STRUCTURE AND PROPERTIES OF FOAM RUBBERS

The effect of foaming and gelling agents, porous and nonporous fillers (silica gel and chalk) on the ability of latex foam to resist rupture of pore walls, the coherence of the pore space and the mechanical properties of air-foam rubbers has been studied.

The pore coherence one to the other was found a critical parameter of pore structure, which, together with density, determines the mechanical characteristics of the foam rubber.

 

It is demonstrated that the average size of the pores and the trough junction between pores can by increased by up to 1.5 times, their ratio by up 1.5 times, and pore coherence by up to two times by varying composition factors.

 

 

 

  • See also:
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    • 1 V.B.Tsarevsky, L.Jirgen. Structure and dynamic properties of latex foam rubbers. Int.Conf. on Rubber and Resin "Rubber-84", Moscow, 8-11 Sept. 1984. Preprint A 29 (in Russian).

    2. V.B.Tsarevsky, L.Jirgen. Effect of foam stability on pore coherence and mechanical properties of rubber latex based materials. Mechanics of composite materials (N.Y.), 1995, vol.31, No 6

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