本文關(guān)鍵詞：三維中空復(fù)合材料的電性能研究　出處：《玻璃鋼/復(fù)合材料》2017年10期 　論文類型：期刊論文

  更多相關(guān)文章： 三維中空復(fù)合材料 介電常數(shù) 損耗角正切值 平拉強度

【摘要】：為研究三維中空復(fù)合材料電性能及力學(xué)性能,采用真空導(dǎo)流工藝制備了三種不同高度的三維中空復(fù)合材料,采用諧振腔法研究了三種復(fù)合材料的相對介電常數(shù)(εr)、損耗角正切值(tanδ),并測試了其在1~12 GHz頻帶下的透波性能,同時對三種復(fù)合材料的平壓強度和平拉強度進(jìn)行了研究測試。研究表明:三維中空復(fù)合材料隨著厚度的增加,其相對介電常數(shù)和損耗角正切值不斷減小,5 mm、6 mm和8 mm三維中空復(fù)合材料的相對介電常數(shù)分別為1.93、1.77和1.62,損耗角正切值分別為0.0083、0.0078和0.0065;透波測試表明,在1~12 GHz頻帶下,三種材料的透波性能均小于0.2 d B;并且三維中空復(fù)合材料平壓強度和平拉強度隨織物高度的增加而降低,5 mm、6 mm和8 mm試樣平壓強度分別為5.8 MPa、4.6 MPa和3.8 MPa,平拉強度分別為7.8 MPa、6.4 MPa和5.2 MPa。以上研究說明三維中空復(fù)合材料具有優(yōu)異的電性能和力學(xué)性能。
[Abstract]:In order to study the electrical and mechanical properties of three dimensional hollow composites, three kinds of three dimensional hollow composites with different heights were prepared by vacuum flow conduction process. The relative dielectric constant (蔚 r) and loss angle tangent value (tan 未) of three composite materials have been studied by resonator method, and their transmittance has been measured in the frequency band of 1 ~ (12) GHz. The results show that the relative dielectric constant and loss angle tangent of the three kinds of composites decrease with the increase of thickness. The relative dielectric constants of 5mm / 6mm and 8mm 3D hollow composites are 1.93 ~ 1.77 and 1.62 respectively, and the tangent value of loss angle is 0.0083 respectively. 0.0078 and 0.0065; The wave transmittance measurements show that the transmittance of the three materials is less than 0.2 dB under the frequency band of 1 ~ (12) GHz. With the increase of fabric height, the flat compressive strength and tensile strength of 3D hollow composites decreased by 5 mm or 6 mm and 8 mm, respectively, by 5.8 MPa. The horizontal tensile strength of 4.6 MPa and 3.8 MPA was 7.8 MPa, respectively. 6. 4 MPa and 5. 2 MPa. The above results show that 3D hollow composites have excellent electrical and mechanical properties.
【作者單位】： 中材科技股份有限公司;
【分類號】：TB332
【正文快照】： 本文作者還有陳同海。三維中空織物采用特殊工藝整體機織而成,其結(jié)構(gòu)類似于傳統(tǒng)夾層結(jié)構(gòu),但與夾層結(jié)構(gòu)不同。三維中空織物的上下面層和絨經(jīng)分別由經(jīng)紗(地經(jīng)紗和絨經(jīng)紗)和緯紗依次交織而成,絨經(jīng)貫穿上下面層形成了具有類似三明治結(jié)構(gòu)的三維中空織物[1-3]。三維中空織物克服了傳

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