木质素或木质素磺酸盐对超低排放脲醛树脂粘接槟榔刨花板耐火性能的影响

IF 3 3区 农林科学 Q2 ECOLOGY Fire-Switzerland Pub Date : 2023-08-03 DOI:10.3390/fire6080299
E. W. Madyaratri, Muhammad Rasyidur Ridho, A. H. Iswanto, L. Osvaldová, Seng Hua Lee, P. Antov, W. Fatriasari
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引用次数: 0

摘要

为了满足对“绿色”木质产品不断增长的需求,槟榔果农场的农业废弃物通常在现场燃烧,可以用来提高替代木质纤维素原料的价值。本研究旨在研究和评价技术木质素(硫酸盐木质素或木质素磺酸盐)的添加对槟榔-超低排放脲醛树脂粘合刨花板性能的影响。根据适用的日本工业标准(JIS)对实验室制造的刨花板的物理性能、机械性能和防火性能进行了测试和评估。实验板的最高密度为0.84 g/cm3,用UF树脂和硫酸盐木质素的粘合剂混合,经过三种洗涤处理。三种洗涤方式、商品木质素和五种洗涤方式的木质素磺酸粘接板含水率最低,为9.06%,厚度膨胀率为71.16%,吸水率为129.17%。木质素磺酸胶接刨花板经5种洗涤处理后,MOR和MOE值最高,分别为113.49 kg/cm2和10,663 kg/cm2。有趣的是,所有实验室板都具有良好的防火性能,符合UL-94标准。通过气火炬试验,确定了木质素磺酸盐板材经5种洗涤处理后的最低失重率为16.7%。该研究表明,添加木质素基阻燃剂是生产具有增强阻燃性和低碳足迹的木质纤维素复合材料的可行方法。
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Effect of Lignin or Lignosulfonate Addition on the Fire Resistance of Areca (Areca catechu) Particleboards Bonded with Ultra-Low-Emitting Urea-Formaldehyde Resin
As a way to accommodate the rising demand for “green” wood-based products, agricultural waste from Areca (Areca catechu) nut farms, which is generally burned on-site, can be used to raise the value of alternative lignocellulosic raw materials. This research aimed to investigate and evaluate the effect of technical lignin (kraft lignin or lignosulfonate) addition on particleboard properties from areca bonded with ultra-low-emitting urea formaldehyde (UF) resin. The physical properties, mechanical properties, and fire resistance of the laboratory-made particleboards were tested and evaluated in accordance with the applicable Japanese industrial standards (JIS). The highest density of 0.84 g/cm3 was determined for the laboratory boards, bonded with an adhesive mixture of UF resin and kraft lignin with three washing treatments. The lowest moisture content of 9.06%, thickness swelling of 71.16%, and water absorption of 129.17% were determined for the boards bonded with lignosulfonate with three washing treatments, with commercial lignin, and with lignosulfonate with five washing treatments, respectively. The highest MOR and MOE values, i.e., 113.49 kg/cm2 and 10,663 kg/cm2, respectively, were obtained for the particleboards bonded with lignosulfonate with five washing treatments. Interestingly, all laboratory boards exhibited good fire resistance following the UL-94 standard. Based on the gas torch test, the lowest weight loss of 16.7% was determined in the boards fabricated with lignosulfonate with five washing treatments. This study demonstrated that adding lignin-based fire retardants represents a viable approach to producing lignocellulosic composites with enhanced fire resistance and a lower carbon footprint.
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来源期刊
Fire-Switzerland
Fire-Switzerland Multiple-
CiteScore
3.10
自引率
15.60%
发文量
182
审稿时长
11 weeks
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