DataVXACS Applied Polymer MaterialsPaper
journal article·2021-10-08

High-Performance Degradable Poly(hexahydrotriazine)s and Their Potential for Tribological Applications

Chunying Min, Yuzi Yang, Hongyu Liang, Zengbao He, Qiuying Li, Jinfeng Zhu, Kan Zhang, Haiting Shi, Wei Wang

ACS Applied Polymer Materials· Volume 3· Issue 10
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Source abstract

Abstract

The isomeric poly(hexahydrotriazine)s (PHTs) were prepared, based on their hemiaminal dynamic covalent networks via a facile method at 50 °C, through 1,3-bis(4-aminophenoxy)-benzene (TPE-R) and 1,4-bis(4-aminophenoxy)-benzene (TPE-Q) with formaldehyde. The influence of chain isomerism on thermal stability, mechanical properties, tribological properties, and the degradation rate of PHTs was investigated. The advantage of (TPE-Q)-PHTs compared with that of (TPE-R)-PHTs is that they possessed a higher glass transition temperature (Tg) of 187 °C, a higher Yang’s modulus of 10.7 GPa, and rapid degradation rate. Additionally, the (TPE-Q)-PHTs exhibited outstanding self-lubricating performance as compared to (TPE-Q)-PHTs because the para-connecting isomers showed lower surface energy, lower surface roughness, and higher hardness that effectively weakened the bonding force between friction pairs. Overall, the study of PHTs facilitates their practical application of energy conservation and environmental protection in the tribological industry.
Source: openalex_inverted_index · Quality: baseline

Research context

Ceramics & glasses

OpenAlex topics: Tribology and Wear Analysis · Synthesis and properties of polymers · Polymer Nanocomposites and Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Research School of Polymeric Materials, School of Materials Science & Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China

State Key Laboratory of Tribology Tsinghua University, Beijing 100000, P. R. China

National United Engineering Laboratory for Advanced Bearing Tribology, Henan University of Science and Technology, Luoyang 471023, P. R. China

Institute of Advanced Manufacturing and Modern Equipment Technology, School of Mechanical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China

School of Textile Science and Engineering, Tiangong University, Tianjin 300387, P. R. China

Funding

Natural Science Foundation of Jiangsu Province · State Key Laboratory of Tribology · National Natural Science Foundation of China · Project National United Engineering Laboratory for Advanced Bearing Tribology

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