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  • Polymer composites for tribological applications ...

    2018-10-1 · Polymer composite cages in dental turbine handpieces : Textile wound tube (upper left), with enlargement of its cross-section, showing axial and tangential cotton fiber bundles, embedded in a phenolic resin matrix; machined miniature snap cages (upper right); Mounting of the cages in the steel ball bearing (lower right); operation of ball bearing in the dental turbine handpiece (lower left).

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  • The Progress in Development of Dental Restorative

    Composite materials based on methacrylate monomers are commonly used to provide aesthetic and functional restoration of dental tissue. A broad spectrum of new polymerization chemistries is being developed to further improve the reliability of these materials.

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  • Polymers | Free Full-Text | Recent Advances in

    In 2017, Saito and coworkers reported a convenient synthesis of a functional polymer, which consisted of acrylate monomers (butyl methyl acrylate (BMA), methyl acrylate (MA), hexyl methacrylate (HMA) and ethyl acrylate (EA)) and photoreversible coumarin moiety . The hardness of the formed cross-linked polyacrylates was studied prior to and after healing, for the purpose of understanding mechanical …

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  • Functional Remineralization of Dentin Lesions Using ...

    2012-6-13 · It was hypothesized that applying the polymer-induced liquid-precursor (PILP) system to artificial lesions would result in time-dependent functional remineralization of carious dentin lesions that restores the mechanical properties of demineralized dentin matrix. 140 µm deep artificial caries lesions were remineralized via the PILP process for 7–28 days at 37°C to determine temporal remineralization …

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  • Materials | ResearchGate

    The corresponding monomers of CP are able to be polymerized with an electrochemical method, which be made good use of for the fabrication process of e-paper. pTIO derivatives are copolymerized ...

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  • Polymers | Free Full-Text | A Comparative Review of ...

    Silk is made up of two separate main proteins; one is silk fibroin (SF) made from the fibrous portion of the filament and another is sericin, which is a glue-like and water-soluble protein containing 18 different kinds of amino acids . Studies have shown that, in addition to a tenable degradation rate and mechanical properties, the manufacturing of silk fibroin-based scaffolds of varying configurations yields attractive …

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  • Hexcel: Latest composite innovations presented at JEC ...

    2021-6-22 · A stiffened panel demonstrator part made by Hutchinson with Compositadour and the Institut de Soudre using Hexcel and Arkema material is a result of that collaboration, and was showcased at JEC Composites Connect. This HexPly PEKK part is designed for optimal lay-up in Automated Fiber Placement (AFP) with pultruded stringers, with integrated Lightning Strike Protection.

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  • Hexcel promotes its latest advanced composite

    2021-1-6 · HexPly M77 Snap-Cure enables sporting goods to be press-cured in two minutes at 150°C. These innovative Hexcel composites are widely used in a number of leading recreational sports equipment including skis, golf shafts, and tennis racquets …

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  • High performance polymers for oil and gas

    2021-5-1 · LCPs can be categorized as lyotropic (i.e. crystallinity occurs when the polymer is dissolved in a solvent) or thermotropic (i.e. crystallinity occurs when the polymer is heated above its T g or melting temperature). The most popular example of lyotropic LCP is …

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  • The Global Leader in Laser-Sintering Systems

    2014-11-8 · Hardenable stainless 15-5 1.4540 Functional prototypes and series parts; engineering and medical. EOS NickelAlloy IN718. Inconel™ 718, UNS N07718, AMS 5662, W.Nr 2.4668 etc. Functional prototypes and series parts; high temperature turbine parts etc. EOS NickelAlloy IN625.

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  • Dental Turbines Overview KaVo dental turbines - in

    2021-6-26 · Made for your hand: Each KaVo dental turbine is the result of extensive ergonomic and anatomical studies with consistent dimensions, angles and contours for balanced handling. You can choose from the wide range of KaVo's top class dental turbines. KaVo dental turbines - The perfect interplay of hand and tool.

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  • The Progress in Development of Dental Restorative

    Composite Restorative Materials. The glass-ceramic fillers in dental composites are typically aluminosilicate- based, with the inclusion of heavy metal oxides such as barium, strontium or zirconium to contribute X-ray opacity. 8 The filler particle dimensions vary from approximately 0.1–10 μm for ground glass, to around 20–50 nm for ...

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  • Fatigue behaviour of dental crowns made from a novel

    2021-1-28 · Fatigue behaviour of dental crowns made from a novel high-performance polymer PEKK ... Materials Science, Dental School, Rheinische Friedrich-Wilhelms University, University of Bonn, Welschnonnenstr. 17, ... not fully erupted and they are often damaged during extrac-tion. Therefore,itisdifficult toobtainareasonablehighnum-

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  • Polymer composites for tribological applications ...

    2018-10-1 · Many different polymers and polymer composites are used for engineering applications in which friction and wear are critical issues. This article briefs (a) the importance of polymer tribology in general, (b) the special design principles of polymer composites for low friction and wear under sliding against smooth metallic counterparts, and (c) synergistic effects of nano-particles and ...

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  • Hexcel promotes its latest advanced composite

    2021-1-6 · At its virtual stand, Hexcel will display a variety of innovative, advanced composite products including: HexPEKK® 3D printed parts for aerospace, space, and defenseHexAM® additive manufacturing is a sophisticated merging of PEKK high-performance thermoplastic and the world's most robust additive manufacturing technology, delivering a range of fully functional end-use parts…

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  • High performance polymers for oil and gas

    2021-5-1 · It is defined as the amount of energy needed to break a chemical bond. For example, the bond energies of C-C, C=C, C-H, and C-F bonds are 83, 145, 99, and 123 kcal mol-1, respectively. Higher energy is required to break a C=C than a C-C bond; thus, the reason why most HPPs contain C=C bonds across their backbones.

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  • Machine-learning-assisted discovery of polymers with

    2019-6-21 · Polymer 19 could be categorized as an amorphous polymer with T g 194 °C clearly observed by conventional DSC; its thermal conductivity, 0.195 W/mK, is notably high for an amorphous polymer ...

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  • UZH - Center of Dental Medicine - Prof. Dr. Dr. h.c ...

    2014-6-22 · Journal of Adhesion Science and Technology, 31 (2):211-218. Koc-Dundar, Bilgin; Özcan, Mutlu (2017). Effect of clinical and laboratory contamination media on the adhesion of luting cement to direct and indirect resin composite materials. Journal of …

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  • The Folly of Building-Integrated Wind | BuildingGreen

    Ceramic 3D Printing, Now on Your Desktop. 3D print parts with a stone-like finish and fire them to create a fully ceramic piece with Ceramic Resin, an experimental material that pushes what’s possible with the Form 2. Fabricate ceramic parts for engineering research, or create distinctive art and design pieces.

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  • Dental Turbines Overview KaVo dental turbines - in

    2021-6-26 · Made for your hand: Each KaVo dental turbine is the result of extensive ergonomic and anatomical studies with consistent dimensions, angles and contours for balanced handling. You can choose from the wide range of KaVo's top class dental turbines. KaVo dental turbines - The perfect interplay of hand and tool.

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  • American Dental Accessories || Practice Tips #22 ...

    2010-5-25 · At the center of the turbine is the spindle (#1 in the diagram above), this is the shaft that spins. Inside the spindle is the chuck (#2 in the diagram above), this is a hollow tube that holds the bur, which of course does the cutting. As you can see in the diagram, the chuck has little slits at the end. These slits allow the chuck to compress as it moves forward inside the spindle to grip the ...

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  • Placing Dental Composites—A Stressful Experience ...

    2008-1-1 · There is no proven association between the polymerization contraction behavior of dental composite restorations and their clinical outcomes. But it is true that the primary reason for replacement of dental composites is the diagnosis of secondary caries, and this has not changed in the past 20 years.1–12 It is also true that the polymerization of these polymer-based materials is accompanied ...

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  • Our products - Composite materials solutions | Solvay

    2021-1-28 · Metal and ceramic are commonly available restoration materials for single dental crown. It has proven to be a good choice to match the aesthetic and functional requirements of the patient and is considered by many dentists as a gold standard [1,2,3,4].Nonetheless, this kind of restoration has some disadvantages: Besides the possible chipping of the ceramic facing, there is an aesthetic problem ...

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  • Fatigue behaviour of dental crowns made from a

    2019-6-21 · Polymer 19 could be categorized as an amorphous polymer with T g 194 °C clearly observed by conventional DSC; its thermal conductivity, 0.195 W/mK, is notably high for an amorphous polymer ...

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  • Machine-learning-assisted discovery of polymers with

    2020-1-20 · We hereby present an analysis of the latest progress made by each major automaker group and some of the key activities—either publicly disclosed or confirmed by reliable sources. This episode is dedicated to French Group PSA additive manufacturing. In the previous episodes, we looked at Volkswagen , General Motors, Daimler Benz, Ford and BMW.

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  • PSA Additive Manufacturing » 3D Printing Media

    2021-5-11 · Paris, May 11, 2021 – JEC Innovation Awards celebrate the fruitful cooperation between players of the composite community. Started in 1996, the JEC Innovation Awards have, over the past 24 years, brought in 1,900 companies worldwide. 198 companies and 475 partners have been rewarded for the excellence of their composite innovations.…

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  • THE JEC COMPOSITES INNOVATION AWARDS 2021

    308/372/560/561. 562/570. 15151 0 23077 0560 0560-0125 10/31/2002

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  • Advances in 2D/3D Printing of Functional

    2015-1-8 · This is done by realizing printing of functional materials such as ink, paste, polymer, ceramic powder, and organic materials. ... and medical/dental and the market was worth several billions in 2013. ... the ink on a soft printing plate cylinder made of rubber or a photo-polymer is transferred onto a target substrate by stamping. 14,84,87 One ...

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  • Dental Implant Laboratory | Zirconia Dental Lab ...

    2008-1-1 · There is no proven association between the polymerization contraction behavior of dental composite restorations and their clinical outcomes. But it is true that the primary reason for replacement of dental composites is the diagnosis of secondary caries, and this has not changed in the past 20 years.1–12 It is also true that the polymerization of these polymer-based materials is accompanied ...

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  • Download Center | KaVo Dental

    2006-11-1 · In the late 1980s, a polymer chemist (Robert Langer) and an organ transplant surgeon (Joseph Vacanti), proposed that it might be possible to generate a tissue or organ by seeding the cells that make this tissue into a biodegradable scaffold.1 This approach to regenerative medicine was named tissue engineering, which is defined as an interdisciplinary field that applies the principles of ...

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  • Placing Dental Composites—A Stressful Experience ...

    Tooth defects are an extremely common health condition that affects millions of individuals. Currently used dental repair treatments include fillings for caries, endodontic treatment for pulp necrosis, and dental implants to replace missing teeth, all of which rely on the use of synthetic materials. By contrast, the fields of tissue engineering and regenerative medicine and dentistry (TERMD ...

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  • Buonocore Memorial Lecture | Operative Dentistry -

    CNC Machining. Polymer Casting. Rotational Molding. Vacuum Forming. Injection Molding. Extrusion. Blow Molding. Manufacture Plastic Parts Rapidly With 3D Printing. Plastics are the most common materials for producing end-use parts and products, for everything from consumer products to …

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  • 3D printing for aerospace & defense | Prodways FR

    2021-6-10 · The ink, together with a binder system composed of a polymer or volatile solvent, was then extruded through a nozzle and printed into scaffolds with 0°/90°/0° layers.

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  • Tooth Repair and Regeneration: Potential of Dental

    2018-6-22 · 2018-01-01. An on-chip refractive index (RI) sensor, which is based on the localized surface plasmon resonance ( LSPR) of periodic gold nanorings array, is presented. The structure parameters and performance of LSPR -based sensors are optimized by analyzing …

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  • Dental Turbines Overview KaVo dental turbines - in

    2021-6-26 · Made for your hand: Each KaVo dental turbine is the result of extensive ergonomic and anatomical studies with consistent dimensions, angles and contours for balanced handling. You can choose from the wide range of KaVo's top class dental turbines. KaVo dental turbines - The perfect interplay of hand and tool.

    Get Price
  • The Progress in Development of Dental Restorative

    Composite Restorative Materials. The glass-ceramic fillers in dental composites are typically aluminosilicate- based, with the inclusion of heavy metal oxides such as barium, strontium or zirconium to contribute X-ray opacity. 8 The filler particle dimensions vary from approximately 0.1–10 μm for ground glass, to around 20–50 nm for ...

    Get Price
  • The Impact of Dental Implant Surface Modifications

    2021-4-12 · 1. Introduction. The history of dental implants dates as far back as 600 A.D. when the Mayan population used pieces of shells to replace missing teeth [].Fast forward to the 1930s, the first endosteal implant used in dentistry took after orthopedic screw fixtures and were made of Vitallium, a chromium-cobalt alloy [].To facilitate bone growth onto metal, a spiral stainless-steel implant was ...

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  • American Dental Accessories || Practice Tips #22 ...

    2010-5-25 · At the center of the turbine is the spindle (#1 in the diagram above), this is the shaft that spins. Inside the spindle is the chuck (#2 in the diagram above), this is a hollow tube that holds the bur, which of course does the cutting. As you can see in the diagram, the chuck has little slits at the end. These slits allow the chuck to compress as it moves forward inside the spindle to grip the ...

    Get Price
  • Stratasys Introduces New PolyJet 3D Printing

    Find products by brands, product groups and view property comparisons, etc.

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  • Industrial Applications of 3D Printing: The Ultimate

    2 天前 · A global materials science company focused on discovery, product innovation based on fluoropolymer technology and manufacturing, and rewarding careers for our associates.

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  • Product Selector for Eastman products

    2000-8-31 · ing agent, other functional addi-tives, and a suitable solvent. Then this varnish is applied to a reinforcing fabric made of glass fiber or other high modulus fibers, the solvent is removed, and the resin is partially reacted to form a ”prepreg”. At this point, the B-stage, …

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  • Gore | Improving lives through advanced materials

    materials—such as aluminum or paper—may be used in combination with plastic film in order to impart special properties. Therefore, even the following cate-gories of film are themselves made up of many diverse types of film. Food Packaging Food packaging film is used in such things as in-store bags for produce (such as apples and potatoes); all

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