通过可持续的超分支多聚胺来加强交叉连接网络,以获得优越的纸张湿强度
Yuxi Zhou1, Quanbo Huang1, Lei Wang1
1State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
ACS applied materials & interfaces
|March 18, 2024
概括
研究人员从植物材料中开发了一种新的超分支湿强剂 (OA-PI). 这种可持续的替代品显著提高了纸张的价值.
科学领域:
- 生物材料科学 生物材料科学
- 聚合物化学 聚合物化学
- 可持续的包装 包装是可持续的
背景情况:
- 纸张的湿强度有限,限制了它在液体接触包装中的使用.
- 目前的湿强剂,如聚胺-化 (PAE) 有环境和性能缺点.
研究的目的:
- 开发一种新的,可持续的超分支湿强剂,用于纤维素纸.
- 与传统方法相比,评估该剂的性能.
主要方法:
- 通过 Schiff 基反应通过氧化氨酸和多氨酸的交叉链接合成了一个超分支剂 (OA-PI).
- 将OA-PI应用于纤维素纸,并评估其湿强性质.
- 与PAE和基于粉的添加剂进行OA-PI性能比较.
主要成果:
- OA-PI显著提高了纸张的湿强度,性能优于PAE和粉添加剂.
- OA-PI的超分支结构促进了优质的交叉链接.
- 基于生物质的OA-PI证明了改进的可回收性和减少化有机化合物释放.
结论:
- 新型的OA-PI剂提供了一种可持续和有效的解决方案,用于提高纸张的湿强度.
- 这种方法为传统的湿强剂提供了更绿色的替代方案.
- 该研究强调了生物基功能粘合剂在纸业中的潜力.
相关概念视频
Polymer Classification: Architecture
2.7K
Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like structure with minimal to no branching at all. Even if a polymer features large substituent groups on the monomer, which appear as branches to the skeleton, it is not considered a branched polymer. A branched polymer contains secondary polymer chains that arise from the main polymer chain. The branching occurs when the polymer growth shifts from...
2.7K
Anionic Chain-Growth Polymerization: Overview
2.1K
The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...
2.1K


