乳血清衍生的超分子网络使天然的硬化成为可能
Katsuhiko Tsunoda1, Mayank Dixit2, Yasuhiro Shoda3
1Sustainable Materials and Compounds, Bridgestone Corporation, Tokyo, Japan.
Macromolecular rapid communications
|October 30, 2025
概括
将干乳血清 (DS) 作为废物添加到天然 (NR) 中,可以显著提高其性. 这种可持续的方法提高了应变诱导结晶 (SIC) 的性能,扩大了其对要求高的应用程序的操作限制.
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
- 可持续材料 可持续材料
背景情况:
- 天然 (NR) 是一种可再生弹性体,其性来自应变诱导结晶 (SIC).
- SIC的有效性受到温度和延展率值的限制,阻碍其在苛刻条件下使用.
- 扩大NR的SIC活动制度是材料增强的关键挑战.
研究的目的:
- 研究废弃副产品干乳血清 (DS) 在增强天然中的SIC方面的潜力.
- 确定DS添加对NR机械性能和SIC行为的影响.
- 识别DS中负责加强SIC的特定组件,并了解底层机制.
主要方法:
- 机械测试 (例如,撕裂强度) 的NR与不同的DS度.
- 时间分辨率广角X射线散射 (TR-WAXS) 用于分析SIC发病和结晶性.
- 分子动力学模拟以阐明DS组件和NR链之间的相互作用.
- 对聚合物的系统选,以确定有效的增强剂.
主要成果:
- 此外,DS显著增加了撕裂强度,并扩大了NR的SIC活窗.
- 对SIC的上限温度提高了大约20°C,而应变率值增加了几倍.
- 在DS中发现的聚醇L-quebrachitol被确定为一个关键的强化剂,具有>3基组的聚醇是最有效的.
- TR-WAXS证实了DS修饰的NR的早期SIC发病和更高的结晶度.
- 模拟显示,多聚醇形成二叉键,创建动态网络,促进SIC.
结论:
- 干乳血清 (DS) 通过促进超分子网络的形成,有效地提高了天然的应变诱导结晶 (SIC) 和性 (NR).
- 这种方法提供了一种可持续的方法来提高NR的性能和利用废弃副产品.
- 这些发现为通过超分子增强来设计硬化软材料提供了总体框架.
更多相关视频
11:17Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction
Published on: January 19, 2016
23.0K
12:07Three-dimensional Biomimetic Technology: Novel Biorubber Creates Defined Micro- and Macro-scale Architectures in Collagen Hydrogels
Published on: February 12, 2016
9.7K
相关概念视频
Polymer Classification: Architecture
3.7K
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...
3.7K
Ziegler–Natta Chain-Growth Polymerization: Overview
3.9K
Ziegler–Natta polymerization is another form of addition or chain‐growth polymerization used for synthesizing linear polymers over branched polymers. The catalyst used for polymerization is the Ziegler–Natta catalyst, named after Karl Ziegler and Giulio Natta, who developed it in 1953. This catalyst is an organometallic complex of titanium tetrachloride and triethyl aluminum, with the active form of the catalyst being an alkyl titanium compound. Using the Ziegler–Natta...
3.9K
Anionic Chain-Growth Polymerization: Overview
2.5K
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,...
2.5K
