冷木材填充聚乙烯苏辛酸宏纤维作为混凝土的增强材料
Jonas Herz1, Verena Schusser1, Dirk Muscat1
1Faculty of Engineering Sciences, Rosenheim Technical University of Applied Sciences, Hochschulstraße 1, 83024 Rosenheim, Germany.
Polymers
|February 13, 2025
概括
这项研究探讨了生物基聚合物纤维与纤维素和木材填充剂作为可持续的混凝土增强材料. 虽然填充剂降低了机械强度,但它们增强了混凝土的附着性,证明了它们的可行性.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 可持续材料 可持续材料
背景情况:
- 钢筋的腐蚀是混凝土行业的一个重大问题.
- 传统的聚合物增强剂由于其以石油为基础的来源,引发了环境问题.
- 在建筑材料中,越来越需要可持续的,非腐蚀性的替代品.
研究的目的:
- 研究生物基聚合物纤维的适用性,这些纤维由聚乙烯酸盐,纤维素和木材填充剂制成,作为混凝土增强材料.
- 评估填充剂类型,数量和颗粒大小对混凝土纤维特性和性能的影响.
- 评估这些新型生物基复合纤维的可持续性和机械性能.
主要方法:
- 使用多重绘制工艺生产具有不同纤维素和木材填充剂的聚乙烯酸盐纤维.
- 纤维通过拉伸测试,单纤维拉伸测试,接触角测量,显微镜,密度和热重力学分析进行纤维的表征.
- 评估与填充剂特性相关的纤维矩阵粘附和机械性能.
主要成果:
- 增加填充剂含量和颗粒大小降低了纤维的机械性能 (Young的模量为55%,拉伸强度为70%).
- 在添加填充剂后,混凝土的粘附性显著改善,达到0.90 ± 0.10 N/mm2.2.
- 纤维密度随着填充剂的添加而下降,热稳定性略有下降.
结论:
- 结合纤维素和木材填充剂的生物基聚合物纤维显示出作为可持续混凝土增强材料的前景.
- 优化填充剂成分和颗粒大小对于平衡机械性能和粘附性至关重要.
- 这项研究表明,实现环保混凝土钢筋解决方案的可行途径.
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