Effects of Moisture and Stresses on the Structure and Properties of Polyester Resin

Faitel'son, E. A.; Korkhov, V. P.; Aniskevich, Andrey; Starkova, Olesja

doi:10.1023/b:mocm.0000018464.53340.a2

Cited by 2 publications

(2 citation statements)

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“…Consequently, the 90° fiber sample exhibits a higher creep rate compared to the ±45° FFRP samples due to the unique characteristics and properties of the fiber‐matrix interface. Furthermore, previous research has emphasized that polyester resin exhibits limited moisture absorption ability at normal temperatures 48 . Since the humidity conditioning process in this study was conducted at an ambient temperature of 23°C, the moisture content of the resin is not significantly affected by changes in humidity.…”

Section: Resultsmentioning

confidence: 95%

“…Furthermore, previous research has emphasized that polyester resin exhibits limited moisture absorption ability at normal temperatures. 48 Since the humidity conditioning process in this study was conducted at an ambient temperature of 23 C, the moisture content of the resin is not significantly affected by…”

Section: Long-term Creep Behavior Of Ffrp In Different Relative Humid...mentioning

confidence: 99%

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Effect of environmental humidity on the creep behavior of flax fiber‐reinforced polymer composites

Hurk

Lugger

et al. 2023

Polymer Composites

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Flax fiber‐reinforced polymer (FFRP) composites are emerging popular environmental‐friendly construction materials. However, their significant creep properties have been a major concern for using FFRP in load‐bearing structures. This article presents an investigation of the effect of environmental humidity on the creep behavior of the FFRP. Samples with flax fiber in 0°, 90°, and ± 45° were manufactured, respectively, by the vacuum infusion method. Accelerated creep tests were conducted on samples in different relative humidities (RH), and the results were analyzed by the time–temperature superposition principle (TTSP). It is found the creep development of samples with 0° and 90° fiber increases with the RH, and their 30‐year total strain in 97% RH is about 10 times higher than that in 11% RH. The samples with ±45° fiber are found not obviously sensitive to the humidity change. The scanning electron microscope (SEM) check indicates the change in the fiber–matrix interface and cracks between microfibrils in a fiber bundle is the main reason for the change of creep behavior in high humidity. This study may benefit the design of structures made of natural fiber‐reinforced polymer composites, especially for load‐bearing structures working in high‐humidity environments.

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Section: Resultsmentioning

confidence: 95%

Section: Long-term Creep Behavior Of Ffrp In Different Relative Humid...mentioning

confidence: 99%