基于纳米纤维素的薄膜用于保护木制文物的表面
Paulina Kryg1, Bartłomiej Mazela2, Waldemar Perdoch2
1Department of Wood Science and Thermal Techniques, Faculty of Forestry and Wood Technology, Poznan University of Life Sciences, ul. Wojska Polskiego 38/42, 60-637 Poznan, Poland.
International journal of molecular sciences
|January 8, 2025
概括
这项研究探讨了纳米纤维素薄膜作为木制物品的保护贴片. 用西兰和甘油修改的薄膜提供了对降解的有希望的保护.
科学领域:
- 材料科学 材料科学 材料科学
- 保护科学 保护科学
- 木材科学 木材科学 木材科学
背景情况:
- 木制工艺品容易受到环境因素的表面裂和退化.
- 纳米纤维素薄膜 (CNPs) 提供了保护的潜力,但需要修改属性.
- 现有的保护方法可能无法充分解决复杂的表面损伤.
研究的目的:
- 研究纳米纤维素薄膜的特性,用于在损坏的木制物品上用作保护贴片.
- 评估糖醇可塑化和西兰功能化对纳米纤维素薄膜特性的影响.
- 为了确定改性纳米纤维素薄膜适用于木材保护应用的适用性.
主要方法:
- 纯纤维素纳米纸 (CNPs) 的制备.
- 通过 (3-Glycidyloxypropyl) trimethoxysilane 和 Methyltrimethoxysilane 实现 CNP 的功能化.
- 通过糖醇塑化CNP.
- 评估薄膜的特性,包括结构,水分含量,抗,弹性和表面特性.
主要成果:
- 纯粹的CNP是脆弱的,硬的和波浪的.
- 西兰的功能化增加了包装密度,降低了水分含量 (87-96%),并略有改善了耐性.
- 糖可塑化增强了灵活性,抗破裂性,光滑性,但增加了湿透性和模具脆弱性.
- 经过修改的CNP表现出良好的粘附性和颜色匹配潜力,与普通木材饰面相匹配.
结论:
- 用西兰基改性和用甘油塑性化的纤维素纳米纸显示出用于裂纹木制品的保护贴片的潜力.
- 这些修改过的薄膜可以减轻外部条件造成的进一步降解.
- 西兰功能化和甘塑化的结合提供了一种定制的方法,以提高纳米纤维素薄膜的性能,以保护.
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