Effect of phenol–carbamate bonds on the repair performance of polyurethane-modified asphalt and repair mechanism analysis

Effect of phenol–carbamate bonds on the repair performance of polyurethane-modified asphalt and repair mechanism analysis

To enhance the self-healing ability of polyurethane-modified asphalt (PUA), we prepared self-healing PUAs containing reversible phenol–carbamate bonds using cashew phenol phenolic resin (CPPR) and 4,4′-dihydroxy diphenyl sulfone (BPS) as chain extenders, denoted as CPPR-PUA and BPS-PUA, respectively...

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Bibliographic Details
Main Authors: Yujie Wang, Xili Yan, Kenan Li, Tao Ai, Kun Yang, Ying Liu
Format: Article
Language:English
Published: Elsevier 2025-07-01
Series:Case Studies in Construction Materials
Subjects:
Self-healing
Phenol–carbamate bond
Mechanistic analysis
Dynamic exchange
Online Access:http://www.sciencedirect.com/science/article/pii/S2214509525002529
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