Polyethylene - Revision history

Designing Buildings at 08:19, 3 November 2020

2020-11-03T08:19:51Z

← Older revision		Revision as of 08:19, 3 November 2020
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	* Site storage.		* Site storage.

−	[[Category:~~Products_/_components~~]] [[Category:DCN_Product_Knowledge]]	+	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:Products_/_components]]

Editor at 17:32, 11 April 2019

2019-04-11T17:32:30Z

← Older revision		Revision as of 17:32, 11 April 2019
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	* Plastic.		* Plastic.
	* Polymers.		* Polymers.
		+	* Polypropylene.
	* Polystyrene.		* Polystyrene.
	* Polyvinyl chloride PVC.		* Polyvinyl chloride PVC.
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	* Site storage.		* Site storage.

−	[[Category:Products_/_components]]	+	[[Category:Products_/_components]] [[Category:DCN_Product_Knowledge]]

Editor at 18:36, 9 April 2019

2019-04-09T18:36:38Z

← Older revision		Revision as of 18:36, 9 April 2019
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	* Polystyrene.		* Polystyrene.
	* Polyvinyl chloride PVC.		* Polyvinyl chloride PVC.
		+	* PTFE.
	* Site storage.		* Site storage.

	[[Category:Products_/_components]]		[[Category:Products_/_components]]

Designing Buildings at 15:31, 18 March 2019

2019-03-18T15:31:31Z

← Older revision		Revision as of 15:31, 18 March 2019
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	* A temporary flashing material for doors, windows and so on.		* A temporary flashing material for doors, windows and so on.

−	~~= Find out more =~~	+	= Related articles on Designing Buildings Wiki =
−		+
−	=== Related articles on Designing Buildings Wiki ===	+

		+	* Acrylic.
	* Architectural fabrics.		* Architectural fabrics.
	* Carbon fibre.		* Carbon fibre.

Designing Buildings at 09:07, 28 June 2018

2018-06-28T09:07:08Z

← Older revision		Revision as of 09:07, 28 June 2018
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	Polyethylene, also known as polythene, is one of the most common types of plastic. There are many different kinds of polyethylene, most of which are identified by the chemical formula (C2H4)n.		Polyethylene, also known as polythene, is one of the most common types of plastic. There are many different kinds of polyethylene, most of which are identified by the chemical formula (C2H4)n.

−	It is produced from ethylene which is typically obtained from petroleum or natural gas, as well as from less common renewable sources. Polyethylene has a wide range of uses, predominantly as packaging in the form of bags, sacks, films, geomembranes, containers, pipes, and so on.	+	Polyethylene is produced from ethylene which is typically obtained from petroleum or natural gas, as well as from less common renewable sources. Polyethylene has a wide range of uses, predominantly as packaging in the form of bags, sacks, films, geomembranes, containers, pipes, and so on.

−	~~In terms of properties, polyethylene~~ has high ductility and impact strength as well as low friction and is a good electrical insulator. It is also ~~able to provide~~ resistance ~~against~~ moisture. However, ~~it is~~ limited by its relatively low melting point of around 80 °C (176 °F), its low strength, hardness and rigidity.	+	Polyethylene has high ductility and impact strength as well as low friction and is a good electrical insulator. It also has good resistance to moisture. However, its uses are limited by its relatively low melting point of around 80 °C (176 °F), its low strength, hardness and rigidity.

−	Polyethylene can ~~also~~ pose problems for waste management as it is non-biodegradable and so ~~tends to accumulate~~ in large quantities in landfill sites. If it is incinerated, it can produce gaseous emissions ~~which may be harmful~~.	+	Polyethylene can pose problems for waste management as it is non-biodegradable and so accumulates in large quantities in landfill sites. If it is incinerated, it can, under some circumstance, produce harmful gaseous emissions.

−	~~Polyethylene is classified by its density and branching, with its~~ precise properties ~~depending in large part~~ on the variable extent and type of branching, molecular weight and crystal structures. ~~The different~~ classifications are used for different applications; for example, high-density polyethylene is often used for pipes that are corrosion-resistant and leak-free.	+	Its precise properties depend on the variable extent and type of branching, molecular weight and crystal structures. Different classifications are used for different applications; for example, high-density polyethylene is often used for pipes that are corrosion-resistant and leak-free.

	In addition to pipes, some of the most common applications of polyethylene in construction include:		In addition to pipes, some of the most common applications of polyethylene in construction include:

	* Sheet (film) to provide protection for materials and seal off rooms.		* Sheet (film) to provide protection for materials and seal off rooms.
−	* Damp-proof ~~membrane~~ (DPM).	+	* Damp-proof membranes (DPM).
	* A loose lining material for foundations.		* A loose lining material for foundations.
	* To protect concrete during the curing process.		* To protect concrete during the curing process.
−	* A temporary flashing material for doors, windows~~, bay,~~ and so on.	+	* A temporary flashing material for doors, windows and so on.

	= Find out more =		= Find out more =

Editor: Created page with "Polyethylene, also known as polythene, is one of the most common types of plastic. There are many different kinds of polyethylene, most of which are identified by the chemical fo..."

2018-06-12T13:46:48Z

Created page with "Polyethylene, also known as polythene, is one of the most common types of plastic. There are many different kinds of polyethylene, most of which are identified by the chemical fo..."

New page

Polyethylene, also known as polythene, is one of the most common types of plastic. There are many different kinds of polyethylene, most of which are identified by the chemical formula (C2H4)n.

It is produced from ethylene which is typically obtained from petroleum or natural gas, as well as from less common renewable sources. Polyethylene has a wide range of uses, predominantly as packaging in the form of bags, sacks, films, geomembranes, containers, pipes, and so on.

In terms of properties, polyethylene has high ductility and impact strength as well as low friction and is a good electrical insulator. It is also able to provide resistance against moisture. However, it is limited by its relatively low melting point of around 80 °C (176 °F), its low strength, hardness and rigidity.

Polyethylene can also pose problems for waste management as it is non-biodegradable and so tends to accumulate in large quantities in landfill sites. If it is incinerated, it can produce gaseous emissions which may be harmful.

Polyethylene is classified by its density and branching, with its precise properties depending in large part on the variable extent and type of branching, molecular weight and crystal structures. The different classifications are used for different applications; for example, high-density polyethylene is often used for pipes that are corrosion-resistant and leak-free.

In addition to pipes, some of the most common applications of polyethylene in construction include:

* Sheet (film) to provide protection for materials and seal off rooms.
* Damp-proof membrane (DPM).
* A loose lining material for foundations.
* To protect concrete during the curing process.
* A temporary flashing material for doors, windows, bay, and so on.

= Find out more =

=== Related articles on Designing Buildings Wiki ===

* Architectural fabrics.
* Carbon fibre.
* Construction materials.
* Damp proof membrane DPM.
* ETFE.
* EVA film.
* Pipelines.
* Plastic.
* Polymers.
* Polystyrene.
* Polyvinyl chloride PVC.
* Site storage.

[[Category:Products_/_components]]