可持续的烯酸压敏粘合剂具有高温耐用性和可重复使用性
Yuehong Zhang1,2,3, Bin Wei1,3, Langlang Dai1,3
1College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.
ACS applied materials & interfaces
|December 15, 2025
概括
这项研究开发了一种可持续的烯酸压力敏感粘合剂 (PSA),其生物基含量为50%. 新型PSA提供了出色的高温耐用性和耐久性,支持循环经济目标.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 可持续化学 可持续化学
背景情况:
- 从可再生资源开发可持续的压力敏感粘合剂 (PSA) 对环境目标至关重要.
- 在PSA中的高生物基含量往往导致温度抵抗和机械耐用性降低.
- 这项研究解决了对高性能,环保PSA的需求.
研究的目的:
- 为了合成和表征一个可持续的烯酸PSA具有显著的生物基含量.
- 通过功能性单体合并和交联来增强PSA的热和机械性能.
- 评估开发的PSA的粘合性能,耐用性和适用性.
主要方法:
- 使用可再生甲酸 (LMA) 和四甲酸 (THFMA),以及石油衍生的2-乙乙烯酸 (2-EHA) 和甘甲酸 (GMA) 合成一种烯酸PSA.
- 通过结合GMA和与乙烯基酸盐 (AlACA) 进行交叉链接来定制粘合剂特性.
- 性能评估包括接,剪切时间,剥离强度,耐高温,耐溶剂和重新粘附能力.
主要成果:
- 获得了优化的PSA,生物基含量约为50%.
- 优化的PSA显示了5号钢球的接,25°C的剪切时间为303h (80°C的剪切时间为214.5h),剥离强度为7.7N/25mm.
- 观察到特殊的高温性能,在120°C的24小时后保持75%的剥离强度,以及出色的溶剂和重新粘合性.
结论:
- 成功开发了一种可持续的,高性能的烯酸PSA,含有50%的生物基含量.
- 这种PSA具有出色的热稳定性,机械耐用性和耐溶剂性,性能优于传统的PSA.
- 这项研究为PSA提供了一种可行的可持续替代方案,为循环经济和碳中立性做出贡献.
相关概念视频
Higher Mental Functions of the Brain: Language
Language is a system of communication that allows the expression of thoughts, ideas, and feelings. The brain processes language in both hemispheres.
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
Cerebral Hemispheres
The human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...
Lateralization
Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
Language and Cognition
Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
Learning Disabilities
Learning disabilities are cognitive disorders caused by neurological impairments that affect cognitive functions like language and reading, without indicating overall intellectual or developmental challenges. These disabilities differ from global intellectual or developmental disabilities as they are limited to distinct cognitive functions. Common learning disabilities include dysgraphia, dyslexia, and dyscalculia, each of which impacts unique aspects of learning.
Dyslexia
Dyslexia is a...
Dyslexia
Dyslexia is a...


