石膏刨花板的生产技术及应用前景

介绍了国内外石膏刨花板发展概况、现状、生产工艺及其特性,提出了石膏刨花板的应用前景。     

LX-D-Ⅲ型脲醛树脂胶的研制及在刨花板生产中的应用

对本公司使用的LX-D-Ⅱ脲醛胶进行配方及生产工艺的改进,使胶游离甲醛含量更低(<0.1%)。新胶命名为脲醛胶LX-D-Ⅲ,用其压制的刨花板甲醛释放量<9mg/100g,达到E1级板的要求;静曲强度≥15MPa,内结合强度≥0.5MPa,吸水厚度膨胀率≤6%,达到国家标准GB/T4897-2003的有关规定。     

刨花板握螺钉力测试方法比对试验

现行的刨花板标准GB/T 4897—2003《刨花板》和前版标准GB/T4897—1992《刨花板》中规定的握螺钉力测试方法有较大差异。分别按照两个标准中规定的测试方法对相同的刨花板进行了握螺钉力测试,结果显示,前者测试值偏低。因此,要满足现行标准的要求,应当相应提高刨花板的质量。     

稻草-木材复合空芯刨花板保温性能研究

作为衡量材料保温性能的主要依据,研究了稻草-木材复合空芯刨花板的导热系数,并与其他人造板、木质空芯刨花板的导热系数进行了比较。结果表明:稻草-木材复合空芯刨花板的导热系数比其他人造板略高,但与木材空芯刨花板相当。     

罗茨风机在刨花板厂粉尘输送中的应用

介绍刨花板厂粉尘采用罗茨风机系统输送的优势和设计的关键点。     

Mechanical characterization of industrial particleboard panels glued with cornstarch–mimosa tannin–urea formaldehyde resins

The aim of this work was to validate the utility and performance of optimal laboratory cornstarch–mimosa tannin-based resins in the industrial particleboard production. In this way, the cornstarch and mimosa tannin was introduced in the classic adhesive formulation in order to supply a part of urea-formaldehyde (UF). Our results show that industrial particleboard panels (8.2?m?×?1.85?m?×?19?mm) bonded with optimal cornstarch–mimosa tannin–UF (10:4:86; mass ratio) resins exhibited comparable mechanical properties to those of boards bonded with commercial UF resins and largely satisfied the exigencies of European norms EN 312. The formaldehyde emission levels obtained from panels bonded with cornstarch–mimosa tannin–UF were lower to those obtained from panels bonded with control UF. Finally, the addition of cornstarch and mimosa tannin improves markedly the water resistance of UF resins.     

空心刨花板生产与利用刍议

国内空心刨花板主要是在木门生产中使用。本文从原材料要求、施胶量、工艺流程、关键工艺要点等方面详细阐述了空心刨花板制作工艺,介绍了空心刨花板生产线的布置以及产品尺寸、外观、理化性能方面的质量要求。     

芦苇／木材复合包装材料制造工艺的研究

研究利用芦苇为原料制造单层刨花板的可行性。分别制备了纯杨木、纯芦苇、杨木/芦苇刨花板,按照国家标准的要求,对板材的物理性能（吸水厚度膨胀率）和力学性能（静曲强度、弹性模量、内结合强度）进行了测试。测试了芦苇添加量及热压时间对芦苇/木材复合材料性能的影响。试验结果表明,纯芦苇制造的刨花板的质量最差。杨木/芦苇刨花板的性能随着混合原料中芦苇含量的上升而下降,而适当延长热压时间可提高板材的物理力学性能。芦苇添加量不高于50％时,杨木/芦苇刨花板的力学性能达到国家标准的要求。     

Effect of some manufacturing variables on formaldehyde release from particleboard: Relationship between different test methods

Different standard methods were used to determine the formaldehyde emission (FE) from particleboard; some of them were defined as European, Japanese and American standards. This study aimed to determine the effect of some manufacturing variables on FE of particleboards produced using melamine–urea–formaldehyde (MUF) adhesive with low content of free formaldehyde. The FE from the two types of particleboard (uncoated and laminated of 16–19 mm thickness) was measured with gas analysis method (EN 717-2) as well as the formaldehyde content (FC) with perforator method (EN 120). The European chamber (EN 717-1), Japanese desiccator method (JIS A 1460) and American large chamber (ASTM E 1333-96) values were measured by the conversion factor. The two types of particleboard studies showed differences in their formaldehyde parameters. It was concluded that the amount of formaldehyde emitted from the most of the manufactured boards resulted in the emission class El. In addition, laminating and decreasing the board thickness had a highly significant effect (p < 0.001) on decreasing the formaldehyde parameters. The particleboard E1-emission class had approximately the same value according to the test methods and similar behavior was observed in the relationship between the EN 120 values and EN 717-1, JIS A 1460, the proposed California Air Resource Board (CARB) Phase 1 and 2. This article considers how to estimate the FE values of the international test methods using the conversion factor to eliminate the need for time consuming and expensive equipment.     

刨花板生产工艺节能探究

文章从节能降耗理念出发,分析刨花板的生产工艺、生产线设计布置、生产设备及生产规模的合理选择,提出刨花板生产工艺节能设计的具体方案,并探讨其生产实践的可能性,从而有效实现节能降耗。