Plastic Recycling TRIZ Cases

Heterophasic polypropylene compatibilizers resolve phase incompatibility in recycled PP-PE blends, achieving high stiffness and impact strength.

Sound energy agitates solvent in a container to strip resin from cut-off waste fibers, recovering reusable material.

Mid-infrared spectroscopy with chemometric calibration identifies conventional, high resilience, and viscoelastic foam types for accurate chemical recycling.

Controlling molecular weight and hydroxyl number of recycled polyol maintains foam quality despite high recycled content.

A thermoset precursor composition uses imine bonds to form cross-links with epoxy groups, enabling material recycling through solvent dissolution.

Optimizes crystalline and soluble fractions in recycled polypropylene to achieve high gloss while minimizing black spot contamination.

Dry anaerobic fermentation extracts rubber from plant material using minimal water, avoiding the high consumption of wet methods.

Molten Lewis bases depolymerize fiber reinforced polymers, recovering high-quality carbon fibers without the mechanical damage caused by grinding.

Melt-mixing recycled polypropylene with heterophasic copolymers balances impact strength and tiger stripe aesthetic quality.

Heated water baths re-crystallize PET to overcome high melting points, while centrifuges remove moisture for quality extrusion.

Temperature-controlled dissolution of polyolefins in n-alkanes recovers defined molecular weight fractions without high-pressure equipment.

Polycarbonate and polyethylene terephthalate blend excludes isophthalic acid to boost Vicat softening point.

Thermal contraction of copolymerized polyester film separates inks and films during regeneration, preventing chip clumping and discoloration.

Acid treatment of ultra high molecular weight polyethylene reduces metal contaminants by 50% to eliminate discoloration for medical packaging.

Depolymerized wax additives improve polymer melt flow index while reducing extruder backpressure and equipment wear.

Nanofiltration and evaporation recover sulfopolyester from wash water, reducing waste disposal costs.

Cooling water circulation absorbs friction heat during hammer rotor rotation, maintaining chamber temperature below the resin melting point.

Dissolving polymers in solvent leaves carbon black residue, avoiding centrifuge costs.

Compatibilizer bridges immiscible recycled phases to close the mechanical property gap with virgin polyolefins while maintaining high waste reduction.

Pre-heated particles adhere to PVC contaminants at elevated temperatures, eliminating belt cleaning downtime and improving separation accuracy.

Saturating fibers with low-viscosity monomer solves incomplete wetting issues, while recovering offcut waste reduces material loss in composite production.

Polyester polyol compositions combine digested thermoplastic polyester with castor oil to reduce petrochemical reliance while maintaining foam resilience.

Flash tube drying and cyclone separation handle low bulk density fibers while maintaining mechanical strength through continuous compaction and mixing.

Phosphorous oxoacid breaks down polyurethane foam inside tires, resolving the contradiction between tread durability and end-of-life wheel separation.

A PVC resin recycling method uses acid immersion to dissolve lead stabilizers from pulverized material.

Depolymerizing recycled PET with monoethylene glycol and neopentyl glycol enables food-grade material without high-cost plant complexity.

A titanium-antimony catalyst system produces crystallizable polyesters with improved color and reaction rates.

Depolymerized plastic wax reduces mixing time and greenhouse gas emissions during asphalt processing.

Precise control of polyamide and thermoplastic resin ratios in melt-kneaded waste maintains tensile strength and impact resistance despite impurities.

Fatty oil extraction removes harmful plasticizers from shredded PVC waste, resolving regulatory compliance issues while maintaining economic viability.

A master batch blends thermoplastic resin and recycled carbon fibers to simplify regeneration.

Titanium oxide pigment content in recycled PET resin suppresses color variation between raw material lots while maintaining high brightness.

A plasticizer composition blends recycled phthalate with cyclohexane dicarboxylate and citrate compounds to achieve fast gelling and low migration.

Alternating aqueous densities separate synthetic organic materials, eliminating contaminants to achieve 99% purity.

Solvent-based purification removes cellulose impurities from Taraxacum kok-saghyz roots to yield high-purity rubber with improved mechanical properties.

A polyesterol blend reduces smoke gas formation in rigid polyurethane foams.

A nozzle feeds melted regenerated polymeric material directly from a recycling device to a compression mould.

Enzymatic hydrolysis recovers high-quality PLA monomers from mixed polymer waste without thermal degradation.

A supercritical fluid combination medium separates organic matters by suspending components above a cosolvent and introducing the fluid.

Mechanical extrusion combines shredded PET with ground carbon fiber reinforced polymer to produce composite filaments.

A polycarbonate resin composition utilizes a phosphazene compound to enhance flame retardancy while maintaining mechanical integrity.

A detection method uses spectrophotometers and thermogravimetric analyzers to verify recycled plastic content.

Heating thermoplastic surfaces melts them to bond thermoset particles, enabling economically viable recycling of fiber reinforced plastics.

An asymmetric connection opening between a comminution unit and an extruder reduces wall thickness to minimize plastic material accumulation.

Alkali thermal carbonization of waste tires produces high-quality graphene, avoiding hazardous reagents and reducing resource consumption.

Adding polyethylene naphthalate compensates for tensile strength loss when blending high polytrimethylene terephthalate levels into polyethylene terephthalate.

A titanium catalyst complex formed with phosphorus compounds drives transesterification of recycled polyethylene terephthalate.

Controlled alkaline washing extracts aluminum contaminants from metalized PET film, enabling solid state polymerization to restore intrinsic viscosity.