Showing posts with label thermal insulation. Show all posts
Showing posts with label thermal insulation. Show all posts

2017-10-13

[MRS Symposium] SM07 - Functional (Bio)polymers in Energy and Environment Applications



Time and time again, "multidisciplinary" research is touted as essential to innovation. That is why, from April 2-6, 2018, researchers working in seemingly unrelated fields will gather in Phoenix, Arizona, to promote, share and discuss issues and developments across disciplines.

The 2018 MRS Spring Meeting & Exhibit is the key forum to present research to an interdisciplinary and international audience. It provides a window on the future of materials science, and offers an opportunity for researchers—from students and postdoctoral fellows, to Nobel and Kavli Prize Laureates—to exchange technical information and network with colleagues.

Call for Papers

Abstract submission deadline is October 31, 2017.

Symposium SM07—Functional (Bio)polymers in Energy and Environment Applications

The development of inexpensive, benign and efficient sustainable materials, which can replace our dependence on the fossil reserves, is imperative. This approach can take many forms, either by improving the lifetime of a material, making it lighter, easier and more economical to transport, or by creating novel materials that allow for new functions. In this context, the exploitation of functional materials based on renewable and sustainable (bio)polymers and bioplastics (i.e., biological polymers and bio-derived synthetic polymers) such as poly(ionic liquid)s (PILs), polysaccharides, fibrous proteins, etc represents an approach that can satisfy these stringent requirements.

Improved chemical and characterization methods have promoted the growing interest in (biopolymers as it enabled tuning their surface properties and the observation of their intricate nanostructures. Functional biopolymers and bioplastics have found their way in applications in catalysis, sensing, energy storage and energy generation. However, the understanding of the coupling of the micro-, meso-, and macroscopic-length scales is far from being understood, particularly in combination with inorganic nanomaterials. This symposium will cover the range of applications of biopolymers and bioplastics in energy and environment applications.

The topics of the symposium include interdisciplinary areas merging chemistry, biology, polymer science and materials science. The invited abstracts will provide the required bridges to connect these areas with an emphasis on their characterization methods and applications. These, in turn, will help to initiate discussions towards the implementation of the various functional (bio)polymers in different areas and the cross-fertilization of the characterization methods that are used.

Topics will include:

  • Thermal insulation 
  • Ionic and electronic conductors 
  • Environmental remediation (heavy metal sorption, organic dye removal, etc.) 
  • Life-cycle analysis 
  • Sensing 
  • Catalysis 
  • Energy generation and storage (supercapacitors, battery, triboelectricity, piezoelectricity, biofuel cells, etc) 
  • Advanced characterization of (bio)polymers 
  • Functionalization of biopolymers 
  • Functional carbons from (bio)polymers 

    Invited Speakers: 

    • Laurent Billon (Université de Pau et des Pays de l'Adour, France)
    • Niklas Hedin (Stockholm University, Sweden)
    • Olli Ikkala (Aalto University, Finland)
    • Timothy Long (Virginia Polytechnic Institute and State University, USA)
    • Isabel Marucho (Universidade Nova de Lisboa, Portugal)
    • Hideharu Mori (Yamagata University, Japan)
    • Meital Reches (Hebrew University of Jerusalem, Israel)
    • Daniel Taton (Université de Bordeaux and CNRS, France)
    • John Texter (Eastern Michigan University, USA)
    • Magdalena Titirici (Queen Mary University of London, England)
    • Silvia Vignoli (University of Cambridge, England)
    • Feng Yan (Soochow University, China)

    Symposium Organizers

    German Salazar-Alvarez
    Stockholm University
    Materials and Environmental Chemistry
    Sweden
    +468163942, german@mmk.su.se

    Marie-Helene Delville
    Institut de Chimie de la Matière Condensée de Bordeaux
    Chemistry of Nanomaterials
    France

    Bernd Wicklein
    Materials Science Institute of Madrid-CSIC
    Spain
    34-91-3349000, bernd@icmm.csic.es

    Jiayin Yuan
    Clarkson University
    Department of Chemistry and Biomolecular Science and Center for Advanced Materials Processing
    USA
    315-268-4247, jyuan@clarkson.edu

    Keywords for Abstract Submission

    characterization of biopolymers, Energy generation and storage, Environmental remediation, functionalization of biopolymers, Ionic and electronic conductors, sensing and catalysis, Thermal insulation

    2014-11-03

    Thermally insulating and fire-retardant lightweight anisotropic foams based on nanocellulose and graphene oxide

    Bernd Wicklein, Andraž Kocjan, German Salazar-Alvarez, Federico Carosio, Giovanni Camino, Markus Antonietti, and Lennart Bergström

    Nature Nanotechnology 10 (2015) 277–283
    DOI:10.1038/nnano.2014.248

    Abstract
    High-performance thermally insulating materials from renewable resources are needed to improve the energy efficiency of buildings. Traditional fossil-fuel-derived insulation materials such as expanded polystyrene and polyurethane have thermal conductivities that are too high for retrofitting or for building new, surface-efficient passive houses. Tailored materials such as aerogels and vacuum insulating panels are fragile and susceptible to perforation. Here, we show that freeze-casting suspensions of cellulose nanofibres, graphene oxide and sepiolite nanorods produces super-insulating, fire-retardant and strong anisotropic foams that perform better than traditional polymer-based insulating materials. The foams are ultralight, show excellent combustion resistance and exhibit a thermal conductivity of 15 mW/m·K, which is about half that of expanded polystyrene. At 30 °C and 85% relative humidity, the foams retained more than half of their initial strength. Our results show that nanoscale engineering is a promising strategy for producing foams with excellent properties using cellulose and other renewable nanosized fibrous materials.