相关实验视频

Updated: Jan 8, 2026

Advanced Self-Healing Asphalt Reinforced by Graphene Structures: An Atomistic Insight

Advanced Self-Healing Asphalt Reinforced by Graphene Structures: An Atomistic Insight

Published on: May 31, 2022

阐明分子兼容性机制,以指导草原青的优化

Weishuai Ji¹, Shuangshuang Liang¹, Wenyuan Xu²

¹Northeast Forestry University, Harbin, China.

Scientific reports

|December 12, 2025

概括

将草液化残留油 (SLRO) 添加到青上可以提高高温性能,但降低低温耐用性. 可持续生物青的最佳SLRO含量取决于平衡这些相互竞争的因素.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
可持续发展可持续发展可持续发展

背景情况:

对于可持续发展的日益增长的需求推动了对可再生青添加剂的兴趣.
草液化残留油 (SLRO) 是一种有前途的生物基材料,用于青改造.
了解SLRO-青兼容性和性能影响至关重要.

研究的目的:

调查SLRO和青之间的兼容性机制.
评估SLRO含量对青在不同温度下的性能的影响.
阐明生物的性能权衡的微观起源.

主要方法:

分子动力学 (MD) 模拟用于模拟分子间相互作用.
多个尺度的实验技术,包括动态剪切流体测量仪 (DSR) 和曲束流体测量仪 (BBR) 的测试.
在短期和长期老化后,分析各种SLRO含量 (高达10%的重量%) 的青样本.

主要成果:

模拟MD显示了增加的分子间相互作用和网络凝聚力达到10重%的SLRO.
经过短期老化后,DSR测试证实了10%的SLRO混合物在高温中改善了耐磨性.
BBR测试显示,10%的SLRO混合物在长期老化后的低温破裂阻力降低.

结论:

在SLRO-青中增强的分子网络在性能上表现出双重效应,提高了蚀阻力,同时降低了裂纹阻力.
最佳的SLRO内容取决于环境,需要在高温和低温性能之间保持平衡.
这些发现为设计和优化可持续生物青提供了机制基础.

关键词:

兼容性兼容性兼容性分子动力学 (MD) 是指分子动力学吸管液化残留油 (SLRO) 是一种草制成的青是由草制成的

更多相关视频

Production and Testing of Moisture Behavior and Thermal Properties of Rapeseed Straw and Ganoderma resinaceum Mycelium Bio-Composites

Production and Testing of Moisture Behavior and Thermal Properties of Rapeseed Straw and Ganoderma resinaceum Mycelium Bio-Composites

Published on: September 5, 2025

Evaluation of Integrated Anaerobic Digestion and Hydrothermal Carbonization for Bioenergy Production

Evaluation of Integrated Anaerobic Digestion and Hydrothermal Carbonization for Bioenergy Production

Published on: June 15, 2014

相关概念视频

Design Example: Managing Concrete Workability

Design Example: Managing Concrete Workability

This example deals with managing the workability of concrete for a raft foundation project under hot weather conditions. Workability is crucial for ensuring the concrete is easy to place, compact, and finish. In this scenario, a slump test — a common method to measure the workability of fresh concrete — initially indicated low workability. This was attributed to the rapid water loss from the concrete mix, exacerbated by the high temperatures causing the course aggregates to heat up.

Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)

Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)

Acyclic diene metathesis polymerization or ADMET polymerization involves cross-metathesis of terminal dienes, such as 1,8-nonadiene, to give linear unsaturated polymer and ethylene. As ADMET is a reversible process, the formed ethylene gas must be removed from the reaction mixture to complete the polymerization process.
Similar to cross-metathesis, ADMET also involves the formation of metallacyclobutane intermediate by [2+2] cycloaddition of one of the double bonds of a terminal diene with...

Additives and Fillers in Concrete

Additives and Fillers in Concrete

Additives and fillers are integral to enhancing the properties of concrete. Pozzolans and blast-furnace slag are additives or admixtures due to their reactions with calcium hydroxide released during cement hydration. Fillers, which are finely ground and similar in fineness to Portland cement, improve concrete attributes such as workability density, and reduce capillary bleeding or cracking. Some fillers possess hydraulic properties or participate in benign reactions within the cement paste.
The...