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Preparation of a Crosslinked Poly(imide-siloxane) for Application to Transistor Insulation. Polymers (Basel) 2022; 14:polym14245392. [PMID: 36559758 PMCID: PMC9782700 DOI: 10.3390/polym14245392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/01/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022] Open
Abstract
Insulated gate bipolar transistor (IGBT) is an important power device for the conversion, control, and transmission of semiconductor power, and is used in various industrial fields. The IGBT module currently uses silicone gel as an insulating layer. Since higher power density and more severe temperature applications have become the trend according to the development of electronic device industry, insulating materials with improved heat resistance and insulation performances should be developed. In this study, we intended to synthesize a new insulating material with enhanced thermal stability and reduced thermal conductivity. Poly(imide-siloxane) (PIS) was prepared and crosslinked through a hydrosilylation reaction to obtain a semi-solid Crosslinked PIS. Thermal decomposition temperature, thermal conductivity, optical transparency, dielectric constant, and rheological property of the Crosslinked PIS were investigated and compared to those of a commercial silicone gel. The Crosslinked PIS showed high thermal stability and low thermal conductivity, along with other desirable properties, and so could be useful as an IGBT-insulating material.
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Ma W, Xu Y, Zeng W, Zhu Z, Liu J. Thermal degradation kinetics of transparent fluorinated poly(imide siloxane) copolymers. HIGH PERFORM POLYM 2020. [DOI: 10.1177/0954008320969777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Fluorinated polyimide films are widely used in the field of flexible display because of their excellent optical transmittance. Based on previous studies, the adhesion to other substrates of fluorinated polyimide films have been improved by incorporating GAPD into the macromolecular chains, but their heat resistance is not yet very clear. In this study, thermal behaviors of fluorinated polyimide films (PIs) with and without GAPD were studied in N2 ambient and atmosphere by TG-DTG analysis under non-isothermal conditions. Activation energies (Eas) of PIs were calculated by Flynn-Wall-Ozawa method, Kissinger-Akahira-Sunose method and Kissinger method. In addition, mechanisms of thermal decomposition reaction were determined by Coats-Redfern method. By comparison, the Eas of PIs in the same atmosphere were similar and the thermal reaction mechanisms were essentially the same, indicating that adhesion of fluorinated polyimide can be improved by adding appropriate amount of GAPD, while the excellent optical permeability and heat resistance of fluorinated polyimide can be maintained, further expanding its application in flexible display and other fields.
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Affiliation(s)
- Wenxiu Ma
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Yong Xu
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Wei Zeng
- Institute of Chemical Engineering, Guangdong Academy of Science, Guang Zhou, China
| | - Zheng Zhu
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Jinghan Liu
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, China
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Janegová K, Sysel P, Kulhánková H, Perfilov VA, Bernauer M, Fíla V. Poly(imide‐siloxane) films with controlled thickness. J Appl Polym Sci 2020. [DOI: 10.1002/app.49893] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Petr Sysel
- Department of Polymers, Faculty of Chemical Technology University of Chemistry and Technology Prague Czech Republic
| | - Hana Kulhánková
- Department of Polymers, Faculty of Chemical Technology University of Chemistry and Technology Prague Czech Republic
| | - Viacheslav A. Perfilov
- Department of Inorganic Technology, Faculty of Chemical Technology University of Chemistry and Technology Prague Czech Republic
| | - Milan Bernauer
- Department of Inorganic Technology, Faculty of Chemical Technology University of Chemistry and Technology Prague Czech Republic
| | - Vlastimil Fíla
- Department of Inorganic Technology, Faculty of Chemical Technology University of Chemistry and Technology Prague Czech Republic
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Ye Q, Yuan Q, Huang F. Preparation and properties of propargyl ether-terminated poly(imide siloxane)s and their composites. HIGH PERFORM POLYM 2020. [DOI: 10.1177/0954008320954523] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The novel propargyl ether-terminated oligo(imide siloxane)s (PTISs) based on 2,2’-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride (6FDA), aminopropyl-terminated polydimethylsiloxane (APPS), 4,4’-diaminodiphenylmethane (MDA) and p-aminophenyl propargyl ether (APPE) were synthesized. The chemical structures of PTISs were characterized by proton nuclear magnetic resonance (1H NMR) and Fourier transform infrared spectroscopy (FTIR). The PTISs exhibited excellent solubility in organic solvent and had broad processing window. The T300 carbon fabric was used to reinforce the PTIS matrices and prepare the composites (T300CF/PTISs). The thermal stability of the cured PTISs was analyzed by thermogravimetric analysis (TGA). The dynamic thermal mechanical properties of the composites were measured by dynamic thermomechanical analysis (DMA). The results show that the temperature at 5% weight loss (Td5) and residual yield at 800°C (Yr800°C) of the cured PTISs in N2 increase with incorporation of the aromatic diamine, whereas the Yr800°C of the cured PTISs in air decreases with introduction of the aromatic diamine. The elasticity of the composite increases with incorporation of the aromatic diamine, and the peak temperature of loss factor for the composites are higher than 300°C. The flexural strength, tensile strength and interlaminar layer shear strength (ILSS) of the T300CF/PTIS composite display the values of 439 MPa, 427 MPa and 32 MPa at room temperature, respectively. The retention of the flexural strength and ILSS for the T300CF/PTIS composite are above 80% at 250°C.
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Affiliation(s)
- Qing Ye
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology (Ministry of Education), School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
| | - Qiaolong Yuan
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology (Ministry of Education), School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
| | - Farong Huang
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology (Ministry of Education), School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
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Sapozhnikov DA, Bayminov BA, Chuchalov AV, Semjonov SL, Kosolapov AF, Zabegaeva ON, Vygodskii YS. Synthesis of Organosoluble Polyimides and Optical Fiber Protective Coatings on Their Basis. POLYMER SCIENCE SERIES B 2020. [DOI: 10.1134/s1560090420010078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Effects of Diamines on the Optical Properties of Poly(ether imide)s Derived from 2,2-Bis[4-(3,4-dicarboxyphenoxy)phenyl]propane Dianhydride (BPADA). Macromol Res 2019. [DOI: 10.1007/s13233-019-7117-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Zhao D, Chen W, Qu C, Liu C, Cui B, Li G, Song J, Li L, Zheng S, Chang J, Tang Y, Shang L, Zhang H. Factors influencing thermal, mechanical, optical, and adhesive properties of segmented poly(imide siloxane) copolymers films. J Appl Polym Sci 2019. [DOI: 10.1002/app.48148] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Daoxiang Zhao
- Institute of Petro chemistryHeilongjiang Academy of Science Harbin China
| | - Weijun Chen
- Institute of Petro chemistryHeilongjiang Academy of Science Harbin China
| | - Chunyan Qu
- Institute of Petro chemistryHeilongjiang Academy of Science Harbin China
| | - Changwei Liu
- Institute of Petro chemistryHeilongjiang Academy of Science Harbin China
| | - Baojun Cui
- Institute of Petro chemistryHeilongjiang Academy of Science Harbin China
| | - Gang Li
- Institute of Petro chemistryHeilongjiang Academy of Science Harbin China
| | - Junjun Song
- Institute of Petro chemistryHeilongjiang Academy of Science Harbin China
| | - Liaoliao Li
- Institute of Petro chemistryHeilongjiang Academy of Science Harbin China
| | - Shuai Zheng
- School of Materials Science and EngineeringHarbin University of Science and Technology Harbin China
| | - Jiaying Chang
- Institute of Petro chemistryHeilongjiang Academy of Science Harbin China
| | - Yao Tang
- Institute of Petro chemistryHeilongjiang Academy of Science Harbin China
| | - Liming Shang
- Institute of Petro chemistryHeilongjiang Academy of Science Harbin China
| | - Haitao Zhang
- Institute of Petro chemistryHeilongjiang Academy of Science Harbin China
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Zhao W, Xu Y, Song C, Chen J, Liu X. Polyimide/mica hybrid films with low coefficient of thermal expansion and low dielectric constant. E-POLYMERS 2019. [DOI: 10.1515/epoly-2019-0019] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractPolyimide (PI)/mica hybrid films were successfully prepared by in situ condensation polymerization method, in which the mica particles were modified by coupling agent γ-aminopropyltriethoxy silane (APTS) to strengthen the interaction between the mica particles and PI matrix. The morphology, structure, thermal and mechanical properties as well as dielectric properties of PI films were systematically studied via Scanning electron microscope (SEM), Fourier transform infrared spectrometer (FT-IR spectrometer), Thermal gravimetric analysis (TGA), tensile experiments, Thermal mechanical analyzer (TMA), impedance analyzer, etc. The results indicated that the mica particles were dispersed homogeneously in PI matrix, leading to an improvement of the mechanical property, thermal stability and hydrophobicity. It was novel to notice that hybrid films exhibited low coefficient of thermal expansion (CTE) and low dielectric constant simultaneously. The CTE and dielectric constant of hybrid film dropped to 25.36 ppm/k and 2.42 respectively, in the presence of 10 wt% mica into polyimide matrix.
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Affiliation(s)
- Wei Zhao
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing210094, China
| | - Yong Xu
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing210094, China
| | - Chaoran Song
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing210094, China
| | - Jian Chen
- Research Centre, Nanjing Zhong hong Running Advanced Material Technology Co., Ltd, Nanjing210094, China
| | - Xiaohong Liu
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing210094, China
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Li L, Xu Y, Che J, Xiaohong L, Zhao W, Ye Z. Preparation and Thermal Degradation of White Fluorinated Polyimide/TiO 2 Composite Films with Strong Shielding Performance. POLYM-PLAST TECH MAT 2019. [DOI: 10.1080/03602559.2018.1466173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Linshuang Li
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Yong Xu
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Jianfei Che
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Liu Xiaohong
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Wei Zhao
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Zhifeng Ye
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, China
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Crosslinked Organosilicon-Acrylate Copolymer Moisture Barrier Thin Film Fabricated by Initiated Chemical Vapor Deposition (iCVD). Macromol Res 2018. [DOI: 10.1007/s13233-019-6149-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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11
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Li L, Xu Y, Che J, Ye Z. Synthesis and optical properties of novel soluble and optically transparent semifluorinated poly (ether imide)s. POLYM ADVAN TECHNOL 2018. [DOI: 10.1002/pat.4450] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Linshuang Li
- School of Chemical Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
| | - Yong Xu
- School of Chemical Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
| | - Jianfei Che
- School of Chemical Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
| | - Zhifeng Ye
- School of Chemical Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
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