What is Polyethylene?
Polyethylene (also known as PE) is the most common plastic on the earth, with over 100m Tonnes of Polyethylene produced in 2017. It is used in consumer markets for packaging, containers, plastic bags, milk bottles, etc, and also in mining and industrial markets for pressure piping and tanks. PE is a thermoplastic made of a mixture of ethylene polymers, and is derived from petroleum or natural gas.
What is HDPE?
HDPE is a type of Polyethylene used for high pressure pipes and fittings. HDPE stands for High Density PolyEthylene, which means it has a density from 930 kg/m3 to 970 kg/m3. The little branching within the HDPE gives it strong inter-molecular tensile strength than other plastics. LDPE is a Low Density PolyEthylene, which is not as strong as HDPE, and is mainly used for lower-pressure pipes and drainage fittings.
What is HDPE used for?
One of the major benefits of Polyethylene is that it can be ground up, heated, and reformed into a new product. The 'little branches' in the Polyethylene will regenerate when they are reheated to a specific temperature, meaning the strength of the new product is almost identical to the strength of the old product.
Why do we recycle HDPE or Polyethylene?
Polyethylene has a very low gas and water vapour permeability - lower than most plastics. When exposed to UV rays or sunlight, PE can become brittle, so carbon black is used to stabilise the material. This often gives PE material a black or grey look, although colours can be added. HDPE material is highly resistant to corrosion, internal erosion, and moisture, meaning it does not readily break down in nature. While this can lead to a grave environmental concern, PolyWaste has a solution!
How do you Recycle HDPE?
We collect, sort and recycle old HDPE items, and in doing so, contribute to environmental sustainability. By collecting scrap HDPE materials from piping contractors or fabricators, we are diverting HDPE material from landfill, and ensuring it is reused in the most beneficial manner. We sort the HDPE material into similar items, and then put it through a cleaning and shredding process, which finally ends with the Polyethylene scrap in very small shards, able to be reheated and reformed into new products.
What do you use Recycled HDPE for?
HDPE waste is often recycled into household and community items, such as garden decorations, pet accessories, park benches, and playgrounds, or into commercial items, such as below-ground telecommunications pits, drainage pipe, bakery trays, and storage containers.
Please note PolyWaste does not make these items, but supplies the recycled material to manufacturers who specialise in making these items.
Contact PolyWaste today! Our team will be glad to assist you!
Copyright 2018 PolyWaste - Please reference this site if you copy this material.
We provide HDPE Recycling Services in Western Australia.
PolyWaste was founded due to the need for Environmentally Friendly recycling of HDPE waste. Western Australia's large mining and agricultural industries generate large amounts of Poly Waste.
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