Mechanical and morphological properties of Citrus Maxima waste powder filled Low-Density polyethylene composites

The study examined the effect of fillers on the mechanical properties of the recycled low density polyethylene composites under weathered condition with a view of managing the generation and disposal of plastic wastes. Discarded pure water sachets and fillers (glass and talc) were sourced and recycled. Recycled low density polyethylene (RLDPE) and preparation of RLDPE/glass, RLDPE/talc and RLDPE/glass/talc composites were carried out using a furnace at compositions of 0 – 40% in steps of 10% by weight. The mixtures were poured into hand-laid mould. The samples produced were exposed to sunlight for eight (8) weeks and their mechanical properties were studied. The results of mechanical tests revealed that tensile strength decreased with increasing filler loading while impact strength and hardness property increased marginally and considerably with increasing filler loading for all the composites respectively. The study concluded that glass and talc were able to reinforce recycled low density polyethylene under weathered condition. Keywords: Recycled Low Density Polyethylene (RLDPE); Fillers; Glass, Talc; Weathering condition; Sunlight; and Mechanical properties; Tensile strength, Impact and hardness

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Crystallization Kinetics in Low Density Polyethylene Composites

Conductive Polymers and Plastics ◽

10.1016/b978-188420777-8.50022-9 ◽

1999 ◽

pp. 153-158

Author(s):

Brian P. Grady ◽

W.B. Genetti

Keyword(s):

Crystallization Kinetics ◽

Low Density Polyethylene ◽

Low Density ◽

Polyethylene Composites

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Preparation of functionalized graphene-linear low-density polyethylene composites by melt mixing method

10.1063/5.0003935 ◽

2020 ◽

Author(s):

Santosh Chavan ◽

Veershetty Gumtapure ◽

D. Arumuga Perumal

Keyword(s):

Low Density Polyethylene ◽

Low Density ◽

Functionalized Graphene ◽

Linear Low Density Polyethylene ◽

Melt Mixing ◽

Mixing Method ◽

Polyethylene Composites

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Protective Low-Density Polyethylene Residues from Prepreg for the Development of New Nanocomposites with Montmorillonite: Recycling and Characterization

Recycling ◽

10.3390/recycling4040045 ◽

2019 ◽

Vol 4 (4) ◽

pp. 45

Author(s):

Pamela Rodrigues Passos Severino ◽

Thaís Larissa do Amaral Montanheiro ◽

Orestes Ferro ◽

Fábio Roberto Passador ◽

Larissa Stieven Montagna

Keyword(s):

Carbon Fiber ◽

Extrusion Process ◽

Morphological Properties ◽

Low Density Polyethylene ◽

Low Density ◽

Primary Role ◽

Protective Films ◽

And Storage ◽

Compatibilizer Agent ◽

The Ideal

A sustainable alternative to the destination of polyethylene (PE) residue from the prepreg package was established. This work intends to develop nanocomposites for packaging containing neat low-density polyethylene (LDPE), a compatibilizer agent (maleic anhydride grafted-LDPE, LDPE-g-MA), recycled LDPE obtained from the protective films of prepreg (rLDPE) and montmorillonite (MMT). The rLDPE, from the prepreg shield, has a primary role during the transport and storage of prepreg, which can be composed of epoxy resin and carbon fiber or glass fiber. However, this rLDPE is withdrawn and discarded, besides, it is estimated that tons of this material are discarded monthly by the company Alltec Materiais Compostos Ltd. (São José dos Campos-SP, Brazil). Due to several factors, including the lack of technology for recycling, the majority of this material is incinerated. In this context, this work presents a technical and ecologically viable alternative for the use of this discarded material. Nanocomposites of LDPE/rLDPE blends and montmorillonite (MMT) with different contents (0.0, 1.0, and 3.0 wt%) and with the addition of compatibilizer agent (LDPE-g-MA) were prepared by extrusion process. Test specimens were obtained by hot pressing in a hydropneumatic press followed by die-cutting. The nanocomposites produced using rLDPE presented good mechanical, thermal, and morphological properties, being the ideal concentration of 1 wt% MMT. Thus, the results obtained confirmed the viability of recycling LDPE from the prepreg package which contributes to the reduction of waste and the use of this material in technological applications.

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Impact of hybrid nanosilica and nanoclay on the properties of palm rachis-reinforced recycled linear low-density polyethylene composites

Journal of Thermoplastic Composite Materials ◽

10.1177/0892705720944213 ◽

2020 ◽

pp. 089270572094421

Author(s):

Wagih Abdel Alim Sadik ◽

Abdel Ghaffar Maghraby El Demerdash ◽

Rafik Abbas ◽

Alaa Bedir

Keyword(s):

Tensile Modulus ◽

Stress Transfer ◽

Microscopy Study ◽

Hybrid Nanoparticles ◽

Morphological Properties ◽

Low Density Polyethylene ◽

Low Density ◽

Linear Low Density Polyethylene ◽

Plastic Composite ◽

Blending Method

The main goal of this work was to assess the technical feasibility of palm rachis (PR) as a reinforcing agent in the production of wood–plastic composites. Recycled linear low-density polyethylene/PR fiber composites were prepared at constant content (3 phc (per hundred compounds)) of maleic anhydride-grafted polyethylene as compatibilizer by melt blending method utilizing a two-roll mill and compression molding. The effect of nanosilica (NS), nanoclay (NC), and hybrid nanoparticles (NSNC) at different concentrations (2, 4, and 6 phc) on mechanical, physical, thermal, and morphological properties was investigated. The results of mechanical properties measurements demonstrated that when 6 phc NS, 4 phc NC, and 4 phc NSNC were added, tensile, modulus strength, and hardness reached their optimum values. At a high level of NC loading (6 phc), the increased populace of NC layers led to agglomeration and stress transfer gets restricted. Elongation at break and Izod impact strength were decreased by the incorporation of different nanoparticles. Water absorption and thickness swelling of prepared composites were found to decrease on the incorporation of NS and NC. In addition, the thermal stability showed slightly improved by the addition of nanoparticles, but there are no perceptible changes in the values of melting temperature by increasing the content of NS and NC or NSNC. Scanning electron microscopy study approved the good interaction of the PR fibers with the polymer matrix as well as the effectiveness of NS and NC in the improvement of the interaction. The finding indicated that wood–plastic composite treated by NS had the highest properties than other composites.

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