Plastic Recycling TRIZ Cases

Recycling fine particles from ground prepolymer eliminates material loss while achieving controlled particle size distribution for reliable coating.

A thermoplastic recycling process converts resin into lower molar mass polymers using localized heating and dissolution in base monomers.

Grinds cross-linked foams to specific particle sizes enabling direct melt mixing with thermoplastics, bypassing costly chemical recycling.

Thermal-mechanical densification reduces EPS volume by 70x, cutting logistics costs.

Zirconocene and hydrogenation catalysts produce ethylene/1-hexene copolymers with controlled molecular weight distributions.

A color masterbatch uses acid dyes and water-swellable components to enable plastic decolorization.

Dried PHBV flax fiber regranulate enables five reprocessing cycles, reducing manufacturing costs while maintaining material integrity.

Optical sorting isolates colored plastics from mixed waste streams, while a bypass stream prevents bleeding during decoloring.

A method degrades recycled superabsorbent polymer into polyacrylic acid for repolymerization into new absorbent materials.

Dissolving cyclic olefin resin in a selective solvent separates it from composite materials, eliminating the need for high-temperature melting equipment.

A heat transport unit transfers thermal energy from heated plastic recyclate to new granulate.

Multi-stage screw extruders process waste rubber powder with softeners to achieve uniform devulcanization through controlled shear and temperature.

A segmented mixing process incorporates crumb rubber into diene elastomers to enhance fatigue and abrasion resistance.

Copolymerized polyester resin sets crystallization temperature between 70 and 130 degrees Celsius to prevent clumping during regeneration.

Melamine polyphosphate additives enable UL94 V-0 ratings at sub-1.5 mm thicknesses without compromising mechanical stiffness.

Replacing divinyl agents with diacylhydrazine allows sodium polyacrylate to decompose via oxidation, reducing waste volume and disposal costs.

A rubber crumb production process uses supercritical fluid suspension and isenthalpic expansion to achieve fine particle fragmentation.

Vaporizing liquid nitrogen expands inside concrete pores to break the structure while avoiding damage to embedded reinforcing bars and pipes.

A styrene-grafted polypropylene compatibilizer blends with recycled materials to enhance tensile modulus and impact strength.

Large recycled polyolefin particles replace SBR rubber, eliminating carcinogenic emissions and microplastic pollution while ensuring biomechanical protection.

Char accelerators adsorb chlorine from pyrolysis oil, preventing equipment corrosion and hydrotreating issues.

A two-step chemical process converts unsorted polyurethane waste into high-quality isocyanate-reactive polyols.

Screening extracts large polymer fragments before flotation, removing density adjustment requirements and reducing cleaning complexity.

In-situ titanium catalyst complex modifies recycled polyethylene terephthalate resins through controlled melt polycondensation.

Shredded waste textiles undergo sequential alkali and acid treatments to recover high-purity cellulose pulp.

Decoupling grinding from screening via buffer storage and recirculation maintains optimal rates while removing fibers for higher purity.

Replacing d-limonene with 1,3-dioxolane or isoamyl acetate enables low-temperature evaporation at 20-70°C, resolving stability and odor issues.

Turpentine liquid devulcanizes vulcanized rubber at atmospheric pressure, avoiding high-pressure vessels and toxic reagents.

Aminolysis chemically degrades cross-linked benzoxazine resins, separating reinforcing fibers from the matrix for high-quality material recovery.

Selective compartment perforation prevents cross-contamination during recycling, enabling safe recombination of incompatible ingredients.

A prewashing apparatus for comminuted plastic parts uses a water-filled separation chamber to remove heavy contaminants via sedimentation.

Blending post-consumer recyclate polyolefins with carbon black and copolymers improves volume resistivity while maintaining impact strength.

Dithiophosphoryl polysulfides break sulfur bridges in vulcanized rubber at lower temperatures, reducing polymer chain degradation and rolling resistance.

Shred spent coffee capsules with a coupling agent to bypass complex separation processes and yield recycled plastic with reliable mechanical properties.

Isophoronediamine-based amorphous polyamide resin reduces weight change percentage to maintain appearance integrity in high humidity environments.

Ionizing radiation reduces high molecular weight PTFE chains to lower viscosity grades.

Aluminum catalyst polycondensation reduces coloration in recycled polyester.

A mixing tank disperses pulverized waste fiber-reinforced plastic in water with a filler and fixing agent to form a recyclable composite sheet.

Catalytic melt filtration converts unsorted polyolefins into short-chain hydrocarbons, bypassing complex separation steps to boost yield.

Gamma-valerolactone dissolves polyester from mixed polymer blends, removing fillers and colorants to recover high-purity material without mechanical processing.

A pressurized solvent system dissolves reclaimed polyethylene to separate suspended contaminants from the polymer matrix.

Atmospheric pressure operation eliminates high-pressure equipment needs while enabling continuous processing and efficient solvent recovery.

Split-phase glycolysis recovers high-quality polyhydric alcohol from urethane waste, eliminating toxic by-products and dark color.

Blending post-consumer recycled resin with specific virgin bimodal polyethylene maintains mechanical toughness and stiffness despite PCR variability.

Continuous processing of recycled PET resin with impact modifiers eliminates energy waste from segmented heating cycles while boosting mechanical performance.

Agitators remove dirt from plastic particles in a dosing container to prevent bridging and maintain uniform separation yield.