Synthesis and Characterization of SiC@SiO2/BN/PI Composites by in-situ Polymerization

doi:10.15541/jim20200360

Abstract

Abstract:

Polyimide composites have attracted more and more attention due to their excellent properties and wide application prospects in aerospace, rail transit, microelectronics and other fields. SiC@SiO₂ whisker was prepared by oxidation of SiC whisker at 750 ℃, which formed mixed fillers with BN particles. The SiC@SiO₂ whisker and BN were modified by a silane coupling agent and a titanate coupling agent, respectively. SiC@SiO₂/BN/PI composites were prepared by in-situ polymerization. The structure and property of the fillers and composites were characterized. Whiskers and particles formed an effective pathway in the polyimide matrix, which promoted continuous improvement of the thermal conductivity of SiC@SiO₂/BN/PI composites. When the total filler content was 45wt% and the mass ratio of whiskers to particles was 4 : 1, the thermal conductivity was increased to 0.95 W/(m·K). Mechanical properties of SiC@SiO₂/BN/PI composites changed regularly with the type and amount of mixed fillers. The SiO₂ layer blocks the communication of free electrons between the mixed fillers, and the decreasing range of electrical insulation performance of the SiC@SiO₂/BN/PI composites declined.

Key words: polyimide, mixed filler, thermal conductivity, electric insulation property

CLC Number:

TQ170
TB34

GAO Jiming, YANG Yang, LEI Ting, WANG Jin, LIU Jie, ZHANG Limin. Synthesis and Characterization of SiC@SiO₂/BN/PI Composites by in-situ Polymerization[J]. Journal of Inorganic Materials, 2021, 36(1): 36-42.

Figures/Tables 8

Fig. 1 XRD patterns of the SiC whiskers oxidized at different temperatures for different time

Fig. 2 TEM images of SiC whiskers oxidized at 750 ℃ for (a) 30, (b) 60 and (c) 90 min, and (d) 800 ℃ for 60 min

Fig. 3 FT-IR spectra of (a) BN and modified-BN; (b) SiC@SiO2 and modified-SiC@SiO2

Fig. 4 SEM images of fracture surfaces of SiC@SiO2/BN/PI composites with 20wt% mixed fillers m(BN):m(SiC@SiO2) (a) 5 : 0; (b) 4 : 1; (c) 3 : 2; (d) 2 : 3; (e) 1 : 4; (f) 0 : 5

Fig. 5 Thermal conductivity of composites with different weight ratio of BN flakes to SiC@SiO2 whiskers at filler content of 20wt%

Fig. 6 Thermal conductivity of composites with different filler contents when the weight ratio of BN to SiC@SiO2 is 1 : 4.

Fig. 7 Mechanical properties of SiC@SiO2/BN/PI composites (a) Different weight ratios of BN to SiC@SiO2 at filler content of 20wt%; (b) Different filler contents when the weight ratio of BN to SiC@SiO2 is 1 : 4.

Fig. 8 Surface resistivities and volume resistivities of the SiC@SiO2/BN/PI composites (a) Different weight ratios of BN to SiC@SiO2 at filler content of 20wt %; (b) Different filler contents when the weight ratio of BN to SiC@SiO2 is 1 : 4.

References 22

[1]	LIAW D J, WANG K L, HUANG Y C , et al. Advanced polyimide materials: syntheses, physical properties and applications. Prog Polym. Sci., 2012,37(7):907-974.
[2]	丁孟贤. 聚酰亚胺: 单体合成、聚合方法及材料制备. 北京: 科学出版社, 2011: 1-983.
[3]	丁孟贤. 聚酰亚胺: 化学、结构与性能的关系及材料, 2版. 北京:科学出版社, 2012: 1-913.
[4]	ZHANG Y, HEO Y J, SON Y R , et al. Recent advanced thermal interfacial materials: a review of conducting mechanisms and parameters of carbon materials. Carbon, 2019,142:445-460.
[5]	GUO Y Q, LYU Z Y, YANG X T , et al. Enhanced thermal conductivities and decreased thermal resistances of functionalized boron nitride/polyimide composites. Compos. B. Eng., 2019,164:732-739.
[6]	WANG H T, DING D L, LIU Q ,et al. Highly anisotropic thermally conductive polyimide composites. via the alignment of boron nitride platelets Compos. B. Eng., 2019,158:311-318.
[7]	YANG Y, ZHANG X, LEI Y , et al. Corona Resistance Improvement of Polyimide Films by Non-Thermal Plasma Modification. 2018 IEEE International Conference on High Voltage Engineering and Application. 2018.
[8]	MA X, LIU L, HE H ,et al. Effects of interface bonding on the corona resistance of the polyimide/nano-Al₂O₃ three-layer composite films. High Performance Polymers, 2018,30(10):1240-1246.
[9]	YU B, LI R, SU J , , et al. Insulation improvement of an all-solid pulse forming line with film dielectric. Review of Scientific Instruments, 2019, 90(10): 104705-1-8.
[10]	LI X, XU J L, JIANG Y D , , et al. Toward agricultural ammonia volatilization monitoring: a flexible polyaniline/Ti₃C₂T_x hybrid sensitive films based gas sensor. Sens. Actuators B-Chem., 2020,316: 128144-1-11.
[11]	LI J W, DING Y Q, GAO Q , , et al. Ultrathin. Ultrathin and flexible biomass- derived C@CoFe nanocomposite films for efficient electromagnetic interference shielding. Compos. B. Eng., 2020, 190: 107935-1-9.
[12]	YUAN R, JU P, WU Y ,et al. Silane-grafted graphene oxide improves wear and corrosion resistance of polyimide matrix: molecular dynamics simulation and experimental analysis. Journal of Materials Science, 2019,54(27):11069-11083.
[13]	TIPTIPAKORN S, KUENGPUTPONG N, OKHAWILAI M , , et al. Improvement of polyimide/polysulfone composites filled with conductive carbon black as positive temperature coefficient materials. J. Appl. Polym. Sci., 2019,173(12): 48482-1-9.
[14]	WOZNIAK A I, IVANOV V S, KOSOVA O V ,et al. Thermal properties of polyimide composites with nanostructured silicon carbide. Orient J. Chem., 2016,32(6):2967-2974.
[15]	LI L G, LOTFI S, VALLIN O ,et al. Thermal Characterization of Polycrystalline SiC. J Electron. Mater., 2014,43(4):1150-1153.
[16]	CHENG Y L, WU X Q, WU F ,et al. The influence of electric parameters, KF and SiC nano particles on the properties of the micro-arc oxidation films of ZK60 magnesium alloy. Journal of Hunan University 2012,39(10):60-66.
[17]	MUN S Y, CHO K Y, LEE D ,et al. Thermal and electrical properties of SiO₂/SiC-epoxy composite by surface oxidation of silicon carbide. Thermochim Acta, 2017,654:70-73.
[18]	BOSE S, MUKHERJEE M, PAL K ,et al. Development of core- shell structure aided by SiC-coated MWNT in ABS/LCP blend. Polym Adv. Technol., 2010,21(4):272-278.
[19]	CAO J P, ZHAO J, ZHAO X D ,et al. Preparation and characterization of surface modified silicon carbide/polystyrene nanocomposites. J Appl. Polym. Sci., 2013,130(1):638-644.
[20]	LEWIS T B, NIELSEN L E . Dynamic mechanical properties of particulate-filled composites. J. Appl. Polym. Sci., 1970,14(6):1449-1471.
[21]	YANG Y, GAO J, LEI T ,et al. Thermal conductivity and mechanical properties of polyimide composites with mixed fillers of BN flakes and SiC@SiO₂ whiskers. Polym. Eng. Sci., 2020,60(5):1044-1053.
[22]	LEUNG S N . Thermally conductive polymer composites and nanocomposites: processing-structure-property relationships. Compos. B. Eng., 2018,150:78-92.

Synthesis and Characterization of SiC@SiO₂/BN/PI Composites by in-situ Polymerization

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