Membranes TRIZ Cases

Optimized Gurley value of 5 to 100 sec/100 mL balances bacteria separation performance against pressure loss in laminated films.

Elastic filter medium transitions between slack and ballooned states to dislodge solids without external mechanical actuation.

Direct covalent bonding of organometallic reagents to ceramic membranes prevents hydrolysis and leaching under harsh conditions.

Horizontal hydrophilic membranes in a pressurized container enable dispensing in any orientation, removing the need for specific positioning during use.

Thermal gradient across the permeable element drives helium diffusion while a buffer cushion absorbs thermal stress to prevent structural breakage.

Embedded particles in surface recesses block pinholes and cracks, maintaining stable gas separation performance under pressure fluctuations.

Bonding stacked membrane units to end caps eliminates the outer housing, reducing hold-up volume and sample loss in pharmaceutical applications.

Extracting a support fiber from a coating layer via gap creation eliminates residue and reduces processing time.

Transition metal doped polyimide precursors form defect-free carbon molecular sieve membranes.

Embedded electrodes in diagnostic spacer borders measure voltage drops across individual membrane pairs to detect assembly errors and blockages.

Cross-linked polybenzoxazole membranes maintain gas permeance during thermal conversion, eliminating costly pretreatment systems.

Low-temperature oxidation forms uniform water passage holes in graphene filters, preventing support breakage and contamination while boosting productivity.

A coalescing filter element uses a selective barrier to separate multi-phasic fluids by permitting outflow of the second phase while inhibiting the first.

Dual-layer seeding with varying temperature secondary growth produces hydrophobic MFI zeolite hollow fiber membranes.

Segmenting the single conductor into nested cylindrical membranes increases metal ion recovery efficiency from sources like seawater.

Preforming membranes on a three-dimensional mold eliminates material waste and labor-intensive bonding while maintaining watertightness.

A polyimide membrane removes bisphenol A from aqueous solutions via adsorption.

A recyclable electret filtering membrane uses water drop rolling and friction electrification to restore surface charge after dust accumulation.

Fluoride ions convert solid silicon dioxide into gas, eliminating clogs and extending membrane tube lifetime.

Chemical cross-linking creates polymeric membranes with high soft segment concentrations.

Pervaporation membranes extract water from reaction mixtures, bypassing energy-intensive distillation to lower costs.

Optimized filter membrane pore structure resolves the trade-off between high water flux and difficult bacterial recovery by retaining organisms on the surface.

Silicate-phosphate chemistry enables RO reject and FO extract reuse in evaporative cooling towers, eliminating mineral discharge.

A linear semi-crystalline vinylidene fluoride copolymer incorporates hydrophilic monomer units through controlled aqueous polymerization.

Colloidal antithrombotic solution circulates through oxygenator blood paths to deposit protective polymer layers on hollow fiber membranes.

Asymmetric polymer extrusion creates coiled hollow fibre membranes that minimize boundary layer thickness without high water velocities or aeration energy.

A fluorinated resin separation membrane incorporates a hydrophilic polymer layer to enhance permeability and chemical resistance.

Three-layer membrane composite mitigates foreign body giant cell formation to maintain encapsulated cell viability through enhanced vascularization.

A filter holder with integrated trough-shaped indentations on gripping arms securely clamps medical tubing.

Pulse width modulation controls the deionizing filter current to balance mineral retention against water waste, resolving RO membrane limitations.

Centrifugal separation and microfiltration remove bacteria from skim milk, preventing protein denaturation and preserving cheese flavor.

A combined forward and reverse osmosis desalination unit moves water through segmented stages to lower operating pressures.

A microporous membrane resolves the trade-off between shutdown temperature and mechanical strength by combining polyethylene with polypropylene.

Dynamic flux control adjusts permeate flow based on inflow to manage sudden transmembrane pressure spikes and reduce aeration costs.

Non-circulating buffer chambers with ion-permeable membranes eliminate complex fluid systems, reducing electrical current by 90% while preventing gas buildup.

Electrically conductive mesoporous carbon membrane modulates ion transport via applied voltage.

Microwave heating synthesizes supported molecular sieve membranes, eliminating temperature gradients that cause sedimentation and poor stability.

Applying independent spacers to membrane sheets using adhesive bonding.

Replacing heavy ceramic films, a composite electrolyte film with two-dimensional nanostructures blocks oxygen diffusion to reduce metal air cell weight.

Merging collecting lines into module end caps eliminates separate transverse pipes, reducing installation effort while maintaining compact vertical rows.

An anionic semipermeable membrane with adhered cationic compound attracts and retains PFAS contaminants from aqueous mass.

A membrane stack supplies fluid substantially in the plane of the membrane to minimize hydraulic resistance.

A carbon dioxide separation member uses a hydrophobic porous membrane coated with a cross-linked polymer compound layer containing alkali metal carriers.

Acetylacetone additives modify polyamide active layers in water treatment membranes to enhance flux properties during interfacial polymerization.

Surface oxidation of a siloxane resin layer combined with a protective coating prevents brittleness and defects, maintaining high gas permeation performance.

Degassing concentrate streams before recirculation eliminates microbiological hazards and membrane damage risks.

Nanofiltration concentrates ammonia feed to reduce steam consumption in the recovery stripper, lowering energy costs.

Beta-cyclodextrin acts as an intermediary to prevent protein aggregation and maintain stability during manufacturing and storage processes.

Segmented fiber orientations in a hollow fiber membrane module create tortuous flow paths that reduce pressure drop while maintaining high packing density.

External axial support structure prevents tubesheet cracking and leakage while increasing nitrogen-enriched air flow in compact air separation modules.