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首页> 外文期刊>RSC Advances >Improving interfacial and mechanical properties of glass fabric/polyphenylene sulfide composites via grafting multi-walled carbon nanotubes
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Improving interfacial and mechanical properties of glass fabric/polyphenylene sulfide composites via grafting multi-walled carbon nanotubes

机译:通过移植多壁碳纳米管改善玻璃织物/聚苯硫醚复合材料的界面和力学性能

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摘要

The interfacial strength between reinforced fiber and a polymeric matrix is a critical factor for determining the mechanical properties of composites. Here, grafting multi-walled carbon nanotubes (MWCNTs) onto plain weave glass fabric (PWGF) is introduced to improve the interfacial strength of PWGF reinforced polyphenylene sulfide (PPS) composites. Firstly, MWCNTs-g-PWGF is prepared by grafting oxidized MWCNTs onto functionalized PWGF, and then the MWCNTs-g-PWGF/PPS composite laminates are fabricated by an opening hot pressing process. Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS) confirm that the MWCNTs are successfully grafted onto PWGF by chemical linkage. The interfacial morphologies are characterized by scanning electron microscopy (SEM), which reveals a good interfacial compatibility in MWCNTs-g-PWGF/PPS composites. The mechanical properties of MWCNTs-g-PWGF/PPS composites are also characterized by dynamic mechanical analysis (DMA) and universal tensile or bending testing. According to the results, the present method of manufacturing MWCNTs-g-PWGF/PPS composites produces an increase of almost 126% in tensile strength and a significant enhancement of nearly 155% in the bending strength compared with PWGF/PPS composites. The notable increase in the glass transition temperature of MWCNTs-g-PWGF/PPS composites also reflects the remarkable improvement in interfacial strength of the composites.
机译:增强纤维和聚合物基质之间的界面强度是用于确定复合材料的机械性能的关键因素。这里,引入将多壁碳纳米管(MWCNT)接枝到平纹玻璃织物(PWGF)上,以提高PWGF增强聚苯硫醚(PPS)复合材料的界面强度。首先,通过将氧化的MWCNT接枝到官能化的PWGF上,然后通过开口热压过程制备MWCNT-G-PWGF / PPS复合层压材料来制备MWCNTS-G-PWGF。傅里叶变换红外(FTIR)光谱和X射线光电子能谱(XPS)证实,MWCNT通过化学键成功地接枝到PWGF上。界面形态的特征在于扫描电子显微镜(SEM),其揭示了MWCNTS-G-PWGF / PPS复合材料的良好界面相容性。 MWCNTS-G-PWGF / PPS复合材料的机械性能还表征了动态机械分析(DMA)和通用拉伸或弯曲测试。根据结果​​,本发明的制造MWCNTS-G-PWGF / PPS复合材料的方法产生抗拉强度近126%,与PWGF / PPS复合材料相比,弯曲强度的显着增强近155%。 MWCNTS-G-PWGF / PPS复合材料的玻璃化转变温度的显着增加也反映了复合材料的界面强度的显着提高。

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    《RSC Advances》 |2019年第56期|共10页
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  • 正文语种 eng
  • 中图分类 化学;
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