about
CNbeyond

The main business of our company are PTFE filter membrane, PTFE textile membrane and other PTFE composite material . The PTFE membrane are widely applied in the fabric for outdoor and functional garments, and also used in atmosphere dust elimination and air filtration, liquid filtration. They also have excellent performance in electronic, medical, food, biology engineering, and other industries. Along with the development of both technology and application, PTFE membrane will have favorable prospects in waste water treatment, water purification and sea water desalination, etc.

news and information

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PFAS-Free Regulations and ePTFE: What Buyers Must Know

PFAS regulation has moved from a state-level issue to a global compliance question in less than two years, and the textile supply chain is at the center of the wave. For ePTFE membrane buyers, the key insight is that the regulatory pressure is mostly directed at the DWR (durable water repellent) ...

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How to Choose an ePTFE Membrane Manufacturer in China

TL;DR — Choosing an ePTFE Membrane Manufacturer in China The two numbers that lock every other decision are pore size and IP rating — because the biaxial stretching line, the lamination chemistry, and the entire QA protocol are set by those two numbers. A genuine ePTFE manufacturer owns a biaxi...

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ePTFE vs PVDF Membrane: Which Is Better for Filtration?

TL;DR — Key Takeaways ePTFE (expanded PTFE) and PVDF (polyvinylidene fluoride) are fundamentally different membrane materials: ePTFE is expanded solid PTFE with a node-and-fibril microstructure; PVDF is a phase-inversion cast membrane with a broader pore size distribution ePTFE has near-univers...

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What Is a Bubble Point Membrane? Uses in Precision Filtration

A bubble point membrane is a microporous filter media whose largest pore can be measured, batch by batch, by the pressure at which a wetted membrane first passes a continuous stream of air. That single test — the bubble point test — is what makes precision filtration possible. It converts a vague...

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Composite Filter Media: How Substrate + ePTFE Lamination Works

A composite filter media is a laminated two-layer structure: a microporous expanded-PTFE membrane doing the actual particle capture, bonded to a nonwoven substrate providing mechanical strength, dimensional stability, and the bulk of the filter’s airflow resistance. The membrane alone cannot surv...

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