室温发泡的基于素的非异酸聚氨泡的制备方法和特性
Dan Wu1, Qianyu Zhang1, Minghui Hou1
1Yunnan Key Laboratory of Wood Adhesives and Glued Products, College of Material science and Chemistry Engineering, Southwest Forestry University, 650224 Kunming, China.
International journal of biological macromolecules
|November 3, 2024
概括
这项研究开发了可持续的基于木质素的非异酸聚氨 (NIPU) 泡. 这些轻量级的绝缘泡具有出色的压力强度,非常适合用于建筑绝缘应用.
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
- 可持续化学 可持续化学
背景情况:
- 生物质衍生聚合物在化学工业中提供了可持续的替代品.
- 非异酸聚氨 (NIPU) 避免有毒的异酸,提高安全性和环境影响.
- 红是一种丰富的可再生资源,具有新型聚合物合成的潜力.
研究的目的:
- 为了合成基于素的非异酸聚氨 (L-NIPU) 树脂.
- 为了准备和表征L-NIPU泡,使用酸和甲.
- 评估L-NIPU泡作为建筑绝缘材料的潜力.
主要方法:
- 从红素合成L-NIPU树脂.
- 通过室温自泡制备L-NIPU泡.
- 泡属性的表征,包括密度,导热率和压力强度.
- 使用FT-IR和XPS进行化学结构分析.
主要成果:
- 轻量级的L-NIPU泡的密度在0.11-0.18g/cm3之间.
- 泡显示出低的导热率 (0.033-0.04 W/m·K).
- 最佳配方 (18%的酸,25%的甲) 产生了0.5 MPa压力强度和0.03559 W/m·K导热率的泡.
结论:
- 基于素的NIPU泡是可行的,可持续的材料.
- 由酸和甲形成的交联网络增强了机械性能.
- 这些泡在建筑物中作为绝缘板的应用方面显示出显著的前景.
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