1
7. production of low density and high density polyethylene (HSC chemistry)
7. production of low density and high density polyethylene (HSC chemistry)
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What is LDPE?
What is LDPE?
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Polyethylene PE Film - How it
Polyethylene PE Film - How it's made
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Low-density polyethylene
Low-density polyethylene
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5
Bags, Film, Sheet, high and low density polyethylene washing and drying Line
Bags, Film, Sheet, high and low density polyethylene washing and drying Line
DATE: 2012/05/02::
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110,000 Ton/Year Low Density Polyethylene (LDPE) Plant for Sale
110,000 Ton/Year Low Density Polyethylene (LDPE) Plant for Sale
DATE: 2013/07/03::
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Wholesale Poly Tubing Roll - 100% Virgin Low Density Polyethylene
Wholesale Poly Tubing Roll - 100% Virgin Low Density Polyethylene
DATE: 2014/12/21::
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Low Density Polyethylene Plastic Bags - HgCdTe MCV
Low Density Polyethylene Plastic Bags - HgCdTe MCV
DATE: 2015/04/30::
9
MYOG low-density polyethylene (LDPE) tarptent - Part 1
MYOG low-density polyethylene (LDPE) tarptent - Part 1
DATE: 2010/08/16::
10
Polymer Detectives - Science Olympiad - Video 2 - HDPE, LDPE, PP
Polymer Detectives - Science Olympiad - Video 2 - HDPE, LDPE, PP
DATE: 2012/01/09::
11
Low Density Polyethylene (LDPE) Uses
Low Density Polyethylene (LDPE) Uses
DATE: 2014/10/26::
12
Crystalisation of Low Density Polyethylene (LDPE)
Crystalisation of Low Density Polyethylene (LDPE)
DATE: 2009/05/18::
13
Wicketed Bread Bags -  Low Density Polyethylene
Wicketed Bread Bags - Low Density Polyethylene
DATE: 2014/07/23::
14
Speed Solar Sun 49120 Solar Pool Heater Low-Density Polyethylene 0.7 x 3 m for Pools with Capacity
Speed Solar Sun 49120 Solar Pool Heater Low-Density Polyethylene 0.7 x 3 m for Pools with Capacity
DATE: 2015/04/05::
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MYOG low-density polyethylene (LDPE) tarptent - Part 2
MYOG low-density polyethylene (LDPE) tarptent - Part 2
DATE: 2010/08/16::
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Vestil BTLN1 Narrow Mouth Low Density Polyethylene LDPE Round Plastic  Product images
Vestil BTLN1 Narrow Mouth Low Density Polyethylene LDPE Round Plastic Product images
DATE: 2015/05/09::
17
Speed Solar Sun 49123 Solar Collector Low-Density Polyethylene for 0.7 x 6 m for Pools with
Speed Solar Sun 49123 Solar Collector Low-Density Polyethylene for 0.7 x 6 m for Pools with
DATE: 2015/04/06::
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Worldwide Low Density Polyethylene (LDPE) Industry Forecast to 2020
Worldwide Low Density Polyethylene (LDPE) Industry Forecast to 2020
DATE: 2015/05/14::
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Low Density Polyethylene (LDPE) Uses
Low Density Polyethylene (LDPE) Uses
DATE: 2015/01/16::
20
LDPE Ink Pen
LDPE Ink Pen
DATE: 2014/12/21::
21
hdpe high density polyethylene
hdpe high density polyethylene
DATE: 2014/04/04::
22
Vestil BTLWW16BLBL Wide Mouth Low Density Polyethylene LDPE  Top
Vestil BTLWW16BLBL Wide Mouth Low Density Polyethylene LDPE Top
DATE: 2015/05/07::
23
Vestil BTLW8 WideMouth Low Density Polyethylene LDPE Round Plastic Bot Product images
Vestil BTLW8 WideMouth Low Density Polyethylene LDPE Round Plastic Bot Product images
DATE: 2015/05/09::
24
How Safe Is Low-Density Polyethylene?
How Safe Is Low-Density Polyethylene?
DATE: 2015/05/04::
25
Vestil BTLWW16 Wide Mouth Low Density Polyethylene LDPE Round Squeeze  Best
Vestil BTLWW16 Wide Mouth Low Density Polyethylene LDPE Round Squeeze Best
DATE: 2015/05/08::
26
Landscape Analysis on Global Low Density Polyethylene (LDPE) Market 2015-2020
Landscape Analysis on Global Low Density Polyethylene (LDPE) Market 2015-2020
DATE: 2015/04/28::
27
Vestil BTLRC6 Low Density Polyethylene LDPE Round Squeeze Di Top
Vestil BTLRC6 Low Density Polyethylene LDPE Round Squeeze Di Top
DATE: 2015/05/07::
28
Vestil BTLRC8 Low Density Polyethylene LDPE Round Squeeze Di Top List
Vestil BTLRC8 Low Density Polyethylene LDPE Round Squeeze Di Top List
DATE: 2015/05/07::
29
Vestil BTLWN8 NarrowMouth Low Density Polyethylene LDPE Round Squeeze  Best
Vestil BTLWN8 NarrowMouth Low Density Polyethylene LDPE Round Squeeze Best
DATE: 2015/05/08::
30
Vestil BTLRC6LBL Low Density Polyethylene LDPE Round Graduated Dispens Top
Vestil BTLRC6LBL Low Density Polyethylene LDPE Round Graduated Dispens Top
DATE: 2015/05/09::
31
Vestil BTLRC8LBL Low Density Polyethylene LDPE Round Graduated Dispens Best
Vestil BTLRC8LBL Low Density Polyethylene LDPE Round Graduated Dispens Best
DATE: 2015/05/08::
32
Vestil BTLRC4LBL Low Density Polyethylene LDPE Round Graduat Top List
Vestil BTLRC4LBL Low Density Polyethylene LDPE Round Graduat Top List
DATE: 2015/05/07::
33
MAXLINER Floor Mats | Fast Facts
MAXLINER Floor Mats | Fast Facts
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34
HIGH DENSITY POLYETHYLENE by Khushi Enterprises
HIGH DENSITY POLYETHYLENE by Khushi Enterprises
DATE: 2013/10/22::
35
Das Band - Fine Polyethylene Extruder.
Das Band - Fine Polyethylene Extruder.
DATE: 2013/01/03::
36
Hdpe Scrap,Hdpe Waste,High Density Polyethylene Scrap
Hdpe Scrap,Hdpe Waste,High Density Polyethylene Scrap
DATE: 2013/07/30::
37
Double colors strip Film Blowing machine(HDPE / LDPE film)
Double colors strip Film Blowing machine(HDPE / LDPE film)
DATE: 2012/10/29::
38
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
DATE: 2013/05/15::
39
BISSO MARINE - High Density Polyethylene Pipelay Animation
BISSO MARINE - High Density Polyethylene Pipelay Animation
DATE: 2010/05/07::
40
Vacuum forming & thermoforming abs, hdpe, ldpe, pp, polycarbonate, hips, pvc, thick sheet
Vacuum forming & thermoforming abs, hdpe, ldpe, pp, polycarbonate, hips, pvc, thick sheet
DATE: 2011/09/29::
41
=D Fracture of Medium Density Polyethylene
=D Fracture of Medium Density Polyethylene
DATE: 2013/02/01::
42
Polyethylene
Polyethylene
DATE: 2010/11/30::
43
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
DATE: 2014/10/08::
44
LDPE soft pipe extrusion line
LDPE soft pipe extrusion line
DATE: 2012/07/26::
45
Poly Bags -Plastic Polyethylene Bags -WHITTCO Industrial Supplies
Poly Bags -Plastic Polyethylene Bags -WHITTCO Industrial Supplies
DATE: 2014/09/22::
46
LDPE and HDPE Mechanical Behavior
LDPE and HDPE Mechanical Behavior
DATE: 2011/06/22::
47
Polyethylene Bagging Film
Polyethylene Bagging Film
DATE: 2013/05/01::
48
DIY Plastic Molds - how to make a vacuum former EASY
DIY Plastic Molds - how to make a vacuum former EASY
DATE: 2015/04/16::
49
Enviro-Cone Introduction
Enviro-Cone Introduction
DATE: 2014/11/05::
50
Product Spotlight: Color-Coded Polyethylene Flexible Tubing
Product Spotlight: Color-Coded Polyethylene Flexible Tubing
DATE: 2015/05/12::
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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 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
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