Study on Outgassing Characteristics of Epoxy Glass Fiber Reinforced Plastic at Different Temperatures

SHI Yagang; CHEN Shuping; CHEN Lian; JIN Shufeng; WU Zongli

doi:10.13922/j.cnki.cjvst.202105010

CHINESE JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY > 2021 > 41(11): 1039-1045. > DOI: 10.13922/j.cnki.cjvst.202105010

SHI Yagang, CHEN Shuping, CHEN Lian, JIN Shufeng, WU Zongli. Study on Outgassing Characteristics of Epoxy Glass Fiber Reinforced Plastic at Different Temperatures[J]. CHINESE JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY, 2021, 41(11): 1039-1045. DOI: 10.13922/j.cnki.cjvst.202105010

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Study on Outgassing Characteristics of Epoxy Glass Fiber Reinforced Plastic at Different Temperatures

1. College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China;
2. Lanzhou Institute of Physics, Lanzhou 730000, China

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Received Date: May 11, 2021
Available Online: September 11, 2023

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Abstract

To explore the outgassing characteristics of epoxy glass fiber reinforced plastic(GFRP) at different temperatures, a mathematical model of the outgassing rate of epoxy GFRP corresponding to pumping time was established, which was based on a diffusion degassing model. The empirical parameters of this model are obtained by experimental data fitting. Meantime, the outgassing rate of epoxy GFRP at different temperatures was investigated by using the static pressurizing method. The results show that the outgassing rate of the epoxy GERP material gradually decreases with pumping time under a constant temperature. As the temperature increases, the outgassing rate of epoxy GFRP increases and presents an exponential decay law with pumping time. In addition, the outgassing components from the epoxy GFRP material were analyzed using a quadrupole mass spectrometer. The main gas component is H₂O, which also contains a small amount of H₂、CO、N₂ and O₂. The proportions of gas components discharged from GFRP materials are not varied with the increase of temperature, indicating that the temperature has no significant effect on the gas components distribution.
- Glass fiber reinforced plastic,
- Outgassing model,
- Outgassing rate,
- Gas composition,
- Mass spectrometry analysis

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