Name: Sintered Porous Polyethylene (PE) Filter With Strong Acid Resistance
Brand: TOPTITECH
SKU: 266098734

TOPTITECH's 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 (<0.1% TOC) and non-fiber-releasing performance under MIL-STD-282 test conditions.

Products Specifications

Material	PE
Filtration grade/Pore size	1-2um
Outer Diameter	38mm
Inter Diameter	19mm
Technique	Sintering

Products Features

Sintered Porous Polyethylene PE Filter With Strong Acid Resistance 4

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.

Sintered Porous Polyethylene PE Filter With Strong Acid Resistance 3

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 <30°) for aqueous solutions

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 (<0.1% TOC) and non-pyrogenic performance, essential for semiconductor ultrapure water (UPW) and vaccine production.

applications

Pharmaceutical Catalyst Services | Applied Catalysts

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 <5 particles/mL in UPW loops, meeting SEMI F57 standards. Cross-linked polyethylene chains (C-C bond energy: 346 kJ/mol) prevent ionic leaching (<0.1 ppb TOC), critical for sub-10nm chip fabrication. The closed-end 200mm tubular design withstands 6 bar steam sterilization cycles (SIP) at 116°C.

Fuel Cell Hydrogen Purification‌
Hydrophilic sintered PE membranes (10-20μm) remove oil aerosols and particulate matter from reformate gas streams, achieving <0.01 ppm hydrocarbon contamination. Operating at -40°C to 82°C with 4 bar burst pressure, these filters maintain 95% porosity for H₂ flux rates exceeding 15 L/min·cm² at 1 bar ΔP.

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.

What Is Sulphuric Acid? | The Chemistry Blog

Biopharmaceutical Single-Use Systems‌
Gamma-stable UHMWPE filters (0.2μm) integrate into disposable bioreactor bags, providing particle-free venting with <0.1 EU/mL endotoxin levels. Their joint-free construction eliminates extractables risk during cell culture processes spanning 14-21 days at 37°C.

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.