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. | '''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:Acronym]] | [[Category:Tonnage & Waste Types]][[Category:Acronym]] | ||
[[File:Symbol Resin Code 4 LDPE.svg|150px|left]] | [[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)]] ([[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" />. | |||
<br clear="left" /> | |||
[[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==== | ====Properties==== | ||
Latest revision as of 11:17, 14 July 2022
LDPE (Low Density Polyethylene) is a type of plastic often used in plastic bags and wrapping material that is captured as LDPE (4) in WikiWaste.
LDPE (4) (low density polyethylene) is a soft, flexible, lightweight plastic material. LDPE (4) is noted for its low temperature flexibility, toughness, and corrosion resistance[1]. 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[1].
LDPE (4) is a thermoplastic that is created from the monomer ethylene[2].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)[3]. LDPE (4) comes in two forms - rigid LDPE (4) and soft LDPE (4); both of which can be recycled[3]. This type of plastic is often utilised in film applications because it is relatively transparent, as well as being flexible and tough[2]. It is also used to produce some flexible bottles and lids, as well as being used in some cable and wire applications[2].
LDPE (4) can be found in a number of different items around the home[2]:
- 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.
- LDPE Examples
-
LDPE Foam -
![LDPE Bales[2]](/images/thumb/b/b8/LDPE_Bales.jpg/267px-LDPE_Bales.jpg)
LDPE Bales[2] -
Facial wash gel bottle made of LDPE -
Food Bags
![LDPE Bales[2]](/index.php/File:LDPE_Bales.jpg)
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.