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表面粗性,动态可湿性和改性胺甲基粘合剂在Jabon木材上的相间
Yusup Amin1,2, Naresworo Nugroho2, Effendi Tri Bahtiar2
1Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Cibinong 16911, Indonesia.
Polymers
|April 27, 2024
概括
这项研究检查了Jabon木材的表面粗性和用甲胺 (MF) 粘合剂湿透性. 经过修改的MF-1粘合剂比商业MF-0具有更好的木材粘合性能,由较低的湿度和增强的相间刚度表明.
科学领域:
- 材料科学 材料科学 材料科学
- 木材科学 木材科学 木材科学
- 粘附科学 粘附科学 粘附科学
背景情况:
- 表面性能,如粗性和湿透性,对于木质层状产品和粘合剂粘合至关重要.
- 贾邦木材的表面特性和与美甲 (MF) 粘合剂的相互作用需要进行详细的研究,以优化产品开发.
研究的目的:
- 在使用商用 (MF-0) 和改性 (MF-1) 胺甲粘合剂处理时,研究Jabon木材的表面粗性和动态浸湿性.
- 通过使用动态机械分析 (DMA) 来分析木质粘合剂间相的粘性弹性特性.
主要方法:
- 测量表面粗度是使用笔型的 profilometer.
- 通过低键轴对称下降形状分析 (LB-ADSA) 评估动态湿度,以确定使用Shi和Gardner (S/G) 模型的接触角度和湿度 (K值).
- 使用动态机械分析 (DMA) 评估了木质粘合剂间相的粘性弹性特性.
主要成果:
- 贾邦木的表面粗度 (Ra) 在5.62至6.94μm之间,触角/半径 (T/R) 表面比辐射 (R) 和触角 (T) 表面粗.
- 与修改后的MF-1 (K值:0.136-0.212) 相比,商用MF-0粘合剂的湿透性更高 (K值:0.262-0.331),这表明湿透更容易.
- 木材-MF-1介面表现出比木材-MF-0介面显著更高的最大刚度 (2734 N/m在110.5 °C) 和储存模量 (22,950 MPa在113.5 °C).
结论:
- 修改后的MF-1粘合剂与商业MF-0相比,由于其较低的湿度和增强的相间机械性能,为Jabon木材提供了更好的粘合力.
- 贾邦木材的表面粗度,特别是在T/R表面,会影响粘合相互作用和相间性能.
- 了解这些表面和相间特性对于提高用MF粘合剂粘合的层状木制品的耐用性和性能至关重要.
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