Plastic recycling

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Plastic recycling is the process of recovering scrap or waste plastic and reprocessing the material into useful products.wikipedia
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Plastic

plasticsadditivesadditive
Plastic recycling is the process of recovering scrap or waste plastic and reprocessing the material into useful products.
Toward the end of the century, one approach to this problem was met with wide efforts toward recycling.

Plastic pollution

plastic wasteplasticplastics
Plastic recycling is the process of recovering scrap or waste plastic and reprocessing the material into useful products. Since the vast majority of plastic is non-biodegradable, recycling is a part of global efforts to reduce plastic in the waste stream, especially the approximately 8 million metric tonnes of waste plastic that enters the Earth's ocean every year.
In some areas there have been significant efforts to reduce the prominence of free range plastic pollution, through reducing plastic consumption, litter cleanup, and promoting plastic recycling.

Recyclebot

RecycleBots
For some waste plastics, technical devices called recyclebots enable a form of distributed recycling.
A recyclebot (or RecycleBot) is an open-source hardware device for converting waste plastic into filament for open-source 3D printers like the RepRap.

Recycling

recycledrecyclerecyclable
Since the vast majority of plastic is non-biodegradable, recycling is a part of global efforts to reduce plastic in the waste stream, especially the approximately 8 million metric tonnes of waste plastic that enters the Earth's ocean every year.

Transesterification

methanolysistransesterifiedtrans-esterification
In 2019, Eastman Chemical Company announced initiatives of methanolysis and syngas designed to handle a greater variety of used material.
This process has been used to recycle polyesters into individual monomers (see plastic recycling).

Society of the Plastics Industry

Society of the Plastics Industry, Inc.SPI
In the past, plastic reclaimers used the resin identification code (RIC), a method of categorization of polymer types, which was developed by the Society of the Plastics Industry in 1988.
This system was introduced to make separation of the many similar-appearing plastic resin types easier for plastic recycling centers across the country.

Polyethylene terephthalate

DacronPETTerylene
Polyethylene terephthalate, commonly referred to as PET, for instance, has a resin code of 1.

Railroad tie

sleeperstiessleeper
Similarly, agricultural plastics such as mulch film, drip tape and silage bags are being diverted from the waste stream and successfully recycled into much larger products for industrial applications such as plastic composite railroad ties.
In more recent times, a number of companies are selling composite railroad ties manufactured from recycled plastic resins and recycled rubber.

Drip irrigation

drip tapedripdrip irrigation system
Similarly, agricultural plastics such as mulch film, drip tape and silage bags are being diverted from the waste stream and successfully recycled into much larger products for industrial applications such as plastic composite railroad ties.
Drip tape is a recyclable material and can be recycled into viable plastic resins for reuse in the plastics manufacturing industry.

Plasticulture

agricultural plastics
Similarly, agricultural plastics such as mulch film, drip tape and silage bags are being diverted from the waste stream and successfully recycled into much larger products for industrial applications such as plastic composite railroad ties.
Technologies exist which allow for many ag plastics to be recycled into viable plastic resins for reuse in the plastics manufacturing industry.

High-density polyethylene

HDPEhigh density polyethylenehigh-density polyethylene (HDPE)
Preliminary life-cycle analysis (LCA) indicates that such distributed recycling of HDPE to make filament of 3D printers in rural regions is energetically favorable to either using virgin resin or conventional recycling processes because of reductions in transportation energy

Economics of plastics processing

Recycling plastics presents the difficulty of handling mixed plastics, as unmixed plastics are usually necessary to maintain desirable properties.

Phase-out of lightweight plastic bags

plastic bag banban on plastic bagsphase-out lightweight plastic bags
A plastic recycling levy was introduced on 1 January 2018.

Microplastics

microplasticnurdlesMicroplastics ingested through diet

Scrap

scrap metalscrappedscrap iron
Plastic recycling is the process of recovering scrap or waste plastic and reprocessing the material into useful products.

Biodegradation

biodegradablebiodegradabilitybio-degradable
Since the vast majority of plastic is non-biodegradable, recycling is a part of global efforts to reduce plastic in the waste stream, especially the approximately 8 million metric tonnes of waste plastic that enters the Earth's ocean every year.

Glass recycling

culletrecycled glassrecycled
Compared with lucrative recycling of metal, and similar to the low value of glass recycling, plastic polymers recycling is often more challenging because of low density and low value.

Materials recovery facility

materials recovery facilitiesmaterial recoverymaterial recovery facility
Materials recovery facilities are responsible for sorting and processing plastics, but have struggled to do so economically as of 2019.

List of synthetic polymers

synthetic polymertypes of plasticsynthetic polymers
When different types of plastics are melted together, they tend to phase-separate, like oil and water, and set in these layers.

Phase separation

phase-separate
When different types of plastics are melted together, they tend to phase-separate, like oil and water, and set in these layers.

Phase boundary

phase boundariesphase interfaces
The phase boundaries cause structural weakness in the resulting material, meaning that polymer blends are useful in only limited applications.