Titanium Mesh-Felt Composition Plate for Sodium Hypochlorite Generator

Titanium Mesh-Felt Composition Plate for Sodium Hypochlorite Generator

Titanium Mesh-Felt Composition Plate for Sodium Hypochlorite Generator combines sintered titanium fiber felt with titanium expanded mesh through vacuum diffusion bonding, creating a high-porosity electrode substrate for electrochlorination systems. This composite structure delivers 70% porosity with graded pore distribution, enabling efficient brine electrolyte flow and chlorine gas release while maintaining low electrical contact resistance below 10 mΩ·cm². The titanium fiber felt side enhances catalytic coating adhesion for mixed metal oxide (MMO) formulations like ruthenium-iridium or platinum, whereas the titanium mesh layer provides mechanical reinforcement against electrode deformation during prolonged electrolysis. Grade 1 titanium construction ensures complete corrosion resistance in NaCl electrolyte environments, eliminating degradation risks associated with stainless steel or carbon-based alternatives. Operating current densities range from 200 to 2000 A/m², with the porous architecture promoting bubble detachment kinetics essential for steady-state chlorine evolution reaction.

Unlike conventional punched plate or woven mesh anodes, this sintered hybrid matrix expands electrochemically active surface area by 3–5 times through its three-dimensional fiber network without increasing geometric footprint. The diffusion-bonded interface between felt and mesh layers prevents delamination under thermal cycling and mechanical vibration in marine growth prevention systems (MGPS) and ballast water treatment equipment. Precision-controlled sintering at 1000–1150℃ in vacuum furnaces yields consistent pore interconnectivity, optimizing Faraday efficiency while minimizing hypochlorite decomposition back to chloride. Available with platinum-group metal oxide coatings (Ru-Ir, Ir-Ta, or Pt) applied via thermal decomposition, with 5–15 μm coating thicknesses delivering 2–5 years of operational life in continuous chlorination duty cycles. Meets ASTM B265 specifications and passes accelerated life tests (ALT) for chlorine evolution potential and dimensional stability.

Specifications

Material: Titanium expanded mesh+Titanium fiber felt

Size: 100*100*1.5mm

Pore size: 10 microns

Technical: Sintering

Features

Expanded Electroactive Surface Area – The sintered titanium fiber felt layer introduces a three-dimensional porous structure. This multiplies catalytic coating sites compared to solid mesh or punched plate, directly improving chlorine generation per unit footprint.

Optimized Porosity for Two-Phase Flow – The composite maintains high porosity with graded pore channels. Brine electrolyte penetrates freely while chlorine bubbles detach rapidly, avoiding gas blinding and voltage drift under continuous electrolysis.

Low Contact Resistance Across Layers – Vacuum diffusion bonding fuses felt and mesh into one conductive unit without mechanical clamping. The resulting interface eliminates interfacial gaps, lowering ohmic loss during high-current operation.

Reinforced Structural Stability – The titanium expanded mesh backbone adds mechanical strength to the soft fiber felt layer. Resists creep, warping, and vibration fatigue in marine growth prevention systems (MGPS) and ballast water treatment equipment.

Delamination-Free Sintered Bond – High-temperature vacuum sintering creates a metallurgical joint between felt and mesh. No adhesives or fasteners means no interfacial separation under thermal cycling or pressure fluctuations.

Ready for Mixed Metal Oxide (MMO) Coatings – The fiber felt side anchors ruthenium-iridium, iridium-tantalum, or platinum oxide coatings via thermal decomposition. Coating thickness tailored to application, delivering extended service life with stable chlorine overpotential.

Applications

Marine Growth Prevention Systems (MGPS) on Vessels – Installed in seawater cooling lines of ships and offshore platforms. The plate generates low-concentration sodium hypochlorite directly from seawater, preventing barnacle, mussel, and algae accumulation inside pipework and heat exchangers.

Ballast Water Treatment Systems – Used as the anode component in electrochlorination units for ballast water disinfection. Meets IMO D-2 and USCG standards by producing residual oxidants to eliminate invasive aquatic organisms without external chemical dosing.

Power Plant Intake Seawater Chlorination – Deployed in once-through cooling systems of coastal power stations. Continuous low-level chlorination controlled by the plate’s stable chlorine evolution prevents biofouling on condenser tubes and intake structures.

Municipal and Industrial Brine Electrochlorination – Operates in on-site sodium hypochlorite generators for water disinfection. Converts brine (NaCl solution) into sodium hypochlorite at the point of use, replacing transported liquid bleach and reducing storage hazards.

Desalination Plant Pretreatment – Integrated into seawater reverse osmosis (SWRO) facilities upstream of membrane units. Short-term shock dosing via the titanium composite plate controls biofouling on intake pipes and filtration media without heavy metal residues.