一种新的基于的木材聚氨薄膜:腐烂,人工气候变化,物理和形态特征
Swati Tamantini1, Sara Bergamasco1, Miha Humar2
1Department for Innovation in Biological, Agro-Food and Forest Systems, University of Tuscia, Via San Camillo de Lellis s.n.c., 01100 Viterbo, Italy.
Molecules (Basel, Switzerland)
|December 31, 2025
概括
基于素的聚氨涂层为木材提供了基于化石的替代品的可持续替代品. 这些生物基涂料具有相似的功能保护和耐用性,特别是在抗真菌腐烂和蓝色污染方面.
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:
- 开发可持续的木材涂层对于减少对化石燃料的依赖至关重要.
- 作为一种可再生生物聚合物,氨酸在聚氨合成中可以部分取代化石衍生的聚.
- 基于有机溶解的素聚氨 (LPU) 为木材保护提供了一个有希望的环保替代品.
研究的目的:
- 合成和评估用于木材应用的基于素的聚氨 (LPU) 涂层.
- 为了比较LPU与商业化石基聚氨 (CPU) 在欧洲木材种类上的性能.
- 评估LPU涂层的耐用性,稳定性和对生物降解的抗性.
主要方法:
- 合成的有机溶解素基聚氨 (LPU).
- 在木 (Fagus sylvatica L.) 和杉木 (Picea abies L.) 上应用LPU和商用聚氨 (CPU).
- 评估了颜色稳定性,光泽性,可湿性,粘附性,机械耐力和生物耐用性 (腐烂和蓝色斑点真菌).
- 在光照射下进行加速老化,并通过SEM评估表面形态.
主要成果:
- LPU涂层产生了一种色,较暗的薄膜,具有出色的色彩稳定性和在老化过程中最小的光泽变化.
- 在木上,LPU显示出更高的初始疏水性,而在杉木上,其疏水性与CPU相比较.
- 虽然CPU具有优越的粘附性和机械阻力,但LPU提供了对蓝色污点真菌 (尤其是杉) 的增强保护和均的衰变阻力.
- 尽管LPU的外观较暗,但其功能保护与CPU的功能保护相当.
结论:
- 基于素的聚氨 (LPU) 是一种可行的基于生物的替代品,用于地面上的木材涂层.
- 液压聚烯提供了与商业化石聚氨相提并论的功能保护.
- 该研究证实了红素作为可持续木材涂层配方的可再生资源的潜力.
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