用p-toluenesulfonic酸治疗糖的治疗行为
Shunsuke Sakai1, Shuoye Chen1, Miyuki Matsuo-Ueda1
1Laboratory of Sustainable Materials, Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
Polymers
|January 17, 2024
概括
这项研究探讨了p-toluenesulfonic acid (PTSA) 作为基于糖的木材粘合剂的催化剂. PTSA能够在较低的温度下高效地固化,解决当前生物基粘合剂技术的局限性.
科学领域:
- 木材科学 木材科学 木材科学
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
背景情况:
- 对于可持续材料的日益增长的需求推动了对生物基木材粘合剂的研究.
- 目前的基于糖糖的粘合剂需要高的催化剂度和温度.
- 化石资源的枯竭需要替代传统木材粘合剂.
研究的目的:
- 为了研究p-toluenesulfonic acid (PTSA) 作为一种高效的酸催化剂,以糖糖为基础的粘合剂.
- 为了确定糖-PTSA (Suc-PTSA) 粘合系统的最佳固化条件.
- 评估Suc-PTSA粘合剂的固化行为和性能.
主要方法:
- 热分析 (TGA/DSC) 用于评估热性能.
- 不溶性物质比率分析,以确定最佳的混合比率和加热条件.
- 福利埃变换红外光谱法 (FT-IR) 用于识别化学变化.
- 动态粘弹性测量以评估固化开始温度.
主要成果:
- PTSA显著改变了糖糖的热性质.
- 对Suc-PTSA的最佳条件被确定为10分钟在180°C的95:5比.
- FT-IR证实了热处理的Suc-PTSA中存在化合物.
- 与其他糖糖粘合剂相比,Suc-PTSA的储存模量增加起始温度明显较低.
结论:
- 聚二硫酸 (PTSA) 是开发高效的基于糖的木材粘合剂的有希望的催化剂.
- Suc-PTSA允许在降低温度下更有效地固化.
- 这项研究为更可持续的木材粘合剂生产提供了潜在的途径.
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