Porous Sintered Material, HDPE/UHMWPE, 20 μm (CAT#: STEM-BC-0117-ZJF)

Porous sintered material is a plastic filtration material made by sintering selected polymer powders. HDPE and UHMWPE are commonly used as sintered raw materials, while PP and PP/PE fibers can also be used for filter media. HDPE is commonly used for larger-pore filter materials, while UHMWPE is used for smaller-pore structures below 20 μm and high-porosity applications. The internal porous labyrinth structure provides controlled filtration and venting performance. The material can be assembled into devices through mechanical pressing or interference fitting, reducing the need for complex welding processes. Water-sealing versions can close when exposed to liquid and function similarly to a one-way barrier. Activated carbon composite versions combine particle retention with odor adsorption. The material can be customized into different molded structures or supplied as flat sheets for cutting.

Material options: HDPE, UHMWPE, PP, PP/PE fiber, activated carbon and PE composite
Pore size range: Below 20 μm for UHMWPE small-pore applications
Porosity: Up to 60% for selected applications
Sheet thickness range: 0.6 to 6 mm
Sheet size: 350 x 350 mm
Dimensional tolerance: ±0.1 mm for custom structures
Water pressure resistance: 10 to 100 kPa standard with higher values customizable
Working gas pressure:>50 kPa
SO2 adsorption condition: 10 ppm SO2 at 29.3 L/min
SO2 adsorption capacity: 0.87 mg/g at 70%
NH3 adsorption capacity: 0.94 mg/g at 70%
Toluene adsorption capacity: 4.25 mg/g at 70%

Simple mechanical assembly into devices
No ultrasonic welding required for typical sealing
Water-sealing function after liquid contact
Can act as an overflow protection filter
Activated carbon version supports odor adsorption
Custom molded structures available
Flat sheet format available for user cutting
Suitable for waste container overflow protection and blood collection venting

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