Semi-Permeable Membranes TRIZ Cases

A filtration device uses a passage member with varying cross-sectional areas to induce convection and slow liquid flow upstream of the filter.

Reactive plasma treatment produces uniform nanopores in graphene, balancing permeance and selectivity for gas separation.

Overmolded connection portions fix support structures and retain filtering membranes, resolving production complexity caused by fragile membrane handling.

A tetrafluoroethylene polymer with controlled heat-of-fusion ratios enables uniform pressure loss distribution across air filter media.

A PVDF and PDMS composite membrane enables real-time neutral gas measurement in aqueous systems.

A tapered outlet port configuration maintains liquid-tight flow in blood treatment filters.

A rigid porous support with rectangular circulation ducts enhances permeation flux through optimized tangential flow geometry.

An integrated breakable membrane seals fluid lines and opens during Luer coupling to eliminate manual preparation steps.

Electrodialysis replaces ion exchange resin to reduce wastewater generation during xylitol production from tropical fruit biomass.

Controlled surface roughness on the hydrophobic polymer adsorbent improves white blood cell removal while preventing blood coagulation.

High permeability polybenzoxazole membranes separate CO2 from natural gas streams at elevated temperatures.

Nanofibers between films allow vapor diffusion while blocking liquid water, solving the trade-off between waterproofing and breathability.

Rigid porous purification block reduces chlorine levels using embedded oxidizing agents, maintaining high water flow rates under low pressure.

Hollow fiber membrane filtration concentrates pathogenic cells from food samples, reducing detection time from days to hours while maintaining high sensitivity.

Segmented modules extract waste via gravity while biological filters regenerate naturally, reducing maintenance frequency.

A hollow cylindrical simulation model deflects light through radial openings to mimic fluid absorption properties in blood leak detectors.

Needled inorganic fiber mat uses vertical bundles to resolve the contradiction between surface pressure and peel strength in exhaust gas cleaning.

High-temperature microporous membranes shift dehydrogenation equilibrium to boost olefin throughput while reducing capital costs.

Redistributing flowable medium via a stamp reduces displacement distance and contact force, shortening lithography cycle time.

A membrane separator processes desorbent streams to remove non-aromatic contaminants from simulated moving bed xylene separation systems.

Replacing toxic organotin catalysts with a bismuth-amine complex resolves contradictions between curing speed and storage stability while ensuring non-toxicity.

Rapid heating and cooling nucleate a dense glass-ceramic seal, solving thermal stress issues in oxygen transport membranes.

A continuous process converts green parts into porous metal structures using controlled mass transfer and chemical reactions.

A hollow fiber degassing module maintains a packing ratio of 43% or less to preserve inter-fiber gaps during ceramic ink processing.

A carbon membrane air separation module produces nitrogen-enriched air for aircraft fuel tanks.

Catalytic ammonia decomposition generates hydrogen to resolve urea deposition and low-temperature SCR inefficiency.

Sharpened end portion reduces adhesive strength on air permeable filters, enabling low-tension peeling without deformation or pick-up errors.

Segmented frit structure applies programmable cross flows to separate particles, preventing smaller particle dilution and larger particle trailing.

Spatially variable dielectric thickness modulates electric fields to control electrowetting, reducing electrical connection complexity in integrated circuits.

A porous ceramic membrane forms via controlled polymer decomposition and sintering to achieve high permeation flux.

A phase separation reactor uses a pH-responsive layer to switch between oleophilic and hydrophobic states.

Pre-sintered ceramic powder minimizes firing shrinkage below 10%, preventing asymmetric deformation and preserving structural integrity in foundry filters.

Functionalized glycerol derivatives lower viscosity and boost CO2 absorption, enabling efficient mass transfer in membrane contactors.

Segmented planar chambers with joint portions prevent shape collapse while preserving nutrient permeation paths.

Ion exchange removes non-framework alkali metals from DDR zeolites to reduce process variability and foulant sensitivity in gas separation.

Alumina surface layer prevents cracks under high pressure, maintaining separation performance at 6 MPa.

An undulating guide surface directs cardiotomy liquid flow to minimize splashing and blood trauma at low pediatric flow rates.

Incorporating pendant functional comonomers during polymerization avoids plasma-induced chain scission while enabling controlled post-reaction modifications.

Adjusting temperature and concentration controls pore diameters in stacked MOF layers, resolving manufacturing complexity.

Segmenting the canister from the frame assembly eliminates the need to remove the entire heavy structure, reducing maintenance time.

Rotating locking elements secure detachable adapters to filter ports, resolving installation difficulties in confined spaces.

A stair-step membrane array moves fluid samples through porous layers, reducing hemolysis and background interference during whole blood analysis.

A flow passage structure uses branch paths with smaller diameters to increase fluid turbulence and contact interface area.

A temporary positioning aid prevents electronic data carrier migration during elastomer vulcanization, ensuring precise placement and reliable traceability.

Segmented zones and an intermediary membrane allow oxygen transfer while preventing shear damage to fragile biomass cultures.

Heavily doped silicon electrodes resolve corrosion and electromigration issues while maintaining electrical reliability.

Asymmetric composite membranes use phase inversion to create carbon nanotube channels for high water permeation.

A microfluidic diagnostic chip uses a secondary pump to pull analyte particles into a branch channel for precise size-based separation.

A multi-layer porous filter structure uses capillary action and periodic compression to drain liquid and rinse the filtration surface.