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Study of Production and Quality of Large (1–2 MM) Polystyrene Hollow Microspheres.

  • Yu. A. Merkuliev (a1), A. A. Akunets (a1), V. S. Bushuev (a1), V. M. Dorogotovtsev (a1), A. I. Gromov (a1), A. I. Isakov (a1), A. I. Nikitenko (a1), S. A. Startsev (a1), S. M. Tolokonnikov (a1) and R. C. Cook (a2)...

Abstract

We present a summary of the techniques used to produce hollow plastic microshells from solid polymer granules using drop tower techniques. Unlike solution drop tower techniques, the use of these granules allows one to produce good quality shells with diameters of 1 to 1.5 mm. The reasons for hollow plastic shell diameter limitations are discussed, and based on these studies we present a new drop tower furnace concept we call a ballistic furnace that has been designed to produce large (2 to 3 mm) polystyrene shells. The characteristics of the individual components such as the pellet injector and the fast cooling system are given.

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1. Lindl, J. D., in Proceed. 23rd ECLIM. at Oxford, UK, Sept. 19 - 23, 1994. See also M. Cray in the same volume.
2. McEachern, R., Moore, C., Overturf, G. E., Buckley, S. R., Cook, R. C.. ICF Quarterly 4, 25 (1993), Lawrence Livermore National Laboratory, Livermore, CA, UCRL-105821-93-1.
3. Cook, R. C., “Production of Hollow Microspheres for Inertial Confinement Fusion Experiments,” this volume.
4. Borisenko, N. G., Bushuev, V. S., Gromov, A. I., et. al., Kvantovaya Electronica 16, 1895 (1989). [Sov. Quantum Electronics. 9, (1990)]
5. Merkuliev, Yu. A., in Laser Fusion Targets and Super High Strength Microballoons, Science, Moscow, 1992 (in Russian). pp. 113–178.
6. Cook, R., Overturf, G. E. III, Buckley, S. R., and McEachern, R., J. Vac. Sci. Technol. A 12, 1275 (1994).
7. McEachern, R. L., Moore, C. E., and Wallace, R. J., J. Vac. Sci. Technol., Proceedings of the 41 st National Symposium, 1994, (submitted).

Study of Production and Quality of Large (1–2 MM) Polystyrene Hollow Microspheres.

  • Yu. A. Merkuliev (a1), A. A. Akunets (a1), V. S. Bushuev (a1), V. M. Dorogotovtsev (a1), A. I. Gromov (a1), A. I. Isakov (a1), A. I. Nikitenko (a1), S. A. Startsev (a1), S. M. Tolokonnikov (a1) and R. C. Cook (a2)...

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