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Updated: Jun 5, 2025

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Fabrication and Design of Wood-Based High-Performance Composites
Published on: November 9, 2019
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用高分支聚合物对木材表面进行根植灵感的接种,以增强表面粘合力,用浸的装饰纸增强表面粘合力
1School of Materials Science and Technology, Beijing Key Laboratory of Wooden Material Science and Application, Beijing Forestry University Haidian Beijing 100083 China caoj@bjfu.edu.cnw.
RSC advances
|December 10, 2024
概括
一种新的类似根的聚合物修饰剂通过改善粘附性和防止裂来增强板块表面. 这种环保的水溶液为木制面板提供了卓越的稳定性和抗裂性能.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 木材科学 木材科学 木材科学
背景情况:
- 木制面板,如木板,易受表面裂的影响,特别是当用装饰纸层叠时.
- 改善木质基板和树脂浸纸之间的界面粘附性对于防止表面缺陷至关重要.
- 现有的表面改造方法可能缺乏环保性或足够的性能.
研究的目的:
- 开发和评估一种新的类似根的水性超分支聚合物,作为块板的表面修饰剂.
- 为了增强板块和胺-甲 (MF) 树脂浸的装饰纸之间的接口粘附.
- 为了研究修饰器对板材特性,如尺寸稳定性和抗裂性等变量器的影响.
主要方法:
- 从二甲基胺 (DETA) 和甲基烯酸盐 (MA) 单体中合成一种水性超分支聚合物.
- 将聚合物与水性异酸盐SK615配制,以创建MD-HBP-NH2修饰剂.
- 将修饰剂应用于块板,然后用MF树脂浸纸进行分层.
- 对多重凝聚反应的表征和对不同温度下的板性能的评估.
主要成果:
- 通过迈克尔加法反应成功形成了一个超分支的根结构聚合物乳液.
- 用修饰剂处理的块板表现出增强的平面性和维度稳定性.
- 最佳性能,包括1.28毫米的透深度和优越的抗裂性能,在155°C的多重凝结温度下实现.
- 通过聚合物功能组 (异酸盐,氨基) 和MF树脂/木质基组之间的反应,证实了增强的界面结合.
结论:
- 开发的水borne超分支聚合物修饰器有效地防止装饰纸板板上的表面裂.
- 修饰器显著改善了接口粘附性,维度稳定性和表面平面性.
- 这种具有低VOC的环保,无毒的修饰剂为木制面板增强提供了一个有希望的可持续解决方案.
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