【作者】 任一萍； 郭文静； 常亮；

【Author】 Yi-ping REN;Wen-jing GUO;Liang CHANG;Research Institute of Wood Industry,Chinese Academy of Forestry;

【机构】 中国林业科学研究院木材工业研究所；

【摘要】 将加工剩余的杉木板皮和边条加工成木条状,再通过浸胶、干燥、顺向组坯,用模具热压成形,制成具有木质花纹,性能优异的结构材。对影响重组结构材性能的3个因子浸渍液的树脂固体含量、结构材的密度及结构材的厚度进行单因子试验,结果表明,在相同工艺条件下浸渍液的树脂固体含量对其各项物理力学性能均有显著影响,结构材的密度对其静曲强度有显著影响,对弹性模量影响接近显著。在实验考察范围内结构材的厚度变化对各项物理力学性能影响均不显著,组坯时的材料排布的均匀度对密度分布的均匀性影响较大。更多还原

【Abstract】 The waste boards and splints of Chinese fir were made into pieces.These pieces were impregnated with PF resin solution.Then dried the moisture concentration to 6%-8%.These pieces were parallel put in a mould and hot pressed into structural lumber which had beautiful wooden pattern.Factors effecting upon the materials properties were investigated.The physical and mechanical properties of the parallel reconstituted structural lumbers(PRSL)were measured.The results showed that the content of impregnate resin solution affected all the physical and mechanical properties of PRSL significantly.ity of PRSL affected the MOR significantly.The thickness changing of PRSL effected on the properties of PRSL was not obviously.While the uniformity of these pieces assembled was the key factor which effected on the homogeneity of distribution of density of the structral lumber.更多还原