Plastic Recycling TRIZ Cases

A polyethylene resin evaluation method uses molecular weight and low molecular weight content to predict injection suitability.

Surfactant washing removes adhesive contaminants from shredded LLDPE film.

Segmentation and parameter control yield pure rubber granules from end-of-life tires, enabling effective devulcanization.

A solid carrier component combines high density polyethylene with bis-hydroxyl-functional polydiorganosiloxane to stabilize the fluid.

Surface devulcanization treats recycled rubber with thiol agents to enable bonding with fresh rubber, resolving poor adhesion and high recycling costs.

Subcritical water hydrolyzes fluorine-containing polymers while basic compounds neutralize hydrogen fluoride to prevent incinerator corrosion.

Immersion treatment with ethylene glycol increases polyester crystallinity, enabling fine particle production without complex equipment or harmful solvents.

Segmented roller bodies apply large central edges for reliable feeding and small lateral edges for high compaction quality.

Converting uncured prepreg scrap into continuous strips eliminates hazardous waste disposal while maximizing material utilization.

A separation system recovers high-purity plastic fractions from mixed waste using air classification and sink-float processes.

Density separation removes non-polyolefins while near-infrared spectroscopy distinguishes polyethylene from polypropylene, achieving high purity regranulate.

Inhomogeneous moisture profiles generate steam shock effects that heat rubber cores rapidly, reducing pressing cycle times.

Melt-mixing propylene copolymers with recycled fishery polyolefins creates expanded beads that reuse marine waste while maintaining moldability.

Machine learning controls additive dosing to reduce scrap rates by 75% in PET processing.

A water-based cleaning system removes oil contaminants from plastic clippings using skimming and centrifugal separation for liquid reuse.

Precise temperature and residence time control in the fluidized bed minimizes harmful aromatic byproducts while maximizing styrene monomer recovery.

A removal element valve passage adjusts cross-section via pressure gradients to control fluid flow during demolding.

A woven article uses spun yarn blending carbonized CFRP scrap staple fibers with thermoplastic resin to form a composite fabric structure.

A thermoplastic elastomer production process blends atactic polypropylene with polyethylene flakes and an isotactic copolymer.

C2-C3-C4 terpolymers bridge recycled polyethylene and polypropylene interfaces, achieving high impact strength without stiffness loss.

Depolymerizes PET scrap with 1,3-propanediol to form PTT copolymers, cutting energy use and landfill waste.

Segmented reactor converts waste plastic pyrolysis oil into high-value naphtha and kerosene using distinct hydrotreating and hydrocracking zones.

Solvent-based process separates polyolefin waxes from floor coverings to recover pure polymer components.

Non-polar solvent extracts polyolefins from waste at controlled conditions, avoiding high energy consumption of thermal degradation.

Varying cross-sectional stirring geometry generates dynamic compression cycles that remove contaminants from plastic chips without excessive chemical use.

Polar aprotic solvents dissolve polyvinylidene chloride from composites, preventing thermal degradation and cross-contamination during recycling.

Thermal cracking of polystyrene with polyolefins in a pyrolysis reactor at controlled temperatures to produce styrene monomers.

Dynamic sealing allows the suction element to adjust position along the chamber, preventing clogging from interference geometries and uneven flow fields.

Alcohol solvent dissolves polyamide at elevated temperature for mesh filtration separation from polyester, avoiding complex heating cycles and salt waste.

Adjustable rotating discs create friction for abrasive cleaning, reducing energy consumption and mechanical wear during impurity removal.

Encapsulating recycled fibrous mass particles within a thermoplastic binding matrix extends pallet lifespan while reducing landfill waste and deforestation.

A blade system crushes and mixes mixed plastic waste in a double-walled chamber.

Segmented vertical chambers process thermoplastics sequentially, resolving the contradiction between material homogeneity and compact device footprint.

Flotation exploits surface wettability to separate natural rubber from incompatible butyl rubber in ground tires, enabling high-purity regeneration.

Ethylene copolymer with hydrolysable silicon groups lowers melt flow rate of recycled polyethylene.

A composition blends ethylene-acrylic acid copolymer with post-consumer recycled resin to create a stable adhesive material.

A pulverizer adjusts the distance between stator and rotor surfaces to control particle size output.

Subcritical water melt kneading disperses cellulose fibers in polyethylene resin, reducing moisture absorption and improving mechanical homogeneity.

Screw extruder replaces static heating containers to reduce energy consumption and extend component lifetime during continuous PET depolymerization.

A multi-stage thermal degradation process converts halogenated waste plastics into valuable hydrocarbons and fuels.

Limiting rods and negative pressure adsorption prevent tire mold sliding caused by inertia, ensuring precise cleaning accuracy.

Extruding granulated waste plastic through a controlled die produces aggregates that restore compressive strength lost in standard plastic concrete mixes.

High-shear mixing and extrusion convert unseparated waste into consistent feedstock filaments without complex sorting equipment.

Recovers high-purity filler from carpet scraps via heating and screening to reduce virgin resource demand.

An adjustable nail unit with fixed needles changes the label-separation interval to accommodate varying bottle diameters and reduce mechanical damage.

Internal gas channels in comminution tools extract heat directly from the grinding zone, preventing material agglomeration during high-speed processing.

Sequential grinding and pneumatic separation eliminate residual polyester fibers, enabling 99.99% pure recycled plastic without chemical degradation.