通过改变酸的分子结构来利用一种新的核剂,并对聚烯的应用特性产生影响
Fuhua Lin1,2, Mi Zhang3, Tianjiao Zhao4
1School of Traffic Engineering, Shanxi Vocational University of Engineering Science and Technology, Jinzhong 030619, China.
Polymers
|December 23, 2023
概括
开发了一种新的聚烯核化剂APAl-3C-12Li,与商业NA-21相比,其光学性能得到了改进. 这种有机酸盐类型的制剂在聚烯复合材料中提供了更好的分散性和增强的机械性能.
科学领域:
- 聚合物科学 聚合物科学
- 材料化学 材料化学
背景情况:
- 聚烯 (PP) 是一种广泛使用的热塑性聚合物.
- 提高PP的性能,如光学清晰度和机械强度,对于先进的应用至关重要.
- 核化剂 (NA) 是控制PP结晶和形态的关键添加剂.
研究的目的:
- 为了合成和描述一种新的有机酸盐类型核化剂,APAl-3C-12Li.Li.
- 评估APAl-3C-12Li在聚烯随机共聚合物的性能,将其与商业NA-21进行比较.
- 研究APAl-3C-12Li对PP结晶,微观结构,机械和光学性能的影响.
主要方法:
- 合成APAl-3C通过用异基组替换NA-21酸性部分的-OH组.
- 使用光谱学和元素分析进行结构分析.
- 通过差分扫描热量计 (DSC) 和热重力计 (TG) 进行热稳定性评估.
- 对PP复合材料的结晶温度,雾和机械性能进行评估.
主要成果:
- APAl-3C-12Li表现出良好的热稳定性,在230°C以下的最低分解.
- 含0.5%重量%APAl-3C-12Li的PP复合材料的结晶温度为118.8°C,相当于NA-21.
- 与NA-21.21相比,APAl-3C-12Li的雾值显著降低 (9.3%).
- 改进的光学和机械性能归因于APAl-3C-12Li在PP矩阵中的较弱极性和更好的分散.
结论:
- APAl-3C-12Li是一种有前途的新型聚烯核化剂.
- 这种剂提供了优越的光学性能和增强的机械性能,由于改善散射.
- 经过修改的有机酸盐结构为PP提供了现有的商业核化剂的可行替代品.
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