Semi-Permeable Membranes TRIZ Cases

A filtration filter device uses a removable tubular member to hold the filter and enable direct observation of captured objects.

Ammonium salt treatment modifies reverse osmosis membrane surface charge to increase water permeability while maintaining high salt rejection rates.

Stackable filtration cassette modules allow variable area ratios between coarse and fine filters, resolving clogging risks from fixed 1:1 designs.

Single-walled carbon nanotubes accept electrons from titanium dioxide to reduce charge recombination and improve phenol degradation.

Perfluoroalkyl sulfonate salts in thermoplastic polycarbonate compositions suppress combustion to meet V0 ratings without bromine or chlorine.

A monolithic substrate with a porous membrane condenses water vapor from engine exhaust gas, reducing heat release and maintaining uniform temperature.

Carboxylic grafted fluoropolymer improves fiber adhesion and distribution, resolving incompatibility between sizings and the matrix to boost tensile strength.

Segmented plates and local quality spacing prevent particle jamming while maintaining low leakage in the microvalve.

Segmenting the port into a removable cap and fixed septum eliminates death cavities that retain antibiotics, preventing false negative sterility test results.

Steric crowding around benzimidazolium and imidazolium cations prevents hydroxide degradation, resolving alkaline instability in quaternary ammonium membranes.

H2-permeable membrane transports hydrogen from methane conversion volume to sweep gas stream, shifting reaction equilibrium to boost C2 hydrocarbon yield.

A composite separator uses a multi-phase polymer coating on a heat-resistant nonwoven fabric to enhance structural integrity at elevated temperatures.

A porous fluoropolymer flow sleeve selectively impedes undesirable fluid components through controlled surface energy and pore size.

Embedding chelated metals in anodic aluminum oxide films provides controlled fluorescence enhancement without toxic noble metals.

Atomically thin layers form pores by growing on substrate islands or selective etching to create high-flux membranes.

Graded fiber diameters in layered PTFE membranes resist oil mist clogging to reduce pressure drop.

Block copolymers self-align into vertical nanostructures to reduce ionic resistance and enhance rate capability in lithium ion batteries.

Segmented catalyst loading on the honeycomb filter manages thermal gradients, preventing cracks and raising regeneration limits.

Co-precipitation of magnesium and lithium aluminum layered double hydroxides from brine reduces lithium loss while producing high-value functional materials.

Physical vapor deposition creates a columnar nanoporous membrane, eliminating complex etching steps and lowering process costs.

Optimized coalescer media removes small water droplets from fuels while preventing media plugging by solids.

Chemotactic polymersomes overcome diffusion limits by using self-diffusiophoresis to actively reach target tissues.

Pre-loading carrier gas with volatile components compensates for Raoult's Law evaporation shifts, ensuring safe and precise delivery of hazardous process gases.

Intermediate density binary fluid separates lost circulation materials and weighting agents from drill cuttings, reducing logistical costs in remote operations.

An AA-AMPS copolymer scale inhibitor prevents calcium carbonate deposition in iron-rich water, reducing operational costs.

Oil system scavenge pump provides first stage vacuum for fuel stabilization unit discharge.

Alkaline washing, water flushing, and purified acrylic acid contact remove metal oxides from filters to prevent product color deterioration.

Reducing secondary side pressure while supplying heated cleaning medium accelerates fouling removal, shortening operation time for ceramic filters.

A perovskite oxide surface layer of oxidizable metal cations reduces oxygen vacancy concentration to stabilize surface chemistry.

Rotating the spindle creates active hydraulic flushing that reduces residence time and chemical volume while preventing abrasion.

Dual-layer hydrophilic and hydrophobic membranes prevent liquid trapping and backpressure in bio-reactive containers.

Internal obstacles in a monolithic filtration element create turbulence and shear forces that prevent particle adsorption and pore blocking.

Aliphatic substituted epoxides in the polyether epoxy resin maintain physical integrity and separation selectivity during ethanol exposure.

An electrodialysis system with sequential anion exchange membranes removes iodine ions from marine natural product extracts.

A vesicle incorporating transmembrane protein maintains water permeability through stable self-assembled structures.

Antibody-coated hollow glass microspheres isolate cells without specialized equipment, preserving viability in resource-limited settings.

Low-pH polyacid adsorption on porous membranes resolves separation time and pressure drop trade-offs in large-scale protein purification.

A biodegradable scaffold fabrication method uses supercritical fluid foaming and porogen leaching to create highly porous structures.

3D printing extrudes an inorganic composition to build a complex monolithic support, eliminating cumbersome multi-step sintering processes.

Replacing trifluoromethyl ethylene with 2,3,3,3-tetrafluoropropene eliminates haziness while maintaining corrosion resistance.

Buried piezoresistive devices in silicon support beams measure fluid-induced strain, eliminating bulky external transducers.

Replacing thermal distillation with nanofiltration membranes reduces energy consumption while separating lignin and monomeric sugars from organosolv liquor.

A sulfonated poly(aryl ether) membrane blend incorporating phenyl amine compounds to enhance fluid flow through the separation matrix.

A carbon dioxide capture system uses reactor steam to regenerate adsorbents and produce synthetic fuels.

Segmented sulfonated block copolymers direct sulfonation to interior blocks, maintaining wet strength exceeding 100 psi while improving water transport.

Replacing heavy heating equipment with a vacuum-operated membrane dryer reduces system weight while maintaining effective dehumidification.

Segmented membrane envelope fabrication for spiral wound filtration modules.

Grafted fluoropolymer membranes use pendant side chains to enhance surface hydrophilicity.

Zeolite molecular sieves decompose harmful gases and particles, eliminating filter clogging and reducing maintenance needs.

Segmented spacer teeth define discrete fluid input ports to resolve uncontrolled loading and air bubble formation in side-loaded EWOD devices.