Mechanical and Thermal Properties of R-High Density Polyethylene Composites Reinforced with Wheat Straw Particleboard Dust and Basalt Fiber

Abstract

The effect of individual and combined particleboard dust (PB dust) and basalt fibers (BFs) on mechanical and thermal expansion performance of the filled virgin and recycled high density polyethylene (HDPE) composites was studied. It was shown that the use of PB dust had a positive effect on improving mechanical properties and on reducing linear coefficient of thermal expansion (LCTE) values of filled composites, because the adhesive of the particle board held the wheat straw fibers into bundles, which made PB dust have a certain aspect ratio and high strength. Compared with the commonly used commercial WPC products, the flexural strength of PB dust/VHDPE, PB dust/RHDPE, and PB dust/VHDPE/RHDEPE at 40 wt% loading level increased by 79.9%, 41.5%, and 53.9%, respectively. When 40 wt% PB dust was added, the crystallization degree of the composites based on three matrixes decreased to 72.5%, 45.7%, and 64.1%, respectively. The use of PB dust can help lower the composite costs and increase its recyclability. Mechanical properties and LCTE values of composites with combined BF and PB dust fillers varied with PB dust and BF ratio at a given total filler loading level. As the BF portion of the PB dust/BF fillers increased, the LCTE values decreased markedly, which was suggested to be able to achieve a desirable dimensional stability for composites. The process provides a useful route to further recycling of agricultural wastes.

Swelling, Thermal and Mechanical Characterizations of High-Density Polyethylene/ Recycled Biochar Composites

“…Previous work was studied by Idress(27), who found that the highest tensile strength for HDPE composite with a mold surface temperature of 50 °C. By comparing with this work, Yu et al(28) reported in their findings regarding the mechanical characterizations for particleboard dust (PB dust) and basalt fibers (BFs)/Recycled (R-HDPE), they found that the tensile strength was increased with the loading of (1BP dust:1BFs) in HDPE composite. They reported that the tensile strength of 1PB:1BFs/RHDPE composite was 28.3 MPa while the virgin RHDPE matrix was 19.4 MPa.…”

A Review on the Incorporation of Diatomaceous Earth as a Geopolymer-Based Concrete Building Resource

“…Recycling waste plastics and agricultural residues is an excellent option for global sustainable development, and it is now a prevalent practice in the manufacturing sector [ 94 , 95 ]. Studies have demonstrated that various industrial and domestic wastes can be recycled and utilized as concrete elements in the development of green concrete [ 9 ].…”

Agricultural-waste Sesamum indicum L./recycled-low density polyethylene bio-composites: Impact of gamma radiation on mechanical and thermal properties

“…Bio-composites synthesized from natural fibers and recycled plastics are in considerable demand across the world. Natural fibers are directly obtained as a waste product after harvesting a variety of crops such as rice husk, 1 wheat straw, 2 rice straw, 3 sugarcane bagasse, 4 cotton stalk, 5 and corn husk. 6 The pre-dominant issue is the burning and discarding of waste crop residues in the open land as it causes many environmental hazards.…”