LDPE (4): Difference between revisions
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'''LDPE''' ([[wikipedia:Low-density polyethylene|Low Density Polyethylene]]) is a type of plastic often used in plastic bags and wrapping material that is captured as [[Plastic|LDPE (4)]] in WikiWaste. | |||
[[Category:Tonnage & Waste Types]] | [[Category:Tonnage & Waste Types]][[Category:Acronym]] | ||
[[File:Symbol Resin Code 4 LDPE.svg|150px|left]] | |||
[[LDPE (4)]] ([[wikipedia:Low-density polyethylene|low density polyethylene]]) is a soft, flexible, lightweight plastic material. [[LDPE (4)]] is noted for its low temperature flexibility, toughness, and corrosion resistance<ref name="CURB">[https://www.curbellplastics.com/ResearchSolutions/Materials/LDPE#:~:text=LDPE%20(low%20density%20polyethylene)%20is,%2C%20toughness%2C%20and%20corrosion%20resistance.&text=LDPE%20has%20good%20chemical%20and,easy%20to%20fabricate%20and%20form/ Curbell Plastics]</ref>. It is not suited for applications where stiffness, high temperature resistance and structural strength are required. | |||
[[LDPE (4)]] was the first polyethylene to be produced during the 1930s. [[LDPE (4)]] has good chemical and impact resistance and is easy to fabricate and form<ref name="CURB" />. | |||
[[LDPE (4)]] is a thermoplastic that is created from the monomer ethylene<ref name="exp">[https://www.plasticexpert.co.uk/plastic-recycling/ldpe-recycling-plastic/ Plastic Expert]</ref>.the same as [[HDPE (2)]] with [[LDPE (4)]] having a lower density than [[HDPE (2)]] making it slightly more malleable and not as strong as [[HDPE (2)]]<ref name="EVE">[https://everydayrecycler.com/plastic-numbers-no-4-ldpe/ Everday Recycler]</ref>. LDPE (4) comes in two forms - rigid [[LDPE (4)]] and soft [[LDPE (4)]]; both of which can be recycled<ref name="EVE" />. This type of plastic is often utilised in film applications because it is relatively transparent, as well as being flexible and tough<ref name="exp" />. It is also used to produce some flexible bottles and lids, as well as being used in some cable and wire applications<ref name="exp" />. | |||
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[[LDPE (4)]] can be found in a number of different items around the home<ref name="exp"/>: | |||
*Pallet wrap | |||
*Squeezeable bottles i.e. hand cream tubes | |||
*Shrink Wrap | |||
*Plastic film | |||
*Packaging | |||
*Bags and coverings | |||
*Clear plastic bags - frozen food bags, bin liners, household garbage and bakery bags. | |||
[[LDPE (4)]] can be recycled but it is not widely recycled via kerbside collection systems throughout the UK. Check with the [[Local Authority]] to determine if it is collected for recycling in a particular area. | |||
<gallery widths=300px heights=200px perrow=5 caption="LDPE Examples"> | |||
File:LDPE Foam.jpg|LDPE Foam | |||
File:LDPE Bales.jpg|none|LDPE Bales<ref name="exp" /> | |||
File:Facial wash gel bottle made of LDPE.jpg|Facial wash gel bottle made of LDPE | |||
File:Food Bags.jpg|none|Food Bags | |||
</gallery > | |||
====Properties==== | |||
:Ease of processing; strength; flexibility; ease of sealing; moisture barrier. | |||
====Common Applications==== | |||
:Frozen food bags; squeezable bottles, e.g. honey, mustard; cling films; flexible container lids. | |||
==References== | |||
<references /> |