Membranes TRIZ Cases

See how crosslinked polyimide composition with dry phase inversion enables separation membranes

See how a membrane guide divides potting material into density regions to prevent thermal gaps

A three-layer cellulose nanofiber membrane boosts water flux while maintaining rejection ratios through graded fiber and pore structure.

Stacked porous metal membrane cassettes cut vacuum pressure drop while enabling dual-stream mass transfer, filtration, and selective separation.

Radiation grafting in aqueous alcohol helps ester polymer substrates resist radicals and retain blood compatibility after sterilization and storage.

A triazine-crosslinked fluorinated ionomer composite boosts membrane strength, air tightness, and conductivity for durable fuel cells.

A hydrophilic-treated hydrophobic membrane with a graphene oxide layer blocks volatile contaminants while still passing water vapor.

Vapor-permeable membrane channels dry and cool gas with hygroscopic solution flow while keeping the unit compact and modular.

Thin edge zones and layer-free margins suppress shrinkage-driven curling in separation membranes, improving production stability.

A high-melting azine dye keeps porous PTFE black after heat exposure while preserving gas flow, waterproofing, and dust blocking.

A coiled duct uses centrifugal separation by molecular weight to continuously remove CO2 with lower power and no chemical consumables.

Heat- or light-activated nitrene precursors create durable covalent surface functions on polymers and textiles without damaging the substrate.

Separate alginate and divalent-ion coatings form a crosslinked membrane on a film carrier for fast, lower-cost production with thickness control.

A monofilament open-weave braid on a scalloped PVA core avoids whiskering and improves peel strength, durability, and permeate efficiency.

Inside-out flow in a hollow-fibre drinking straw lets air escape through hydrophilic membranes, sustaining water flow and enabling backwashing.

A three-layer nanofiber membrane balances small pore filtration, high water flux, and fouling resistance for water purification.

Vacuum monomer deposition forms hydrophobic and oleophobic coatings on porous or sensitive substrates while preserving porosity and avoiding plasma or radiation damage.

Cationic polyelectrolytes immobilized on textiles boost chromate adsorption from wastewater while preserving permeability across acidic to neutral pH.

Ionizing-radiation grafting with 4-acryloylmorpholine makes fluoroplastic surfaces more wettable while maintaining or improving liquid flux.

Ionizing radiation grafts 4-acryloylmorpholine onto fluoroplastic surfaces to improve wettability while maintaining liquid flux.

Radiation grafting in aqueous alcohol helps ester polymers resist radical damage and keep blood compatibility after sterilization and storage.

A sealing member between the housing and potting portion absorbs thermal strain mismatch to prevent gas leaks across extreme temperatures.

A blended sPEEK and cellulose acetate coating lets ERV membranes pass water vapor while blocking air and reducing contaminant crossover.

Cool deionized solvent and hydraulic pressure improve extraction yield while preserving volatile aromatics and flavor quality.

A composite electrospun nanofiber mat balances pore size, porosity, and wettability to separate oil-water mixtures with high flux and longer filter life.

Stacked porous metal membrane cassettes enable dual-stream vapor or liquid separation with high surface area and low pressure drop.

Varying particle sizes nest to limit solvent channeling in extraction columns, improving extraction uniformity and extract concentration.

Thinner edge sections and exposed substrate zones reduce shrinkage-driven curling, enabling stable production of separation membranes.

A grafted nonwoven substrate replaces slow chromatography with selective, low-pressure removal of host cell proteins, DNA, and viruses.

Water vapor permeable membranes remove humidity without cooling air to condensation temperature, cutting HVAC energy use and enabling liquid recovery.

A two-layer hollow-fiber membrane uses a thin dense layer and graded support voids to pass water vapor while limiting air leakage.

Edge sealant closes membrane flow spaces and supports the stack, preventing air leakage while simplifying fuel cell humidifier assembly.

Triazine-ring crosslinking in a fluorinated ionomer composite boosts membrane strength, air tightness, and conductivity for fuel cells.