Studies on viscosity and fluidity of fluid resins.

نویسندگان

  • M Nishiyama
  • Y Nakagawa
  • A Kohata
  • T Kodaki
  • M Yamaguchi
چکیده

The curing of fluid resins is performed by pouring the polymer-monomer mixture into molds made of hydrocolloid[1] or special plaster investment[2], before the fluidity of resin mixture disappears. Therefore, it can be said that the fluidity of resin mixture is an important factor which not only determines the pouring time but also is much related to the quality of the products. The viscosity of fluid resins is extremely unstable; in the initial stage of the mixing process, it is presumably due to the mixture turning into non-homogeneous suspension composed of polymer and monomer, and then it rises, as time goes on, due to the swelling and solubility of polymer into monomer. Though it is very difficult to apprehend accurately the relationships between such non-equilibrium , non-homogeneous dispersion system viscosity and fluidity, the authors intend to examine the viscosity and fluidity at the pouring time from the viscosity rising and efflux of resin mixture to find fluidity suitable for pouring.

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عنوان ژورنال:
  • The Journal of Nihon University School of Dentistry

دوره 17 2  شماره 

صفحات  -

تاریخ انتشار 1975