Obtención de resinas fenólicas termoestables de lignina extraída del bagazo de la caña de azúcar.

Authors

  • Sandra León Departamento de Química, Universidad Nacional, Heredia, Costa Rica
  • Franklin Sanabria Polymer de Costa Rica S.A.

Abstract

Polymerized thermostable resins were obtained from legnine, extracted from sugar cane bagasse. This was done in two stages:

  1. The lignine  is phenolized by reaction in an acid medium.
  2. The lignine is then reacted during the molding operation, with hexamethylentetraamine, that acts like a crosslinking agent.
Some properties of the synthetized resins were determinate; it a was found that the best formulation consist of 46,0% of resin (phenollignine), 34,5% of bagasse, 13,8% of hexamethylentetraamine, 3,7% of magnesium oxide and 2,0% of zinc stearate.

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Published

1988-01-01

Issue

Vol. 5 No. 1-2 (1988)

Section

Original scientific papers (evaluated by academic peers)

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