, thanks to its all‑aromatic heterocyclic structure, delivers outstanding overall performance and demonstrates unique application value in the field of gas purification. The core advantages of PBI nanofiltration membranes stem from their intrinsic material properties: the benzene and imidazole rings within the polymer backbone confer exceptional thermal stability—decomposing at temperatures exceeding 550°C under nitrogen—and chemical resistance, tolerating a full pH range from 0 to 14 as well as various organic solvents. Meanwhile, the basic nitrogen atoms on the imidazole rings can engage in specific interactions with gas molecules, enabling precise molecular‑size sieving and charge‑selective separation. In practical applications, PBI nanofiltration membranes exhibit remarkable technical merits: in high‑temperature gas separation, they operate stably at 200–400°C, seamlessly integrating into industrial processes for treating high‑temperature exhaust gases or syngas, thereby significantly reducing energy consumption; for acidic gas removal, they demonstrate excellent rejection of H₂S, SO₂, and other acidic species, making them ideal for natural gas purification and flue‑gas desulfurization; and in organic vapor recovery, their superior resistance to organic solvents enables efficient separation and recovery of volatile organic compounds (VOCs). Furthermore, PBI nanofiltration membranes play a critical role in electrode protection for high‑temperature proton exchange membrane fuel cells (HT‑PEMFCs), effectively filtering particulate impurities and metal ions, extending catalyst life, and enhancing system reliability. Zhongke Jinding offers PBI nanofiltration membrane products with tailored molecular‑weight cut-offs and supports customized co‑development to meet the diverse requirements of different gas‑purification processes.

Zhongke Jinding—empowering the green energy and environmental protection industries through materials innovation.

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