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Research on Preparation of Nano ZnO-RTV Composite Material and Its Ultraviolet Resistance
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Shoukang LUO1, Congzhen XIE1, Rui WANG1, Licheng LI1, Jie YANG2
Insulating Materials | 2021, 54(12) : 38 - 47
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Insulating Materials | 2021, 54(12): 38-47
• Material Research •
Research on Preparation of Nano ZnO-RTV Composite Material and Its Ultraviolet Resistance
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Shoukang LUO1, Congzhen XIE1, Rui WANG1, Licheng LI1, Jie YANG2
Affiliations
  • 1South China University of Technology, Guangzhou 510641, China
  • 2Electric Power Test Research Institute of Guangzhou Power Supply Burecus, Guangdong Power Grid Co., Ltd., Guangzhou 510410, China
Published: 2021-12-20 doi: 10.16790/j.cnki.1009-9239.im.2021.12.007
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To improve the UV resistance of room temperature vulcanized silicone rubber (RTV), we used titanate coupling agent (PN) to modify nano zinc oxide (ZnO), and then nano ZnO-RTV composites were prepared by doping different mass fraction of modified nano ZnO into RTV. The ultraviolet accelerated ageing experiments were conducted on pure RTV and nano ZnO-RTV composites, and the effect of nano ZnO on the ultraviolet resistance of RTV was compared and analyzed. The results show that nano ZnO can effectively improve the UV shielding performance of RTV, and the UV shielding rate of nano ZnO-RTV composite with 1.0% of ZnO can increase by 72.63%; after adding nano ZnO, the electrical strength of RTV is slightly improved. After UV ageing for 2 500 hours, the decreasing amplitude of static con-tact angle and the ageing degree which reflected by surface micro-morphology of pure RTV are far greater than that of nano ZnO-RTV composite, it is verified by the changes of Si-(CH3)2, Si-CH3, and C=O of RTV molecular chains before and after ageing. At the same time, after UV ageing for 2500 hours, the thermal stability of nano ZnO-RTV composite is significantly better than that of pure RTV.

nano ZnO  /  RTV  /  nano composites  /  ultraviolet resistance
Shoukang LUO, Congzhen XIE, Rui WANG, Licheng LI, Jie YANG. Research on Preparation of Nano ZnO-RTV Composite Material and Its Ultraviolet Resistance[J]. Insulating Materials, 2021 , 54 (12) : 38 -47 . DOI: 10.16790/j.cnki.1009-9239.im.2021.12.007
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doi: 10.16790/j.cnki.1009-9239.im.2021.12.007
  • Receive Date：2021-02-01
  • Online Date：2026-03-23
  • Published：2021-12-20
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  • Received：2021-02-01
  • Revised：2021-02-23
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Affiliations
    1South China University of Technology, Guangzhou 510641, China
    2Electric Power Test Research Institute of Guangzhou Power Supply Burecus, Guangdong Power Grid Co., Ltd., Guangzhou 510410, China
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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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