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在聚乙烯糖酸共聚合物中的素强化

Nnaemeka Ewurum¹, Armando G McDonald¹

¹Department of Forest and Fire Sciences, University of Idaho, Moscow, ID 83844-1132, USA.

|January 25, 2025

概括

这项研究成功地从工业素中制造出可生物降解的聚乙烯酸盐 (PBS) - - 素共聚物. 交叉连接改善了性能,20%的素为大多数应用提供了平衡的增强.

科学领域:

聚合物科学与工程聚合物科学与工程
材料科学材料科学材料科学
可持续化学可持续化学

背景情况:

工业质素是制的副产品,是未充分利用的可再生芳香化合物的来源.
生物降解的聚合物,如聚乙烯酸盐 (PBS) 是寻求可持续材料应用.
将素价值化为功能性聚合物复合材料提供了一条减少浪费和增强材料性能的途径.

研究的目的:

为了研究可生物降解的聚乙烯酸盐 (PBS) - 素共聚物的生产和表征.
为了评估不同素含量和二甲基过氧化物 (DCP) 交联对共聚合物特性的影响.
为了确定最佳的宁度,以提高PBS-宁复合物的特定性能.

主要方法:

采用反应挤出技术,将聚乙烯酸盐 (PBS) 与工业素 (0-45重量) 混合并进行交叉连接. 百分之一). %).
进行了机械测试 (拉伸,曲),热分析 (DSC) 和形态研究 (SEM).
双过氧化物 (DCP) 用作交叉连接/移植剂,以改善接口粘附.

主要成果:

添加素降低了拉伸强度,但增加了PBS的刚性和热稳定性.
DCP交叉连接显著改善了界面粘附和柔性能,特别是在中等水平的素水平.
素最初提高了结晶温度,但在较高度下阻碍了结晶温度;SEM揭示了交叉连接的共聚合物中相分离的减少.

结论:

可生物降解的PBS-素共聚合物可以通过反应挤出成功制备.
与DCP的交叉连接对于减轻差的界面粘附和增强机械性能至关重要.
最佳的红素含量 (例如20个重量级). %) 提供了改善性能的平衡,没有显著的缺点.

关键词:

可生物降解的复合材料生物聚合物是一种生物聚合物.交叉连接交叉连接素增强强剂的素增强剂机械性能机械性能机械性能聚乙烯糖酸 (PBS) 是一种可再生材料是可再生的材料.热稳定性的热稳定性

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