Effects on the thermal expansion coefficient and dielectric properties of CLST/PTFE filled with modified glass fiber as microwave material

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英文篇名：Effects on the thermal expansion coefficient and dielectric properties of CLST/PTFE filled with modified glass fiber as microwave material 作者：Liu ; Zheng ; Jing ; Zhou ; Jie ; Shen ; Yanyuan ; Qi ; Wen ; Chen 英文作者：Liu Zheng;Jing Zhou;Jie Shen;Yanyuan Qi;Wen Chen;State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology; 英文关键词：Microwave communication;;Thermal expansion coefficient;;CLST;;PTFE;;Dielectric loss;;Dielectric constant 中文刊名：FXKB 英文刊名：中国化学快报(英文版) 机构：State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology; 出版日期：2019-05-15 出版单位：Chinese Chemical Letters 年：2019 期：v.30 基金：supported by the National Natural Science Foundation of China(No.51572205);; the Equipment Pre-Research Joint Fund of EDD and MOE(No.6141A02033209);; the Fundamental Research Funds for the Central Universities(WUT:Nos.2017III035,2018III019);; the Natural Science Foundation of Hubei Province,China(No.2014CFB854) 语种：英文; 页：FXKB201905041 页数：4 CN：05 ISSN：11-2710/O6 分类号：191-194

摘要

Ceramic and polytetrafluoroethylene composites as dielectric materials have a low dielectric loss at high frequency and play an important role in the modern communication field. However, room temperature phase transformation of PTFE resins, which is accompanied by a large volume change(> 400 ppm/℃),seriously affects the dimensional stability and performance stability of materials. The LD125 modified glass fiber(GF) was introduced to the CaO-Li_2 O-Sm_2O_3-TiO_2(CLST)/PTFE composite, to reduce the thermal expansion coefficient(CTE) of the composites. The tri-phase composites(CLST/PTFE/GF) show the low dielectric loss and excellent machine-ability. The effect of GF content on the dielectric properties and CTE was also investigated. The CLST/PTFE filled with 5% GF exhibits the best overall performance,which is a promising microwave dielectric material for microwave communication.
        Ceramic and polytetrafluoroethylene composites as dielectric materials have a low dielectric loss at high frequency and play an important role in the modern communication field. However, room temperature phase transformation of PTFE resins, which is accompanied by a large volume change(> 400 ppm/℃),seriously affects the dimensional stability and performance stability of materials. The LD125 modified glass fiber(GF) was introduced to the CaO-Li_2 O-Sm_2O_3-TiO_2(CLST)/PTFE composite, to reduce the thermal expansion coefficient(CTE) of the composites. The tri-phase composites(CLST/PTFE/GF) show the low dielectric loss and excellent machine-ability. The effect of GF content on the dielectric properties and CTE was also investigated. The CLST/PTFE filled with 5% GF exhibits the best overall performance,which is a promising microwave dielectric material for microwave communication.

引文

[1]L.Zheng,J.Zhou,J.Shen,et al.,J.Mater.Sci.Mater.Electron.29(2018)17195-17200.
    [2]S.Vaucher,V.V.Yakovlev,H.Yeung,Polym.Eng.Sci.58(2018)319-326.
    [3]J.Castro,E.A.Rojas-Nastrucci,A.Ross,T.M.Weller,J.Wang,IEEE Trans.Microw.Theory Tech.65(2017)2073-2084.
    [4]C.Xie,F.Liang,M.Ma,et al.,Crystals 7(2017)126.
    [5]P.S.Anjana,M.T.Sebastian,M.N.Suma,P.Mohanan,Int.J.Appl.Ceram.Technol.5(2008)325-333.
    [6]C.Pan,K.Kou,Q.Jia,et al.,Compos.Part B-Eng.111(2017)83-90.
    [7]Y.Qi,Q.Luo,J.Shen,et al.,Appl.Surf.Sci.414(2017)147-152.
    [8]T.S.Sasikala,M.T.Sebastian,Ceram.Int.42(2016)7551-7563.
    [9]I.G.Lee,D.H.Kim,K.H.Jung,H.J.Kim,H.S.Kim,Compos.Struct.177(2017)28-37.
    [10]Z.Li,J.Liu,Y.Yuan,E.Li,F.Wang,RSC Adv.7(2017)22810-22817.
    [11]F.Luo,B.Tang,Y.Yuan,Z.Fang,S.Zhang,Appl.Surf.Sci.436(2018)900-906.
    [12]G.Luo,W.Li,W.Liang,et al.,Compos.Part B-Eng.111(2017)190-199.
    [13]W.Yang,Y.R.Zhang,A.C.Y.Yuen,et al.,Chem.Eng.J.321(2017)257-267.
    [14]L.Zheng,J.Zhou,J.Shen,et al.,J.Mater.Sci.Mater.Electron.28(2017)11665-11670.