♫ FREE INSTANT MUSIC PLAYER: Select one artist from the list below
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
Low-density polyethylene
Low-density polyethylene
::2014/10/10::
Play Video
5
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
6
Crystalisation of Low Density Polyethylene (LDPE)
Crystalisation of Low Density Polyethylene (LDPE)
::2009/05/18::
Play Video
7
Wholesale Poly Tubing Roll - 100% Virgin Low Density Polyethylene
Wholesale Poly Tubing Roll - 100% Virgin Low Density Polyethylene
::2014/12/21::
Play Video
8
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
9
Custom Poly Tubing - From 100% Virgin Low Density Polyethylene
Custom Poly Tubing - From 100% Virgin Low Density Polyethylene
::2015/03/07::
Play Video
10
MYOG low-density polyethylene (LDPE) tarptent - Part 1
MYOG low-density polyethylene (LDPE) tarptent - Part 1
::2010/08/16::
Play Video
11
Polymer Detectives - Science Olympiad - Video 2 - HDPE, LDPE, PP
Polymer Detectives - Science Olympiad - Video 2 - HDPE, LDPE, PP
::2012/01/09::
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
Wicketed Bread Bags -  Low Density Polyethylene
Wicketed Bread Bags - Low Density Polyethylene
::2014/07/23::
Play Video
14
Low Density Polyethylene Disposable Gloves 500Box/2Carton/20Case
Low Density Polyethylene Disposable Gloves 500Box/2Carton/20Case
::2012/07/29::
Play Video
15
LDPE Ink Pen
LDPE Ink Pen
::2014/12/21::
Play Video
16
Low Density Polyethylene (LDPE) Uses
Low Density Polyethylene (LDPE) Uses
::2014/10/26::
Play Video
17
Low Density Polyethylene (LDPE) Uses
Low Density Polyethylene (LDPE) Uses
::2015/01/16::
Play Video
18
Uses Of Low-Density Polyethylene
Uses Of Low-Density Polyethylene
::2014/12/22::
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
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
22
hdpe high density polyethylene
hdpe high density polyethylene
::2014/04/04::
Play Video
23
Polyolefin
Polyolefin's (Mainly LDPE / PP) Coating Lamination Plant
::2014/08/20::
Play Video
24
HIGH DENSITY POLYETHYLENE by Khushi Enterprises
HIGH DENSITY POLYETHYLENE by Khushi Enterprises
::2013/10/22::
Play Video
25
Das Band - Fine Polyethylene Extruder.
Das Band - Fine Polyethylene Extruder.
::2013/01/03::
Play Video
26
Hdpe Scrap,Hdpe Waste,High Density Polyethylene Scrap
Hdpe Scrap,Hdpe Waste,High Density Polyethylene Scrap
::2013/07/30::
Play Video
27
Polyethylene
Polyethylene
::2010/11/30::
Play Video
28
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
29
Double colors strip Film Blowing machine(HDPE / LDPE film)
Double colors strip Film Blowing machine(HDPE / LDPE film)
::2012/10/29::
Play Video
30
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
31
GE
GE's LDPE hypercompressor
::2015/01/30::
Play Video
32
Crystalisation of High Density Polyethylene (HDPE)
Crystalisation of High Density Polyethylene (HDPE)
::2009/05/18::
Play Video
33
=D Fracture of Medium Density Polyethylene
=D Fracture of Medium Density Polyethylene
::2013/02/01::
Play Video
34
What is HDPE?
What is HDPE?
::2009/09/10::
Play Video
35
Industrial Film LDPE Film Recycling Line Malaysia
Industrial Film LDPE Film Recycling Line Malaysia
::2013/09/04::
Play Video
36
Poly Bags -Plastic Polyethylene Bags -WHITTCO Industrial Supplies
Poly Bags -Plastic Polyethylene Bags -WHITTCO Industrial Supplies
::2014/09/22::
Play Video
37
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
38
Secondary granule PE-100, PE-80, PS,PP,LDPE,HDPE.wmv
Secondary granule PE-100, PE-80, PS,PP,LDPE,HDPE.wmv
::2012/05/05::
Play Video
39
Enviro-Cone Introduction
Enviro-Cone Introduction
::2014/11/05::
Play Video
40
Polyethylene Bagging Film
Polyethylene Bagging Film
::2013/05/01::
Play Video
41
( LDPE ) MINI TYPE AIR COOLING  PLASTIC WASTE RECYCLE MACHINE (CT-RZ-85A)
( LDPE ) MINI TYPE AIR COOLING PLASTIC WASTE RECYCLE MACHINE (CT-RZ-85A)
::2011/02/11::
Play Video
42
LDPE and HDPE
LDPE and HDPE
::2014/10/16::
Play Video
43
Enviro-Cone Cold Test
Enviro-Cone Cold 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
Enviro-Cone Heat Test
Enviro-Cone Heat Test
::2014/11/05::
Play Video
47
ICIS polyethylene overview
ICIS polyethylene overview
::2012/09/19::
Play Video
48
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
49
Polyethylene Granules,HDPE Granules Manufacturers
Polyethylene Granules,HDPE Granules Manufacturers
::2013/07/30::
Play Video
50
LDPE/HDPE Film Blowing Machine
LDPE/HDPE Film Blowing Machine
::2008/05/25::
NEXT >>
RESULTS [51 .. 101]
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