The effect of long-time storage of PRF resin on its physical and chemical properties
Journal Title: Annals of WULS, Forestry and Wood Technology; Zeszyty naukowe SGGW - Year 2016, Vol 96, Issue 1
Abstract
The effect of long-time storage of PRF resin on its physical and chemical properties. Phenol- resorcinol-formaldehyde resin was subjected to 21-month storage and its physical and chemical properties, as well as bondline shear strength made on solid beech wood were observed. It was found that – throughout the experiment – viscosity increased from 3300 to 112000 mPas and gel time at 20°C shortened from 75 to 14 minutes. Microscopic analysis revealed no forming of inhomogeneous solid particles in the resin. The mechanical properties of the bondlines made of the aged resin remained unchanged during 21-month storage. Keywords:
Authors and Affiliations
ANNA ROMANOWSKA, MARIUSZ MAMIŃSKI
Keywords
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