Article(id=1242756976099311924, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1242756974576775191, articleNumber=null, orderNo=null, doi=10.16790/j.cnki.1009-9239.im.2021.11.014, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1607443200000, receivedDateStr=2020-12-09, revisedDate=1617724800000, revisedDateStr=2021-04-07, acceptedDate=null, acceptedDateStr=null, onlineDate=1774225952410, onlineDateStr=2026-03-23, pubDate=1637510400000, pubDateStr=2021-11-22, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1774225952410, onlineIssueDateStr=2026-03-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774225952410, creator=13701087609, updateTime=1774225952410, updator=13701087609, issue=Issue{id=1242756974576775191, tenantId=1146029695717560320, journalId=1149653034449285133, year='2021', volume='54', issue='11', pageStart='1', pageEnd='139', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1774225952044, creator=13701087609, updateTime=1774226047274, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1242757374059066044, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1242756974576775191, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1242757374059066045, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1242756974576775191, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=100, endPage=107, ext={EN=ArticleExt(id=1242756976497770806, articleId=1242756976099311924, tenantId=1146029695717560320, journalId=1149653034449285133, language=EN, title=Preparation and Properties of Polyimide Films Modified with Colloidal Silica Fillers, columnId=1198664996516360309, journalTitle=Insulating Materials, columnName=Polyimide Film Special Issue, runingTitle=null, highlight=null, articleAbstract=
At First, a poly(amic acid) (PAA) based on pyromellitic dianhydride (PMDA) and 4,4′-oxydianiline (ODA) was prepared by polycondensation procedure, and the PAA/SiO2 composite solutions were obtained by adding different mass fraction of colloidal SiO2/N,N-dimethylacetamide (DMAc) during the polymerization. Then a series of PI/SiO2 composite films were prepared by thermal imidization of the PAA/SiO2 composite solutions in a clean oven from room temperature to 350℃ in nitrogen. The PI composite films were characterized by the attenuated total reflectance Fourier transform infrared (ATR-FTIR), scanning electron microscopy (SEM), thermal-gravimetric analysis (TGA), dynamic mechanical analysis (DMA), and thermo-mechanical analysis (TMA), and the effect of SiO2 on the dielectric properties of composite film was tested by the impedance analysis measurement. The results show that the composite films with expected structure are prepared, and the SiO2 disperses in PI matrix uniformly. The incorporation of SiO2 improves the heat resistance and dimensional stability at high temperature of the PI composite films. The 5% weight loss temperature (T5%) and 750℃ residual weight ratio (Rw750) of the PI-25 film with 25% of SiO2 are 611.3℃ and 73.1%, respectively, which are 14.7℃ and 9.2% higher than those of the PI-0 film (without silica). The PI composite films exhibit stable dielectric constant (Dk) and dielectric loss factor (Df) in the frequency range of 103-106 Hz. The incorporation of nano-silica slightly increases the Dk of composite films, and the Dk of the PI-25 film at 1 MHz is 3.58, which is a bit higher than that of the PI-0 film (Dk is 3.20).
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首先,通过缩聚法制备了基于均苯四甲酸二酐(PMDA)与4,4′-二氨基二苯醚(ODA)单体的聚酰胺酸(PAA),在聚合过程中加入不同质量分数的胶体SiO2/N,N-二甲基乙酰胺(DMAc),制得PAA/SiO2杂化胶液。然后将杂化胶液在洁净干燥箱中于室温~350℃进行亚胺化,制得了PI/SiO2复合薄膜。对PI/SiO2复合薄膜进行衰减全反射傅里叶红外光谱(ATR-FTIR)、扫描电子显微镜(SEM)、热重分析(TGA)、动态机械分析(DMA)和热机械分析(TMA)测试,并采用阻抗分析法测试SiO2的引入对复合薄膜介电性能的影响。结果表明:成功制得了预期结构的复合薄膜,SiO2在PI基体中分布较为均匀。SiO2的引入提高了复合薄膜的耐热性和热尺寸稳定性,SiO2含量为25%的PI-25薄膜5%失重温度(T5%)和750℃时的残余质量分数分别为611℃与73%,分别较PI-0薄膜(未添加SiO2)提高了14.7℃和9.2%。在103~106 Hz频率范围内,复合薄膜表现出较为稳定的介电常数(Dk)与介质损耗因数(Df)。纳米SiO2的引入略微提高了复合薄膜的Dk值,PI-25薄膜在1 MHz时的Dk值为3.58,较PI-0薄膜略有上升(Dk为3.20)。
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刘金刚(1973-),男(汉族),内蒙古赤峰人,教授,主要从事电工与电子绝缘用聚合物材料的基础与应用研究。
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贾延江(1996-),男(汉族),山东德州人,硕士生,主要从事低介电聚酰亚胺材料研究工作。
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1中国地质大学(北京)材料科学与工程学院,北京 100083, bio={"content":"
贾延江(1996-),男(汉族),山东德州人,硕士生,主要从事低介电聚酰亚胺材料研究工作。
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贾延江(1996-),男(汉族),山东德州人,硕士生,主要从事低介电聚酰亚胺材料研究工作。
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1中国地质大学(北京)材料科学与工程学院,北京 100083)])]), Author(id=1245100049403854909, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1245100049508712515, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, authorId=1245100049403854909, language=EN, stringName=Xinxin ZHI, firstName=Xinxin, middleName=null, lastName=ZHI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1245100049961697379, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, authorId=1245100049726816340, language=CN, stringName=张秀敏, firstName=秀敏, middleName=null, lastName=张, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2北京交通大学 电气工程学院, 北京 100044, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1245100048380445677, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, xref=2, ext=[AuthorCompanyExt(id=1245100048388834287, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, companyId=1245100048380445677, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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6:209-214., articleTitle=Action of colloidal silica films on different nano-composites, refAbstract=null), Reference(id=1245100057775686168, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, doi=null, pmid=null, pmcid=null, year=2015, volume=123, issue=10, pageStart=937, pageEnd=941, url=null, language=null, rfNumber=[28], rfOrder=27, authorNames=ZHANG L L, ZHANG J H, CHEN X L, journalName=Journal of the Ceramic Society of Japan, refType=null, unstructuredReference=
ZHANG L L,
ZHANG J H,
CHEN X L,
et al. Modified silica ceramic for frequency selective surface radome[J].
Journal of the Ceramic Society of Japan,
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123(10):937-941., articleTitle=Modified silica ceramic for frequency selective surface radome, refAbstract=null)], funds=[Fund(id=1245100054705455514, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, awardId=JSGG20210629144539012, language=CN, fundingSource=深圳市科技计划项目(JSGG20210629144539012), fundOrder=null, country=null), Fund(id=1245100054822896032, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, awardId=2019JZZY020235, language=CN, fundingSource=山东省重点研发计划重大科技创新工程项目(2019JZZY020235), fundOrder=null, country=null), Fund(id=1245100054919365027, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, awardId=17ZR1411800, language=CN, fundingSource=上海市自然科学基金项目(17ZR1411800), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1245100048288170979, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, xref=1, ext=[AuthorCompanyExt(id=1245100048296559588, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, companyId=1245100048288170979, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1中国地质大学(北京)材料科学与工程学院,北京 100083)]), AuthorCompany(id=1245100048380445677, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, xref=2, ext=[AuthorCompanyExt(id=1245100048388834287, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, companyId=1245100048380445677, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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TEM images of colloidal SiO2 in different dispersion liquid, figureFileSmall=ouUUubSTFlAlU/QkVPQWGg==, figureFileBig=0XzJ8v3owe/qkscuTPelqA==, tableContent=null), ArticleFig(id=1245100052079821059, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=CN, label=图1, caption=
胶体SiO2在不同分散液中的TEM图, figureFileSmall=ouUUubSTFlAlU/QkVPQWGg==, figureFileBig=0XzJ8v3owe/qkscuTPelqA==, tableContent=null), ArticleFig(id=1245100052251787533, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=EN, label=Fig.2, caption=
Preparation reaction of PI/SiO2 composite films, figureFileSmall=toAY6EDO4rDRrNW5jS5GAQ==, figureFileBig=nYTEeTgKmxJcCvAXLWUPSw==, tableContent=null), ArticleFig(id=1245100052356645139, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=CN, label=图2, caption=
PI/SiO2复合薄膜的制备反应式, figureFileSmall=toAY6EDO4rDRrNW5jS5GAQ==, figureFileBig=nYTEeTgKmxJcCvAXLWUPSw==, tableContent=null), ArticleFig(id=1245100052474085658, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=EN, label=Fig.3, caption=
ATR-FTIR curves of PI films, figureFileSmall=sdcWNC7SwP7FkCSYGa7Vrg==, figureFileBig=StzfrI1CpJ+a0u+Ko5kGTw==, tableContent=null), ArticleFig(id=1245100052687995169, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=CN, label=图3, caption=
PI薄膜的ATR-FTIR曲线, figureFileSmall=sdcWNC7SwP7FkCSYGa7Vrg==, figureFileBig=StzfrI1CpJ+a0u+Ko5kGTw==, tableContent=null), ArticleFig(id=1245100052788658475, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=EN, label=Fig.4, caption=
SEM and EDS images of PI films, figureFileSmall=qco5OO8k59SZzYXOvMA0vQ==, figureFileBig=hQJqcgZnSj2r4C9UQDPNVw==, tableContent=null), ArticleFig(id=1245100052897710387, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=CN, label=图4, caption=
PI薄膜的SEM与EDS图, figureFileSmall=qco5OO8k59SZzYXOvMA0vQ==, figureFileBig=hQJqcgZnSj2r4C9UQDPNVw==, tableContent=null), ArticleFig(id=1245100053010956602, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=EN, label=Fig.5, caption=
UV-Vis plots of PI films, figureFileSmall=nuSRUHbDcud68sLFpJBlqA==, figureFileBig=zir2VIO7GnK6Ly/mA6FBUA==, tableContent=null), ArticleFig(id=1245100053140980038, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=CN, label=图5, caption=
PI薄膜的UV-Vis曲线, figureFileSmall=nuSRUHbDcud68sLFpJBlqA==, figureFileBig=zir2VIO7GnK6Ly/mA6FBUA==, tableContent=null), ArticleFig(id=1245100053245837647, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=EN, label=Fig 6, caption=
CIE Lab optical parameters of colloidal silica/DMAc dispersion and PI films, figureFileSmall=Y+tV4Hx6Wno7t2MeMPusPA==, figureFileBig=2kNC3LenCUaNHvmFlD4maw==, tableContent=null), ArticleFig(id=1245100053350695255, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=CN, label=图6, caption=
胶体SiO2/DMAc分散液以及PI薄膜的CIE Lab光学参数, figureFileSmall=Y+tV4Hx6Wno7t2MeMPusPA==, figureFileBig=2kNC3LenCUaNHvmFlD4maw==, tableContent=null), ArticleFig(id=1245100053476524386, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=EN, label=Fig.7, caption=
TGA and DTG plots of PI films, figureFileSmall=N/t1y3YBPSqOZ7grLCsndg==, figureFileBig=poEOdgtCtoqnChSIOKSvtw==, tableContent=null), ArticleFig(id=1245100053572993382, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=CN, label=图7, caption=
PI薄膜的TGA与DTG曲线, figureFileSmall=N/t1y3YBPSqOZ7grLCsndg==, figureFileBig=poEOdgtCtoqnChSIOKSvtw==, tableContent=null), ArticleFig(id=1245100053686239594, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=EN, label=Fig.8, caption=
TMA plots of PI films, figureFileSmall=8fyWp6TIhZ8cBR+0GdcRQQ==, figureFileBig=LHB18j2T4Mni2VVx4CetpQ==, tableContent=null), ArticleFig(id=1245100053782708590, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=CN, label=图8, caption=
PI薄膜的TMA曲线, figureFileSmall=8fyWp6TIhZ8cBR+0GdcRQQ==, figureFileBig=LHB18j2T4Mni2VVx4CetpQ==, tableContent=null), ArticleFig(id=1245100053862400369, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=EN, label=Fig.9, caption=
Dielectric spectra of PI films, figureFileSmall=NGqyco5n0R46H0SzlOmQaQ==, figureFileBig=EN8493sXZa8UlHhFNYyT9A==, tableContent=null), ArticleFig(id=1245100053933703542, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=CN, label=图9, caption=
PI薄膜的介电谱图, figureFileSmall=NGqyco5n0R46H0SzlOmQaQ==, figureFileBig=EN8493sXZa8UlHhFNYyT9A==, tableContent=null), ArticleFig(id=1245100054025978237, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=EN, label=Tab.1, caption=
Optical properties of colloidal silica/DMAc dispersion and PI films, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品 | λcut/nm | T550/% | L* | a* | b* | 浊度/% |
|---|
| 胶体SiO2分散液 | — | — | 99.93 | 0.05 | 0.71 | — |
| PI-0 | 436 | 67.9 | 86.80 | -5.51 | 88.55 | 0.68 |
| PI-5 | 450 | 42.6 | 80.78 | -1.35 | 90.96 | 24.17 |
| PI-10 | 458 | 19.1 | 76.65 | 1.19 | 90.20 | 65.27 |
| PI-20 | 464 | 17.5 | 66.86 | 10.22 | 91.30 | 63.80 |
| PI-25 | 466 | 13.6 | 66.58 | 9.63 | 89.63 | 68.25 |
), ArticleFig(id=1245100054105670016, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=CN, label=表1, caption=
胶体SiO2/DMAc分散液以及PI薄膜的光学性能
, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品 | λcut/nm | T550/% | L* | a* | b* | 浊度/% |
|---|
| 胶体SiO2分散液 | — | — | 99.93 | 0.05 | 0.71 | — |
| PI-0 | 436 | 67.9 | 86.80 | -5.51 | 88.55 | 0.68 |
| PI-5 | 450 | 42.6 | 80.78 | -1.35 | 90.96 | 24.17 |
| PI-10 | 458 | 19.1 | 76.65 | 1.19 | 90.20 | 65.27 |
| PI-20 | 464 | 17.5 | 66.86 | 10.22 | 91.30 | 63.80 |
| PI-25 | 466 | 13.6 | 66.58 | 9.63 | 89.63 | 68.25 |
), ArticleFig(id=1245100054185361794, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=EN, label=Tab.2, caption=
Thermal properties of PI films, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品 | Tg/℃ | T5%/℃ | T10%/℃ | Rw750/% | Tmax/℃ | CTE1/(×10-6 K-1) | CTE2/(×10-6 K-1) |
|---|
| PI-0 | 384 | 597 | 613 | 64 | 626 | 39.0 | 103.0 |
| PI-5 | 389 | 603 | 618 | 66 | 629 | 36.7 | 64.9 |
| PI-10 | 389 | 610 | 625 | 68 | 632 | 39.2 | 41.5 |
| PI-20 | 403 | 608 | 623 | 72 | 628 | 40.0 | 27.8 |
| PI-25 | 416 | 611 | 627 | 73 | 631 | 40.9 | 28.9 |
), ArticleFig(id=1245100054290219399, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=CN, label=表2, caption=
PI薄膜的热性能
, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品 | Tg/℃ | T5%/℃ | T10%/℃ | Rw750/% | Tmax/℃ | CTE1/(×10-6 K-1) | CTE2/(×10-6 K-1) |
|---|
| PI-0 | 384 | 597 | 613 | 64 | 626 | 39.0 | 103.0 |
| PI-5 | 389 | 603 | 618 | 66 | 629 | 36.7 | 64.9 |
| PI-10 | 389 | 610 | 625 | 68 | 632 | 39.2 | 41.5 |
| PI-20 | 403 | 608 | 623 | 72 | 628 | 40.0 | 27.8 |
| PI-25 | 416 | 611 | 627 | 73 | 631 | 40.9 | 28.9 |
), ArticleFig(id=1245100054395077002, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=EN, label=Tab.3, caption=
Dielectric properties of PI films, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品 | 体积电阻率 /(×1016 Ω·cm) | Dk (103 Hz) | Dk (106 Hz) | Df (103 Hz) | Df (106 Hz) |
|---|
| PI-0 | 75.4 | 3.26 | 3.20 | 0.002 | 0.006 |
| PI-5 | 28.9 | 3.40 | 3.36 | 0.002 | 0.004 |
| PI-10 | 18.1 | 3.37 | 3.33 | 0.002 | 0.004 |
| PI-20 | 5.0 | 3.45 | 3.42 | 0.002 | 0.004 |
| PI-25 | 6.5 | 3.63 | 3.58 | 0.003 | 0.005 |
), ArticleFig(id=1245100054499934610, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1242756976099311924, language=CN, label=表3, caption=
PI薄膜的介电性能
, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品 | 体积电阻率 /(×1016 Ω·cm) | Dk (103 Hz) | Dk (106 Hz) | Df (103 Hz) | Df (106 Hz) |
|---|
| PI-0 | 75.4 | 3.26 | 3.20 | 0.002 | 0.006 |
| PI-5 | 28.9 | 3.40 | 3.36 | 0.002 | 0.004 |
| PI-10 | 18.1 | 3.37 | 3.33 | 0.002 | 0.004 |
| PI-20 | 5.0 | 3.45 | 3.42 | 0.002 | 0.004 |
| PI-25 | 6.5 | 3.63 | 3.58 | 0.003 | 0.005 |
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