Hassanpour Behnaz, Karbhari Vistasp M
Department of Civil Engineering, University of Texas Arlington, Arlington, TX 76006, USA.
Department of Mechanical and Aerospace Engineering, University of Texas Arlington, Arlington, TX 76006, USA.
Polymers (Basel). 2024 Aug 9;16(16):2265. doi: 10.3390/polym16162265.
Fiber-reinforced composites are commonly exposed to environments associated with moisture and solution, resulting in uptake, which causes changes in the bulk resin, the fiber-matrix interface, and even the fiber itself. Knowledge about uptake behavior and diffusion mechanisms and characteristics are critical to better understanding the response of these materials to environmental exposure faced through service to developing better materials through selection of constituents and to the prediction of long-term durability. This paper reviews aspects of uptake mechanisms and subsequent response, as well as models that describe the sorption process, with the aim of providing a comprehensive understanding of moisture-uptake-related phenomena and characteristics such as uptake rate, diffusion and relaxation/deterioration constants, transitions in regimes, and overall response.
纤维增强复合材料通常会暴露在与湿气和溶液相关的环境中，从而导致吸湿，这会引起基体树脂、纤维-基体界面甚至纤维本身发生变化。了解吸湿行为、扩散机制及特性对于更好地理解这些材料在服役过程中对环境暴露的响应、通过选择成分开发更好的材料以及预测长期耐久性至关重要。本文综述了吸湿机制及后续响应的相关方面，以及描述吸附过程的模型，旨在全面理解与吸湿相关的现象和特性，如吸湿速率、扩散和松弛/劣化常数、状态转变以及整体响应。
