Heat Transfer in Resin Impregnated Poplar LVL during Hot-pressing

TLDR: In this paper, the effects of resin application methods,resin content, hot-pressing temperature, and pressure in hot pressing poplar laminated veneer lumber (LVL) were investigated.

Abstract: Better understanding of heat transfer and resin curing during hot pressing will help optimize the wood composite manufacturing process in increasing productivity and improving product quality.Electrical-thermocouples were used in this study to investigate the effects of resin application methods,resin content,hot-pressing temperature,and pressure in hot-pressing poplar laminated veneer lumber(LVL).The results indicated that during the initial pressing stage,the internal temperature increased more rapidly by using a resin impregnation method than a resin spread method.It was found that higher resin content accelerated heat penetration towards the core.However,the resin content didn't significantly affect total hot-pressing time.