Search Results - "ALTSTÄDT, Volker"

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  1. 1

    Microcellular to nanocellular polymer foams: Progress (2004–2015) and future directions – A review by Okolieocha, Chimezie, Raps, Daniel, Subramaniam, Kalaivani, Altstädt, Volker

    Published in European polymer journal (01-12-2015)
    “…[Display omitted] •There are no low-density-nanofoams but rather, progress made at best are still medium-density-nanofoams and were achieved without the use of…”
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  2. 2

    Development of a Bead Foam from an Engineering Polymer with Addition of Chain Extender: Expanded Polybutylene Terephthalate by Standau, Tobias, Hädelt, Bianca, Schreier, Peter, Altstädt, Volker

    “…In this work, the development of a bead foam from the engineering polymer polybutylene terephthalate (PBT) in a continuous process is described. The polymer…”
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  3. 3

    Foam 3D Printing of Thermoplastics: A Symbiosis of Additive Manufacturing and Foaming Technology by Nofar, Mohammadreza, Utz, Julia, Geis, Nico, Altstädt, Volker, Ruckdäschel, Holger

    Published in Advanced science (01-04-2022)
    “…Due to their light‐weight and cost‐effectiveness, cellular thermoplastic foams are considered as important engineering materials. On the other hand, additive…”
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  4. 4

    Spongy Gels by a Top‐Down Approach from Polymer Fibrous Sponges by Jiang, Shaohua, Duan, Gaigai, Kuhn, Ute, Mörl, Michaela, Altstädt, Volker, Yarin, Alexander L., Greiner, Andreas

    Published in Angewandte Chemie International Edition (13-03-2017)
    “…Ultralight cellular sponges offer a unique set of properties. We show here that solvent uptake by these sponges results in new gel‐like materials, which we…”
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  5. 5

    Rheological rationalization of in situ nanofibrillar structure development: Tailoring of nanohybrid shish-kebab superstructures of poly (lactic acid) crystalline phase by Shahnooshi, Mahboobeh, Javadi, Azizeh, Nazockdast, Hossein, Ottermann, Katharina, Altstädt, Volker

    Published in Polymer (Guilford) (21-12-2020)
    “…The key rheological parameters for in situ development of poly (butylene terephthalate) nanofibrils (PBT NFs) in poly (lactic acid) (PLA) matrix using a tuned…”
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  6. 6

    Lightweight Ultra-High-Barrier Liners for Helium and Hydrogen by Habel, Christoph, Tsurko, Evgeny S, Timmins, Renee L, Hutschreuther, Julia, Kunz, Raphael, Schuchardt, Dominik D, Rosenfeldt, Sabine, Altstädt, Volker, Breu, Josef

    Published in ACS nano (23-06-2020)
    “…Upcoming efficient air-borne wind energy concepts and communication technologies applying lighter-than-air platforms require high-performance barrier coatings,…”
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  7. 7

    Flame Retardancy of Polymers: The Role of Specific Reactions in the Condensed Phase by Schartel, Bernhard, Perret, Birgit, Dittrich, Bettina, Ciesielski, Michael, Krämer, Johannes, Müller, Patrick, Altstädt, Volker, Zang, Lin, Döring, Manfred

    Published in Macromolecular materials and engineering (01-01-2016)
    “…Condensed‐phase mechanisms play a major role in fire‐retardant polymers. Generations of development have followed the concept of charring to improve fire…”
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  8. 8

    Chemical Modification and Foam Processing of Polylactide (PLA) by Standau, Tobias, Zhao, Chunjing, Murillo Castellón, Svenja, Bonten, Christian, Altstädt, Volker

    Published in Polymers (12-02-2019)
    “…Polylactide (PLA) is known as one of the most promising biopolymers as it is derived from renewable feedstock and can be biodegraded. During the last two…”
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  9. 9

    Comparison of the Foamability of Linear and Long-Chain Branched Polypropylene-The Legend of Strain-Hardening as a Requirement for Good Foamability by Weingart, Nick, Raps, Daniel, Lu, Mingfu, Endner, Lukas, Altstädt, Volker

    Published in Polymers (24-03-2020)
    “…Polypropylene (PP) is an outstanding material for polymeric foams due to its favorable mechanical and chemical properties. However, its low melt strength and…”
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  10. 10

    Degradation of low-density polyethylene to nanoplastic particles by accelerated weathering by Menzel, Teresa, Meides, Nora, Mauel, Anika, Mansfeld, Ulrich, Kretschmer, Winfried, Kuhn, Meike, Herzig, Eva M., Altstädt, Volker, Strohriegl, Peter, Senker, Jürgen, Ruckdäschel, Holger

    Published in The Science of the total environment (20-06-2022)
    “…When plastics enter the environment, they are exposed to abiotic and biotic impacts, resulting in degradation and the formation of micro- and nanoplastic…”
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  11. 11

    Preparation of pros-foam sheets and their epoxy foams using the solid-state carbamate-foaming technique by Uy Lan, Du Ngoc, Bethke, Christian, Altstädt, Volker, Ruckdäschel, Holger

    Published in Polymer (Guilford) (21-07-2022)
    “…The foaming of epoxy resin is a challenge process in optimizing the flow foaming and curing to obtain a homogeneous cellular structure. This study presents a…”
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  12. 12

    Correlations of Geometry and Infill Degree of Extrusion Additively Manufactured 316L Stainless Steel Components by Rosnitschek, Tobias, Seefeldt, Andressa, Alber-Laukant, Bettina, Neumeyer, Thomas, Altstädt, Volker, Tremmel, Stephan

    Published in Materials (09-09-2021)
    “…This study focuses on the effect of part geometry and infill degrees on effective mechanical properties of extrusion additively manufactured stainless steel…”
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  13. 13

    Influence of Fiber Volume Content on Thermal Conductivity in Transverse and Fiber Direction of Carbon Fiber-Reinforced Epoxy Laminates by Bard, Simon, Schönl, Florian, Demleitner, Martin, Altstädt, Volker

    Published in Materials (02-04-2019)
    “…Thermal conductivity is an important material property for thermo-mechanical calculations, as mechanical properties strongly depend on the temperature and heat…”
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  14. 14

    Rheological Study of Gelation and Crosslinking in Chemical Modified Polyamide 12 Using a Multiwave Technique by Dörr, Dominik, Kuhn, Ute, Altstädt, Volker

    Published in Polymers (07-04-2020)
    “…When processing particular polymers, it may be necessary to increase the molecular weight, for example, during polymer recycling or foaming. Chemical additives…”
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  15. 15
  16. 16

    Fatigue Characteristics of Poly(ether‑b‑amide) Elastomers during Cyclic Dynamic Tests and the Underlying Microstructural Evolution by Zhu, Ping, Brückner, Alexander, Neumeyer, Thomas, Standau, Tobias, Ruckdäschel, Holger, Altstädt, Volker, Dong, Xia, Wang, Dujin

    “…The dynamic fatigue behavior of the poly­(ether-b-amide) (PEBA) elastomers was characterized by a combination of step increase load test (SILT), step increase…”
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  17. 17

    Expanded Polycarbonate (EPC)-A New Generation of High-Temperature Engineering Bead Foams by Weingart, Nick, Raps, Daniel, Kuhnigk, Justus, Klein, Andreas, Altstädt, Volker

    Published in Polymers (10-10-2020)
    “…Bead foams serve in a wide variety of applications, from insulation and packaging to midsoles in shoes. However, the currently used materials are limited to…”
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  18. 18

    The Impact of Janus Nanoparticles on the Compatibilization of Immiscible Polymer Blends under Technologically Relevant Conditions by Bahrami, Ronak, Löbling, Tina I, Gröschel, André H, Schmalz, Holger, Müller, Axel H. E, Altstädt, Volker

    Published in ACS nano (28-10-2014)
    “…Several hundred grams of Janus nanoparticles (d ≈ 40 nm) were synthesized from triblock terpolymers as compatibilizers for blending of technologically relevant…”
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  19. 19

    Transparent PC/PMMA Blends Via Reactive Compatibilization in a Twin-Screw Extruder by Bubmann, Tobias, Seidel, Andreas, Altstädt, Volker

    Published in Polymers (12-12-2019)
    “…The effect of different catalysts on reactive compatibilization of 50/50 polycarbonate (PC)/polymethylmethacrylate (PMMA) blends achieved via…”
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  20. 20

    Effect of chemical modification on the thermal and rheological properties of polylactide by Göttermann, Svenja, Standau, Tobias, Weinmann, Sandra, Altstädt, Volker, Bonten, Christian

    Published in Polymer engineering and science (01-11-2017)
    “…Today PLA is one of the most important bioplastics on the market. A disadvantage of commercial polylactide is that it is not readily foamable, due to its low…”
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