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Synthesis and application research of high phosphorus content epoxy resin with low dielectric loss
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Jing ZOU1, Qin ZHANG2, Meng WU3, Kai YUAN3, You ZHOU1, 3, Anbin TANG1
Insulating Materials | 2024, 57(6) : 43 - 48
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Insulating Materials | 2024, 57(6): 43-48
• Material Research •
Synthesis and application research of high phosphorus content epoxy resin with low dielectric loss
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Jing ZOU1, Qin ZHANG2, Meng WU3, Kai YUAN3, You ZHOU1, 3, Anbin TANG1
Affiliations
  • 1National Insulating Material Engineering Research Center, Sichuan EM Technology Co., Ltd., Mianyang 621000, China
  • 2Daying Ecological Environment Monitoring Station, Suining 629399, China
  • 3EMT Chengdu New Material Technology Co., Ltd., Chengdu 610000, China
Published: 2024-06-20 doi: 10.16790/j.cnki.1009-9239.im.2024.06.007
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A high phosphorus content epoxy resin (DPOEP) was synthesized by using 2,5-dihydroxybenzyl(diphenyl)phosphine oxide (DPOHQ) and epichlorohydrin (ECH) as reactants, and then the structure of DPOEP was characterized by Fourier-transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR). The curing reaction characteristics of DPOEP with the curing agent of active ester resin DFE617 was studied, and the effects of DPOEP content and phosphorus-containing epoxy resin structure on the flame-retardant performance, dielectric properties, and thermal stability of dicyclopentadiene (DCPD) epoxy resin curing system were investigated. The results show that the curing process of DPOEP/DFE617 system follows a first-order reaction. DPOEP can promote the carbonization of condensed phase in the DCPD epoxy resin/DFE617 system, and the limiting oxygen index of cured resin reaches 36.6%-38%, achieving V-0 rating in the UL94 test. The dielectric loss factor of the epoxy resin curing system decreases with the increase of DPOEP content. At a lower content of DPOEP, the epoxy resin cured material is halogen-free and flame retardant while maintaining good thermal properties.

high phosphorus epoxy resin  /  curing kinetics  /  dielectric properties  /  flame retardancy  /  thermal properties
Jing ZOU, Qin ZHANG, Meng WU, Kai YUAN, You ZHOU, Anbin TANG. Synthesis and application research of high phosphorus content epoxy resin with low dielectric loss[J]. Insulating Materials, 2024 , 57 (6) : 43 -48 . DOI: 10.16790/j.cnki.1009-9239.im.2024.06.007
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doi: 10.16790/j.cnki.1009-9239.im.2024.06.007
  • Receive Date：2023-05-13
  • Online Date：2025-12-22
  • Published：2024-06-20
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History
  • Received：2023-05-13
  • Revised：2023-08-08
Funding
Affiliations
    1National Insulating Material Engineering Research Center, Sichuan EM Technology Co., Ltd., Mianyang 621000, China
    2Daying Ecological Environment Monitoring Station, Suining 629399, China
    3EMT Chengdu New Material Technology Co., Ltd., Chengdu 610000, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2024.06.007
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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
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Genus		 种数
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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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