This study reports a synthesis of phenol-5-hydroxymethylfurfural resin (PHMF)—a green alternative to conventional phenol-formaldehyde resins starting from glucose and phenol in presence of chromium-based catalyst. On next step PHMF- resin was purified from unreacted glucose by dissolving in acetone. The solvents including the unreacted phenol have been removed by rotary evaporation. The final product was dried in vacuum at 800C, then mixed with Kraft Lignin which is the byproduct from the Kraft process with an addition of ground soy hulls fiber at 60:20:20 (w/w) ratio. The following conditions were used for making composites by lay-up method: pressure of 5000 psi and temperature profile of a curing procedure which included heating at 1200C for 30 min, as an initial step of curing, then a heating at 1500C for 30 min and heating at 1800C for 60 min. The mechanical properties of prepared composites, such as flexural strength (about 490 Mpa) and flexural modulus (about 880 Mpa) have been measured and compared with mechanical properties of bio- composite materials based on empty fruit bunch/phenol-formaldehyde resin, reported in literature.

Composite materials based on formaldehyde-free phenolic resin and soy hulls: Preparation and mechanical properties

256th National Meeting (2018)

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