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以醇为辅助的 Acacia mangium 桑宁的脱聚合,以获得强度和快速固化的基于生物质的烯酸树脂

Pu Liu¹, Zhiqin Wang¹, Ruohong Bian¹

¹Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Longpan Road 159, Xuanwu District, Nanjing, 210037, China.

International journal of biological macromolecules

|February 27, 2026

概括

这项研究引入了一种新型的环保树脂,通过去聚合 Acacia mangium (AMT) 并将其与结合. 与传统树脂相比,新的脱聚合--甲 (DT-PF) 树脂提供更低的固化温度和更好的粘合性能.

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
可持续材料可持续材料

背景情况:

传统的甲 (PF) 树脂面临诸多挑战,包括高度依赖石油和升高的固化温度.
阿卡西亚皮 (AMT) 是一种可持续的,基于生物的替代原料,用于树脂开发.

研究的目的:

通过将Acacia mangium tannin (AMT) 纳入PF矩阵来开发一种新的脱聚合--甲 (DT-PF) 树脂.
为了评估新型DT-PF树脂的热性能和粘合性能.
为了将DT-PF树脂与传统的PF树脂和--甲 (T-PF) 树脂进行比较.

主要方法:

在60°C的酸性条件下,使用作为核爱素去聚合 Acacia mangium tannin (AMT).
使用MALDI-TOF-MS来确定其聚合度,去聚合AMT (AMT-d) 的特征.
DT-PF树脂是通过用AMT-d代替50%的来合成的.
使用差分扫描热量测量 (DSC) 和热重力测量分析 (TGA) 分析了热性能.
粘合性能通过膝盖剪切和合板测试进行评估.

主要成果:

脱聚合减少了AMT的聚合度从9降至2.
与传统PF树脂 (178.8°C) 相比,DT-PF树脂的固化温度较低 (145.7°C).
与T-PF树脂相比,DT-PF的残留率提高了12.3%,粘合强度增加了32.6%,解工作增加了114.5%.
在120°C固化时,DT-PF的粘合强度达到0.9 MPa,超过了PF (0.78 MPa) 和T-PF (0.62 MPa).

结论:

DT-PF树脂表现出快速固化率和卓越的粘合性能.
DT-PF具有很高的热稳定性,使其成为传统甲树脂的有希望的可持续替代品.
这项研究突出了利用生物基化物在高性能树脂应用中的潜力.

关键词:

粘附特性粘附特性烯酸树脂是一种烯酸树脂.坦宁的脱聚合法坦宁脱聚合法

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