酸颗粒粒大小分布对基甲酸基地质聚合物的微观结构和机械性能的影响
Jan Kohout1,2, Petr Koutník1, Pavlína Hájková1,2
1ORLEN UniCRE a.s., Revoluční 1521/84, 400 01 Ústí nad Labem, Czech Republic.
Materials (Basel, Switzerland)
|July 29, 2023
概括
细颗粒大小的酸增强地质聚合物结合剂粘度和溶解. 然而,地质聚合物复合物的机械性能随着平均颗粒大小超过10微米而下降.
科学领域:
- 材料科学 材料科学 材料科学
- 地质化学 地质化学
背景情况:
- 酸是地质聚合物复合材料的关键前体.
- 颗粒大小分布显著影响材料特性和反应性.
- 了解这些影响对于优化地质聚合物性能至关重要.
研究的目的:
- 研究化和磨砂酸颗粒大小分布对地质聚合物粘合剂特性和复合材料机械性能的影响.
- 为了比较高和高酸粘土石的行为,获得了酸.
- 为了建立粒子大小,质,孔隙结构和机械强度之间的关系.
主要方法:
- 在750°C下对考林和粘土石进行化,然后进行削,以获得不同的颗粒大小分布.
- 地质聚合物粘合剂制备,使用酸,活性激活剂和石英砂.
- 通过入孔径测量 (MIP),扫描电子显微镜 (SEM) 和旋转类风湿测量进行表征.
- 由此产生的地质聚合物复合材料的机械测试.
主要成果:
- 更细粒度的酸产生了更高的溶解 (10,000 mg/kg),而不是更粗的 (1000 mg/kg).
- 减少颗粒大小分布增加了地质聚合物粘合物的动态粘度,并减少了平均孔径大小.
- 当平均颗粒大小超过10微米时,地聚合物复合物的机械性能下降.
结论:
- 酸的颗粒大小工程对于控制地质聚合物粘合剂质学和孔隙结构至关重要.
- 优化酸颗粒大小对于实现地质聚合物复合材料所需的机械性能至关重要.
- 这些发现提供了关于为先进的地质聚合物应用量身定制酸前体的见解.
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