Enhancement of impact properties of CFRP by inserting the non-hydrophobized cellulose nanofiber dispersion layer using an aqueous solution of epoxy resin
Enhancement of impact properties of CFRP by inserting the non-hydrophobized cellulose nanofiber dispersion layer using an aqueous solution of epoxy resin
复制标题
使用环氧树脂水溶液插入非疏水化纤维素纳米纤维分散层来增强CFRP的冲击性能
DOI：
10.1080/15376494.2021.1954270
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发表时间：
2021
影响因子：
2.8
通讯作者：
Sasaki Katsuhiko
中科院分区：
文献类型：
--
作者：
Katagiri Kazuaki;Okumura Toshihiko;Kawakita Sonomi;Sonomura Hirosuke;Honda Shinya;Sasaki Katsuhiko
纤维素纳米纤维（CNFs）是一种高强度、轻质的环保型纳米填料。为了提高碳纤维复合材料的冲击性能，碳纤维的应用前景广阔。然而，由于其亲水性，疏水处理是不可避免的。采用环氧树脂水溶液法制备了碳纳米纤维（CNF）弥散层CFRP。由示波冲击试验可知，冲击力波形有两个峰值，第二个峰值被CNF弥散层放大。研究了一种利用纤维素纤维增强复合材料（CNF）提高CFRP冲击性能的新方法，通过将CNF分散在环氧树脂水溶液中，消除了疏水处理，插入CNF分散层，使CFRP的冲击值提高了6%。
Cellulose nanofibers (CNFs) are environmental-friendly nanofiller with high strength and lightweight. To improve the impact properties of carbon fiber reinforced plastics (CFRPs), the application of CNF is expected. However, hydrophobic treatment was unavoidable due to its hydrophilicity. In this study, by adopting an aqueous solution of epoxy resin, the CFRP with CNF dispersion layer was fabricated. From the instrumented Charpy test, it was revealed that the waveform of impact force has two peaks, and the second peak was enlarged by the CNF dispersion layer. As a result, Charpy impact value of the CFRP was increased up to 6%.HighlightsA novel method to enhance the impact properties of carbon fiber reinforced plastic (CFRP) by using cellulose nanofiber (CNF) was developed.By dispersing CNFs in an aqueous epoxy solution, hydrophobic treatment was eliminated.Inserting the CNF dispersion layer increased the Charpy impact value of CFRP up to 6%.
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