[1]黃玉東.碳纖維雜化增強體的制備及其對復合材料界面性能的影響[J].中國材料進展,2013,(4):041-50.[doi:10.7502/j.issn.1674-3962.2013.04.03]
HUANG Yudong.Preparation of Carbon Fiber Hierarchical Reinforcementand Its Effect on the Interfacial Property of CarbonFiber/Epoxy Composites[J].MATERIALS CHINA,2013,(4):041-50.[doi:10.7502/j.issn.1674-3962.2013.04.03]
點擊復制
碳纖維雜化增強體的制備及其對復合材料界面性能的影響(
)
中國材料進展[ISSN:1674-3962/CN:61-1473/TG]
- 卷:
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- 期數:
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2013年第4期
- 頁碼:
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041-50
- 欄目:
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特約研究論文
- 出版日期:
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2013-04-30
文章信息/Info
- Title:
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Preparation of Carbon Fiber Hierarchical Reinforcementand Its Effect on the Interfacial Property of CarbonFiber/Epoxy Composites
- 作者:
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黃玉東
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（哈爾濱工業大學化工學院 哈爾濱 150001）
- Author(s):
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HUANG Yudong
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（School of Chemical Engineering and Technology， Harbin Institute of Technology， Harbin 150001， China）
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- 關鍵詞:
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多面體低聚倍半硅氧烷; 碳納米管; 碳纖維; 復合材料; 界面改性
- DOI:
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10.7502/j.issn.1674-3962.2013.04.03
- 文獻標志碼:
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A
- 摘要:
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為了改善碳纖維/環氧樹脂復合材料的界面性能，使用八縮水甘油醚基多面體低聚倍半硅氧烷（POSS）作為偶聯劑，將碳納米管（CNTs）接枝在碳纖維表面，成功制備了碳纖維/POSS/ CNTs雜化增強體。通過X-射線光電子能譜、掃描電鏡、動態接觸角分析和單絲拉伸等測試手段表征了雜化增強體的性能。測試結果表明，改性后，POSS和CNTs均勻的接枝在了碳纖維表面，纖維表面粗糙度明顯增加，表面極性官能團含量和表面能提高，而纖維單絲強度并沒有顯著降低。采用單絲拔出測試表征了改性前后復合材料界面性能的變化，結果表明，雜化接枝能夠有效改善碳纖維/環氧樹脂復合材料的界面粘結，使復合材料界面剪切強度提高了105%。碳纖維表面浸潤性的提高、表面粗糙度增加和化學鍵的形成是復合材料界面性能改善的主要原因。
- Abstract:
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A carbon fiber/polyhedral oligomeric silsesquioxane/carbon nanotube (CFPOSSCNT) hybrid reinforcement was prepared by grafting CNTs onto the carbon fiber surface using octaglycidyldimethylsilyl POSS as the linkage in an attempt to improve the interfacial properties between carbon fibers and an epoxy matrix. Xray photoelectron spectroscopy, scanning electron microscopy, dynamic contact angle analysis and single fiber tensile testing were performed to characterize the hybrid reinforcements. Experimental results show that POSS and CNTs are grafted uniformly on the fiber surface and significantly increase the fiber surface roughness. The polar functional groups and surface energy of carbon fibers are obviously increased after the modification. Single fiber tensile testing results demonstrate that the functionalization does not lead to any discernable decrease in the fiber tensile strength. Interfacial shear strength (IFSS) testing was carried out to investigate the interfacial property of the composites. The results indicate the IFSS enhanced by 105%. The main reason of enhancement of the composite interfacial adhesion is improving of fiber surface wettability, increasing of fiber surface roughness and formation of chemical bonding.
更新日期/Last Update:
2013-04-16