新型生物基材料:从麻油到工程应用中的环氧树脂
Constantin Gaina1, Oana Ursache1, Viorica Gaina1
1"Petru Poni" Institute of Macromolecular Chemistry, 41A Gr. Ghica Voda Alley, 700487 Iasi, Romania.
Materials (Basel, Switzerland)
|August 26, 2023
概括
这项研究从氧化麻油中合成了新型环氧树脂,发现它们的性能与以石油为基础的替代品相似. 引入三甲基醇三甘乙烯提升了这些生物基环氧树脂的热稳定性.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 绿色化学 绿色化学
背景情况:
- 环氧树脂是多功能耐热聚合物,具有广泛的工业应用.
- 基于石油的环氧树脂主导着市场,但对可持续替代品的需求越来越大.
- 麻油是一种可再生资源,可以通过化学修饰来生产生物基环氧树脂.
研究的目的:
- 为了合成和表征来自氧化麻油 (ECO) 的新型环氧树脂.
- 研究这些生物基树脂的热,形态和介电性质.
- 为了比较ECO基环氧树脂与传统石油基环氧树脂的性能.
主要方法:
- 使用过氧酸氧化麻油以获得ECO.CO.的氧化.
- 使用ECO和三甲基三糖乙烯 (TMP) 与3 - 六-4 - 甲基甲酸无水化物 (MHHPA) 交联的环氧树脂的合成.
- 使用FT-IR,1H-NMR,热分析 (TGA),形态学研究 (SEM),介电光谱学和吸水试验进行表征.
主要成果:
- 成功合成并确认了ECO和环氧树脂的结构.
- 与基于石油的对应物相比,基于ECO的树脂表现出较低的玻璃过渡温度 (T).
- 添加TMP增加了含有ECO的树脂的T,但没有显著改变形态.
- 在广泛的频率和温度范围内分析了介电性质.
- 随着测试树脂温度的提高,吸水率下降.
结论:
- 环氧化麻油是合成生物基环氧树脂的可行前体.
- 基于ECO的环氧树脂的热稳定性可以通过结合TMP来提高.
- 这些生物基树脂显示出作为可持续替代石油基环氧树脂具有调节性质的可持续替代品的潜力.
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