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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: Container and Packaging
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
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
Difference Between HDPE and LDPE
Difference Between HDPE and LDPE
Published: 2016/01/07
Channel: Difference Between
Melting LDPE - home plastic shaping 2
Melting LDPE - home plastic shaping 2
Published: 2015/10/21
Channel: Roving Jack
Linear low-density polyethylene
Linear low-density polyethylene
Published: 2015/11/20
Channel: Audiopedia
Low-density polyethylene
Low-density polyethylene
Published: 2014/10/10
Channel: Audiopedia
Plastic Comparison  - LLDPE Vs HDPE
Plastic Comparison - LLDPE Vs HDPE
Published: 2015/11/10
Channel: Canoe Shops Group
GE
GE's LDPE hypercompressor
Published: 2015/05/08
Channel: GE Oil & Gas
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)
Global Low Density Polyethylene (LDPE) Industry 2015 Market Research Report
Global Low Density Polyethylene (LDPE) Industry 2015 Market Research Report
Published: 2015/08/06
Channel: Peter Hernandez
Low-density Polyethylene
Low-density Polyethylene
Published: 2017/12/15
Channel: Jan Min Ji
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
How to tell the difference between ldpe hdpe pp ps disposable cup
How to tell the difference between ldpe hdpe pp ps disposable cup
Published: 2017/05/07
Channel: Peter Cao
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
LLDPE (Linear Low Density Polyethylene) UML
LLDPE (Linear Low Density Polyethylene) UML
Published: 2016/12/05
Channel: Joey Pescatore
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
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
You cannot mix HDPE and LDPE
You cannot mix HDPE and LDPE
Published: 2017/04/30
Channel: Peter Cao
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.
Linear Low Density Plastic vs High Density Plastic
Linear Low Density Plastic vs High Density Plastic
Published: 2011/11/02
Channel: NCWMntep
Industrial Film LDPE Film Recycling Line Malaysia
Industrial Film LDPE Film Recycling Line Malaysia
Published: 2013/09/05
Channel: Ted Kao
LDPE Contracting
LDPE Contracting
Published: 2015/06/02
Channel: thyssenkrupp Industrial Solutions
MYOG low-density polyethylene (LDPE) tarptent - Part 1
MYOG low-density polyethylene (LDPE) tarptent - Part 1
Published: 2010/08/16
Channel: topshotrhit
LDPE Ink Pen
LDPE Ink Pen
Published: 2014/12/22
Channel: RJBWoodTurner
Crystalisation of Low Density Polyethylene (LDPE)
Crystalisation of Low Density Polyethylene (LDPE)
Published: 2009/05/18
Channel: Matthew James
LDPE Banana Agriculture Film Washing Line & Extruder 2016 in HK
LDPE Banana Agriculture Film Washing Line & Extruder 2016 in HK
Published: 2016/11/08
Channel: Ted Kao
"Welding" LLDPE plastic
"Welding" LLDPE plastic
Published: 2016/08/14
Channel: TrollForge
LDPE and HDPE
LDPE and HDPE
Published: 2014/10/16
Channel: Samantha Dreon
Comparing LDPE and HDPE
Comparing LDPE and HDPE
Published: 2017/07/26
Channel: Mr Keipert
LDPE FILM RECYCLING PLANT HYDERABAD
LDPE FILM RECYCLING PLANT HYDERABAD
Published: 2016/11/13
Channel: wali engineering works
Low Density Polyethylene Blown Film Extrusion For Plastic Bag
Low Density Polyethylene Blown Film Extrusion For Plastic Bag
Published: 2013/11/27
Channel: kingdommachine1
plastic low density polyethylene LDPE pulverizer machine with CE certificate
plastic low density polyethylene LDPE pulverizer machine with CE certificate
Published: 2017/12/14
Channel: Machine Anda
Introduction to High Density and Low Density Bags
Introduction to High Density and Low Density Bags
Published: 2012/05/15
Channel: Store Supply Warehouse
Custom Poly Tubing - From 100% Virgin Low Density Polyethylene
Custom Poly Tubing - From 100% Virgin Low Density Polyethylene
Published: 2015/03/07
Channel: Packaging Supplies, Inc
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
MYOG low-density polyethylene (LDPE) tarptent - Part 2
MYOG low-density polyethylene (LDPE) tarptent - Part 2
Published: 2010/08/16
Channel: topshotrhit
SJ65-1400 HDPE/LDPE/LLDPE Blown Film Machine
SJ65-1400 HDPE/LDPE/LLDPE Blown Film Machine
Published: 2015/12/03
Channel: Bonada Machine
LDPE, HDPE & Plastic Granules by Aegis Polymers, Navi Mumbai
LDPE, HDPE & Plastic Granules by Aegis Polymers, Navi Mumbai
Published: 2014/02/05
Channel: IndiaMART
Polyfuze HT Labeling - Material Testing Series Low Density Polyethylene
Polyfuze HT Labeling - Material Testing Series Low Density Polyethylene
Published: 2016/11/07
Channel: Polyfuze Graphics™ Corp.
Polymer Detectives - Science Olympiad - Video 2 - HDPE, LDPE, PP
Polymer Detectives - Science Olympiad - Video 2 - HDPE, LDPE, PP
Published: 2012/01/09
Channel: okshekhar
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
High-Density vs Low-Density Trash Can Liners
High-Density vs Low-Density Trash Can Liners
Published: 2010/02/11
Channel: The Janitorial Store
DIFFERENCE BETWEEN LOW DENSITY POLYTHENE & HIGH DENSITY POLYTHENE
DIFFERENCE BETWEEN LOW DENSITY POLYTHENE & HIGH DENSITY POLYTHENE
Published: 2017/07/21
Channel: Himanshu Sharma
HDPE and LDPE film bag making machine
HDPE and LDPE film bag making machine
Published: 2014/10/16
Channel: Polystar Machinery
Extrusion of LDPE blown film
Extrusion of LDPE blown film
Published: 2013/01/17
Channel: Davor Ujlaki
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
SJ50-700 HDPE/LDPE/LLDPE Film Blowing Machine
SJ50-700 HDPE/LDPE/LLDPE Film Blowing Machine
Published: 2015/10/03
Channel: Bonada Machine
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WIKIPEDIA ARTICLE

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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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