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Preparation and properties study of dendritic silica/epoxy resin nanocomposites
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Xiaobing Luo1, Jiang Zhou2, *, Zhendong Liu1, Feiyuan Deng1, Guiquan Li1, Zhihui Xie2, Jin Zhou2, Huanqin Peng2
Insulating Materials | 2026, 59(7) : 49 - 55
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Insulating Materials | 2026, 59(7): 49-55
• Material Research •
Preparation and properties study of dendritic silica/epoxy resin nanocomposites
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Xiaobing Luo1, Jiang Zhou2, *, Zhendong Liu1, Feiyuan Deng1, Guiquan Li1, Zhihui Xie2, Jin Zhou2, Huanqin Peng2
Affiliations
  • 1Xizang Datang Zala Hydropower Development Co., Ltd., Cangdu 854413, China
  • 2Dongfang Electric Machinery Co., Ltd., Deyang 618000, China
Published: 2026-07-20 doi: 10.16790/j.cnki.1009-9239.im.2026.07.006
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To prepare epoxy resin-based composites with excellent comprehensive properties, this study synthesized dendritic nanosilica (DSiO2) via a dual-template method and applied them to modify epoxy resin (EP). The relationship between structure and property of the composites was investigated by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and nitrogen adsorption-desorption tests. The results indicate that after modification with the silane coupling agent Z-6040, DSiO2 exhibits excellent dispersibility in epoxy resin. As the mass fraction of DSiO2 increases from 0 to 0.9%, the onset curing temperature of the composite decreases from 160.7℃ to 111.3, and the peak temperature decreases from 196.3℃ to 159.6℃; the tensile strength increases from 24.2 MPa to 53.6 MPa, the elongation at break increases from 10.5% to 13.5%, and the Rockwell hardness increases from 85.1 to 91.5. Compared with the unmodified EP, the DSiO2/EP composites exhibit significantly increased storage modulus, a glass transition temperature (Tg) that shifts toward higher temperature, and enhanced thermal stability.

epoxy resin  /  silica  /  dendritic pore structure  /  mechanical properties
Xiaobing Luo, Jiang Zhou, Zhendong Liu, Feiyuan Deng, Guiquan Li, Zhihui Xie, Jin Zhou, Huanqin Peng. Preparation and properties study of dendritic silica/epoxy resin nanocomposites[J]. Insulating Materials, 2026 , 59 (7) : 49 -55 . DOI: 10.16790/j.cnki.1009-9239.im.2026.07.006
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doi: 10.16790/j.cnki.1009-9239.im.2026.07.006
  • Receive Date：2025-08-14
  • Online Date：2026-09-10
  • Published：2026-07-20
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  • Received：2025-08-14
  • Revised：2025-09-29
Affiliations
    1Xizang Datang Zala Hydropower Development Co., Ltd., Cangdu 854413, China
    2Dongfang Electric Machinery Co., Ltd., Deyang 618000, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2026.07.006
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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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