Resumo

TAVERA RUIZ, Claudia Patricia  e  GAUTHIER-MARADEI, Paola. Experimental study of creaming and separation steps a creamed natural latex manufacturing process. Rev. ion [online]. 2012, vol.25, n.1, pp.7-15. ISSN 0120-100X.

This work shows the results obtained in the experimental study of creamed natural latex manufacturing process. In this study, the effect of some operating conditions on product properties, that must satisfy the international criteria, has been determined. The operating conditions, that allow the most important effect on the quality criteria proposed by ASTM 1076, were defined. This work was carried out using two different creamed agents (sodium aliginate, carboxymethylcellulose), two concentration and four creamed times. Moreover, the effect on the product quality of the two phase's separation, produced during the creamed process, has been studied. Finally, two types of studies were done: with or without phase separation. The test with the best stability, higher TSC and DRC, were obtained using sodium alginate at 1.5g/L, creamed times lower than two weeks and phase separation of two days.

Palavras-chave : natural rubber; latex concentration; sodium alginate; carboxymethylcellulose.

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