Use of Cryptomeria japonica wood for the production of particleboard.
Use of Cryptomeria japonica wood for the production of particleboard.
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DOI：
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发表时间：
2013
影响因子：
0.5
通讯作者：
R. Trianoski;S. Iwakiri;J. L. Matos;Daniel Chies
中科院分区：
文献类型：
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作者：
R. Trianoski;S. Iwakiri;J. L. Matos;Daniel Chies
本研究旨在探讨柳杉纯材与松木混合材制造刨花板之可行性。以0、20、40、60、80和100%的日本柳杉颗粒相对于松属物种的比例生产板，使用基于颗粒的烘干重量为8%固体的脲-甲醛树脂。通过在160°C的温度、4 MPa的压力下压制8分钟的处理来生产3块板。评价的工艺性能是密度（EN 323：2002）;板材的压缩比;浸泡2小时和24小时后的吸水性和厚度膨胀（EN 317：2002）;内部粘合（EN 319：2002）;静态弯曲（EN 310：2002）和螺钉的拔出阻力（NBR 14810：结果采用Grubbs检验、Bartlett检验、Shapiro Wilks检验、方差分析和Tukey检验表明，柳杉木材的低密度增加了板材的压实率，改善其机械性能和尺寸稳定性。此外，从规范要求出发，验证了柳杉纯材或柳杉与松木混合用于刨花板生产的可行性。
The objective this research was to evaluate the feasibility of using Cryptomeria japonica wood, pure or mixed with the wood of Pinus spp for the production of particleboard. The boards were produced in the proportions of 0, 20, 40, 60, 80 e 100% of particles of Cryptomeria japonica in relation of Pinus spp., using urea-formaldehyde resin at 8% solids, based on oven dry weight of the particles. 3 boards were produced by treatment, which were pressed at a temperature of 160°C, pressure of 4 MPa for 8 minutes. The technological properties evaluated were density (EN 323:2002); compression ratio of the panels; water absorption and thickness swelling after 2 and 24 hours of immersion (EN 317:2002); internal bond (EN 319:2002); static bending (EN 310:2002) and pullout resistance of the screw (NBR 14810:2006).The results were analyzed by Grubbs test, Bartlett test, Shapiro Wilks test, ANOVA and Tukey test and indicated that the low density of Cryptomeria japonica wood increased the compaction ratio of the panels and contributed to improve its mechanical properties and dimensional stability. Furthermore, from normative requirements, the feasibility of using Cryptomeria japonica wood, in pure form or mixed with wood of Pinus spp for the production of particleboard was verified.