单板的厚度和配置方式对复合定向刨花板性能的影响

研究了单板厚度和配置方式对复合定向刨花板性能的影响。试验发现：１．复反的强度与刚度随着单板配置方向的改变而明显改变。当单板纹理方向与ＯＳＢ定向方向平行时，复合板在平行于ＯＳＢ定向强度与刚度明显增加，而且在纵横两个方向上的差异也增大；而当单板纹理方向与ＯＳＢ定向方向垂直时，复合板在纵横两个方面的强度与刚度趋于均匀。２．本试验中如果单板以纹理方向的与ＯＳＢ定向方向垂直配置，则在单板厚度为０．８５ｍｍ时     

定向结构刨花板吸声性能的研究

采用驻波管法测定定向结构刨花板的吸声系数,分析比较了定向结构刨花板与砖、混凝土吸声性能的差异。结果表明,定向结构刨花板具有良好的吸声性能。     

浸渍纸饰面定向刨花板性能研究

研究了定向刨花板覆以杨木单板和三聚氰胺浸渍纸贴面后的性能，并初步探讨了主要生产工艺参数对饰面定向刨花板性能的影响。研究的结果表明；在定向刨花板和三聚氰胺浸渍纸之间加入一张杨木单板进行一次性压贴在工艺上是可行的，定向刨花板经此法贴面后，物理力学性能明显提高，表面质量明显改善，“映像（telegraphing）”现象消除。     

竹定向结构刨花板的研究现状及其展望

概述了国内外竹定向结构刨花板的研究进展,总结了目前生产应用研究中存在的问题和不足,并提出了今后的研究发展方向。     

聚丙烯用量对复合刨花板性能影响的研究

研究了聚丙烯(PP)的不同加入量对竹材/塑料复合刨花板性能的影响。结果表明:随着PP含量的增加,板材的静曲强度(MOR)和弹性模量(MOE)值呈先上升后下降趋势,当PP含量为35％时达到较大值;随着PP含量的增加,吸水厚度膨胀率(TS)呈下降趋势。当PP加入量为35％时,板材的物理力学性能达到GB/T4897-92的B类优等品要求。     

竹木复合刨花板制造工艺研究

从胶水类型、施胶方法以及关键工艺参数等方面探讨了竹木复合刨花板的生产工艺,综合结果表明,竹木复合刨花板批量生产的工艺参数为:低摩尔比环保树脂胶、搅拌气流式喷胶法、竹刨花比例40%～60%、用胶量70 kg(干胶)·m-3、热压压力2.0 MPa、热压温度170℃、热压时间20 s·mm-1、刨花颗粒(芯层)0.5～1.0 mm、板厚8.8 mm。生产的竹木复合刨花板产品质量执行国家标准,质量可以达到国标A类刨花板一等品标准。     

国内外定向刨花板研究和发展动态

本文概述了定向刨花板在国外的发展过程，介绍了国内外近年来定向刨花板工艺技术研究的动向和进展，并对我国发展定向花刨板工业提出了一些建议。     

竹材覆面定向刨花板性能的研究

用竹席和竹帘对定向刨花板基材进行覆面处理并测试了覆面ＯＳＢ的主要物理力学性能，分析了覆面材料、组坯分式和施胶方法对覆面ＯＳＢ性能的影响。试验结果表明，竹材覆面ＯＳＢ的物理力学性能和耐老化性能比基材有很大程度的提高或改善。在本试验确定的涂胶量和热压工艺条件下，覆面材料与ＯＳＢ之间的胶合大于基材的内结合强度。覆面ＯＳＢ的吸水厚度膨胀率仅为基材ＯＳＢ的１／３左右。竹材覆面ＯＳＢ的承载能力和刚性与覆面材料     

新型模板材料──定向刨花板及其复制品

简述了定向刨花板（ＯＳＢ）的发展，介绍了ＯＳＢ及其复合制品的性能特点。通过模板用胶合板标准要求的比较，显示出ＯＳＢ是一种胶合板模板的替代材料。     

定向刨花板挠度与蠕变试验

采用正交异性的挠度方程计算四边筒支定向刨花板的中心点挠度，并在实验基础上对此进行验证，从而得到满足实际生产的定向刨花板挠度值计算公式，并对６ｍｍ，１０ｍｍ定向刨花板进行蠕变测试，找出持荷时间与挠度之间关系，进一步分析终挠度值与初挠度值之比，静曲强度和弹性模量损失量。     

Development of structural composite products made from bamboo I: fundamental properties of bamboo zephyr board

A study was conducted to determine the suitability of zephyr strand from moso bamboo (Pyllostachys pubescens Mazel) for structural composite board manufacture. Thirty-two 1.8×40×40cm bamboo zephyr boards (BZB) were produced using four diameters of zephyr strand (9.5, 4.7, 2.8, and 1.5mm) and four target densities (0.6, 0.7, 0.8, and 0.9g/cm³). Results indicate that BZB exhibits superior strength properties compared to the commercial products. The size of the zephyr strand and the level of target density had a significant effect on the moduli of elasticity and rupture, internal bond strength, water absorption, and thickness swelling, but they did not have a significant effect on linear expansion. With regard to the physical properties, BZB exhibited less thickness swelling and exhibited good dimensional stability under dry-wet conditioning cycles.Part of this research was presented at the 48th annual meeting of the Japan Wood Research Society, Shizuoka, April 1998; it was reported at the 4th Pacific Rim Bio-Based Composite Symposium, Bogor, Indonesia, November 1998     

Development of structural composite products made from bamboo II: fundamental properties of laminated bamboo lumber

This experiment explored the technical feasibility of using bamboo zephyr mat with pre-hot-pressed treatment for the manufacture of laminated bamboo lumber (LBL), which is similar in construction to that of laminated veneer lumber (LVL). Six LBL boards (made from four-ply bamboo zephyr mats) with approximate dimensions of 2×42× 42cm were fabricated using resorcinol-based adhesive. The experimental design involved three combinations of layered structures (types I, II, and III) and two LBL loading positions (H-beam and V-beam) during the bending test. These materials were then compared to ordinary LVL. Results indicated that the bending properties (moduli of rupture and elasticity) of LBL were comparable to those of LVL, but there was no significant effect on the physical and mechanical properties among the three types of LBL beam. Interestingly, orienting the glue line to the vertical direction (V-beam) could maximize the ultimate strength of the LBL.Part of this research was presented at the 49th Annual Meeting of the Japan Wood Research Society, Tokyo. April 1999, and at the Pacific Timber Engineering Conference, Rotorua, New Zealand, March 1999     

新型定向结构刨花板拌胶机的系统分析

介绍了样机的设计、系统结构与有关参数，这对进一步推动定向结构板设备和工艺的发展具有重要意义。     

定向刨花板投资效益的分析

定向刨花板是一种新型高强度木质刨花板，价格适中，用途广泛，原料来源丰富，投资效益好。如在我国能积极开展应用技术的研究，以开发和拓宽市场，亦将是人反工业投资的优选项目之一。     

竹材中密度纤维板（MDF）防霉研究

用厘竹、青皮竹、篙竹制成的MDF为试材,以国产TMO、DD及比利时的MECT三种防霉剂对其进行处理后,从板的物理力学性能及抗霉效力等方面进行比较表明,对木材有效的防霉剂并非对竹材MDF也有效。MECT与TMO比较,前者抗霉效力略高于后者,但前者使板的强度下降幅度较大,而价格约为后者的5倍。如果用法得当,TMO对竹材MDF的抗霉效力仍可达到100%。工艺试验结果表明,合适的制板工艺将使板的抗霉效果得到充分发挥,而且可以保证板的物理力学指标处于高水平前提下,确定其最低的原料及防霉剂消耗水平。     

重组竹制造工艺的研究

本文是作者在施胶量、热压温度和热压时间三个主要因子对重组竹性能影响的初步研究基础上又进一步探讨了施胶方式、竹纤维束水洗、胶种以及胶的浓度等因素对产品性能的作用。研究结果表明:竹纤维束水洗有较显著的作用;水溶性酚醛胶比醇溶性酚醛胶更适用于重组竹的制造,胶液浓度过稀不仅自身性能差,而且还会使重组竹性能降低;采用浸胶方法虽有利于胶液的均勻分布,但对IB未产生明显的作用。     

高性能定向刨花板的研制

通过来用低浓度低分子量的ＰＦ胶的浸胶工艺，进行了改进定向刨花板（简称ＯＳＢ）物理性能的研究试验。试验结果表明：这种工艺对降低ＯＳＢ厚度膨胀率，提高耐久性，减少蠕变，节约胶料有重要的实用价值。     

Effects of strand length and layer structure on some properties of strandboard made from bamboo

Strandboard panels were experimentally produced from moso bamboo (Phyllostachys pubescens) using various strand lengths and layer structures to evaluate the effects of manufacturing parameters on panel properties. The strandboard was fabricated in a laboratory using diphenylmethane diisocyanate (MDI) resin and laboratory-made strands of four lengths and four different structures. Strand alignment distributions and concentration parameter (k) values were greatly affected by strand length. A linear correlation was found between the value of k and the modulus of rupture (MOR), with correlation coefficients of 0.81 and 0.93 for unidirectional boards and three-layer boards, respectively. This correlation may be used to predict the strength properties of boards. Bending properties were significantly affected by both the strand length and the layer structure of the bamboo strandboard tested. Elasticity data from unidirectional boards and random boards can be used to predict the elastic properties of three-layer boards. The linear expansion (LE) of the random boards increased with decreasing strand length. The difficulty in mat forming and resin distribution for longer strands could cause deviation in modulus of elasticity (MOE) and LE, especially in strand lengths around 80 mm.