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1
Polyethylene PE Film - How it
Polyethylene PE Film - How it's made
::2012/11/30::
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2
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::
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3
What is LDPE?
What is LDPE?
::2009/10/07::
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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::
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5
MYOG low-density polyethylene (LDPE) tarptent - Part 2
MYOG low-density polyethylene (LDPE) tarptent - Part 2
::2010/08/16::
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6
Wicketed Bread Bags -  Low Density Polyethylene
Wicketed Bread Bags - Low Density Polyethylene
::2014/07/23::
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7
MYOG low-density polyethylene (LDPE) tarptent - Part 1
MYOG low-density polyethylene (LDPE) tarptent - Part 1
::2010/08/16::
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8
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::
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9
Low Density Polyethylene Disposable Gloves 500Box/2Carton/20Case
Low Density Polyethylene Disposable Gloves 500Box/2Carton/20Case
::2012/07/29::
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10
Crystalisation of Low Density Polyethylene (LDPE)
Crystalisation of Low Density Polyethylene (LDPE)
::2009/05/18::
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11
Polymer Detectives - Science Olympiad - Video 2 - HDPE, LDPE, PP
Polymer Detectives - Science Olympiad - Video 2 - HDPE, LDPE, PP
::2012/01/09::
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12
Double colors strip Film Blowing machine(HDPE / LDPE film)
Double colors strip Film Blowing machine(HDPE / LDPE film)
::2012/10/29::
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13
Hdpe Scrap,Hdpe Waste,High Density Polyethylene Scrap
Hdpe Scrap,Hdpe Waste,High Density Polyethylene Scrap
::2013/07/30::
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14
Das Band - Fine Polyethylene Extruder.
Das Band - Fine Polyethylene Extruder.
::2013/01/03::
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15
Polyethylene
Polyethylene
::2010/11/30::
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16
hdpe high density polyethylene
hdpe high density polyethylene
::2014/04/04::
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17
Gravity separation of common polymers
Gravity separation of common polymers
::2012/10/28::
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18
Polyolefin
Polyolefin's (Mainly LDPE / PP) Coating Lamination Plant
::2014/08/21::
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19
LDPE or Glass,which is better?Choose!
LDPE or Glass,which is better?Choose!
::2010/08/21::
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20
Polyethylene Bagging Film
Polyethylene Bagging Film
::2013/05/01::
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21
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::
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22
Grinded HDPE Black Scrap, LDPE Film Scrap, Pet Plastic Bottle Ahmedabad
Grinded HDPE Black Scrap, LDPE Film Scrap, Pet Plastic Bottle Ahmedabad
::2013/07/30::
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23
POLYCO - Thank You (low res)
POLYCO - Thank You (low res)
::2014/06/26::
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24
ICIS polyethylene overview
ICIS polyethylene overview
::2012/09/19::
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25
HybriD scan data gallery NT-MDT by Sergey Magonov
HybriD scan data gallery NT-MDT by Sergey Magonov
::2014/01/31::
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26
XyCom TPE Demo June 2012
XyCom TPE Demo June 2012
::2013/03/27::
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27
cooling tower fill forming machine
cooling tower fill forming machine
::2013/09/24::
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28
Handgards® Poly & Specialty Gloves
Handgards® Poly & Specialty Gloves
::2013/05/16::
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29
agricultural trays
agricultural trays
::2013/10/16::
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30
pvc fills for cooling tower
pvc fills for cooling tower
::2013/09/25::
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31
Traffic Safety Service
Traffic Safety Service's Type 3 Breakaway Barricade Product Information Video
::2014/05/02::
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32
FXR - Brodie Toffan & FAST Floatation Assistance Technology
FXR - Brodie Toffan & FAST Floatation Assistance Technology
::2014/05/12::
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33
FXR FAST Floatation Assistance Technology
FXR FAST Floatation Assistance Technology
::2014/05/12::
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34
High Density Polyethylene Mortar tube
High Density Polyethylene Mortar tube
::2013/02/13::
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35
test tube rack | Blood Tube Rack | blood tube stands | stack able test tube trays
test tube rack | Blood Tube Rack | blood tube stands | stack able test tube trays
::2013/08/26::
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36
FRANCIS Tristan, Polyethylene VLOG
FRANCIS Tristan, Polyethylene VLOG
::2014/04/26::
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37
vacuum forming
vacuum forming
::2013/07/23::
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38
Polymer Structures
Polymer Structures
::2012/12/06::
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39
Ballpen trays blister packing
Ballpen trays blister packing
::2011/08/30::
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40
=D Fracture of Medium Density Polyethylene
=D Fracture of Medium Density Polyethylene
::2013/02/01::
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41
abs shell chair
abs shell chair
::2013/07/06::
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42
abs thick sheet vacuum forming products
abs thick sheet vacuum forming products
::2013/06/09::
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43
6 lines sealing and cutting bag machine-- Zhejiang Zhuxin Machinery Co.,ltd.
6 lines sealing and cutting bag machine-- Zhejiang Zhuxin Machinery Co.,ltd.
::2012/09/25::
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44
Graf Gs IX Gloves
Graf Gs IX Gloves
::2012/02/29::
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45
Irrigation Booms HO
Irrigation Booms HO
::2011/12/23::
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46
New and Improved Fastfoot®
New and Improved Fastfoot®
::2012/12/18::
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47
High Density Polyethylene
High Density Polyethylene
::2012/09/24::
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48
Blister trays, cosmetic trays, industrial trays for food & cosmetic packing
Blister trays, cosmetic trays, industrial trays for food & cosmetic packing
::2011/08/19::
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49
Qapco- Qatar Petroleum Company New Brand Identity Launch (2008)
Qapco- Qatar Petroleum Company New Brand Identity Launch (2008)
::2013/06/02::
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50
Polyolefin
Polyolefin's (Mainly LDPE / PP) Coating Lamination Plant
::2014/08/20::
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RESULTS [51 .. 101]
From Wikipedia, the free encyclopedia
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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 2009 the worldwide LDPE market reached a volume of US$22.2 billion (15.9 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

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