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Product Introduction
The Sintered Porous Polyethylene (PE) Filter With Strong Acid Resistance is a precision-engineered, monolithic filtration component fabricated via controlled thermal sintering of ultra-high-molecular-weight polyethylene (UHMWPE) powder. This 200mm-long, closed-end tubular filter features a pore gradient structure with 1-2μm nominal filtration accuracy, achieved through optimized particle size distribution (PSD) and multi-stage sintering protocols. Its seamless, joint-free design eliminates leakage risks while ensuring mechanical stability under pressures up to 6 bar (at 25°C). The UHMWPE matrix exhibits exceptional chemical inertness, resisting concentrated acids (e.g., 98% H2SO4), alkalis (e.g., 40% NaOH), and organic solvents, validated by ASTM D543 and ISO 175 compatibility testing.
Designed for high-purity applications, the Sintered Porous Polyethylene (PE) Filter With Strong Acid Resistance operates within a thermal range of -40°C to 116°C (intermittent), maintaining structural integrity via cross-linked polyethylene chains (C-C bond energy: 346 kJ/mol). Its hydrophobic surface (contact angle >120°) minimizes liquid absorption, while the tortuous, interconnected pore network achieves 85-92% porosity for flow rates up to 12 L/min·cm² at ΔP=1 bar. Critical in pharmaceutical catalyst recovery and semiconductor electrolyte purification, this filter complies with USP Class VI and FDA 21 CFR 177.1520 standards, ensuring ultra-low extractables (
Specifications
Material: PE
Pore size: 1-2um
Outer Diameter: 38mm
Inter Diameter: 19mm
Technique: Sintering
Advantages of Sintered Porous Polyethylene (PE) Filters
Precision Filtration Performance
The Sintered Porous Polyethylene (PE) Filter achieves 1-2μm filtration accuracy through gradient sintering of UHMWPE particles with optimized size distribution (D50: 15-25μm). This monolithic structure eliminates fiber shedding risks, ensuring USP Class VI-compliant purity for pharmaceutical and bioprocessing applications.
Unmatched Chemical Inertness
Engineered with cross-linked polyethylene chains (C-C bond energy: 346 kJ/mol), the filter resists concentrated acids (98% H₂SO₄), alkalis (40% NaOH), and aggressive solvents (e.g., DMSO, acetone), validated by ASTM D543 and ISO 175 chemical compatibility testing.
Thermal Stability Under Extreme Conditions
The UHMWPE matrix maintains structural integrity across -40°C to 116°C (intermittent), with pressure ratings up to 6 bar at 25°C. HDPE variants withstand continuous 82°C operations, supported by a thermal deformation resistance of 0.5% strain at 4 bar/60°C.
High Flow Rates with Extended Service Life
A tortuous pore network (85-92% porosity) enables flow rates up to 12 L/min·cm² at ΔP=1 bar. The hydrophobic surface (contact angle >120°) minimizes fouling, while gas-liquid reversible backflushing restores 98% initial permeability after 500+ cycles.
Customizable Surface Functionality
Three surface modifications address diverse applications:
Hydrophilic (contact angle
Hydrophobic (contact angle >120°) for gas filtration
Self-sealing variants that block liquid penetration above 0.3 bar, ideal for medical check valves.
Regulatory Compliance for Critical Industries
The filter meets FDA 21 CFR 177.1520 and MIL-STD-282 standards, delivering ultra-low extractables (
Application
Pharmaceutical Catalyst Recovery
Sintered Porous PE filters with 1-2μm UHMWPE pore structures achieve >99.8% catalyst retention in API synthesis. Their chemical inertness (resistant to 98% H₂SO₄, 40% NaOH) ensures compatibility with harsh reaction media, while USP Class VI certification guarantees pyrogen-free performance for GMP-compliant processes. Hydrophobic variants (contact angle >120°) enable gas venting during batch reactions without liquid breakthrough.
Semiconductor Ultrapure Water (UPW) Systems
UHMWPE filters (1μm nominal rating) reduce particle counts to
Fuel Cell Hydrogen Purification
Hydrophilic sintered PE membranes (10-20μm) remove oil aerosols and particulate matter from reformate gas streams, achieving
Medical Device Venting Solutions
Self-sealing PE filters (35-70μm HDPE) act as hydrophobic barriers in dialysis machines and infusion pumps, blocking liquid penetration above 0.3 bar while permitting bidirectional gas exchange. Autoclavable at 134°C (20-minute cycles), they comply with ISO 80369-3 for medical connectors.
Chemical Processing Corrosion Control
UHMWPE sintered tubes (4-5μm) filter aggressive media like 70% HNO₃ and DMSO at 80°C, outperforming PTFE in flow-permeability ratios (12 vs. 8 L/min·cm²). ASTM D543-certified chemical resistance extends service intervals by 40% compared to ceramic alternatives in electropolishing baths.
Wastewater Sludge Dewatering
Large-pore HDPE sintered plates (50-70μm) achieve 35% solids content in sludge cakes via mechanical compression (5 bar operating pressure). The non-fouling surface reduces cleaning frequency by 60% versus polypropylene screens in belt filter presses.
Biopharmaceutical Single-Use Systems
Gamma-stable UHMWPE filters (0.2μm) integrate into disposable bioreactor bags, providing particle-free venting with
Food & Beverage Sterile Filtration
FDA-compliant PE sintered cartridges (0.5μm absolute rating) remove yeast and spoilage organisms from viscous liquids like syrups and edible oils. Withstand CIP cycles using 4% caustic at 85°C, maintaining >99.999% LRV (log reduction value) after 500+ sterilization cycles.
Package and Shipment
1. Sintered Filters are usually packed in cartons, wrapped in soft film, and fixed in a box filled with industrial foam cotton, and the outer baler is packed with plastic bags with no damage during transportation.
2. Wooden box export packaging can also be customized. The foam cotton can be filled and fixed, the external box is sealed, the bottom is specified, the whole packaging is processed, and the goods can be delivered to the customer's designated place without damage.
Contact Us
TEL: +8619992203758
FAX: 0917-3873009
Email:karrykang@bjygti.com
Company: TOPTITECH -- BAOJI YINGGAOCO., LTD
Website:https://www.toptitech.com/
ADD: No. 195, Gaoxin Avenue, High-tech Development Zone, Baoji City, Shaanxi, China
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