通过并行差距扫描热量测量 (DSC) 和动态机械分析 (DMA) 进行Si/Al>3活性甲醇糊的化学修复学
Raffaella Aversa1, Laura Ricciotti1, Valeria Perrotta1
1Advanced Materials Laboratory, Department of Architecture and Industrial Design, University of Campania, Via San Lorenzo, 81031 Aversa, Italy.
Polymers
|October 14, 2023
概括
研究了地质聚合物糊的特性,使用了风学和热分析来了解其从液体转化为固体的过程. 这项研究改善了地质聚合物在3D打印应用中的可重复性.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 聚合物化学 聚合物化学
背景情况:
- 地质聚合物比传统的水泥材料具有更高的性能,但需要更好地控制聚合,以提高可重复性.
- 控制粘度和凝对于地质聚合物3D打印至关重要,要求符合沉积要求的动力学.
研究的目的:
- 为了研究活性化金属/酸盐-氧化地质聚合物糊的反应动力学和粘弹性特性.
- 应用化学方法来理解无机可聚合系统,类似于有机耐热聚合物.
主要方法:
- 差分扫描热度计 (DSC) 和振荡动力机械分析 (DMA) 用于监测聚合.
- 动态热扫描以1°C/分钟和10Hz频率进行.
主要成果:
- 分析了聚合动力学和粘弹性特性变化,描述了聚合凝聚成寡合物和交叉链接.
- 确定了两个主要的行为区域:一个低于32.5%反应进度的粘弹性液体糊和一个高于32.5%的粘弹性固体.
- 复杂粘度在液态中从10−5到10−2 MPa*s,在固态中从1.9 MPa到9.6 x 102 MPa之间.
结论:
- 该研究提供了关于地质聚合阶段的见解,从液体糊到固态,这对于3D打印应用至关重要.
- 了解这些粘弹性转变可以提高地质聚合物结构材料的控制和可重复性.
关键词:
3D打印是一种3D打印.添加剂制造 添加剂制造 添加剂制造化学古迹学 化学古迹学不同扫描热量计差异扫描热量计.地质聚合物地质聚合物机械分析 机械分析甲基可林是一种甲基可林.热分析是一种热分析.粘性弹性 粘性弹性更多相关视频
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