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通过响应表面方法通过有机-无机混合处理优化增强木的制备优化

Yong Wang^1,2, Xia He³, Layun Deng²

¹College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China.

Materials (Basel, Switzerland)

|October 28, 2023

概括

本研究介绍了一种混合木材处理方法,使用素衍生树脂 (LR) 和改性蒙莫里隆石 (GMMT) 来增强木的特性. 处理显著改善了密度,机械强度,并减少了水吸收和易燃性.

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
聚合物化学聚合物化学

背景情况:

快速生长的木种往往表现出较低的物理和机械性能.
提高木材的耐用性和性能对于可持续材料应用至关重要.
混合处理策略为木材复合材料的协同改进提供了潜力.

研究的目的:

开发和优化一种混合浸剂,用于处理快速生长的木.
评估混合处理对木的物理,机械和阻燃性能的影响.
用响应表面方法 (RSM) 确定浸的最佳条件.

主要方法:

制备了一种混合浸剂,由素衍生树脂 (LR) 和表面修饰蒙莫里隆石 (GMMT) 组成.
木样本使用RSM优化的浸工艺进行处理.
评估的属性包括密度,吸水量 (WU),破裂模量 (MOR),弹性模量 (MOE),压力强度 (CS) 和防火性能 (圆热量计).
材料表征是使用富里埃变换红外光谱仪 (FTIR) 和X射线衍射 (XRD) 进行的.

主要成果:

在最佳的治疗条件下,体重百分比增长 (WPG) 为36.2%,LR为34%,GMMT为1.8%,压力为1.2MPa,时间为99分钟.
经过处理的木材密度增加到0.72g/cm3.
水的吸收率 (WU) 从134.8%降至60.3%.
破裂模量 (MOR) 增加了62.3% (131.8 MPa),弹性模量 (MOE) 增加了77.7% (18.14 GPa),压力强度 (CS) 增加了94.7% (84.7 MPa).
峰值热释放率 (HRR) 降低了17.5%,至231.33 kW/m2.

结论:

混合浸剂有效地增强了木的物理,机械和阻燃性能.
优化的处理策略提供了一种可行的方法来提高快速生长的木材物种的性能.
这种混合处理方法为木材材料增强提供了可持续的途径.

关键词:

混合治疗混合治疗树木木的木材,就是树木.响应表面方法的方法.表面修饰的蒙莫里隆石.

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