Comparative study on shape memory, mechanical, and thermomechanical properties of multi-walled carbon nanotubes and graphene nanoplatelets modified bidirectional (twill) carbon fiber polymer composites

IF 2.7 3区 化学 Q2 POLYMER SCIENCE Journal of Applied Polymer Science Pub Date : 2024-09-13 DOI:10.1002/app.56233
Ritesh Gupta, Gaurav Mittal, Gajendra Kumar Nhaichaniya, Krishna Kumar, Upender Pandel
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Abstract

The research conducts a comparative analysis of epoxy/bi-directional (twill) carbon fiber three-phase shape memory hybrid composites modified with MWCNT and GnP, examining their mechanical, thermomechanical, and shape memory properties. Fabrication involves preparing nanoparticle-modified epoxy nanocomposites through ultrasonication followed by hand layup technique. The findings revealed that the modified composites achieved their optimal performance at a 0.6 wt% concentration of nanoparticle, with the tensile strength and modulus increasing by 33.59% and 23.47% for 0.6 wt% MWCNT composite and by 45.94% and 25.61% for 0.6 wt% GnP composite. GnP-modified composites outperformed MWCNT ones due to GnP's sheet structure aligning parallel to the load and larger surface area facilitating enhanced interaction with the matrix. Despite polymer modification, the shape recovery ratio values remained high, with 98.92% for unmodified composite, 97.72% for 0.6 wt% MWCNT composites, and 97.12% for 0.6 wt% GnP modified composites, all exceeding 90%, indicating no compromise in performance.

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多壁碳纳米管和石墨烯纳米片改性双向(斜纹)碳纤维聚合物复合材料的形状记忆、力学和热力学性能比较研究
该研究对用 MWCNT 和 GnP 改性的环氧树脂/双向(斜纹)碳纤维三相形状记忆混合复合材料进行了比较分析,考察了它们的机械、热机械和形状记忆性能。制备方法包括通过超声波处理和手糊技术制备纳米粒子改性环氧纳米复合材料。研究结果表明,纳米粒子浓度为 0.6 wt%时,改性复合材料的性能达到最佳,0.6 wt% MWCNT 复合材料的拉伸强度和模量分别提高了 33.59% 和 23.47%,0.6 wt% GnP 复合材料的拉伸强度和模量分别提高了 45.94% 和 25.61%。GnP 改性复合材料的性能优于 MWCNT 复合材料,这是因为 GnP 的片状结构与载荷平行排列,且表面积更大,有利于增强与基体的相互作用。尽管进行了聚合物改性,但形状恢复比值仍然很高,未改性复合材料的形状恢复比为 98.92%,0.6 wt% MWCNT 复合材料的形状恢复比为 97.72%,0.6 wt% GnP 改性复合材料的形状恢复比为 97.12%,均超过了 90%,表明性能没有受到影响。
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来源期刊
Journal of Applied Polymer Science
Journal of Applied Polymer Science 化学-高分子科学
CiteScore
5.70
自引率
10.00%
发文量
1280
审稿时长
2.7 months
期刊介绍: The Journal of Applied Polymer Science is the largest peer-reviewed publication in polymers, #3 by total citations, and features results with real-world impact on membranes, polysaccharides, and much more.
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