Olga Mysiukiewicz

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• Doctor of Engineering
• Research Assistant at Poznań University of Technology

Nowadays, to provide a step towards circularity, the development of sustainable polymer composites should include the application of waste-based materials that can act not only as simple fillers, reducing the use of polymers but also as functional additives, limiting or eliminating the use of synthetic components. Herein, in the presented study, th...

Biogenic silica (SiO2) sourced from living organisms, especially plants such as rice and other cereals, has recently been successfully applied in different polymeric compositions. Another rich source of biogenic silica is common horsetail (Equisetum arvense L.), containing up to 25% SiO2 in the dry matter. In this study, biogenic silica was obtaine...

Polymer composites are used in all branches of industry, with numerous applications. Despite the many years of modifying commodity polymers, using novel fillers allows the range of their applicability to be extended. The impact of new types of fillers on the polymer matrix is not always predictable and requires further studies. The presented study...

Sustainable polymer composites (or biocomposites) based on renewable and green polymers are progressively under development in a technological paradigm shift from "just use more and more" to "convert into value-added products". Therefore , significant efforts should focus not only on their reduced environmental impact but also on maximizing their p...

Despite their popularity and multiplicity of applications, wood–polymer composites (WPCs) still have to overcome particular issues related to their processing and properties. The main aspect is the compatibility with plant-based materials which affects the overall performance of the material. It can be enhanced by strengthening the interfacial adhe...

The development of new sustainable material solutions in the processing of thermoplastic polymers concerns both the application of biopolymers and the use of valorized plant derivatives as fillers and modifiers of petrochemical polymers. Herein, the possibility of using unprocessed raw parts of two commonly used in the food industry leaves, i.e., l...

Sustainable polymer composites are progressively under development in a technological paradigm shift from "just use more and more" to "convert into value-added products". The bio-based blends based on Mater-Bi bio-plastic (A) and poly(ε-caprolactone) (B), at a weight ratio of 70:30 (A:B) were developed, followed by the addition of UFC100 cellulose...

Due to rapid economic growth, the use of plastics in almost all areas of human life has significantly increased over recent decades, leading to massive pollution. Therefore, works dealing with sustainable and biodegradable polymer materials are vital now. Herein, sustainable Mater-Bi/poly(ε-caprolactone) (PCL)-based biocomposites, filled with diiso...

The study aimed to determine the influence of shear stress during real-life industrial processes such as compression molding and injection molding to different cavities on the crystallization of the isotactic polypropylene nucleated with a novel silsesquioxane-based β-nucleating agent. Octakis(N²,N⁶-dicyclohexyl-4-(3-(dimethylsiloxy)propyl)naphthal...

Nucleating agents cause an increase in crystallization temperature, making the production of highly oriented films much more difficult. In this study, a nucleating system composed of 1,3:2,4-bis(3,4-dimethylbenzylidene) sorbitol (DMDBS) and tetrasilanolphenyl silsesquioxane (phPOSS) was used to modify isotactic polypropylene (iPP). Oriented films c...

The application of plant-based by-products from the food industry as minimally processed functional fillers for polymeric composites is an increasingly popular trend among researchers and manufacturers. While minimizing the preprocessing of lignocellulosic fillers leads to an increase in the sustainability of the overall composite and a decrease of...

The assumptions of the bioXpulTM technology for manufacturing polylactide (PLA) composites with superior thermomechanical stability and favorable mechanical properties are presented. The modification concept assumes the simultaneous modification of PLA by introducing nucleants and basalt powder and infiltration with this composition of basalt or hy...

Due to the massive plastic pollution, development of sustainable and biodegradable polymer materials is crucial to reduce environmental burdens and support climate neutrality. Application of lignocellulosic wastes as fillers for polymer composites was broadly reported, but analysis of biodegradation behavior of resulting biocomposites was rarely ex...

Thermoplastic starch (TPS) is a homogenous material prepared from native starch and water or other plasticizers subjected to mixing at a temperature exceeding starch gelatinization temperature. It shows major drawbacks like high moisture sensitivity, poor mechanical properties, and thermal stability. To overcome these drawbacks without significant...

As part of this work, research was carried out on the effect of the addition of expanded perlite (PR) on the mechanical and thermomechanical properties of high-density polyethylene (PE) composites. Composites containing from 1 to 10 wt% of the inorganic filler were produced. Polyethylene-based composites manufactured by twin-screw extrusion and for...

In this study, the influence of the addition of intumescent flame retardants (IFRs) on the non‐isothermal crystallization of high‐density polyethylene (HDPE) was studied. The investigations were carried out for polyethylene compositions containing two different IFRs, ammonium polyphosphate (APP) and a mixture of copper phosphate and melamine phosph...

In recent years, natural-based polymeric composites have gained the attention of researchers and the industry due to their low environmental impact and good applicational properties. A promising example of these materials is polylactide-based composites filled with linseed cake. Even though they can be characterized by reduced brittleness and enhan...

The research work carried out so far indicates the ever wider possibilities and demand for shaping composite products in the rotational molding technology. This trend was the main reason to use waste-based filler from the metallurgical process as a filler for manufacturing polylactide (PLA)-based remolded composites. Copper slag (CS) was introduced...

Basalt powder (BP) is a promising eco-friendly filler for polymeric composites. Due to its chemical composition, it can alter the effectiveness of various modifying agents used in the polymer industry. In this study, the influence of simultaneous addition of 5 wt% of basalt powder and 0.5 or 1 wt% of a sorbitol-based nucleating agent (NA) on the st...

The aim of this study was to develop a polyethylene/polyamide (R-PE/R-PA) regranulated product made from post-consumer wastes grafted with polyethylene-graft-maleic anhydride (PE-g-MAH) by reactive extrusion in a twin-screw extruder equipped with an external mixing zone. The compatibility effect of PE-g-MAH used as a modifier in R-PE/R-PA blends wa...

The object of the research was biodegradable hybrid composites based on poly(vinyl alcohol) (PVA), reinforced with cotton/flax woven fabric and 5–30 phr of chestnut shell powder, a waste filler. The influence of the lignocellulosic particles on mechanical, thermal, and thermomechanical properties of the composites determined in static tensile test,...

The present study aimed to analyze the application of waste material from copper production-copper slag (ŻŻL) as filler for composites based on the high-density polyethylene (HDPE). Copper slag filler was introduced in the amounts of 1-20 wt%, and its influence on the appearance (color analysis), chemical structure (Fourier-transform infrared (FTIR...

This work describes the application of mandarin peel (MP) as a waste filler for high-density polyethylene (HDPE) composites. The main goal was to investigate the impact of the filler's essential oils, which include multiple terpenes and terpenoids, on the processing, physicochemical, mechanical, and thermal properties of the composites as a functio...

In this work, thermally expanded vermiculite (TE-VMT) was surface modified and used as a filler for composites with a polylactide (PLA) matrix. Modification of vermiculite was realized by simultaneous ball milling with the presence of two PLA chain extenders, aromatic carbodiimide (KI), and 4,4’-methylenebis(phenyl isocyanate) (MDI). In addition to...

This work aims to describe the coffee silverskin effect as a lignocellulosic waste filler for high-density polyethylene (HDPE) composites development. The main task was to determine various modification effects resulting from the complex chemical composition of coffee silverskin containing compounds with potential antioxidative properties, includin...

Polylactide-based composites filled with waste fillers due to their sustainability are a subject of many current papers, in which their structural, mechanical, and thermal properties are evaluated. However, few studies focus on their behavior in low temperatures. In this paper, dynamic and quasi-static mechanical properties of polylactide-based com...

Legislative restrictions and the needs of consumers have created a demand for sustainable materials. Polylactide (PLA) is a biodegradable polyester with advantageous mechanical properties, however, due to its low crystallization rate, it also has low thermomechanical stability. Its range of application temperatures can be widened using nucleating a...

Polylactide is a highly demanded biopolymer, whose industrial application constantly increases. Its disadvantages such as brittleness and slow crystallization rate can be overcome by application of different additives. Because of environmental issues, using natural waste fillers as modifying agents for polylactide is especially interesting. In this...

Over the last years, the trend associated with the incorporation of materials from renewable resources into polymer technology is getting significantly more vital. Researchers are trying to transfer the properties of natural raw materials into the polymer world. Therefore, different natural materials are more often investigated as potential additiv...

Over the last years, the trend associated with the incorporation of materials from renewable resources into polymer technology is getting significantly more vital. Researchers are trying to transfer the properties of natural raw materials into the polymer world. Therefore, different natural materials are more often investigated as potential additiv...

Epoxy composites reinforced with flax fabric and modified with waste filler in the form of lin-seed cakes (LC) were prepared. Thermomechanical properties using the DMTA (Dynamic Mechanical Thermal Analysis), thermal properties using the TGA (Thermogravimetry) method, flexural strength, Charpy impact strength, Shore hardness and density of the compo...

Linseed cake (LC), a by‐product of oil extraction from linseed, due to high content of natural oil can be applied as a filler and modifying agent for polymeric composites. However, the presence of the flammable oil may change thermal properties of the resulting materials. The aim of this study is evaluation of the influence of oil content on flamma...

This article presents the effect of twin-screw extrusion processing parameters, including temperature and rotational speed of screws, on the structure and properties of four grades of polylactide (PLA). To evaluate the critical processing parameters for PLA and the possibilities for oxidative and thermomechanical degradation, Fourier-transform infr...

The study investigates the thermo‐mechanical properties of isotactic polypropylene (iPP) hybrid composites in reference to various amounts of particle‐ and fiber‐shaped inorganic fillers. Three grades of hybrid composites were prepared as a function of filler amount: 5, 10, and 20 wt% and different ratios of glass fiber (GF) and calcium carbonate (...

The paper presents a study of the thermomechanical behavior of polylactide (PLA) composites filled with two different types of basalt fillers: micrometric basalt fibers (BMF) and basalt powder (BP) incorporated into the polymeric matrix with the amount of 5, 10 and 20 wt%. The composites were manufactured by melt processing and subjected to the ann...

In the course of the study, polylactide (PLA)/basalt powder (BP) composites were fabricated, incorporating micrometric particle‐shaped waste filler into the biodegradable polyester matrix to obtain improved thermomechanical stability of the final products. The mechanical, thermomechanical, and thermal properties of PLA‐based composites were evaluat...

Investigations related to polymer/metal composites are often limited to the analysis of the electrical and thermal conductivity of the materials. The presented study aims to analyze the impact of aluminum (Al) filler content (from 1 to 20 wt%) on the rarely investigated properties of composites based on the high-density polyethylene (HDPE) matrix....

The novel polyurea-based (PUA) composites modified with milled basalt fibers (BMF), formed with spray coating technology were produced. The addition of 5–30 wt % of BMF into commercial two-component PUA was used as a low-cost modification which allowed to significantly improve the mechanical performance, as well as thermomechanical and thermal stab...

This paper presents the effects of accelerated weathering on the properties of polylactide (PLA) composites filled with linseed cake. The particle-shaped waste filler with different linseed oil content (0.9–39.8 wt %) was incorporated with constant amount of 10 wt % to a polymeric matrix and subjected to accelerated weathering tests with different...

The main aim of this study was to chemically modify the plant fiber surface. Hemp, flax fibers and cotton trichomes were subject of surface treatments using silanization, acetylation, benzoylation, and mercerization processes. The fiber properties were evaluated with the use of fourier transform infrared spectroscopy (FTIR), scanning electron micro...

Wood-polymer composites (WPCs) as eco-friendly materials characterized by advantageous properties are a popular alternative for conventional polymeric compositions. Even though they are widely popular and utilized in many branches of industry, some of their characteristic still remain obscure. The domain which demands better insight is tribology of...

The rheological behavior of poly(lactic acid) (PLA) composites filled with linseed cake (LC) has been investigated in relation to the amount of the filler and the fat content in the natural waste agricultural filler. Natural waste fillers characterized with 17.4 and 28.7 wt % content of linseed oil were incorporated in different amounts (5–40 wt %)...

Most of the industrial machines use round-shaped drive belts for power transfer. These drive belts are often a few millimeters in diameter, and made of thermoplastic elastomer, especially polyurethane. Their production process requires the bonding step, which is often performed by hot plate butt welding. The authors have undertaken an effort to des...

Linseed cake (LC), a byproduct of linseed oil extraction, is used as a functional filler for production of biodegradable composites. To determine the influence of residual linseed crude oil contained in lignocellulosic filler on the properties of the poly(lactic acid) (PLA)‐based composites with 5–30% filler content, two types of LC were analyzed:...

Electrically conductive polymeric composites are more and more popular as an object of scientific research and as a material applied in different branches of electric, electronic, and heating industry. Complex knowledge of their properties and behavior is needed to take full advantage of the application of these materials. This study focuses on the...

Linseed cake (LC) is a by-product of agricultural industry which does not have any large-scale industrial applications. The possibilities of its utilization as filler with plasticizing ability for high density polyethylene (HDPE)-based composites have been investigated. Composites containing 5, 10, 20 and 30 wt% of the waste filler have been prepar...

Rheological behavior of the poly(lactic acid) (PLA) composites filled with ground chestnut shell (CN) was investigated. Application of various measuring techniques: small amplitude oscillatory shearing rheometry and capillary rheometry, allowed to determine in detail changes of rheological behavior and potential processing limitations of fully biod...

Polypropylene composites filled with inorganic fillers are widely used due to their good mechanical and thermal properties. The modification efficiency of filler incorporated into thermoplastic polymer strongly depends on its shape and dimension. Therefore, the development of novel hybrid composites modified with particle and fibrous shaped fillers...

Electrically conductive polymer composites (CPCs) containing a carbonaceous filler and a polymeric matrix have been widely researched and utilized. Immiscible polymers are often used as the matrix of CPCs, which leads to segregated structures, hence low percolation threshold and good conductivity of a material. Polymeric blends often show low mecha...

Utilization of ecological materials for appliances and products is one of the ways to achieve the goal of sustainability.Wood-polymer composites as a cheap, lightweight, durable and esthetic material has gained attention of scientists, engineers and consumers alike. Different kinds of polymeric matrices, plants used as the fillers, chemical of phys...