Tomasz Rydzkowski

Tomasz Rydzkowski
Koszalin University of Technology · Department of Mechanical Engineering

DSc, PhD. Eng.

About

65
Publications
19,408
Reads
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507
Citations
Citations since 2016
28 Research Items
479 Citations
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2016201720182019202020212022020406080100120140
2016201720182019202020212022020406080100120140
2016201720182019202020212022020406080100120140
Introduction
Tomasz Rydzkowski currently works at the Department of Mechanical Engineering, Koszalin University of Technology in Koszalin. Tomasz does research in Mechanical Engineering and Materials Engineering. Their current project is polymer recycling, polymer composites processing, packaging materials biodegradation, and also Backery - bread backing engineering and technology.
Additional affiliations
October 2014 - October 2018
University of Warmia and Mazury in Olsztyn / Koszalin University of Technology
Position
  • Professor (Associate)
January 2010 - December 2011
Kazimierz Wielki University in Bydgoszcz
Position
  • Senior Researcher
Description
  • grant N N508 440536 Research on increasing of energetic effectiveness of polymer and biomaterials crumbling
January 2005 - December 2007
Koszalin University of Technology
Position
  • Group Leader
Description
  • grant 3T08E 02029 Research on applying the screw-disc extruder for polymers from recycling. Leader of the project.
Education
June 2001 - June 2001
Koszalin University of Technology
Field of study
  • Machine Building and Exploitation
September 1988 - December 1993
Wyższa Szkoła Inżynierska w Koszalinie
Field of study
  • Machine Building and Exploitation, Chemical and Food Processing Machinery

Publications

Publications (65)
Article
Fossil-fuel-based plastics have many enticing properties, but their production has resulted in significant environmental issues that require immediate attention (Ates et al., 2020; Beluns et al., 2021; Daminabo et al., 2020). Despite the fact that these polymers are manmade, some bacteria can degrade and metabolise them, suggesting that biotechnolo...
Article
Full-text available
The aim of this paper was to determine the roughness and Vickers hardness of popular composite materials used for direct tooth fillings. The tests were carried out on the surfaces of samples previously polished with traditional silicone polishing rubbers and discs used in dentistry. The testing methodology and software used for statistical analysis...
Article
Full-text available
The article presents current stage and new tendencies noticeable in packagings for medical applications. New packagings for drugs and medical products are characterised by modern design and new features. They have attractive appearance and great usability. It is usually accompanied by functional materials and unfortunately by a higher price. In the...
Article
Full-text available
This article describes the technology of organic recycling of polylactide/halloysite biocomposites using the sugar- protein condensation theory. For this purpose, polymer biocomposites were produced with a polylactic acid structure and reinforced in the form of halloysite nanoparticles by 1; 2.5; and 5% by mass. A new method of decomposition of the...
Article
Full-text available
In this article, we report in detail the use of protective gases to extend the shelf-life of polymer-film-packed foodstuff and reduce the most typical bacteria and microorganisms that negatively affect the quality and lifetime of a given packaging. This article provides significant information about the most important advantages of using protective...
Conference Paper
Wind energy is an emerging as well as a flourishing source of green energy. An introduction to wind energy has been made and a comparison is done between vertical and horizontal axis wind turbines. The core objective of the study is a compilation of the findings related to life cycle assessment of horizontal axis wind turbines regarding the sustain...
Article
In this work, the influence of enzymatic modification on the properties of nanocellulose reinforced polypropylene nanocomposites was investigated in detail. Methods such as high-performance liquid chromatography coupled with a refractometric detector, differential scanning calorimetry, X-ray diffraction, dynamic light scattering, and optical micros...
Article
Full-text available
Recently, biocomposites have emerged as materials of great interest to the scientists and industry around the globe. Among various polymers, polylactic acid (PLA) is a popular matrix material with high potential for advanced applications. Various particulate materials and nanoparticles have been used as the filler in PLA based matrix. One of the ex...
Article
Full-text available
The aim of the present study is to examine the effect of the addition of carbon nanoparticles (σsp2 hybridization) on the mechanical properties of foamed polystyrene. In this work, we focus on the study of the impact of compressive stress, tensile strength, bending strength, thermal conductivity ratio (λ), and water absorption of expanded polystyre...
Conference Paper
Full-text available
Modern medical instruments due to the fact that they have direct contact with the human body and may be the cause of allergies, inflammatory conditions as well as unnecessary additional pain should be made of appropriate material and should have a shape that ensures adequate functionality and durability, minimizes tissue damage and pain accompanyin...
Article
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Waste and associated risks are becoming an increasingly noticeable problem in environmental protection in our time. The management of especially industrial waste is a difficult and at the same time a significant problem. Incineration is the basic process of thermal utilization. The combustion process is not neutral for the environment, and is assoc...
Article
Changes in the surface topography of polymeric materials can be analyzed to find the correspondence between observed surface features and specific external factors that might also influence physical and functional properties of the investigated material. In this work, atomic force microscopy (AFM) measurements were carried out to investigate the th...
Article
Full-text available
Innovative solutions using biopolymer-based materials made of several constituents seems to be particularly attractive for packaging in biomedical and pharmaceutical applications. In this direction, some progress has been made in extending use of the electrospinning process towards fiber formation based on biopolymers and organic compounds for the...
Article
Full-text available
In this work, the flow properties of low-density polyethylene melt studied experimentally in a single-bore capillary rheometer and numerically using POLFLOW - Ansys software based on a finite element, through the generalized Newtonian fluid. Both experimental and numerical works are performed according to the power law model. A series of capillary...
Article
This article presents the methodology for the Pt/Al and Pt/Al nanolaminates production as well as Pt + Al composites using two magnetrons by preparing the oxide-metal composites through high temperature oxidation of nanofilms deposited by PVD method on a metal substrate. In this article, we described the nanostructures obtained as a result of PVD t...
Article
Full-text available
The search for new polymer processing ways has become necessary due to the rapidly growing technology and market needs. The time of manufacturing products, as well as the impact of process parameters and the design itself on the properties of materials have become very important. Therefore, the creation of assumptions allowing the construction of a...
Article
Full-text available
In recent years lean thinking (also referred as slim ) increases its popularity not only in industry, but also in the entire business world. There are many confirmed effects demonstrating the high effectiveness of this philosophy: a clear improvement of economic indicators, an increase in current satisfaction and the acquisition of new clients; bet...
Article
Full-text available
Plastics based materials are frequently used in packaging and can be seen universally in both the developed and developing societies. At present, most of the currently used food packaging materials are non-degradable and are creating serious environmental problems. New technologies are being explored and developed to study the complex interaction b...
Article
Full-text available
The general purpose of this thesis was to define of toughness and physical properties of the wood – polymer composites obtained by the two methods of extruding, classic screw and screw – disc. The influence of three process parameters were rated: the width of the chink of disc zone (Ws), speed of the screw (n) and mass participation of wood fractio...
Article
Full-text available
The use of recycled materials can address some of the issues associated with the cost and environmental implications of non-renewable materials. So the prime aim of this work was to determine the thermodynamic changes in the polypropylene (PP) mixtures depending on the percentage amount of different origin recyclates for sustainable nanocomposites....
Article
Independing on the case, nanomaterials are very important in the field of food packaging, medicines and dietary supplements. Modern food packagings often contain nanoparticles that provide new features for packagings; nanoparticles can activate mainly the packaging inner surface. In the nature, carbon occurs in several allotropic forms, such as dia...
Article
Polymer composites are composed of different materials that have been found to affect the different functional properties of the obtained products. One of the most interesting example in this field is wood-polymer composites (WPC), where the solid phase is composed of different origins and wood flour. Regardless of the dimensions of wood particles,...
Article
The article presents the results of research on the impact of the disk zone conditions on the mechanical properties of wood-polymer composites. The influence of three process parameters were varied: the width of the chink of disc zone (W-s), screw speed of the screw (n) and mass participation of wood fraction (i <= 70 wt %). The results showed that...
Article
Full-text available
The article presents the results of research on changes in humidity of wood chips intended for the of wood-polymer composites (WPC) manufacture. In the studies were used wood chips of various origin (coniferous and deciduous wood) and the various forms (from dust-meal, through small chips on big chips). Measured moisture content of chips during dry...
Article
Full-text available
The article presents a dynamically developing methods and techniques of plastic elements joining. Welding is the basic technique of thermoplastics junction. Laser welding is characterized by very interesting features.
Data
Full-text available
Article
Celem przedstawionych badań było określenie trwałości i zmian przechowalniczych świeżej, rozdrobnionej czerwonej papryki pakowanej w atmosferze gazów ochronnych MAP. Materiał badawczy stanowiła krojona czerwona papryka klasy I pochodząca z Hiszpanii, zapakowana techniką MAP (mieszanina 5% O2, 5% CO2, 90% N2) w torebki z BOPP (dwuosiowo orientowany...
Article
Full-text available
The paper presents the summary of research on polymer melt particle motion trajectories in a disc zone of a screw-disk extruder. We analysed two models of its structure, different in levels of taken simplifications. The analysis includes computer simulations of material particle flow and results of experimental tests to determine the properties of...
Article
W artykule przedstawiono wpływ wybranych metod wytwarzania regranulatu wykonanych z zadrukowanej folii LDPE na ich jakość. Jakość regranulatów określono na podstawie stopnia homogenizacji i odgazowania, a także poziomu czystości (występowanie wtrąceń typu piasek, papier itp.).
Article
Full-text available
Niniejszy artykuł obejmuje opis metodyki i analizę wyników badań zmiany barwy następującej wskutek wielokrotnego wytłaczania LDPE. Zmiany barwy w skali CIE-Lab określono przy po-mocy kolorymetru Lovibond RT100
Conference Paper
Full-text available
Computer techonologies have great possibilities concerning aided design as well as acquisition and management of data about the process from the point of view of generating constructional guidelines and ordering knowledge from a given field – encoding (codification) and undeline the innovative design of grinders. CAD, CAE and GA tools have been use...
Article
W artykule przedstawiono ocenę właściwości przetwórczych i fizykochemicznych polipropylenu (PP) uplastycznionego podczas wytłaczania ślimakowo – tarczowego. Zbadano stopień oddziaływania mechanizmu tarczowego i ruchu cząstki w szczelinie tarczowej wytłaczarki ślimakowo – tarczowej na właściwości materiału. Uzyskane wyniki porównano z wynikami pomia...
Article
W artykule przedstawione zostały metody oceny autotermiczności wytłaczarki ślimakowo-tarczowej. Jednym z zagadnień jest określenie kryterium elementarnego i kompleksowego oceny autotermiczności wytłaczarki ślimakowo-tarczowej, a drugim określenie przestrzeni, w której występuje autotermiczność, a także określenie jej wpływu na uplastycznianie i jed...
Article
Full-text available
Artykuł zawiera wyniki badań wpływu szczeliny tarczowej wytłaczarki ślimakowo-tarczowej na jednorodność i właściwości mechaniczne mieszanin LDPE i recyklatu. W żadnym z analizowanych przypadków wytłaczania klasycznego i ślimakowo-tarczowego, nie nastąpiło idealne wymieszanie. W przypadku klasycznej wytłaczarki regranulat gromadził się w postaci cie...
Article
Full-text available
Omówiono genezę i teoretyczne podstawy własnej konstrukcji autotermicznej wytłaczarki ślimakowo-tarczowej, charakteryzując przy tym cechy geometryczne oraz możliwości przetwórcze takiego urządzenia, wykorzystanego w opisywanej pracy doświadczalnej. Przedstawiono wnioski z wyników badań symulacyjnych dotyczących pomiarów ciśnienia i temperatury twor...
Article
Full-text available
The genesis and theoretical fundamentals of the own construction of autothermal screw-disc extruder are discussed. The geometrical features and processing possibilities of such equipment, used in experimental work (Fig. 2) are described. The conclusions drawn from simulations concerning pressure and temperature of polymer (PE-LD) on screw surfaces...
Article
Quantitative and qualitative mixtures of recycled polymers (PE-LD, PE-HD, PP, PS) have been prepared using a home-made screw-disc extruder and their properties studied (Table 1, Fig. 2). The extrudates obtained at clearance between the screw face and cylinder head ranging from 0.3-3.0 mm were evaluated on the basis of the degree of homogeneity in t...
Article
The genesis and theoretical fundamentals of the own construction of autothermal screw-disc extruder are discussed. The geometrical features and processing possibilities of such equipment, used in experimental work (Fig. 2) are described. The conclusions drawn from simulations concerning pressure and temperature of polymer (PE-LD) on screw surfaces...
Article
Full-text available
Experimental effect of a screw disc clearance size on the homogenisation level and the mechanical properties of extrudate obtained using the mixture of original low density polyethylene (LDPE) and commercial LDPE recyclate were discussed in the present paper. For the purpose of experiments a screw disc extruder was applied. Some tensile tests resul...

Questions

Questions (2)
Question
I am settling down a new experimental research. Planning to degrade some composites (polyolefins based WPC with PLA share) in salt water environment, with UV(A and B) irradiation and in "normal" light. Looking for smart tips and some literature.
Thanx in advance.
Question
I am trying to setup a new experiment in the direction of polymers and biocomposites biodgradation.

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Projects

Projects (7)
Project
Research on biodegradation of materials.
Project
Evaluation and implementation of screw-disc extrusion in polymer processing and recycling