Influence of Processing Additives on Adhesive Properties of Surface-Modified Low-Density Polyethylene

2004 ◽  
Vol 289 (3) ◽  
pp. 269-274 ◽  
Author(s):  
Igor Novák ◽  
Štěpán Florián
Keyword(s):  
Low Density Polyethylene ◽  
Low Density ◽  
Adhesive Properties ◽  
Surface Modified

Surface and Adhesive Properties of Low-Density Polyethylene after Radiation Cross-Linking

2014 ◽  
Vol 606 ◽  
pp. 265-268 ◽  
Author(s):  
Martin Bednarik ◽  
David Manas ◽  
Miroslav Manas ◽  
Martin Ovsik ◽  
Jan Navratil ◽  
...  
Keyword(s):  
Electron Beam ◽  
High Performance ◽  
Chemical Properties ◽  
Low Density Polyethylene ◽  
Cross Linking ◽  
Low Density ◽  
X Rays ◽  
Radiation Processing ◽  
Adhesive Properties ◽  
Γ Rays

Radiation cross-linking gives inexpensive commodity plastics and technical plastics the mechanical, thermal, and chemical properties of high-performance plastic. This upgrading of the plastics enables them to be used in conditions which they would not be able to with stand otherwise. The irradiation cross-linking of thermoplastic materials via electron beam or cobalt 60 (gammy rays) is performed separately, after processing. Generally, ionizing radiation includes accelerated electrons, gamma rays and X-rays. Radiation processing with an electron beam offers several distinct advantages when compared with other radiation sources, particularly γ-rays and x-rays. The process is very fast, clean and can be controlled with much precision. There is no permanent radioactivity since the machine can be switched off. In contrast to γ-rays and x-rays, the electron beam can steered relatively easily, thus allowing irradiation of a variety of physical shapes. The energy-rich beta rays trigger chemical reactions in the plastics which results in networking of molecules (comparable to the vulcanization of rubbers which has been in industrial use for so long). The energy from the rays is absorbed by the material and cleavage of chemical bonds takes place. This releases free radicals which in next phase from desired molecular bonds. This article describes the effect of radiation cross-linking on the surface and adhesive properties of low-density polyethylene.

Gas transport in surface-modified low-density polyethylene films with acrylic acid as a grafting agent

2006 ◽  
Vol 44 (19) ◽  
pp. 2828-2840 ◽  
Author(s):  
Vanina Costamagna ◽  
Miriam Strumia ◽  
Mar López-González ◽  
Evaristo Riande
Keyword(s):  
Acrylic Acid ◽  
Gas Transport ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Polyethylene Films ◽  
Surface Modified

Mechanical, sorption and adhesive properties of composites based on low density polyethylene filled with date palm wood powder

2014 ◽  
Vol 53 ◽  
pp. 29-37 ◽  
Author(s):  
Mariam A. AlMaadeed ◽  
Zuzana Nógellová ◽  
Matej Mičušík ◽  
Igor Novák ◽  
Igor Krupa
Keyword(s):  
Date Palm ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Wood Powder ◽  
Adhesive Properties ◽  
Properties Of Composites

scholarly journals Morphological and Chemical Analysis of Low-Density Polyethylene Crystallized on Carbon and Clay Nanofillers

Polymers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1558
Author(s):  
Dilip Depan ◽  
William Chirdon ◽  
Ahmed Khattab
Keyword(s):  
Low Density Polyethylene ◽  
Low Density ◽  
Functional Design ◽  
X Ray Diffraction ◽  
Polymer Crystals ◽  
Solution Crystallization ◽  
Crystallization Method ◽  
Transmission Electron ◽  
Surface Modified ◽  
Heterogeneous Crystallization

Interest in carbon and clay-based nanofillers has grown in recent years. The crystallization behavior of low-density polyethylene (LDPE) was studied using a variety of notable nanofillers used in engineering applications and prepared using a solution crystallization method. Carbon nanotubes (CNTs), graphene oxide nano-platelets, clay (montmorillonite), and modified clay (surface-modified with trimethyl stearyl ammonium) were used to induce heterogeneous crystallization of LDPE. The crystallized LDPE samples, imaged using scanning and transmission electron microscopy, revealed different microstructures for each nanohybrid system, indicating these various nanofillers induce LDPE lamellae ordering. The underlying interactions between polymer and nanofiller were investigated using FTIR spectroscopy. X-ray diffraction (XRD) was used to determine crystallinity. This work examines how the differences in morphology and chemical structure of the nanofillers induce changes in the nucleation and growth of polymer crystals. These results will provide guidance on functional design of nano-devices with controlled properties.

Biodegradation of low density polyethylene/starch films exposed to soil burial

2009 ◽  
Vol 34 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Souad Djellalia ◽  
Nassima Benmahmoud ◽  
Tahar Sadoun
Keyword(s):  
Low Density Polyethylene ◽  
Low Density ◽  
Soil Burial ◽  
Starch Films
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