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

机译:一些制造变量对刨花板甲醛释放的影响:不同测试方法之间的关系

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摘要

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 A1460) and American large chamber (ASTM E1333-96) 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 El-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 A1460, 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.
机译:使用了不同的标准方法来确定刨花板的甲醛释放量(FE)。其中一些被定义为欧洲,日本和美国标准。本研究旨在确定一些制造变量对使用游离甲醛含量低的三聚氰胺-脲-甲醛(MUF)粘合剂生产的刨花板的FE的影响。使用气体分析方法(EN 717-2)测量两种刨花板(未涂覆和层压的厚度为16-19 mm)的FE,并使用穿孔法(EN 120)测量甲醛含量(FC)。通过换算系数测量欧洲室(EN 717-1),日本干燥器法(JIS A1460)和美国大室(ASTM E1333-96)值。两种类型的刨花板研究表明其甲醛参数有所不同。结论是,大多数制造的木板排放的甲醛量导致排放等级为El。另外,层压和减小板的厚度对降低甲醛参数具有非常显着的影响(p <0.001)。根据测试方法,刨花板El排放等级的值大致相同,并且在EN 120值与EN 717-1,JIS A1460,提议的加利福尼亚空气资源委员会(CARB)第1阶段和2.本文考虑了如何使用转换因子估算国际测试方法的FE值,从而消除了对耗时且昂贵的设备的需求。

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