Effect of sol–gel derived nano-silica and organic peroxide on the thermal and mechanical properties of low-density polyethylene/wood flour composites

The potential utilization of melamine impregnated paper (MIP) waste in thermoplastic composites was investigated. Composites were also manufactured utilizing wood flour (WF) at the same filler rates for comparison. The composites were manufactured using a compression molding method. The effects of filler type and filler rate on the mechanical properties of low-density polyethylene (LDPE)-based composites were evaluated. Mechanical properties, such as tensile and flexural strengths, were determined in accordance with ASTM D638 (2001) and ASTM D790 (2003), respectively. Results showed that filler type and filler content had significant effects on all mechanical properties investigated. Both fillers improved all mechanical properties except for tensile strength and elongation at break of LDPE. In conclusion, MIP waste has a potential to be utilized in thermoplastic-based composite manufacturing and might generate some economic and environmental benefits.

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Preparation of Linear Low-density Polyethylene/Treated Date Palm Leaflet Green Composites and Investigation of their Thermal and Mechanical Properties

Oriental Journal Of Chemistry ◽

10.13005/ojc/350123 ◽

2019 ◽

Vol 35 (1) ◽

pp. 200-206

Author(s):

Mashael Alshabanat

Keyword(s):

Mechanical Properties ◽

Tensile Testing ◽

Date Palm ◽

Low Cost ◽

Gum Arabic ◽

Renewable Resource ◽

Low Density Polyethylene ◽

Low Density ◽

Thermal And Mechanical Properties ◽

Linear Low Density Polyethylene

This work aims to develop green linear low-density polyethylene (LLDPE) composites that are commercially viable due to the low cost of the date palm leaflet filler, which is a local renewable resource. The filler was naturally treated with gum arabic solution. FT-IR, XRD, and SEM techniques were used to characterize the samples. The thermal and mechanical properties were measured by TGA, DSC, and tensile testing. The results showed noticeable changes in the properties of the composites compared to those of the original LLDPE sample. TGA revealed that the composite started thermally. The composites started thermally degrading before the original polymer, owing to the degradation of the natural components in the filler. The findings from DSC suggested that the crystallinity was affected. The tensile testing results indicated that the composites were appropriate for applications requiring low tensile strength at break and high Young’s modulus. A comparison of these results with earlier ones exhibited that the basic additives in the polymer may have an effect on the filler performance.

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INFLUENCE OF COCONUT SHELL ADDITION ON PHYSICO-MECHANICAL PROPERTIES OF WOOD PLASTIC COMPOSITES1

Revista Árvore ◽

10.1590/1806-90882017000400012 ◽

2018 ◽

Vol 41 (4) ◽

Author(s):

Éverton Hillig ◽

Ignacio Bobadilla ◽

Ademir José Zattera ◽

Érick Agonso Agnes de Lima ◽

Raquel Marchesan

Keyword(s):

Mechanical Properties ◽

Loblolly Pine ◽

High Density Polyethylene ◽

Wood Flour ◽

High Density ◽

Coconut Shell ◽

Low Density Polyethylene ◽

Low Density ◽

Cellulosic Material ◽

Thermoplastic Matrix

ABSTRACT In this study, composites with three types of thermoplastic matrix and cellulosic material in a proportion of 40% were produced. The three thermoplastic matrices were high density polyethylene (HDPE), polypropylene (PP) and low density polyethylene (LDPE), and the cellulosic materials were pure wood flour (Pinus taeda L) or a mixture of wood flour and coconut shell flour (Cocus nucifera L) in equal ratios. The objective was to evaluate the influence of addition of coconut shell on the physico-mechanical properties (density, strength and rigidity) and the distribution of the cellulosic material in the thermoplastic matrix of the manufactured composites. It was found that the composites had a satisfactory distribution of wood flour in thermoplastic matrices, but the addition of coconut shell promoted bubble formation in the resulting pieces and, thus, interfered with the material properties. The use of a coupling agent promoted interfacial adhesion (cellulose - thermoplastic matrix), which was better in high density polyethylene composites, followed by polypropylene and low density polyethylene. In general, the coconut shell addition caused a decrease of all properties compared to composites made with Loblolly Pine. In addition, the interactions between thermoplastic type and cellulosic matrix type have been statistically confirmed, which caused variations in the studied properties

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Study of the thermal and mechanical properties of blown films of high- and low-density polyethylene blends

Journal of Applied Polymer Science ◽

10.1002/app.36246 ◽

2011 ◽

Vol 125 (1) ◽

pp. 755-767 ◽

Cited By ~ 14

Author(s):

Mohsen Mohammadi ◽

Ali Akbar Yousefi ◽

Morteza Ehsani

Keyword(s):

Mechanical Properties ◽

Low Density Polyethylene ◽

Low Density ◽

Thermal And Mechanical Properties ◽

Blown Films ◽

Polyethylene Blends

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Thermal and mechanical properties of linear low-density polyethylene/low-density polyethylene/wax ternary blends

Journal of Applied Polymer Science ◽

10.1002/app.21642 ◽

2005 ◽

Vol 96 (5) ◽

pp. 1748-1755 ◽

Cited By ~ 21

Author(s):

A. S. Luyt ◽

M. J. Hato

Keyword(s):

Mechanical Properties ◽

Low Density Polyethylene ◽

Low Density ◽

Thermal And Mechanical Properties ◽

Ternary Blends ◽

Linear Low Density Polyethylene ◽

Polyethylene Wax

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Thermal and mechanical properties of nanocomposites based on polyethylene and Mg/Al hydrotalcite

MRS Proceedings ◽

10.1557/opl.2016.48 ◽

2016 ◽

Vol 1817 ◽

Author(s):

L.Y. Jaramillo ◽

J.C. Posada-Correa ◽

E. Pabón-Gelves ◽

E. Ramos-Ramírez ◽

N.L. Gutiérrez-Ortega

Keyword(s):

Mechanical Properties ◽

Thermal Stability ◽

Thermal Properties ◽

Structural Analysis ◽

Tensile Tests ◽

Low Density Polyethylene ◽

Low Density ◽

Melt Blending ◽

Thermal And Mechanical Properties ◽

Linear Low Density Polyethylene

ABSTRACTIn this work there was studied the effect of nano-Mg/Al hydrotalcite (NHT) as filler on maleic anhydride grafted linear low density polyethylene (LLDPE-g-MA). NHT was synthesized by the coprecipitation method with a ratio of Mg/Al=6 and nanocomposites were prepared using 1, 3 and 5 %wt of filler via melt-blending.Morphological and structural analysis of NHT were performed and for nanocomposites, tensile tests and thermal properties were measured. Results showed that filler was well dispersed in the LLDPE matrix, mechanical properties were enhanced in most of the cases and thermal stability improvements were achieved in the nanocomposites.

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