Plastic Recycling TRIZ Cases

A vitrimerization mixture and heat above Tg turn partially crosslinked prepreg scraps into reshaped composites without devaluing properties.

Free ligands in solvent selectively break metal-ion crosslinks in complex polymers, enabling rubber recycling without damaging strength.

Short fiber grinding and thermosetting adhesive improve recycled board surface texture, fiber blending, and heat resistance.

Conductive nano reinforcements are recovered without structural damage, enabling reusable composites with strong mechanical and shielding performance.

Vacuum lock feeding and staged extrusion remove moisture before and during melting, preserving polycondensate viscosity with shorter residence time.

A strong base plus quaternary ammonium salt enables lower-temperature polyurethane hydrolysis with high-yield recovery of reusable polyether polyols and polyamines.

Opposing perforated supports hold fibers in a common plane during composite dissolution, preventing blockages and preserving reusable fiber.

Ionizing radiation breaks down persistent C4-C20 hydrophilic compounds, including fluorinated acids, while reducing odor with controlled dose exposure.

Encapsulating powder modifiers in depolymerized polymer granules improves dispersion and stability while reducing handling hazards and blending cost.

Vinylsilane devulcanization opens sulfur bridges while limiting C-C bond damage, helping recycled rubber retain tensile strain in new mixtures.

Solvent-based separation exploits solubility differences to recover flame retardants from styrenic polymer waste and remove harmful substances.

Cleaning, peeling, and rotor mixing remove tire impurities before de-vulcanisation, improving reusable rubber quality with less energy and space.

A two-stage pyrolysis and solvolysis route removes epoxy resin while preserving long, high-quality carbon fibres for reuse.

A cyclic amide and protic ionic liquid dissolve cellulose from textile feedstocks while enabling polyester separation with safer, lower-energy processing.

Acid deactivation, oxidant treatment, and drying remove impurities from used superabsorbent polymer to restore uniform absorption performance.

A graft and block copolymer blend helps mixed recycled ABS maintain impact strength and flowability for electronics and automotive parts.

Covalently bound metal-binding groups boost radical contact, enabling polymer fragmentation in liquid media without major stability loss during use.

Controlled silicon and oligomer removal in recycled polyamide reduces melt-spinning clogging and improves airbag fabric shrinkage uniformity.

Pulverized urethane composites mixed with thermoplastic resin enable lower-cost recycling, retained rigidity, and reuse without large-scale equipment.

Mechanical shredding, shear fusion, melting, and mesh filtration turn mixed waste textiles into stronger processed material with lower energy use.

Heating and cleaning additives soften inks and hot-melt adhesives before disc-refiner abrasion removes residues from plastic waste.

Blending recycled polyethylene with two virgin HDPE components improves ESCR and strain at break for cable jacketing use.

Using THF or methyl THF with potassium carbonate suppresses ethylbenzene during waste polystyrene depolymerization, improving styrene recovery.

Residual rubber powder is compressed into usable pellets, then cooled below critical temperature to prevent self-combustion and improve handling.

Phenol end-capping, adsorption, and non-solvent precipitation recycle mixed polycarbonate waste while preserving purity, stability, and color.

Ceramic-lined ball milling prevents heavy metal contamination during plant grinding, improving natural rubber quality and aging resistance.

Controlled heat treatment raises oriented polyester film crystallinity so shrink labels can be recycled together with PET bottles.

A recycled and virgin polyethylene blend delivers cable jacketing with over 1000-hour ESCR and improved tensile strain at break.

A staged dissolution, filtration, sorptive separation, and extraction process removes contaminants while reducing fouling in reclaimed polymers.

Sensor-guided two-stage compounding corrects degraded recycled plastics to deliver more consistent material properties for quality parts.

Microneedle microperforation lets washing solutions reach trapped interlaminar inks and adhesives, improving laminated plastic recycling.

An obtuse peeling edge and optional cleaning liquid remove coating films continuously without high tension, damage, or redeposition.

Ground waste, virgin polymer, and compatibilizers enable solvent-free recycling of polyamide-polyurethane blends with higher reuse and better properties.

Solvolysis breaks down waste automotive carpet with fillers and adhesives into terephthalyl, glycol, and useful coproduct streams.

Heating plastic with hydrocarbons and inerting agents cuts halogen below 0.5%, preventing corrosive halides in downstream refining.

Piezoelectric acoustic horns and co-rotating lobes break down vulcanized rubber particles, enabling delamination and sulfur bridge reformation.

Short fibers and a thermosetting adhesive create recycled board with smoother texture, matte finish, and stronger fiber bonding.

Vacuum-controlled degassing in PVB extrusion removes plasticisers based on melt flow index feedback, yielding more consistent recycled polymer.

A catalyst-driven vitrimerization route recycles crosslinked spectacle lens thermosets while preserving low haze, low yellowness, and lens-grade optics.

High-boiling swelling agents and moderate heating with oxygen break sulfur crosslinks while preserving rubber chains for higher-value recycling.

Silane coupling agents bond silicone impurities into polyamide resin, reducing mold fouling and molded-part detachment during recycling.

Acidic thermal digestion converts end-of-life silicones into acetoxy siloxanes, improving recycled product quality without complex water separation.

High-speed projection against removable impact stops grinds mixed fragile and plastic materials to about 1 mm with low wear and energy use.

Acidolysis breaks down polyurethane into reusable raw materials, then acetoacetylated polyol converts degradation compounds into recoverable polyols.

Densified recycled polystyrene is blended into resin concrete to control shrinkage and expansion in high-strength utility vaults and trenches.