Semi-Permeable Membranes TRIZ Cases

A honeycomb defect inspection device covers the outer peripheral wall with an elastic member to maintain internal pressure during detection medium flow.

Replacing fluorine-based resins with a cycloolefinic copolymer eliminates fish eyes defects and silicon migration stains in fuel cell laminates.

Adsorption filtration using molecular sieves removes vapor pollutants from aircraft intake air to protect onboard inerting systems.

Segregating acidic glucose from alkaline buffers prevents glucose degradation products while maintaining physiological pH levels.

Circumferential tape application resolves adhesion bottlenecks for long modules by matching roll width to module circumference.

A field flow fractionation unit uses a perpendicular injection channel to form a narrow sample line across the separation width.

A hemodiafiltration filter testing method generates transmembrane pressure using independent gas and liquid actuators to verify membrane integrity.

A fuel cell filter uses a gas-water separating membrane to block liquid fluid while discharging separated gas.

Alternating bends in the filter plate increase surface area to reduce pressure drop and flow resistance during nuclear cooling water filtration.

A 1.0 μm filter reduces sodium content in polymerization initiators to below 300 ppb.

Integrated filter limits eluting material to 3 mg per unit, reducing coating defects in photoresist films and improving semiconductor yield.

Hollow fiber membrane layer arranged in a square cylindrical housing with specific spacing constraints.

A composite filter media combines a spunbond substrate with an electro-blown nanofiber layer to achieve high particulate capture.

Pendant carboxylic acid groups in a composite polyamide membrane enhance salt rejection through electrostatic interactions while maintaining high flux rates.

A porous-polymer-modified metal carbon nanotube composite membrane achieves high separation efficiency for dye-containing wastewater.

An annular partition wall member blocks clearances between the housing and the ventilation member, preventing high-pressure water ingress into the enclosure.

Cerium oxide nanoparticles on amorphous carbon detect hydroxyl radicals at 0.006 mM, overcoming the insensitivity of conventional trapping methods.

Simultaneous stretching and leaching polymeric fibers resolves the trade-off between gas flux and selectivity, improving membrane efficiency.

Segmented compartments accumulate gas before release, enabling effective membrane washing and oxygen-free condition maintenance.

Polymer precipitation creates micro-channels in layered green bodies, boosting geometric surface area while controlling back pressure.

A unitary biochip integrates microfluidic and macrofluidic features for automated sample processing without operator intervention.

Vacuum application removes trapped gases from pores before liquid flushing, preventing re-introduction of impurities during filter conditioning.

An infrared-absorbing additive enhances layer adhesion in polycarbonate additive manufacturing.

Metal oxide protective layers block corrosive gases like H2S while maintaining hydrogen flux at elevated temperatures.

Carbonate treatment modifies cellulose filters to lower beta-glucan leachables below regulatory thresholds for biopharmaceutical safety.

Linear fluorocarbon agents coat ultra-high molecular weight polyethylene films to impart oil repellency without significantly reducing air permeability.

A composite hollow fiber membrane integrates a woven braid reinforcement layer to enhance mechanical strength and filtration accuracy.

A membrane selectively permeates hydrogen to retain trifluoroethylene purity.

Short side chain fluorinated ionomers resist swelling and fragmentation in hydroalcoholic solutions, resolving reliability versus composition stability.

A facilitated CO2 transport membrane uses a hydrophilic polymer gel containing a CO2 hydration catalyst to accelerate gas separation.

A blood processing filter uses a flow path securing sheet to maintain structural integrity between the inlet and outlet containers.

Segmented catalyst particles within a fibrillated polymer matrix resolve handling difficulties and transfer losses while maintaining high catalytic activity.

Atomic layer deposition applies alumina to metal surfaces, preventing dialuminum hexachloride vapor reactions that cause contamination.

Laminating a porous fluororesin membrane with a blended nonwoven fabric reduces pressure drop by minimizing bonding portions at the interface.

Vertical shaft pistons reduce device volume and weight while maintaining reliable liquid distribution for domestic water treatment.

Pressure-based detection identifies hollow fiber clogging, preventing unnecessary component replacement and reducing maintenance waste.

Ethoxylated butyne-1,2-diols extend printhead lifetime by 2.5 times against dye-based ink corrosion.

A non-selective hydration fluid humidifies the permeate side of a facilitated-transport membrane to boost gas separation throughput.

Additive manufacturing creates monolithic inorganic supports with non-rectilinear channels, eliminating cumbersome multi-step sintering processes.

Centrifugation with wash solution removes white blood cell contamination to produce pure transfusable red blood cells.

A leukocyte removal filter uses anisotropic permeation to trap cells while maintaining fluid flow.

A polyamide thin film composite reverse osmosis membrane uses a post-treatment with polyfunctional tertiary alcohol amine to enhance water permeability.

A two-step electron beam and UV process modifies hydrophobic polymer surfaces to create durable hydrophilic porous substrates.

A venting unit combines a semi-permeable membrane and a filter element to manage fluid flow through a machinery space opening.

Sealed microfluidic chips with high-density vias prevent capillary wicking during wet processing.

A protonic ionic liquid membrane maintains stable ionic conductivity across varying humidity levels.

Selective membrane dilutes formation water via osmosis, preventing ionic scale formation and pore blockage during secondary oil recovery.

A hybrid water and power system converts waste heat from electricity generation into thermal energy for nonpotable water purification.

Ion exchange medium concentrates TB-LAM in a pre-concentrator unit, resolving low sensitivity and false positives in rapid point-of-care diagnostics.

A fixed bed membrane reactor employs pervaporation to remove water during esterification.