A New Journey for Fluorine Materials: Longxin Drying Boosts Efficiency in Fluoropolymer Post-Treatment

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A New Journey for Fluorine Materials: Longxin Drying Boosts Efficiency in Fluoropolymer Post-Treatment

2026-07-17

Spring brings flourishing nature and rewarding results from long-term accumulation. At Longxin Intelligent’s Pilot & Industrialization Base for Micro-Nano Material Preparation, a spray drying test for ultrafine PVDF powder used as lithium battery binders was successfully completed for a leading fluoropolymer client. From process R&D to full production line commissioning, Longxin delivers all-round drying and purification solutions for fluoropolymer post-treatment. This landmark breakthrough not only elevates Longxin’s technical prowess in high-end fluorine material equipment to new heights, but also ushers in a new era of domestic production and intelligent manufacturing for core post-treatment processes of China’s fluoropolymer industry.

Booming Market & Prominent Pain Points: Challenges Facing Fluoropolymer Post-Treatment

The rapid expansion of global new energy, semiconductor, 5G communication and aerospace industries has generated unprecedented demand for high-performance fluoropolymer materials. Fluoropolymers have become an indispensable cornerstone of strategic emerging industries, covering PVDF binders for lithium-ion batteries, perfluorosulfonic acid (PFSA) resins for proton exchange membranes at the core of hydrogen fuel cells, as well as corrosion-resistant and heat-resistant fluoroplastics including PTFE and PFA. As applications shift toward high-end scenarios, the market imposes increasingly stringent requirements on material purity, particle size distribution, flowability and batch consistency.

Despite bright market prospects, the post-treatment of fluoropolymers has long been plagued by severe bottlenecks. Traditional drying and purification processes are plagued by high energy consumption, low solvent recovery rates, severe material agglomeration and residual impurities. Especially when handling difficult materials such as PVDF slurry and suspended PTFE powder, conventional equipment cannot balance high output and superior product quality, often resulting in inconsistent material performance or even product scrapping due to cross-contamination. In addition, volatile organic solvents and wastewater generated during fluoromaterial production pose immense pressure on environmental compliance. Breaking through process bottlenecks to realize efficient, eco-friendly and intelligent post-treatment has become a critical constraint restricting high-quality development of the fluoropolymer sector.

Longxin’s Solutions: Innovative Drying Technologies Redefine Fluoropolymer Post-Treatment Standards

To address industry pain points, backed by profound technical reserves and continuous independent innovation, Longxin Drying has rolled out a full range of customized post-treatment solutions exclusively for fluoropolymers, covering the full lifecycle from laboratory R&D to large-scale industrial mass production.

1. PVDF Slurry Gas Flow Spray Dryer: An Innovative Upgrade for Battery-Grade Binders

Catering to the extreme requirements of lithium battery-grade PVDF binders for uniform particle size, low residual solvent and superior dispersibility, Longxin’s gas flow spray dryer for PVDF slurry overcomes historic process limitations and enables intelligent production lines.

Adopting exclusive gas atomization technology, the equipment precisely controls droplet size to produce powder with ideal sphericity and narrow particle size distribution after drying.
Built-in intelligent temperature control enhances the electrochemical performance and batch stability of finished products, providing solid material support for the manufacturing of high-end power batteries.

2. Gas Flow Drying System for Suspended PTFE: Resolving Contamination and Agglomeration Issues

Due to its unique suspended properties, PTFE powder is prone to agglomeration, wall adhesion and external contamination when processed with traditional drying equipment.

Longxin’s gas flow drying system for suspended PTFE features full-link optimization spanning feed pretreatment, drying, final cooling and packaging.
A specially designed gas-solid flow field maintains PTFE particles in a highly dispersed suspended state inside the drying pipeline, enabling instantaneous heat and mass exchange to eliminate caking caused by local overheating.
A fully enclosed clean design paired with an in-line filtration system completely blocks foreign impurity ingress, delivering ultra-high-purity PTFE powder that meets the demands of semiconductors and high-end anti-corrosion applications.

3. PVDF & ETFE Flash Dryers: Intelligent Upgrades Drive Cost Reduction & Productivity Growth

For fluororubbers and resins such as PVDF and ETFE, Longxin’s intelligent flash dryers integrate advanced PLC control systems and online monitoring sensors to enable real-time regulation and automatic fault diagnosis throughout the drying process.

Equipped with high-speed crushing units, the equipment leverages instant contact between fragmented wet materials and hot air to remove surface and internal moisture within a short timeframe, drastically boosting processing capacity.
Flexible parameter settings accommodate materials with varying moisture content and viscosity, cutting unit energy consumption and labor costs to help fluororubber manufacturers achieve genuine cost reduction and efficiency improvement.

4. Closed-Loop Spray Dryer for PFSA Resins: Accelerating Large-Scale Hydrogen Energy Production

As the "heart" of hydrogen fuel cells, perfluorosulfonic acid (PFSA) resins require extremely strict environmental cleanliness and solvent recovery rates during production.

Longxin’s closed-loop spray dryer for PFSA is purpose-built for scale-up production from laboratory trials to full industrialization.
Operating under an inert gas-protected closed circulation system, the equipment prevents oxidative degradation of materials while achieving near-zero organic solvent emissions and high solvent recovery efficiency.

This groundbreaking technology resolves safety and environmental challenges hindering large-scale PFSA manufacturing and speeds up the commercialization of domestically produced proton exchange membrane materials.

5. High-Purity PFA Integrated Filter-Wash-Dry Machine: A Breakthrough in Refining & Purification Processes

For high-performance fluoromaterials such as melt-processable PTFE (PFA), Longxin’s high-purity integrated filter-wash-dry machine consolidates multiple working procedures within a single vessel.

Custom stirring structures and heating modes ensure full material dispersion during washing and uniform heating during drying, effectively removing reaction byproducts and impurity ions.
The fully enclosed, dead-space-free design satisfies ultra-high purity standards for electronic-grade and medical-grade PFA resins, setting new benchmarks for fluoropolymer refining and purification processes.

Future Outlook: Customized EPC Solutions Lead Green Intelligent Manufacturing

With years of deep engagement in advanced material purification and drying, Longxin Drying has accumulated comprehensive process expertise covering all key production stages of various materials. We recognize that clients demand far more than standalone high-performance equipment—they require systematic solutions that resolve practical production challenges and strengthen overall competitiveness.

Accordingly, Longxin delivers one-stop services including process package design, core equipment fabrication, production line integration and full EPC general contracting. Our systematic solutions are fully customized to unique production tasks and client demands, guaranteeing exceptional efficiency and reliability across the entire manufacturing workflow. Whether for new factory planning or technical transformation of outdated production lines, Longxin can deliver optimal technical roadmaps.

More importantly, all Longxin solutions adhere to the philosophy of green sustainable development. Optimized thermal utilization systems and solvent recovery technology maximize raw material utilization while minimizing water and energy consumption. This not only generates substantial economic benefits for clients, but also contributes to China’s dual carbon goals and efficient utilization of environmental resources.

A Steady & Far-Reaching New Journey for Fluorine Materials

Driven by technological innovation and guided by customer demands, Longxin Drying will continue to collaborate with partners across the fluoropolymer industry to tackle persistent post-treatment challenges. We will advance China’s fluorochemical industry toward high-end, intelligent and eco-friendly development, and jointly forge a brilliant future for fluorine material innovation.