聚氨复合材料的行为受到使用的本托尼特填充剂的特征的影响
Alpár Ferencz Hatvani-Nagy1,2, Ferenc Kristály3, Béla Viskolcz1,2
1Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, 3515, Hungary.
Scientific reports
|September 29, 2025
概括
这项研究探讨了不同的托尼特粘土如何影响聚氨 (PU) 泡. 特定的活性顿石增强了泡的稳定性和机械性能,而其他可以导致崩.
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
背景情况:
- 托尼特粘土是聚合物复合材料中宝贵的添加剂,改善了机械和热特性.
- 聚氨 (PU) 泡是多功能材料,其应用需要定制性能.
研究的目的:
- 调查不同类型的顿石对聚氨配方的风湿性行为和泡稳定性的影响.
- 为了确定增强PU泡性能和可用性的特定顿特征.
主要方法:
- 使用X射线衍射 (XRD) 对七个本托尼特样品 (原始和激活) 的表征.
- 在聚氨预混合物中加入顿石,用于质和稳定性评估.
- 评估泡的压力强度和反应动力学.
主要成果:
- 风湿学分析显示,本托尼特含量,粘度歇斯底里和泡稳定性之间存在强烈联系.
- 一些激活的丁石 (例如匈牙利的激活) 通过保持低的歇斯底里,提高了泡的完整性.
- 其他班托尼特 (例如,罗马尼亚,斯洛伐克Na-Ca,怀俄明Na) 在较高度时会导致泡崩.
- 小量的本托尼特添加物显著提高了泡的机械性能 (增强了250%以上).
- 匈牙利的活性土 (B3) 呈现出催化作用,减少了20%的反应时间.
结论:
- 班托尼特的类型和激活是实现稳定和机械强大的聚氨泡的关键因素.
- 特定的顿石可以在PU复合材料中充当质修饰剂和性能增强剂.
- 了解本托尼特-聚合物相互作用是优化填充剂选择以达到所需的泡性能的关键.
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