Department of Engineering, Universidad Miguel Hernández, 03300 Orihuela, Spain.
Molecules. 2022 Oct 27;27(21):7305. doi: 10.3390/molecules27217305.
This paper analyzes the properties of composite particleboards made from a mix of giant reed with gypsum plaster and starch as binders. Experimental boards were manufactured with a 10:2 weight ratio of giant reed/gypsum plaster particles and different amounts of starch. Giant reed particles used were ≤0.25 mm. The mix was pressed at a temperature of 110 °C with a pressure of 2.6 MPa for 1, 2, and 3 h. The results showed that the boards manufactured with longer times in the press and with 10 wt.% starch achieved the best physical and mechanical properties, obtaining a modulus of rupture (MOR) of 17.5 N/mm, a modulus of elasticity (MOE) of 3196 N/mm, and an internal bounding strength (IB) of 0.62 N/mm. Thickness swelling (TS) at 24 h of the panels was reduced from 36.16% to 28.37% when 10 wt.% starch was added. These results showed that giant reed-gypsum-starch particleboards can be manufactured with physical and mechanical properties that comply with European standards for use in building construction.
本文分析了以石膏和淀粉为粘合剂的混合芦竹与石膏制成的复合刨花板的性能。实验板是用芦竹/石膏颗粒的 10:2 重量比和不同量的淀粉制成的。所用的芦竹颗粒粒径≤0.25mm。在 110°C 的温度和 2.6MPa 的压力下压制 1、2 和 3 小时。结果表明，在压机中压更长时间且添加 10wt.%淀粉的板材具有最佳的物理力学性能，获得的断裂模量（MOR）为 17.5N/mm，弹性模量（MOE）为 3196N/mm，内结合强度（IB）为 0.62N/mm。当添加 10wt.%淀粉时，板的 24 小时厚度膨胀（TS）从 36.16%降低到 28.37%。这些结果表明，芦竹-石膏-淀粉刨花板可以制造出符合欧洲建筑用物理力学性能标准的板材。
