关于新稀土布达基因混合物的结晶行为及其对动态机械性能的影响的研究
Xiaohu Zhang1, Wenbin Zhu1, Xiaofan Li1
1Centers for Aircraft Science, Huangpu Institute of Materials, Guangzhou 510700, China.
Materials (Basel, Switzerland)
|January 11, 2024
概括
这项研究揭示了芳香TDAE油和交叉连接如何影响基于的丁 (Nd-BR) 结晶. 油阻碍了结晶,而填充剂促进了结晶,并且交叉连接显著限制了分子运动并降低了点.
科学领域:
- 聚合物科学 聚合物科学
- 材料科学 材料科学 材料科学
- 技术 技术 技术
背景情况:
- 基于的丁 (Nd-BR) 是一种具有独特结晶性质的关键材料.
- 了解影响Nd-BR结晶的因素对于优化其在各种应用中的性能至关重要.
- 环保添加剂和加工技术在聚合物制造中越来越重要.
研究的目的:
- 为了研究芳香TDAE油,填充剂 (碳黑,) 和交叉连接对Nd-BR结晶的作用.
- 量化结晶动力学,激活能量和点的变化.
- 分析对动态机械性能和玻璃过渡行为的影响.
主要方法:
- 差分扫描热量计 (DSC) 用于分析结晶温度和点.
- 亚拉米方程用于评估同热结晶动力学.
- 动态机械分析 (DMA) 用于评估粘弹性和玻璃过渡.
- 实验变化包括TDAE油的不同度以及填充剂和交叉连接剂的存在.
主要成果:
- 芳香TDAE油显著阻碍了Nd-BR结晶,降低了结晶温度并增加了激活能量 (Ea).
- 填充剂 (碳黑,) 作为核化剂,加速结晶,提高温度,减少 Ea.
- 交叉连接严重限制分子运动,抑制结晶,显著降低平衡点 (Tm0),并导致冷结晶行为.
结论:
- TDAE油和交叉连接对Nd-BR结晶产生负面影响,而填充剂则增强了它.
- 这些修改改变了关键参数,如激活能量和点,影响了材料的性能.
- Nd-BR结晶显著影响其玻璃过渡行为和动态机械反应.
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