Preparation and Performance Study of Nano-Ti-MWCNT Hybrid Filler Reinforced Epoxy Resin Composite Coating

编号 020036202

推送时间 20220926

研究领域 林产化工 

年份 2022 

类型 期刊 

语种 英语

标题 Preparation and Performance Study of Nano-Ti-MWCNT Hybrid Filler Reinforced Epoxy Resin Composite Coating

来源期刊 Fibers and Polymers

期 第362期

发表时间 20220910

关键词 Epoxy resin;  Composite coating;  Hardness;  Fracture toughness;  Tribological properties; 

摘要 To improve the wear resistance of friction components coated with epoxy resin, a titanium-multi-walled carbon nanotubes (Ti-MWCNT) reinforced epoxy resin composite coating was designed and prepared by combining metal nanoparticles and inorganic nanoparticles into a hybrid filler using Ti nanoparticles and MWCNT as raw materials. The changes in functional groups of pure resin and Ti-MWCNT reinforced epoxy resin composites were analyzed using infrared spectroscopy. The hardness, fracture toughness and tribological properties of pure resin and Ti-MWCNT-reinforced epoxy resin composite coatings with different contents of Ti-MWCNT filler (0, 2 wt.%, 4 wt.%, 6 wt.%, 8 wt.%) were determined experimentally. The fracture and wear mechanisms of Ti-MWCNT-reinforced epoxy resin composites were also revealed with the aid of scanning electron microscopy. The results showed that the bonding form of Ti-MWCNT hybrid filler and epoxy resin was physical bonding. The addition of appropriate amount of Ti-MWCNT hybrid filler effectively improved the hardness, fracture toughness and tribological properties of epoxy resin. When 6 wt.% Ti-MWCNT hybrid filler was added, the optimum composite was obtained with hardness and fracture toughness of 676 HL and 0.922 MPa center dot m(1/2), and friction coefficient and wear rate of 0.347 and 4.71x10(-13) m(3)(N center dot m)(-1), respectively. However, the performance of the composite coating gradually decreased when the filler content was increased to 8 wt.%. In summary, the addition of appropriate amount of Ti-MWCNT hybrid filler can effectively improve the hardness, fracture toughness and tribological properties of epoxy resin. Ti nanoparticles react chemically with oxygen and effectively fill the microcracks generated in the resin matrix. The MWCNT filler limits the movement of the surrounding resin matrix due to the difference in size and prolongs the diffusion path of the microcracks in the resin matrix. The interaction between the two filler components significantly improves the performance of the composite coating.

服务人员 尚玮姣

服务院士 宋湛谦

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