Neat Linear Low-density Polyethylene Research Articles

Investigation of the effect of electron beam irradiation on tensile, thermal and gas barrier properties of graphene nanoplatelet loaded thermoplastic nanocomposite films

Packaging materials based on lightweight and flexible thermoplastic/graphene composite films are gaining popularity in both the academic and industrial sectors. In this research work, graphene nanoplatelet (GNP) of 1–5 wt% was integrated into linear low density polyethylene (LLDPE) by employing melt compounding technique at 160 °C to produce flexible composite films. The LLDPE/GNP nanocomposite films were irradiated with doses up to 50 kGy using a 2.5 MeV electron beam accelerator in air at ambient temperature. The uniform distribution of GNP in the thermoplastic matrix obtained from FESEM analysis improved the samples' mechanical characteristics. As the GNP concentration in the LLDPE matrix increases, both the thermal stability and impermeability qualities (oxygen and water vapor) get significantly improved. Electron beam irradiation of film samples further enhances the physico-mechanical, thermal and gas barrier properties compared to non-irradiated composite films and neat LLDPE film. The tighter connections between graphene and LLDPE chains as well as the development of cross-linked networks by E-beam irradiation are responsible for the improved performance properties. Therefore, GNP incorporation as well as electron beam irradiation of thermoplastic nanocomposite films could be a viable alternative for producing high-performance and high-barrier flexible LLDPE/GNP composite films for packaging applications.

Tensile and thermal behaviour of linear low-density polyethylene nanocomposite films

In this work Graphene nanoplatelets (GNPs) filled with Linear low-density polyethylene (LLDPE), nanocomposite films designated as LLDPE+1%GNP and LLDPE+5% GNP were manufactured using LLDPE pristine granules, 1 wt. % GNPs-LLDPE, and 5wt. % GNPs-LLDPE masterbatch granules by the extrusion-blow molding process. It was found that the ductile behaviour of neat LLDPE film and nanocomposite films are anisotropic in the machine direction (MD) and transverse direction (TD). The tensile strength of neat LLDPE films in the MD and TD is 25.93 & 20MPa. LLDPE+1GNPs nanocomposite films showed higher tensile strength in the MD and TD 28.38 & 23MPa, and LLDPE+5GNPs nanocomposite films showed 24.36 & 23MPa respectively. The high concentration of GNPs in LLDPE acts as plasticizers increased the elongation, reduced the strength, and increased the rate of thermal degradation. The XRD results reveal additional peeks observed in LLDPE+5GNPs nanocomposite films infer the slight change in crystallinity as compared to neat LLDPE film. This is evident in the change of tensile behaviour of nanocomposite as compared to LLDPE.

Use of orange juice processing waste to produce films using blown film extrusion for food packaging

Orange peel (OP) is a by-product from citrus juicing that is wasted. Conversion of this waste into plastic filler can help reduce environmental problems. OP has been incorporated into plastics to form biocomposites using compression molding, injection molding, and casting. However, blown film extrusion, the most common manufacturing process for plastic films has not been investigated yet. The aims of this study were: (1) to produce linear low density polyethylene (LLDPE)/OP films using blown film extrusion, (2) to determine the maximum OP amount that can be used to replace plastic through blown film production, and (3) to assess the effect of OP amount on film morphology and properties. LLDPE/OP masterbatch pellets were produced and combined with neat LLDPE using specific processing parameters determined to produce blown LLDPE/OP composite films differing in OP content (5, 10, 11.5, and 12.5%). The morphology, thickness, and mechanical, barrier, optical and thermal properties of the blown composite films and neat films were compared. The results show that LLDPE/OP films containing up to 11.5% OP can be produced through blown film extrusion. These films have similar (p > 0.05) water barrier, crystallinity, and melting temperature, but lower tensile strength and elongation at break than neat LLDPE films. OP loading enhanced the UV and visible light blocking capacity of the films. This study revealed that blown LLDPE/OP films are suitable for food packaging.

Morphology and permeability of bio-based poly(butylene adipate-co-terephthalate) (PBAT), poly(butylene succinate) (PBS) and linear low-density polyethylene (LLDPE) blend films control shelf-life of packaged bread

Poly(butylene adipate-co-terephthalate) (PBAT), poly(butylene succinate) (PBS) and linear low-density polyethylene (LLDPE) were blended to produce bio-based packaging via blown-film extrusion. Blend ratios modified morphology, crystallinity and relaxation temperatures (T α ) of the films. Binary mixtures caused phase separation and non-homogeneous fibrous microstructures of immiscible polymers. Bio-based blend films containing LLDPE (LLDPE/PBAT and LLDPE/PBS) gave less homogeneous structures than PBAT/PBS films. The formation of oriented fibrous networks subsequently controlled mechanical and barrier properties of the blend films. LLDPE blending modified C=O carbonyl groups in PBAT and PBS, forming voids in topographic images indicating incompatibility. PBAT and PBS blends showed good compatibility and adhesion of polymer interface, causing smooth and compact structures with minimal surface roughness. Incorporation of PBAT and PBS sharply reduced crystallinity of LLDPE/PBAT and LLDPE/PBS films. LLDPE/PBAT blends had lower T α than neat PBAT and LLDPE, while T α of PBAT/PBS blends proportionally decreased at increasing PBS which indicated diverse polymer miscibility and molecular mobility. Water vapor permeability (WVP) and oxygen permeability (OP) fitted with polynomial and exponential equations, respectively and depended on blend ratios. Films containing higher PBS had combined higher WVP and lower OP, delaying fungal growth in packaged bread due to dehydration. Ratios of PBAT, PBS and LLDPE blend films clearly affected mold growth and crumb hardness during storage. Regardless of film components, the firmness of bread crumbs increased linearly with package WVP. Conversely, mold growth had insignificant correlation with OP. Moisture loss from bread crumbs due to high WVP showed dominant effects on microbial growth. Blending PBAT and PBS modified the morphology and permeability of bio-based films and increased the shelf-life of packaged bread. • Systematic investigations for packaging properties in bio-based PBAT/PBS/PE blends. • FTIR intensity ratios effectively monitor bonding and morphology modifications. • H 2 O and O 2 permeability in PBAT/PBS/PE blends fitted to cubic and exponential model. • Hardness of packaged bread linearly increased with water vapor permeability. • Water vapor permeability majorly affected mold growth and increasing crumb hardness.

THE INFLUENCE OF OLEIC ACID AND BENZOYL PEROXIDE AGAINST OLEIC ACID GRAFTED ONTO LLDPE

In this study, the graft copolymerization of oleic acid (OA) onto linear low-density polyethylene (LLDPE) was successfully prepared by free radical reaction using benzoyl peroxide (BPO) initiator in the molten state. The study aims to determine the influence of OA monomer and BPO initiator on the grafting degree (GD) percentage of LLDPE-g-OA and its characteristics. LLDPE, OA, and BPO were mixed in an internal mixer, purified using acetone and methanol to separate from the unreacted OA and the OA homopolymer. The results showed that the addition of 12 wt% of OA monomer and 5 wt% of BPO initiator achieved the maximum GD percentage. The presence of a small band at 1707.1 cm-1, which is the OA carbonyl group, indicated that OA had been grafted onto LLDPE. LLDPE-g-OA also displayed better thermal stability than neat LLDPE and has a melting point of 123 °C. There were significant morphological changes and increased mass percentage of elemental carbon after the OA monomer grafting onto LLDPE.

Теплофизические и диэлектрические свойства полимерных композиций, наполненных гексагональным нитридом бора

Thermophysical and dielectric properties of polymer composites based on linear low density polyethylene (LLDPE) and poly(lactic acid) (PLA) filled with hexagonal boron nitride (hBN) have been studied. It is found that all developed composites possess dielectric properties and enhancement thermal conductivity compared with neat polymer matrices. Unlike carbonaceous fillers (carbon black, graphite, graphene, carbon nanotubes), hBN is a good insulator and therefore is more applicable as a filler for heat-releasing materials with purely white appearance. At the same time, both LLDPE/hBN and PLA/hBN composites at 40 wt% filler content possess comparable thermal conductivity about 0.7 W×m-1×K-1, which is almost 95% and 250% higher than those for the neat LLDPE and PLA, respectively.

A comparative study on thermal conductivity and permittivity of composites based on linear low‐density polyethylene and poly(lactic acid) filled with hexagonal boron nitride

AbstractThermal conductivity (λ) and permittivity (ε′) of polymer composites based on linear low‐density polyethylene (LLDPE) and poly(lactic acid) (PLA) filled with hexagonal boron nitride (hBN) were considered in this work. It is found that all developed composites possess dielectric properties and enhancement thermal conductivity compared with neat polymer matrices. Unlike carbonaceous materials (carbon black, graphite, graphene, carbon nanotubes), hBN is a good insulator and is therefore more applicable as a filler for heat‐releasing materials with a purely white appearance. At the same time, both LLDPE/hBN and PLA/hBN composites at 40 wt% filler content possess the comparable value of λ about 0.7 W/(m K), which is almost 95% and 250% higher than those for the neat LLDPE and PLA, respectively.

Enhancing the UV/heat stability of LLDPE irrigation pipes via different stabilizer formulations

AbstractHerein different stabilizer formulations of linear low‐density polyethylene (LLDPE) against UV‐ and heat‐initiated degradation are described. The project aims at outdoor applications, such as irrigation piping and profiles, in the Middle East desert regions, where long‐term weathering stability due to high temperatures and solar radiation is important. Two UV/heat formulations, without and with carbon black (CB) as pigment, were incorporated into LLDPE by melt compounding. Neat LLDPE and the stabilized compounds were exposed to accelerated UV and heat aging. Morphological analysis through scanning electron microscopy of the UV‐exposed neat LLDPE showed more severe surface cracking compared to the CB‐containing LLDPE, while all stabilized compounds did not show any surface degradation. Crack formation was less visible for the thermally aged samples. A significant decrease in molecular weight (MW) was observed for the neat UV‐exposed LLDPE, while both unpigmented stabilized compounds showed little change in MW. Mechanical properties, thermal analysis, and carbonyl index results supported the morphological results, which confirmed that CB alone was slightly more effective in protecting the LLDPE against UV initiated degradation, but performed worse against thermal initiated degradation. UV1 and UV2 compounds were efficient against both UV‐ and heat‐initiated degradation, with UV1 performing better for unpigmented compounds, and UV2 for the pigmented ones.

Effect of silane concentration on the properties of crosslinked linear low density polyethylene‐montmorillonite nanocomposite

AbstractIn this study, linear low density polyethylene (LLDPE) was grafted and crosslinked by reactive extrusion melt compounding using different silane concentration with and without the presence of montmorillonite (MMT) nanoclay. The effects of different silane concentration and the addition of nanoclay filler on the degree of crosslinking, mechanical, thermal, rheological, and morphological properties were investigated and reported. Gel content results for all crosslinked samples were found to increase with increasing silane concentration. Tensile strength and Young's modulus of crosslinked LLDPE samples increased with increasing silane concentration compared to neat LLDPE; while the crosslinked LLDPE samples containing nanoclay have achieved higher tensile strength and Young's modulus, indicating strong interfacial interaction between silane grafted LLDPE matrix and nanoclay. However, the decrease of elongation at break for all crosslinked samples were observed compared to neat LLDPE. A reduction in the degree of crystallinity for crosslinked samples, particularly crosslinked samples containing nanoclay, was shown by thermal analysis results; whereas the melting temperature did not change significantly with increased silane concentration and subsequent addition of nanoclay. Thermogravimetric analysis results have revealed significant thermal stability improvement for neat LLDPE with increased silane concentration. Furthermore, crosslinked samples containing nanoclay have achieved better thermal stability compared to crosslinked samples without nanoclay. At lower frequency, it was found that viscosity, and storage modulus of neat LLDPE increased with increased silane concentration due to crosslinking and further addition of nanoclay into crosslinked LLDPE. The transmission electron microscopy results confirmed the intercalated structure of the nanocomposite for the crosslinked samples containing nanoclay.

Superior dispersion led excellent performance of wood-plastic composites via solid-state shear milling process

Wood-plastic composites as a kind of lightweight and green biomaterials are attracting great interest from academia and industry. However, challenges for effective wood flour (WF) dispersion in wood-plastic composites have hindered the desired property enhancements and limits their wider applications. This study reported an effective method to produce linear low-density polyethylene (LLDPE)/WF composite with superior WF dispersion via solid-state shear milling (S3M) for the first time. Such well-dispersed WF results in a significant enhancement in processability and shows a decrease of viscosity from 8021 Pa s to 3893 Pa s, which is closer to that of neat LLDPE (2286 Pa s) at shear rates of 100−1. The S3M processed composites also show a 26.5% increase and maximum tensile strength reached 31.1 MPa. In addition to the excellent mechanical performance, the water absorption of composites was as low as 0.22% after 840 h immersion, which is lower than most reported data. Moreover, the S3M processed composites exhibit a significant increase in LLDPE crystallinity and a dramatic 66 °C increase in maximum weight loss rate temperature in air. This work was conducted without any surface modification or use of compatibilizer, this new method will have potential applications in producing excellent performance wood-plastic composites in the industrial process.

Facile and scalable fabrication of highly thermal conductive polyethylene/graphene nanocomposites by combining solid-state shear milling and FDM 3D-printing aligning methods

Polymer-based thermal conductive composites (PTCs) with both excellent thermal and mechanical properties are highly desirable in the thermal management of modern microelectronic industry. However, the enhancement efficiency for fillers loaded polymer composite is actually lower than the theoretically predicted value. The significant reasons could be due to the restriction of interfacial thermal resistance at filler-polymer matrix interfaces as well as the thermal conductive orientation dependence of anisotropic fillers. In the present study, solid-state shear milling (S3M) strategy and FDM 3D-printing aligning technology were combined to synergistically improve thermal conductivity of linear low-density polyethylene (LLDPE)/graphene nanoplatelet (GNPs) nanocomposites. The fabricated FDM 3D-printed parts exhibit a significantly enhanced through-plane thermal conductivity up to 3.43 W m−1 K−1 along printing direction compared to that of neat LLDPE (0.40 W m−1 K−1) and also that of traditionally melt-compounded LLDPE/GNPs composites (1.98 W m−1 K−1) at the same GNPs loading of 15.0 vol%. The enhanced thermal conductivity is attributed to the long-range aligned bridge-connected network structure of GNPs constructed in the PE matrix along printing direction due to the shear-inducing effect of FDM 3D-printing. Simultaneously, the S3M technology we adopted also reduces the interfacial thermal resistance and thus increases the thermal conductivity of the obtained nanocomposite, which was further demonstrated by the way of theoretical effective medium approximation (EMA) models we applied. The achieved high thermal conductivity and mechanical properties of the FDM 3D-printed LLDPE/GNPs thermal conductive parts suggest promising applications in the heat diffusion of some advanced electronic devices.

Gas transport properties of cellular hollow fiber membranes based on LLDPE/LDPE blends

The production of foamed hollow fiber membranes (HFMs) is presented based on polymer blends using various concentrations of linear low-density polyethylene (LLDPE) and low-density polyethylene (LPDE) combined with azodicarbonamide (chemical blowing agent) to prepare samples via twin-screw extrusion. In particular, the blowing agent concentration as well as the stretching speed were found to be the most important parameters to achieve a good cellular structure for membrane application. From the samples obtained, a complete set of morphological, thermal, and gas transport characterization was performed. The results show that LLDPE/LDPE blends compared to neat LLDPE lead to higher cell density at high stretching speed, which is appropriate for membranes having higher gas permeability and selectivity due to lower cell wall thickness. The results also show that the developed cellular structure has high potential for the continuous production of HFMs for different gas separation, especially for hydrogen recovery.

Orange peel waste from juicing as raw material for plastic composites intended for use in food packaging

ABSTRACTUtilization of orange peel (OP) from the juicing industry as filler material within a polymer matrix can add value to this agricultural waste and reduce dependence on nonrenewable resources. This study aims to investigate the impact of OP filler's physical characteristics including size, loading, and retention/removal of zest on plastic properties of interest for food packaging. Linear low‐density polyethylene (LLDPE) is selected to produce plastic composites due to its widespread use in food packaging. Eight different LLDPE/OP sheets from combinations of different OP characteristics are examined. Results show that OP particle sizes of 75–177 μm without zest at 0.4‐g loading improve thermal stability, color, dispersion, tensile strength, modulus of elasticity, and elongation at break as well as reduce air bubble formation and OP agglomerate sizes in LLDPE/OP composites. Results show a promise in utilization of OP fillers to produce a composite comparable to neat LLDPE and composites with UV‐blocking properties. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48841.

Mechanical, electrical and thermal performance of hybrid polyethylene-graphene nanoplatelets-polypyrrole composites: a comparative analysis of 3D printed and compression molded samples

ABSTRACTThe paper focuses on the investigation of the 3D printing of multi-functional composites using graphene nanoplatelets (GNP), polypyrrole (PPY) and linear low-density polyethylene (LLDPE). A holistic approach was performed and characterization methods to assess the properties of 3D printed composites and compared with those of compression molded composites and neat LLDPE to understand the factors affecting their performance. It has been noted that the 3D printed composites have superior mechanical and electrical properties than neat LLDPE, but slightly lower compared to those of compression molded composites having high packing density of fillers. The nominal increases were 13.2% (tensile strength), 31.9% (flexural strength), 29.4% (flexural modulus) and 24.7% (storage modulus).

Thermal and Mechanical Analysis of Polyethylene Homo-Composites Processed by Rotational Molding.

This work is aimed at studying the suitability of ultra-high molecular weight polyethylene (UHMWPE) fibers for the production of polyethylene homo-composites processed by rotational molding. Initially pre-impregnated bars were produced by co-extrusion and compression molding of UHMWPE fibers and linear low-density polyethylene (LLDPE). A preliminary screening of different processing routes for the production of homo-composite reinforcing bars was performed, highlighting the relevance of fiber impregnation and crystalline structure on the mechanical properties. A combination of co-extrusion and compression molding was found to optimize the mechanical properties of the reinforcing bars, which were incorporated in the LLDPE matrix during a standard rotational molding process. Apart from fiber placement and an increase in processing time, processing of homo-composites did not require any modification of the existing production procedures. Plate bending tests performed on rotational molded homo-composites showed a modulus increase to a value three times higher than that of neat LLDPE. This increase was obtained by the addition of 4% of UHWMPE fibers and a negligible increase of the weight of the component. Dart impact tests also showed an increased toughness compared to neat LLPDE.

Synergistic effects of metal hydroxides and fumed nanosilica as fire retardants for polyethylene

AbstractThis work aims to study the synergistic effect of aluminum/magnesium hydroxide microfillers and organomodified fumed silica nanoparticles as flame retardants (FRs) for linear low-density polyethylene (LLDPE), and to select the best composition to produce a fire-resistant polyethylene-based single-polymer composite. The fillers were added to LLDPE at different concentrations, and the prepared composites were characterized to investigate the individual and combined effects of the fillers on the thermo-oxidation resistance and the fire performance, as well as the microstructural, physical, thermal and mechanical properties. Both filler types were homogeneously distributed in the matrix, with the formation of a network of silica nanoparticles at elevated loadings. Melt flow index (MFI) tests revealed that the fluidity of the material was not considerably impaired upon metal hydroxide introduction, while a heavy reduction of the MFI was detected for silica contents higher than 5 wt%. FRs introduction promoted a noticeable enhancement of the thermo-oxidative stability of the materials, as shown by thermogravimetric analysis (TGA) and onset oxidation temperature (OOT) tests, and superior thermal properties were measured on the samples combining micro- and nanofillers, thus evidencing synergistic effects. Tensile tests showed that the stiffening effect due to a high content of metal hydroxide microparticles was accompanied by a decrease in the strain at break, but nanosilica at low concentration contributed to preserve the ultimate mechanical properties of the neat polymer. The fire performance of the samples with optimized compositions, evaluated through limiting oxygen index (LOI) and cone calorimetry tests, was strongly enhanced with respect to that of the neat LLDPE, and also these tests highlighted the synergistic effect between micro- and nanofillers, as well as an interesting correlation between fire parameters and viscosity.

Foamy phase change materials based on linear low-density polyethylene and paraffin wax blends

Foamy phase-change materials (FPCMs) based on linear low-density polyethylene (LLDPE) blended with 30 wt.% of paraffin wax (W) were successfully prepared for the first time. The advantage of these materials is their double functionality. First, they serve as standard thermal insulators, and second, the paraffin wax acts as a phase change component that absorbs thermal energy (the latent heat) during melting if the temperature increases above its melting point, which ensures better heat protection of buildings, for instance, against overheating. The density of the porous fabricated FPCM was 0.2898 g/cm3 with pore content 69 vol.% and gel portion achieved 27.5 wt.%. The thermal conductivity of the LLDPE/W foam was 0.09 W/m.K, whereas the thermal conductivity of the neat LLDPE foam prepared under the same conditions was 0.06 W/m.K, which caused a higher porosity of approximately 92 vol.%. The FPCM absorbed or released approximately 22–23 J/g during melting or cooling, respectively, and the material was stable under thermal and mechanical cycling.

Study of Thermal and Mechanical Properties of LLDPE/Sugarcane bagasse/Eggshell Hybrid Biocomposites

Thermal and mechanical properties of neat linear low-density polyethylene (LLDPE) hybrid biocomposite with sugarcane bagasse and eggshell as a reinforcing filler were investigated. Hybrid biocomposites with sugarcane bagasse/eggshell was varied in the range of 6/4, 12/8, 17/13, 20/20, 13/17, 8/12, and 4/6 wt.%, were prepared and examined. The sugarcane bagasse fiber (Sb) was surface-treated using a silane coupling agent (3-(trimethoxysilyl) propyl methacrylate) and eggshell (Es) was treated using titanium (IV) isopropoxide. The results showed that high calcium oxide content was 99 % by weight in eggshell and silicon dioxide content was 50 % by weight in sugarcane bagasse. The tensile and flexural modulus and hardness of the composites with treated Sb/Es were higher than that of the untreated. These values of the LLDPE/Sb/Es composites increased with Sb/Es content. Differential scanning calorimetry (DSC) results show interesting trends in term of the influence of Sb/Es content, both with untreated and treated Sb/Es on the crystallization behavior of the composites but the melting and cold crystallization temperature of its composites did not obviously change. Thermogravimetric analysis (TGA) indicated their thermal stability of the composites, both untreated and surface-treated Sb/Es were lower than that of neat LLDPE. The sample molded from the biocomposite with surface-treated Sb/Es particles showed better dispersion of the materials inside.

Soy‐filled polyethylene fibers for modified surface and hydrophilic characteristics

ABSTRACTBy adding soy flour (soy) to linear low‐density polyethylene (LLDPE), soy‐PE fibers with enhanced hydrophilic characteristics were developed. Blends containing only soy and LLDPE had limited draw‐down, and the resulting thick fibers showed poor mechanical properties. When monoglyceride was added as a compatibilizer, thin fibers with good properties could be successfully spun due to improved dispersion of soy agglomerates in the LLDPE melt. Fibers spun from a blend containing 23/7/70 wt % of soy‐monoglyceride‐LLDPE displayed a tensile modulus and strength of 615 ± 38 and 57 ± 8 MPa, respectively. At 30% less synthetic content, these fibers still displayed mechanical properties generally comparable to those of base polyethylene fibers. Contact angle measurements showed that the soy‐based fibers had a hydrophilic surface (contact angle of 33° ± 4°). Moisture absorption studies confirmed that soy‐PE fibers gained about 20 wt % moisture in 1 h, whereas neat LLDPE fibers did not absorb any significant amount (LLDPE is hydrophobic). This hydrophilic behavior of soy‐PE fibers mimics that of natural fibers. Presence small soy agglomerates on the fiber surface also provides a textured surface and a desired tactile feel to the soy‐PE fibers, which coupled with hydrophilic behavior indicates their potential use in disposable nonwovens. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46609.

Sustainable potato peel powder–LLDPE biocomposite preparation and effect of maleic anhydride-grafted polyolefins on their properties

Potato peel (POPL), an agricultural waste material, obtained from food industry has been used as filler in the powdered form in linear low-density polyethylene (LLDPE) matrix up to 40% (w/w) to prepare biocomposites. The effect of addition of functional polyolefin compatibilizers—maleic anhydride-grafted polypropylene (MA-g-PP) and maleic anhydride-grafted polyethylene (MA-g-LLDPE), up to 5% (w/w) in POPL/LLDPE biocomposites were also studied. Scanning electron microscope was used for morphological characterization and X-ray diffraction for crystallization studies. Tensile strength of LLDPE biocomposites with MA-g-LLDPE compatibilizer reduced only in the range of 12.0–13.4 MPa compared to 14.6 MPa in neat LLDPE, however, reduced up to 40% in LLDPE biocomposites with 40% POPL content. Remarkable improvement in tensile modulus from 75.7 to maximum 703 MPa was achieved among the biocomposites. Mechanical properties of LLDPE biocomposites with 10% (w/w) POPL filler were comparable to neat LLDPE. Addition of maleic anhydride-grafted polyolefins has enhanced flexural strength and flexural modulus of biocomposites with compatibilizers’ up to 128 and 188%, respectively, compared to neat LLDPE. Low values of water absorption were observed for the biocomposites. The study showed that potato peel powder as inexpensive and potentially sustainable filler in the preparation of LLDPE biocomposites which could be biodegradable and environmentally friendly.