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Preparation and Properties of Carbon Nanotubes Grafted by PVP Under Fenton Reagent and Its EP Composites
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Sheng DING1, Junfeng CHENG2, Chunlin LIU2
Insulating Materials | 2022, 55(9) : 16 - 22
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Insulating Materials | 2022, 55(9): 16-22
• Material Research •
Preparation and Properties of Carbon Nanotubes Grafted by PVP Under Fenton Reagent and Its EP Composites
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Sheng DING1, Junfeng CHENG2, Chunlin LIU2
Affiliations
  • 1Changzhou University Huaide College, Jingjiang 214500, China
  • 2School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China
Published: 2022-09-20 doi: 10.16790/j.cnki.1009-9239.im.2022.09.003
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In order to improve the dispersion of carbon nanotubes (CNTs) in epoxy resin (EP) nanocomposites and the interface interaction between them, so as to prepare EP nanocomposites with excellent comprehensive properties, polyvinyl pyrrolidone (PVP) molecular chains were grafted to the surface of CNTs by covalent bonding under the action of Fenton reagent, and the dispersion of modified CNTs in ethanol and acetone was studied. Then the modified CNTs were compounded with EP to prepare nanocomposites, and their comprehensive properties were studied. The results show that the traditional physical coating modification of CNTs by PVP can be changed into chemical modification with covalent bond through the HO∙ with strong oxidation decomposed by Fenton reagent, and hydroxylation modification can be realized, which improves the grafting rate of PVP. After modification, the CNTs have good dispersion in ethanol and acetone. There is a strong interface interaction between the modified CNTs and EP, which can improve the mechanical properties of EP obviously. When the mass fraction of modified CNTs is 0.25%, the impact strength and flexural strength of the nanocomposites increase by 58.6% and 5.2%, respectively.

carbon nanotubes  /  Fenton reagent  /  PVP grafting  /  dispersion  /  nanocomposites
Sheng DING, Junfeng CHENG, Chunlin LIU. Preparation and Properties of Carbon Nanotubes Grafted by PVP Under Fenton Reagent and Its EP Composites[J]. Insulating Materials, 2022 , 55 (9) : 16 -22 . DOI: 10.16790/j.cnki.1009-9239.im.2022.09.003
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doi: 10.16790/j.cnki.1009-9239.im.2022.09.003
  • Receive Date：2021-08-12
  • Online Date：2025-12-23
  • Published：2022-09-20
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  • Received：2021-08-12
  • Revised：2021-10-19
Affiliations
    1Changzhou University Huaide College, Jingjiang 214500, China
    2School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2022.09.003
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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