Membranes TRIZ Cases

Fluoroalkyl acrylate copolymer treatment resolves insufficient oil repellency in PTFE membranes against gasoline and diesel contaminants.

A biaxially-oriented stretching device controls micropore structure in polytetrafluoroethylene hollow fiber membranes.

Hydrophobic mesoporous membranes separate heated vapors via surface-enhanced adsorption and capillary condensation effects.

A modular filter device uses grout material to seal ceramic elements within a holding frame, enabling individual element replacement.

A porous scaffold support reinforces an ultra-thin PEBA film, resolving the trade-off between mechanical strength and high pervaporation performance.

A hybrid water treatment system combining nanofiltration with electrodeionization to produce fresh water from seaweed feed streams.

Embossed spacing features on spiral-wound membranes direct fluid flow through tortuous paths, reducing pressure drop and fouling caused by porous feed spacers.

A series filtration device combines polyfluorocarbon sieving and ion exchange to remove microgel, particles, and ions from chemical liquids.

Integrating activated carbon fibers into spiral wound filter cartridges eliminates separate pre-treatment units, reducing system size and cost.

Controlled boiling water shrinkage in a spunbonded nonwoven fabric resolves dimensional stability issues, preventing detachment during pressure fluctuations.

Sulfonated aromatic triazine polymers maintain dimensional stability and reduce gas permeability at elevated temperatures.

Shock electrodialysis removes cobalt and cesium ions via electric fields, bypassing energy-intensive reverse osmosis pressure requirements.

Segmented silicon nanomembranes separate EVs from biofluids while preserving integrity and bioactivity.

Segmented flow regulation cylinders with internal grooves reduce pressure drops and prevent membrane abrasion during high-flow cleaning operations.

A vacuum membrane distillation system uses a Venturi pump to extract volatile solutes from vapor channels.

Cross-linked POSS nanoparticles in a PEBA matrix resist plasticization and improve CO2 selectivity under high-pressure sour gas conditions.

Radial pyrolysis gas flow sweeps reactive off-gases from hollow fiber membranes, ensuring uniform carbon molecular sieve properties.

A dual-filter microfluidic device dissociates tissue aggregates into single cells, increasing yield by 3-fold while maintaining viability.

An integrated disposable bag system consolidates separate pipes and filters into a single unit, eliminating complex assembly and cleaning operations.

A polyether block polyamide composite membrane uses an amphoteric copolymer intermediate layer to boost gas permeation rates.

A bilayer polyamide membrane overlays a rigid aromatic base with a flexible aliphatic top layer to enhance salt rejection.

A dual-membrane cartridge removes gaseous carbon dioxide and bicarbonate from blood simultaneously using sweep gas and dialysate.

Metal salt complexes in hydrophilic polymer layers boost olefin permeance while preventing carrier loss.

Porous wall structures trap intermediate particles while allowing cell passage, resolving fouling resistance issues that limit process capacity.

A two-layer nanofiltration membrane with an amphiphilic copolymer resolves the selectivity-permeability trade-off in liquid filtration.

Segmented temperature control during microwave heating synthesizes dense inorganic films.

Non-square through holes in a metal oxide filter body increase nucleated cell collection rates by minimizing deformation and adhesion damage.

Masked spacer end portions prevent current bypass to achieve high current efficiency, reducing energy consumption in water purification systems.

A ring-shaped elastomeric seal forms an interference fit with a filter module outer periphery to create a fluid-tight barrier without adhesives.

Segmented lattice spacers provide discrete mechanical support for thin ceramic plates, resolving the trade-off between permeability and stability.

Normalizing pressure drop, flow rate, and salt removal enables accurate prediction of chemical cleaning times without costly instrumentation.

Heat-treated polytetrafluoroethylene membrane with controlled crystal heat of fusion ratio enables precise stretching for high needle penetration strength.

Block copolymer membrane captures unbound doxorubicin from venous blood to reduce systemic toxicity and enhance local tumor dosing.

Undercut-type protuberances anchor the membrane layer to prevent damage from high backwash pressures and viscous drag.

A carbonized sulfonated polyphenylene ether membrane achieves high carbon dioxide permeability and selectivity.

Antibacterial nanoparticles modify the support mesh to inhibit bacterial growth in nutrient-rich water without reducing water flux or salt rejection.

Removable steel disk stack and bellows seal reduce downtime and exposure to radioactive waste water.

Segmented heating zones eliminate mechanical stirring to resolve temperature variance in large-volume zeolite synthesis.

A hydroquinone-derived carbon membrane on a ceramic support separates hydrogen and carbon dioxide gases through molecular sieve mechanisms.

A responsive copolymer enables aqueous phase separation to form porous films, eliminating flammable organic solvents and reducing environmental impact.

An oil-wet membrane resolves formation permeability loss from water flooding by selectively separating oil and water in stable emulsions.

Cyclodextrin-crosslinked membranes control dew points and eliminate costly pretreatment systems by separating heavy hydrocarbons from natural gas streams.

A separation membrane element uses tapered fibrous rows to optimize channel area and reduce flow resistance.

A composite membrane integrates a hydrophobic porous layer with a high water content hydrogel surface.

Replacing expensive aryl fluorides with cheaper halides expands structural diversity while reducing production costs.

A chemical liquid purification apparatus integrates a filtration device into a tank body to enable continuous circulation and impurity removal.

An integrated permeate channel membrane withstands high backwash pressures up to 10 bar, resolving poor adhesion and limited module integrity.

Radiation grafting enriches ionic liquid on the membrane surface to resolve hydrophobicity and improve antifouling performance.