CAJ | 학술논문

探讨利用酚醛树脂胶黏剂压制桉木单板层积材的工艺,分析了热压温度、热压时间和面粉添加量对桉木单板层积材力学性能的影响。研究表明：面粉添加量对桉木单板层积材的静曲强度和弹性模量有显著影响,而热压温度和热压时间的影响则不显著。就产品力学强度而言,较佳的工艺条件为：热压温度135℃,热压时间1.2 min/mm,面粉添加量0。验证试验证明,在实际生产中,综合生产成本及产品性能等多方面考虑,添加15%的面粉是可行的。
탐토이용분철수지효점제압제안목단판층적재적공예,분석료열압온도、열압시간화면분첨가량대안목단판층적재역학성능적영향。연구표명：면분첨가량대안목단판층적재적정곡강도화탄성모량유현저영향,이열압온도화열압시간적영향칙불현저。취산품역학강도이언,교가적공예조건위：열압온도135℃,열압시간1.2 min/mm,면분첨가량0。험증시험증명,재실제생산중,종합생산성본급산품성능등다방면고필,첨가15%적면분시가행적。
The manufacturing technology of laminated veneer lumber（LVL） from eucalyptus wood with phenol formaldehyde resin was investigated.The orthogonal design method was used to analyze the effect of hot-pressing temperature,hot-pressing time,and amount of flour addition on the mechanical properties of LVL products.Results indicated that： amount of flour addition had significant effect on MOR and MOE,whereas hot-pressing temperature and hot-pressing time did not.For products requiring high mechanical properties,the optimal parameters are： hot-pressing temperature 135 ℃,hot-pressing time 1.2 min/mm,amount of flour addition 0.However,in practical consideration of reducing adhesive to control the cost,flour can be added up to 15%.