Effect of alkali surface treatment and compatibilizer agent on tensile and morphological properties of date palm fibers‐based high density polyethylene biocomposites

Abstract

The objective of the present study is to develop an environment friendly alternative material based on available and local bio‐source from the wastes of Algerian date palm trees, date palm twigs fiber (DPF) was selected as an effective reinforcing material for high density polyethylene (HDPE) biocomposite. Two types of treatments have been used including sodium hydroxide (NaOH) treatment to obtain DPF1 followed by potassium permanganate (KMnO4) treatment to obtain DPF2 for aim to improve fiber‐matrix compatibility, HDPE biocomposite reinforced with different ratios of DPF1 and DPF2 varying from 10 to 30 wt% were elaborated, characterized, and compared to select the preferred treatment and percent of DPF which can be used with high properties. The results obtained indicates that the incorporating of 30 wt% of DPF2 in HDPE biocomposite led to an improve in the mechanical and morphological properties. In fact, the improvement in interfacial properties improve ultimate biocomposite performance, and thus qualified its use in different industrial application. The maleic anhydride grafted high‐density polyethylene (HDPE‐g‐MA) was incorporated as a coupling agent to the reinforced biocomposite of 30 wt% DPF2/HDPE with two different loading (7 and 10 wt%), Also, the treatments were seen to enhance the tensile strength and elastic modulus. Additionally, the biocomposites observation by scanning electron microscopy (SEM) and atomic force microscopy (AFM) revealed more intimate contact between the fibers and HDEP matrix after surface modification. The results suggested that the successful sample with best characteristics which can be advised is 30 wt% DPF2/HDPE/10 wt% HDPE‐g‐MA, that offer their use in many applications particularly in the automotive industry.

Classifications and applications of biocomposites: a bibliometric review and analysis

“…The author with the highest number of publications was Jawaid, M. He started the studies regarding the term "Biocomposite" in 2012 and published the first research under the tittle: A review of oil palm biocomposites for furniture design and applications: potential and challenges (Suhaily et al, 2012), being a reference in the subject "Biocomposite" with 359 publications. His last publication on the platform is entitled: Effect of alkali surface treatment and compatibilizer agent on tensile and morphological properties of date palm fibers-based high density polyethylene biocomposites (Hachaichi et al, 2022).…”

Agro-Waste Bean Fibers as Reinforce Materials for Polycaprolactone Composites

“…It is also possible to find the presence of crackles on the surface of the granules, which is probably due to extraction processes. Both types of fiber, from borlotti beans and green beans, respectively, were treated independently under the same extraction protocol [11]. Absorbed water was removed through freeze-drying because of the greater hygroscopicity of green bean fibers.…”

“…The C-H stretching mode at 2930 cm −1 is characteristic of cellulose and hemicellulose. Also, the absorption band centered at 2889 cm −1 is characteristic of hemicellulose vibrational Both types of fiber, from borlotti beans and green beans, respectively, were treated independently under the same extraction protocol [11]. Absorbed water was removed through freeze-drying because of the greater hygroscopicity of green bean fibers.…”

“…These limits could be potentially overcome using fiber pretreatments of biomass. Several articles deal with various types of fiber pretreatments with alkali (sodium hydroxide) [9] or oxidative agents (potassium permanganate, peroxide) as well as with reagents such as stearic acid [10], which enhance the properties, making the fiber surfaces more compatible with the polymer matrix [11] reacting with hydroxyl groups of cellulose/hemicellulose.…”

Characterization of Posidonia oceanica Fibers High-Density Polyethylene Composites: Reinforcing Potential and Effect of Coupling Agent

“…Furthermore, Li [33] found that adding a coupling agent (MAPE) enhanced the flexural and tensile properties of wood/HDPE composites and improved the interfacial adhesion, as evidenced by the SEM micrographs. Hachaichi et al [34] recently studied the effects of alkali surface modification and a compatibilizer agent on HDPE's mechanical behavior and microstructure reinforced with date palm fiber (DPF) biocomposites. The results indicated that incorporating 30 wt% of DPF treated with NaOH and KMnO4 (DPF2) in the HDPE biocomposite improved the mechanical and morphological properties.…”