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Low Density Polyethylene (LDPE) Production Overview
Low Density Polyethylene (LDPE) Production Overview
Published: 2015/07/16
Channel: Polymer Reaction Engineering
What is LDPE?
What is LDPE?
Published: 2009/10/07
Channel: conpakvideos
7. production of low density and high density polyethylene (HSC chemistry)
7. production of low density and high density polyethylene (HSC chemistry)
Published: 2011/12/15
Channel: Letslearnscience
Melting LDPE - home plastic shaping 2
Melting LDPE - home plastic shaping 2
Published: 2015/10/21
Channel: Roving Jack
Difference Between HDPE and LDPE
Difference Between HDPE and LDPE
Published: 2016/01/07
Channel: Difference Between
Low Density Polyethylene Plastic Bags - HgCdTe MCV
Low Density Polyethylene Plastic Bags - HgCdTe MCV
Published: 2015/04/30
Channel: Intro to Materials Science--Guided Inquiry (UVa)
Low-density polyethylene
Low-density polyethylene
Published: 2014/10/10
Channel: Audiopedia
Recycling Everyday Plastics: What You Should Know About LDPE and HDPE
Recycling Everyday Plastics: What You Should Know About LDPE and HDPE
Published: 2015/10/15
Channel: PolychemUSA
Linear low-density polyethylene
Linear low-density polyethylene
Published: 2015/11/20
Channel: Audiopedia
Linear Low Density Plastic vs High Density Plastic
Linear Low Density Plastic vs High Density Plastic
Published: 2011/11/02
Channel: NCWMntep
MYOG low-density polyethylene (LDPE) tarptent - Part 1
MYOG low-density polyethylene (LDPE) tarptent - Part 1
Published: 2010/08/16
Channel: topshotrhit
Mixed LDPE Film Recycling Line Malaysia
Mixed LDPE Film Recycling Line Malaysia
Published: 2013/09/05
Channel: Ted Kao
LDPE/HDPE Film Blowing Machine
LDPE/HDPE Film Blowing Machine
Published: 2008/05/26
Channel: sunnyczh
Low Density Polyethylene Bags - Flat
Low Density Polyethylene Bags - Flat
Published: 2016/05/23
Channel: Can U Show Me How
High Density polyethene and Low density polyethene -JEE Advanced || Mains (Hinglish)
High Density polyethene and Low density polyethene -JEE Advanced || Mains (Hinglish)
Published: 2016/08/14
Channel: Any Time Padhai Academy
LLDPE (Linear Low Density Polyethylene) UML
LLDPE (Linear Low Density Polyethylene) UML
Published: 2016/12/05
Channel: Joey Pescatore
Bags, Film, Sheet, high and low density polyethylene washing and drying Line
Bags, Film, Sheet, high and low density polyethylene washing and drying Line
Published: 2012/05/02
Channel: EuroMaquinas deMexico
Low Density Polyethylene Blown Film Extrusion For Plastic Bag
Low Density Polyethylene Blown Film Extrusion For Plastic Bag
Published: 2013/11/27
Channel: kingdommachine1
√ Production and uses of polyethylene | Production of Materials | iitutor
√ Production and uses of polyethylene | Production of Materials | iitutor
Published: 2016/02/17
Channel: iitutor.com
Polymer Detectives - Science Olympiad - Video 2 - HDPE, LDPE, PP
Polymer Detectives - Science Olympiad - Video 2 - HDPE, LDPE, PP
Published: 2012/01/09
Channel: okshekhar
Plastic Comparison  - LLDPE Vs HDPE
Plastic Comparison - LLDPE Vs HDPE
Published: 2015/11/10
Channel: Canoe Shops Group
What is the different of HDPE-MDPE-LDPE (High-Medium-Low Density Polypropylene)?
What is the different of HDPE-MDPE-LDPE (High-Medium-Low Density Polypropylene)?
Published: 2016/11/11
Channel: BUZZTECHBD CORPORATION
Introduction to High Density and Low Density Bags
Introduction to High Density and Low Density Bags
Published: 2012/05/15
Channel: Store Supply Warehouse
LDPE film reclaim machine
LDPE film reclaim machine
Published: 2015/02/12
Channel: Polystar Machinery
Low Density Colorful EVA/PE Foam Sheet 2-90mm for sale-nbeva.com
Low Density Colorful EVA/PE Foam Sheet 2-90mm for sale-nbeva.com
Published: 2016/11/08
Channel: Ningbo Yiweiai Rubber & Plastic Technology Co., Ltd.
Global Low Density Polyethylene (LDPE) Market 2015-2019
Global Low Density Polyethylene (LDPE) Market 2015-2019
Published: 2015/07/24
Channel: Technavio
Crystalisation of Low Density Polyethylene (LDPE)
Crystalisation of Low Density Polyethylene (LDPE)
Published: 2009/05/18
Channel: Matthew James
MYOG low-density polyethylene (LDPE) tarptent - Part 2
MYOG low-density polyethylene (LDPE) tarptent - Part 2
Published: 2010/08/16
Channel: topshotrhit
LDPE and HDPE
LDPE and HDPE
Published: 2014/10/16
Channel: Samantha Dreon
LDPE, HDPE AND POLYPROPYLENE SHEET | U.S. Plastic Corporation® | Product Spotlight
LDPE, HDPE AND POLYPROPYLENE SHEET | U.S. Plastic Corporation® | Product Spotlight
Published: 2014/05/21
Channel: U.S. Plastic Corporation
LDPE, HDPE & Plastic Granules by Aegis Polymers, Navi Mumbai
LDPE, HDPE & Plastic Granules by Aegis Polymers, Navi Mumbai
Published: 2014/02/05
Channel: IndiaMART
LDPE Contracting
LDPE Contracting
Published: 2015/06/02
Channel: thyssenkrupp Industrial Solutions
Low Density Polyethylene Boomwhackers!!!!
Low Density Polyethylene Boomwhackers!!!!
Published: 2017/01/12
Channel: Luischocolatier
Low Density Polyethylene Disposable Gloves 500Box/2Carton/10Case
Low Density Polyethylene Disposable Gloves 500Box/2Carton/10Case
Published: 2012/07/29
Channel: Jessica Kutoff
5 GALLON LOW DENSITY POLYETHYLENE ANTI-STATIC INSERT FOR PAILS | U.S. Plastic Corporation®
5 GALLON LOW DENSITY POLYETHYLENE ANTI-STATIC INSERT FOR PAILS | U.S. Plastic Corporation®
Published: 2016/08/01
Channel: U.S. Plastic Corporation
Wicketed Bread Bags -  Low Density Polyethylene
Wicketed Bread Bags - Low Density Polyethylene
Published: 2014/07/23
Channel: Packaging Experts
( LDPE ) MINI TYPE AIR COOLING  PLASTIC WASTE RECYCLE MACHINE (CT-RZ-85A)
( LDPE ) MINI TYPE AIR COOLING PLASTIC WASTE RECYCLE MACHINE (CT-RZ-85A)
Published: 2011/02/11
Channel: Matila1988
HDPE and LDPE film bag making machine
HDPE and LDPE film bag making machine
Published: 2014/10/16
Channel: Polystar Machinery
Algeria Agriculture Film LDPE Film Washing Line Made In Taiwan
Algeria Agriculture Film LDPE Film Washing Line Made In Taiwan
Published: 2015/10/29
Channel: Ted Kao
PP HDPE LDPE LLDPE Waste Plastic Recycling Plant
PP HDPE LDPE LLDPE Waste Plastic Recycling Plant
Published: 2016/12/12
Channel: ABA Blow Film Machine
LDPE Extrusion Screw Explained
LDPE Extrusion Screw Explained
Published: 2014/02/18
Channel: Brentwood Plastics
Low Density Polyethylene Industry 2016 : Global Market Outlook
Low Density Polyethylene Industry 2016 : Global Market Outlook
Published: 2016/03/10
Channel: Shree Rana
Wholesale Poly Tubing Roll - 100% Virgin Low Density Polyethylene
Wholesale Poly Tubing Roll - 100% Virgin Low Density Polyethylene
Published: 2014/12/21
Channel: MTS Video Marketing
Global Linear Low Density Polyethylene Market 2015 2019
Global Linear Low Density Polyethylene Market 2015 2019
Published: 2015/08/05
Channel: Market Research Reports
A.5 LDPE and HDPE (SL)
A.5 LDPE and HDPE (SL)
Published: 2016/05/29
Channel: Mike Sugiyama Jones
YJF-70-1400L, LDPE/LLDPE Blown Film Extruder.
YJF-70-1400L, LDPE/LLDPE Blown Film Extruder.
Published: 2016/04/05
Channel: Jong Eui Kim
LDPE Pipe Folding/ Coiling & Wrapping Operation
LDPE Pipe Folding/ Coiling & Wrapping Operation
Published: 2013/06/29
Channel: Praveen Kalra
HDPE. HIPS. PP. LDPE
HDPE. HIPS. PP. LDPE
Published: 2012/08/14
Channel: polimers1
LDPE film blowing machine
LDPE film blowing machine
Published: 2015/06/17
Channel: Polystar Machinery
SJ65-1400 HDPE/LDPE/LLDPE Blown Film Machine
SJ65-1400 HDPE/LDPE/LLDPE Blown Film Machine
Published: 2015/12/03
Channel: Bonada Machine
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WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
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LDPE has SPI resin ID code 4
LDPE branching structure

Low-density polyethylene (LDPE) is a thermoplastic made from the monomer ethylene. It was the first grade of polyethylene, produced in 1933 by Imperial Chemical Industries (ICI) using a high pressure process via free radical polymerization.[1] Its manufacture employs the same method today. The EPA estimates 5.7% of LDPE (recycling number 4) is recycled.[2] Despite competition from more modern polymers, LDPE continues to be an important plastic grade. In 2013 the worldwide LDPE market reached a volume of about US$33 billion.[3]

Properties[edit]

LDPE is defined by a density range of 0.910–0.940 g/cm3. It is not reactive at room temperatures, except by strong oxidizing agents, and some solvents cause swelling. It can withstand temperatures of 80 °C continuously and 95 °C for a short time. Made in translucent or opaque variations, it is quite flexible and tough.

LDPE has more branching (on about 2% of the carbon atoms) than HDPE, so its intermolecular forces (instantaneous-dipole induced-dipole attraction) are weaker, its tensile strength is lower, and its resilience is higher. Also, because its molecules are less tightly packed and less crystalline due to the side branches, its density is lower.

Chemical resistance[edit]

Applications[edit]

A GEECO bowl, c.1950, still used in 2014.
A piece of packaging foam made from LDPE

LDPE is widely used for manufacturing various containers, dispensing bottles, wash bottles, tubing, plastic bags for computer components, and various molded laboratory equipment. Its most common use is in plastic bags. Other products made from it include:

See also[edit]

References[edit]

External links[edit]

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