Low Density Polyethylene
LDPE
9/21/2008
“Low-density polyethylene (LDPE) is a thermoplastic made
from oil. It was the first grade of polyethylene, produced in 1933 by Imperial
Chemical Industries (ICI) using a high pressure process via free radical
polymerisation. Its manufacture employs the same method today. LDPE is commonly
recycled, and has the number "4" as its recycling symbol.”
Wikipedia:
http://en.wikipedia.org/wiki/LDPE (11/14/2008)
Low Density Polyethylene (LDPE) Film
Warning: Sometimes the older links no longer work. Go to the US Patent Patent number search page, copy the Patent number into the search box and search. For the articles, use your browser to go the Journal site.
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Notes
“LDPE is defined by a density range of 0.910 - 0.940 g/cm³.
It is unreactive 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 to the degree of being almost
unbreakable.”
Wikipedia:
http://en.wikipedia.org/wiki/LDPE (11/14/2008)
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“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.”
Wikipedia:
http://en.wikipedia.org/wiki/LDPE (11/14/2008)
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Review Articles
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US Patents
9/30/2008
7,429,635
Preparation of ultra high molecular weight linear low density polyethylene
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Journal Articles
1/16/2008
Evidence of a monoclinic-like amorphous phase in composites of LDPE with
spherical, fibrous and laminar nanofillers as studied by infrared spectroscopy
(30-39) European
Polymer Journal 45 #1 (2009)
Extrusion coating performances of iPP/LDPE
blends
(p 3121-3127)
Journal of Applied Polymer Science 111 #6 (2009)
Abstract
1/9/2009
167[2008] Stabilization effect of polypyrrole in gamma-irradiated low
density polyethylene
e-Polymers
(12/31/2008) (172)
[Abstract]
11/21/2008
Space charge and electroluminescence characteristics of thermally aged LDPE
films
(2735-2739)
Applied Surface Science 255 #5 Part 2 (2008)
10/31/1008
Zn2+ release behavior and surface characteristics of Zn/LDPE
nanocomposites and ZnO/LDPE nanocomposites in simulated uterine solution
(3319-3326)
Journal of Materials Science: Materials in Medicine 19 #11 (2008)
10/24/2008
Experimental determination of
concentration-dependent carbon dioxide diffusivity in LDPE
(p 380-387)
Journal of Applied Polymer Science 111 #1 (2009)
Abstract
10/24/2008
Biodegradability and degrading microbes of
low-density polyethylene
(p 551-559)
Journal of Applied Polymer Science 111 #1 (2009)
Abstract
10/3/2008
Surface Modification of Low Density Polyethylene (LDPE) Film Using Corona
Discharge Plasma for Technological Applications
( 1425-1442)
Journal of Adhesion Science and Technology 22, #13 (2008)
Biodegradation of low-density polyethylene-banana starch
films
(p 3464-3472)
Journal of Applied Polymer Science 110 #6 (2008)
Abstract
9/26/2008
128[2008] Antimicrobial activity of nanocomposites:
poly(amide) 6 and low density poly(ethylene) filled with zinc oxide
e-Polymers (9/24/2008) (128)
[Abstract]
120[2008] Mechanical properties and morphology of low
density polyethylene/polydimethylsiloxane immiscible blends: modeling and
influence of curing agent
e-Polymers (9/24/2008) (128)
[Abstract]
Evolution of Products Generated during the Dynamic Pyrolysis
of LDPE and HDPE over HZSM5
(2917 - 2924)
Energy & Fuels 22 #5 (2008)
Abstract
9/19/2008
Improving low-density polyethylene/poly(ethylene terephthalate) blends with
graft copolymers
(p 1929-1937)
Journal of Applied Polymer Science 110 #4 (2008)
Abstract
9/12/2008
Influence of the repeated extrusion on the degradation of polyethylene.
Structural changes in low density polyethylene
(2652-2658)
European Polymer Journal 44 #8 (2008)
Capillary Extrusion Studies of LLDPE/LDPE Blends: Effects of Manufacturing
Technology of LLDPE and Long Chain Branching
(385-394)
International Polymer Processing #4 (2008)
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Roger D. Corneliussen
Editor
Telephone: 610 883 0055
rcorneliussen@4spe.org
www.maropolymeronline.com
Copyright 2008 by Roger D. Corneliussen