Innovative high-density polyethylene/waste glass powder composite with remarkable mechanical, thermal and recyclable properties for technical applications

Abstract

Several reinforcement materials are incorporated into a polymeric matrix to improve the mechanical properties and reduce the cost of the obtained composites. In this work, recycled high-density polyethylene/waste glass powder composites, compatibilized with maleic anhydride-grafted polyethylene, were prepared using a two-roll mill and compression molding techniques. Four levels of waste glass powder, 2, 10, 20 and 30% by weight, and five levels of the compatibilizer, polyethylene grafted with maleic anhydride (0.5, 1.5, 2.5, 5 and 7.5%by weight), were used. The effect of adding waste glass powder and compatibilizer concentration on the composite's mechanical properties, such as tensile strength, tensile strain, tensile modulus and thermal properties was studied. The results showed that superior mechanical properties were obtained and that the tensile strength and modulus increased with increasing waste glass powder content and compatibilizer concentration by 20 and 1.5 wt%, respectively. However, the elongation at the break decreased with the increase in both factors. The composite, which was prepared under ideal conditions, has high thermal stability and can be easily recycled and reprocessed for five cycles with high mechanical properties. This study recommends that the prepared composite, under optimum conditions, can be used as a cost-effective automobile dashboard material.

Comparative study of some properties of wood plastic composite materials produced with polyethylene, wood flour, and glass flour

“…The tensile strengths of all the experimental groups (groups 2, 3, 4, 5, and 6) were smaller than that of the control group (group 1). Similar results were reported by Sadik et al (2021) and Karunanayake (2007). The tensile strengths of the experimental groups increased as the percentage of wood flour decreased and the percentage of glass flour increased.…”

“…The elongation at break values of all experimental groups (groups 2, 3, 4, 5, and 6) were smaller than that of the control group. Similar results related to plastic composites filled with glass flour were reported by Sadik et al (2021) and Karunanayake (2007). The difference was statistically significant (P < 0.001).…”

“…In some previous studies, glass flour obtained from waste glass was used as filler in plastic composites. For example, Sadik et al (2021) evaluated the remarkable mechanical and thermal properties of high-density polyethylene/waste glass flour composite, and they reported that the tensile properties decreased as the waste glass powder percentage increased. Bhaskar et al (2021) investigated the tensile and flexural strengths of a glass-flour-reinforced polymer composite, and noted that using 40% crystal powder filler by volume resulted in the maximum tensile strength, whereas the maximum flexural and impact strengths were achieved with 30% and 20% volume fractions, respectively.…”

Developing Eco-Friendly 3D-Printing Composite Filament: Utilizing Palm Midrib to Reinforce High-Density Polyethylene Matrix in Design Applications

“…High-density polyethylene (HDPE) is one of the polymers that has gained prominence as a multifaceted and environmentally friendly substance [ 17 ] within the industries of interior design, furniture manufacturing, and 3D printing. HDPE, known for its exceptional strength-to-density ratio, finds extensive utility throughout a diverse range of fields, encompassing innovative furniture design, sophisticated interior embellishments, and cutting-edge 3D-printing methodologies.…”

An experimental investigation on enhancing the strength and stiffness of GFRP co-cured composite joint: effect of glass powder addition

“…They reach the conclusion that the fillers' particle size significantly influences the wear rate. Sadik et al [26] found that the addition of waste glass powder in the high-density polyethylene matrix enhances the tensile strength and modulus.…”