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基于氧化大豆油的压力敏感粘合剂的制备和结构特征,与茶叶聚烯棕酸盐接种
Jun Li1, Yongyan Kuang2, Wenlong Li2
1Food Engineering Technology Research Center/Key Laboratory of Henan Province, Henan University of Technology, Zhengzhou 450001, China; College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China.
International journal of biological macromolecules
|February 17, 2024
概括
植物油基粘合剂看起来很有前途,但很容易降解. 将茶叶多棕酸盐 (TPP) 等抗氧化剂植入氧化大豆油-PSA 中,可显著改善抗衰老特性和粘附强度.
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:
- 基于植物油的压力敏感粘合剂 (PSAs) 提供了可持续性,但由于不和键的原因,其粘合力较差,并且老化.
- 现有的PSA需要更高的稳定性和性能,以便更广泛的应用.
研究的目的:
- 通过接种常见的抗氧化剂来改善环氧化大豆油-PSA (ESO-PSA) 的抗衰老特性和粘附强度.
- 为了确定最有效的抗氧化剂,并优化反应条件以提高PSA性能.
主要方法:
- 在ESO-PSA系统中植入了9种抗氧化剂.
- 优化条件涉及ESO与茶叶聚棕酸盐 (TPP),烯酸和酸进行反应.
- 使用剥离强度,循环接,微分扫描热量计 (DSC),热重力测量分析 (TGA),FTIR和1H NMR来评估性能.
主要成果:
- 在测试的抗氧化剂中,TPP表现最好,防止失效,显著改善皮肤强度和循环接.
- 在最佳条件下,剥离强度为2.460N/cm,环强度为1.66N,剥离强度残留改善.
- 电力接增强了热稳定性,并略微提高了ESO-PSA的玻璃过渡温度.
结论:
- 茶叶聚棕酸盐 (TPP) 是一种有效的抗氧化剂,可以增强植物油基PSA的性能.
- 优化的ESO-PSA配方表现出优越的粘附性,稳定性和热性能.
- 酸,酸和乙烯在交联聚合过程中参与,为网络结构和改善PSA特性做出了贡献.
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