SPONSORED VIDEO
Play Video
1
7. production of low density and high density polyethylene (HSC chemistry)
7. production of low density and high density polyethylene (HSC chemistry)
::2011/12/14::
Play Video
2
What is LDPE?
What is LDPE?
::2009/10/07::
Play Video
3
Polyethylene PE Film - How it
Polyethylene PE Film - How it's made
::2012/11/30::
Play Video
4
Bags, Film, Sheet, high and low density polyethylene washing and drying Line
Bags, Film, Sheet, high and low density polyethylene washing and drying Line
::2012/05/02::
Play Video
5
Low-density polyethylene
Low-density polyethylene
::2014/10/10::
Play Video
6
Crystalisation of Low Density Polyethylene (LDPE)
Crystalisation of Low Density Polyethylene (LDPE)
::2009/05/18::
Play Video
7
110,000 Ton/Year Low Density Polyethylene (LDPE) Plant for Sale
110,000 Ton/Year Low Density Polyethylene (LDPE) Plant for Sale
::2013/07/03::
Play Video
8
Wholesale Poly Tubing Roll - 100% Virgin Low Density Polyethylene
Wholesale Poly Tubing Roll - 100% Virgin Low Density Polyethylene
::2014/12/21::
Play Video
9
MYOG low-density polyethylene (LDPE) tarptent - Part 1
MYOG low-density polyethylene (LDPE) tarptent - Part 1
::2010/08/16::
Play Video
10
Polymer Detectives - Science Olympiad - Video 2 - HDPE, LDPE, PP
Polymer Detectives - Science Olympiad - Video 2 - HDPE, LDPE, PP
::2012/01/09::
Play Video
11
Wicketed Bread Bags -  Low Density Polyethylene
Wicketed Bread Bags - Low Density Polyethylene
::2014/07/23::
Play Video
12
MYOG low-density polyethylene (LDPE) tarptent - Part 2
MYOG low-density polyethylene (LDPE) tarptent - Part 2
::2010/08/16::
Play Video
13
Low Density Polyethylene Disposable Gloves 500Box/2Carton/20Case
Low Density Polyethylene Disposable Gloves 500Box/2Carton/20Case
::2012/07/29::
Play Video
14
Low Density Polyethylene (LDPE) Uses
Low Density Polyethylene (LDPE) Uses
::2015/01/16::
Play Video
15
Low Density Polyethylene (LDPE) Uses
Low Density Polyethylene (LDPE) Uses
::2014/10/26::
Play Video
16
Uses Of Low-Density Polyethylene
Uses Of Low-Density Polyethylene
::2014/12/22::
Play Video
17
Vestil BTL-RC-8 Low Density Polyethylene (LDPE) Round Squeeze Dispensing Bottle with Removable Red
Vestil BTL-RC-8 Low Density Polyethylene (LDPE) Round Squeeze Dispensing Bottle with Removable Red
::2015/02/25::
Play Video
18
LDPE Ink Pen
LDPE Ink Pen
::2014/12/21::
Play Video
19
Low Density Polyethylene (LDPE) Market - Latest Research Report, 2014 - 2020
Low Density Polyethylene (LDPE) Market - Latest Research Report, 2014 - 2020
::2014/11/06::
Play Video
20
Low Density Polyethylene Blown Film Extrusion For Plastic Bag
Low Density Polyethylene Blown Film Extrusion For Plastic Bag
::2013/11/27::
Play Video
21
hdpe high density polyethylene
hdpe high density polyethylene
::2014/04/04::
Play Video
22
EPE(LDPE) Foam Net Extruder Line/Fruit or vegetables packaging Net Production Line
EPE(LDPE) Foam Net Extruder Line/Fruit or vegetables packaging Net Production Line
::2013/05/15::
Play Video
23
HIGH DENSITY POLYETHYLENE by Khushi Enterprises
HIGH DENSITY POLYETHYLENE by Khushi Enterprises
::2013/10/22::
Play Video
24
Das Band - Fine Polyethylene Extruder.
Das Band - Fine Polyethylene Extruder.
::2013/01/03::
Play Video
25
Hdpe Scrap,Hdpe Waste,High Density Polyethylene Scrap
Hdpe Scrap,Hdpe Waste,High Density Polyethylene Scrap
::2013/07/30::
Play Video
26
Polyethylene
Polyethylene
::2010/11/30::
Play Video
27
Double colors strip Film Blowing machine(HDPE / LDPE film)
Double colors strip Film Blowing machine(HDPE / LDPE film)
::2012/10/29::
Play Video
28
Blown Film Extrusion Process for Extrusion of LDPE | Blown Film Extrusion Machine Manufacturers
Blown Film Extrusion Process for Extrusion of LDPE | Blown Film Extrusion Machine Manufacturers
::2014/10/08::
Play Video
29
high density polyethylene (HDPE) fittings and fusion machinery
high density polyethylene (HDPE) fittings and fusion machinery
::2014/04/29::
Play Video
30
Crystalisation of High Density Polyethylene (HDPE)
Crystalisation of High Density Polyethylene (HDPE)
::2009/05/18::
Play Video
31
Engineering Jobs Process Production LDPE Mfg Plant Lake Charles LA
Engineering Jobs Process Production LDPE Mfg Plant Lake Charles LA
::2014/11/01::
Play Video
32
What is HDPE?
What is HDPE?
::2009/09/10::
Play Video
33
Enviro-Cone Introduction
Enviro-Cone Introduction
::2014/11/05::
Play Video
34
Poly Bags -Plastic Polyethylene Bags -WHITTCO Industrial Supplies
Poly Bags -Plastic Polyethylene Bags -WHITTCO Industrial Supplies
::2014/09/22::
Play Video
35
Ldpe Granules Buyers & Suppliers
Ldpe Granules Buyers & Suppliers
::2013/07/30::
Play Video
36
Polyethylene Bagging Film
Polyethylene Bagging Film
::2013/05/01::
Play Video
37
LDPE and HDPE Mechanical Behavior
LDPE and HDPE Mechanical Behavior
::2011/06/22::
Play Video
38
Enviro-Cone Cold Test
Enviro-Cone Cold Test
::2014/11/05::
Play Video
39
=D Fracture of Medium Density Polyethylene
=D Fracture of Medium Density Polyethylene
::2013/02/01::
Play Video
40
LDPE and HDPE
LDPE and HDPE
::2014/10/16::
Play Video
41
Grinded HDPE Black Scrap, LDPE Film Scrap, Pet Plastic Bottle
Grinded HDPE Black Scrap, LDPE Film Scrap, Pet Plastic Bottle
::2013/07/30::
Play Video
42
Global Polyethylene  Market Size, Analysis, Share, Research, Growth, Trends  2014-2018
Global Polyethylene Market Size, Analysis, Share, Research, Growth, Trends 2014-2018
::2014/09/25::
Play Video
43
Enviro-Cone Heat Test
Enviro-Cone Heat Test
::2014/11/05::
Play Video
44
Polymer Structures
Polymer Structures
::2012/12/06::
Play Video
45
Gravity separation of common polymers
Gravity separation of common polymers
::2012/10/28::
Play Video
46
ICIS polyethylene overview
ICIS polyethylene overview
::2012/09/19::
Play Video
47
Prodeso by Progress Profiles
Prodeso by Progress Profiles
::2015/02/04::
Play Video
48
Bharat Book Presents : India Polyethylene Report 2013   Demand , Supply , Import Export
Bharat Book Presents : India Polyethylene Report 2013 Demand , Supply , Import Export
::2014/03/14::
Play Video
49
VERSAPIPE FUSION | Butt and Electro Fusion "SUMMARIZED"
VERSAPIPE FUSION | Butt and Electro Fusion "SUMMARIZED"
::2014/01/02::
Play Video
50
Stretch hood pallet wrapper / ClearView Pack - Water Heaters - MSK
Stretch hood pallet wrapper / ClearView Pack - Water Heaters - MSK
::2014/07/01::
NEXT >>
RESULTS [ .. ]
From Wikipedia, the free encyclopedia
Jump to: navigation, search
LDPE has SPI resin ID code 4

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 but breakable.[citation needed]

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, since its molecules are less tightly packed and less crystalline because of the side branches, its density is lower. LDPE contains the chemical elements carbon and hydrogen.

Chemical resistance[edit]

Applications[edit]

A GEECO bowl, c.1950, still used in 2014.

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]

2010_MSW_Tables_and_Figures_508.pdf. epa.gov

Wikipedia content is licensed under the GFDL License
Powered by YouTube
MASHPEDIA
LEGAL
  • Mashpedia © 2015