Cold tack of urea formaldehyde resins as an important factor in plywood production / Aiman Syamil Sallehuddin

Cold tack of resin is the capability of adhesive to adhere onto another
surface under low force applied for a short period of time. It is an
important step in wood-based composite production. The main ingredient
for the experiment is Urea Formaldehyde (UF) which is the most popular
adhesive since it is considered as the pioneer in resin manufacturing. The
parameters of the experiment were moisture content and pre-press time
and it will be tested by using tensile shear strength. In this experiment, the
highest pre-press time which was 45 min with oven-dried veneer produced
efficient cold tack properties. It can be proven by the data gathered during
experiment showed that it accumulates higher tensile shear strength value
compare with other different conditions. This study has achieved its
objectives by observing the effect of moisture content and pre-press time
factors on the cold press properties in plywood manufacturing and to
determine the tensile shear strength of uncured veneer bonded with UF
resin