出典:Wikipedia
出典:『Wikipedia』 (2010/11/13 00:56 UTC 版)
Microcellular plastic foam is a plastic composite that has been specially fabricated so as to created micro-pores or cells in the polymer matrix. The common definition includes foams with pore size on the order of 10 micrometers in diameter (from 0.1 to 100 micrometers typically.) Since the size of cells is close to the wavelength of light, to the casual observer this foam retains the appearance of a solid light colored plastic. Microcellular foams have been made in the density range of 5 to 99% of the base material. Conventional commodity foam has cell diameters of 100 to 500 micrometers and density of very light foam to hard foam (0.3 to 50% of virgin material). Images of these plastics can also be found here: (source: http://microcel.me.washington.edu)