Academic literature on the topic 'Polyether resins'

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Journal articles on the topic "Polyether resins"

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Bamane, Swapnil S., Prashik S. Gaikwad, Matthew S. Radue, S. Gowtham, and Gregory M. Odegard. "Wetting Simulations of High-Performance Polymer Resins on Carbon Surfaces as a Function of Temperature Using Molecular Dynamics." Polymers 13, no. 13 (June 30, 2021): 2162. http://dx.doi.org/10.3390/polym13132162.

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Resin/reinforcement wetting is a key parameter in the manufacturing of carbon nanotube (CNT)-based composite materials. Determining the contact angle between combinations of liquid resin and reinforcement surfaces is a common method for quantifying wettability. As experimental measurement of contact angle can be difficult when screening multiple high-performance resins with CNT materials such as CNT bundles or yarns, computational approaches are necessary to facilitate CNT composite material design. A molecular dynamics simulation method is developed to predict the contact angle of high-performance polymer resins on CNT surfaces dominated by aromatic carbon, aliphatic carbon, or a mixture thereof (amorphous carbon). Several resin systems are simulated and compared. The results indicate that the monomer chain length, chemical groups on the monomer, and simulation temperature have a significant impact on the predicted contact angle values on the CNT surface. Difunctional epoxy and cyanate ester resins show the overall highest levels of wettability, regardless of the aromatic/aliphatic nature of the CNT material surface. Tetrafunctional epoxy demonstrates excellent wettability on aliphatic-dominated surfaces at elevated temperatures. Bismaleimide and benzoxazine resins show intermediate levels of wetting, while typical molecular weights of polyether ether ketone demonstrate poor wetting on the CNT surfaces.
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Lee, Lung-Ta, and Chin-Ping Yang. "Synthesis and properties of cationic resins derived from polyether/polyester-modified epoxy resins." Journal of Applied Polymer Science 46, no. 6 (October 25, 1992): 991–1000. http://dx.doi.org/10.1002/app.1992.070460607.

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Laney, E. Elizabeth, Joung Hae Lee, Jong Seung Kim, Xiaowu Huang, Youngchan Jang, Hong-Sik Hwang, Takashi Hayashita, and Richard A. Bartsch. "Sorption of lead(II) by proton-ionizable polyether resins." Reactive and Functional Polymers 36, no. 2 (March 1998): 125–34. http://dx.doi.org/10.1016/s1381-5148(97)00108-9.

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Viswanathan, Tito, Alan Toland, and Rui-Qin Liu. "Whey-based polyether polyols as modifiers of phenol—formaldehyde resins." Carbohydrate Polymers 28, no. 3 (November 1995): 203–7. http://dx.doi.org/10.1016/0144-8617(95)00122-0.

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Kofler, Lukas, Markus Wambacher, Katrin Schweinzer, Maritta Scherl, and Heinz Kofler. "Allergic Reaction to Polyether Ether Ketone Following Cross-Reactivity to Epoxy Resin." Journal of Cutaneous Medicine and Surgery 21, no. 1 (August 20, 2016): 78–79. http://dx.doi.org/10.1177/1203475416665606.

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Polyether ether ketone (PEEK) is a thermoplastic polymer frequently used in engineering but also in medical devices. Only 1 case of allergic reaction to PEEK used as an implanted medical device has been reported so far; however, the route of sensitization remained unclear. Here we report on a 62-year-old male patient with a preknown, severe type IV allergy to epoxy resin. He reported strong pain in his shoulder after implantation of a PEEK-containing device after a rotator cuff injury. For testing, the device was implanted in a small pouch subcutaneously on the abdomen. The patient reported massive pain starting 8 hours after the implantation, strictly limited to the procedural area and showing perifocal erythema. A possible explanation of the sensitization mode is the source material for PEEK and epoxy resin, as both are mainly based on bisphenols. An allergic reaction to PEEK with preknown epoxy resin sensitization has not been reported so far. As epoxy resins are a frequent cause of occupational contact dermatitis and PEEK is widely used for medical and nonmedical devices, we believe that this is of great clinical relevance.
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Ebner, Catharina, Julia Mitterer, Joamin Gonzalez-Gutierrez, Gisbert Rieß, and Wolfgang Kern. "Resins for Frontal Photopolymerization: Combining Depth-Cure and Tunable Mechanical Properties." Materials 14, no. 4 (February 5, 2021): 743. http://dx.doi.org/10.3390/ma14040743.

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Photopolymerization has undergone significant development in recent years. It enables fast and easy processing of materials with customized properties and allows precise printing of complex surface geometries. Nevertheless, photopolymerization is mainly applied to cure thin films since the low curing depth limits the fast production of large volumes. Frontal photopolymerization (FPP) is suitable to overcome these limitations so that curing of centimeter-thick (meth)acrylic layers can be accomplished within minutes by light induction only. Prerequisites, however, are the low optical density of the resin and bleaching ability of the photoinitiator. To date, tailored FPP-resins are not commercially available. This study discusses the potential of long-chain polyether dimethacrylates, offering high-temperature resistance and low optical density, as crosslinkers in photobleaching resins and investigates the mechanical properties of photofrontally-cured copolymers. Characteristics ranging from ductile to hard and brittle are observed in tensile tests, demonstrating that deep curing and versatile material properties are achieved with FPP. Analyzed components display uniform polymerization over a depth of four centimeters in Fourier transform infrared spectroscopy and swelling tests.
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Yin, Hao, Yun Wan, Jinjun Zhou, Dewen Sun, Bo Li, and Qianping Ran. "Self-emulsified waterborne epoxy hardener without acid neutralizers and its emulsifying and curing properties." Pigment & Resin Technology 48, no. 3 (May 7, 2019): 223–28. http://dx.doi.org/10.1108/prt-06-2017-0058.

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Purpose The purpose of this study is to prepare a new self-emulsified waterborne epoxy hardener which can emulsify the liquid epoxy resin in aqueous media without addition of acid neutralizers. Design/methodology/approach Two synthetic steps were adopted to prepare novel self-emulsified amine-epoxy adduct type hardener composition based on the reaction of a commercially available polyetheramine, bisphenol A epoxy resin and triethylene tetramine. The different factors affecting the synthesis of the waterborne epoxy hardener were explored by emulsifying and curing properties. The process and products were analyzed and confirmed by FIRT. Findings Compared to an introduction of polyether as a hydrophilic segment in previous literature, whose reaction required Lewis acid catalysts and strict control of the presence of water, the introduction of polyetheramine to obtain a novel self-emulsified waterborne epoxy hardener were concise and convenient by mere two amine-epoxy addition steps in this research. Moreover, the final product offered good film formation with a practical value of mechanical properties, glass transition temperature and water-resistant property. Practical implications The self-emulsified waterborne epoxy hardener can be used to prepare water-resistant waterborne coatings from liquid epoxy resins while also providing the option of zero VOC formulations. Originality/value Introduction of hydrophilic polyether amine to prepare self-emulsified waterborne epoxy hardener without acid neutralizers has not been systematically studied previously.
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TOYA, Hideki. "Synthesis of Polythiol Prepolymer Containing Polyether-Structure and Properties of Cured Resins." KOBUNSHI RONBUNSHU 49, no. 5 (1992): 455–58. http://dx.doi.org/10.1295/koron.49.455.

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Theiler, Stefan, Stefanos E. Diamantouros, Stefan Jockenhoevel, Helmut Keul, and Martin Moeller. "Synthesis and characterization of biodegradable polyester/polyether resins via Michael-type addition." Polymer Chemistry 2, no. 10 (2011): 2273. http://dx.doi.org/10.1039/c1py00262g.

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Juraev, A. B., F. A. Magrupov, and M. G. Alimukhamedov. "Hardening condition of unsaturated polyether from alcoholysis products of secondary polyethylene terephthalate." Plasticheskie massy, no. 5-6 (July 17, 2021): 47–49. http://dx.doi.org/10.35164/0554-2901-2021-5-6-47-49.

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The technological parameters of the curing of unsaturated polyesters synthesized on the basis of alcoholysis products of secondary polyethylene terephthalate and used in the production of fiberglass pipes have been studied. It is shown that unsaturated polyesters synthesized on the basis of alcoholysis products can completely substitute imported resins of 196 and 196A grades in the production of fi berglass pipes.
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Dissertations / Theses on the topic "Polyether resins"

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MARREC, PHILIPPE. "Polymerisation anodique de polyethers a groupements aromatiques. Application a la synthese de nouvelles resines ionophores." Rennes 1, 1996. http://www.theses.fr/1996REN10178.

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Ce travail decrit l'electropolymerisation par voie anodique de thiophenes, pyrroles et dimethoxybenzenes substitues par une chaine polyether. La synthese de tels polymeres conducteurs a pour but de complexer des cations metalliques. Dans un premier temps, l'electropolymerisation de dithienyles substitues en position 3 par une chaine polyether et le comportement anodique du polymere resultant a ete etudie. L'analyse par spectroscopie d'adsorption uv-visible des polymeres aussitot apres electroformation puis apres traitement anodique a permis de mettre en evidence une reaction de reticulation sous transfert electronique. Une structure a ete proposee pour les polymeres avant et apres reticulation. A l'aide de radiotraceurs la capacite extractive des polymeres a ete evaluee vis-a-vis d'ions metalliques presents en solution aqueuse. Dans un second temps, l'influence de la valeur de la borne anodique sur la formation de polymeres electroactifs a partir de derives possedant deux cycles aromatiques de nature differente (thiophene, pyrrole dimethoxybenzene) et separes par une chaine polyether a ete montree. L'electroformation de polymeres possedant une structure bien definie a ete realisee. Finalement, l'electropolymerisation de thiophenes substitues en position 2 par un groupement a caractere ionophore a ete realisee. Une action chimique particuliere des sels de lithium sur les monomeres a ete mise en evidence par analyse spectroscopique uv-visible d'adsorption et par spectroscopie de rmn du #1h et du #1#3c. En presence d'ions lithium, certains derives du thiophene par une chaine polyether ont conduit a un derive a caractere ethylenique. Le mecanisme reactionnel serait une elimination avec assistance electrophile des ions lithium. Un processus similaire serait a l'origine du comportement anodique de ces derives
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Brocas, Anne-Laure. "Polymérisation anionique des époxydes par activation du monomère : monomères renouvelables et polymères fonctionnalisés." Thesis, Bordeaux 1, 2011. http://www.theses.fr/2011BOR14409/document.

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La polymérisation anionique par activation du monomère permet d’accéder à une large gamme de polyéthers en utilisant un système amorçant à base d’un nucléophile associé au triisobutylaluminium. Cette voie a permis d’accéder à des chaînes polyéthers fonctionnalisées par des groupements hydroxyle à chaque extrémité. La (co)polymérisation de l’éther allylglycidique avec d’autres éthers cycliques a été réalisée puis les (co)polymères correspondants ont été post-fonctionnalisés pour introduire en particulier des fonctions cyclo-carbonate destinées à réagir avec des amines pour générer des fonctions hydroxyuréthane et ainsi préparer des matériaux type polyuréthane par une chimie sans isocyanate. Enfin des dérivés du pin, de la famille des acides résiniques, ont été modifiés chimiquement pour élaborer des matériaux de type résine époxyde et polyuréthane sans isocyanate. La polymérisation anionique par activation du monomère a également pu être réalisée sur un monomère époxydé issu de cette ressource
Monomer-activated anionic polymerization allows the obtention of versatile polyethers using nucleophilic species in the presence of a Lewis acid, i.e. triisobutylaluminium. This method enables the synthesis of α-,ω-plurihydroxytelechelic polyethers. The (co)polymerization of allyl glycidyl ether with various epoxides allowed the preparation of copolyethers with reactive side groups. A cyclo-carbonate functionalization was carried out in order to introduce hydroxyurethane functions by reaction with amines. This reaction allows the preparation of isocyanate-free polyurethane. Finally, resinic acids were modified chemically to prepare epoxy resins and isocyanate-free polyurethanes. A polyether based on epoxidized resinic derivatives was also synthesized by ring-opening anionic polymerization and monomer activation
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Fröhlich, Jörg [Verfasser]. "Nanostructured thermoset resins and nanocomposites containing hyperbranched blockcopolyether liquid rubbers and organophilic layered silicates = (Nanostrukturierte Duromere und Nanocomposite auf der Basis von hyperverzweigten Polyether-Flüssigkautschuken und organophilen Schichtsilikaten) / vorgelegt von Jörg Fröhlich." 2003. http://d-nb.info/968525865/34.

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Cheng, Shin-Ming, and 鄭世銘. "The Flame Retardant Property of Urea and Cyclohexane Modified Silane Terminated Polyether Resin." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/dhh7b4.

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碩士
國立虎尾科技大學
材料科學與綠色能源工程研究所
101
Abstract Polymers are widely used during the decades. Now, polymer products fall upon everybody’s life, but polymer have a fatal weakness in flammability. At the end of the 1990s, All the world need “Halogen-free flame retardant " , and it waked up the significance for harmony between environmental protection and human development. Therefore the polymer with halogen-free flame retardant is necessary for human. There are many halogen-free flame retardant systems today. In this study an intumescent flame retardant (IFR) system was used. In generally, the IFR is composed of acid source, gas source and carbon source. In this study, the ammonium polyphosphate ( APP ) was used as acid source, the melamine cyanurate ( MCA ) was used as gas source, but there is no carbon source used for the IFR. In recent years, a silane terminated polyether resin was used as sealant. When the resin is cured, it became flammable. And even if the resin was added with some flame retardants, it still has a rapid pyrolysis rate, so it has no good flame retardant properties. In this study, urea, cyclohexane and IFR were added to the silane terminated polyether resin to reduce pyrolysis rate and to improve flame retardant properties. In this study, the commercially available silane terminated polyether resin with IFR was used as control group, and the resin with urea, cyclohexane and IFR was used as an experimental group. A vertical open flame test was carried out to compare their flame retardant properties. Furthermore, the adhesion strength test, the flexibility test and hardness test were carried out to compare their mechanical property. The results showed that the polyether with urea and cyclohexane can raise pyrolysis temperature, reduce pyrolysis rate and change carbonized structure, so that the retardant properties of the resin can be evidently improved. Although the adhesion strength and flexibility of the resin decrease with the increase of flame retardants content, but the flexibility of the modified resin was better than the unmodified resin.
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Books on the topic "Polyether resins"

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Morales, Wilfredo. A thin film degradation study of a fluorinated polyether liquid lubricant using an HPLC method. [Cleveland, Ohio: National Aeronautics and Space Administration, Lewis Research Center, 1986.

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Properties of perfluoropolyethers for space applications. Cleveland, Ohio: National Aeronautics and Space Administration, Lewis Research Center, 1994.

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The World Market for Polyether Resins in Primary Forms Excluding Polyacetals: A 2004 Global Trade Perspective. Icon Group International, Inc., 2005.

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Parker, Philip M. The 2007 Import and Export Market for Polyether Resins in Primary Forms Excluding Polyacetals in China. ICON Group International, Inc., 2006.

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Parker, Philip M. The World Market for Polyether Resins in Primary Forms Excluding Polyacetals: A 2007 Global Trade Perspective. ICON Group International, Inc., 2006.

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Evaluation of boundary-enhancement additives for perfluoropolyethers. [Washington, DC]: National Aeronautics and Space Administration, 1996.

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Parker, Philip M. The 2007 Import and Export Market for Polyether Resins in Primary Forms Excluding Polyacetals in United States. ICON Group International, Inc., 2006.

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Book chapters on the topic "Polyether resins"

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Gooch, Jan W. "Polyether Resins." In Encyclopedic Dictionary of Polymers, 559. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_9062.

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Gooch, Jan W. "Polyethers Resins." In Encyclopedic Dictionary of Polymers, 559. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_9064.

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"Polyether resins." In Encyclopedic Dictionary of Polymers, 749. New York, NY: Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-30160-0_8911.

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"Polyethers resins." In Encyclopedic Dictionary of Polymers, 749. New York, NY: Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-30160-0_8913.

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Holberg, Stefan. "Non-Hydrolyzed Resins for Organic-Inorganic Hybrid Coatings." In Research Perspectives on Functional Micro- and Nanoscale Coatings, 105–35. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-5225-0066-7.ch005.

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This chapter focuses on resins based on non-hydrolyzed, monomeric and polymeric alkoxysilanes. As alternative to classical sol-gel processing, the resins are applied to a surface without a preceding hydrolysis step. Only after application, hydrolysis and condensation of the alkoxysilyl groups occur by means of atmospheric moisture to result cross-linked organic-inorganic hybrid coatings. While the use of non-hydrolyzed silanes is well established, for example by applying polyethyl silicate as binder for zinc-rich anti-corrosive primers, this chapter describes the chemical structures of various novel organic-inorganic hybrid precursors that have significantly extended the area of application to adhesives and scratch-resistant, repellent, or anti-fouling coatings. At present, individual resins are produced and applied at industrial scale in the fields of protective coatings and automotive topcoats.
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Holberg, Stefan. "Non-Hydrolyzed Resins for Organic-Inorganic Hybrid Coatings." In Materials Science and Engineering, 771–801. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-1798-6.ch030.

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This chapter focuses on resins based on non-hydrolyzed, monomeric and polymeric alkoxysilanes. As alternative to classical sol-gel processing, the resins are applied to a surface without a preceding hydrolysis step. Only after application, hydrolysis and condensation of the alkoxysilyl groups occur by means of atmospheric moisture to result cross-linked organic-inorganic hybrid coatings. While the use of non-hydrolyzed silanes is well established, for example by applying polyethyl silicate as binder for zinc-rich anti-corrosive primers, this chapter describes the chemical structures of various novel organic-inorganic hybrid precursors that have significantly extended the area of application to adhesives and scratch-resistant, repellent, or anti-fouling coatings. At present, individual resins are produced and applied at industrial scale in the fields of protective coatings and automotive topcoats.
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Mark, James E., Dale W. Schaefer, and Gui Lin. "Copolymers and Interpenetrating Networks." In The Polysiloxanes. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780195181739.003.0010.

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Random copolymers are prepared by the copolymerization of a mixture of cyclic oligomers. Although the resulting polymer can be quite blocky (figure 8.1), taking the reaction to equilibrium can give a polymer that is essentially random in its chemical sequencing. One reason for preparing copolymers is to introduce functional species, such as hydrogen or vinyl side groups, along the chain backbone to facilitate cross linking. Another reason is the introduction of sufficient chain irregularity to make the polymer inherently noncrystallizable. Specific examples of comonomers include imides, perylenediimide, urethane-ureas, epoxies, other siloxanes, amides, styrene, divinylbenzene, acrylics, silsesquioxanes, polythiophenes, and poly(lactic acid). One novel combination is the preparation of polysiloxanebased episulfide resins. An unusual application is the use of monomethylitaconate- grafted polymethylsiloxane to induce crystal growth of CaCO3. Polysiloxanes containing thermally curable brenzoxazine moieties in the main chain are also in the category. These and other copolymers have been extensively characterized by nuclear magnetic resonance (NMR) spectroscopy. The sequential coupling of functionally terminated chains of different chemical structure can be used to make block copolymers, including those in which one or more of the blocks is a polysiloxane. If the blocks are relatively long, separation into a two-phase system invariably occurs. Frequently, one block will be in a continuous phase and the other will be dispersed in domains having an average size the order of a few hundred angstroms. Such materials can have unique mechanical properties not available from homopolymer species. Sometimes similar properties can be obtained by the simple blending of two or more polymers. Examples of blocks used with polydimethylsiloxane (PDMS) include imides, epoxies, butadienes, ε-caprolactones, amides having trichlorogermyl pendant groups, urethanes, ureas, poly(ethylene glycols), polystyrene, vinyl acetates, acrylates or methacrylates, 2-vinylpyridine, and even other polysiloxanes. Some results have also been reported for polyesters, polyethers, hydroxyethers of bisphenol A, bisphenol A arylene ether sulfones, vinylpyridinebenzoxazines, methyloxazolines, terpyridines, polysulfones, γ-benzyl-Lglutamate, and carboranes. Two other examples are foamed polypropylene and melamine resins. Even ABA, ABC triblock copolymers, and ABCBA pentablock copolymers involving PDMS have been reported.
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Conference papers on the topic "Polyether resins"

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Dominguez, R. J. G. "Amine-Terminated Polyether Resins in RIM." In SAE International Congress and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1985. http://dx.doi.org/10.4271/850155.

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Guo, Hongyuan, Yufei Chen, Chengbao Geng, and Chunyan Yue. "Mechanical and dielectric properties of polyether sulfone/epoxy resin — Bismaleimide composites." In 2018 12th International Conference on the Properties and Applications of Dielectric Materials (ICPADM). IEEE, 2018. http://dx.doi.org/10.1109/icpadm.2018.8401262.

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Sumi, Yuki, Takeshi Sano, Tanehiro Shinohara, Naoto Tochitani, Yukihiro Otani, Kazuhiko Yamashita, and Takashi Nakano. "Development of Thrust Bearings With High Specific Load." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-26798.

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Steam turbine is now facing strict market demands for further improvements in efficiency. To meet such demands, thrust bearing with high specific load makes a huge contribution to improvements in efficiency. Because the smaller thrust dummy diameter of rotor can be adopted and leakage flow through the thrust dummy can be reduced, in case thrust bearing allows higher specific load and allowable thrust force becomes bigger. MHI developed the thrust bearing with high specific load, which PEEK (polyether-ether-ketone) resin pad is applied. Both the laboratory bearing tests and long-time operation (from 2007) in MHI’s internal combined cycle power plant have been successfully accomplished. This PEEK resin thrust bearing is going to be applied to the actual plant. This article describes the performance and characteristics of PEEK resin thrust bearing and summary of laboratory test and long-time operation.
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Khan, Adnan, Amani Hassanein, Abdul Shakoor, Ramazan kahraman, Fatima Montemor, and Anwarul Hasan. "Hybrid Microcapsules Reinforced Smart Coatings for Corrosion Protection in Oil and Gas Industry." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2020. http://dx.doi.org/10.29117/quarfe.2020.0014.

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Corrosion is one of the critical causes of material loss in metal components. This research is focused on the synthesis, and electrochemical properties of polyelectrolyte layered microcapsules (PMCs) reinforced smart polymeric coating for corrosion protection of steel substrates. For this purpose, monolayer urea-formaldehyde microcapsules encapsulated with linalyl acetate (MLMCs) was synthesized by Insitu polymerization. In the next step, phenylthiourea (PTU) was loaded between the layers of polyelectrolytes; polyethylenimine (PEI) & sulfonated polyether ether ketone (SPEEK) on the surface of MLMCs using layer by layer technique. The MLMCs are sensitive to mechanical stress while the PTU in PMCs is triggered by pH stimulus. The newly designed PMCs has linalyl acetate in the core and PTU in the polyelectrolyte layers. Furthermore, 6 wt.% of both MLMCs and PMCs are dispersed in the epoxy resin and applied on the clean steel substrate. Performance comparison showed that the epoxy resin reinforced with PMCs demonstrate enhanced thermal, self-healing and electrochemical properties. This improved performance can be attributed to the efficient release of the self-healing agent and corrosion inhibitor from the PMCs. Conclusively, the epoxy coatings modified with PMCs can be a novel organic coating for the corrosion protection of oil and gas industries.
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Kececi, E., and R. Asmatulu. "Effects of Hydrophobic Barrier Films on the Mechanical Properties of Fiber Reinforced Composites Immersed in Water." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-62752.

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Fiber reinforced composites are subjected to a wide range of mechanical loads and environmental conditions, such as wind, high/low temperature, moisture, UV light and aggressive solvents. Compared to other structural materials, polymers can absorb more moisture and UV light from outside environment and lose their material properties (e.g., mechanical, electrical, surface and thermal) and thus the service life. In this study, hydrophobic barrier films including polyvinylfluoride (PVF) and polyether ether ketone (PEEK) were applied on the carbon, Kevlar, and glass fiber reinforced epoxy resin composites (laminate and sandwich structures), and then the effects of moisture absorption on those films were investigated in detail. The coupons were immersed in water for a number of days in order to determine the changes in mechanical properties of the composites. Three point bending tests were applied to the laminate composites, while four point bending tests were conducted on the Nomex sandwich structured composites. We found that moisture absorption could be eliminated by using these hydrophobic films. We found that PEEK film could be an alternative barrier film for the aircraft industry.
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