Medium Density Polyethylene (MDPE) - Revision history

Designing Buildings at 08:59, 10 January 2023

2023-01-10T08:59:30Z

← Older revision		Revision as of 08:59, 10 January 2023
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−	Medium Density Polyethylene (MDPE) is part of the ~~Polyethylene~~ family of thermoplastics which include HDPE and LDPE. MDPE, is usually black or blue and may also be referred to as black alkathene~~, it~~ has a relatively dense molecular structure, lower than HDPE and higher than LDPE.	+	Medium Density Polyethylene (MDPE) is part of the polyethylene family of thermoplastics which include HDPE and LDPE. MDPE, is usually black or blue and may also be referred to as black alkathene. It has a relatively dense molecular structure, which is lower than HDPE and higher than LDPE.

−	When ethylene is ~~polymerized~~ it is straight polymer chains, with branches from a main chain, LDPE has the most branching as so is least dense, whilst HDPE has the least branching so is the more dense, whilst MDPE is in between. LDPE, HDPE, LLDPE, PP are polyolefins, which are high molecular weight hydrocarbons~~, they~~ are some of the ~~only~~ plastics ~~existing~~ that have a ~~lower~~ specific gravity, weighing less than water. They are susceptible to oxidation and UV damage.	+	When ethylene is polymerised it has straight polymer chains, with branches from a main chain. LDPE has the most branching and so is least dense, whilst HDPE has the least branching so is the more dense, whilst MDPE is in between. LDPE, HDPE, LLDPE, PP (polypropylene) are polyolefins, which are high molecular weight hydrocarbons. They are some of the few plastics that have a low specific gravity, weighing less than water. They are susceptible to oxidation and UV damage.

−	MDPE is ~~therefore~~, as with other ~~Polyethylenes lighweight~~ and flexible, so often used in the manufacture of ~~various~~ gas pipes and fittings, sacks, carrier bags, and screw closures. On construction sites and factories it os often used ~~as key element to pallets packing and shipping~~ as a shrink wrap, slightly heavier duty than LDPE shrink wrap..	+	MDPE is, as with other polyethylenes, lightweight and flexible, so it is often used in the manufacture of gas pipes and fittings, sacks, carrier bags, and screw closures. On construction sites and factories it is often used as a shrink wrap, slightly heavier duty than LDPE shrink wrap.

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

Editor at 12:07, 4 January 2023

2023-01-04T12:07:49Z

← Older revision		Revision as of 12:07, 4 January 2023
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	= Related articles on Designing Buildings =		= Related articles on Designing Buildings =

−	Glass reinforced plastic GRP	+	* Glass reinforced plastic GRP
−		+	* Glass fibre reinforced plastic
−	Glass fibre reinforced plastic	+	* High Density Polyethylene (HDPE)
−		+	* High Density Polypropylene (HDPP)
−	High Density Polyethylene (HDPE)	+	* Low Density Polyethylene (LDPE)
−		+	* Polycarbonate plastic.
−	High Density Polypropylene (HDPP)	+	* Polypropylene in the construction industry.
−		+	* Plastic cladding.
−	Low Density Polyethylene (LDPE)	+	* Plastic coating market.
−		+	* Plastic in construction.
−	Polycarbonate plastic.	+	* Plastic in concrete.
−		+	* Recycled plastic bridges.
−	Polypropylene in the construction industry.	+	* Wood plastic composites market for construction
−		+
−	Plastic cladding.	+
−		+
−	Plastic coating market.	+
−		+
−	Plastic in construction.	+
−		+
−	Plastic in concrete.	+
−		+
−	Recycled plastic bridges.	+
−		+
−	Wood plastic composites market for construction	+

	[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:Definitions]] [[Category:Products_/_components]]		[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:Definitions]] [[Category:Products_/_components]]

Editor: Created page with "Medium Density Polyethylene (MDPE) is part of the Polyethylene family of thermoplastics which include HDPE and LDPE. MDPE, is usually black or blue and may also be referred to as..."

2023-01-04T12:07:21Z

Created page with "Medium Density Polyethylene (MDPE) is part of the Polyethylene family of thermoplastics which include HDPE and LDPE. MDPE, is usually black or blue and may also be referred to as..."

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Medium Density Polyethylene (MDPE) is part of the Polyethylene family of thermoplastics which include HDPE and LDPE. MDPE, is usually black or blue and may also be referred to as black alkathene, it has a relatively dense molecular structure, lower than HDPE and higher than LDPE.

When ethylene is polymerized it is straight polymer chains, with branches from a main chain, LDPE has the most branching as so is least dense, whilst HDPE has the least branching so is the more dense, whilst MDPE is in between. LDPE, HDPE, LLDPE, PP are polyolefins, which are high molecular weight hydrocarbons, they are some of the only plastics existing that have a lower specific gravity, weighing less than water. They are susceptible to oxidation and UV damage.

MDPE is therefore, as with other Polyethylenes lighweight and flexible, so often used in the manufacture of various gas pipes and fittings, sacks, carrier bags, and screw closures. On construction sites and factories it os often used as key element to pallets packing and shipping as a shrink wrap, slightly heavier duty than LDPE shrink wrap..

= Related articles on Designing Buildings =

Glass reinforced plastic GRP

Glass fibre reinforced plastic

High Density Polyethylene (HDPE)

High Density Polypropylene (HDPP)

Low Density Polyethylene (LDPE)

Polycarbonate plastic.

Polypropylene in the construction industry.

Plastic cladding.

Plastic coating market.

Plastic in construction.

Plastic in concrete.

Recycled plastic bridges.

Wood plastic composites market for construction

[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:Definitions]] [[Category:Products_/_components]]