Heat Degradation of Low Density Poly(ethylene) in Material Recycle

The main objective of this study was to enhance the rate of UV and biodegradation of polyethylene by incorporating biodegradable materials and prooxidants. Prooxidants such as transition metal complexes are capable of initiating photooxidation and polymer chain cleavage, rendering the product more susceptible to biodegradation. In this work, the effect of (1) a metallic photoinitiator, cobalt stearate, and (2) different combinations of cobalt stearate and vegetable oil on the photooxidative degradation of linear low-density poly(ethylene)-poly(vinyl alcohol) (LLDPE/PVA) blend films has been investigated. For this, film-grade LLDPE was blended with different proportions of PVA. PVA is widely used in the industrial field, and recently it has attracted increasing attention as a water-soluble biodegradable polymer. Cobalt stearate and vegetable oil were added to the blends as prooxidants. The blends were prepared by melt mixing in a Thermo HAAKE Polylab system. Thin films containing these additives were prepared by a subsequent compression moulding process. The effect of UV exposure on LLDPE/PVA films in the presence as well as absence of these additives was investigated. Tensile properties, FTIR spectra, and scanning electron microscopy (SEM) were employed to investigate the degradation behaviour. It was found

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Improvement of Adhesion Properties of Low Density Polyethylene Sheets and Poly (ethylene terephthalate) Films by Various Surface Treatments.

KOBUNSHI RONBUNSHU ◽

10.1295/koron.57.708 ◽

2000 ◽

Vol 57 (11) ◽

pp. 708-714 ◽

Cited By ~ 1

Author(s):

Toshio OGAWA ◽

Tomoyuki SATOU ◽

Satoshi OSAWA

Keyword(s):

Ethylene Terephthalate ◽

Surface Treatments ◽

Low Density Polyethylene ◽

Low Density ◽

Adhesion Properties ◽

Poly Ethylene Terephthalate ◽

Poly Ethylene

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Identification of LDPE Grades Focusing on Specific CH2 Raman Vibration Modes

International Journal of Spectroscopy ◽

10.1155/2013/720598 ◽

2013 ◽

Vol 2013 ◽

pp. 1-6 ◽

Cited By ~ 3

Author(s):

Richard Jumeau ◽

Patrice Bourson ◽

Michel Ferriol ◽

François Lahure ◽

Marc Ponçot ◽

...

Keyword(s):

Differential Scanning Calorimetry ◽

Raman Spectroscopy ◽

Vibrational Spectroscopy ◽

Phenomenological Model ◽

Low Density ◽

Vibration Modes ◽

Scanning Calorimetry ◽

Lamella Thickness ◽

Poly Ethylene

The possibilities of applications of vibrational spectroscopy techniques (Raman spectroscopy) in the analysis and characterization of polymers are more and more used and accurate. In this paper, our purpose is to characterize Low Density Poly(Ethylene) (LDPE) grades by Raman spectroscopy and in particular with CH2 Raman vibration modes. With temperature measurements, we determine different amorphous and crystalline Raman assignments. From these results and on the basis of the evolution of CH2 bending Raman vibration modes, we develop a phenomenological model in correlation with Differential Scanning Calorimetry and in particular with crystalline lamella thickness determination.

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Compatibilization of blends of poly(ethylene terephthalate) and linear low density polyethylene with the ionomer of poly(ethylene-co-methacrylic acid)

Polymer ◽

10.1016/0032-3861(94)90538-x ◽

1994 ◽

Vol 35 (17) ◽

pp. 3624-3630 ◽

Cited By ~ 41

Author(s):

Nikos K. Kalfoglou ◽

Dimitrios S. Skafidas ◽

Dionissia D. Sotiropoulou

Keyword(s):

Methacrylic Acid ◽

Ethylene Terephthalate ◽

Low Density Polyethylene ◽

Low Density ◽

Linear Low Density Polyethylene ◽

Poly Ethylene Terephthalate ◽

Poly Ethylene

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Cable and Wire Application: Adoption of Nanomagnesium Hydroxide Blended with LDPE/EVA for Mechanical and Physical Properties

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.701.202 ◽

2013 ◽

Vol 701 ◽

pp. 202-206

Author(s):

Ahmad Aroziki Abdul Aziz ◽

Sakinah Mohd Alauddin ◽

Ruzitah Mohd Salleh ◽

Mohammed Iqbal Shueb

Keyword(s):

Mechanical Properties ◽

Physical Properties ◽

Melt Flow Index ◽

Low Density Polyethylene ◽

Flow Index ◽

Low Density ◽

Elongation At Break ◽

Mechanical And Physical Properties ◽

Poly Ethylene ◽

Loading Amount

Effect of nanoMagnesium Hydroxide (MH) nloading amount to the mechanical and physical properties of Low Density Polyethylene (LDPE)/ Poly (ethylene-co vinyl acetate)(EVA) nanocomposite has been described and investigated in this paper. The tensile strength results show that increased amount of nanofiller will decrease and deteriorate the mechanical properties. The elongation at break decreased continuously with increasing loading of nanofiller. Generally, mechanical properties become poorer as loading amount increase. Melt Flow Index values for physical properties also provide same trend as mechanical properties results. Increase filler amount reduced MFI values whereby increased resistance to the flow.

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