多聚类型对聚氨水下固化性能的影响
Cheng Zhang1, Yixuan Zhang1, Yao Liu1
1State Grid Beijing Power Cable Company, Beijing 100022, China.
Polymers
|January 11, 2025
概括
这项研究开发了用于水下建筑的疏水性聚氨. 基于大豆和果仁贝油的聚氨表明了快速固化,最小的体积变化和在潮湿的表面上强大的粘附性.
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
- 建筑工程工程 建筑工程
背景情况:
- 水下建筑需要耐用材料,可以在潮湿的环境中有效地治愈.
- 传统的聚氨经常在水的存在下受到粘合不良和固化的影响.
- 开发专门的聚氨对于推进海洋和水下基础设施至关重要.
研究的目的:
- 合成和评估可用于水下应用的可造聚氨.
- 为了研究聚醇对水性和反应性对水下固化性能的影响.
- 确定最佳的聚氨配方,以在潮湿条件下提供强大的粘附性和稳定性.
主要方法:
- 聚氨的合成使用各种聚合物 (聚四甲),聚,麻油,大豆油,果仁油).
- 评估水下固化特征:体积膨胀,附着强度 (干/湿),反应外热,湿特性,界面张力和微观结构.
- 分析与反应活性和水溶性有关的结构属性关系.
主要成果:
- 具有较高的疏水性和异酸盐反应性的聚醇通过减少副作用来改善水下固化.
- 以大豆油为基础的聚氨和以果仁油为基础的聚氨显示出快速的凝时间 (1.15分钟和1.35分钟).
- 这些配方表现出最小的体积变化 (在水下7天后<2.5%) 和出色的湿粘度 (1.95MPa和2.38MPa).
结论:
- 疏水性和反应性聚醇是成功水下聚氨固化的关键.
- 基于大豆油和果仁油的聚氨非常适合水下建筑应用.
- 这些材料为各种水下工程需求提供量身定制的机械性能.
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