Search results for: POLYMERIC BRUSH

• Polymers

  Journals

  ISSN: 2073-4360

• POLYMERS & POLYMER COMPOSITES

  Journals

  ISSN: 0967-3911

• CARBOHYDRATE POLYMERS

  Journals

  ISSN: 0144-8617 , eISSN: 1879-1344

• POLYMER TESTING

  Journals

  ISSN: 0142-9418 , eISSN: 1873-2348

• POLYMER

  Journals

  ISSN: 0032-3861 , eISSN: 1873-2291

• Experimental Research on Insufficient Water Lubrication of Marine Stern Tube Journal Bearing with Elastic Polymer Bush

  Publication

  • A. Barszczewska

  - Polish Maritime Research - Year 2020

  Water-lubricated bearings with polymer bushes are steadily gaining popularity due to their advantages, including environmental friendliness, relatively simple construction and long-term operation. Nevertheless, in practice instances of damage to such bearings occur due to insufficient or absent flow of the lubricating agent. In this study, experimental tests established that elastic polymer bush bearing is capable of operating...

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• JOURNAL OF POLYMERS AND THE ENVIRONMENT

  Journals

  ISSN: 1566-2543 , eISSN: 1572-8900

• POLYMER DEGRADATION AND STABILITY

  Journals

  ISSN: 0141-3910 , eISSN: 1873-2321

• POLYMER BULLETIN

  Journals

  ISSN: 0170-0839 , eISSN: 1436-2449

• Water Footprint Assessment of Selected Polymers, Polymer Blends, Composites, and Biocomposites for Industrial Application

  Publication

  • J. Korol
  • A. Hejna
  • D. Burchart-Korol
  • B. Chmielnicki
  • K. Wypiór

  - Polymers - Year 2019

  This paper presents a water footprint assessment of polymers, polymer blends, composites, and biocomposites based on a standardized EUR-pallet case study. The water footprint analysis is based on life cycle assessment (LCA). The study investigates six variants of EUR-pallet production depending on the materials used. The system boundary included the production of each material and the injection molding to obtain a standardized...

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• Numeryczna analiza trójwymiarowego przepływu w polimerowym łożysku smarowanym wodą = Numerical analysis of three dimensional flow in water lubricated bearing with polymer bearing bush

  Publication

  • P. Flaszyński
  • W. Litwin

  - TRIBOLOGIA - Year 2007

  W referacie przedstawiono wyniki obliczeń łożysk smarowanych wodą w oparciu o metodę CFD - obliczeniowej mechaniki płynów. Wykazano przydatność nowoczesnych narzędzi obliczeniowych do rozwiązywania podobnych problemów.

• EUROPEAN POLYMER JOURNAL

  Journals

  ISSN: 0014-3057 , eISSN: 1873-1945

• JOURNAL OF APPLIED POLYMER SCIENCE

  Journals

  ISSN: 0021-8995 , eISSN: 1097-4628

• REACTIVE & FUNCTIONAL POLYMERS

  Journals

  ISSN: 1381-5148 , eISSN: 1873-166X

• POLYMER COMPOSITES

  Journals

  ISSN: 0272-8397 , eISSN: 1548-0569

• Problems of analytical determination of journal bearing bush fatigue strength estimates

  Publication

  • R. Gawarkiewicz
  • J. Sikora
  • B. Siwek

  - Key Engineering Materials - Year 2012

  Problems connected with determination of stress distribution in sliding layer of thinwalled bearing bushes, investigated in bearing fatigue test rigs, have been presented. Using an example of plain bearings tested in the fatigue machine SMOK (built at the Gdask University of Technology) problems with obtaining a convergence of iterative procedure for determining the fatigue strength estimators of bearing alloy surface layer are...

• On the Equations of the Surface Elasticity Model Based on the Theory of Polymeric Brushes

  Publication

  • R. Gerasimov
  • T. Petrova
  • V. Eremeev
  • A. Maximov
  • O. Maximova

  - Year 2019

  Motivating by theory of polymers, in particular, by the models of polymeric brushes we present here the homogenized (continual) two-dimensional (2D) model of surface elasticity. A polymeric brush consists of an system of almost aligned rigid polymeric chains. The interaction between chain links are described through Stockmayer potential, which take into account also dipole-dipole interactions. The presented 2D model can be treated...

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• New Polymeric Materials for Solid Phase Extraction

  Publication

  • J. Płotka-Wasylka
  • M. Marć
  • N. Jatkowska
  • J. Namieśnik

  - CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY - Year 2017

  Solid phase extraction (SPE) is a popular sample preparation technique, which can be applied directly in gas–solid phase and liquid–solid phase, or indirectly to solid samples by using, e.g., thermodesorption with subsequent chromatographic analysis. Although SPE can be described as a physical extraction process involving a liquid phase and a solid phase, the increased use of packed sorbent formats seems to have led to a bias toward...

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• ACTA POLYMERICA SINICA

  Journals

  ISSN: 1000-3304

• E-POLYMERS

  Journals

  ISSN: 1618-7229

• PLASMAS AND POLYMERS

  Journals

  ISSN: 1084-0184

• Ionophores in polymeric membranes for selective ion recognition:impedance studies

  Publication

  • A. Lisowska-Oleksiak
  • U. Lesińska
  • A. Nowak
  • M. Bocheńska

  - ELECTROCHIMICA ACTA - Year 2006

  W pracy badano dwa typy elektrod: membranowe elektrody jonoselektywne (ISE) oraz elektrody nowego typu all-solid-state (AAS). Elektrody AAS zawierają przewodzącą warstwę polimerową na węglu szklistym lub platynie, na który nałożona jest membrana zawierająca jonofor. Do badań użyto dwa jonofory: p-tert-butylokaliks[4]aren-korona-4 (L1) selektywnie kompleksująca jony Na+ oraz kaliks[4]aren-korona-6 (L2) selektywnie kompleksująca...

• Novel cast polyetherurethanes based on dispersed polymeric polyols

  Publication

  • E. Głowińska
  • J. Datta
  • J. F. Rodríguez
  • D. Simón
  • M. Carmona

  - POLYMER TESTING - Year 2018

  Our study was focused on obtaining polyetherurethanes synthesized with using polymeric polyether based polyols differing in dispersed copolymer content (10, 20 and 40 wt%). The polyetherurethane materials were synthesized via two step method. The influence of different polymeric polyether based polyols on the chemical structure, morphology, mechanical and thermal properties of the obtained polyetherurethanes was investigated. The...

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• Influence of bush wear in water lubricated marine stern tube bearings with shaft misalignment

  Publication

  • W. Litwin

  - Year 2013

  Water lubricated propeller shaft bearings are frequently employed on modern ships due to their advantages such as durability, simplicity and low price. Specific working conditions on ships cause shaft misalignment which often results in rapid wearing of bush and shaft. Shaft misalignment could be an effect of manufacturing or assembly faults but sometimes it appears due to hull or shaft deformation. The wearing process has influence...

• Influence of Bearing Bush Geometry on Properties of Water Lubricated Marine Main Shaft Bearings

  Publication

  • W. Litwin

  - Year 2009

  W pracy przedstawiono wpływ geometrii smarowanego wodą, okrętowego łożyska ślizgowego wału głównego na jego własności hydrodynamiczne.Wykazano, że wielkość luzu łożyskowego, położenie oraz liczba rowków smarnych mają znaczący wpływ na nośnosć łożyska.

• Influence of local bush wear on water lubricated sliding bearing load carrying capacity

  Publication

  • W. Litwin

  - TRIBOLOGY INTERNATIONAL - Year 2016

  One of main problems concerning water-lubricated bearings is their durability. There are known cases of bearings with life time measured in decades, and some, whose refurbishment was necessary just days after start-up. Obtaining stable fluid film friction plays key role in the durability of these bearings. Unfortunately, their load-carrying capacity is limited due to water's low-viscosity. The conducted experimental...

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• Influence of local bush wear on properties of water lubricated marine stern tube bearings

  Publication

  • W. Litwin

  - Polish Maritime Research - Year 2011

  W artykule przedstawiono propozycję metody obliczania łożysk ślizgowych smarowanych cieczą o niskiej lepkości (wodą) w których doszło do lokalnego zużycia panwi. Proponowana metoda uwzględnia sprężystą deformację panwi (model EHL) oraz zmianę geometrii będącą wynikiem zużycia.

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• JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY

  Journals

  ISSN: 0887-624X , eISSN: 1099-0518

• Shaft Misalignment Influence on Water Lubricated Turbine Sliding Bearings with Various Bush Modules of Elasticity

  Publication

  • W. Litwin
  • A. Olszewski
  • M. Wodtke

  - Key Engineering Materials - Year 2012

  W artykule przeanalizowano wpływ wielkości przenoszenia osi wału względem panwi na nośność łożyska. Analizie poddano łożyska z odmiennymi rodzajami panwi o różnej sztywności.

• An analytic approach to the conductance and I-V characteristics of polymeric chains

  Publication

  • T. Kostyrko

  - JOURNAL OF PHYSICS-CONDENSED MATTER - Year 2002

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• Behaviour of asymmetric structures with base isolation made of Polymeric Bearings

  Publication

  • T. Falborski
  • R. Jankowski

  - Year 2014

  Earthquake-induced ground motions are the most severe and unpredictable threats to the structures all around the world. Seismic excitations cause a lot of damage in a wide variety of ways, leaving thousands of casualties in their wake. During the last few years alone, the world has witnessed many major earthquakes, five of which have caused far-reaching consequences of a national scale for Haiti (January 2010), Chile (February...

• Ionophores in polymeric membranes for selective ion recognition; impedance studies

  Publication

  • A. Lisowska-Oleksiak
  • U. Lesińska
  • A. Nowak
  • M. Bocheńska

  - Year 2005

  Badania impedancyjne membran zawierających jonofory selektywne na kation Na+ (L1) i Cs+(L2) wykazały, ze stala dielektryczna materiału membrany zależy od typu uzytego plastyfikatora i zmienia się w zakresie od 28 do 60. Rezystancja membran zawierających ligand L1 i L2 wynosi 0.15 -1.4 Mohm w zależności od stężenia elektrolitu zewnnetrznego. Testowona dwa typy elektrod jonoselektywnych: elektrody typu ASS z polimerem przewodzącym...

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• Electronic excitation energy migration in partly ordered polymeric films

  Publication

  • P. Sas-Bojarski
  • J. Synak
  • L. Kułak
  • A. Kubicki

  - JOURNAL OF FLUORESCENCE - Year 2006

  Wieloetapowa migracja energii pomiędzy podłużnymi fluoroforami (karbocyjaniny) w osiowo rozciąganych foliach polimerowych była studiowana na podstawie pomiarów anizotropii emisji i symulacji Monte Carlo. W przeciwieństwie do układów nieuporządkowanych pokazano eksperymentalnie, że stężeniowa depolaryzacja fluorescencji w osiowo orientowanych foliach jest ekstremalnie słaba, mimo tego, że zachodzi zjawisko migracji energii. Opierając...

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• Behaviour of Asymmetric Structure with Base Isolation Made of Polymeric Bearings

  Publication

  • T. Falborski
  • R. Jankowski

  - Year 2016

  Earthquake-induced ground motions are the most severe and unpredictable threats to the structures all around the world. Seismic excitations cause a lot of damage in a wide variety of ways, leaving thousands of casualties in their wake. Due to randomness of earthquake occurrence, lack of visible causes and their power of destructiveness, structural engineers need to develop new technical solutions and protection systems against...

• Modeling and Evaluation of Electric Treeing Phenomena in Polymeric Cable Insulation

  Publication

  • Q. Khan
  • S. S. Refaat
  • H. Abu-Rub
  • H. Toliyat
  • M. Olesz

  - Year 2021

  This paper investigates the treeing phenomenon in polymeric materials such as crosslinked polyethylene (XLPE) that is widely used in medium and high voltage power cables as primary insulation. The modeling of electrical tree growth in the insulation from its initiation to breakdown is significant research work that illustrates the discharge dynamics and its impact on aging process in polymeric insulation. This study utilizes pulse...

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• POLYMER-KOREA

  Journals

  ISSN: 0379-153X

• POLYMER INTERNATIONAL

  Journals

  ISSN: 0959-8103 , eISSN: 1097-0126

• Polymer Crystallization

  Journals

  eISSN: 2573-7619

• POLYMER JOURNAL

  Journals

  ISSN: 0032-3896 , eISSN: 1349-0540

• Polymer News

  Journals

  ISSN: 0032-3918

• WATER LUBRICATED MAIN SHAFT BEAR INGS WITH THREE LAYER BUSH – MODERN SOLUTION FOR MARINE INDUSTRY

  Publication

  • W. Litwin
  • M. Iwao
  • H. Noriaki

  - Year 2016

  Water lubricated sliding bearings are increasingly popular in marine and hydro power industry. Such popularity is partly due to their simple construction which also means a relatively affordable price. Properly designed and installed water lubricated bearings may well last for over a decade. During the last decade their traditional range has been expanded with new, modern products like three layer bearing bush. The work presents...

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• Sliding bearings with sintered bronze bush lubricated by contaminated water with solid particles – Theoretical and experimental studies

  Publication

  • W. Litwin
  • S. Kropp

  - WEAR - Year 2023

  Sliding journal bearings lubricated with water coming directly from the environment are a solution used in shipbuilding, pumps and hydropower. However, the working fluid or surrounding water cannot always be filtered because of design limitations, which often causes the problem of premature wear of these sensitive bearings. The research conducted made it possible to assess the wear of sliding bearings lubricated with water containing...

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• Reduction of vibrations of steel structure models with Polymeric Bearings - experimental study

  Publication

  • T. Falborski
  • R. Jankowski

  - Year 2014

  Earthquake-induced ground motions are the most severe and unpredictable threats to the structures all around the world. Therefore, designing earthquake protective systems has become an extremely challenging problem in civil engineering. Base isolation is one of the most popular and widely adopted methods of protecting structures against earthquake forces. The present paper reports the results obtained from the shaking table experimental...

• Compatibilization of polymeric composition filled with ground tire rubber – short review

  Publication

  • M. Formela
  • J. Haponiuk
  • L. Jasińska-Walc
  • K. Formela

  - Chemistry & Chemical Technology - Year 2014

  Waste rubber is recognized as valuable materials resource and searching for new recycling methods is the main activity of many research institutions and companies. At the turn of the last years only few scientific papers about foamed polymer compositions filled with ground tire rubber were published. In paper review about progress in compatibilization and foaming of polymeric compositions filled with ground tire rubber.

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• Size-Dependent in Vitro Biocompatibility and Uptake Process of Polymeric Carbon Nitride

  Publication

  • M. Aleksandrzak
  • M. Jedrzejczak-Silicka
  • K. Sielicki
  • K. Piotrowska
  • E. Mijowska

  - ACS Applied Materials & Interfaces - Year 2019

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• Bifunctional Polymeric Carbon Nitride via Tuning Fabrication Conditions for Photocatalysis

  Publication

  • M. Aleksandrzak
  • D. Baranowska
  • W. Kukulka
  • M. Onyszko
  • B. Zielinska
  • W. Kukułka
  • E. Mijowska

  - Catalysts - Year 2021

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• Highly antifouling polymer-nanoparticle-nanoparticle/polymer hybrid membranes

  Publication

  • V. Vatanpour
  • M. Jouyandeh
  • S. S. Mousavi Khadem
  • S. Paziresh
  • A. Dehghan
  • M. Ganjali
  • H. Moradi
  • S. Mirsadeghi
  • A. Badiei
  • M. T. Munir... and 7 others

  - SCIENCE OF THE TOTAL ENVIRONMENT - Year 2022

  We introduce highly antifouling Polymer-Nanoparticle-Nanoparticle/Polymer (PNNP) hybrid membranes as multi-functional materials for versatile purification of wastewater. Nitrogen-rich polyethylenimine (PEI)-functionalized halloysite nanotube (HNT-SiO2-PEI) nanoparticles were developed and embedded in polyvinyl chloride (PVC) membranes for protein and dye filtration. Bulk and surface characteristics of the resulting HNT-SiO2-PEI...

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• Application of the X-ray micro computed tomography to the analysis of the structure of polymeric materials

  Publication

  • P. Szewczykowski
  • Ł. Skarżyński

  - Polimery - Year 2019

  In this paper the application of X-ray micro-computed tomography (micro-CT) as a non-destructive testing method of polymeric materials is presented. Increasing applicability of polymers in va­riedend-use industries such as automotive, building and construction, consumer goods, and packaging is propelling the growth of the global polymer processing market. However, controlling of the polymer structure is one of the most important...

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• Express Polymer Letters

  Journals

  ISSN: 1788-618X

• IRANIAN POLYMER JOURNAL

  Journals

  ISSN: 1026-1265 , eISSN: 1735-5265