Mechanical, morphological, and thermal properties of poly(vinyl chloride)/low‐density polyethylene composites filled with date palm leaf fiber

Abstract

This article investigates the mechanical, morphological, and thermal properties of poly(vinyl chloride) (PVC) and low‐density polyethylene (LDPE) blends, at three different concentrations: 20, 50, and 80 wt% of LDPE. Besides, composite samples that were prepared from PVC/LDPE blend reinforced with different date palm leaf fiber (DPLF) content, 10, 20, and 30 wt%, were also studied. The sample in which PVC/LDPE (20 wt%/80 wt%) had the greatest tensile strength, elongation at break, and modulus. The good thermal stability of this sample can be seen that T10% and T20% occurred at higher temperatures compared to others blends. DPLF slightly improved the tensile strength of the polymer blend matrix at 10 wt% (C10). The modulus of the composites increased significantly with increasing filler content. Ageing conditions at 80°C for 168 h slightly improved the mechanical properties of composites. Scanning electron microscopic micrographs showed that morphological properties of tensile fracture surface are in accordance with the tensile properties of these blends and composites. Thermogravimetric analysis and derivative thermogravimetry show that the thermal degradation of PVC/LDPE (20 wt%/80 wt%) blend and PVC/LDPE/DPLF (10 and 30 wt%) composites took place in two steps: in the first step, the blend was more stable than the composites. In the second step, the composites showed a slightly better stability than the PVC/LDPE (20 wt%/80 wt%) blend. Based on the above investigation, these new green composites (PVC/LDPE/DPLF) can be used in several applications. J. VINYL ADDIT. TECHNOL., 25:E88–E93, 2019. © 2018 Society of Plastics Engineers

Influence of Alkali Treatment and Dune Sand Content on the Properties of Date Palm Fiber Reinforced Unsaturated Polyester Hybrid Composites

“…The valorization of date palm fiber (DPF) [4,5] and dune sand (DS) [6,7] in material engineering is an important economic activity in northern Africa.…”

Synergistic Effects of Mixed Metal Stearate, Calcium Carbonate Particles and Recycled Low Density Polyethylene on The Mechanical, Thermal and Structural Performance of Polyvinylchloride Blend.

“…Many researchers reported the incorporation of different polymers in PVC induced high thermal and mechanical performance [26-28]. Our previous experimental results revealed that thermal stability of the PVC/LDPE blend was improved signi cantly by increasing the LDPE loading to values above 50 wt% [29]. To the best of our knowledge there are no reports of degradation behavior of PVC, considering the synergistic effects of mixed metal stabilizers (CaSt 2 /ZnSt 2 ) with different concentrations and different ratios of calcium/zinc stearates, Calcium carbonate (CaCO 3 ) as micro-ller and recycled low-density polyethylene (r-LDPE).…”

Mechanical and morphological properties of poly(vinyl chloride) and linear low‐density polyethylene polymer blends

“…These properties limit their application. The mixing of these polymers [6][7][8][9][10] makes it possible to strengthen a number of operational characteristics (e.g., the elastic modulus, glass transition temperature, impact resistance, and thermal stability) depending on the ratio of the components in the mixture and their initial characteristics. Of significant interest is the effect of the thermal stabilization of polyvinyl chloride (PVC) at low PE contents [10][11][12][13] due to interchain crosslinking of macroradicals formed during the mixing of the components in the melt in the temperature range from 150 to 180 С.…”