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Preparation and Properties of Intrinsically Deep-color Thermoplastic Polyimide Films with Low Curing Temperatures
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Yaoyao TAN, Yuancheng AN, Yanjiang JIA, Lin WU, Yan ZHANG, Xinxin ZHI, Jingang LIU
Insulating Materials | 2021, 54(11) : 75 - 83
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Insulating Materials | 2021, 54(11): 75-83
• Polyimide Film Special Issue •
Preparation and Properties of Intrinsically Deep-color Thermoplastic Polyimide Films with Low Curing Temperatures
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Yaoyao TAN, Yuancheng AN, Yanjiang JIA, Lin WU, Yan ZHANG, Xinxin ZHI, Jingang LIU
Affiliations
  • School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
Published: 2021-11-22 doi: 10.16790/j.cnki.1009-9239.im.2021.11.010
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According to the application requirements of thermoplastic black polyimide film in the field of advanced flexible copper clad laminate (FCCL), three organo-soluble polyimide (SPI) resins were prepared from an aromatic diamine monomer containing chromogenic imine (-NH-) group, 4,4′-diaminodiphenylamine (NDA) and various dianhydrides, including 4,4′-(hexafluoroisopropylidene)diphthalic anhydride (6FDA), 2,2-bis[4-(3,4-dicarboxyphenoxy)phenyl]propane dianhydride (BPADA), and hydrogenated 3,3′,4,4′- biphenyltetracarboxylic dianhydride (HBPDA) by polymerization. Then PI films were prepared from SPI/DMAc solution at relatively low temperature (80-250℃), and the effects of the above characteristic groups on the optical properties, thermal properties, and electrical properties of PI films were studied systematically. The results show that the SPI resin has good solubility in polar aprotic solvents such as N-methylpyrrolidone (NMP) and N,N-dimethylacetamide (DMAc). The SPI films show intrinsically deep color, the transmittance value at 550 nm of wavelength (T500) is lower than 5%, and the lightness (L*) is below 60. The PI films have good thermal stabilities, the glass transition temperatures (Tg) is up to 375.9℃ and the 5% weight loss temperatures (T5%) is over 500℃ in nitrogen. Besides, the PI films exhibit good electrical insulating properties, the volume resistivities (ρv) is higher than 1015 Ω·cm.

flexible copper clad laminate  /  black polyimide film  /  optical properties  /  thermal properties  /  insulating properties
Yaoyao TAN, Yuancheng AN, Yanjiang JIA, Lin WU, Yan ZHANG, Xinxin ZHI, Jingang LIU. Preparation and Properties of Intrinsically Deep-color Thermoplastic Polyimide Films with Low Curing Temperatures[J]. Insulating Materials, 2021 , 54 (11) : 75 -83 . DOI: 10.16790/j.cnki.1009-9239.im.2021.11.010
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2021.11.010
  • Receive Date：2021-04-19
  • Online Date：2026-03-23
  • Published：2021-11-22
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  • Received：2021-04-19
  • Revised：2021-06-01
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    School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2021.11.010
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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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