Mechanical properties of high density polyethylene matrix composites reinforced with chitosan particles

One type of birch wood plywood by-product: plywood sanding dust (PSD) and recycled high density polyethylene (rHDPE) composites physical mechanical properties (tensile, flexural strength and modulus, impact strength and microhardness), water resistance and fluidity of the composite melts, were evaluated. These studies showed the possibility of the usage of presented by-product as an excellent reinforcement for recycled high density polyethylene matrix. It was observed that the modulus of the tensile for unmodified rHDPE+PSD composites increased up to 2.3 times, the modulus of flexural till 4 times, but the microhardness only 1.4 times. Optimal content of the PSD in recycled high density polyethylene composites could be 50 wt. %. As a coupling agent, the maleated polyethylene (MAPE) for modifying of the rHDPE+50 wt. % PSD composite was used. Due to the MAPE additives, the improvement (30-50 %) of the investigated exploitation properties was observed, but in comparison with unmodified composites the resistance of water increased up to 3.0 times. Optimal content of MAPE in rHDPE+50 wt. % PSD composition could be 3 wt.%.

Download Full-text

Thermal, structural and morphological properties of High Density Polyethylene matrix composites reinforced with submicron agro silica particles and Titania particles

Journal of Taibah University for Science ◽

10.1016/j.jtusci.2016.08.006 ◽

2017 ◽

Vol 11 (4) ◽

pp. 645-653 ◽

Cited By ~ 3

Author(s):

Oluyemi O. Daramola ◽

Isiaka O. Oladele ◽

Benjamin O. Adewuyi ◽

Rotimi Sadiku ◽

Stephen C. Agwuncha

Keyword(s):

High Density Polyethylene ◽

Silica Particles ◽

High Density ◽

Morphological Properties ◽

Matrix Composites ◽

Polyethylene Matrix

Download Full-text

Leather Waste to Enhance Mechanical Performance of High-Density Polyethylene

Polymers ◽

10.3390/polym12092016 ◽

2020 ◽

Vol 12 (9) ◽

pp. 2016 ◽

Cited By ~ 1

Author(s):

Eylem Kiliç ◽

Quim Tarrés ◽

Marc Delgado-Aguilar ◽

Xavier Espinach ◽

Pere Fullana-i-Palmer ◽

...

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

High Density Polyethylene ◽

Mechanical Performance ◽

Low Cost ◽

Impact Resistance ◽

High Density ◽

Polyethylene Matrix ◽

The Matrix ◽

High Impact Strength

Leather buffing dust (BF) is a waste from tannery which is usually disposed on landfills. The interest in using wastes as fillers or reinforcements for composites has raised recently due to environmental concerns. This study investigates the potential use of BF waste as filler for a high density polyethylene matrix (HDPE). A series of HDPE-BF composites, containing filler concentrations ranging from 20 to 50wt%, were formulated, injection molded and tested. The effect of filler contents on the mechanical properties of the composites were evaluated and discussed. Composites with BF contents up to 30wt% improved the tensile strength and Young’s modulus of the matrix, achieving similar mechanical properties to polypropylene (PP). In the case of flexural strength, it was found to be proportionally enhanced by increasing reinforcement content, maintaining high impact strength. These composites present great opportunities for PP application areas that require higher impact resistance. The materials were submitted to a series of closed-loop recycling cycles in order to assess their recyclability, being able to maintain better tensile strength than virgin HDPE after 5 cycles. The study develops new low-cost and sustainable composites by using a waste as composite filler.

Download Full-text