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作 者:李腊梅 马红霞[1] 谢桂军[1] 李怡欣[1] 李万菊 LI La-mei;MA Hong-xia;XIE Gui-jun;LI Yi-xin;LI Wan-ju(Guangdong Provincial Key Laboratory of Silviculture,Protection and Utilization,Guangdong Academy of Forestry,Guangzhou 510520,Guangdong,P.R.China)
机构地区:[1]广东省森林培育与保护利用重点实验室,广东省林业科学研究院,广东广州510520
出 处:《林产工业》2024年第9期5-12,共8页China Forest Products Industry
基 金:广东省重点领域研发计划项目“高性能竹基纤维复合材料新工艺和新产品创制”(2020B020216002);韶关市科技计划项目“竹质工程材料高效利用技术研究与产业化示范”(220725176274052)。
摘 要:本研究采用低温固化环保型酚醛树脂为胶黏剂制备重组竹板材,探索热压温度、施胶量和板材密度对重组竹物理力学性能的影响。结果表明:当热压温度为125℃时,板材芯层温度即能达到胶黏剂的固化温度范围,且此条件下的板材密度均匀性、理化力学性能以及各项性能的稳定性更优。然而,热压温度升高对性能的改善不明显。当施胶量达到8.6%以上时,重组竹的密度可达到1.00 g/cm^(3),物理力学性能较优。In this study,low temperature curing environmentally friendly phenolic resin was used to prepare the bamboo scrimber,and the effects of hot pressing temperature,glue application rate,and board density on the physical and mechanical properties of the bamboo scrimber were investigated.The results showed that when the hot pressing temperature was 125℃,the core layer temperature of the bamboo scrimber can reach the curing temperature range of the adhesive,and the density uniformity,physicochemical mechanical properties and stability of the bamboo scrimber were better under this condition.However,the performance of the bamboo scrimber did not improve significantly with the increase of hot pressing temperature.When rate of glue application was above 8.6%,the density of the obtained bamboo scrimber can reach 1.00 g/cm^(3),which exhibited good physical and mechanical properties.
关 键 词:重组竹 低温固化环保型酚醛树脂 施胶量 制备工艺 力学性能
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