کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5205620 | 1502934 | 2016 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Water absorption test for carbon fiber epoxy resin composite based on electrical resistance
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Electric contacts were inserted into a carbon fiber epoxy resin composite to research the relationship between water absorption and resistance, which allowed the diagnosis of composite water absorption in a nondestructive way. The results show that the carbon fiber in the composite form does not absorb water from the environment, and its resistance remained unchanged when immersed in water. However, the resistance of the composite increased after water was absorbed along the fiber until the specimen reached saturation, which resulted in a sudden increase in resistance. The transverse resistance changed logarithmically in relation to water absorption. The data fitting equation is y = 2.03 Ã lg(x)â6.26 (R2 = 0.98), where x is the transverse resistance after water absorption (Ω), and y is the weight gain rate after water absorption (%). According to this equation, the weight gain rate of the composite can be calculated from the transverse resistance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Testing - Volume 56, December 2016, Pages 394-397
Journal: Polymer Testing - Volume 56, December 2016, Pages 394-397
نویسندگان
Zhe Zhai, Lajun Feng, Zheng Liu, Guangzhao Li,