Semi-Permeable Membranes TRIZ Cases

Mixing metal salts with activated carbon before molding ensures uniform distribution, reducing leach rates.

Controlled pore distribution in porous glass filters separates minute substances, reducing analysis costs and enabling direct optical observation.

Hydrophilic regions guide reagent layers to stabilize electrode contact, eliminating sensitivity variations caused by positional deviations.

Tension baking of a polymer film produces a smooth graphite membrane, resolving the trade-off between thin thickness and mechanical strength.

A gas-permeable tube removes dissolved gases through diffusion driven by liquid flow pressure.

A fluorinated copolymer ion exchange membrane suppresses impurity deposition through controlled molecular weight distribution.

A multi-part polyurethane adhesive formulation combines specific polyols and desiccants to bond hollow fibers effectively.

A silicon cell mechanoporation filter withstands high pressure and flow rates without clogging or breaking.

A liquid degasser employs a gas permeable membrane to extract dissolved gases from propellant, preventing flow stalls and maintaining control.

Inclined surfaces on threaded members seal fluid channels, preventing leaks and contamination without additional packing components.

A hollow fiber membrane module dissolves adjustment gas into ultrapure water while a control valve distributes liquid flow between the module and a bypass pipe.

UV-moisture curing agents seal hollow fiber membrane leaks instantly, eliminating time-consuming drying steps while maintaining hydrophilic properties.

Controlled pore filtration removes haze-causing wax particles from base stocks, preventing filter clogging and maintaining clarity.

MRI and impedance measurements determine membrane permeability without disrupting sample integrity, preserving functionality.

Notched side walls and tabs constrain the displaceable member, preventing particulate contaminants from jamming the valve during operation.

Multi-stage membrane system separates pressurized feed gas into permeate and nonpermeate streams without recompressing intermediate permeates.

Chilled lean solvent contactors reduce amine circulation by slowing carbon dioxide reactions while maintaining hydrogen sulfide removal efficiency.

Self-assembled charged nanohybrids in biodegradable polylactic acid membranes enhance water flux and nutrient removal efficiency for wastewater treatment.

Gas-permeable pre-filters and liquid-impermeable elements prevent lubricant ingress into central tyre inflation systems.

A nitrocellulose membrane features a polymeric hydrophilic coating bonded via electron beam irradiation to minimize non-specific binding.

Selective membranes remove hydrogen from trifluoroethylene, eliminating ethanol solvent absorption and reducing environmental impact.

Hydrophilic-hydrophobic block copolymers resist chlorinated solution degradation while maintaining permeability and selectivity.

Polymeric membrane cleaning using oxidizing and reducing agents to form an acidic mixed solution.

A tubesheet design embeds hollow fiber membranes within a potting block featuring a penetrating extension that provides internal strain relief.

A polyarylene ether copolymer combines biobased sulfone blocks with hydrophilic polyalkylene oxide segments to form advanced membranes.

Allyl functionalization lowers rearrangement temperatures, preventing polymer degradation and improving membrane selectivity.

Neutral organic radicals form a protective passivation layer on silicon germanium surfaces during semiconductor processing.

A paper substrate coated with an ink receptive layer containing inorganic pigments and water-soluble metallic salts.

PCR-amplified dendrimer-DNA conjugates quantify membrane retention levels and pore structures beyond gold particle detection limits.

Differential roll shear ruptures closed cells in crosslinked polyolefin foamed sheets, resolving hard non-foamed layers and poor vacuum moldability.

Ultrasonic cleaning and thermal drying produce particle-free filter cloths that maintain sterility while reducing waste through reusable tub systems.

Replacing chromatography, nanofiltration purifies oligonucleotide synthons via a 400 Da polyimide membrane to resolve scale-up time constraints.

Incorporating isosorbide into polyarylene ether ketone backbones resolves the trade-off between thermal stability and bio-compatibility.

A monolithic separation membrane structure featuring filtration cells with specific inner diameters and partition wall thicknesses to reduce overall weight.

In-situ synthesis of ion exchange particles within a fluorinated polymer matrix using maleic anhydride copolymers.

Ethylene vinyl alcohol copolymer layers resist HFO diffusion while allowing CO2 permeation, maintaining thermal insulation stability in pipes.

A 6FDA-based co-polyimide membrane separates CO2 and H2S from methane using size selectivity and solubility differences in the polymer matrix.

Replacing energy-intensive amine absorption, the membrane utilizes composite polymer chemistry to enhance acid gas removal efficiency.

Unitary molding integrates the handle into the end cap, eliminating mold split parting lines that compromise structural integrity and aesthetics.

Heating elements burn accumulated fuel from polyimide hollow fibers, restoring air separation performance and extending operational life.

Capillary force imbalances in a tapered channel transport fluid between chips, eliminating tubing and reducing dead volume.

Perfluorodioxolane copolymer membranes resolve the selectivity-flux trade-off by achieving high H2/CH4 and CO2/CH4 separation performance.

Activator complexes generate oxygen gas at low temperatures to break down tenacious soils, reducing energy and water consumption.

A chemical release system uses a time-release pouch to mix citric acid and polyphosphates with potable water.

An embedded vibration management system shifts natural resonance frequencies above excitation sources, protecting integrated circuits from physical damage.

Segmented layers enable large-scale surface processing while maintaining hydrodynamic flow confinement and reducing reagent waste.

Retarding mask structures guide anisotropic etching in silicon substrates, resolving the trade-off between manufacturing precision and process complexity.

A bipolar ion exchange sheet uses metal hydroxide nanoparticles to enhance ion adsorption and desorption characteristics.

Segmented polytetrafluoroethylene layers resolve the waterproofness versus sound transmittance trade-off by assigning specialized pore sizes to each layer.