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Recent content by simisastry

  1. simisastry

    Piezoelectric Materials

    Thanks SMF1964. I am not looking for composities but a thin film of thickness of around 1mm. A film that could be integrated between 2 layers of clothing.
  2. simisastry

    Piezoelectric Materials

    Could some one help me trace a flexible Piezo Electric film manufacturer. I need a film that could be integrated into a Textile substrate for sensor purposes. I do not need a ceramic based piezo material but something akin PVDF Piezo film.
  3. simisastry

    infrared ,tmeperature and moisture in fabrics

    Is it possible to detect and quantify amount of moisture absorbed in fabrics via Infra red cameras apart from measuring dynamic temperature changes of clothing .
  4. simisastry

    high emissivity fibers and coatings

    I hear crystal paints change the emissivity of surfaces,where do i find such paints fpr textile surfaces.
  5. simisastry

    high emissivity fibers and coatings

    and i know that carbon fibers can be used to manufacture nets and fabrics but are there fibers that are not dark in colour.Does a carbon fiber textile reduce its emissivity if its printed on?
  6. simisastry

    high emissivity fibers and coatings

    Are there natural high emissivity fibers that can be spun? vispel polyimide seems to be the only polymer with emissivity of 0.9 but it cannot be spun.Can polyimide P84 used for fire retardant textile have such a high emissivity too?Can we Apply high emissivity coatings on textile surfaces,that...
  7. simisastry

    the right HES in bimetals?

    which HES material would be the best combination for invar (LES) to acheive high thermal expansion with temperature fall, in a bimetal? and
  8. simisastry

    Poisson's ratio greater than 1

    I am looking for its applications in textiles other than in composites or foams I read professor lakes site on Auxetics (http://silver.neep.wisc.edu/~lakes/PoissonFAT.html) and application of Auxetics in textiles in http://research.dh.umu.se/dynamic/artiklar/shape/stretch.html.. In the...
  9. simisastry

    Poisson's ratio greater than 1

    hi and i also had a basic question . in a positive honey comb strcuture when extended the area would remain the same i suppose since the overall perimeter remains same.For a negative poissons auxetic material ,under stretch the material expands in all directions,how does this influence the...
  10. simisastry

    Poisson's ratio greater than 1

    Hi Can u point out a site for application of negative poisson's ratio materials for textiles.With regard to manufacture,properties and uses etcetc
  11. simisastry

    Negative poisson's ratio materails

    Hi can any one point me out to the mnaufacture of these materials for textile purposes?

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