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Fabrication and Design of Wood-Based High-Performance Composites
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超紫外屏蔽透明木材,用于隔热窗户的改进接口
Jingyu Wu1, Yun Shi1, Xiaolu Wen1
1MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China.
ACS applied materials & interfaces
|January 16, 2025
概括
透明木材复合材料为节能窗户提供了改进的光学和机械性能. 这种新材料有效地阻紫外线辐射,并提供出色的隔热,性能优于传统玻璃.
科学领域:
- 材料科学 材料科学 材料科学
- 可持续建筑材料 可持续建筑材料
- 聚合物复合材料 聚合物复合材料
背景情况:
- 透明木材 (TW) 正在探索节能建筑产品,但在尺寸,厚度和功能填充物集成方面面临限制.
- 现有的TW技术正在与光学和机械性能妥协作斗争,这阻碍了在窗口应用中广泛使用.
研究的目的:
- 开发一种具有增强光学,机械,隔热和紫外线屏蔽性能的木材复合材料 (WCM).
- 为了克服现有的透明木材的局限性,利用 peracetic acid (PAA) 脱,并将4-vinylphenylboric acid (VPBA) 纳入.
主要方法:
- 使用 peracetic acid (PAA) 制备了脱木材 (DW),以获得更好的结构完整性和聚合物透.
- 甲基甲酸盐 (MMA) 和4-乙烯基酸 (VPBA) 用于创建木材复合材料 (WCM).
- 评估了WCM的光学,机械,紫外线阻断和隔热性能.
主要成果:
- 通过PAA脱,保留了半纤维素和孔状结构,使得木材更厚,更大,更透明.
- 该WCM实现了大约90%的透射率和55%的雾,机械强度为64.5MPa.
- 该材料有效地阻断了100%的UV-C和UV-B,以及90%的UV-A辐射,同时保持了可见光透射率.
- 与传统玻璃相比,WCM的导热率较低,表明其绝热性能优越.
结论:
- 开发的WCM为窗户应用提供了对传统玻璃的有希望的替代品,因为其优越的光学,机械,UV阻断和热绝缘性能.
- 使用PAA和VPBA为克服透明木材技术现有的局限性提供了一条途径.
- 这种先进的材料非常适合节能建筑产品和可持续建筑.
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