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八 ((3,3,3-三) 多面寡合物西尔斯基 (8F-POSS) 作为天然的多功能修饰剂:键模式和网络增强

Fan Yi¹, Wenjing Guo¹, Rentong Yu^1,2

¹School of Materials Science and Engineering, Hainan University, Haikou 570228, China.

International journal of molecular sciences

|March 14, 2026

概括

八度 ((3,3,3-trifluoropropyl) 多面寡合物丝素 (8F-POSS) 增强了天然的火化. 这种纳米级填充剂提高了无蛋白天然的阻尼性和疏水性,为高性能材料提供了一种战略.

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
纳米技术纳米技术

背景情况:

天然 (NR) 和非蛋白化天然 (DPNR) 是广泛使用的弹性体.
加入无机填充剂可以增强的性能,但在实现最佳分散和相互作用方面仍然存在挑战.
多面体寡合体丝素 (POSS) 作为纳米级混合填充剂提供了独特的特性.

研究的目的:

合成并将octa(3,3,3-trifluoropropyl) 多面寡合物丝素 (8F-POSS) 纳入NR和DPNR.
研究8F-POSS对火山化动力学,网络结构和填充剂-相互作用的影响.
评估8F-POSS/NR和8F-POSS/DPNR火山化物的性能,重点关注缩,热稳定性和耐油性.

主要方法:

通过顶点封顶方法合成8F-POSS.
使用NR和DPNR制造无机有机化物.
对固化特性,交叉连接密度和填充剂-相互作用参数 (α) 的评估.
二维红外 (2D-IR) 光谱检测填充剂-矩阵相互作用.
测量阻尼性能,玻璃过渡温度 (Tg),平衡膨胀,水接触角度和热稳定性.

主要成果:

8F-POSS减缓了火山化,但增强了网络完整性.
在NR中,蛋白质起到了兼容剂的作用,但高负载降低了强化效率.
DPNR火化物表现出更强的直接填充剂-相互作用和更受约束的物理网络.
8F-POSS/DPNR显示出协同效应的"增强-消耗"效应,导致增强的阻尼 (损失系数为1.26).
在8F-POSS/DPNR.中观察到改善的疏水性 (水接触角度>120°) 和减少油胀 (147%与324%).

结论:

8F-POSS有效地修改了NR和DPNR的特性,产生了高性能化物.
在NR中的蛋白质网络在填充剂分散和增强效率方面发挥着至关重要的作用.
脱蛋白化NR增强了填充剂-的相互作用,导致优越的阻尼和耐油性.
这项研究表明,使用纳米级混合填充剂设计先进的弹性体复合材料的可行策略.

关键词:

填充剂皮的相互作用.化多面体寡合物丝二氧化.键屏蔽是一种键屏蔽.疏水性是指对水的疏水性.天然天然的使用.耐油性耐油性耐油性

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